阅读说明：本技术 一种海洋工程用吊运系统 (Handling system for ocean engineering ) 是由 罗厚镇 于 2021-01-09 设计创作，主要内容包括：本发明属于海洋工程技术领域,尤其是一种海洋工程用吊运系统,其包括固定板,固定板的底部固定安装有漂浮板,固定板的上方设有平台,固定板的顶部固定安装有第一电机,第一电机的输出轴上固定安装有转杆,固定板上开设有转动腔,转动腔的内壁上转动连接有四个对称设置的套管,固定板的左右两侧和前后两侧均滑动连接有固定杆,固定杆与对应的套管螺纹连接,固定杆的一端固定安装有连接板,连接板的底部固定安装有连接杆,连接杆的底端固定安装有稳定球,平台的顶部开设有两个对称设置的滑动槽,滑动槽的内壁上转动连接有螺杆。本发明操作简单,使用方便,能够在装置吊装物料时进行稳定平台,同时还能够防止海风对装置的吹翻,便于人们使用。(The invention belongs to the technical field of ocean engineering, and particularly relates to a hoisting system for ocean engineering, which comprises a fixed plate, wherein a floating plate is fixedly arranged at the bottom of the fixed plate, a platform is arranged above the fixed plate, a first motor is fixedly arranged at the top of the fixed plate, a rotating rod is fixedly arranged on an output shaft of the first motor, a rotating cavity is formed in the fixed plate, four symmetrically-arranged sleeves are rotatably connected to the inner wall of the rotating cavity, fixed rods are slidably connected to the left side, the right side, the front side and the rear side of the fixed plate respectively, the fixed rods are in threaded connection with the corresponding sleeves, a connecting plate is fixedly arranged at one end of each fixed rod, a connecting rod is fixedly arranged at the bottom of each connecting rod, a stabilizing ball is fixedly arranged at the bottom of each connecting rod, two. The device is simple to operate and convenient to use, can stabilize the platform when the device hoists materials, and can prevent sea wind from blowing over the device, so that the device is convenient to use.)

1. The hoisting system for ocean engineering comprises a fixing plate (1) and is characterized in that a floating plate (13) is fixedly mounted at the bottom of the fixing plate (1), a platform (2) is arranged above the fixing plate (1), a first motor (3) is fixedly mounted at the top of the fixing plate (1), a rotating rod (4) is fixedly mounted on an output shaft of the first motor (3), a rotating cavity (6) is formed in the fixing plate (1), four symmetrically-arranged sleeves (5) are rotatably connected to the inner wall of the rotating cavity (6), fixing rods (9) are slidably connected to the left side, the right side, the front side and the rear side of the fixing plate (1), the fixing rods (9) are in threaded connection with the corresponding sleeves (5), a connecting plate (14) is fixedly mounted at one end of each fixing rod (9), and a connecting rod (15) is fixedly mounted at the bottom of the connecting plate (14), the bottom fixed mounting of connecting rod (15) has stabilizer ball (16), sliding tray (24) that two symmetries set up are seted up at the top of platform (2), rotate on the inner wall of sliding tray (24) and be connected with screw rod (26), fixed mounting has second motor (25) on the left side inner wall of one sliding tray (24) in two sliding tray (24), the output shaft and the screw rod (26) fixed connection that corresponds of second motor (25), threaded connection has removal seat (27) on screw rod (26), and the top fixed mounting of two removal seats (27) has hoist device (28), sliding connection has four bracing pieces (31) that the symmetry set up on platform (2), and two bracing pieces (31) are connected with screw rod (26) transmission that corresponds, the bottom of bracing piece (31) rotates with fixed plate (1) to be connected, the bottom of fixed plate (1) rotates and is connected with lead screw (19) that two symmetries set up, the screw rod (19) is connected with connecting blocks (20) in a threaded manner, and the two connecting blocks (20) are fixedly provided with the same water baffle (21).

2. The hoisting system for ocean engineering according to claim 1, wherein the bottom end of the rotating rod (4) is fixedly provided with a first bevel gear (7), one end of the sleeve (5) is fixedly provided with a second bevel gear (8), and the first bevel gear (7) and the four second bevel gears (8) are meshed with each other.

3. The hoisting system for ocean engineering according to claim 1, wherein the sleeve (5) is fixedly sleeved with a driving bevel gear (17), the top end of the screw rod (19) is fixedly provided with a driven bevel gear (18), and the driving bevel gear (17) is meshed with the corresponding driven bevel gear (18).

4. The hoisting system for ocean engineering as claimed in claim 1, wherein the fixing plate (1) is provided with positioning holes (10) at left and right sides and front and rear sides, the positioning holes (10) are slidably connected with the corresponding fixing rods (9), the fixing rods (9) are provided with limiting grooves (11) at upper and lower sides, the top inner wall and the bottom inner wall of the positioning holes (10) are both fixedly provided with limiting blocks (12), and the limiting blocks (12) are slidably connected with the limiting grooves (11).

5. The handling system for ocean engineering according to claim 1, wherein the screw (26) is fixedly sleeved with a chain wheel (29), and the two chain wheels (29) are engaged with the same chain (30).

6. The hoisting system for ocean engineering according to claim 1, wherein the right side inner wall of the sliding groove (24) is provided with a rotating groove (34), the inner wall of the rotating groove (34) is fixedly provided with an outer ring of a bearing (35), and an inner ring of the bearing (35) is fixedly connected with the corresponding screw rod (26).

7. The hoisting system for ocean engineering according to claim 1, wherein the screw rod (26) is fixedly sleeved with two symmetrically arranged worms (32), the support rod (31) is in threaded connection with a worm wheel (33), and the worms (32) are meshed with the corresponding worm wheels (33).

8. The hoisting system for ocean engineering according to claim 7, wherein the inner wall of the bottom of the sliding groove (24) is provided with two symmetrically arranged annular sliding grooves (39), the inner wall of the annular sliding grooves (39) is connected with two symmetrically arranged positioning blocks (40) in a sliding manner, and the positioning blocks (40) are fixedly connected with the worm wheel (33).

9. The hoisting system for ocean engineering according to claim 1, wherein the top of the fixing plate (1) is provided with four symmetrically arranged connecting grooves (36), the inner wall of each connecting groove (36) is fixedly provided with a sliding rod (37), the inner wall of each connecting groove (36) is slidably connected with a connecting seat (38), each connecting seat (38) is slidably connected with the corresponding sliding rod (37), and each connecting seat (38) is rotatably connected with the corresponding supporting rod (31).

10. The hoisting system for ocean engineering according to claim 1, wherein four symmetrically arranged positioning rods (23) are fixedly installed at the bottom of the floating plate (13), a baffle (22) is fixedly installed at the bottom end of each positioning rod (23), and each positioning rod (23) is in sliding connection with the corresponding water baffle (21).

Technical Field

The invention relates to the technical field of ocean engineering, in particular to a hoisting system for ocean engineering.

Background

The ocean crane is mainly used for hoisting equipment in ocean engineering, is an important device for loading and unloading goods and hoisting equipment in ocean engineering, and has high requirements on safety reliability, maintainability, wind resistance and corrosion resistance. Because the sea surface environment is severe, the safety factor of the adoption is generally ten times, and during offshore operation, sea waves can influence the stability of the sea surface environment and have great influence on hoisting.

When the existing ocean crane is used for hoisting, sea surface stormy waves are large, the sea waves impact the ship body to cause shaking of the crane, the influence on hoisting operation is caused, and meanwhile, the ship body can be blown by sea wind in the hoisting process, so that the stability is not ideal, and the hoisting system for ocean engineering is provided.

Disclosure of Invention

The invention aims to solve the defects that when the existing ocean crane is used for lifting, sea surface stormy waves are large, the sea waves impact a ship body to cause the crane to shake, the lifting operation is influenced, and simultaneously, the sea wind blows the ship body in the lifting process, so that the stability is not ideal.

In order to achieve the purpose, the invention adopts the following technical scheme:

a hoisting system for ocean engineering comprises a fixed plate, wherein a floating plate is fixedly installed at the bottom of the fixed plate, a platform is arranged above the fixed plate, a first motor is fixedly installed at the top of the fixed plate, a rotating rod is fixedly installed on an output shaft of the first motor, a rotating cavity is formed in the fixed plate, four symmetrically-arranged sleeves are rotatably connected to the inner wall of the rotating cavity, fixed rods are slidably connected to the left side, the right side, the front side and the rear side of the fixed plate respectively and are in threaded connection with the corresponding sleeves, a connecting plate is fixedly installed at one end of each fixed rod, a connecting rod is fixedly installed at the bottom of the connecting plate, a stabilizing ball is fixedly installed at the bottom end of each connecting rod, two symmetrically-arranged sliding grooves are formed in the top of the platform, a screw rod is rotatably connected to the inner wall of each sliding groove, and a second motor, the output shaft of second motor and the screw rod fixed connection who corresponds, threaded connection has the removal seat on the screw rod, and two top fixed mounting who removes the seat have hoist device, sliding connection has the bracing piece that four symmetries set up on the platform, and two bracing pieces are connected with the screw rod transmission that corresponds, the bottom and the fixed plate of bracing piece rotate to be connected, the bottom of fixed plate is rotated and is connected with the lead screw that two symmetries set up, and threaded connection has the connecting block on the lead screw, and fixed mounting has same breakwater on two connecting blocks.

Preferably, the bottom end of the rotating rod is fixedly provided with a first bevel gear, one end of the sleeve is fixedly provided with a second bevel gear, the first bevel gear is meshed with the four second bevel gears, and the rotating rod can drive the four sleeves to rotate simultaneously through the mutual meshing of the first bevel gear and the four second bevel gears.

Preferably, fixed cover is equipped with initiative conical gear on the sleeve pipe, and the top fixed mounting of lead screw has driven conical gear, initiative conical gear and the driven conical gear intermeshing that corresponds, and pivoted sleeve pipe can drive the lead screw through the intermeshing of initiative conical gear and driven conical gear and rotate.

Preferably, the locating hole has all been seted up to the left and right sides and the front and back both sides of fixed plate, locating hole and corresponding dead lever sliding connection, and the upper and lower both sides of dead lever have all seted up the spacing groove, and equal fixed mounting has the stopper on the top inner wall of locating hole and the bottom inner wall, stopper and spacing groove sliding connection, and the sliding connection of spacing groove and stopper can carry on spacingly to the dead lever.

Preferably, the fixed cover is equipped with the sprocket on the screw rod, and the meshing has same chain on two sprockets, and the output shaft of second motor can drive two screw rods and rotate simultaneously through the intermeshing of two sprockets and chain.

Preferably, a rotating groove is formed in the inner wall of the right side of the sliding groove, an outer ring of the bearing is fixedly mounted on the inner wall of the rotating groove, the inner ring of the bearing is fixedly connected with the corresponding screw rod, and the bearing can stabilize the rotating state of the screw rod and reduce the friction force generated when the screw rod rotates.

Preferably, the fixed cover is equipped with the worm that two symmetries set up on the screw rod, and threaded connection has the worm wheel on the bracing piece, and the worm meshes with the worm wheel that corresponds mutually, and pivoted screw rod can drive the worm wheel through the intermeshing of worm and worm wheel and rotate to drive the bracing piece through the threaded connection of worm wheel and bracing piece and remove.

Preferably, set up the annular spout that two symmetries set up on the bottom inner wall of sliding tray, sliding connection has the locating piece of two symmetries settings on the inner wall of annular spout, locating piece and worm wheel fixed connection, and the rotation state of worm wheel can be stabilized to the sliding connection of annular spout and locating piece.

Preferably, four symmetrical spread grooves that set up are seted up at the top of fixed plate, and fixed mounting has the slide bar on the inner wall of spread groove, and sliding connection has the connecting seat on the inner wall of spread groove, connecting seat and slide bar sliding connection, and the connecting seat rotates with the bracing piece that corresponds to be connected, and the slide bar can be fixed a position the bracing piece with the sliding connection of connecting seat.

Preferably, the bottom of the floating plate is fixedly provided with four symmetrically arranged positioning rods, the bottom end of each positioning rod is fixedly provided with a baffle, each positioning rod is in sliding connection with the corresponding water baffle, and the positioning rods can be used for positioning the water baffles through the sliding connection with the water baffles.

Compared with the prior art, the invention has the advantages that:

(1) this scheme is owing to set up the intermeshing of first conical gear and four second conical gear for four sleeves of pivoted bull stick can be driven and four rotate, and drive the stabilizer ball through the threaded connection of sleeve pipe and dead lever and keep away from the fixed plate.

(2) Because the lead screw is connected with the transmission of the corresponding sleeve, and the lead screw is connected with the thread of the connecting block, the rotating sleeve can drive the lead screw to rotate, and further drive the water baffle to move downwards.

(3) Because the intermeshing of worm and worm wheel for pivoted screw rod can drive the worm wheel and rotate, and drives the bracing piece through the threaded connection of worm wheel and bracing piece and remove, and then drives the platform and carry out the angle change.

The device is simple to operate and convenient to use, can stabilize the platform when the device hoists materials, and can prevent sea wind from blowing over the device, so that the device is convenient to use.

Drawings

FIG. 1 is a schematic structural diagram of a lifting system for ocean engineering according to the present invention;

FIG. 2 is a schematic side view of a hoisting system for ocean engineering according to the present invention;

FIG. 3 is a schematic structural view of a cross section of a platform of the hoisting system for ocean engineering provided by the invention;

fig. 4 is a schematic structural diagram of part a of a hoisting system for ocean engineering according to the present invention;

fig. 5 is a schematic structural diagram of part B of a hoisting system for ocean engineering according to the present invention.

In the figure: 1. a fixing plate; 2. a platform; 3. a first motor; 4. a rotating rod; 5. a sleeve; 6. a rotation chamber; 7. a first bevel gear; 8. a second bevel gear; 9. fixing the rod; 10. positioning holes; 11. a limiting groove; 12. a limiting block; 13. a floating plate; 14. a connecting plate; 15. a connecting rod; 16. a stabilizer ball; 17. a driving bevel gear; 18. a driven bevel gear; 19. a screw rod; 20. connecting blocks; 21. a water baffle; 22. a baffle plate; 23. positioning a rod; 24. a sliding groove; 25. a second motor; 26. a screw; 27. a movable seat; 28. hoisting the device; 29. a sprocket; 30. a chain; 31. a support bar; 32. a worm; 33. a worm gear; 34. a rotating groove; 35. a bearing; 36. connecting grooves; 37. a slide bar; 38. a connecting seat; 39. an annular chute; 40. and (5) positioning the blocks.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.

Example one

Referring to fig. 1-5, a lifting system for ocean engineering comprises a fixed plate 1, a floating plate 13 is fixedly installed at the bottom of the fixed plate 1, a platform 2 is arranged above the fixed plate 1, a first motor 3 is fixedly installed at the top of the fixed plate 1, a rotating rod 4 is fixedly installed on an output shaft of the first motor 3, a rotating cavity 6 is formed in the fixed plate 1, four symmetrically-arranged sleeves 5 are rotatably connected to the inner wall of the rotating cavity 6, fixing rods 9 are slidably connected to the left side, the right side, the front side and the rear side of the fixed plate 1 respectively, the fixing rods 9 are in threaded connection with the corresponding sleeves 5, a connecting plate 14 is fixedly installed at one end of each fixing rod 9, a connecting rod 15 is fixedly installed at the bottom of the connecting plate 14, a stabilizing ball 16 is fixedly installed at the bottom end of the connecting rod 15, two symmetrically-arranged sliding grooves 24, fixed mounting has second motor 25 on the left side inner wall of a sliding tray 24 in two sliding trays 24, the output shaft of second motor 25 and the screw rod 26 fixed connection that corresponds, threaded connection has removal seat 27 on the screw rod 26, two top fixed mounting that remove seat 27 have hoist device 28, sliding connection has the bracing piece 31 that four symmetries set up on platform 2, two bracing pieces 31 are connected with the screw rod 26 transmission that corresponds, the bottom and the fixed plate 1 of bracing piece 31 rotate to be connected, the bottom of fixed plate 1 rotates the lead screw 19 that is connected with two symmetries and sets up, threaded connection has connecting block 20 on the lead screw 19, fixed mounting has same breakwater 21 on two connecting blocks 20.

In this embodiment, a first bevel gear 7 is fixedly mounted at the bottom end of the rotating rod 4, a second bevel gear 8 is fixedly mounted at one end of the sleeve 5, and the first bevel gear 7 is engaged with the four second bevel gears 8.

In this embodiment, the sleeve 5 is fixedly sleeved with a driving bevel gear 17, the top end of the screw rod 19 is fixedly provided with a driven bevel gear 18, and the driving bevel gear 17 is engaged with the corresponding driven bevel gear 18.

In this embodiment, locating hole 10 has all been seted up to the left and right sides and the front and back both sides of fixed plate 1, locating hole 10 and the dead lever 9 sliding connection that corresponds, and the upper and lower both sides of dead lever 9 have all been seted up spacing groove 11, and equal fixed mounting has stopper 12 on the top inner wall of locating hole 10 and the bottom inner wall, stopper 12 and spacing groove 11 sliding connection.

In this embodiment, the screw 26 is fixedly sleeved with a chain wheel 29, and two chain wheels 29 are engaged with the same chain 30.

In this embodiment, a rotating groove 34 is formed on the inner wall of the right side of the sliding groove 24, an outer ring of the bearing 35 is fixedly mounted on the inner wall of the rotating groove 34, and an inner ring of the bearing 35 is fixedly connected with the corresponding screw 26.

In this embodiment, two symmetrically arranged worms 32 are fixedly sleeved on the screw 26, worm wheels 33 are connected to the support rods 31 in a threaded manner, and the worms 32 are meshed with the corresponding worm wheels 33.

In this embodiment, two symmetrically-arranged annular sliding grooves 39 are formed in the inner wall of the bottom of the sliding groove 24, two symmetrically-arranged positioning blocks 40 are connected to the inner wall of the annular sliding groove 39 in a sliding manner, and the positioning blocks 40 are fixedly connected with the worm wheel 33.

In this embodiment, four symmetrically disposed connecting grooves 36 are formed at the top of the fixing plate 1, a sliding rod 37 is fixedly mounted on an inner wall of the connecting groove 36, a connecting seat 38 is slidably connected to an inner wall of the connecting groove 36, the connecting seat 38 is slidably connected to the sliding rod 37, and the connecting seat 38 is rotatably connected to the corresponding supporting rod 31.

In this embodiment, four symmetrically arranged positioning rods 23 are fixedly installed at the bottom of the floating plate 13, a baffle 22 is fixedly installed at the bottom end of the positioning rod 23, and the positioning rod 23 is slidably connected with the water baffle 21.

Example two

Referring to fig. 1-5, a lifting system for ocean engineering comprises a fixed plate 1, a floating plate 13 welded at the bottom of the fixed plate 1, a platform 2 arranged above the fixed plate 1, a first motor 3 fixed at the top of the fixed plate 1 through bolts, a rotating rod 4 welded on the output shaft of the first motor 3, a rotating cavity 6 arranged on the fixed plate 1, four symmetrically arranged sleeves 5 rotatably connected on the inner wall of the rotating cavity 6, fixing rods 9 slidably connected on the left side, the right side, the front side and the rear side of the fixed plate 1, the fixing rods 9 in threaded connection with the corresponding sleeves 5, a connecting plate 14 welded at one end of the fixing rods 9, a connecting rod 15 welded at the bottom of the connecting plate 14, a stabilizing ball 16 welded at the bottom end of the connecting rod 15, two symmetrically arranged sliding grooves 24 arranged at the top of the platform 2, a screw 26 rotatably connected on the inner wall of the sliding groove 24, and a second motor 25 fixed on the inner wall of the left side, the output shaft of second motor 25 and the 26 fixed connection of screw rod that correspond, threaded connection has removal seat 27 on the screw rod 26, the top welding of two removal seats 27 has hoist device 28, sliding connection has the bracing piece 31 that four symmetries set up on platform 2, two bracing pieces 31 are connected with the screw rod 26 transmission that corresponds, the bottom and the fixed plate 1 of bracing piece 31 rotate to be connected, the bottom of fixed plate 1 rotates the lead screw 19 that is connected with two symmetries and sets up, threaded connection has connecting block 20 on the lead screw 19, the welding has same breakwater 21 on two connecting blocks 20.

In this embodiment, the bottom welding of bull stick 4 has first conical gear 7, and the one end welding of sleeve pipe 5 has second conical gear 8, and first conical gear 7 and four second conical gear 8 intermeshing, pivoted bull stick 4 can drive four sleeve pipes 5 through the intermeshing of first conical gear 7 and four second conical gear 8 and rotate simultaneously.

In this embodiment, the sleeve 5 is fixedly sleeved with a driving bevel gear 17, the top end of the screw rod 19 is welded with a driven bevel gear 18, the driving bevel gear 17 is meshed with the corresponding driven bevel gear 18, and the rotating sleeve 5 can drive the screw rod 19 to rotate through the mutual meshing of the driving bevel gear 17 and the driven bevel gear 18.

In this embodiment, locating hole 10 has all been seted up to the left and right sides and the front and back both sides of fixed plate 1, locating hole 10 and the dead lever 9 sliding connection that corresponds, and the upper and lower both sides of dead lever 9 have all seted up spacing groove 11, all welded stopper 12 on the top inner wall of locating hole 10 and the bottom inner wall, stopper 12 and 11 sliding connection of spacing groove, and spacing groove 11 can carry on spacingly to dead lever 9 with stopper 12's sliding connection.

In this embodiment, the screw 26 is fixedly sleeved with the chain wheel 29, the two chain wheels 29 are engaged with the same chain 30, and the output shaft of the second motor 25 can drive the two screw 26 to rotate simultaneously by the mutual engagement of the two chain wheels 29 and the chain 30.

In this embodiment, the right inner wall of the sliding groove 24 is provided with a rotating groove 34, the inner wall of the rotating groove 34 is welded with an outer ring of the bearing 35, the inner ring of the bearing 35 is fixedly connected with the corresponding screw 26, and the bearing 35 can stabilize the rotating state of the screw 26 and reduce the friction force when the screw 26 rotates.

In this embodiment, the screw 26 is fixedly sleeved with two symmetrically-arranged worms 32, the support rod 31 is screwed with a worm wheel 33, the worms 32 are meshed with the corresponding worm wheels 33, the rotating screw 26 can drive the worm wheels 33 to rotate through the mutual meshing of the worms 32 and the worm wheels 33, and the support rod 31 is driven to move through the screwed connection of the worm wheels 33 and the support rod 31.

In this embodiment, two symmetrically-arranged annular sliding grooves 39 are formed in the inner wall of the bottom of the sliding groove 24, two symmetrically-arranged positioning blocks 40 are connected to the inner wall of the annular sliding groove 39 in a sliding manner, the positioning blocks 40 are fixedly connected with the worm wheel 33, and the annular sliding grooves 39 and the positioning blocks 40 are connected in a sliding manner to stabilize the rotating state of the worm wheel 33.

In this embodiment, four symmetrically-arranged connecting grooves 36 are formed in the top of the fixing plate 1, a sliding rod 37 is welded on the inner wall of each connecting groove 36, a connecting seat 38 is slidably connected on the inner wall of each connecting groove 36, the connecting seat 38 is slidably connected with the sliding rod 37, the connecting seat 38 is rotatably connected with the corresponding supporting rod 31, and the sliding rod 37 and the connecting seat 38 are slidably connected to position the supporting rod 31.

In this embodiment, the bottom welding of floating plate 13 has four locating levers 23 that the symmetry set up, and the bottom welding of locating lever 23 has baffle 22, and locating lever 23 and breakwater 21 sliding connection, thereby locating breakwater 21 through the sliding connection with breakwater 21 is located to locating lever 23.

In the embodiment, in operation, the switch of the first motor 3 is started, the output shaft of the first motor 3 drives the rotating rod 4 to rotate, the rotating rod 4 drives the four sleeves 5 to rotate through the mutual engagement of the first bevel gear 7 and the four second bevel gears 8, the rotating sleeves 5 drive the fixing rod 9 to move through the threaded connection with the fixing rod 9, the fixing rod 9 drives the stabilizing ball 16 to be far away from the fixing plate 1 through the connecting plate 14 and the connecting rod 15, so that the stability of the device can be increased, meanwhile, the rotating sleeves 5 drive the screw rod 19 to rotate through the mutual engagement of the driving bevel gear 17 and the driven bevel gear 18, the rotating screw rod 19 drives the water baffle 21 to move downwards through the threaded connection with the connecting block 20, so that the water baffle 21 moves to the bottom of the water, when the device shakes, the device can be stabilized through the resistance of water, when the hoisting device 28 is used, start the switch of second motor 25, the output shaft of second motor 25 drives two screw rods 26 through the intermeshing of two sprocket 29 and chain 30 and rotates, screw rod 26 drives hoist device 28 through the threaded connection with removing seat 27 and removes, pivoted screw rod 26 drives bracing piece 31 through the intermeshing of worm 32 with worm wheel 33 and removes simultaneously, because the symmetry setting of two worm wheel 33, make pivoted screw rod 26 can drive platform 2 and appear the angle change, and then can make hoist device 28 can stabilize one side of bearing when removing, prevent when hoist and mount, the unstable emergence of gravity turns on one's side, be convenient for people to use. All structures in this application can carry out the selection of material and length according to actual use condition, and the attached drawing is schematic structure chart, and specific actual dimensions can make appropriate adjustment.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention in the technical scope of the present invention.