Portable life raft installed on oil platform deck

Abstract

The invention belongs to the technical field of life rafts, and particularly relates to a portable life raft mounted on an oil platform deck. Comprising a first protective shell; the second protective shell is rotationally connected to the first protective shell; the symmetrically-distributed fixing seats are fixedly connected to the first protection shell, and a first connecting rod is rotationally and slidably connected between the symmetrically-distributed fixing seats; the connecting frame is connected between the symmetrically distributed fixing seats in a sliding manner, and the connecting frame is fixedly connected with multi-stage elastic telescopic rods which are symmetrically distributed; the second connecting rod is fixedly connected to the telescopic ends of the multi-stage elastic telescopic rods which are symmetrically distributed; and the winding piece is arranged on the first connecting rod in a winding mode, and the winding piece is used for winding the life raft. On the premise that the gravity center of the life raft is adjusted, unfolding and inflation of the life raft are distinguished, the life raft is inflated in the active unfolding process by means of the active unfolding mode of the life raft, and unfolding of the life raft is achieved no longer only through inflation expansion.

Description

Technical Field

[0001] The present invention relates to the technical field of life rafts, in particular to a portable life raft installed on a deck of an oil platform. Background Art

[0002] In offshore operating environments such as oil platforms, safety issues have always been the core of primary concern. Since oil platforms are usually located in open waters far from the coast, the operating environment is complex and high-risk. Once an emergency such as fire, explosion, equipment failure or natural disaster occurs, rapid evacuation and effective rescue of personnel are particularly important. In such emergencies, life-saving equipment is a key facility to ensure the safety of personnel. Its performance and ease of use directly affect the efficiency of emergency rescue.

[0003] However, most existing life rafts are of fixed or suspended design. When thrown into the sea in an emergency, the life raft is easily deployed in the opposite direction due to an improper deployment angle. This reverse deployment not only affects the normal use of the life raft, but also prolongs the time required for the inflation step, thereby delaying the rescue opportunity, reducing the escape efficiency, and posing a threat to the life safety of people in distress. Summary of the Invention

[0004] In order to solve the problems mentioned in the above background technology, the present invention provides a portable life raft installed on the deck of an oil platform.

[0005] The technical solution of the present invention is: a portable life raft installed on the deck of an oil platform, comprising: a first protective shell; a second protective shell rotatably connected to the first protective shell, and a first strap is commonly provided on the outer sides of the first protective shell and the second protective shell; symmetrically distributed fixing seats, all fixedly connected in the first protective shell, and a first connecting rod located in the first protective shell is rotatably and slidably connected between the symmetrically distributed fixing seats; a connecting frame, slidably connected between the symmetrically distributed fixing seats, the connecting frame is rotatably connected to the first connecting rod, and the connecting frame is fixedly connected with a symmetrically distributed multi-stage elastic telescopic rod; a second connecting rod is fixed to the telescopic end of the symmetrically distributed multi-stage elastic telescopic rod, and the second connecting rod is used to squeeze the second protective shell; a winding piece, wound around the first connecting rod and fixedly connected to the second connecting rod, and the winding piece is used to reel in the life raft.

[0006] More preferably, the symmetrically distributed multi-stage elastic telescopic rods are located on a side of the first protective shell away from a rotation position between the first protective shell and the second protective shell.

[0007] More preferably, the winding member is spiral-shaped.

[0008] More preferably, a fixed block is fixedly connected to one side of the first protective shell close to the second connecting rod, the fixed block is rotatably connected to a swing plate, the swing plate is used to limit the second connecting rod, and a first torsion spring is provided between the fixed block and the swing plate.

[0009] More preferably, the rotational positions of the fixed block and the swing plate are not located in the moving path of the second connecting rod.

[0010] More preferably, the fixed block and the swing plate are slidably connected to a limit plate, the limit plate is used to limit the swing plate, the second protective shell is slidably connected to a pull rope, the pull rope has a margin in the second protective shell, and the pull rope is used to drive the limit plate to move.

[0011] More preferably, a second binding belt is wound around the second connecting rod and the winding member. When the swing plate limits the second connecting rod, the second binding belt fixes the winding member to keep the winding member in a wound shape.

[0012] More preferably, the first connecting rod is provided with a threaded portion having the same number as the fixing seat, the threaded portion is threadedly connected to a limit frame which is slidably connected to the fixing seat, the limit frame is used to fix the first connecting rod on the symmetrically distributed fixing seat, and a spring is provided in the fixing seat to assist the connecting frame in popping out.

[0013] More preferably, it also includes several rotating parts, which are all rotatably connected to the winding part, and a second torsion spring is arranged between the rotating part and the winding part. The rotating part passes through the winding part and is fixedly connected to a support plate, and the support plate is used to support the winding part.

[0014] More preferably, the support plate is provided with an arc-shaped chamfer for facilitating the squeezing of the winding member.

[0015] The present invention has the following advantages: To solve the problems of the existing life rafts in emergency deployment, such as reverse deployment, prolonged inflation time, and reduced rescue efficiency due to improper angles, the present invention proposes the following improvement scheme: Adjust the center of gravity of the life raft: By installing the parts on the first protective shell, the center of gravity is shifted, so that when the life raft falls into the water and is not deployed, it can naturally float in the forward direction and avoid reverse deployment; Spiral storage method: The life raft is rolled into a spiral shape for easy storage and quick deployment, so that when it is deployed, it simulates the stretching method of a tape measure, giving priority to structural deployment; Distinguishing between deployment and inflation of a life raft: Compared with the traditional method of deploying a life raft in water by inflating it, the present invention deploys the life raft actively, so that the life raft is inflated during the active deployment process, and the deployment of the life raft is no longer solely dependent on inflation. This design reduces structural interference and inflation resistance, thereby shortening the deployment time of the life raft and improving inflation efficiency; Since the reel is located on the lower side of the life raft, after the life raft is released, this structure not only plays the role of storing and guiding the deployment, but also enhances the overall rigidity and center of gravity stability of the life raft, thereby improving the balance and anti-capsulation ability of the life raft on the water surface, and further ensuring the safety of people when boarding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention from another perspective; Figure 3 This is a schematic diagram of the three-dimensional structure of the components inside the first protective shell of the present invention; Figure 4 Schematic diagram of the three-dimensional structure of the first connecting rod and the winding member of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the second connecting rod and the second binding strap of the present invention; Figure 6 is a schematic three-dimensional structural diagram of the positional relationship between the first connecting rod and the connecting frame of the present invention; Figure 7 For the present invention Figure 6 A magnified view of point A; Figure 8 This is a sectional view of the three-dimensional structure of the fixing seat of the present invention; Figure 9 This is an exploded view of the three-dimensional structure of the fixed block, swing plate and limit plate of the present invention; Figure 10 It is a schematic diagram of the three-dimensional structure of the winding piece after unfolding.

[0017] Figure numerals: 1. first protective shell, 2. second protective shell, 3. first strap, 4. fixing seat, 5. first connecting rod, 6. connecting frame, 7. multi-stage elastic telescopic rod, 8. second connecting rod, 9. winding member, 10. fixing block, 11. swing plate, 12. limiting plate, 13. pull rope, 14. second strap, 15. threaded part, 16. limiting frame, 17. rotating member, 18. support plate. DETAILED DESCRIPTION

[0018] The technical solution is further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used herein to indicate directions refer only to the positions of the structures shown in the corresponding drawings. Serial numbers assigned to components herein, such as "first" and "second," are used solely to distinguish the components being described and do not convey any sequential or technical meaning.

[0019] In this device, the life raft is an existing inflatable life raft. Except for the changes in the reeling and releasing methods of the life raft, other mechanisms, such as the towing rope connecting the life raft and the inflation mechanism, can refer to the mechanisms in the existing life raft.

[0020] In order to solve the problem that the existing life rafts are prone to reverse deployment due to improper angles during emergency deployment, resulting in prolonged inflation time, affecting rescue efficiency and threatening personnel safety, the present invention first adjusts the center of gravity of the life raft so that the life raft floats in the positive direction when it falls into the water and is not deployed. In addition, the life raft can be deployed actively after emergency deployment instead of relying solely on inflation, thereby improving rescue efficiency while shortening the inflation time.

[0021] Example 1

[0022] A convenient life raft installed on the deck of an oil platform, please refer to Figures 1-10, including a first protective shell 1; a second protective shell 2 is rotatably connected to the first protective shell 1, and a first strap 3 is commonly provided on the outer sides of the first protective shell 1 and the second protective shell 2; symmetrically distributed fixing seats 4, all of which are fixed in the first protective shell 1, and a first connecting rod 5 located in the first protective shell 1 is rotatably and slidably connected between the symmetrically distributed fixing seats 4; a connecting frame 6, which is slidably connected between the symmetrically distributed fixing seats 4, and the connecting frame 6 is rotatably connected to the first connecting rod 5, and the connecting frame 6 is fixed with a symmetrically distributed multi-stage elastic telescopic rod 7; a second connecting rod 8, which is fixed to the telescopic end of the symmetrically distributed multi-stage elastic telescopic rod 7, and the second connecting rod 8 is used to squeeze the second protective shell 2; a winding member 9, which is wound around the first connecting rod 5 and fixed to the second connecting rod 8, and the winding member 9 is used to reel in the life raft, and the symmetrically distributed The multi-stage elastic telescopic rod 7 is located in the first protective shell 1 on the side away from the rotation position of the first protective shell 1 and the second protective shell 2, and is used to release the winding member 9 to the side away from the rotation position of the first protective shell 1 and the second protective shell 2 when released. The winding member 9 is spiral when winding, and the central axis of the first connecting rod 5 is located below the center line of the first protective shell 1 and the second protective shell 2. By installing the parts on the first protective shell 1, the effect of center of gravity offset is achieved, so that when the device as a whole is not unfolded in the water, the first protective shell 1 is naturally located at the bottom due to its heavy weight. A fixed block 10 is fixed to the side of the first protective shell 1 close to the second connecting rod 8, and the fixed block 10 is rotatably connected to a swing plate 11. The swing plate 11 is used to limit the second connecting rod 8, and a first torsion spring is arranged between the fixed block 10 and the swing plate 11.

[0023] In the above scheme, a torsion spring can be installed between the first protective shell 1 and the second protective shell 2 to quickly disengage the second protective shell 2 from the first protective shell 1, and the torsion provided by the torsion spring cannot overcome the force of the first strap 3 binding the first protective shell 1 and the second protective shell 2. Looking from top to bottom, the projection of the connecting frame 6 on the horizontal plane is U-shaped. When in use, the inner side of the winding member 9 is fixed to the lower side of the life raft (after unfolding). When the winding member 9 is not released, the telescopic end of the multi-stage elastic telescopic rod 7 is in a contracted state, and the life raft (not shown in the figure) is retracted through the winding member 9 in a manner simulating the winding of a tape measure, so as to facilitate the subsequent unfolding of the life raft and ensure the stability of the life raft during the subsequent unfolding process. Looking from right to left, the winding member 9 drives the first connecting rod 5 to rotate clockwise during the release process.

[0024] Please refer to Figure 3-Figure 6 and Figure 9The fixed block 10 and the swing plate 11 are slidably connected to the limit plate 12 together. The limit plate 12 is used to limit the swing plate 11. The second protective shell 2 is slidably connected with a pull rope 13. The pull rope 13 has a margin in the second protective shell 2. The pull rope 13 is used to drive the limit plate 12 to move. The rotation position of the fixed block 10 and the swing plate 11 is not located in the extension path of the telescopic end of the multi-stage elastic telescopic rod 7 and the movement path of the second connecting rod 8. In this way, the swing plate 11 will not affect the extension of the telescopic end of the multi-stage elastic telescopic rod 7 and the movement of the second connecting rod 8 after rotating along the fixed block 10.

[0025] In the above scheme, when the swing plate 11 contacts and limits the second connecting rod 8, the first torsion spring between the fixed block 10 and the swing plate 11 is in a force storage state, which is used to prevent the swing plate 11 from contacting and limiting the second connecting rod 8. When the swing plate 11 no longer contacts and limits the second connecting rod 8, the swing plate 11 rotates rapidly along the adjacent fixed block 10 by virtue of the reset of the first torsion spring.

[0026] Please refer to Figure 5-Figure 7 A second strap 14 is wound around the second connecting rod 8 and the winding piece 9. When the swing plate 11 limits the second connecting rod 8, the second strap 14 fixes the winding piece 9 to keep the winding piece 9 in a wound shape. The first connecting rod 5 is provided with a threaded portion 15 with the same number as the fixing seat 4. The threaded portion 15 is threadedly connected to a limiting frame 16 that is slidingly connected to the fixing seat 4. The limiting frame 16 is used to fix the first connecting rod 5 on the symmetrically distributed fixing seat 4. A spring is provided in the fixing seat 4 to assist the connecting frame 6 to pop out.

[0027] In the above scheme, there are two threaded parts 15, which are respectively distributed on the left and right sides of the first connecting rod 5. The threaded part 15 drives the limit frame 16 to move to the side away from the adjacent fixing seat 4 during the rotation of the first connecting rod 5, thereby gradually disengaging from the adjacent fixing seat 4. When the limit frame 16 is no longer in contact with the fixing seat 4, the connecting frame 6 moves upward under the action of the adjacent spring, so that the connecting frame 6 and the parts thereon actively disengage from the first protective shell 1.

[0028] Working principle: Before using this device, connect the pull rope 13 to the existing towing rope to complete the preparation work before using this device (the connection method is: one end of the existing towing rope is tied to the oil platform, and the other end is in a herringbone shape. One end of the herringbone shape is connected to the pull rope 13, and the other end is connected to the existing inflatable structure. There is a margin in the part connected to the inflatable structure, and this margin is greater than the margin of the pull rope 13).

[0029] When the device needs to be used, the user drops the device from the deck of the oil platform into the sea. When the device falls into the water and the center of gravity is biased towards the first protective shell 1, the device floats on the sea surface with the first protective shell 1 on the lower side, so as to facilitate the subsequent forward deployment of the life raft.

[0030] When unfolding the device, the user pulls the pull rope 13 through the existing tow rope. At this time, the remaining amount of the pull rope 13 is pulled by the existing tow rope. When the pull rope 13 and the connection part of the tow rope are in a straight state, the pull rope 13 immediately drives the two limit plates 12 to move to the right, causing the limit plates 12 to move horizontally to the right and gradually break away from contact with the fixed block 10 and the swing plate 11. In the above process, there is still a margin in the part where the existing tow rope is connected to the inflatable structure, and the existing inflatable structure will not be triggered at this time.

[0031] When the limiting plate 12 is out of contact with the fixed block 10 and the swing plate 11, the swing plate 11 swings upward under the action of the first torsion spring to release the limit on the second connecting rod 8, and then releases the limit on all the multi-stage elastic telescopic rods 7. The telescopic end of the multi-stage elastic telescopic rod 7 then drives the second connecting rod 8 to be squeezed forward, so that the second connecting rod 8 squeezes the second strap 14 (at this time, the swing plate 11 no longer limits the second connecting rod 8), and the second strap 14 immediately breaks to release the limit on the second connecting rod 8 and the winding member 9. The telescopic end of the multi-stage elastic telescopic rod 7 pushes the second connecting rod 8 forward during the extension process so that it contacts the second protective shell 2 and applies an extrusion force. During the movement of the second connecting rod 8, the winding member 9 is pulled, so that the winding member 9 drives the first connecting rod 5 to rotate while being released. The extrusion force provided by the second connecting rod 8 on the second protective shell 2 and the extrusion of the winding member 9 on the second protective shell 2 after the release of the winding member 9 cause the first strap 3 to break.

[0032] When the first strap 3 is broken (at this time the user pulls the existing towing rope again to trigger the existing inflation mechanism to inflate the life raft), the second protective shell 2 swings backward along the first protective shell 1 under the action of compression, thereby avoiding the active release of the winding member 9. The telescopic end of the multi-stage elastic telescopic rod 7 drives the winding member 9 to be released synchronously through the second connecting rod 8 during the extension process, so that the winding member 9 gradually switches from the retracted state to the released state. During the release process, the winding member 9 drives the life raft inside it to be released synchronously.

[0033] During the release of the winding member 9, the first connecting rod 5 is driven to rotate, so that the two threaded parts 15 on the first connecting rod 5 respectively drive the two limit frames 16 to move toward each other, and the limit frames 16 gradually disengage from the adjacent fixed seats 4 during the movement. When the winding member 9 is unfolded (it has been inflated by the existing inflation mechanism during the unfolding of the winding member 9), the telescopic ends of all the multi-stage elastic telescopic rods 7 have been extended, and the limit frames 16 have disengaged from the adjacent fixed seats 4. Under the action of the adjacent springs of the connecting frame 6, the connecting frame 6 drives the first connecting rod 5, all the multi-stage elastic telescopic rods 7, the second connecting rod 8, the winding member 9, all the threaded parts 15 and all the limit frames 16 to pop out from the first protective shell 1, so that the above-mentioned parts actively disengage from the first protective shell 1 to avoid affecting the deployment of the life raft. After the telescopic ends of all the multi-stage elastic telescopic rods 7 are extended, the existing inflation mechanism causes the life raft to inflate.

[0034] Example 2

[0035] Based on Example 1, please refer to Figure 4 、 Figure 5 and Figure 8 , and also includes a plurality of rotating members 17, which are all rotatably connected to the winding member 9, and a second torsion spring is provided between the rotating member 17 and the winding member 9. The rotating member 17 passes through the winding member 9 and is fixedly connected to a support plate 18, which is used to support the winding member 9. The support plate 18 is provided with an arc chamfer for guiding the release of the winding member 9.

[0036] In the above scheme, when the winding member 9 is in the winding state, the second torsion spring between the rotating member 17 and the winding member 9 is in the stored force state, which is used to enable the winding member 9 to rotate to the extension line of its center line to form a cross with the central axis of the first connecting rod 5 after the winding member 9 is released, thereby increasing the structural strength of the winding member 9. During the release process of the winding member 9, the arc-shaped chamfer of the support plate 18 squeezes the winding member 9, shortening the release time of the winding member 9.

[0037] Working principle: The winding member 9 drives the life raft to be released synchronously during the release process. Under the action of the second torsion spring between the rotating member 17 and the winding member 9, the rotating member 17 drives the support plate 18 to rotate along the winding member 9, thereby squeezing the winding member 9 and assisting the opening of the winding member 9.

[0038] When the winding member 9 switches from the winding state to the released state, the support plates 18 switch from the state in which the extension of the center line thereof is parallel to the center axis of the second connecting rod 8 to the cross-distributed state, providing support for the winding member 9 and increasing the structural strength of the winding member 9. Prior to this, the winding member 9 and the parts thereon have been located on the lower side of the life raft. Through the cooperation of the winding member 9 and the support plates 18, the overall rigidity and center of gravity stability of the life raft are enhanced, thereby improving the balance and anti-overturning ability of the life raft on the water surface.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A portable life raft installed on the deck of an oil platform, characterized in that it comprises: A first protective shell (1); The second protective shell (2) is rotatably connected to the first protective shell (1), and a first binding strap (3) is commonly provided on the outer sides of the first protective shell (1) and the second protective shell (2); The symmetrically distributed fixing seats (4) are all fixedly connected in the first protective shell (1), and the symmetrically distributed fixing seats (4) are rotatably and slidably connected to a first connecting rod (5) located in the first protective shell (1); A connecting frame (6) is slidably connected between the symmetrically distributed fixing seats (4), the connecting frame (6) is rotatably connected to the first connecting rod (5), and the connecting frame (6) is fixed with symmetrically distributed multi-stage elastic telescopic rods (7); A second connecting rod (8) is fixedly connected to the telescopic ends of the symmetrically distributed multi-stage elastic telescopic rods (7), and the second connecting rod (8) is used to squeeze the second protective shell (2); A reeling member (9) is wound around the first connecting rod (5) and fixedly connected to the second connecting rod (8), and the reeling member (9) is used to reel in the life raft.

2. A portable life raft installed on the deck of an oil platform according to claim 1, characterized in that: The symmetrically distributed multi-stage elastic telescopic rods (7) are located on a side of the first protective shell (1) away from the rotation position of the first protective shell and the second protective shell (2).

3. The portable life raft installed on the deck of an oil platform according to claim 1, characterized in that: The winding member (9) is spiral-shaped.

4. The portable life raft installed on the deck of an oil platform according to claim 1, characterized in that: A fixed block (10) is fixedly connected to one side of the first protective shell (1) close to the second connecting rod (8), and the fixed block (10) is rotatably connected to a swing plate (11). The swing plate (11) is used to limit the second connecting rod (8), and a first torsion spring is provided between the fixed block (10) and the swing plate (11).

5. The portable life raft installed on the deck of an oil platform according to claim 4, characterized in that: The rotational positions of the fixed block (10) and the swing plate (11) are not located in the moving path of the second connecting rod (8).

6. The portable life raft installed on the deck of an oil platform according to claim 5, characterized in that: The fixed block (10) and the swing plate (11) are slidably connected to a limit plate (12), and the limit plate (12) is used to limit the swing plate (11). The second protective shell (2) is slidably connected to a pull rope (13), and the pull rope (13) has a margin in the second protective shell (2). The pull rope (13) is used to drive the limit plate (12) to move.

7. The portable life raft installed on the deck of an oil platform according to claim 6, characterized in that: A second binding belt (14) is wound around the second connecting rod (8) and the winding member (9). When the swing plate (11) limits the position of the second connecting rod (8), the second binding belt (14) fixes the winding member (9) so that the winding member (9) remains in a wound state.

8. The portable life raft installed on the deck of an oil platform according to claim 1, characterized in that: The first connecting rod (5) is provided with threaded portions (15) the same number as the fixing seats (4), and the threaded portions (15) are threadedly connected to a limiting frame (16) slidably connected to the fixing seats (4). The limiting frame (16) is used to fix the first connecting rod (5) on the symmetrically distributed fixing seats (4), and a spring is provided in the fixing seats (4) for assisting the connecting frame (6) to pop out.

9. The portable life raft installed on the deck of an oil platform according to claim 3, characterized in that: The invention also includes a plurality of rotating members (17), each of which is rotatably connected to the winding member (9), a second torsion spring is provided between the rotating member (17) and the winding member (9), the rotating member (17) passes through the winding member (9) and is fixedly connected to a support plate (18), and the support plate (18) is used to support the winding member (9).

10. The portable life raft installed on the deck of an oil platform according to claim 9, characterized in that: The support plate (18) is provided with an arc-shaped chamfer that facilitates squeezing of the winding member (9).

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