Marine hydraulic lifting device

Abstract

The utility model is applicable to the technical field of hydraulic lifting mechanisms, and discloses a marine hydraulic lifting device which is characterized in that a placing plate is fixedly mounted at the top of a piston rod of a hydraulic pushing cylinder, fixing plates are fixedly mounted on the surfaces of the two ends of the side edge of a mounting base, and a sliding plate is slidably mounted on the surface of the top of each fixing plate; a telescopic supporting mechanism is rotationally installed at the top of the sliding plate, the top of the telescopic supporting mechanism is rotationally installed on the outer side of the containing plate, and limiting mechanisms are arranged on the two sides of the exterior of the sliding plate. According to the technical scheme, after the hydraulic pushing cylinder provides corresponding vertical pushing force for the placing plate to enable the placing plate to be vertically lifted to the corresponding use height, the second hollow pipe and the movable rod can be pulled to extend along with the second hollow pipe and the movable rod; and therefore, the first hollow pipe, the second hollow pipe and the movable rod can always incline from the two sides of the exterior of the placing plate to provide lateral supporting force for the placing plate, and the situation that the using stability of the placing plate is affected due to random shaking after the placing plate is lifted too high is avoided.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic lifting mechanism technology, and in particular to a marine hydraulic lifting device. Background Technology

[0002] Currently, large marine multi-purpose hydraulic work platforms are used to install large parts such as rudder blades. The lifting device is the main functional device of the platform equipment. The lifting device is used to support the platform and provide vertical lifting and lowering movement for the platform. Moreover, the lifting device often needs to stay at a certain height for a period of time.

[0003] However, when using hydraulic lifting mechanisms to assist in ship assembly, hydraulic cylinders are often used to provide lifting and lowering assistance by pushing the top object placement plate. However, the hydraulic cylinders can only provide lifting support from the bottom of the placement plate, and cannot provide support from other positions when the plate is moved to the appropriate height and stopped. This easily causes the placement plate to sway when at a high position, affecting the stability of the workpieces placed on its surface. Therefore, we propose a marine hydraulic lifting device. Utility Model Content

[0004] The main objective of this invention is to provide a marine hydraulic lifting device that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A marine hydraulic lifting device includes a mounting base, on both sides of the top of the mounting base, a hydraulic push cylinder is vertically fixedly mounted, a placement plate is fixedly mounted on the top of the piston rod of the hydraulic push cylinder, and a fixing plate is fixedly mounted on both ends of the side surface of the mounting base.

[0007] Each of the fixed plates has a sliding plate slidably mounted on its top surface, and a telescopic support mechanism is rotatably mounted on the top of the sliding plate, with the top of the telescopic support mechanism rotatably mounted on the outside of the placement plate.

[0008] Limiting mechanisms are provided on both sides of the outer side of the sliding plate.

[0009] By adopting the above technical solution, through the cooperation of the limiting mechanism and the telescopic support mechanism, the hydraulic push cylinder provides the placement plate with the corresponding vertical pushing force to raise it vertically to the corresponding usage height. The second hollow tube and the movable rod can be pulled and extended accordingly, so that the first hollow tube, the second hollow tube and the movable rod can always tilt from both sides of the placement plate to provide lateral support force, avoiding arbitrary shaking of the placement plate after it is raised too high, which would affect its stability.

[0010] As an optional solution to the technical solution of this application, a first connecting plate is vertically fixedly installed on both sides of the top of the sliding plate, and a first rotating rod is rotatably installed inside the middle of each of the two sets of the first connecting plates through a bearing. A second connecting plate is fixedly installed on both sides of the placement plate, and a second rotating rod is rotatably installed inside the middle of each pair of the second connecting plates through a bearing.

[0011] By adopting the above technical solution, the overall mechanism transmission rationality can be ensured through the rotational connection between the first rotating rod and the second rotating rod.

[0012] As an optional solution to the technical solution of this application, the telescopic support mechanism includes a first hollow tube, a second hollow tube, and a movable rod. The first hollow tube is fixedly sleeved through the middle of the first rotating rod. The second hollow tube is slidably inserted into the first hollow tube. The movable rod is slidably inserted into the second hollow tube, and the top of the movable rod is fixedly sleeved through the outside of the second rotating rod. The top sides of both the first and second hollow tubes are threaded with tightening bolts. The outer sides of both the second hollow tube and the movable rod are vertically provided with sliding grooves, and the tightening bolts are slidably inserted into the sliding grooves.

[0013] By adopting the above technical solution, after the first hollow tube, the second hollow tube, and the movable rod are slidably connected to each other, and under the tightening and limiting action of the tightening bolt, the hydraulic push cylinder provides the placement plate with the corresponding vertical pushing force to raise it vertically to the corresponding working height. The second hollow tube and the movable rod can then be pulled and extended, so that the first hollow tube, the second hollow tube, and the movable rod can always tilt from both sides of the outside of the placement plate to provide lateral support force, thus preventing the placement plate from swaying arbitrarily after being raised too high and affecting its stability.

[0014] As an optional solution to the technical solution of this application, the limiting mechanism includes limiting bolts. Each sliding plate has a mounting plate vertically fixedly installed on both ends of its side surface, and the mounting plate slides against the outside of the fixed plate. Each mounting plate has a limiting bolt threaded through and screwed into its middle end. Each fixed plate has a limiting groove inside its side surface, and the limiting bolt slides into the limiting groove.

[0015] By adopting the above technical solution, the sliding plate is prevented from moving arbitrarily by using the limiting bolts to limit its rotation and movement, thus ensuring that the sliding plate will not affect the stability of the support.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. A marine hydraulic lifting device according to the technical solution of this application, wherein a first hollow tube and a movable rod are rotatably mounted on the outside of a sliding plate and a placement plate respectively by means of a first rotating rod and a second rotating rod, so that when the first rotating rod and the second rotating rod rotate, the first hollow tube and the movable rod can rotate relative to each other on the outside of the sliding plate and the placement plate. In addition, a second hollow tube is inserted into the first hollow tube, and the movable rod is inserted into the inside of the second hollow tube. After the hydraulic push cylinder provides a corresponding vertical pushing force to the placement plate to lift it vertically to the corresponding working height, the second hollow tube and the movable rod can be pulled and extended accordingly. This allows the first hollow tube, the second hollow tube and the movable rod to always tilt from both sides of the outside of the placement plate to provide lateral support force, avoiding arbitrary swaying of the placement plate after it is lifted too high, which would affect its stability.

[0018] 2. A marine hydraulic lifting device according to the technical solution of this application, by setting limit bolts on both sides of the sliding plate and sliding the sliding plate to the outside of the fixed plate, allows the second hollow tube and the movable rod to be completely removed after the placement plate is raised too high. The sliding plate can be pushed to adjust the inclination of the hollow tube and the movable rod on the side of the placement plate. By reducing the inclination, the hollow tube and the movable rod can still provide support from the side of the placement plate after it is raised vertically, thereby further improving the rationality of the overall mechanism. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a marine hydraulic lifting device according to the present invention;

[0020] Figure 2 This is a front view structural diagram of the telescopic support assembly of a marine hydraulic lifting device according to the present invention;

[0021] Figure 3 This is an enlarged structural diagram of part A of a marine hydraulic lifting device according to this utility model.

[0022] Reference numerals: 1. Mounting base; 11. Hydraulic push cylinder; 12. Placement plate; 2. Fixing plate; 21. Sliding plate; 22. First connecting plate; 23. First rotating rod; 24. First hollow tube; 25. Second hollow tube; 26. Movable rod; 27. Tightening bolt; 28. Sliding groove; 3. Second connecting plate; 31. Second rotating rod; 4. Mounting plate; 41. Limiting bolt; 42. Limiting groove. Detailed Implementation

[0023] like Figure 1-3 As shown, this utility model provides a technical solution: a marine hydraulic lifting device, wherein hydraulic push cylinders 11 are vertically fixedly installed on both sides of the top of the mounting base 1, and a placement plate 12 is fixedly installed on the top of the piston rod of the hydraulic push cylinder 11.

[0024] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown, the top sides of the first hollow tube 24 and the second hollow tube 25 are both threaded and screwed with a locking bolt 27. The outer sides of the second hollow tube 25 and the movable rod 26 are both vertically provided with sliding grooves 28, and the locking bolts 27 are slidably inserted into the sliding grooves 28.

[0025] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown), the sliding plate 21 is provided with a limit mechanism on both sides of the outside. The limit mechanism includes a limit bolt 41. Each sliding plate 21 has a mounting plate 4 vertically fixed on both ends of its side surface, and the mounting plate 4 slides against the outside of the fixed plate 2. Each mounting plate 4 has a limit bolt 41 screwed through the thread at the middle.

[0026] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown, a fixing plate 2 is fixedly installed on both ends of the side surface of the mounting base 1. A sliding plate 21 is slidably installed on the top surface of each fixing plate 2. A telescopic support mechanism is rotatably installed on the top of the sliding plate 21, and the top of the telescopic support mechanism is rotatably installed on the outside of the placement plate 12. The telescopic support mechanism includes a first hollow tube 24, a second hollow tube 25 and a movable rod 26. The first hollow tube 24 is fixedly sleeved through the middle of the first rotating rod 23. The second hollow tube 25 is slidably inserted into the first hollow tube 24. The movable rod 26 is slidably inserted into the second hollow tube 25, and the top of the movable rod 26 is fixedly sleeved through the outside of the second rotating rod 31.

[0027] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown, each fixed plate 2 has a limiting groove 42 inside both ends of its side, and the limiting bolt 41 is slidably inserted into the limiting groove 42.

[0028] During operation, the ship assembly workpiece to be lifted and lowered is placed on the surface of the placement plate 12. Then, the clamping bolts 27 and the limiting bolts 41 are reversed, causing them to move away from the inner walls of the sliding groove 28 and the limiting groove 42. An external control switch then activates the hydraulic push cylinder 11, causing it to rotate and move the placement plate 12 vertically. This moves the ship assembly workpiece on the surface of the placement plate 12. Simultaneously, the pulling action of the placement plate 12 provides a corresponding pulling force to the movable rod 26, allowing it to be lifted outward from inside the second hollow tube 25. This also simultaneously lifts the second hollow tube 25 outward from inside the first hollow tube 24, allowing the first hollow tube 24, the second hollow tube 25, and the movable rod 26 to be stretched and extended, while the placement plate 12 continues to rise vertically. When a continuous pulling force is applied to the first hollow tube 24, the second hollow tube 25, and the movable rod 26, the sliding plate 21 can move horizontally on the top surface of the fixed plate 2 simultaneously. Then, under the rotation of the first rotating rod 23 and the second rotating rod 31, the first hollow tube 24 and the movable rod 26 rotate relative to each other on the outside of the sliding plate 21 and the placement plate 12, respectively. After the placement plate 12 moves to the corresponding height, the tightening bolt 27 and the limiting bolt 41 are tightened so that their sides are pressed against the inner sidewalls of the sliding groove 28 and the limiting sliding groove 42, thus fixing the position of the sliding plate 21, the second hollow tube 25, and the movable rod 26. This allows the first hollow tube 24, the second hollow tube 25, and the movable rod 26 to support the placement plate 12 from both sides, and then the ship parts placed on the surface of the placement plate 12 can be assembled and used.

Claims

1. A marine hydraulic lifting device comprising a mounting base (1), characterised in that: The both sides of the top of the mounting base (1) are vertically fixedly installed with hydraulic push cylinders (11), the piston rod top of the hydraulic push cylinder (11) is fixedly installed with a placing plate (12), the both ends of the side surface of the mounting base (1) are fixedly installed with fixed plates (2); The top surface of each fixed plate (2) is slidably installed with a sliding plate (21), the top of the sliding plate (21) is rotatably installed with a telescopic supporting mechanism, and the top of the telescopic supporting mechanism is rotatably installed outside the placing plate (12); The both sides of the outside of the sliding plate (21) are provided with limiting mechanisms.

2. A marine hydraulic lifting device according to claim 1, characterised in that: The both side surfaces of the top of the sliding plate (21) are vertically fixedly installed with first connecting plates (22), the middle ends of the two groups of first connecting plates (22) are rotatably installed with first rotating rods (23) through bearings, the both end surfaces of the side edges of the placing plate (12) are fixedly installed with second connecting plates (3), and the middle ends of every two groups of second connecting plates (3) are rotatably installed with second rotating rods (31) through bearings.

3. A marine hydraulic lifting device according to claim 2, characterised in that: The telescopic supporting mechanism comprises a first hollow pipe (24), a second hollow pipe (25) and a movable rod (26), the middle end of the first rotating rod (23) penetrates and is fixedly sleeved with the first hollow pipe (24), the inside of the first hollow pipe (24) is slidably inserted with the second hollow pipe (25), the inside of the second hollow pipe (25) is slidably inserted with the movable rod (26), and the top of the movable rod (26) penetrates and is fixedly sleeved outside the second rotating rod (31).

4. A marine hydraulic lifting device according to claim 3, characterised in that: The both side edges of the top of the first hollow pipe (24) and the second hollow pipe (25) are screwed with abutting bolts (27) through threads, the outside of the second hollow pipe (25) and the movable rod (26) is vertically provided with sliding grooves (28), and the abutting bolts (27) are slidably inserted into the inside of the sliding grooves (28).

5. A marine hydraulic lifting device according to claim 1, characterised in that: The limiting mechanism comprises a limiting bolt (41), the both end surfaces of the side edges of each sliding plate (21) are vertically fixedly installed with mounting plates (4), the mounting plates (4) are slidably attached to the outside of the fixed plates (2), and the middle end of each mounting plate (4) is screwed with a limiting bolt (41) through a thread.

6. A marine hydraulic lifting device according to claim 1, characterised in that: The both end interiors of the side edges of each fixed plate (2) are provided with limiting sliding grooves (42), and the limiting bolts (41) are slidably inserted into the inside of the limiting sliding grooves (42).

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