阅读说明：本技术 一种海上设施人员穿梭转移吊篮装置及其使用方法 (Offshore facility personnel shuttling transfer hanging basket device and use method thereof ) 是由 余纪宝 于 2021-02-03 设计创作，主要内容包括：本发明公开了一种海上设施人员穿梭转移吊篮装置及其使用方法,包括底板和侧板。所述底板呈八边形设置,所述底板的顶面靠近边沿处间隔固定连接有四个侧板,所述侧板靠近顶面呈弧形设置,四个所述侧板的顶面上固定连接有同一个顶板。本发明通过设置有缓冲机构和平衡机构,通过缓冲机构的作用可以实现对吊篮转移过程中人员座椅进行缓冲,有效的避免震动对内部人员的影响,使用舒适,且通过平衡机构可以实现对本装置的高效稳定,有效的避免本装置在海上出现倾倒的可能,提高使用的稳定安全性；通过设置有安全带,通过安全带可以实现对内部人员的固定,避免人员出现危险,防护效果好。本发明具有不易损坏、安全性高和防护好的优点。(The invention discloses a shuttle transferring hanging basket device for personnel on an offshore facility and a using method thereof. The bottom plate is the octagon setting, the top surface of bottom plate is close to four curb plates of border department interval fixedly connected with, the curb plate is close to the top surface and is the arc setting, four same roof of fixedly connected with on the top surface of curb plate. The hanging basket transfer device is provided with the buffer mechanism and the balance mechanism, the personnel seat in the hanging basket transfer process can be buffered through the action of the buffer mechanism, the influence of vibration on internal personnel is effectively avoided, the use is comfortable, the high-efficiency stability of the hanging basket transfer device can be realized through the balance mechanism, the possibility of toppling of the hanging basket transfer device at sea is effectively avoided, and the use stability and safety are improved; through being provided with the safety belt, can realize fixing to inside personnel through the safety belt, avoid personnel dangerous, the protecting effect is good. The invention has the advantages of difficult damage, high safety and good protection.)

1. A marine facility personnel shuttle transfer hanging flower basket device, includes bottom plate (1), its characterized in that: the bottom plate (1) is arranged in an octagonal shape, the top surface of the bottom plate (1) is close to four side plates (2) fixedly connected at intervals at the edge, the side plates (2) are close to the top surface and arranged in an arc shape, the top surface of the four side plates (2) is fixedly connected with a same top plate (3), a rolling door (4) is arranged between every two adjacent side plates (2), handles (5) are fixedly connected to the inner side and the outer side of the rolling door (4), a plurality of steel wire ropes (6) are uniformly distributed and fixedly connected to the top plate (3), one ends, far away from the top plate (3), of the plurality of steel wire ropes (6) are fixedly connected with a same lifting ring (7), a fixing mechanism (8) is arranged in the lifting ring (7), a rectangular column (9) is fixedly connected to the center of the top surface of the bottom plate (1), and four seats, safety belts (11) are fixed on the seats (10) at a certain distance, the side wall of one side of the seats (10) close to the rectangular column (9) is fixedly connected with a fixed block (12), the fixed block (12) is provided with a buffer mechanism (38), the outer side walls of the rectangular columns (9) are provided with vertical grooves (13), the fixed block (12) is movably connected with the vertical groove (13), the bottom surface of the fixed block (12) is fixedly connected with a fifth spring (14), the bottom end of the fifth spring (14) is fixedly connected with the bottom surface of the vertical groove (13), a round hole is arranged at the center of the bottom surface of the rectangular column (9), the bottom surface of the round hole penetrates through the bottom plate (1), a connecting rod (15) is arranged in the round hole, a round hole is extended from the bottom end of the connecting rod (15) to be fixedly connected with a balance mechanism (16), the bottom surface of the bottom plate (1) is uniformly and fixedly connected with a plurality of buoyancy barrels (17).

2. An offshore facility personnel shuttle basket apparatus as claimed in claim 1, wherein: fixed establishment (8) are including clamp plate (18), equal swing joint has thin pole (19) on clamp plate (18) keep away from the lateral wall of rings (7) center one side, the lateral wall is close to the equal swing joint of top surface department and has drum (20) about rings (7), thin pole (19) are kept away from clamp plate (18) one end and are inserted the first spring (21) of drum (20) fixedly connected with, swing joint between thin pole (19) and drum (20), first spring (21) other end and drum (20) bottom surface fixed connection.

3. An offshore facility personnel shuttle basket apparatus as claimed in claim 1, wherein: buffer gear (38) are including through-hole (22), through-hole (22) are the setting of worker's shape, through-hole (22) run through fixed block (12) both sides lateral wall and set up, two baffle (23) of through-hole (22) interior symmetry fixedly connected with, equal swing joint has movable rod (24), two on baffle (23) be provided with second spring (25) between baffle (23), the both ends of second spring (25) respectively with movable rod (24) fixed connection of both sides, second spring (25) one end is kept away from in movable rod (24) and is extended through-hole (22) fixedly connected with latch (26), latch (26) are conical setting, evenly distributed has seted up a plurality of draw-in groove (27) on the both sides lateral wall of perpendicular groove (13), the setting of matcing each other between draw-in groove (27) and latch (26).

4. An offshore facility personnel shuttle basket apparatus as claimed in claim 1, wherein: connecting rod (15) include montant (29), the top surface center fixedly connected with montant (29) of round hole, the cover is equipped with round shell (30) on the lateral wall of montant (29), swing joint between round shell (30) and the round hole, swing joint between montant (29) and round shell (30), the bottom fixedly connected with third spring (31) of montant (29), the third spring (31) other end and round shell (30) inner chamber bottom surface fixed connection.

5. An offshore facility personnel shuttle basket apparatus as claimed in claim 1, wherein: balance mechanism (16) includes shell (32), shell (32) are the cross setting, shell (32) inner chamber swing joint has cross plate (33), evenly distributed fixedly connected with a plurality of fourth spring (34) on the top surface of cross plate (33), the other end of fourth spring (34) and the inner chamber top surface fixed connection of shell (32), the top surface of shell (32) is close to one side fixedly connected with round bar (35), the deep hole has been seted up on the bottom surface of bottom plate (1), shell (32) one end is kept away from in round bar (35) runs through the deep hole, the movable groove has been seted up on the lateral wall that round bar (35) are close to the top, bolt (36) have been inserted in the movable groove.

6. An offshore facility personnel shuttle basket apparatus as claimed in claim 1, wherein: side grooves are formed in the side walls of the four side plates (2), and glass (37) is fixedly connected in the side grooves.

7. An offshore facility personnel shuttle basket apparatus as claimed in claim 2, wherein: two be "people" font setting between clamp plate (18), all fixedly connected with slipmat (28) on the lateral wall of clamp plate (18) near rings (7) center one side.

8. Use of an offshore unit personnel shuttle basket apparatus according to any of claims 1 to 7, comprising the steps of:

s1: when the device is used, firstly, an operator enters the device, sits on the seat (10), is fixed by the safety belt (11), and pulls the rolling door (4) by the handle (5), so that the rolling door (4) can realize the sealing operation of the device;

s2: then, a hook of an external hoisting device is placed inside the hoisting ring (7), the external hook moves to the upper side of the hoisting ring (7) through the pulling of the hoisting device, and the thin rod (19) is pushed to move through the first spring (21), so that the thin rod (19) pushes the pressing plate (18) to move to press the hook tightly, the external hook is fixed, and the looseness is avoided;

s3: the device is hoisted by an external hoisting device, transferred to the sea surface by the hoisting device, and floated on the sea surface under the action of the buoyancy cylinder (17), so that the device is convenient for operators to operate and use;

s4: after the device is placed at a designated position on the sea surface, an operator in the device can pull out the plug pin (36), the connecting rod (15) can be extended under the action of the third spring (31), and the shell (32) and the cross plate (33) are inserted into the sea water, so that the stability of the device can be effectively improved, and the device is convenient for the operator to operate and use;

s5: in the transferring process or the operation process, the latch (26) is enabled to continuously move in the clamping groove (27) under the action of the fifth spring (14), so that the vibration of the seat (10) and the device can be buffered, and the inconvenience in operation of operators caused by shaking can be effectively avoided;

s6: then the operator unlocks the safety belt (11), and the rolling door (4) is opened through the handle (5), so that the operator can be conveniently transferred and operated;

s7: after the operation is finished, the operator returns to the inside of the device, the rolling door (4) is closed through the handle (5), the operator sits back to the seat (10) again, the fixation is realized through the safety belt (11), and the operator is brought back by the external hoisting device.

Technical Field

The invention relates to the technical field of ocean engineering, in particular to a shuttle transfer hanging basket device for personnel on an offshore facility and a using method thereof.

Background

In the technical field of ocean engineering, operators need to be transferred or medical assistance operation of the operators needs to be carried out in many times, and at the moment, a hanging basket needs to be used for operation. At present, the hanging flower basket that domestic offshore facilities used all is rope and wire rope and compiles the material, short service life, the rope is ageing fast, inconvenience and danger very to marine use, be unfavorable for the use, and inside buffering and the safety measure of lacking of marine hanging flower basket of prior art, operating personnel is at the basket edge of standing, or the bottom, do not have any safety protection, it is very dangerous, there is great potential safety hazard, and is exactly, prior art's marine hanging flower basket is open design, very easily receive the influence of environment such as marine low temperature, can not satisfy the hanging flower basket and work under the low temperature environment, if south Pole environment temperature below-20 degrees personnel shift the transportation, it is extremely inconvenient to use.

Disclosure of Invention

The invention aims to overcome the defects of easy damage, great potential safety hazard and inconvenient use in the prior art, and provides a shuttle transfer hanging basket device for personnel in offshore facilities and a using method thereof. The device for shuttling and transferring the hanging basket of the offshore facility personnel and the using method thereof have the characteristics of difficult damage, high safety, good protection and the like.

In order to achieve the purpose, the invention provides the following technical scheme: a hanging basket device for shuttling and transferring personnel at offshore facilities comprises a bottom plate, wherein the bottom plate is arranged in an octagonal shape, four side plates are fixedly connected to the top surface of the bottom plate at intervals close to the edges, the side plates are arranged in an arc shape close to the top surface, the same top plate is fixedly connected to the top surfaces of the four side plates, a rolling door is arranged between every two adjacent side plates, handles are fixedly connected to the inner side and the outer side of the rolling door, a plurality of steel wire ropes are uniformly distributed and fixedly connected to the top plate, the ends, away from the top plate, of the plurality of steel wire ropes are fixedly connected with the same lifting ring, a fixing mechanism is arranged in the lifting ring, a rectangular column is fixedly connected to the center of the top surface of the bottom plate, four seats are uniformly distributed on the outer side wall of the rectangular column, safety, be provided with buffer gear on the fixed block, perpendicular groove has all been seted up on the lateral wall of rectangle post, fixed block and perpendicular swing joint between the groove, fixedly connected with fifth spring on the bottom surface of fixed block, the bottom of fifth spring and the bottom surface fixed connection who erects the groove, the round hole has been seted up at the bottom surface center of rectangle post, the bottom surface of round hole runs through the bottom plate, be provided with the connecting rod in the round hole, round hole fixedly connected with balance mechanism is extended to the bottom of connecting rod, evenly distributed fixedly connected with a plurality of buoyancy section of thick bamboo on the bottom surface of bottom plate.

Preferably, fixed establishment includes the clamp plate, equal swing joint has the pin on the lateral wall that rings center one side was kept away from to the clamp plate, the equal swing joint of top surface department is close to the lateral wall about rings has the drum, the pin is kept away from clamp plate one end and is inserted the first spring of drum fixedly connected with, swing joint between pin and the drum, the first spring other end and drum bottom surface fixed connection.

Preferably, buffer gear includes the through-hole, the through-hole is the worker's shape setting, the through-hole runs through the setting of fixed block both sides lateral wall, two baffles of symmetry fixedly connected with in the through-hole, equal swing joint has the movable rod on the baffle, two be provided with the second spring between the baffle, the both ends of second spring respectively with the movable rod fixed connection of both sides, the movable rod is kept away from second spring one end and is extended through-hole fixedly connected with latch, the latch is conical setting, evenly distributed has seted up a plurality of draw-in groove on the both sides lateral wall in perpendicular groove, the setting of matcing each other between draw-in groove and the latch.

Preferably, the connecting rod includes the montant, the top surface center fixedly connected with montant of round hole, the cover is equipped with the round shell on the lateral wall of montant, swing joint between round shell and the round hole, swing joint between montant and the round shell, the bottom fixedly connected with third spring of montant, the third spring other end and round shell inner chamber bottom surface fixed connection.

Preferably, the balance mechanism comprises a shell, the shell is in a cross shape, an inner cavity of the shell is movably connected with a cross plate, a plurality of fourth springs are uniformly distributed on the top surface of the cross plate and fixedly connected with the other end of each fourth spring and the inner cavity top surface of the shell, the top surface of the shell is close to one side of a round bar, a deep hole is formed in the bottom surface of the bottom plate, one end of the round bar, far away from the shell, penetrates through the deep hole, a movable groove is formed in the side wall, close to the top end of the round bar, and a bolt is inserted into the movable groove.

Preferably, side grooves are formed in the side walls of the four side plates, and glass is fixedly connected in the side grooves.

Preferably, two be "people" font setting between the clamp plate, equal fixedly connected with slipmat on the clamp plate is close to rings center one side's the lateral wall.

A use method of an offshore facility personnel shuttle hanging basket device comprises the following steps:

s1: when the device is used, firstly, an operator enters the device, sits on the seat, fixes the operator through the safety belt, and pulls the rolling door through the handle, so that the rolling door realizes the closed operation of the device;

s2: then, a hook of an external hoisting device is placed inside the hoisting ring, the external hook moves to the upper side of the hoisting ring through the pulling of the hoisting device, the thin rod is pushed to move through the first spring, the thin rod pushes the pressing plate to move to press the hook tightly, the external hook is fixed, and the looseness is avoided;

s3: the device is hoisted by an external hoisting device, transferred to the sea surface by the hoisting device, and floated on the sea surface under the action of the buoyancy cylinder, so that an operator can conveniently operate and use the device;

s4: after the device is placed at a designated position on the sea surface, an operator in the device can pull out the plug pin, and the connecting rod can be extended under the action of the third spring, so that the shell and the cross plate are inserted into the sea water, the stability of the device can be effectively improved, and the device is convenient for the operator to operate and use;

s5: in the transferring process or during operation, the latch continuously moves in the clamping groove under the action of the fifth spring, so that the vibration of the seat and the device can be buffered, and the inconvenience in operation of operators caused by shaking can be effectively avoided;

s6: then the operator unlocks the safety belt, and the rolling door is opened through the handle, so that the operator can be conveniently transferred and operated;

s7: after the operation is finished, the operator returns to the interior of the device, the rolling door is closed through the handle, the operator sits back to the seat again, the seat is fixed through the safety belt, and the operator is brought back through the external lifting device.

Compared with the prior art, the invention has the beneficial effects that:

1. the hanging basket transfer device is provided with the buffer mechanism and the balance mechanism, the personnel seat in the hanging basket transfer process can be buffered through the action of the buffer mechanism, the influence of vibration on internal personnel is effectively avoided, the use is comfortable, the high-efficiency stability of the hanging basket transfer device can be realized through the balance mechanism, the possibility of toppling of the hanging basket transfer device at sea is effectively avoided, and the use stability and safety are improved;

2. by arranging the safety belt, the fixing of internal personnel can be realized through the safety belt, the danger of the personnel is avoided, and the protection effect is good;

3. the side plate and the rolling door are arranged, the safety and the reliability of the device are effectively improved through the rope of the side plate in the prior art, the isolation between the inside and the outside environment can be realized through the action of the rolling door, the influence of the low-temperature environment and the like on the inside of the device is avoided, and the using effect is good;

4. through being provided with fixed establishment, can realize through fixed establishment with outside hoisting accessory between fixed, the condition of rocking or breaking away from when effectual reduction hoist and mount improves the security of this device.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic view of the structure of the plane A-A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of FIG. 1 at B according to the present invention;

FIG. 4 is an enlarged view of FIG. 2 at C of the present invention;

fig. 5 is a schematic view of the internal structure of the balancing mechanism of the present invention.

Reference numbers in the figures: 1. a base plate; 2. a side plate; 3. a top plate; 4. rolling doors; 5. a handle; 6. a wire rope; 7. a hoisting ring; 8. a fixing mechanism; 9. a rectangular column; 10. a seat; 11. a seat belt; 12. a fixed block; 13. a vertical slot; 14. a fifth spring; 15. a connecting rod; 16. a balancing mechanism; 17. a buoyancy cylinder; 18. pressing a plate; 19. a thin rod; 20. a cylinder; 21. a first spring; 22. a through hole; 23. a partition plate; 24. a movable rod; 25. a second spring; 26. clamping teeth; 27. a card slot; 28. a non-slip mat; 29. a vertical rod; 30. a round shell; 31. a third spring; 32. a housing; 33. a cross plate; 34. a fourth spring; 35. a round bar; 36. a bolt; 37. glass; 38. a buffer mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a shuttle-transferring hanging basket device for personnel in offshore facilities comprises a bottom plate 1, wherein the bottom plate 1 is arranged in an octagonal shape, four side plates 2 are fixedly connected to the top surface of the bottom plate 1 at intervals close to the edges, the side plates 2 are arranged in an arc shape close to the top surface, the same top plate 3 is fixedly connected to the top surfaces of the four side plates 2, a rolling door 4 is arranged between every two adjacent side plates 2, handles 5 are fixedly connected to the inner side and the outer side of the rolling door 4, a plurality of steel wire ropes 6 are uniformly distributed and fixedly connected to the top plate 3, one end, far away from the top plate 3, of each steel wire rope 6 is fixedly connected with the same hanging ring 7, a fixing mechanism 8 is arranged in each hanging ring 7, each fixing mechanism 8 comprises a pressing plate 18, the two pressing plates 18 are arranged in a herringbone shape, anti-skid pads 28 are fixedly connected to the side walls of the pressing plates 18, the left side wall and the right side wall of the lifting ring 7 close to the top surface are movably connected with a cylinder 20, one end of a thin rod 19 far away from a pressing plate 18 is inserted into the cylinder 20 and fixedly connected with a first spring 21, the thin rod 19 is movably connected with the cylinder 20, the other end of the first spring 21 is fixedly connected with the bottom surface of the cylinder 20, the fixing of a hook of an external lifting device can be effectively realized, so that the fixing is firm, the falling-off danger of the device is effectively avoided, the using effect is good, the top surface center of the bottom plate 1 is fixedly connected with a rectangular column 9, four seats 10 are uniformly distributed on the outer side wall of the rectangular column 9, safety belts 11 are uniformly fixed on the seats 10, a fixed block 12 is fixedly connected on the side wall of the seat 10 close to one side of the rectangular column 9, a buffer mechanism 38 is arranged on the fixed block 12, the buffer, two clapboards 23 are symmetrically and fixedly connected in the through hole 22, a movable rod 24 is movably connected on each clapboard 23, a second spring 25 is arranged between the two clapboards 23, two ends of the second spring 25 are respectively and fixedly connected with the movable rods 24 on two sides, one end of each movable rod 24 far away from the second spring 25 extends out of the through hole 22 to be fixedly connected with a latch 26, the latch 26 is in a conical arrangement, a plurality of clamping grooves 27 are uniformly distributed on the side walls on two sides of the vertical groove 13, the clamping grooves 27 and the latch 26 are mutually matched and arranged, the buffer of the seat 10 can be realized, the comfort of a passenger is improved, the vertical grooves 13 are all arranged on the outer side wall of the rectangular column 9, the fixed block 12 is movably connected with the vertical grooves 13, a fifth spring 14 is fixedly connected on the bottom surface of the fixed block 12, the bottom end of the fifth spring 14 is fixedly connected with the bottom surface of the vertical, the bottom surface of the round hole penetrates through the bottom plate 1, the connecting rod 15 is arranged in the round hole, the connecting rod 15 comprises a vertical rod 29, the center of the top surface of the round hole is fixedly connected with the vertical rod 29, the outer side wall of the vertical rod 29 is sleeved with a round shell 30, the round shell 30 is movably connected with the round hole, the vertical rod 29 is movably connected with the round shell 30, the bottom end of the vertical rod 29 is fixedly connected with a third spring 31, the other end of the third spring 31 is fixedly connected with the bottom surface of the inner cavity of the round shell 30, the depth of the balance mechanism 16 can be changed, the size of the device is reduced, the use is convenient, the round hole is fixedly connected with a balance mechanism 16 by extending out of the bottom end of the connecting rod 15, the balance mechanism 16 comprises a shell 32, the shell 32 is arranged in a cross shape, the inner cavity of the shell 32 is movably connected, the top surface of shell 32 is close to one side fixedly connected with round bar 35, the deep hole has been seted up on the bottom surface of bottom plate 1, shell 32 one end is kept away from to round bar 35 and the deep hole is run through to round bar 35, movable groove has been seted up on the lateral wall that round bar 35 is close to the top, the interpolation has bolt 36 in the movable groove, improve the stability of this device, excellent in use effect, a plurality of buoyancy section of thick bamboo 17 of evenly distributed fixedly connected with on the bottom surface of bottom plate 1, the side channel has all been seted up on the lateral wall of four curb plates 2, equal fixedly connected with glass 37 in the side channel.

A use method of an offshore facility personnel shuttle hanging basket device comprises the following steps:

s1: when the device is used, firstly, an operator enters the device, sits on the seat 10, is fixedly operated through the safety belt 11, and pulls the rolling door 4 through the handle 5, so that the rolling door 4 can realize the sealing operation of the device;

s2: then, a hook of an external hoisting device is placed inside the hoisting ring 7, the external hook moves to the upper side of the hoisting ring 7 by pulling of the hoisting device, the thin rod 19 is pushed to move by the first spring 21, the thin rod 19 pushes the pressing plate 18 to move to press the hook tightly, the external hook is fixed, and looseness is avoided;

s3: the device is hoisted by an external hoisting device, transferred to the sea surface by the hoisting device, and floated on the sea surface under the action of the buoyancy cylinder 17, so that the device is convenient for operators to operate and use;

s4: after the device is placed at a designated position on the sea surface, an operator in the device can pull out the plug pin 36, and the connecting rod 15 can be extended under the action of the third spring 31, so that the shell 32 and the cross plate 33 are inserted into the sea water, the stability of the device can be effectively improved, and the device is convenient for the operator to operate and use;

s5: in the transferring process or the operation process, the latch 26 is enabled to continuously move in the clamping groove 27 under the action of the fifth spring 14, so that the vibration of the seat 10 and the device can be buffered, and the inconvenience in operation of an operator caused by shaking can be effectively avoided;

s6: then the operator unlocks the safety belt 11, and the rolling door 4 is opened through the handle 5, so that the operator can conveniently transfer and operate;

s7: when the operation is completed, the operator returns to the inside of the device, the rolling door 4 is closed by the handle 5, the operator sits back on the seat 10 again, the fixation is realized by the safety belt 11, and the operator is brought back by the external hoisting device.

The working principle is as follows: when the device is used, firstly, an operator enters the device, sits on the seat 10, and is fixed by the safety belt 11, then the rolling door 4 is pulled by the handle 5, so that the rolling door 4 realizes the sealing operation of the device, then the hook of the external lifting device is placed in the lifting ring 7, the external hook moves to the upper side of the lifting ring 7 by the pulling of the lifting device, the thin rod 19 is pushed by the first spring 21 to move, so that the thin rod 19 pushes the pressing plate 18 to move to press the hook tightly, the fixation of the external hook is realized, the looseness is avoided, the device is lifted by the external lifting device, the device is transferred to the sea surface by the lifting device, the device can float on the sea surface by the action of the buoyancy barrel 17, the device is convenient for the operator to operate and use, after the device is placed at the designated position of the sea surface, the internal operator can pull out the bolt 36, the connecting rod 15 can be extended under the action of the third spring 31, the shell 32 and the cross plate 33 can be inserted into the seawater, the stability of the device can be effectively improved, the operation and use of the operator are convenient, in the transfer process or during operation, the latch 26 can continuously move in the clamping groove 27 under the action of the fifth spring 14, the buffer of the vibration of the seat 10 and the device can be realized, the inconvenience in operation of the operator caused by shaking can be effectively avoided, then the safety belt 11 is untied by the operator, the rolling door 4 is opened through the handle 5, the transfer and operation of the operator can be conveniently realized, after the operation is completed, the operator returns to the inside of the device, the rolling door 4 is closed through the handle 5, the operator sits back to the seat 10 again, and the fixation is realized through the safety belt 11, the operator is brought back by means of an external hoisting device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.