A one-way non-return device with spring-loaded hose recovery

Abstract

The present invention discloses a one-way non-return device with a spring-type hose recovery, comprising: a main board, a hose passage hole is provided at the center of the main board surface; a fixed plate, a plurality of the fixed plates are fixedly connected to the edge ends of the hose passage hole of the main board, and the fixed plates are evenly arranged in a circle; a sawtooth main board, the bottom end of the sawtooth main board is connected to the fixed plate through a rotating shaft, and the sawtooth main board is installed in a corresponding number to the fixed plate; a spring, one end of the spring is fixedly connected to the top of the sawtooth main board, the other end of the spring is fixedly connected to the main board surface, and the spring is installed in a corresponding number to the sawtooth main board; sawtooth, a plurality of the sawtooth are fixedly connected to the side ends of the sawtooth main board near the hose passage hole, and the sawtooth is installed obliquely; a support leg, the support leg is fixedly connected to the bottom end of the main board. The present invention can be repeatedly used, has a simple structure, and is safe and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of offshore petroleum engineering, and in particular to a one-way non-return device with a spring-type hose recovery. Background Art

[0002] In offshore oil development projects, when the service life of the hose expires, the hose needs to be recovered. One way to recover the hose is to use a tensioner as the main equipment, "pull" the hose from underwater onto the ship, and then cut it in sections for recovery. Since the hose is in an open state after the first section of the towing head is cut off, it often contains oil and sometimes harmful substances such as mercury. If it falls into the seawater at this time, it will cause seawater pollution, with serious consequences. Therefore, it is necessary to ensure that the recovery process is foolproof. When using a tensioner for recovery, if there is only one tensioner, or the force of the recovery hose is close to the working limit of the tensioner, and there is no backup device, when the tensioner fails or an accident occurs during the recovery process, the hose will retreat in the opposite direction, so a one-way check device for hose recovery is urgently needed. Summary of the invention

[0003] The object of the present invention is to provide a spring-type hose recovery one-way check device as a backup device for preventing the hose from retreating when a tensioner fails.

[0004] In order to achieve the purpose of the present invention, the present invention provides a spring-type hose recovery one-way check device, comprising: a main board, a hose passage hole is opened at the center of the main board surface; a fixed plate, a plurality of the fixed plates are fixedly connected to the edge ends of the hose passage hole of the main board, and the fixed plates are evenly arranged in a circle; a serrated main board, the bottom end of the serrated main board is connected to the fixed plate through a rotating shaft, and the serrated main board and the fixed plate are installed in a corresponding number; a spring, one end of the spring is fixedly connected to the top of the serrated main board, and the other end of the spring is fixedly connected to the main board surface, and the spring and the serrated main board are installed in a corresponding number; a sawtooth, a plurality of the sawtooths are fixedly connected to the side ends of the serrated main board close to the hose passage hole, and the sawtooths are installed at an angle; a support leg, the support leg is fixedly connected to the bottom end of the main board.

[0005] As a preferred technical solution of the present invention, the main board includes an upper main board and a lower main board, and the upper main board and the lower main board are fixedly connected by connecting bolts.

[0006] As a preferred technical solution of the present invention, a spring fixing plate is provided at the connection between the spring and the sawtooth main board, one end of the spring is detachably connected to the spring fixing plate, and the other end of the spring is fixedly connected to the main board surface.

[0007] As a preferred technical solution of the present invention, the spring fixing plate and the sawtooth main board are detachably connected.

[0008] As a preferred technical solution of the present invention, the thickness of the spring fixing plate is optional.

[0009] As a preferred technical solution of the present invention, a plurality of the saw teeth are arranged in parallel, and the saw teeth have the same size, and the direction of the saw teeth is away from the mainboard.

[0010] As a preferred technical solution of the present invention, the size of the hose travel hole is adapted to the size of the hose to be recovered, and the travel direction of the hose to be recovered is the same as the inclination direction of the saw teeth.

[0011] Compared with the prior art, the present invention provides a one-way non-return device for recovering a hose with a spring, which has the following beneficial effects:

[0012] The present invention is installed on a device where a hose needs to be recovered in one direction, which can prevent the hose from moving backward in an unexpected situation, plays a one-way check, and can be used repeatedly. It has a simple structure, is safe and reliable, and all manufacturing work is done on land. Only installation is required at sea, which saves the workload at sea. Under normal operating conditions, the device does not affect construction. Once the tensioner fails, the device starts quickly to prevent the hose from falling into the sea. The present invention is a purely mechanical device. Compared with electrically or hydraulically driven devices, it does not have potential risks such as power outages. The detachable connection of the spring fixing plate makes it easy to remove the hose stuck in the saw teeth. When the hose is stuck in the saw teeth and needs to be removed, it is only necessary to disconnect the connection between the spring fixing plate and the sawtooth main board. The spring constraint is released, and the sawtooth main board is not stressed. The hose can be easily separated from the device. For hoses of different sizes, spring fixing plates of different thicknesses can be flexibly replaced to adjust the force on the spring. When the hose size is small, a spring fixing plate with a larger thickness can be selected to increase the force on the spring; when the hose size is large, a spring fixing plate with a smaller thickness can be selected to reduce the force on the spring, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention;

[0014] Figure 2 is a side view of the present invention;

[0015] Figure 3 It is a front view of the present invention.

[0016] 1 is the main board, 2 is the fixing plate, 3 is the sawtooth main board, 4 is the spring, 5 is the sawtooth, 6 is the supporting leg, 7 is the rotating shaft, 8 is the connecting bolt, and 9 is the spring fixing plate. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 3 The embodiment of the present invention provides a spring-type hose recovery one-way check device, comprising: a main board 1, wherein a hose passage hole is opened at the center of the main board 1; a fixed plate 2, wherein a plurality of the fixed plates 2 are fixedly connected to the edge end of the hose passage hole of the main board 1, and the fixed plates 2 are evenly arranged in a circle; a sawtooth main board 3, wherein the bottom end of the sawtooth main board 3 is connected to the fixed plate 2 through a rotating shaft 7, and the sawtooth main board 3 is installed in a corresponding number to the fixed plate 2; a spring 4, wherein one end of the spring 4 is fixedly connected to the top of the sawtooth main board 3, and the other end of the spring 4 is fixedly connected to the main board 1, and the spring 4 is installed in a corresponding number to the sawtooth main board 3; sawtooth 5, wherein a plurality of the sawtooth 5 are fixedly connected to the side end of the sawtooth main board 3 close to the hose passage hole, and the sawtooth 5 is installed obliquely; a support leg 6, wherein the support leg 6 is fixedly connected to the bottom end of the main board 1.

[0019] In one embodiment of the present invention, the main board 1 includes an upper main board and a lower main board, and the upper main board and the lower main board are fixedly connected by connecting bolts 8 .

[0020] In one embodiment of the present invention, a spring fixing plate 9 is provided at the connection between the spring 4 and the sawtooth main board 3, one end of the spring 4 is detachably connected to the spring fixing plate 9, and the other end of the spring 4 is fixedly connected to the board surface of the main board 1.

[0021] In one embodiment of the present invention, the spring fixing plate 9 and the serrated main plate 3 are detachably connected.

[0022] In one embodiment of the present invention, the thickness of the spring fixing plate 9 is optional.

[0023] In one embodiment of the present invention, a plurality of the saw teeth 5 are arranged in parallel, and the saw teeth 5 have the same size, and the saw teeth 5 are oriented away from the mainboard 1 .

[0024] In one embodiment of the present invention, the size of the hose travel hole is adapted to the size of the hose to be recovered, and the travel direction of the hose to be recovered is the same as the inclination direction of the saw teeth 5 .

[0025] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A one-way non-return device for recovering a hose with a spring, characterized in that: include: A main board (1), wherein a hose passage hole is provided at the center of the main board (1); A fixing plate (2), wherein a plurality of the fixing plates (2) are fixedly connected to the edge of the hose passage hole of the main plate (1), and the fixing plates (2) are evenly arranged in a circumference; a sawtooth main plate (3), wherein the bottom end of the sawtooth main plate (3) is connected to the fixing plate (2) via a rotating shaft (7), and the sawtooth main plate (3) and the fixing plates (2) are installed in corresponding numbers; a spring (4), wherein one end of the spring (4) is fixedly connected to the top of the sawtooth main plate (3), and the other end of the spring (4) is fixedly connected to the plate surface of the main plate (1), and the spring (4) and the sawtooth main plate (3) are installed in corresponding numbers. The sawtooth (5) is installed in a certain amount; a plurality of the sawtooths (5) are fixedly connected to the side end of the sawtooth main board (3) near the hose passage hole, and the sawtooth (5) is installed obliquely; a support leg (6), the support leg (6) is fixedly connected to the bottom end of the main board (1), a spring fixing plate (9) is provided at the connection between the spring (4) and the sawtooth main board (3), one end of the spring (4) is detachably connected to the spring fixing plate (9), and the other end of the spring (4) is fixedly connected to the plate surface of the main board (1), and the spring fixing plate (9) and the sawtooth main board (3) are detachably connected.

2. A spring-loaded hose recovery one-way check device according to claim 1, characterized in that: The main board (1) comprises an upper main board and a lower main board, and the upper main board and the lower main board are fixedly connected via connecting bolts (8).

3. The one-way non-return device for recovering a hose with a spring according to claim 1, characterized in that: The thickness of the spring fixing plate (9) can be selected.

4. The one-way non-return device for recovering a hose with a spring as claimed in claim 1, characterized in that: A plurality of the saw teeth (5) are arranged in parallel, and the saw teeth (5) have the same size, and the direction of the saw teeth (5) is away from the main board (1).

5. The one-way non-return device for recovering a hose with a spring according to claim 1, characterized in that: The size of the hose travel hole is adapted to the size of the hose to be recovered, and the travel direction of the hose to be recovered is the same as the inclination direction of the saw teeth (5).

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