A tool for installing large expanded bent washers

Abstract

The utility model relates to a kind of tool for large-scale expansion bend gasket installation, belong to expansion bend offshore installation technical field, including flange gasket, hoisting tool is equipped on flange gasket outer diameter surface, hoisting tool includes locking buckle, several ordinary buckles that are evenly distributed around flange gasket and the strap connection system for connecting locking buckle and ordinary buckle connection, the locking buckle includes the top buckle of symmetrical arrangement, top buckle is located at the top of flange gasket, the strap connection system two free ends are respectively fixedly connected with the top buckle of symmetrical arrangement, middle is penetrated in ordinary buckle, the strap connection system two free ends are extended to form lifting point upwards, by ordinary buckle, top buckle combines strap connection system, can ensure that flange gasket and pipeline system realize accurate alignment, significantly improve installation precision;Realize fast, safe and accurate installation, solve the problem that flange gasket is easy to collide in installation process, diver is easy to be injured.

Description

Technical Field

[0001] This utility model relates to a tooling for installing large expansion bend washers, belonging to the field of expansion bend marine installation technology. Background Technology

[0002] Gaskets are critical components connecting expansion bends to piping systems, and their installation accuracy directly affects the pipeline's sealing and safety. Currently, in marine engineering, subsea pipelines are typically connected using flanges with octagonal steel ring seals, and with increasing demand and technological advancements, flange sizes are becoming increasingly larger. During underwater expansion bend installation, after assembling the expansion bend flange and the flat pipe flange, the gasket needs to be placed in the flange groove, and then the flange is pre-tightened. The traditional method for placing gaskets is as follows: (1) Before lowering the expansion bend into the water, clean the flange face and gasket groove, use grease to stick the gasket into the flange groove, and then lower the expansion bend to connect the flange. This method carries the risk of collision with the gasket during the connection process, which may damage the gasket and cause it to fall off.

[0003] (2) The underwater installation of the expansion bend mainly relies on manual operation by divers. Divers use a flexible traction rope to lower the washer to the vicinity of the washer groove, adjust the height of the rope to position the washer in the washer groove, and use a diving knife to squeeze the washer into the washer groove. This method increases the difficulty of underwater operation, and manual operation makes it difficult to ensure installation accuracy, and even poses a high safety hazard, and is inefficient.

[0004] Therefore, there is an urgent need for an installation tool that can improve installation accuracy, efficiency and safety, and is also suitable for large-diameter octagonal washers. Utility Model Content

[0005] This utility model addresses the shortcomings of the existing technology by providing a tooling for installing large expansion bend washers. The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A fixture for installing large expansion bend washers includes a flange washer. A lifting fixture is provided on the outer diameter surface of the flange washer. The lifting fixture includes locking clips, several ordinary clips evenly distributed around the flange washer, and a strap connection system for connecting the locking clips and the ordinary clips. The locking clips include symmetrically arranged top clips located at the top of the flange washer. The two free ends of the strap connection system are respectively fixedly connected to the symmetrically arranged top clips, and the middle part passes through the ordinary clips. The two free ends of the strap connection system extend upwards to form lifting points.

[0006] Furthermore, the ordinary buckle includes a trapezoidal groove that engages with the flange gasket, and an integrally formed U-shaped plate is provided on the trapezoidal groove. A through hole for the strap connection system to pass through is formed between the U-shaped plate and the trapezoidal groove, and a number of threaded holes are provided on the top surface of the U-shaped plate.

[0007] Furthermore, the number of wire holes is four.

[0008] Furthermore, the flange gasket has an octagonal cross-section, and the trapezoidal groove matches the outer diameter surface of the flange gasket.

[0009] Furthermore, compared to ordinary buckles, the top buckle is also provided with a vertical nut and a straight groove on the top surface of the U-shaped plate. The vertical nut is used to fix the symmetrically arranged top buckles.

[0010] Furthermore, the vertical nut is located away from the symmetrical adjacent end of the top buckle, and the straight groove is located close to the symmetrical adjacent end of the top buckle.

[0011] Furthermore, the number of vertical nuts is at least two.

[0012] Furthermore, the symmetrically arranged vertical nuts are connected by bolts.

[0013] Furthermore, the tape connection system is a high-strength tape.

[0014] Furthermore, both the ordinary buckle and the top buckle are made of corrosion-resistant materials.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This application uses a combination of ordinary clips, top clips, and strap connection system to ensure precise alignment between the flange gasket and the piping system, significantly improving installation accuracy. It enables rapid, safe, and accurate installation of large expansion bend flange gaskets even in low underwater visibility conditions, effectively improving installation efficiency and solving the problems of flange gaskets being easily collided and divers being easily injured during installation. 2. The tooling of this application is reusable, which reduces the cost of installation per unit, and its strong adaptability can well cope with complex underwater installation environments.

[0016] 3. The present invention provides a snap-on tooling for underwater installation of octagonal washers, which solves the problems of low installation accuracy, high cost and high risk in the prior art, reduces the difficulty of underwater operations and improves the efficiency and safety of underwater operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a top view of the structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the ordinary snap-fit ​​structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the top snap-fit ​​structure of this utility model.

[0021] Figure 5 for Figure 1 Enlarged view of A in the middle.

[0022] In the diagram, 1. Standard buckle; 2. Top buckle; 3. Strap connection system; 4. Flange gasket; 5. Bolt; 11. U-shaped plate; 12. Trapezoidal groove; 13. Through hole; 14. Threaded hole; 21. Vertical nut; 22. Straight groove. Detailed Implementation

[0023] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0024] like Figures 1-5 As shown, a tooling for installing large expansion bend washers includes a flange washer 4. A lifting tooling is provided on the outer diameter surface of the flange washer 4. The lifting tooling includes locking clips, several ordinary clips 1 evenly distributed around the flange washer 4, and a strap connecting system 3 for connecting the locking clips and the ordinary clips 1. The locking clips include symmetrically arranged top clips 2 located at the top of the flange washer 4. The two free ends of the strap connecting system 3 are fixedly connected to the symmetrically arranged top clips 2, and the middle part passes through the ordinary clips 1. The two free ends of the strap connecting system 3 extend upwards to form lifting points. This invention provides a clip-and-belt tooling for underwater installation of octagonal washers, solving the problems of low installation accuracy, high cost, and high risk in existing technologies, reducing the difficulty of underwater operations, and improving the efficiency and safety of underwater operations.

[0025] The ordinary snap fastener 1 includes a trapezoidal slot 12 that engages with the flange gasket 4. An integrally formed U-shaped plate 11 is provided on the trapezoidal slot 12. A through hole 13 for the tape connection system 3 to pass through is formed between the U-shaped plate 11 and the trapezoidal slot 12. Several threaded holes 14 are provided on the top surface of the U-shaped plate 11. Considering the characteristics of large-diameter expansion bend flange gaskets with an octagonal cross-section, the size and shape of the trapezoidal slot 12 are precisely designed to ensure a close fit between the trapezoidal slot 12 and the flange gasket 4.

[0026] The number of threaded holes 14 is four. The ordinary clip 1 and the top clip 2 are fixed to the edge of the flange gasket 4 by means of a top screw to ensure a firm connection.

[0027] The flange gasket 4 has an octagonal cross-section, and the trapezoidal groove 12 matches the outer diameter surface of the flange gasket 4. The trapezoidal groove 12, whose shape precisely matches the octagonal cross-section of the gasket, is used to secure the edge of the gasket.

[0028] Compared to the ordinary buckle 1, the top buckle 2 is also provided with a vertical nut 21 and a straight groove 22 on the top surface of the U-shaped plate 11. The vertical nut 21 is used to fix the symmetrically arranged top buckles 2.

[0029] The vertical nut 21 is located away from the symmetrical adjacent end of the top buckle 2, and the straight groove 22 is located close to the symmetrical adjacent end of the top buckle 2.

[0030] The number of vertical nuts 21 is at least two.

[0031] The symmetrically arranged vertical nuts 21 are connected by bolts 5. By tightening the vertical nuts 21 on the symmetrically arranged top clips 2 with bolts 5, the flange gaskets 4 are secured.

[0032] The strap connection system 3 is a high-strength strap. The high-strength strap is made of high-strength nylon material. It passes through the through hole 13 of the ordinary buckle 1. One free end of the high-strength strap passes through the through hole 13 and then wraps around to the upper end of the top buckle 2. It then passes through the straight groove 22 of the top buckle 2 from top to bottom and then passes through the through hole 13 again in the opposite direction. That is, one free end of the high-strength strap enters from the inlet end of the through hole 13, wraps around to the upper end of the top buckle 2 through the outlet end of the through hole 13, and then enters the through hole 13 through the straight groove 22 and exits from the inlet end of the through hole 13. The other end of the high-strength strap is the same. The two free ends of the high-strength strap extend upward to form lifting points. Connecting rings for connecting the two free ends of the high-strength strap can be set at the lifting points to facilitate connection with the lifting equipment and ensure the smooth progress of the lifting process.

[0033] Both the standard buckle 1 and the top buckle 2 are made of corrosion-resistant materials, such as stainless steel or corrosion-resistant alloys.

[0034] During use, the number of ordinary clips 1 is adjusted according to the diameter of the flange gasket 4 to accommodate flange gaskets 4 of different sizes, thus maximizing the versatility of the tooling. The top clips 2 are located at both ends of the strap connection system 3. Starting from the top of the flange gasket 4, the ordinary clips 1 with the strap connection system 3 are fixed to the flange gasket 4 with top screws. All the ordinary clips 1 are wrapped around and fixed to the flange gasket 4 at one time. The two free ends of the strap connection system 3 pass through the through holes 13 of the symmetrically arranged top clips 2 and then wrap around to the top of the top clips 2. They then pass through the straight groove 22 of the top clips 2 from top to bottom and then pass back through the through holes 13, and are then fixed with top screws. The top clips 2 are fixed to the top of the flange gasket 4. The strap connection system 3 connects the ordinary clips 1 and the top clips 2 to form a complete structure around the flange gasket 4. After fixing, the two free ends of the strap connection system 3 form lifting points facing upwards. The symmetrically arranged vertical nuts 21 are locked and fixed with bolts 5. The flange gasket 4 is a large expansion bend flange gasket with an octagonal cross-section. Tightening the bolts 5 ensures that the trapezoidal grooves 12 of the ordinary clip 1 and the top clip 2 are tightly fitted with the flange gasket 4. The lifting equipment is connected through the lifting point formed on the top clip 2 to place the flange gasket 4 in the designated underwater position, which protects the flange gasket 4 and improves the installation efficiency.

[0035] This application, through the combination of ordinary clip 1, top clip 2, and strap connection system 3, ensures precise alignment between the flange gasket 4 and the piping system, significantly improving installation accuracy. It enables rapid, safe, and accurate installation of large expansion bend flange gaskets even in low underwater visibility conditions, effectively improving installation efficiency and solving the problems of easy collision of the flange gasket 4 and easy injury to divers during installation. The tooling of this application is reusable, reducing the cost of a single installation. Its strong adaptability can well cope with complex underwater installation environments, and it is particularly suitable for the installation of large-diameter gaskets with octagonal cross-sections.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tooling for installing large expansion bend washers, comprising a flange washer (4), characterized in that: The outer diameter surface of the flange gasket (4) is provided with a lifting fixture, which includes a locking buckle, several ordinary buckles (1) evenly distributed around the flange gasket (4), and a strap connection system (3) for connecting the locking buckle and the ordinary buckles (1). The locking buckle includes a top buckle (2) symmetrically arranged, which is located at the top of the flange gasket (4). The two free ends of the strap connection system (3) are fixedly connected to the symmetrically arranged top buckles (2), and the middle part passes through the ordinary buckle (1). The two free ends of the strap connection system (3) extend upward to form a lifting point.

2. The tooling for installing large expansion bend washers according to claim 1, characterized in that: The ordinary buckle (1) includes a trapezoidal groove (12) that engages with the flange gasket (4). The trapezoidal groove (12) is provided with an integrally formed U-shaped plate (11). A through hole (13) for the strap connection system (3) to pass through is formed between the U-shaped plate (11) and the trapezoidal groove (12). The top surface of the U-shaped plate (11) is provided with a plurality of threaded holes (14).

3. The tooling for installing large expansion bend washers according to claim 2, characterized in that: The number of the wire holes (14) is four.

4. The tooling for installing large expansion bend washers according to claim 2, characterized in that: The flange gasket (4) has an octagonal cross section, and the trapezoidal groove (12) matches the outer diameter surface of the flange gasket (4).

5. The tooling for installing large expansion bend washers according to claim 2, characterized in that: Compared to the ordinary buckle (1), the top buckle (2) is also provided with a vertical nut (21) and a straight groove (22) on the top surface of the U-shaped plate (11). The vertical nut (21) is used to fix the symmetrically arranged top buckles (2).

6. The tooling for installing large expansion bend washers according to claim 5, characterized in that: The vertical nut (21) is symmetrically adjacent to the top buckle (2) away from the top buckle (2), and the straight slot (22) is symmetrically adjacent to the top buckle (2).

7. The tooling for installing large expansion bend washers according to claim 5, characterized in that: The number of the vertical nuts (21) is at least two.

8. The tooling for installing large expansion bend washers according to claim 5, characterized in that: The symmetrically arranged vertical nuts (21) are connected by bolts (5).

9. The tooling for installing large expansion bend washers according to claim 1, characterized in that: The tape connection system (3) is a high-strength tape.

10. The tooling for installing large expansion bend washers according to claim 1, characterized in that: Both the ordinary buckle (1) and the top buckle (2) are made of corrosion-resistant materials.

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