Lifting platform suitable for operation of hand wheel of blowout preventer

Abstract

The lifting platform comprises a platform body, a plurality of supporting legs are fixed to the bottom face of the platform body, the lower ends of the supporting legs are connected with a base in an inserted mode, an operation table is stacked on the platform body, a side fence, a rear fence and a front fence are arranged on the three continuous edges of the platform body respectively, and an opening for operators to go in and out is reserved between the side fence and the front fence. A foldable ladder stand is arranged on the side surface of the platform at the opening, and handrails are mounted on two sides of the ladder stand; and the platform side without the fence is hinged with an expansion platform. The overall height of the platform can be adjusted in a large range through the telescopic supporting legs, then adjustment can be conducted in a small range through the first lifting plate and the second lifting plate, the operation range can be adjusted by expanding the platform, and therefore the lifting type blowout preventer and the lifting type blowout preventer with the heights changed can be operated, and the application range is wide.

Description

Technical Field

[0001] The present application relates to an operating platform, and in particular to a lifting platform suitable for hand wheel operation of a well plugging device. Background Art

[0002] In oil pumping platforms, well caps are often used to form a seal between the wellhead and the pumping unit. During the pumping process, oil flows through the pipeline to the wellhead and is then pumped to the surface. Well caps can isolate different parts of the oil well to prevent oil and gas from leaking and polluting the environment. In addition, well caps can also support and fix the wellbore and pipe string to ensure the safety of drilling and well repair operations.

[0003] Blowout preventers are used to close the wellhead during oil testing, well repair, and well completion operations to prevent blowout accidents. They combine the functions of full sealing and semi-sealing into one, and have the characteristics of simple structure, easy operation, and high pressure resistance. They are commonly used safety sealing wellhead devices in oil fields to prevent blowouts.

[0004] In the prior art, the lift-type well plug and blowout preventer are fixed on the drilling platform. As the drilling platform well is drilled, the height of the blowout preventer switch hand wheel will change when the drilling rig is drilling platform wells and non-platform wells. Since the height of an ordinary working platform cannot be changed, the operating personnel standing on the working platform cannot operate the lift-type well plug and blowout preventer after the height is changed.

[0005] Some work platforms in the prior art that can adjust the lifting height use the height of the legs to adjust the overall height of the platform. This adjustment method is time-consuming and inconvenient to operate.

[0006] Therefore, it is necessary to design a work platform which has a simple structure, is easy to operate and can be applied to different heights. Summary of the invention

[0007] The present application provides a lifting platform suitable for handwheel operation of a well plugging device, which can adjust both the overall height and the local height.

[0008] The purpose of the present application is achieved as follows: a lifting platform suitable for handwheel operation of a well sealing device comprises a platform, a plurality of legs are fixed on the bottom surface of the platform, the lower ends of the legs are plugged into the base, an operating table is stacked on the platform, side fences, a rear fence and a front fence are respectively arranged along the three continuous sides of the platform, an opening is left between the side fences and the front fence for operators to enter and exit, a foldable ladder is arranged on the side of the platform at the opening, and handrails are installed on both sides of the ladder; an expansion platform is hinged on the side of the platform where there is no fence.

[0009] An axis is provided on the side of the platform where no fence is provided, and symmetrical connecting ears are provided on the side of the extended platform. An axis hole is opened on the connecting ear, and the axis passes through the axis hole. Support blocks are sleeved on the axis on both sides of the connecting ear. The support blocks include a surface for supporting the bottom surface of the extended platform and a b surface supported on the side of the support leg.

[0010] A plurality of insertion holes are arranged at the edge of the platform, and downwardly extending insertion rods are arranged at the bottom edges of the side fences, the front fences and the rear fences. The insertion rods correspond to the insertion holes one by one. After the insertion rods are inserted into the insertion holes, the side fences, the front fences and the rear fences can be connected to the platform.

[0011] The rear end of the side fence is fixedly connected to the left end of the rear fence. The right ends of the front fence and the rear fence are opposite to each other and are respectively hinged with the second extension fence and the first extension fence. The second extension fence and the first extension fence form an expandable and closable structure, and connecting parts are arranged on the opposite ends of the two.

[0012] A first lifting plate is arranged on the closed side of the operating table, and a second lifting plate is arranged on the open side of the operating table. The first lifting plate and the second lifting plate are respectively slidably connected to a column, and at least one telescopic rod is hinged on the bottom surfaces of the first lifting plate and the second lifting plate.

[0013] A slide groove is provided on the side wall of the column, a cavity connected to the slide groove is provided in the column, a clamp head sliding up and down in the slide groove is provided in the cavity, and the clamp head is fixedly connected to the first lifting plate or the second lifting plate through a connecting rod.

[0014] The ladder comprises an upper step and a lower step, which are hinged to form a foldable structure, and the upper end of the upper step is hinged to the side of the platform.

[0015] Sockets are arranged on both sides of the ladder, and a plug rod extending downward is arranged at the lower end of the handrail. The plug rod is plugged into the sockets correspondingly, and pull rods are connected at the corresponding positions of the handrail and the side fence and the front fence.

[0016] A slot is provided in the base, a plurality of corresponding sockets are provided on the slot, and sockets corresponding to the sockets are provided at the lower part of the supporting legs.

[0017] The application can adjust the overall height of the platform in a large range through the retractable legs, and can adjust it in a small range through the first and second lifting plates. The operating range can also be adjusted by expanding the platform, so that the lifting well plug and blowout preventer with changed height can be operated, and the application range is wide. The application has a structure that is easy to disassemble, fold and carry. The whole is made of carbon steel material, which is less affected by environmental factors such as temperature and humidity, and is suitable for promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The specific structure of this application is given by the following drawings and embodiments: Attached Figure 1It is a schematic diagram of the structure of this application; Attached Figure 2 It is a top view structural schematic diagram of the present application; Attached Figure 3 2 is a schematic diagram of the structure of the first lifting plate.

[0019] Legend: 1. Handrail, 2. Ladder, 3. Operating table, 4. First lifting plate, 5. Telescopic rod, 6. Base, 7. Leg, 8. Platform, 9. Connecting sleeve, 10. Side fence, 11. Rear fence, 12. First extension fence, 13. Extended platform, 14. Second extension fence, 15. Front fence, 16. Second lifting plate, 17. Post, 18. Slide, 19. Clamp. DETAILED DESCRIPTION

[0020] The present application is not limited by the following embodiments, and the specific implementation method can be determined according to the technical solution of the present application and actual conditions.

[0021] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached Figure 1 The layout is described in detail, such as the positional relationship of top, bottom, left, right, etc. is based on the instructions attached to the manual. Figure 1 It is determined by the layout direction.

[0022] The present invention will be further described below in conjunction with embodiments and drawings. Figure 1-2 As shown, the lifting platform suitable for handwheel operation of the well sealing device includes a platform 8, a plurality of legs 7 are fixed on the bottom surface of the platform 8, the lower ends of the legs 7 are plugged into the base 6, an operating table 3 is stacked on the platform 8, and side fences 10, a rear fence 11, and a front fence 15 are respectively arranged along the three continuous sides of the platform 8, an opening for operators to enter and exit is reserved between the side fences 10 and the front fence 15, a foldable ladder 2 is arranged on the side of the platform 8 at the opening, and handrails 1 are installed on both sides of the ladder 2; an expansion platform 13 is hinged on the side of the platform 8 where there is no fence.

[0023] Furthermore, an axis is provided on the side of the platform 8 where no fence is provided, and symmetrical connecting ears are provided on the side of the expansion platform 13, and an axis hole is provided on the connecting ear, through which the axis passes, and support blocks are sleeved on the axis on both sides of the connecting ear, and the support blocks include an a surface for supporting the bottom surface of the expansion platform 13 and a b surface supported on the side of the leg 7. When the expansion platform 13 is needed, the expansion platform 13 is flipped up to a horizontal level, and then the support block is moved closer to the connecting ear until the a surface of the support block touches the bottom surface of the expansion platform 13, and the b surface of the support block touches the side of the leg 7. At this time, the expansion platform 13 can be used as a temporary working plane under the support of the support block. Conversely, after the support block is moved away from the connecting ear, so that the support block no longer contacts the bottom surface of the expansion platform 13, the expansion platform 13 can be flipped down and hung on the side of the leg 7.

[0024] Furthermore, a plurality of sockets are provided at the edge of the platform 8, and downwardly extending plug rods are provided at the bottom edges of the side fence 10, the front fence 15 and the rear fence 11. The plug rods correspond to the sockets one by one. After the plug rods are inserted into the sockets, the side fence 10, the front fence 15 and the rear fence 11 can be connected to the platform 8.

[0025] Furthermore, the rear end of the side fence 10 is fixedly connected to the left end of the rear fence 11, and the front fence 15 is opposite to the right end of the rear fence 11, and is respectively hinged with a second extension fence 14 and a first extension fence 12. The second extension fence 14 and the first extension fence 12 form a structure that can be opened and closed, and connectors are provided on the opposite ends of the two. When the extension platform 13 is unfolded, the second extension fence 14 and the first extension fence 12 can be opened to allow operators to enter and exit the extension platform 13. After the extension platform 13 is lowered, the second extension fence 14 and the first extension fence 12 are closed to close the periphery of the platform 8 to prevent people from falling.

[0026] Further, such as Figure 1-3 As shown, a first lifting plate 4 is provided on the closed side of the operating platform 3, and a second lifting plate 16 is provided on the open side of the operating platform 3. The first lifting plate 4 and the second lifting plate 16 are respectively slidably connected to a column 17, and at least one telescopic rod 5 is hinged on the bottom surface of the first lifting plate 4 and the second lifting plate 16.

[0027] Furthermore, a slide groove 18 is provided on the side wall of the column 17, a cavity connected to the slide groove 18 is provided in the column 17, a clamping head 19 sliding up and down in the slide groove 18 is provided in the cavity, and the clamping head 19 is fixedly connected to the first lifting plate 4 or the second lifting plate 16 through a connecting rod.

[0028] The first lifting plate 4 or the second lifting plate 16 can be turned over freely through the clamp 19. When the first lifting plate 4 or the second lifting plate 16 is needed, the first lifting plate 4 or the second lifting plate 16 is turned over to the horizontal position, and the length of the telescopic rod 5 is adjusted, and the lower end of the telescopic rod 5 is supported on the upper end surface of the operating table 3. The operator can stand on the first lifting plate 4 or the second lifting plate 16 to operate, and the height of the first lifting plate 4 or the second lifting plate 16 can be adjusted by adjusting the height of the telescopic rod 5, thereby adjusting the height of the operator on the operating table 3 within a small range.

[0029] Furthermore, the ladder 2 includes an upper step and a lower step, which are hinged to form a foldable structure, and the upper end of the upper step is hinged to the side of the platform 8. When the height of the platform 8 is adjusted, the lower end of the ladder 2 moves outward, and its inclination is naturally adjusted. As the height of the platform 8 continues to decrease, the lower step can be folded to the back of the upper step.

[0030] Further, jacks are provided on both sides of the ladder 2, and a plug rod extending downward is provided at the lower end of the handrail 1, and the plug rod is plugged into the jacks accordingly. A pull rod is connected to the handrail 1 at the corresponding positions of the side fence 10 and the front fence 15.

[0031] Furthermore, a slot is provided in the base 6, a number of corresponding sockets are provided on the slot, and sockets corresponding to the sockets are provided at the lower part of the leg 7. After the leg 7 is inserted into the base 6, the sockets correspond to each other, and the leg 7 can be fixed by inserting a positioning pin into the corresponding socket. When the height needs to be adjusted, the sockets on the leg 7 are adjusted to be aligned with the sockets of the base 6 at different heights, and then the positioning pin is inserted.

[0032] The present application can adjust the height of the platform 8 by adjusting the insertion height between the legs 7 and the base 6 to adapt to operation requirements at different heights.

[0033] The present application can adjust the height of the lifting plate 4 through the telescopic rod 5 to meet the need of adjusting the height within a small range.

[0034] The present application encloses the platform 8 on all sides through the side fence 10 , the rear fence 11 , the front fence 15 , the second extension fence 14 and the first extension fence 12 .

[0035] The present application can increase the operating range by extending the platform 13 .

[0036] The side fence 10, rear fence 11, front fence 15, handrail 1, platform 8 and ladder 2 of the present application are all plug-in structures, which can be quickly disassembled during transportation to reduce the overall height.

[0037] The ladder 2 of the present application is a folding structure, which can not only meet the working requirements but also reduce the space occupied during transportation.

[0038] In summary, the present application has a simple structure, is highly flexible and adjustable, and is easy to disassemble, fold, and carry. It meets all the requirements of land drilling rigs for handwheel operation of the well plugger and has been proven in drilling production trials and practical applications.

[0039] The above description is only an example for clearly explaining the present application, and is not intended to limit the implementation methods of the present application. Any obvious changes or modifications derived from the technical solution of the present application are still within the scope of protection of the present application.

Claims

1. A lifting platform suitable for hand wheel operation of a well plugging device, comprising a platform, a plurality of legs fixed on the bottom surface of the platform, the lower ends of the legs being plugged into the base, and an operating table stacked on the platform, characterized in that: Side fences, a rear fence and a front fence are respectively arranged along the three continuous sides of the platform. An opening is left between the side fences and the front fence for operators to enter and exit. A foldable ladder is arranged on the side of the platform at the opening, and handrails are installed on both sides of the ladder. An expansion platform is hinged on the side of the platform where there is no fence.

2. The lifting platform suitable for hand wheel operation of the well plugging device according to claim 1, characterized in that: An axis is provided on the side of the platform where no fence is provided, and symmetrical connecting ears are provided on the side of the extended platform. An axis hole is opened on the connecting ear, and the axis passes through the axis hole. Support blocks are sleeved on the axis on both sides of the connecting ear. The support blocks include a surface for supporting the bottom surface of the extended platform and a b surface supported on the side of the support leg.

3. The lifting platform suitable for hand wheel operation of well plugging device according to claim 1, characterized in that: A plurality of insertion holes are arranged at the edge of the platform, and downwardly extending insertion rods are arranged at the bottom edges of the side fences, the front fences and the rear fences. The insertion rods correspond to the insertion holes one by one. After the insertion rods are inserted into the insertion holes, the side fences, the front fences and the rear fences can be connected to the platform.

4. The lifting platform suitable for hand wheel operation of well plugging device according to claim 1 or 3, characterized in that: The rear end of the side fence is fixedly connected to the left end of the rear fence. The right ends of the front fence and the rear fence are opposite to each other and are respectively hinged with the second extension fence and the first extension fence. The second extension fence and the first extension fence form an expandable and closable structure, and connecting parts are arranged on the opposite ends of the two.

5. The lifting platform suitable for hand wheel operation of well plugging device according to claim 1, characterized in that: A first lifting plate is arranged on the closed side of the operating table, and a second lifting plate is arranged on the open side of the operating table. The first lifting plate and the second lifting plate are respectively slidably connected to a column, and at least one telescopic rod is hinged on the bottom surfaces of the first lifting plate and the second lifting plate.

6. The lifting platform suitable for hand wheel operation of the well plugging device according to claim 5, characterized in that: A slide groove is provided on the side wall of the column, a cavity connected to the slide groove is provided in the column, a clamp head sliding up and down in the slide groove is provided in the cavity, and the clamp head is fixedly connected to the first lifting plate or the second lifting plate through a connecting rod.

7. The lifting platform suitable for hand wheel operation of well plugging device according to claim 1, characterized in that: The ladder comprises an upper step and a lower step, which are hinged to form a foldable structure, and the upper end of the upper step is hinged to the side of the platform.

8. The lifting platform suitable for hand wheel operation of well plugging device according to claim 7, characterized in that: Sockets are arranged on both sides of the ladder, and a plug rod extending downward is arranged at the lower end of the handrail. The plug rod is plugged into the sockets correspondingly, and pull rods are connected at the corresponding positions of the handrail and the side fence and the front fence.

9. The lifting platform suitable for hand wheel operation of well plugging device according to claim 1, characterized in that: A slot is provided in the base, a plurality of corresponding sockets are provided on the slot, and sockets corresponding to the sockets are provided at the lower part of the supporting legs.

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