Automatic lifting device for bilge of wharf boat

Abstract

The utility model discloses an automatic wharf boat bilge lifting device which comprises a lifting frame and a lifting table, the lifting frame comprises two vertical guide rails, and guide grooves are formed in the vertical guide rails; a fixing plate is welded to the top of the lifting frame, the lifting table is mounted on two guide rails of the lifting frame in a liftable mode, a mounting base is arranged on the rear side of the lifting table, a hydraulic cylinder is fixed through the mounting base, and the end of a piston rod of the hydraulic cylinder is fixedly connected with the fixing plate. The lifting frame is provided with two side plates, detachable guide wheel assemblies are installed on the side plates respectively, and the guide wheel assemblies can only vertically move along the guide grooves. The lifting platform capable of automatically lifting is arranged, in the lifting process, the guide wheel assembly can only ascend and descend along the guide groove of the lifting frame, the lifting platform ascends and descends very stably, the problems that people go up and down a bilge inconveniently and unsafely, and goods are difficult to carry are solved, and relatively convenient conditions are provided for people and goods to go to a wharf boat; the guide wheel assembly can be adjusted, convenient disassembly is achieved, and installation and maintenance and replacement of parts are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting equipment, and in particular relates to an automatic lifting device for a pontoon bottom hold. Background Art

[0002] A pontoon is a rectangular flat-bottomed boat without a power device, usually fixed to the shore, mainly used as a floating dock for ships to dock, passengers to board and disembark, and cargo to be loaded and unloaded.

[0003] In waterway monitoring and maintenance, pontoons play an important role. For example, they are used to store waterway production materials. During storage, relevant navigation aids and other equipment need to be transferred to the bottom hold of the pontoon, and taken out when waterway maintenance is carried out. Therefore, personnel need to carry materials up and down the bottom hold frequently. However, the current bottom hold of the pontoon lacks a safe and stable automatic lifting device. Personnel generally go up and down the bottom hold through a vertical ladder, which is very inconvenient. At the same time, they also have to carry waterway production materials, which poses a safety hazard. Utility Model Content

[0004] The utility model provides an automatic lifting device for the bottom hold of a pontoon. By arranging a lifting platform that can be automatically raised and lowered, and during the lifting process, the guide wheel assembly can only be raised and lowered along the guide groove of the lifting frame, the lifting platform is raised and lowered very stably, thereby solving the problems of inconvenience and unsafety for personnel to get on and off the bottom hold, difficulty in handling goods, etc., providing relatively convenient conditions for personnel and goods to go to the pontoon, thereby solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic lifting device for the bottom hold of a pontoon, comprising a lifting frame and a lifting platform, the lifting frame comprising two vertical guide rails, each of which is provided with a vertical guide groove; a fixing plate connecting the two guide rails is welded to the top of the lifting frame, the lifting platform can be lifted and lowered on the two guide rails of the lifting frame, a mounting seat is provided on the rear side of the lifting platform, and a vertical hydraulic cylinder is fixed through the mounting seat, the end of the hydraulic cylinder piston rod is fixedly connected to the bottom surface of the fixing plate; two side plates are provided on the rear side of the lifting frame, and detachable guide wheel assemblies are respectively installed on the side plates, and the guide wheel assemblies can only move vertically along the guide groove.

[0006] Preferably, the lifting platform is provided with a fence, a door that can be opened and closed is provided on the fence via a hinge, and a door lock is provided between the fence and the door.

[0007] Preferably, a chain fixing part is further provided on the rear side of the lifting platform fence, the chain fixing part fixes one end of the chain, a guide sprocket is installed on the fixing plate, a balancing iron plate that can be lifted and lowered along the guide groove is installed on the lifting frame guide rail, and the chain is fixedly connected to the upper end of the balancing iron plate after being guided by the guide sprocket.

[0008] Preferably, the guide wheel assembly includes a first guide wheel, a second guide wheel and a third guide wheel, each including a rotating wheel and a shaft, the outer edges of the rotating wheels are all V-shaped structures, and relative vertical V-shaped grooves are provided on both sides of the guide groove in the vertical direction. The first guide wheel is only close to the vertical V-shaped groove on one side, and the second guide wheel and the third guide wheel are close to the vertical V-shaped groove on the other side. Fixing parts are provided between the first guide wheel and the second guide wheel and the third guide wheel.

[0009] Preferably, the fixing member includes a first fixing plate connecting the first guide wheel and the second guide wheel, a second fixing plate connecting the first guide wheel and the third guide wheel, a third fixing plate fixed between the first fixing plate and the second fixing plate, and the third fixing plate is fixed to the first fixing plate and the second fixing plate by fastening screws.

[0010] Preferably, the shaft end of the first guide wheel is provided with a square mounting portion, and the side plate is provided with a groove for partially mounting the square mounting portion therein.

[0011] Preferably, the side panel and the square mounting portion are fixed by screws.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. By setting up an automatically rising and falling lifting platform, and during the lifting process, the guide wheel assembly can only be raised and lowered along the guide groove of the lifting frame, the lifting platform is very stable, which solves the problems of inconvenience and unsafety for personnel to go up and down the bottom cabin, and difficulty in handling cargo, and provides relatively convenient conditions for personnel and cargo to go to the pontoon.

[0014] 2. The guide wheel assembly is adjustable. By removing the fastening screws, the relative positions of the second guide wheel, the third guide wheel and the first guide wheel can be adjusted so that the second guide wheel and the third guide wheel can be disengaged from the vertical V-groove. Then the lifting platform and the first guide wheel can be disassembled, which is convenient for disassembly and facilitates installation and maintenance and replacement of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the lifting structure of the lifting platform of the utility model;

[0017] Figure 3 This is a schematic diagram of the top view of the lifting platform of the utility model;

[0018] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at point A;

[0019] Figure 5This is a side structural diagram of the guide wheel assembly of the present utility model;

[0020] Figure 6 This is a schematic cross-sectional structural diagram of the first guide wheel, side plate, and mounting portion of the present invention.

[0021] In the figure: 1. Lifting frame; 2. Lifting platform; 3. Guide groove; 4. Fixed plate; 5. Mounting seat; 6. Hydraulic cylinder; 7. Side panel; 8. Door; 9. Door lock; 10. Chain fixing part; 11. Chain; 12. Guide sprocket; 13. Balance iron plate; 14. First guide wheel; 15. Second guide wheel; 16. Third guide wheel; 17. Vertical V-groove; 18. First fixing plate; 19. Second fixing plate; 20. Third fixing plate; 21. Fastening screw; 22. Square mounting part; 23. Fastening screw. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-6 The present invention provides an automatic lifting device for the bottom hold of a pontoon, comprising a lifting frame 1 and a lifting platform 2, wherein the lifting frame 1 comprises two vertical guide rails, and a vertical guide groove 3 is provided on the vertical guide rails; a fixing plate 4 for connecting the two guide rails is welded on the top of the lifting frame 1, and the lifting platform 2 can be lifted and mounted on the two guide rails of the lifting frame 1, a mounting seat 5 is provided on the rear side of the lifting platform 2, and a vertical hydraulic cylinder 6 is fixed through the mounting seat 5, and the end of the piston rod of the hydraulic cylinder 6 is fixedly connected to the bottom surface of the fixing plate 4; two side plates 7 are provided on the rear side of the lifting frame 1, and detachable guide wheel assemblies are respectively installed on the side plates 7, and the guide wheel assemblies can only be moved along the guide rails It moves vertically toward the groove 3; when working, the hydraulic cylinder 6 is controlled to extend and retract by an external oil pump. The hydraulic cylinder 6 is preferably a multi-stage telescopic cylinder. Two controllers are installed on the lifting frame 1, which can operate the hydraulic cylinder 6 on the upper and lower working surfaces to realize lifting control. When rising, the hydraulic cylinder 6 controls the piston arm to retract, so that the hydraulic cylinder 6 drives the lifting platform 2 to rise to the working surface outside the bottom cabin. When the lifting platform 2 rises, on the contrary, the lifting platform 2 can be lowered from the upper working surface to the bottom cabin, which is used for personnel to carry materials up and down the bottom cabin, and during the lifting process, the guide wheel assembly can only be lifted and lowered along the guide groove 3 of the lifting frame 1, so that the lifting platform 2 is very stable, which solves the problems of inconvenience and unsafety for personnel to go up and down the bottom cabin, and difficulty in handling goods.

[0024] Specifically, the lifting platform 2 is provided with a fence, on which a door 8 that can be opened and closed is installed through a hinge, and a door lock 9 is installed between the fence and the door 8; in this embodiment, the provision of a fence further improves the safety of personnel and goods from falling during lifting, and at the same time, a door 8 that can be opened and closed by a door lock 9 is provided to facilitate entry and exit.

[0025] Specifically, a chain fixing part 10 is further provided on the rear side of the fence of the lifting platform 2, and the chain fixing part 10 fixes one end of the chain 11. A guide sprocket 12 is installed on the fixing plate 4, and a balancing iron plate 13 that can be lifted and lowered along the guide groove 3 is installed on the guide rail of the lifting frame 1. The chain 11 is guided by the guide sprocket 12 and is fixedly connected to the upper end of the balancing iron plate 13; in this embodiment, when the lifting platform 2 rises, the balancing iron plate 13 descends under gravity, causing the chain 11 to rotate counterclockwise around the guide sprocket 12, achieving gravity balance with the lifting platform 2, balancing the lifting stability of the entire device, and reducing the lifting resistance.

[0026] Specifically, the guide wheel assembly includes a first guide wheel 14, a second guide wheel 15 and a third guide wheel 16, each including a rotating wheel and a fixed shaft, the outer edges of the rotating wheels are all V-shaped structures, and opposite vertical V-shaped grooves 17 are vertically provided on both sides of the guide groove 3. The first guide wheel 14 is only close to the vertical V-shaped groove 17 on one side, and the second guide wheel 15 and the third guide wheel 16 are close to the vertical V-shaped groove 17 on the other side. Fixing parts are provided between the first guide wheel 14 and the second guide wheel 15 and the third guide wheel 16; in this embodiment, during the lifting process, the guide wheel assembly can only be lifted and lowered along the guide groove 3 of the lifting frame 1, specifically, the V-shaped structure of the outer edges of the rotating wheels of the first guide wheel 14, the second guide wheel 15, and the third guide wheel 16 are limited in other directions, and can only be lifted and lowered, preventing the guide wheels from detaching from the guide groove 3 during lifting, so that the lifting platform 2 is very stable.

[0027] Specifically, the fixing member includes a first fixing plate 18 fixedly connected to the first guide wheel 14 and the second guide wheel 15, a second fixing plate 19 fixedly connected to the first guide wheel 14 and the third guide wheel 16, and a third fixing plate 20 fixed between the first fixing plate 18 and the second fixing plate 19; the third fixing plate 20 and the first fixing plate 18 and the second fixing plate 19 are all fixed by fastening screws 21; in this embodiment, the guide wheel assembly is adjustable, and the third fixing plate 20 can be removed by removing the fastening screws 21, and then the relative positions of the second guide wheel 15, the third guide wheel 16 and the first guide wheel 14 can be adjusted, so that the second guide wheel 15 and the third guide wheel 16 can be disengaged from the vertical V-groove 17, and then the lifting platform 2 and the first guide wheel 14 can be disassembled, thereby realizing convenient disassembly, which is conducive to installation and maintenance and replacement of parts.

[0028] Specifically, a square mounting portion 22 is provided at the shaft end of the first guide wheel 14, and a groove is provided on the side plate 7 so that the square mounting portion 22 is partially installed therein. In this embodiment, by providing the square mounting portion 22 and the side plate 7 being provided with a groove so that the square mounting portion 22 is partially installed therein, the lifting platform 2 is limited after being connected to the guide wheel assembly, and the lifting platform 2 cannot slide laterally or rotate around the first guide wheel 14, and the lifting is more stable.

[0029] Specifically, the side panel 7 and the mounting portion 22 are fixed by screws 23. In this embodiment, the side panel 7 and the mounting portion 22 are fixed by screws 23, which further enhances the stability of the connection and reduces friction and shaking.

[0030] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process is described in detail below.

[0031] Working principle: When working, the hydraulic cylinder 6 is controlled to extend and retract through an external oil pump. The hydraulic cylinder 6 is preferably a multi-stage telescopic cylinder. Two controllers are installed on the lifting frame 1, which can operate the hydraulic cylinder 6 on the upper and lower working surfaces to realize lifting control. When rising, the hydraulic cylinder 6 controls the piston arm to retract, so that the hydraulic cylinder 6 drives the lifting platform 2 to rise to the working surface outside the bottom cabin. When the lifting platform 2 rises, the balance iron plate 13 drops under gravity, causing the chain 11 to rotate counterclockwise around the guide sprocket 12 to achieve gravity balance with the lifting platform 2, balance the lifting stability of the entire device, and reduce lifting resistance. On the contrary, the lifting platform 2 can be lowered from the upper working surface to the bottom cabin, which is used for personnel to carry materials up and down the bottom cabin, and the lifting During the process, the guide wheel assembly can only be lifted and lowered along the guide groove 3 of the lifting frame 1. Specifically, the V-shaped structure of the outer edge of the rotating wheel of the first guide wheel 14, the second guide wheel 15, and the third guide wheel 16 and the vertical V-shaped groove 17 are limited in other directions and can only be lifted and lowered, so that the lifting platform 2 is very stable. At the same time, the guide wheel assembly is adjustable. By removing the fastening screws 21, the third fixing plate 20 can be removed, and then the relative positions of the second guide wheel 15, the third guide wheel 16 and the first guide wheel 14 can be adjusted, so that the second guide wheel 15 and the third guide wheel 16 can be separated from the vertical V-shaped groove 17. Then the lifting platform 2 and the first guide wheel 14 can be disassembled, which realizes convenient disassembly and is conducive to installation and maintenance and replacement of parts.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic lifting device for a pontoon hold, comprising a lifting frame (1) and a lifting platform (2), characterized in that: The lifting frame (1) includes two vertical guide rails, and the vertical guide rails are provided with vertical guide grooves (3); a fixing plate (4) connecting the two guide rails is welded on the top of the lifting frame (1), and the lifting platform (2) can be lifted and mounted on the two guide rails of the lifting frame (1); a mounting seat (5) is provided on the rear side of the lifting platform (2), and a vertical hydraulic cylinder (6) is fixed through the mounting seat (5), and the end of the piston rod of the hydraulic cylinder (6) is fixedly connected to the bottom surface of the fixing plate (4); two side plates (7) are provided on the rear side of the lifting frame (1), and detachable guide wheel assemblies are respectively installed on the side plates (7), and the guide wheel assemblies can only move vertically along the guide grooves (3).

2. The automatic lifting device for the bottom hold of a pontoon according to claim 1, characterized in that: The lifting platform (2) is provided with a fence, a door (8) that can be opened and closed is provided on the fence via a hinge, and a door lock (9) is provided between the fence and the door (8).

3. The automatic lifting device for the bottom hold of a pontoon according to claim 2, characterized in that: The rear side of the fence of the lifting platform (2) is further provided with a chain fixing portion (10), and the chain fixing portion (10) fixes one end of the chain (11). A guide sprocket (12) is installed on the fixing plate (4), and a balancing iron plate (13) that can be lifted and lowered along the guide groove (3) is installed on the guide rail of the lifting frame (1). The chain (11) is fixedly connected to the upper end of the balancing iron plate (13) after being guided by the guide sprocket (12).

4. The automatic lifting device for the pontoon hold according to claim 1, characterized in that: The guide wheel assembly includes a first guide wheel (14), a second guide wheel (15) and a third guide wheel (16), each including a rotating wheel and a shaft. The outer edges of the rotating wheels are all V-shaped structures. Vertical V-shaped grooves (17) opposite to each other are vertically provided on both sides of the guide groove (3). The first guide wheel (14) is only in close contact with the vertical V-shaped groove (17) on one side, and the second guide wheel (15) and the third guide wheel (16) are in close contact with the vertical V-shaped groove (17) on the other side. Fixing members are provided between the first guide wheel (14) and the second guide wheel (15) and the third guide wheel (16).

5. The automatic lifting device for the bottom hold of a pontoon according to claim 4, characterized in that: The fixing member includes a first fixing plate (18) connecting the first guide wheel (14) and the second guide wheel (15), a second fixing plate (19) connecting the first guide wheel (14) and the third guide wheel (16), a third fixing plate (20) fixed between the first fixing plate (18) and the second fixing plate (19), and the third fixing plate (20) is fixed to the first fixing plate (18) and the second fixing plate (19) by fastening screws (21).

6. The automatic lifting device for the pontoon hold according to claim 4, characterized in that: A square mounting portion (22) is provided at the shaft end of the first guide wheel (14), and a groove is provided on the side plate (7) for partially receiving the square mounting portion (22).

7. The automatic lifting device for the pontoon hold according to claim 6, characterized in that: The side plate (7) and the square mounting portion (22) are fixed via screws (23).

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