Composite steel pipe for downhole water supply and drainage

Abstract

The application discloses a kind of composite steel pipes for downhole water supply and drainage, it is related to composite steel pipe technical field, including steel pipe, multiple steel pipe head tail butt joint, form downhole water supply and drainage pipeline structure, the outer surface of the steel pipe is provided with arc-shaped guard plate one and arc-shaped guard plate two, the end of the arc-shaped guard plate one and arc-shaped guard plate two extends outward and forms flange and is connected by bolt.The application can maintain the stable state of steel pipe, avoid the deviation phenomenon of steel pipe in the process of laying, cutting and water supply and drainage use.At the same time, in the installation process of steel pipe, the influence of steel pipe vibration process on arc-shaped guard plate two and support seat can be reduced, and the deviation phenomenon of arc-shaped guard plate two and support seat due to vibration can be avoided.Moreover, the moving unit can improve the load capacity from the bottom of the steel pipe, can avoid the cutting line of laser cutting machine, and does not affect the normal implementation of laser cutting work.

Description

Technical Field

[0001] This invention relates to the field of composite steel pipe technology, and in particular to a composite steel pipe for underground water supply and drainage. Background Technology

[0002] Building water supply and drainage systems actually include two aspects: building water supply systems and building drainage systems. The main tasks of water supply and drainage systems are to meet the cold water, hot water and drainage requirements of building production and daily life, as well as to treat and comprehensively utilize wastewater. In addition, building water supply and drainage systems mainly transport water through water supply and drainage pipes.

[0003] Existing composite steel pipe structures used for water supply and drainage typically employ supports beneath the pipes to facilitate movement, connection, and stable installation. However, during pipe movement, gaps can easily form between the supports and the pipes, causing the pipes to slip and affecting stability during connection. Furthermore, during pipe hoisting and installation, vibrations can occur when the pipes are placed on the supports, leading to support shifting and potentially affecting the accuracy of the installation route. Summary of the Invention

[0004] The purpose of this application is to provide a composite steel pipe for underground water supply and drainage.

[0005] To achieve the above objectives, this application provides the following technical solution: a composite steel pipe for underground water supply and drainage, comprising a steel pipe, wherein multiple steel pipes are joined end-to-end to form an underground water supply and drainage pipeline structure, wherein an arc-shaped protective plate one and an arc-shaped protective plate two are provided on the outer surface of the steel pipe, wherein the ends of the arc-shaped protective plate one and the arc-shaped protective plate two extend outward to form flanges and are connected by bolts, wherein a detachable alignment structure is provided in the interlayer space formed by the arc-shaped protective plate one, the arc-shaped protective plate two and the outer wall of the steel pipe, and the alignment structure is provided with a clamp structure along the circumferential direction of the steel pipe.

[0006] A support base is provided below the steel pipe. A detachable movable unit is provided in the space between the inner side of the support base and the arc-shaped guard plate II. The movable unit passes through the arc-shaped guard plate II and abuts against the surface of the steel pipe. The movable unit can move along the direction of the steel pipe.

[0007] Furthermore, the alignment structure includes a pair of alignment seats that are detachably connected to the surface of the steel pipe. The pair of alignment seats are vertically distributed at both ends of the diameter of the steel pipe, and each of the alignment seats has a receiving cavity on its surface.

[0008] Both the first and second arc-shaped guard plates are detachably connected to a pair of limiting seats at their inner center. The inner cavity of the limiting seats is connected to a roller body via a rotating shaft. When the first and second arc-shaped guard plates are installed on the outside of the steel pipe, the roller body abuts against the inner wall of the accommodating cavity.

[0009] Furthermore, the clamp structure includes a plurality of symmetrically distributed first clamp strips and second clamp strips, which are respectively fixed to the sides of the upper and lower limiting seats.

[0010] The curvature of the first and second hoop bars is the same as that of the first and second arc-shaped guard plates. Multiple inner rods are fixedly connected to the surfaces of the first and second hoop bars. A thrust rod is slidably connected to one end of each inner rod near the steel pipe. A limit block is fixedly connected to the end of the thrust rod. The limit block abuts against the surface of the steel pipe, and the limit block is connected to the opposite side of the inner rod through a pressure spring, so as to realize the extension and retraction movement of the thrust rod limit block along the direction of the inner rod.

[0011] Furthermore, both ends of the top of the support base are detachably connected to docking platforms, and the flange portions of the first and second arc-shaped guard plates are detachably connected to the docking platforms.

[0012] Furthermore, the moving unit includes multiple bearing plates that abut against the lower surface of the steel pipe, and each of the multiple bearing plates is fixedly connected to an extension bracket at its bottom. The surface of the arc-shaped guard plate is provided with a channel to accommodate the sliding of the extension bracket.

[0013] The bottom of each extension bracket is fixedly connected to an alignment shaft. The front and rear alignment shafts extend to the inside of the same positioning sliding seat. The bottom of the positioning sliding seat is provided with a pulley. The inner bottom wall of the support seat is detachably connected with a track adapted to the pulley.

[0014] Furthermore, the surface of the positioning sliding seat is provided with a pair of through holes, and a liftable limiting pin is provided on the through holes. The limiting pin has an inverted U-shaped structure. When the front and rear alignment shafts slide to the extreme position inside the positioning sliding seat, the limiting pin can penetrate the through hole and the alignment shaft.

[0015] Furthermore, a clamping arm is detachably connected to the center of the outer surface of the positioning sliding seat. The limiting pin is located on the inner side of the clamping arm, and a drive handle is rotatably connected to the center of the limiting pin. A channel for accommodating the sliding of the drive handle is opened on the side of the clamping arm. When the limiting pin and the drive handle slide upward to the limit position on the inner side of the clamping arm, the limiting pin can rotate on the drive handle until the two legs of the limiting pin move away from the through hole.

[0016] In summary, the technical effects and advantages of this invention are as follows:

[0017] 1. The present invention is provided with a detachable alignment structure. During the docking process of the steel pipe with the first and second arc-shaped protective plates, the connection between the internal roller body and the inner wall of the accommodating cavity can maintain the stability of the steel pipe when it is installed on the first and second arc-shaped protective plates and located inside the first and second arc-shaped protective plates, thus avoiding the displacement of the steel pipe during laying, cutting and water supply and drainage.

[0018] 2. In the process of installing the steel pipe, the limiting block inside the clamp structure can be squeezed and contracted. The elastic potential energy of the pressure spring counteracts the vibration force of the steel pipe, reduces the impact of the steel pipe vibration process on the second arc-shaped guard plate and the support seat, and avoids the second arc-shaped guard plate and the support seat from shifting due to vibration.

[0019] 3. The bearing plate in the moving unit of this invention can disperse the pressure of the steel pipe on the clamping structure and alignment structure, and increase the load force from below the steel pipe, preventing deformation of the clamping structure, alignment structure, and arc-shaped guard plate due to the large weight of the steel pipe during long-term operation. The entire moving unit can be controlled to slide within the track. This allows the moving unit and its internal bearing plate to avoid the cutting path of the laser cutting machine, without affecting the normal implementation of laser cutting work, and offers the advantage of portable operation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the second perspective structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection structure between the arc-shaped guard plate 1, the arc-shaped guard plate 2, and the support base of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged structural diagram of section A;

[0025] Figure 5 This is a schematic diagram of the steel pipe structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the clamp structure, alignment structure, and steel pipe connection structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the connection structure between the moving unit and the support base of the present invention;

[0028] Figure 8 This is a schematic diagram of the moving unit structure of the present invention.

[0029] In the diagram: 1. Steel pipe; 101. Alignment seat; 102. Accommodating cavity; 2. Arc-shaped guard plate one; 201. Limiting seat; 202. Roller body; 3. Arc-shaped guard plate two; 4. Support seat; 5. Docking platform; 6. First hoop; 7. Second hoop; 8. Inner connecting rod; 9. Thrust rod; 10. Limiting block; 11. Compression spring; 12. Bearing plate; 13. Extension bracket; 14. Alignment shaft; 15. Positioning sliding seat; 151. Pulley; 16. Limiting pin; 17. Clamping arm; 18. Drive handle. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: Reference Figure 1 , Figure 2 The illustrated composite steel pipe for underground water supply and drainage includes a steel pipe 1. Multiple steel pipes 1 are joined end-to-end to form an underground water supply and drainage pipeline structure. The outer surface of the steel pipe 1 is provided with an arc-shaped protective plate 2 and an arc-shaped protective plate 3. The ends of the arc-shaped protective plates 2 and 3 extend outward to form flanges and are connected by bolts. During installation, the arc-shaped protective plates 2 and 3 form a fixed module. The number of modules can be adjusted according to the number of steel pipes 1, thereby improving the structural strength of the steel pipe 1.

[0032] A detachable alignment structure is installed within the interlayer space formed by the first and second curved guard plates 2 and 3, and the outer wall of the steel pipe 1. This structure prevents the steel pipe 1 from shifting during operation. When hoisting the steel pipe 1 to the inside of the first and second curved guard plates 2 and 3, the first curved guard plate 2 must be disassembled first, keeping the second curved guard plate 3 open. The alignment structure has clamping structures along the circumferential direction of the steel pipe 1, improving the stability of the second curved guard plate 3 when the steel pipe 1 is hoisted onto it.

[0033] During the actual installation of the underground steel pipe 1, to facilitate the connection of the steel pipe 1, the steel pipe 1 is not placed directly on the underground installation surface. A support base 4 is installed below the steel pipe 1, and the support base 4 is placed on the installation surface. Depending on the underground installation environment, the steel pipe 1 needs to be cut on-site. A detachable moving unit is installed in the space between the inner side of the support base 4 and the arc-shaped protective plate 3. The moving unit passes through the arc-shaped protective plate 3 and abuts against the surface of the steel pipe 1. The moving unit can move along the direction of the steel pipe 1 to adapt to the cutting path of the steel pipe 1.

[0034] like Figure 3 , Figure 5 As shown, the alignment structure includes a pair of alignment seats 101 detachably connected to the surface of the steel pipe 1. The pair of alignment seats 101 are vertically distributed at both ends of the diameter of the steel pipe 1, and each of the alignment seats 101 has a receiving cavity 102 on its surface.

[0035] Both the arc-shaped guard plate 1 2 and the arc-shaped guard plate 2 3 are detachably connected to a pair of limiting seats 201 at their inner center. The inner cavity of the limiting seat 201 is connected to a roller body 202 via a rotating shaft. When the arc-shaped guard plate 1 2 and the arc-shaped guard plate 2 3 are installed on the outside of the steel pipe 1, the roller body 202 abuts against the inner wall of the accommodating cavity 102.

[0036] By connecting the roller body 202 to the inner wall of the accommodating cavity 102, the steel pipe 1 can maintain a stable state when it is installed on the inner side of the arc-shaped guard plate 1 2 and the arc-shaped guard plate 2 3, thus preventing the steel pipe 1 from shifting during laying, cutting, and water supply and drainage.

[0037] like Figure 3 , Figure 4 As shown, the clamp structure includes multiple symmetrically distributed first clamp strips 6 and second clamp strips 7, which are fixed to the sides of the upper and lower limiting seats 201 respectively.

[0038] The curvature of the first hoop 6 and the second hoop 7 is the same as that of the arc-shaped guard plate 1 2 and the arc-shaped guard plate 2 3. Multiple inner rods 8 are fixedly connected to the surfaces of the first hoop 6 and the second hoop 7. A thrust rod 9 is slidably connected to one end of the multiple inner rods 8 near the steel pipe 1. A limit block 10 is fixedly connected to the end of the thrust rod 9. The limit block 10 abuts against the surface of the steel pipe 1. The limit block 10 is connected to the opposite side of the inner rod 8 through a pressure spring 11, so as to realize the extension and retraction movement of the thrust rod 9 and the limit block 10 along the direction of the inner rod 8.

[0039] During the underground laying of steel pipe 1, as steel pipe 1 needs to be hoisted and connected to the arc-shaped protective plate 2 3 and its inner clamp structure, vibration is easily generated during the connection process until the alignment structure corresponds and the installation of steel pipe 1 is completed. During this process, the limiting block 10 can be compressed and contracted, and the elastic potential energy of the pressure spring 11 counteracts the vibration force of steel pipe 1, reducing the impact of steel pipe 1 vibration on arc-shaped protective plate 2 3 and support seat 4, and preventing arc-shaped protective plate 2 3 and support seat 4 from shifting due to vibration.

[0040] like Figure 3 As shown, both ends of the top of the support base 4 are detachably connected to the docking platform 5, and the flange portions of the arc-shaped guard plate 1 2 and the arc-shaped guard plate 2 3 are detachably connected to the docking platform 5. This ensures the stability of the arc-shaped guard plate 1 2 and the arc-shaped guard plate 2 3, thereby preventing the arc-shaped guard plate 1 2 and the arc-shaped guard plate 2 3, as well as the steel pipe 1 inside them, from shifting.

[0041] Example 2: As Figure 3 , Figure 7 , Figure 8 As shown, the moving unit includes multiple bearing plates 12 that abut against the lower surface of the steel pipe 1. Each bearing plate 12 has an extension bracket 13 fixedly connected to its bottom. The surface of the arc-shaped guard plate 3 has a channel to accommodate the sliding of the extension bracket 13. The bearing plates 12 distribute the pressure of the steel pipe 1 on the clamping structure and alignment structure, increasing the load-bearing force from below the steel pipe 1. This prevents deformation of the clamping structure, alignment structure, and arc-shaped guard plate 3 due to the large weight of the steel pipe 1 during long-term operation.

[0042] The bottom of the extension bracket 13 is fixedly connected to the alignment shaft 14. The front and rear alignment shafts 14 extend to the inside of the same positioning slide seat 15. The bottom of the positioning slide seat 15 is provided with a pulley 151. The inner bottom wall of the support seat 4 is detachably connected with a track that matches the pulley 151.

[0043] If cutting is required on the steel pipe 1, the detachable arc-shaped protective plate 2 can be used to laser cut the surface 1 of the steel pipe using a cutting machine. During this process, the entire moving unit can be controlled to slide inside the track. This allows the moving unit and its internal support plate 12 to avoid the cutting path of the laser cutting machine, without affecting the normal implementation of the laser cutting work, and offers the advantage of portable operation. The direction of movement of the moving unit can be controlled according to the different positions of the cutting path on the surface of the pipe 1. For example, if the cutting path is located in the direction in front of the clamp structure or alignment structure on the surface of the pipe 1, the moving unit needs to be controlled to move backward; conversely, if the cutting path is located in the direction in front of the clamp structure or alignment structure on the surface of the pipe 1, the moving unit needs to be controlled to move forward.

[0044] Since the alignment shaft 14 and the positioning sliding seat 15 are detachable structures, if it is necessary to disassemble the arc-shaped guard plate 2 3, the pair of alignment shafts 14, the extension bracket 13 and the bearing plate 12 can be removed, and the arc-shaped guard plate 2 3 can be removed smoothly. Furthermore, as the service life of the steel pipe 1 increases, the alignment shaft 14, the extension bracket 13 and the bearing plate 12 can be disassembled and replaced, ensuring the structural strength of the composite steel pipe 1.

[0045] During the installation of the sliding structure, the positioning sliding seat 15 can be placed on the track in advance, and then the alignment shaft 14 can be installed on the positioning sliding seat 15, which improves the portability of the mobile unit installation process. There is no need to adjust the position of the arc-shaped guard plate 2 3, which also improves the portability of the mobile unit installation process.

[0046] like Figure 7 , Figure 8 As shown, a pair of through holes are provided on the surface of the positioning slide seat 15. A lifting limit pin 16 is provided on the through hole. The limit pin 16 has an inverted U-shaped structure. When the front and rear alignment shafts 14 slide to the extreme position inside the positioning slide seat 15, the limit pin 16 can pass through the through hole and the alignment shafts 14.

[0047] The connection between the limiting pin 16 and the through hole and the alignment shaft 14 can effectively maintain the stability when the alignment shaft 14 is connected to the positioning slide seat 15. During the sliding process of the positioning slide seat 15 and the entire moving unit, the alignment shaft 14, the extension bracket 13 and the bearing plate 12 can be prevented from shifting, thus ensuring the synchronization and accuracy of the moving unit during the sliding process and reducing operational errors.

[0048] like Figure 7 , Figure 8 As shown, a clamping arm 17 is detachably connected to the center of the outer surface of the positioning sliding seat 15. A limiting pin 16 is located inside the clamping arm 17. A drive handle 18 is rotatably connected to the center of the limiting pin 16. A channel for accommodating the sliding of the drive handle 18 is opened on the side of the clamping arm 17. When the limiting pin 16 and the drive handle 18 slide upward to the limit position inside the clamping arm 17, the limiting pin 16 can rotate on the drive handle 18 until the two legs of the limiting pin 16 move away from the through hole.

[0049] When the two legs of the limiting pin 16 are far away from the through hole, the limiting pin 16, which has moved to its limit, can be prevented from falling back into the through hole and the alignment shaft 14 under the action of gravity, so as to facilitate the smooth operation of the alignment shaft 14, the extension bracket 13 and the carrier plate 12, and effectively avoid the obstruction of the limiting pin 16 during the operation.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A composite steel pipe for underground water supply and drainage, comprising steel pipes (1), wherein multiple steel pipes (1) are joined end-to-end to form an underground water supply and drainage pipeline structure, characterized in that: The outer surface of the steel pipe (1) is provided with an arc-shaped protective plate one (2) and an arc-shaped protective plate two (3). The ends of the arc-shaped protective plate one (2) and the arc-shaped protective plate two (3) extend outward to form a flange and are connected by bolts. A detachable alignment structure is provided in the interlayer space formed by the arc-shaped protective plate one (2), the arc-shaped protective plate two (3) and the outer wall of the steel pipe (1). The alignment structure is provided with a clamp structure along the ring direction of the steel pipe (1). A support base (4) is provided below the steel pipe (1). A detachable moving unit is provided in the space between the inner side of the support base (4) and the arc-shaped guard plate (3). The moving unit passes through the arc-shaped guard plate (3) and abuts against the surface of the steel pipe (1). The moving unit can move along the direction of the steel pipe (1). The alignment structure includes a pair of alignment seats (101) detachably connected to the surface of the steel pipe (1). The pair of alignment seats (101) are vertically distributed at both ends of the diameter of the steel pipe (1), and each of the alignment seats (101) has a receiving cavity (102) on its surface. Both the arc-shaped guard plate one (2) and the arc-shaped guard plate two (3) are detachably connected to a pair of limiting seats (201). The inner cavity of the limiting seat (201) is connected to a roller body (202) through a rotating shaft. When the arc-shaped guard plate one (2) and the arc-shaped guard plate two (3) are installed on the outside of the steel pipe (1), the roller body (202) abuts against the inner wall of the accommodating cavity (102). The clamp structure includes a plurality of symmetrically distributed first clamp strips (6) and second clamp strips (7), wherein the first clamp strips (6) and second clamp strips (7) are respectively fixed to the sides of the upper and lower limiting seats (201); The curvature of the first hoop (6) and the second hoop (7) is the same as that of the first arc guard plate (2) and the second arc guard plate (3). The surfaces of the first hoop (6) and the second hoop (7) are fixedly connected with multiple inner rods (8). The ends of the multiple inner rods (8) near the steel pipe (1) are slidably connected with a thrust rod (9). The end of the thrust rod (9) is fixedly connected with a limit block (10). The limit block (10) abuts against the surface of the steel pipe (1). The limit block (10) is connected to the opposite side of the inner rod (8) through a pressure spring (11), so as to realize the extension and retraction movement of the thrust rod (9) and the limit block (10) along the direction of the inner rod (8). The moving unit includes multiple bearing plates (12) that abut against the lower surface of the steel pipe (1). The bottom of each of the multiple bearing plates (12) is fixedly connected to an extension bracket (13). The surface of the arc-shaped guard plate (3) is provided with a channel to accommodate the sliding of the extension bracket (13). The bottom of each extension bracket (13) is fixedly connected to an alignment shaft (14). The front and rear alignment shafts (14) extend to the inside of the same positioning slide seat (15). The bottom of the positioning slide seat (15) is provided with a pulley (151). The inner bottom wall of the support seat (4) is detachably connected with a track adapted to the pulley (151).

2. The composite steel pipe for underground water supply and drainage according to claim 1, characterized in that: The top two ends of the support base (4) are detachably connected to docking platforms (5), and the flange portions of the arc-shaped guard plate one (2) and arc-shaped guard plate two (3) are detachably connected to the docking platforms (5).

3. The composite steel pipe for underground water supply and drainage according to claim 1, characterized in that: The surface of the positioning sliding seat (15) is provided with a pair of through holes, and a lifting limit pin (16) is provided on the through holes. The limit pin (16) has an inverted U-shaped structure. When the front and rear alignment shafts (14) slide to the extreme position inside the positioning sliding seat (15), the limit pin (16) can penetrate the through hole and the alignment shaft (14).

4. A composite steel pipe for underground water supply and drainage according to claim 3, characterized in that: The positioning sliding seat (15) is detachably connected to a clamping arm (17) at the center of its outer surface. The limiting pin (16) is located inside the clamping arm (17). The center of the limiting pin (16) is rotatably connected to a drive handle (18). The side of the clamping arm (17) is provided with a channel to accommodate the sliding of the drive handle (18). When the limiting pin (16) and the drive handle (18) slide upward to the limit position inside the clamping arm (17), the limiting pin (16) can rotate on the drive handle (18) until the two legs of the limiting pin (16) move away from the through hole.

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