A passive packer with a protective structure

Abstract

The utility model discloses a passive packer with a protective structure, including a packer body, a fixing assembly fixedly assembled between the packer body and the sleeve, a guide protection steel sheet fixedly assembled on the packer body through the fixing assembly, and an auxiliary support mechanism assembled in the packer body. By arranging the guide protection steel sheet, the surface of the packer body can be protected during the process of inserting the sleeve into the steel pile, avoiding the contact between the surface of the packer body and the steel pile shear key in the steel pile, effectively reducing the damage to the surface of the packer body during the pile insertion process, and reducing the risk of sealing failure of the packer body during the subsequent grouting process.

Description

Technical Field

[0001] The utility model relates to the technical field of passive packers, in particular to a passive packer with a protection structure. Background Art

[0002] During the construction of offshore platforms, steel piles are needed to support and fix the offshore platforms. In order to ensure the stability of the offshore jacket, the steel piles need to be inserted into the seabed and cement mortar is poured between the steel piles and the sleeves to strengthen the stability of the jacket on the seabed. A packer is provided between the sleeve and the steel piles to prevent the backflow of seabed mud and sand. A steel pile shear key is provided on the side wall of the steel pile connected to the sleeve. Most of the existing packers are made of rubber materials. During the process of inserting the sleeve into the steel pile, the surface of the packer made of rubber material will contact the steel pile shear key in the steel pile and produce relative sliding, thereby damaging the surface of the packer. The subsequent grouting process is likely to increase the risk of packer sealing failure. To this end, we propose a passive packer with a protective structure. Utility Model Content

[0003] The utility model aims to provide a passive packer with a protective structure to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a passive packer with a protective structure, comprising a packer body, a fixing assembly fixedly assembled between the packer body and the sleeve, the packer body being fixedly assembled with a guide protective steel sheet through the fixing assembly, and an auxiliary support mechanism being assembled in the packer body.

[0005] Preferably, the fixing assembly includes a fixing bolt, a fixing nut and a fixing pressure plate, the fixing pressure plate is fixedly assembled on the side wall of the packer body, the guide protection steel sheet is fixedly assembled between the packer body and the fixing pressure plate, and the fixing bolt passes through the fixing pressure plate, the guide protection steel sheet, the packer body and the sleeve in sequence and is fixedly connected to the fixing nut.

[0006] Preferably, the guide protection steel sheet is adapted to the shape of the packer body.

[0007] Preferably, the auxiliary support mechanism comprises an embedded support steel ring and an external support steel ring, the embedded support steel ring is embedded and installed in the packer body, and the external support steel ring is fixedly assembled on the outer surface of the packer body.

[0008] Preferably, a compression spring is embedded and installed at the end of the packer body.

[0009] Compared with the prior art, the utility model has the following beneficial effects: a passive packer with a protective structure, firstly, a guide protection steel sheet whose shape and size are matched with the packer body is assembled at the bottom of the packer body through a fixing assembly, and the guide protection steel sheet can be provided to protect the surface of the packer body during the process of inserting the sleeve into the steel pile, thereby avoiding the contact between the surface of the packer body and the steel pile shear key in the steel pile, effectively reducing the damage to the surface of the packer body during the pile insertion process, and reducing the risk of sealing failure of the packer body during the subsequent grouting process;

[0010] At the same time, this product is also equipped with an auxiliary support mechanism to strengthen the overall strength of the packer body. The built-in support steel ring and the external support steel ring can enhance the overall strength of the packer body. At the same time, when the packer body is wrinkled due to excessive offset of the steel pile during the pile insertion process, the position of the support steel ring can still be sealed, further reducing the risk of sealing failure of the packer body during the grouting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 for Figure 1 Detail of point a in the figure.

[0013] In the figure: 1. Packer body; 2. Fixing assembly; 21. Fixing bolt; 22. Fixing nut; 23. Fixing pressure plate; 3. Guide protection steel sheet; 4. Auxiliary support mechanism; 41. Embedded support steel ring; 42. External support steel ring; 5. Compression spring. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0015] See also Figure 1 and Figure 2 , the utility model provides a technical solution: a passive packer with a protective structure, comprising a packer body 1, the packer body 1 is connected and fixed to a sleeve through a fixing assembly 2;

[0016] The fixing assembly 2 includes a fixing bolt 21, a fixing nut 22 and a fixing pressure plate 23. The fixing pressure plate 23 is assembled on the side wall of the packer body 1. The fixing bolt 21 passes through the fixing pressure plate 23, the packer body 1 and the sleeve and is fixedly connected with the fixing nut 22. The packer body 1 and the sleeve are connected and fixed by the mutual cooperation between the fixing bolt 21, the fixing nut 22 and the fixing pressure plate 23.

[0017] A guide protection steel sheet 3 is arranged between the fixing bolt 21 and the fixing pressure plate 23. The shape of the guide protection steel sheet 3 matches the shape of the packer body 1. By setting the guide protection steel sheet 3, the packer body 1 is prevented from directly contacting the steel pile shear key on the inner wall of the steel pile during the process of inserting the sleeve into the steel pile, and the sealing surface of the packer body 1 is fully protected. At the same time, the guide protection steel sheet 3 is set to avoid relative sliding between the packer body 1 and the steel pile shear key, so that the sealing position between the packer body 1 and the steel pile is more stable.

[0018] At the same time, by arranging the guide protection steel sheet 3 on the side wall of the packer body 1, the load capacity of the packer body 1 during grouting can be increased, and the risk of sealing failure of the packer body 1 during the grouting process can be reduced.

[0019] An auxiliary support mechanism 4 is installed in the packer body 1. The auxiliary support mechanism 4 is provided to further enhance the stability of the packer body 1 during use, and can effectively solve the wrinkle problem of the packer body 1 during the insertion of the sleeve into the steel pile.

[0020] The auxiliary support mechanism 4 includes an embedded support steel ring 41 and an external support steel ring 42. The embedded support steel ring 41 is embedded and installed in the packer body 1, and the external support steel ring 42 is fixedly connected to the outer wall of the packer body 1. The embedded support steel ring 41 and the external support steel ring 42 are located in the middle position of the packer body 1. Through the mutual cooperation of the embedded support steel ring 41 and the external support steel ring 42, the overall strength of the packer body 1 can be enhanced. At the same time, when the packer body 1 is wrinkled due to the excessive offset stroke of the steel pile during the pile insertion process, the packer body 1 can still be supported by the embedded support steel ring 41 and the external support steel ring 42, so that the packer body 1 can remain sealed.

[0021] A compression spring 5 is embedded in the end of the packer body 1 , and the compression spring 5 provides additional tensioning force at the maximum gap of the packer body 1 when the packer body 1 is at extreme bias.

Claims

1. A passive packer with a protective structure, characterized in that: The invention comprises a packer body (1), a fixing assembly (2) is fixedly assembled between the packer body (1) and the sleeve, a guide protection steel sheet (3) is fixedly assembled on the packer body (1) through the fixing assembly (2), and an auxiliary support mechanism (4) is assembled inside the packer body (1).

2. A passive packer with a protective structure according to claim 1, characterized in that: The fixing assembly (2) comprises a fixing bolt (21), a fixing nut (22) and a fixing pressure plate (23); the fixing pressure plate (23) is fixedly assembled on the side wall of the packer body (1); the guide protection steel sheet (3) is fixedly assembled between the packer body (1) and the fixing pressure plate (23); the fixing bolt (21) passes through the fixing pressure plate (23), the guide protection steel sheet (3), the packer body (1) and the sleeve in sequence and is fixedly connected to the fixing nut (22).

3. The passive packer with a protective structure according to claim 1, characterized in that: The guide protection steel sheet (3) is adapted to the shape of the packer body (1).

4. The passive packer with a protective structure according to claim 1, characterized in that: The auxiliary support mechanism (4) comprises an embedded support steel ring (41) and an external support steel ring (42), wherein the embedded support steel ring (41) is embedded and installed in the packer body (1), and the external support steel ring (42) is fixedly mounted on the outer surface of the packer body (1).

5. The passive packer with a protective structure according to claim 1, characterized in that: A compression spring (5) is embedded and installed at the end of the packer body (1).

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