Rubber floating body for steel pipe

Abstract

The utility model discloses a rubber floating body for a steel pipe. The floating body comprises a hollow main body formed by oppositely combining and splicing two same semicircular floating bodies, and each semicircular floating body comprises a semicircular cylinder body, an inner reinforcing layer covering the semicircular cylinder body, a foam layer wrapping the inner reinforcing layer, an outer reinforcing layer wrapping the foam layer and an outer rubber layer covering the outer reinforcing layer from inside to outside in the diameter direction. A flange connecting plate integrally formed with the semicircular barrel is arranged on the connecting face of the two semicircular floating bodies, and the semicircular floating bodies are connected through the flange connecting plate. The device has the advantages that the device is formed by connecting the two semicircular floating bodies through the bolts, and has the characteristics of light weight and large buoyancy. The floating body is filled with the foam layer, it is ensured that the floating body has stable buoyancy in water, meanwhile, the installation and transportation processes are simplified, and the requirements of various construction environments are met.

Description

Technical Field

[0001] This utility model relates to a rubber float for use in water engineering pipelines, and more particularly to a rubber float for steel pipes. Background Technology

[0002] River and ocean dredging projects typically require corresponding dredging pipelines to transport silt, and most of these pipelines float on the water surface for ease of construction. The earliest pipelines used steel pontoons for support, but due to their poor impact resistance, wave resistance, and corrosion resistance, they have gradually been replaced by PE floats, steel pipe-insulated floats, and self-floating pipes. The superiority of self-floating pipes is widely recognized in the industry, but their high initial cost places a significant burden on users. PE floats have a cost advantage, but their wave and impact resistance are poor, making them prone to breakage and detachment, affecting the pipeline's buoyancy and reducing construction efficiency. While steel pipe-insulated floats are inexpensive, their replacement and installation are extremely inconvenient. Specifically, it requires cutting off the flange at one end of the steel pipe, inserting and securing the new float, and then welding the flange back in place. This construction method is feasible in a manufacturing plant, but it is extremely difficult to implement, and sometimes impossible, on a construction site where specialized equipment is lacking. Therefore, the development of a floating body that is resistant to wind and waves and impacts, low in cost, and easy to install has become an urgent need in the industry. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a rubber float for steel pipes with high resistance to wind and waves and impact, and a long service life.

[0004] To solve the above-mentioned technical problems, the rubber float for steel pipes of this utility model includes a hollow main body formed by splicing two identical semi-circular floats together. The semi-circular float includes, from the inside to the outside along the diameter direction, a semi-circular cylinder, an inner reinforcing layer covering the semi-circular cylinder, a foam layer wrapped around the inner reinforcing layer, an outer reinforcing layer wrapped around the foam layer, and an outer rubber layer covering the outer reinforcing layer. The connecting surface of the two semi-circular floats is provided with a flange connecting plate integrally formed with the semi-circular cylinder, and the semi-circular floats are connected by the flange connecting plate.

[0005] The inner side of the semi-circular cylinder and the flange connecting plate is provided with adhesive.

[0006] Both the top and outer rubber layers are made of vulcanized rubber.

[0007] Both the cylinder and the flange connecting plate are made of 4-8mm thick metal plate.

[0008] The cylinder and flange connecting plate have several reinforcing holes, and the reinforcing holes are filled with rubber.

[0009] The surfaces of the cylinder and flange connecting plate are coated with an adhesive to enhance adhesion.

[0010] The two flange connecting plates are connected by bolts located at the outer edge of the body.

[0011] The foam layer is composed of multiple layers of low-density ZVA closed-cell foam material bonded together.

[0012] Both the inner and outer reinforcing layers are composed of multiple layers of adhesive-coated nylon mesh fabric.

[0013] The main body has an overall shape that is cylindrical in the middle and frustum-shaped at both ends.

[0014] Advantages of this utility model:

[0015] (1) This rubber float is composed of two semi-circular floats connected by bolts, and has the characteristics of being lightweight and having high buoyancy. The float is filled with a foam layer to ensure that the float has stable buoyancy in the water, while simplifying the installation and transportation process and adapting to the needs of various construction environments.

[0016] (2) The semi-circular structure design makes the installation of the float more convenient. The number of floats can be adjusted by calculation according to the specifications and weight of the dredging steel pipe to meet the dredging operation needs of different scenarios and improve construction efficiency.

[0017] (3) The flange connecting plates on both sides of the semi-circular cylinder are connected by bolts to ensure the stability of the entire float installation. At the same time, the flange connecting plates and the inner surface of the semi-circular cylinder are covered with adhesive. Due to the high friction between the rubber and the steel pipe and the good resilience, the float can be better fixed to the installed steel pipe and prevent it from sliding on the steel pipe.

[0018] (4) Multiple reinforcing holes are provided on the cylinder and flange connecting plate, and the holes are filled with rubber material. This design integrates the surface rubber with the rubber of the outer reinforcing layer, enhancing the overall rigidity of the float. At the same time, by scientifically distributing the reinforcing holes, the self-weight of the float is effectively reduced, taking into account both the requirements of rigidity and lightweight.

[0019] (5) All metal surfaces of the float are covered with rubber to prevent metal from being exposed, thereby reducing the risk of corrosion of metal components due to long-term immersion in seawater. This significantly improves the corrosion resistance of the float, extends its service life, and makes it particularly suitable for marine and other complex aquatic environments.

[0020] (6) The float adopts a multi-layer composite material structure design, with the foam layer providing buoyancy, the inner and outer reinforcing layers providing structural support, and the outer and surface adhesive layers providing protection and fixation. All parts are tightly integrated to form an integrated structure. This design makes the float have high overall rigidity and excellent durability. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the rubber float for steel pipes according to this utility model;

[0022] Figure 2 This is an external view of the rubber float for steel pipes according to this utility model. Detailed Implementation

[0023] The rubber float for steel pipes of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] The rubber float for steel pipes comprises a hollow main body formed by splicing two identical semi-circular floats 1 together. The overall shape of the main body is cylindrical in the middle and truncated cone at both ends. Along the diameter direction, each semi-circular float 1 includes, from the inside out, a semi-circular cylinder 4, an inner reinforcing layer 5 covering the semi-circular cylinder 4, a foam layer 6 wrapped around the inner reinforcing layer 5, an outer reinforcing layer 7 wrapped around the foam layer 6, and an outer rubber layer 8 covering the outer reinforcing layer 7. The connecting surfaces of the two semi-circular floats 1 are provided with flange connecting plates 3 integrally formed with the semi-circular cylinder 4, and the semi-circular floats 1 are connected by the flange connecting plates 3. The two flange connecting plates 3 are connected by fasteners such as bolts located at the outer edge of the main body. The inner sides of the semi-circular cylinder 4 and the flange connecting plates 3 are provided with a surface adhesive 2. Both the surface adhesive 2 and the outer rubber layer 8 are made of vulcanized rubber, possessing excellent aging resistance and capable of long-term resistance to ultraviolet rays and salt. The foam layer 6 is composed of multiple layers of low-density ZVA closed-cell foam material, with special adhesives firmly bonding the layers together. The inner reinforcing layer 5 and the outer reinforcing layer 7 are both made of multiple layers of adhesive-coated nylon mesh fabric, which can better protect the foam. At the same time, the excellent tear resistance and impact resistance of the nylon mesh fabric make the float more resistant to wind and waves and accidental impacts. The semi-circular cylinder 4 and the flange connecting plate 3 are both made of 4-8mm thick metal plates. The semi-circular cylinder 4 and the flange connecting plate 3 have several reinforcing holes 9, which are filled with rubber. Through vulcanization, the rubber has good adhesion to each rubber layer, making the connection between the inner reinforcing layer 5 and the surface adhesive 2 on both sides of the semi-circular cylinder 4 more secure. The surface of the semi-circular cylinder 4 and the flange connecting plate 3 is coated with adhesive to enhance adhesion and increase the integrity of the float.

Claims

1. A rubber float for steel pipes, characterized in that: The device includes a hollow body formed by splicing two identical semi-circular floats (1). The semi-circular floats (1) include a semi-circular cylinder (4), an inner reinforcing layer (5) covering the semi-circular cylinder (4), a foam layer (6) wrapped around the inner reinforcing layer (5), an outer reinforcing layer (7) wrapped around the foam layer (6), and an outer adhesive layer (8) covering the outer reinforcing layer (7) from the inside out. The connecting surfaces of the two semi-circular floats (1) are provided with flange connecting plates (3) integrally formed with the semi-circular cylinder (4). The semi-circular floats (1) are connected to each other through the flange connecting plates (3).

2. The rubber float for steel pipes according to claim 1, characterized in that: The inner sides of the semi-circular cylinder (4) and the flange connecting plate (3) are provided with adhesive (2).

3. The rubber float for steel pipes according to claim 2, characterized in that: Both the surface adhesive (2) and the outer adhesive layer (8) are made of vulcanized rubber.

4. The rubber float for steel pipes according to claim 1, characterized in that: Both the cylinder (4) and the flange connecting plate (3) are made of 4-8mm thick metal plate.

5. The rubber float for steel pipes according to claim 1, characterized in that: The cylinder (4) and the flange connecting plate (3) have several reinforcing holes (9) and the reinforcing holes (9) are filled with rubber.

6. The rubber float for steel pipes according to claim 1, characterized in that: The surfaces of the cylinder (4) and the flange connecting plate (3) are coated with adhesive to enhance adhesion.

7. The rubber float for steel pipes according to claim 1, characterized in that: The two flange connecting plates (3) are connected by bolts located at the outer edge of the body.

8. The rubber float for steel pipes according to claim 1, characterized in that: The foam layer (6) is made of multiple layers of low-density ZVA closed-cell foam material bonded together.

9. The rubber float for steel pipes according to claim 1, characterized in that: Both the inner reinforcing layer (5) and the outer reinforcing layer (7) are composed of multiple layers of adhesive-coated nylon mesh fabric.

10. The rubber float for steel pipes according to claim 1, characterized in that: The main body has an overall shape that is cylindrical in the middle and frustum-shaped at both ends.

Images