Marine deck folding crane

Abstract

The utility model relates to a deck folding crane for a ship, which relates to the technical field of deck cranes and comprises a base, a group of supports are arranged on the base, a hanging beam is arranged between the supports, a wheel seat is sleeved on the hanging beam, the hanging beam is connected with the wheel seat in a sliding mode, a pulley is sleeved on the wheel seat, the wheel seat is connected with the pulley in a rotating mode, and the wheel seat is connected with the pulley in a sliding mode. A reinforcing bearing is arranged between the wheel seat and the pulley, a group of wheel carriers are fixedly arranged on the wheel seat, a limiting wheel is rotationally arranged between the wheel carriers, a steel wire rope is inserted between the limiting wheel and the pulley and is erected on the pulley, a lifting hook is arranged at one end of the steel wire rope, and an electric winch is arranged at the other end of the steel wire rope. And the electric capstan is connected with the base. The hoisting device has the effects of reducing pulley falling and improving the object hoisting stability.

Description

TECHNICAL FIELD

[0001] The utility model relates to deck crane technical field especially is related to a deck folding crane for ship. BACKGROUND

[0002] The deck crane is a kind of mechanical equipment installed on the deck of ship, and its main function is to transfer goods, which improves the efficiency of goods transfer on the ship.

[0003] The related art is designed with the authorization announcement No.CN222007070U of Chinese patent provides a hydraulic crane for ship, it includes rotating table, rotating table is fixedly arranged on the positioning seat, a group of movable rods are hinged on the positioning seat, second hydraulic cylinder is hinged between movable rod and rotating table, U-shaped frame is commonly arranged on movable rod, first hydraulic cylinder is arranged between movable rod and U-shaped frame, pulley is fixedly installed on the side of U-shaped frame towards positioning seat, steel wire rope is passed through pulley, hook is installed on one end of steel wire rope, electric winch is connected on the other end of steel wire rope, electric winch is fixedly installed on the top of rotating table.When using crane, the output shaft of first hydraulic cylinder and the output shaft of second hydraulic cylinder are elongated, the pulley is moved to a certain height, and then the hook is used to hoist the goods, when the crane is stored, the output shaft of first hydraulic cylinder and the output shaft of second hydraulic cylinder are shortened, and the effect of storing the crane is realized.

[0004] In the process of realizing the present application, the inventors found that in the prior art, at least the following problems exist: Because the pulley is installed at the bottom of the U-shaped frame, when the goods are hoisted, the pulley will bear a certain pressure and tension, and the pulley is easy to fall off the U-shaped frame, thereby affecting the smooth progress of the goods hoisting operation. UTILITY MODEL CONTENTS

[0005] In order to reduce the situation of pulley falling off and improve the stability of goods hoisting, the present application provides a deck folding crane for ship.

[0006] The deck folding crane for ship provided by the present application adopts the following technical scheme:

[0007] A deck folding crane for ship, comprising a base, a plurality of supports are arranged on the base, a hoisting beam is arranged between the supports, a wheel seat is sleeved on the hoisting beam, the hoisting beam and the wheel seat are slidingly connected, a pulley is sleeved on the wheel seat, the wheel seat and the pulley are rotationally connected, a reinforcing bearing is arranged between the wheel seat and the pulley, a plurality of wheel frames are fixedly arranged on the wheel seat, a plurality of limit wheels are rotationally arranged between the wheel frames, a steel wire rope is inserted between the limit wheels and the pulley, the steel wire rope is arranged on the pulley, a hook is arranged at one end of the steel wire rope, an electric winch is arranged at the other end of the steel wire rope, and the electric winch is connected with the base.

[0008] Through the above technical scheme, when the hoisting operation of the article is carried out, the steel wire rope pulls and lifts the article, and in the process of the steel wire rope operation, the pressure borne by the pulley is applied to the wheel seat through the reinforced bearing, and the pressure borne by the wheel seat is applied to the hoisting beam. Since the hoisting pulley provides upward supporting force to the wheel seat, and the wheel seat provides upward supporting force to the pulley, the situation that the pulley falls off the hoisting beam is reduced, and the stability of the article hoisting is improved.

[0009] Preferably, the outer wall of the pulley is provided with a lower annular groove, a plurality of lower rollers are rotatably arranged in the lower annular groove, the lower rollers are arranged in an array along the circumference of the lower annular groove, the outer wall of the limiting wheel is provided with an upper annular groove, a plurality of upper rollers are rotatably arranged in the upper annular groove, the upper rollers are arranged in an array along the circumference of the upper annular groove, a traction channel is formed between the upper rollers and the lower rollers, and the steel wire rope is inserted into the traction channel.

[0010] Through the above technical scheme, when the steel wire rope moves in the traction channel, the upper rollers and the lower rollers all roll relative to the steel wire rope, thereby reducing the wear of the steel wire rope.

[0011] Preferably, a horizontal moving groove is formed in the hoisting beam, a horizontal moving block is slidably arranged in the horizontal moving groove, the side walls of the horizontal moving block are in close contact with the inner walls of the horizontal moving groove, the horizontal moving block is fixedly connected with the wheel seat, a horizontal moving motor is fixedly arranged in the horizontal moving groove, a horizontal moving screw rod is fixedly arranged on the output shaft of the horizontal moving motor, and the end of the horizontal moving screw rod away from the horizontal moving motor is rotatably connected with the inner wall of the horizontal moving groove.

[0012] Through the above technical scheme, the horizontal moving motor is started to drive the horizontal moving screw rod to rotate, the horizontal moving screw rod drives the horizontal moving block to move along the horizontal moving groove, the horizontal moving block drives the wheel seat to move along the hoisting beam, and the wheel seat drives the traction channel to move, thereby achieving the effect of moving the position of the steel wire rope.

[0013] Preferably, the horizontal moving groove is located at the bottom of the hoisting beam, a horizontal moving guide rail is fixedly arranged at the top of the hoisting beam, the horizontal moving guide rail is parallel to the horizontal moving groove, a horizontal moving guide roller is rotatably arranged in the horizontal moving guide rail, and the horizontal moving guide roller is rotatably connected with the wheel seat.

[0014] Through the above technical scheme, when the wheel seat moves along the hoisting beam, the horizontal moving guide roller rolls along the horizontal moving guide rail, thereby reducing the friction between the wheel seat and the hoisting beam.

[0015] As preferred, the base top is fixedly provided with a sliding seat, a sliding groove is formed in the sliding seat, the sliding groove is parallel to the horizontal moving groove, a sliding block is slidably arranged in the sliding groove, the two side walls of the sliding block are matched with the inner walls of the sliding groove, the sliding block is fixedly connected with the electric winch, a sliding motor is fixedly arranged in the sliding groove, a sliding screw rod is fixedly arranged on the output shaft of the sliding motor, the end of the sliding screw rod away from the sliding motor is rotatably connected with the inner wall of the sliding groove, and the sliding screw rod is threadedly connected with the sliding block.

[0016] By adopting the above technical scheme, the sliding motor drives the sliding screw rod to rotate, the sliding screw rod drives the sliding block to move along the sliding groove, and the sliding block drives the electric winch to move on the base, so that the electric winch can follow the horizontal movement of the steel wire rope.

[0017] As preferred, the sliding groove is located on the side wall of the sliding seat, a sliding guide rail is fixedly arranged on the base, the sliding guide rail is parallel to the sliding groove, a sliding guide wheel is rotatably arranged in the sliding guide rail, and the sliding guide wheel is rotatably connected with the bottom of the electric winch.

[0018] By adopting the above technical scheme, when the electric winch moves on the base, the sliding guide wheel rolls along the sliding guide rail, so as to reduce the friction between the electric winch and the base.

[0019] As preferred, a hinged seat is fixedly arranged on the base, one end of the hinged seat is rotatably connected with one of the supports, the other end of the hinged seat is rotatably connected with the other support, a support shaft is fixedly arranged between the opposite surfaces of the supports, a plurality of support sleeves are sleeved on the support shaft, the support sleeves are rotatably connected with the support shaft, a support piston cylinder is arranged between the support sleeves and the base, the cylinder body of the support piston cylinder is rotatably connected with the base, and the output shaft of the support piston cylinder is fixedly connected with the support sleeves.

[0020] By adopting the above technical scheme, when the output shaft of the support piston cylinder is extended or retracted, the support and the hinged seat are relatively rotated, so as to realize the folding effect of the crane.

[0021] As preferred, an extension slot is formed in the top of the support, an extension rod is inserted into the extension slot, one end of the extension rod outside the extension slot is fixedly connected with the hoisting beam, and the opposite surfaces of the support are fixedly provided with extension piston cylinders.

[0022] By adopting the above technical scheme, when the output shaft of the extension piston cylinder is extended or retracted, the hoisting beam and the support are relatively moved, so as to realize the folding effect of the crane.

[0023] As preferred, the base bottom is fixedly provided with a rotating shaft, the bottom end of the rotating shaft is rotatably provided with a rotating seat, the rotating seat is fixedly provided with a rotating motor, the output shaft of the rotating motor is fixedly provided with a driving pulley, a transmission pulley is sleeved on the rotating shaft, the transmission pulley is fixedly connected with the rotating shaft, and the transmission pulley and the driving pulley are jointly sleeved with a belt.

[0024] By adopting the above technical scheme, the rotating motor drives the driving pulley to rotate, the transmission pulley is driven to rotate through the belt when the driving pulley rotates, the rotating shaft is driven to rotate through the transmission pulley, and the base is driven to rotate through the rotating shaft, so that the effect of moving the goods by the crane is realized.

[0025] As preferred, the base and the rotating seat are provided with a supporting ring, the top of the supporting ring is rotatably connected with the bottom of the base, and the bottom of the supporting ring is rotatably connected with the top of the rotating seat.

[0026] By adopting the above technical scheme, the supporting ring forms support between the base and the rotating seat, and the deformation of the base is reduced.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. By providing the base, the support, the hoisting beam, the wheel seat, the pulley, the reinforcing bearing, the wheel frame, the limiting wheel, the steel wire rope, the lifting hook and the electric winch, the situation that the pulley falls off the hoisting beam is reduced, and the stability of the goods hoisting is improved.

[0029] 2. By providing the lower ring groove, the lower roller, the upper ring groove, the upper roller and the traction channel, the abrasion of the steel wire rope is reduced.

[0030] 3. By providing the hinged seat, the supporting shaft, the supporting sleeve and the supporting piston cylinder, the effect that the crane is folded is realized. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a schematic view of a deck folding crane structure for a ship in the embodiment of the present application.

[0032] Figure 2 is Figure 1 is an enlarged view of part A in

[0033] Figure 3 is a sectional view showing the positional relationship between the upper roller and the lower roller in the embodiment of the present application.

[0034] Figure 4 is Figure 3 is an enlarged view of part B in

[0035] Figure 5is a sectional view of the connecting relationship between the hoisting beam and the wheel seat in the embodiment of the present application.

[0036] Figure 6 is a sectional view of the connecting relationship between the sliding seat and the sliding block in the embodiment of the present application.

[0037] Figure 7 is a sectional view of the connecting relationship between the base and the electric winch in the embodiment of the present application.

[0038] Figure 8 is a sectional view of the connecting relationship between the support piston cylinder and the support in the embodiment of the present application.

[0039] Figure 9 is a sectional view of the connecting relationship between the base and the rotating seat in the embodiment of the present application.

[0040] BRIEF DESCRIPTION OF DRAWINGS: 1, base; 2, support; 21, hinged seat; 22, support piston cylinder; 221, support sleeve; 23, support shaft; 3, hoisting beam; 31, transverse moving groove; 311, transverse moving block; 312, transverse moving screw; 313, transverse moving motor; 32, transverse moving guide rail; 321, transverse moving guide wheel; 4, wheel seat; 41, reinforcing bearing; 42, wheel frame; 5, traction channel; 51, pulley; 511, lower ring groove; 512, lower roller; 52, limiting wheel; 521, upper ring groove; 522, upper roller; 6, steel wire rope; 61, hook; 62, electric winch; 7, sliding seat; 71, sliding groove; 711, sliding block; 712, sliding screw; 713, sliding motor; 72, sliding guide rail; 721, sliding guide wheel; 8, telescopic piston cylinder; 81, telescopic rod; 82, telescopic groove; 9, rotating seat; 91, rotating shaft; 92, rotating motor; 93, belt; 931, driving pulley; 932, transmission pulley; 94, support ring. DETAILED DESCRIPTION

[0041] The following will be described in detail in combination with the accompanying drawings Figures 1-9 The present application will be further described in detail.

[0042] The embodiment of the present application discloses a ship deck folding crane. Referring to Figures 1 to 8, including the base 1, the base 1 is welded to the hinge seat 21, the hinge seat 21 is rotatably connected to the support 2 through the bearing at both ends. The support 2 is installed between the opposite faces of the support shaft 23, the support shaft 23 is sleeved with a plurality of support sleeves 221, the support sleeves 221 are rotatably connected with the support shaft 23. The support sleeve 221 and the base 1 are installed between the support piston cylinder 22, the cylinder body of the support piston cylinder 22 is rotatably connected with the base 1, the output shaft of the support piston cylinder 22 is fixedly connected with the support sleeve 221. The support 2 top is provided with a telescopic slot 82, the telescopic slot 82 is inserted with a telescopic rod 81, the telescopic rod 81 is located at one end of the telescopic slot 82 and is commonly welded with the beam 3. The opposite faces of the support 2 are installed with the telescopic piston cylinder 8, the cylinder body of the telescopic piston cylinder 8 is welded with the support 2, the output shaft of the telescopic piston cylinder 8 is welded with the beam 3. When the output shaft of the support piston cylinder 22 is telescopic, the support 2 and the hinge seat 21 are relatively rotated; when the output shaft of the telescopic piston cylinder 8 is telescopic, the beam 3 and the support 2 are relatively moved. By adjusting the position of the beam 3 and the position of the support 2, the effect of folding the crane is realized.

[0043] Referring to Figures 1 to 4 , the beam 3 is sleeved with the wheel seat 4, and the beam 3 is slidably connected with the wheel seat 4. The wheel seat 4 is sleeved with the pulley 51, the wheel seat 4 is rotatably connected with the pulley 51, and the wheel seat 4 and the pulley 51 are installed with the reinforcing bearing 41. The outer wall of the pulley 51 is provided with a lower ring groove 511, a plurality of lower rollers 512 are rotatably arranged in the lower ring groove 511, and the lower rollers 512 are distributed along the circumference of the lower ring groove 511. A group of wheel frames 42 are welded on the wheel seat 4, and the limiting wheels 52 are rotatably arranged between the wheel frames 42. The outer wall of the limiting wheel 52 is provided with an upper ring groove 521, a plurality of upper rollers 522 are rotatably arranged in the upper ring groove 521, and the upper rollers 522 are distributed along the circumference of the upper ring groove 521. The oppositely arranged upper rollers 522 and lower rollers 512 form a traction channel 5, a steel wire rope 6 is inserted into the traction channel 5, and the steel wire rope 6 is arranged on the lower rollers 512. When the steel wire rope 6 moves in the traction channel 5, the upper rollers 522 and the lower rollers 512 are relatively rolled with the steel wire rope 6, so as to reduce the abrasion of the steel wire rope 6. One end of the steel wire rope 6 is installed with a hook 61, the other end of the steel wire rope 6 is connected with an electric winch 62, and the electric winch 62 is installed on the base 1. When the hoisting operation of the goods is carried out, the steel wire rope 6 pulls and lifts the goods. In the operation process of the steel wire rope 6, the pressure borne by the pulley 51 is applied to the wheel seat 4 through the reinforcing bearing 41, and the pressure borne by the wheel seat 4 is applied to the beam 3. Since the pulley provides upward supporting force to the wheel seat 4, and the wheel seat 4 provides upward supporting force to the pulley 51, the situation that the pulley 51 falls off the beam 3 is reduced, and the stability of the goods hoisting is improved.

[0044] In order to realize the effect of moving the goods with the crane, referring to Figures 1 to 5The top of the hoisting beam 3 is provided with a plurality of horizontal moving guide rails 32, and the bottom of the hoisting beam 3 is provided with horizontal moving grooves 31, and the horizontal moving guide rails 32 are parallel to the horizontal moving grooves 31. The horizontal moving guide rails 32 are provided with horizontal moving guide wheels 321 which are rotatably connected to the wheel seat 4. The horizontal moving grooves 31 are provided with horizontal moving blocks 311 which are slidably arranged in the horizontal moving grooves 31, and the two side walls of the horizontal moving blocks 311 are in close contact with the inner walls of the horizontal moving grooves 31, and the horizontal moving blocks 311 are welded to the wheel seat 4. The horizontal moving grooves 31 are provided with horizontal moving motors 313, and the horizontal moving motors 313 are provided with horizontal moving lead screws 312, and the horizontal moving lead screws 312 are rotatably connected to the inner walls of the horizontal moving grooves 31 away from the horizontal moving motors 313, and the horizontal moving lead screws 312 are threadedly connected to the horizontal moving blocks 311. The horizontal moving motors 313 are started to drive the horizontal moving lead screws 312 to rotate, the horizontal moving lead screws 312 are driven to rotate to drive the horizontal moving blocks 311 to move along the horizontal moving grooves 31, the horizontal moving blocks 311 are driven to move to drive the wheel seat 4 to move along the hoisting beam 3, and when the wheel seat 4 moves along the hoisting beam 3, the horizontal moving guide wheels 321 roll along the horizontal moving guide rails 32 to reduce the friction between the wheel seat 4 and the hoisting beam 3. The movement of the wheel seat 4 drives the traction channel 5 to move, thereby achieving the effect of moving the position of the steel wire rope 6.

[0045] With reference to Figures 1 to 9 The bottom of the base 1 is provided with a rotating shaft 91, and the bottom end of the rotating shaft 91 is rotatably provided with a rotating seat 9. A supporting ring 94 is arranged between the base 1 and the rotating seat 9, the top of the supporting ring 94 is rotatably connected to the bottom of the base 1 through a bearing, the bottom of the supporting ring 94 is rotatably connected to the top of the rotating seat 9 through a bearing, and the supporting ring 94 forms a support between the base 1 and the rotating seat 9 to reduce the deformation of the base 1. The rotating shaft 91 is located between the base 1, the rotating seat 9 and the supporting ring 94, and the rotating shaft 91 is provided with a rotating motor 92, a driving pulley 931, a transmission pulley 932 and a belt 93 between the base 1, the rotating seat 9 and the supporting ring 94. The rotating motor 92 is fixedly arranged on the rotating seat 9, and the output shaft of the rotating motor 92 is fixedly provided with the driving pulley 931. The transmission pulley 932 is sleeved on the rotating shaft 91, and the transmission pulley 932 is fixedly connected to the rotating shaft 91. The belt 93 is sleeved on the transmission pulley 932 and the driving pulley 931. The rotating motor 92 is started to drive the driving pulley 931 to rotate, the driving pulley 931 is driven to rotate through the belt 93 to drive the transmission pulley 932 to rotate, the transmission pulley 932 is driven to rotate to drive the rotating shaft 91 to rotate, and the rotating shaft 91 is driven to rotate to drive the base 1 to rotate, thereby achieving the effect of moving the articles by the crane.

[0046] In order to make the electric winch 62 move horizontally with the steel wire rope 6, with reference to Figures 1 to 7The sliding seat 7 is provided with a sliding groove 71 on one side wall, and the sliding guide rail 72 and the sliding groove 71 are parallel to the transverse moving groove 31. The sliding guide wheel 721 is rotatably arranged in the sliding guide rail 72 and is rotatably connected to the bottom of the electric winch 62. The sliding block 711 is slidably arranged in the sliding groove 71 and is fixedly connected to the electric winch 62. The sliding motor 713 is arranged in the sliding groove 71, and the output shaft of the sliding motor 713 is provided with a sliding screw rod 712. The sliding screw rod 712 is rotatably connected to the inner wall of the sliding groove 71 at the end away from the sliding motor 713, and is threadedly connected to the sliding block 711. The sliding motor 713 drives the sliding screw rod 712 to rotate, the sliding screw rod 712 drives the sliding block 711 to move along the sliding groove 71, and the sliding block 711 drives the electric winch 62 to move on the base 1. When the electric winch 62 moves on the base 1, the sliding guide wheel 721 rolls along the sliding guide rail 72, reducing the friction between the electric winch 62 and the base 1, and realizing the effect that the electric winch 62 moves transversely along with the steel wire rope 6.

[0047] The implementation principle of the deck folding crane for ship according to the embodiment of the application is as follows: when the output shaft of the supporting piston cylinder 22 is extended or retracted, the support 2 and the hinge seat 21 rotate relative to each other; when the output shaft of the telescopic piston cylinder 8 is extended or retracted, the hoisting beam 3 and the support 2 move relative to each other. The hoisting beam 3 and the support 2 are adjusted to realize the folding effect of the crane. The driving wheel seat 4 is driven to move transversely along the hoisting beam 3 and the base 1 is driven to rotate, so that the crane can move the objects. When the objects are hoisted, the steel wire rope 6 pulls and lifts the objects. During the operation of the steel wire rope 6, the pressure borne by the pulley 51 is applied to the wheel seat 4 through the reinforced bearing 41, and the pressure borne by the wheel seat 4 is applied to the hoisting beam 3. Since the hoisting wheel provides upward supporting force to the wheel seat 4, and the wheel seat 4 provides upward supporting force to the pulley 51, the pulley 51 is less likely to fall off the hoisting beam 3, and the stability of the hoisting of the objects is improved.

[0048] The above are preferred embodiments of the application, and do not limit the protection scope of the application. Any equivalent changes made according to the structure, shape and principle of the application should be covered by the protection scope of the application.

Claims

1. A deck folding crane for a ship, comprising a base, a set of supports arranged on the base, and a hoisting beam arranged between the supports, characterized in that: The wheel seat is sleeved on the hanging beam, the hanging beam is in sliding connection with the wheel seat, a pulley is sleeved on the wheel seat, the wheel seat is in rotary connection with the pulley, a reinforcing bearing is arranged between the wheel seat and the pulley, a group of wheel frames are fixedly arranged on the wheel seat, limit wheels are rotatably arranged between the wheel frames, a steel wire rope is inserted between the limit wheels and the pulley, the steel wire rope is arranged on the pulley, a hook is arranged at one end of the steel wire rope, and an electric winch is arranged at the other end of the steel wire rope.

2. A deck folding crane for a ship according to claim 1, characterized in that: A lower annular groove is formed in the outer wall of the pulley, a plurality of lower rollers are rotatably arranged in the lower annular groove, the lower rollers are arranged in a circumferential array along the lower annular groove, an upper annular groove is formed in the outer wall of the limit wheel, a plurality of upper rollers are rotatably arranged in the upper annular groove, the upper rollers are arranged in a circumferential array along the upper annular groove, a traction channel is formed between the upper rollers and the lower rollers, and the steel wire rope is inserted in the traction channel.

3. A deck folding crane for a ship according to claim 1, characterized in that: A horizontal moving groove is formed in the hanging beam, a horizontal moving block is slidably arranged in the horizontal moving groove, the two side walls of the horizontal moving block are in close contact with the inner walls of the horizontal moving groove, the horizontal moving block is fixedly connected with the wheel seat, a horizontal moving motor is fixedly arranged in the horizontal moving groove, a horizontal moving screw rod is fixedly arranged on the output shaft of the horizontal moving motor, and the end of the horizontal moving screw rod, which is away from the horizontal moving motor, is rotatably connected with the inner wall of the horizontal moving groove.

4. A deck folding crane for a ship according to claim 3, characterized in that: The horizontal moving groove is located at the bottom of the hanging beam, a horizontal moving guide rail is fixedly arranged at the top of the hanging beam, the horizontal moving guide rail is parallel to the horizontal moving groove, a horizontal moving guide wheel is rotatably arranged in the horizontal moving guide rail, and the horizontal moving guide wheel is rotatably connected with the wheel seat.

5. A deck folding crane for a ship according to claim 3, characterized in that: A sliding seat is fixedly arranged at the top of the base, a sliding groove is formed in the sliding seat, the sliding groove is parallel to the horizontal moving groove, a sliding block is slidably arranged in the sliding groove, the two side walls of the sliding block are in close contact with the inner walls of the sliding groove, the sliding block is fixedly connected with the electric winch, a sliding motor is fixedly arranged in the sliding groove, a sliding screw rod is fixedly arranged on the output shaft of the sliding motor, and the end of the sliding screw rod, which is away from the sliding motor, is rotatably connected with the inner wall of the sliding groove.

6. A deck folding crane for a ship according to claim 5, characterized in that: The sliding groove is located on the side wall of the sliding seat, a sliding guide rail is fixedly arranged on the base, the sliding guide rail is parallel to the sliding groove, a sliding guide wheel is rotatably arranged in the sliding guide rail, and the sliding guide wheel is rotatably connected with the bottom of the electric winch.

7. A deck folding crane for a ship according to claim 1, characterized in that: A hinged seat is fixedly arranged on the base, one end of the hinged seat is rotatably connected with one of the supports, the other end of the hinged seat is rotatably connected with the other support, a support shaft is fixedly arranged between the opposite surfaces of the supports, a plurality of support sleeves are sleeved on the support shaft, the support sleeves are rotatably connected with the support shaft, a support piston cylinder is arranged between the support sleeves and the base, the cylinder body of the support piston cylinder is rotatably connected with the base, and the output shaft of the support piston cylinder is fixedly connected with the support sleeves.

8. A deck folding crane for a ship according to claim 1, characterized in that: A telescopic groove is formed in the top of the support, a telescopic rod is inserted in the telescopic groove, the end of the telescopic rod, which is located outside the telescopic groove, is fixedly connected with the hanging beam, and telescopic piston cylinders are fixedly arranged on the opposite surfaces of the support.

9. A deck folding crane for a ship according to claim 1, characterized in that: The base bottom is fixedly provided with a rotating shaft, the bottom end of the rotating shaft is rotatably provided with a rotating seat, the rotating seat is fixedly provided with a rotating motor, the output shaft of the rotating motor is fixedly provided with a driving pulley, a transmission pulley is sleeved on the rotating shaft, the transmission pulley is fixedly connected with the rotating shaft, and the transmission pulley and the driving pulley are jointly sleeved with a belt.

10. A deck folding crane for a ship according to claim 9, characterized in that: A supporting ring is arranged between the base and the rotating seat, the top of the supporting ring is rotatably connected with the bottom of the base, the bottom of the supporting ring is rotatably connected with the top of the rotating seat, and the rotating shaft, the rotating motor, the driving pulley, the transmission pulley and the belt are all located between the supporting ring.

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