Self-lifting workover rig racking platform integrating transfer platform, bay platform and escape system

Abstract

The utility model relates to a self-lifting workover rig racking platform integrating a transfer platform, a bay platform and an escape system. The self-lifting workover rig racking platform comprises a main frame body, an auxiliary frame, a transfer platform system, a bay platform system, the escape system and a self-lifting system, wherein one end of the main frame body is connected with a derrick, the other end is respectively hinged with the auxiliary frame and the escape system, and one side is provided with the transfer platform system and the bay platform system; and the automatic lifting and releasing system is fixedly connected with the auxiliary frame. The transfer platform system is arranged on one side of the main frame body, so that a derrick worker can be conveniently transferred to the position above a derrick ladder from a racking platform, and the safety risk that the derrick worker needs to span in a suspended mode is eliminated. The auxiliary frame and the escape system are arranged at the other end of the main frame body, the escape system is convenient to install and does not occupy the space of the racking platform, the self-lifting and releasing system and the auxiliary frame are integrated, the horizontal position of the racking platform during unfolding is adjusted through the self-lifting and releasing system, and it is guaranteed that the racking platform is approximately horizontal.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil drilling equipment, and specifically relates to a two-layer platform of a self-lifting and lowering well repair machine integrating a transfer platform, a floating platform and an escape system. Background Art

[0002] At present, when the derrick workers on the second-level platform of the well repair rig transfer from the second-level platform to the derrick ladder, they can only leap over the derrick ladder in mid-air, which is neither convenient nor safe. In addition, a detachable anti-fall bracket is generally welded on the walkway of the second-level platform, which occupies the space of the walkway and reduces the width of the safe passage. The traditional way to retract and extend the second-level platform is to pass the rope through the gap between the upper and lower bodies of the derrick, and the dead rope ear plate is fixed to the upper part of the lower body of the derrick. The structure of the retraction and extension of the second-level platform is driven by the extension and contraction of the upper body of the derrick. When the rope passes between the upper and lower bodies of the derrick, there is interference and wear with the derrick structure. In addition, due to inaccurate calculations and plastic elongation of the rope itself when threading the rope, the horizontal position deviation of the second-level platform after deployment is large. Utility Model Content

[0003] In order to solve the above problems existing in the prior art, the utility model provides a two-layer platform of a self-lifting workover machine integrating a transfer platform, a floating platform and an escape system. The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0004] A self-lifting and lowering two-layer platform of a workover rig integrating a transfer platform, a floating platform and an escape system, comprising: a main frame, an auxiliary frame, a transfer platform system, a floating platform system, an escape system and a self-lifting and lowering system; wherein:

[0005] One end of the main frame is used to connect to the derrick, the other end is hinged to the auxiliary frame and the escape system respectively, and one side is fixedly connected to the transfer platform system and the floating platform system;

[0006] The self-lifting and placing system is fixedly connected to the auxiliary frame.

[0007] In a specific embodiment, the transfer table system includes a transfer table telescopic guide rail and a transfer table body;

[0008] The transfer platform telescopic guide rail is fixedly connected to the main frame, and one end thereof extends toward the derrick;

[0009] The transfer platform body is slidably connected to the transfer platform telescopic guide rail, and the transfer platform body can move along the transfer platform telescopic guide rail to move away from or approach the derrick.

[0010] In a specific embodiment, the transfer platform system further includes a transfer platform telescopic cylinder;

[0011] The fixed end of the transfer platform telescopic oil cylinder is hinged to the transfer platform telescopic guide rail, and the telescopic end is hinged to the transfer platform body.

[0012] In a specific embodiment, the floating platform system includes a floating platform telescopic guide rail and a floating platform body;

[0013] The telescopic guide rail of the floating platform is fixedly connected to the main frame;

[0014] The floating platform body is slidably connected to the floating platform telescopic guide rail, and the floating platform body can move along the floating platform telescopic guide rail to move away from or close to one side of the main frame.

[0015] In a specific embodiment, the floating platform system further includes a floating platform telescopic cylinder;

[0016] The fixed end of the telescopic oil cylinder of the floating platform is hinged to the telescopic guide rail of the floating platform, and the telescopic end is hinged to the main body of the floating platform.

[0017] In a specific embodiment, the escape system includes: an escape door, an anti-fall bracket, an upper guide rail of the anti-fall bracket, an escape system fixed pulley, an escape steel rope and a sliding assembly; wherein,

[0018] The escape door is arranged in the middle of the auxiliary frame, is fixedly connected to the auxiliary frame, and one end is hinged to the main frame;

[0019] The anti-fall bracket is arranged at the other end of the escape door and is hinged or pin-connected to the escape door;

[0020] One end of the upper guide rail of the anti-falling bracket is fixedly connected to the anti-falling bracket, and the upper guide rail of the anti-falling bracket is connected to the rolling pair of the sliding assembly;

[0021] The fixed pulley of the escape system is arranged near the top of the escape door, is fixedly connected to the escape door, and is hinged to the other end of the upper guide rail of the anti-fall bracket;

[0022] The escape steel rope is connected to the escape system fixed pulley and the rolling pair of the sliding assembly, and is used to be connected to the rolling pair of the ground driving wheel device of the escape system.

[0023] In a specific embodiment, the sliding assembly includes: a first pulley, an anti-fall connection frame, a connecting pipe, a second pulley, a second pulley side plate and a grip frame, wherein:

[0024] The first pulley and the second pulley are both connected to the escape rope rolling pair;

[0025] One end of the anti-fall connecting frame is fixedly connected to the first pulley, and the other end is hinged to one end of the connecting pipe;

[0026] The other end of the connecting pipe is hinged to the handle frame;

[0027] One end of the second pulley side plate is fixedly connected to the second pulley, and the other end is fixedly connected to the handle frame.

[0028] In a specific embodiment, it also includes a driller's opposite side rail, a driller's side rail and a telescopic tongue platform;

[0029] The driller's side railing is arranged on one side of the main frame, and the end thereof is hinged to the floating platform system;

[0030] The driller side rail is arranged on the other side of the main frame, and the end portion is hinged to the main frame;

[0031] The fixed end of the telescopic tongue platform is fixedly connected to the other end of the main frame.

[0032] In a specific embodiment, the self-lifting and lowering system includes a winch;

[0033] The winch is fixedly connected to the auxiliary frame, and is connected to a pulley fixed on the auxiliary frame and a pulley fixed on the derrick through a connecting rope to form a rolling pair.

[0034] In a specific embodiment, the winch includes a hydraulic winch, a pneumatic winch, or an explosion-proof electric winch.

[0035] Compared with the prior art, the utility model has the following beneficial effects:

[0036] By setting up a transfer platform system on one side of the main frame, it is convenient for derrick workers to transfer from the second-level platform to the derrick ladder, eliminating the safety risk of derrick workers needing to cross in midair. An auxiliary frame and an escape system are set at the other end of the main frame. The escape system is easy to install and does not occupy the space of the second-level platform. The self-lifting system is integrated with the auxiliary frame. The horizontal position of the second-level platform when it is unfolded is adjusted by the self-lifting system, eliminating the large deviation in the horizontal position of the second-level platform after unfolding due to inaccurate calculation and plastic elongation of the rope itself when the rope is passed through the upper and lower bodies of the derrick, ensuring the approximate level of the second-level platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of a two-layer platform of a self-lifting workover rig with an integrated transfer platform, a floating platform and an escape system provided by an embodiment of the utility model;

[0038] Figure 2 It is a structural schematic diagram of a transfer platform system and a floating platform system provided in an embodiment of the utility model;

[0039] Figure 3 It is a structural schematic diagram of the floating platform system provided by the embodiment of the utility model in the extended state;

[0040] Figure 4It is a structural schematic diagram of the floating platform system provided by the embodiment of the utility model in the retracted state;

[0041] Figure 5 It is a structural schematic diagram of an escape system provided by an embodiment of the utility model;

[0042] Figure 6 This utility model Figure 5 A partial enlarged view of the middle Ⅰ position;

[0043] Figure 7 This utility model Figure 5 A partial enlarged view of the middle II position;

[0044] Figure 8 This utility model Figure 5 Cross-section view at the middle AA position;

[0045] Fig. 9 is a side view of the escape system provided by an embodiment of the utility model;

[0046] Fig.10 It is a structural schematic diagram of the use state of the escape system provided by the embodiment of the utility model.

[0047] Reference numerals:

[0048] 1: Main frame; 2: Auxiliary frame; 3: Transfer platform system; 4: Floating platform system; 5: Escape system; 6: Railing on the opposite side of the driller; 7: Railing on the side of the driller; 8: Telescopic tongue platform; 9: Derrick; 301: Transfer platform body; 302: Transfer platform telescopic cylinder; 303: Transfer platform telescopic guide rail; 401: Floating platform body; 402: Floating platform telescopic cylinder; 403: Floating platform telescopic guide rail; 404: First ear plate; 405: Second ear plate; 406: Third ear plate; 407: First pin shaft; 408: Second pin shaft Axis; 501: escape door; 502: first latch hole; 503: second latch hole; 504: anti-fall bracket; 505: rotating shaft; 506: latch; 507: upper guide rail of anti-fall bracket; 508: first pulley; 509: fixed pulley of escape system; 510: side plate of second pulley; 511: grab handle frame; 512: anti-fall connecting frame; 513: connecting pipe; 514: second pulley; 515: escape steel rope; 516: ground driving wheel device of escape system; 10: self-lifting system. DETAILED DESCRIPTION

[0049] The present invention is further described in detail below in conjunction with specific embodiments, but the implementation methods of the present invention are not limited thereto.

[0050] Embodiment 1

[0051] See also Figure 1 , Figure 1The utility model is provided in an embodiment of the present invention. The utility model is a schematic diagram of a second-layer platform of a self-lifting workover rig with an integrated transfer platform, a floating platform and an escape system.

[0052] The embodiment of the utility model provides a self-lifting and lowering second-layer platform of a well repair rig integrating a transfer platform, a floating platform and an escape system, comprising: a main frame 1, an auxiliary frame 2, a transfer platform system 3, a floating platform system 4, an escape system 5, a self-lifting and lowering system 10, a driller's opposite side railing 6, a driller's side railing 7 and a telescopic tongue platform 8; wherein one end of the main frame 1 is used to connect the derrick 9, the other end is hinged to the auxiliary frame 2 and the escape system 5 respectively, and one side is fixedly connected to the transfer platform system 3 and the floating platform system 4. The self-lifting and lowering system 10 is fixedly connected to the auxiliary frame 2. The driller's opposite side railing 6 is arranged on one side of the main frame 1, and the end of the driller's opposite side railing 6 is hinged to the floating platform system 4. The driller's side railing 7 is arranged on the other side of the main frame 1, and the end of the driller's side railing 7 is hinged to the main frame 1. The fixed end of the telescopic tongue platform 8 is fixedly connected to the other end of the main frame 1. Specifically, the escape system 5 and the auxiliary frame 2 can be arranged in parallel at the other end of the main frame 1, or they can be integrated together. When the escape system 5 and the auxiliary frame 2 are integrated together, the escape system 5 can be fixedly arranged at the end or middle position of the auxiliary frame 2. In this embodiment, one side of the main frame 1 and the other side of the main frame 1 are parallel to each other, one end of the main frame 1 and the other end of the main frame 1 are parallel to each other, and one side of the main frame 1 and the other side of the main frame 1 are perpendicular to one end of the frame 1 and the other end of the main frame 1, and one side of the main frame 1, the other side of the main frame 1, one end of the main frame 1 and the other end of the main frame 1 can form a plane.

[0053] Further, the transfer platform system 3 includes a transfer platform telescopic oil cylinder 302, a transfer platform telescopic guide rail 303 and a transfer platform body 301. The transfer platform telescopic guide rail 303 is fixedly connected to the main frame 1, and one end extends toward the direction of the derrick 9. The transfer platform body 301 is slidably connected to the transfer platform telescopic guide rail 303, and the transfer platform body 301 can move along the transfer platform telescopic guide rail 303 to move away from or close to the derrick 9. The fixed end of the transfer platform telescopic oil cylinder 302 is hinged to the transfer platform telescopic guide rail 303, and the telescopic end is hinged to the transfer platform body 301. The floating platform system 4 includes a floating platform telescopic oil cylinder 402, a floating platform telescopic guide rail 403 and a floating platform body 401. The floating platform telescopic guide rail 403 is fixedly connected to the main frame 1, and the floating platform body 401 is slidably connected to the floating platform telescopic guide rail 403. The floating platform body 401 can move along the floating platform telescopic guide rail 403 to move away from or close to one side of the main frame 1. The fixed end of the floating platform telescopic oil cylinder 402 is hinged to the floating platform telescopic guide rail 403 , and the telescopic end is hinged to the floating platform body 401 .

[0054] For details, see Figure 2 to Figure 8. The auxiliary frame 2 is welded from a rectangular steel pipe, and the auxiliary frame 2 is hinged to the main frame 1 through an ear seat and a pin. The transfer platform telescopic guide rail 303 is welded to the bottom of one end of the main frame 1, and the fixed end of the transfer platform telescopic oil cylinder 302 is hinged to the transfer platform telescopic guide rail 303 through an ear seat and a pin, and the telescopic end is hinged to the transfer platform main body 301 through an ear seat and a pin. The transfer platform telescopic oil cylinder 302 drives the transfer platform main body 301 to slide on the transfer platform telescopic guide rail 303. When the transfer platform main body 301 moves to a position closer to the derrick 9, the derrick worker on the main frame 1 can be transferred to the derrick 9 through the transfer platform main body 301, avoiding the safety risk of the derrick worker needing to cross in midair. The transfer platform main body 301 can be retracted before the second-level platform is retracted and lowered, preventing the transfer platform main body 301 from interfering with the high-pressure riser on the derrick 9, saving the physical strength of the derrick worker when manually pulling out and retracting the transfer platform, and reducing the safety risk. At the same time, when the second-layer platform is transported alone, the transfer platform body 301 can be retracted, thereby reducing the overall transportation length of the second-layer platform and saving transportation space and costs.

[0055] Specifically, the telescopic guide rail 403 of the floating platform is welded to one end and the other end of the bottom of the main frame 1 respectively, the fixed end of the telescopic oil cylinder 402 of the floating platform is hinged to the telescopic guide rail 403 of the floating platform through the ear seat and the pin shaft, and the telescopic end is hinged to the floating platform main body 401 through the ear seat and the pin shaft. The telescopic oil cylinder 402 of the floating platform drives the floating platform main body 401 to move on the telescopic guide rail 403 of the floating platform. When the floating platform needs to be used, the telescopic oil cylinder 402 of the floating platform drives the floating platform main body 401 to extend, forming a channel on one side of the main frame 1. When the floating platform main body 401 is extended to a preset position, the first ear plate 404 on the main frame 1 and the second ear plate 405 on the floating platform main body 401 are hinged through the pin shaft to fix the floating platform main body 401 and the main frame 1. When the floating platform is not needed, the pin is taken out, and the first floating platform telescopic oil cylinder 402 drives the floating platform body 401 to be retracted. When the floating platform body 401 is retracted, it is located at the bottom of the main frame 1. When the floating platform body 401 is located at the bottom of the main frame 1, the first ear plate 404 on the main frame 1 and the third ear plate 406 at the end of the floating platform body 401 are hinged by the pin. When the floating platform body 401 is retracted, the transportation width of the derrick 9 can be reduced to prevent excessive width during transportation. The floating platform telescopic guide rail 403 and the transfer platform telescopic guide rail 303 are perpendicular to each other, and the transfer platform telescopic guide rail 303 is arranged on the side of the floating platform telescopic guide rail 403 close to the derrick 9, so the movements of the transfer platform body 301 and the floating platform body 401 do not interfere with each other.

[0056] Specifically, the end of the driller's side railing 6 and the third ear plate 406 at the end of the floating platform body 401 are hinged by the first pin 407 and the second pin 408. After the first pin 407 is pulled out, the driller's side railing 6 can rotate around the second pin 408. When the driller's side railing 6 rotates to a position parallel to one side of the main frame 1, the driller's side railing 6 is in use and can form a safety guardrail for the derrick workers. When it rotates to a position perpendicular to one side of the main frame 1, the driller's side railing 6 is in a folded state, and the driller's side railing 6 is located at the bottom of the main frame 1, reducing the transportation width of the derrick 9 and preventing it from being too wide during transportation. Figure 3 The handrail 6 on the driller's side is in the folded state. Figure 5 At the same time, when the second-layer platform is removed from the derrick 9 for separate transportation, the driller's side railing 6 and the driller's side railing 7 can be rotated and folded to the bottom of the second-layer platform main frame 1, which can reduce the workload of disassembling and installing the driller's side railing 6 and the driller's side railing 7, reduce the transportation height of the second-layer platform, and prevent the railing from being lost.

[0057] Further, the escape system 5 includes: an escape door 501, an anti-fall bracket 504, an upper guide rail 507 of the anti-fall bracket, an escape system fixed pulley 509, an escape steel rope 515 and a sliding assembly. Among them, the escape door 501 is arranged in the middle position of the auxiliary frame 2, the escape door 501 is fixedly connected to the auxiliary frame 2, and one end of the escape door 501 is hinged to the main frame 1. The anti-fall bracket 504 is arranged at the other end of the escape door 501, and the anti-fall bracket 504 is hinged or pin-connected to the escape door 501. One end of the upper guide rail 507 of the anti-fall bracket is fixedly connected to the anti-fall bracket 504, and the upper guide rail 507 of the anti-fall bracket is connected to the rolling pair of the sliding assembly. The escape system fixed pulley 509 is arranged at a position near the top of the escape door 501, the escape system fixed pulley 509 is fixedly connected to the escape door 501, and is hinged to one end of the upper guide rail 507 of the anti-fall bracket. The escape steel rope 515 is connected to the escape system fixed pulley 509 and the sliding assembly rolling pair, and is used to be connected to the escape system ground driving wheel device 516 rolling pair.

[0058] Further, the sliding assembly includes: a first pulley 508, an anti-fall connection frame 512, a connecting pipe 513, a second pulley 514, a second pulley side plate 510 and a grip frame 511, wherein the first pulley 508 and the second pulley 514 are both connected to the rolling pair of the escape steel rope 515. One end of the anti-fall connection frame 512 is fixedly connected to the first pulley 508, and the other end is hinged to one end of the connecting pipe 513. The other end of the connecting pipe 513 is hinged to the grip frame 511. One end of the second pulley side plate 510 is fixedly connected to the second pulley 514, and the other end is fixedly connected to the grip frame 511.

[0059] For details, see Figure 5 , Figure 8, Fig. 9 and Fig.10 The escape door 501 is welded to the middle of the auxiliary frame 2. The bottom of the escape door 501 is hinged to the main frame 1 through an ear seat and a pin. The anti-fall bracket 504 is arranged at the top of the escape door 501. When the auxiliary frame 2 is in a vertical working state, the anti-fall bracket 504 is pin-connected to the escape door 501 through a latch 506. The anti-fall bracket 504 is connected to the top of the escape door 501 through a rotating shaft 505. Please refer to Figure 8 The circumferential direction of the rotating shaft 505 is provided with a first latch hole 502 and a second latch hole 503. When the latch 506 is inserted into the first latch hole 502, the anti-fall bracket 504 is parallel to the escape door 501, that is, the escape system 5 is in a non-working state. When the latch 506 is inserted into the second latch hole 503, there is a certain angle between the anti-fall bracket 504 and the escape door 501, that is, the escape system 5 is in a working state. When the escape system 5 is in a working state, the sliding assembly moves along the upper guide rail 507 of the anti-fall bracket through the fixed pulley 509 of the escape system to the escape steel rope 515. The escape steel rope 515 moves under the drive of the ground driving wheel device 516 of the escape system, and the sliding assembly moves along the escape steel rope 515 to the ground. Integrating the escape system 5 on the auxiliary frame 2 saves the space of the second-layer platform and the installation time when the escape system 5 is needed, and reduces the manufacturing cost of the second-layer platform.

[0060] Furthermore, the self-lifting system 10 includes a winch, which is fixedly connected to the auxiliary frame 2 and connected to a pulley fixed to the auxiliary frame 2 and a pulley fixed to the derrick 9 through a connecting rope to form a rolling pair. The winch includes a hydraulic winch, a pneumatic winch, or an explosion-proof electric winch.

[0061] Specifically, the two winches are respectively installed on both sides of the auxiliary frame 2. After the derrick 9 is lifted from the horizontal position on the chassis, the winch can act as a dead rope anchor and a rope reel. As the upper body of the derrick 9 extends, the winch gradually releases the second-layer platform hanging rope until the second-layer platform reaches a horizontal state, preventing the rope from interfering with and wearing the derrick 9 when passing between the upper and lower bodies of the derrick 9, thereby extending the life of the steel rope. At the same time, the winch can wind and release the steel rope through the drum, adjust the horizontal position of the second-layer platform when it is unfolded, ensure the approximate level of the second-layer platform, and eliminate the risk of large deviation in the horizontal position of the second-layer platform after unfolding due to inaccurate calculation and plastic elongation of the rope itself in the prior art.

[0062] This embodiment provides a self-lifting and lowering second-level platform of a well repair rig that integrates a transfer platform, a floating platform, and an escape system. By setting a transfer platform system 3 on one side of the main frame 1, it is convenient for the derrick workers to transfer from the second-level platform to the ladder of the derrick 9, eliminating the safety risk of the derrick workers needing to cross in midair. An auxiliary frame 2 and an escape system 5 are set at the other end of the main frame 1. The escape system 5 is easy to install and does not occupy the space of the second-level platform. The self-lifting and lowering system 10 is integrated with the auxiliary frame 2. The horizontal position of the second-level platform when it is unfolded is adjusted by the self-lifting and lowering system 10, eliminating the large deviation in the horizontal position of the second-level platform after unfolding due to inaccurate calculation and plastic elongation of the rope itself when the rope is passed through the upper and lower bodies of the derrick 9, thereby ensuring the approximate levelness of the second-level platform.

[0063] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A two-layer platform for self-lifting and lowering workover rigs with integrated transfer platform, floating platform and escape system, characterized in that: include: A main frame (1), an auxiliary frame (2), a transfer platform system (3), a floating platform system (4), an escape system (5) and a self-lifting and lowering system (10); wherein, One end of the main frame (1) is used to connect to the derrick (9), the other end is hinged to the auxiliary frame (2) and the escape system (5), and one side is fixedly connected to the transfer platform system (3) and the floating platform system (4); The self-lifting system (10) is fixedly connected to the auxiliary frame (2).

2. The self-lifting and lowering two-layer platform of a workover rig integrating a transfer platform, a floating platform and an escape system according to claim 1 is characterized in that: The transfer platform system (3) comprises a transfer platform telescopic guide rail (303) and a transfer platform body (301); The transfer platform telescopic guide rail (303) is fixedly connected to the main frame (1), and one end of the guide rail extends in the direction of the derrick (9); The transfer platform body (301) is slidably connected to the transfer platform telescopic guide rail (303), and the transfer platform body (301) can move along the transfer platform telescopic guide rail (303) to move away from or close to the derrick (9).

3. The self-lifting and lowering two-layer platform of a workover rig integrating a transfer platform, a floating platform and an escape system according to claim 2 is characterized in that: The transfer platform system (3) further comprises a transfer platform telescopic oil cylinder (302); The fixed end of the transfer platform telescopic oil cylinder (302) is hinged to the transfer platform telescopic guide rail (303), and the telescopic end is hinged to the transfer platform body (301).

4. The self-lifting and lowering two-layer platform of a workover rig integrating a transfer platform, a floating platform and an escape system according to claim 1 is characterized in that: The floating platform system (4) comprises a floating platform telescopic guide rail (403) and a floating platform body (401); The floating platform telescopic guide rail (403) is fixedly connected to the main frame (1); The floating platform body (401) is slidably connected to the floating platform telescopic guide rail (403), and the floating platform body (401) can move along the floating platform telescopic guide rail (403) to move away from or close to one side of the main frame (1).

5. The self-lifting and lowering two-layer platform of a workover rig integrating a transfer platform, a floating platform and an escape system according to claim 4 is characterized in that: The floating platform system (4) also includes a floating platform telescopic cylinder (402); The fixed end of the floating platform telescopic oil cylinder (402) is hinged to the floating platform telescopic guide rail (403), and the telescopic end is hinged to the floating platform body (401).

6. The self-lifting and lowering two-layer platform of a workover rig integrating a transfer platform, a floating platform and an escape system according to claim 1, characterized in that: The escape system (5) comprises: an escape door (501), an anti-fall bracket (504), an upper guide rail of the anti-fall bracket (507), an escape system fixed pulley (509), an escape steel rope (515) and a sliding assembly; wherein: The escape door (501) is arranged at a middle position of the auxiliary frame (2), is fixedly connected to the auxiliary frame (2), and has one end hinged to the main frame body (1); The anti-fall bracket (504) is arranged at the other end of the escape door (501) and is hinged or pin-connected to the escape door (501); One end of the anti-fall bracket upper guide rail (507) is fixedly connected to the anti-fall bracket (504), and the anti-fall bracket upper guide rail (507) is connected to the sliding assembly rolling pair; The escape system fixed pulley (509) is arranged near the top of the escape door (501), fixedly connected to the escape door (501), and hinged to the other end of the upper guide rail (507) of the anti-fall bracket; The escape steel rope (515) is connected to the escape system fixed pulley (509) and the sliding assembly rolling pair, and is used to be connected to the escape system ground driving wheel device (516) rolling pair.

7. The self-lifting and lowering two-layer platform of a workover rig integrating a transfer platform, a floating platform and an escape system according to claim 6, characterized in that: The sliding assembly comprises: a first pulley (508), an anti-fall connection frame (512), a connection pipe (513), a second pulley (514), a second pulley side plate (510) and a grip frame (511), wherein: The first pulley (508) and the second pulley (514) are both connected to the rolling pair of the escape steel rope (515); One end of the anti-fall connection frame (512) is fixedly connected to the first pulley (508), and the other end is hinged to one end of the connection pipe (513); The other end of the connecting pipe (513) is hinged to the handle frame (511); One end of the second pulley side plate (510) is fixedly connected to the second pulley (514), and the other end is fixedly connected to the handle frame (511).

8. The self-lifting and lowering two-layer platform of a workover rig integrating a transfer platform, a floating platform and an escape system according to claim 1, characterized in that: It also includes a driller's opposite side railing (6), a driller's side railing (7) and a telescopic tongue platform (8); The driller's side railing (6) is arranged on one side of the main frame (1), and its end is hinged to the floating platform system (4); The driller side railing (7) is arranged on the other side of the main frame (1), and the end portion is hinged to the main frame (1); The fixed end of the telescopic tongue platform (8) is fixedly connected to the other end of the main frame (1).

9. The self-lifting and lowering two-layer platform of a workover rig integrating a transfer platform, a floating platform and an escape system according to claim 1, characterized in that: The self-lifting system (10) comprises a winch; The winch is fixedly connected to the auxiliary frame (2), and is connected to a pulley fixed on the auxiliary frame (2) and a pulley fixed on the derrick (9) via a connecting rope to form a rolling pair.

10. The self-lifting and lowering two-layer platform of a workover rig integrating a transfer platform, a floating platform and an escape system according to claim 9, characterized in that: The winch comprises a hydraulic winch, a pneumatic winch or an explosion-proof electric winch.

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