Steel buoy for underwater sinking pipe

Abstract

The utility model discloses a steel buoy for an underwater sinking pipe, which comprises a buoy body, end plates are arranged at two ends of the buoy body to realize sealing, a water inlet hole and a water inlet valve are arranged on one end plate, and an exhaust hole and an exhaust valve are arranged on the other end plate; a plurality of cross-shaped supporting rods and a plurality of linear supporting rods are arranged in the barrel body, each cross-shaped supporting rod is formed by vertically connecting a first rod body and a second rod body, and the first rod bodies and the linear supporting rods are arranged in the same radial direction of the barrel body; a lifting lug seat is arranged on the outer side wall, directly facing the cylinder body, of the rod end part of the same side of the first rod body and the linear supporting rod, a lifting lug seat is also arranged on the outer side wall, directly facing the cylinder body, of the rod end part of the same side of the second rod body, and a lifting lug hole is formed in each lifting lug seat. The whole steel buoy is simple in structure, easy to manufacture, low in cost and easy to use and operate.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater submerged pipes, in particular to a steel buoy for underwater submerged pipes. Background Art

[0002] In the construction of submerged pipes, when a crane ship is used to sink the pipe, a steel buoy is often used to assist the sinking. The crane ship applies a lifting force at both ends and the middle of the pipe section, and the steel buoy is used between each lifting point to provide buoyancy. Then water is injected into the pipe to release the lifting rope, so that it can sink naturally. Most of the existing steel buoys have a relatively complex structure and high manufacturing cost. For example, the specification of the Chinese utility model patent CN208774972U discloses a buoy for a submerged pipe, which includes a symmetrically arranged left buoy and a right buoy, and the left buoy and the right buoy are detachably connected; when the left buoy and the right buoy are connected, a torus is formed, and the inner diameter of the torus is equal to the outer diameter of the pipe, so that it can fit tightly with the pipe; at both ends of the left buoy and the right buoy, the radius of the torus gradually decreases to form an inclined surface toward the end of the pipe. The structural design and manufacturing process of the steel buoy of this structure are complex, which greatly increases the construction cost. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a steel buoy for underwater submerged pipes, which has a simple structure, is easy to operate, is easy to manufacture and has a low cost.

[0004] The utility model provides a steel buoy for underwater submerged pipes, comprising a cylinder body, both ends of the cylinder body are provided with end plates to achieve sealing, one of the end plates is provided with a water inlet hole and a water inlet valve, and the other end plate is provided with an exhaust hole and an exhaust valve; a plurality of cross struts and a plurality of straight struts are provided inside the cylinder body, each of the cross struts is composed of a first rod body and a second rod body vertically connected, and the first rod body and the straight strut are arranged along the same radial direction of the cylinder body; a lifting ear seat is provided on the outer side wall of the cylinder body facing the rod end on the same side of the first rod body and the straight strut, and a lifting ear seat is also provided on the outer side wall of the cylinder body facing the rod end on the same side of the second rod body, and each of the lifting ear seats is provided with a lifting ear hole, and the lifting ear hole is used to connect a lifting wire rope.

[0005] In the above-mentioned steel buoy for underwater submerged pipe, a plurality of cross braces and straight braces are arranged in the cylinder body to support and connect the cylinder body to ensure the structural strength for use, and then the steel buoy body is formed by sealing the two ends of the end plate, which has a simple structure, is easy to manufacture, and has low cost. In addition, by arranging the lifting ear holes, it can cooperate with the lifting wire rope to realize the lifting of the steel buoy, and the operation is simple.

[0006] Furthermore, there are two cross braces and two straight braces, respectively, which are spaced apart along the axial direction of the cylinder.

[0007] Furthermore, each of the cross braces is spaced L / 4 from a closer end plate, and an allowable deviation value is no greater than a, wherein L is the axial length of the cylinder.

[0008] Furthermore, each of the I-shaped struts is spaced L / 6 from a closer end plate, and an allowable deviation value is no greater than b, wherein L is the axial length of the cylinder.

[0009] Furthermore, the second rod body is arranged along the radial direction of the cylinder body.

[0010] Furthermore, ribs are arranged on the outer side of the end plate.

[0011] Furthermore, the ribs are made of hot-rolled equal-angle steel and are arranged at intervals in the horizontal and vertical directions.

[0012] Furthermore, the four rod ends of each of the cross braces and the two rod ends of each of the straight braces are welded and fixed to the inner side wall of the cylinder.

[0013] Furthermore, the first rod body, the second rod body and the I-shaped support rod are all made of I-beams, and fixed ribs are provided at the fixed connection between the end of each rod and the inner wall of the cylinder.

[0014] Furthermore, four reinforcing ribs are provided at the fixed connection in the middle of the cross brace.

[0015] In summary, the above-mentioned steel buoy for underwater submerged pipes has a simple structure, simple operation, easy manufacturing and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In the attached picture:

[0017] Figure 1 It is an axial cross-sectional view of the steel buoy for underwater submerged pipe of the utility model.

[0018] Figure 2 The utility model is a structural diagram of an end plate of a steel buoy for underwater submerged pipes.

[0019] Figure 3 This is a structural diagram of the other end plate of the steel buoy for underwater submerged pipes of the utility model.

[0020] Figure 4 for Figure 1 AA cross-section diagram.

[0021] Figure 5 The utility model is a schematic diagram of the binding of the cylinder body and the steel pipe of the steel buoy for underwater submerged pipe.

[0022] In the figure, 1, cylinder; 2, end plate; 21, rib; 3, water inlet valve; 4, exhaust valve; 5, cross support rod; 51, first rod body; 52, second rod body; 53, reinforcing rib; 6, straight support rod; 61, fixed rib; 7, lifting ear seat; 71, lifting ear hole; 8, steel pipe, 9, binding wire rope. DETAILED DESCRIPTION

[0023] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation modes is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0024] Example 1

[0025] Figure 1-5 The utility model shows a steel buoy for underwater submerged pipes. Figure 1-5 As shown, the underwater submerged pipe steel buoy includes a cylinder bundle 1, both ends of the cylinder bundle 1 are provided with end plates 2 to achieve sealing, one end plate bundle 2 is provided with a water inlet hole and a water inlet valve bundle 3, and the other end plate bundle 2 is provided with an exhaust hole and an exhaust valve bundle 4; the cylinder bundle 1 is provided with a plurality of cross brace rods 5 and a plurality of straight brace rods 6 inside, each cross brace rod 5 is composed of a first rod body 51 and a second rod body 52 vertically connected, the first rod The body binding 51 binding and the I-shaped support rod binding 6 binding are arranged along the same radial direction of the cylinder binding 1 binding; the rod end of the first rod body binding 51 binding and the I-shaped support rod binding 6 binding are both provided with a lifting ear seat binding 7 binding on the outer side wall of the cylinder binding 1 binding, and the rod end of the second rod body binding 52 binding is also provided with a lifting ear seat binding 7 binding on the outer side wall of the cylinder binding 1 binding, and each lifting ear seat binding 7 is provided with a lifting ear hole binding 71 binding, and the lifting ear hole binding 71 binding is used to connect the lifting wire rope.

[0026] The following description is made by taking the steel pontoon specification of D2.4m×12m, thickness σ of 18mm, and Q235B steel as an example.

[0027] Optional, such as Figure 1 As shown, there are two cross-strut bundles 5 and two straight-strut bundles 6, and they are arranged at intervals along the axial direction of the cylinder bundle 1.

[0028] Optionally, the spacing between each cross brace bundle 5 and the nearest end plate bundle 2 is L / 4, i.e., 3000mm, and the allowable deviation value is not greater than a, where L is the axial length of the cylinder bundle 1, 12m. The cross brace 5 plays the role of core support, and the value of a is 500mm, i.e., the allowable deviation value is not greater than 500mm. The spacing between each cross brace bundle 5 and the nearest end plate bundle 2 is 2500-3500mm.

[0029] Optionally, the interval between each cross brace bundle 6 and the nearest end plate bundle 2 is L / 6, and the allowable deviation value is not greater than b, where L is the axial length of the cylinder bundle 1. The value of a is 150mm, that is, the interval between each cross brace bundle 5 and the nearest end plate bundle 2 is 850-1150mm.

[0030] Optional, such as Figure 4 As shown, the second rod body binding 52 is arranged along the radial direction of the cylinder binding 1. The first rod body 51 and the second rod body 52 are vertically connected at their respective midpoints.

[0031] Optional, such as Figure 2 and Figure 3 As shown, the outer side of the end plate bundle 2 is provided with a rib bundle 21. The end plate can be made of Q235B steel with a thickness of 18 mm.

[0032] Optionally, the rib bundle 21 is made of hot-rolled equilateral angle steel, which is spaced in the horizontal and vertical directions. Specifically, the rib bundle 21 can be made of hot-rolled equilateral angle steel with a size of L140mm×140mm×14mm, and the spacing in the horizontal and vertical directions is 450mm.

[0033] Optionally, the four rod ends of each cross brace bundle 5 and the two rod ends of each straight brace bundle 6 are welded and fixed on the inner side wall of the barrel bundle 1. The welding and fixing operation is simple and the connection is reliable.

[0034] Optionally, the first rod body 51, the second rod body 52 and the I-shaped support rod 6 are all made of I-beams, and a fixed rib plate 61 is provided at the fixed connection between the end of each rod and the inner wall of the cylinder 1. I-beams of model 25B can be used.

[0035] In addition, if Figure 1 and Figure 4 As shown, the web surfaces of the first rod body 51 and the first rod body 52 are parallel to the radial cross section of the cylinder body 1; the web surface of the straight support rod 6 is parallel to the axial direction of the cylinder body 1; such a staggered arrangement can improve the radial and axial bearing capacity of the cylinder body 1. The first rod body 51, the second rod body 52 and the fixed ribs 61 of the straight support rod 6 are all fixed to the wing plate.

[0036] Among them, the web of the I-beam refers to the middle plate, the two ends of the web are flanges, and the web surface refers to the central symmetry plane of the web, which is perpendicular to the flange surface.

[0037] Optional, such as Figure 4 As shown, four reinforcing rib bundles 53 are provided at the fixed connection in the middle of the cross brace bundle 5 to enhance the structural strength.

[0038] When in use, firstly, the steel buoy is manufactured and processed according to the structural design drawing, and then the six lifting lug holes 71 are used in conjunction with the lifting wire rope to lift the entire steel buoy to a predetermined position on the water, and the lifting wire rope is removed; finally, the steel pipe and the steel buoy are tied together by the binding wire rope. The specific binding method is as follows: Figure 5 As shown, please make sure that the lifting eye seat binding 7 is away from the steel pipe to avoid damage.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit its protection scope. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that after reading the utility model, those skilled in the art can still make various changes, modifications or equivalent substitutions to the specific implementation methods of the utility model, but these changes, modifications or equivalent substitutions are all within the protection scope of the pending claims of the utility model.

Claims

1. A steel buoy for underwater submerged pipes, characterized in that: The invention comprises a cylinder (1), both ends of which are provided with end plates (2) for sealing, one end plate (2) being provided with a water inlet hole and a water inlet valve (3), and the other end plate (2) being provided with an exhaust hole and an exhaust valve (4); a plurality of cross braces (5) and a plurality of straight braces (6) are provided inside the cylinder (1), each of the cross braces (5) being composed of a first rod body (51) and a second rod body (52) connected vertically, the first rod body (51) and the straight brace (6) being arranged along the same radial direction of the cylinder (1); a lifting ear seat (7) is provided on the outer side wall of the cylinder (1) facing the rod end on the same side of the first rod body (51) and the straight brace (6), and a lifting ear seat (7) is also provided on the outer side wall of the cylinder (1) facing the rod end on the same side of the second rod body (52), and each of the lifting ear seats (7) is provided with a lifting ear hole (71).

2. The steel buoy for underwater submerged pipe according to claim 1, characterized in that: There are two cross braces (5) and two straight braces (6), which are arranged at intervals along the axial direction of the cylinder (1).

3. The steel buoy for underwater submerged pipe according to claim 2, characterized in that: The distance between each cross brace (5) and the nearest end plate (2) is L / 4, and the allowable deviation value is not greater than a, wherein L is the axial length of the cylinder (1).

4. A steel buoy for underwater submerged pipes according to claim 2 or 3, characterized in that: The distance between each of the I-shaped support rods (6) and the nearest end plate (2) is L / 6, and the allowable deviation value is not greater than b, wherein L is the axial length of the cylinder (1).

5. The steel buoy for underwater submerged pipe according to claim 1, characterized in that: The second rod body (52) is arranged along the radial direction of the cylinder body (1).

6. The steel buoy for underwater submerged pipe according to claim 1, characterized in that: Ribs (21) are arranged on the outer side of the end plate (2).

7. The steel buoy for underwater submerged pipe according to claim 6, characterized in that: The ribs (21) are made of hot-rolled equilateral angle steel and are arranged at intervals in the horizontal and vertical directions.

8. The steel buoy for underwater submerged pipe according to claim 1, characterized in that: The four rod ends of each cross support rod (5) and the two rod ends of each straight support rod (6) are welded and fixed on the inner side wall of the cylinder (1).

9. The steel buoy for underwater submerged pipe according to claim 1, characterized in that: The first rod body (51), the second rod body (52) and the I-shaped support rod (6) are all made of I-shaped steel, and a fixed rib plate (61) is provided at the fixed connection between the end of each rod and the inner wall of the cylinder (1).

10. A steel buoy for underwater submerged pipes according to claim 1 or 9, characterized in that: Four reinforcing ribs (53) are arranged at the fixed connection in the middle of the cross brace (5).

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