KR20130128780A - Lifting-jack with roller - Google Patents

Abstract

The present invention relates to an S-setter for lifting a coaming member and a lifting jack with a roller for operating a lifting device in the S-setter. The lifting jack comprises a piston housing vertically installed on a base frame of the S-setter; a spring installed in the piston housing; a piston which is inserted into the piston housing and is elastically supported by a spring; a pedal having a front end coupled to the base frame to be rotated; and a roller which is coupled to the pedal through a bolt and presses the top end fo the piston. The lifting jack improves the coupling structure of the pedal, enables the easy attachment and detachment thereof, and efficiently operates the piston.

Description

Roller type lifting jack {Lifting-Jack with roller}

The present invention relates to a lifting jack provided in the essetter (S-Setter) that can lift the coaming member, etc. More specifically, provided with a lifting jack for operating the cylinder body provided in the essetter, the lifting jack The front end of the pedal is bolted to the base frame is provided with a roller for pressing the upper end of the piston at the same time, the coupling structure of the pedal is not only rigid and easy to remove, but also relates to a roller type lifting jack smooth piston operation.

Generally, the ship is manufactured by cutting the steel material according to the design, assembling it in blocks and painting it, and installing various equipments and equipment required for the ship on the ship when the basic design of the hull structure and the bulkhead is completed And a process of assembling the steel plates of the block unit on the ship, and then finishing painting is carried out, and the test runs are carried out by launching in the sea.

Here, the processes such as the mounting process of various equipments and equipment and the processes such as the iron plate assembly are performed in the dock, and then, when the manufacturing of the ship is completed, the ship in the dock is towed by sea using the tugboat, will be.

Therefore, the manufacture of the vessel is to weld the steel plate forming the outer plate or the basic structure of the vessel in block units, and to equip various structures on such a structure.

In order to prevent the leakage of water or oil, which may occur in the preceding design work, such as the welding of the plate (coaming) or pipe (coaming) in the form of a plate (plate) or pipe (pipe).

Therefore, the essetter (S-Setter, Saveall-setter) is a device that can easily lift the coaming material or pipe to facilitate the work of the operator.

This essetter is provided with a pedal-type lifting jack 30 for operating the cylinder body 20 provided in the lifting device 70, as shown in Figure 1, the operator presses the pedal 50 to the support plate It will be possible to elevate (10).

However, in the related art, the pedal is pivotally coupled to the main body of the essetter and the separation prevention clip is coupled to the pin so that the pedal is not easily installed and dismantled, and the pivoting structure is not firm. In addition, since the one end of the pedal has an integral piston structure that can be directly rotated on the top of the piston, the piston is not smooth and the piston is not only bent or deformed during long periods of operation. This problem is not easy and the cost also increases.

The present invention has been made to solve the above problems, an object of the present invention is to bolt the pedal to the base frame and at the same time by installing a roller on the pedal to press the upper piston, the operation structure of the pedal In addition to being robust, it is easy to install or dismantle the pedal for easy maintenance, and to provide a roller-type lifting jack smooth piston operation.

In order to achieve the above object, the present invention provides a roller type lifting jack provided for operating the lifting device of the essetter,

The lifting jack may include a piston housing standing upright in the base frame of the essetter, a spring extrapolated to the piston housing, a piston inserted in the piston housing and elastically supported by the spring, and the base frame. It is composed of a rotating part that the front end is rotatably coupled and a pressing part provided to extend a predetermined length from the rotating part, but the rear end of the rotating part is composed of a pedal provided with a roller for pressing the upper end of the piston.

Here, the pivot is bolted to the base frame, and the roller is bolted to the pivot and provided to be rotatable.

In addition, the piston may be composed of a body portion having a predetermined length inserted into the piston housing and a head portion coupled to an upper end of the body portion to be in close contact with the lower side of the roller and having a predetermined area supported by the spring. have.

As described above, the present invention has the effect that the coupling structure of the pedal is not only firm, but also easy to install and dismantle, thereby improving durability and convenience of repair work, and the piston structure is simple and miniaturized. It is possible to reduce the manufacturing cost of the piston, as well as to smoothly operate the piston has the effect of improving the workability.

1 is a side view of an essetter equipped with a roller type lifting jack of the present invention;
Figure 2 is an exploded perspective view of the roller type lifting jack of the present invention,
3 is an assembly view of the roller type lifting jack of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings.

First, the essetter will be described with reference to FIG. 1.

Figure 1 shows a side view of the essetter with a roller type lifting jack of the present invention.

As shown, the essetter (S-Setter, saveall-Setter) is composed of a support plate 10, the lifting device 70 and the base frame 80.

The support plate 10 is formed in a circular plate shape having a predetermined thickness and area, and is a portion capable of fixing a coaming member, a coaming pipe, or the like when the coaming operation is performed on the block.

At this time, the support plate 10 is coupled to the cylinder body 20 of the lifting device 70 to be described below is to be installed to be elevated in the vertical direction.

That is, the support plate 10 is installed to be elevated with the main piston 25 by being coupled in a horizontal state to the upper end of the main piston 25 provided in the cylinder body 20.

On the other hand, the lifting device 70 is for lifting the support plate 10, as shown, the cylinder body 20 and the cylinder body 20 to which the support plate 10 is coupled to the upper portion of the main piston 25 Consists of a lifting jack (30) to operate.

The cylinder body 20 is erected in the center of the base frame 80 to be described below, the lifting jack 30 is provided on the upper side of the base frame 80 is provided to be connected to the cylinder body 20.

Here, the lifting device 70 may be a hydraulic or pneumatic cylinder device, the lifting jack 30 is connected to the cylinder body 20, such as a jack commonly used to the cylinder body 20 by using hydraulic or pneumatic The main piston 25 to be installed is to be elevated.

Meanwhile, a cradle 26 having a predetermined size is installed at the central portion of the cylinder body 20 of the lifting device 70.

The cradle 26 is for mounting various small equipment or members, and is provided in a rectangular container shape having a predetermined depth, and a handle 27 may be installed at an upper end of the cradle to facilitate handling of the essetter. have.

On the other hand, the base frame 80 supports the support plate 10 and the lifting device 70, four square support frame 81 is provided in the cross shape, each of the support frame 81, the lower end of the S Wheels 82 are respectively installed to facilitate the movement of the setter.

At this time, the cylinder body 20 of the lifting device 70 is installed in the center of the base frame 80, the lifting jack 30 is installed on one support frame 81.

Therefore, the worker can lift the support plate 10 by stepping on the pedal 50 provided in the lifting jack 30.

Here, the lifting operation of the main piston 25 of the cylinder body 20 by the lifting jack 30 is the same as the operation principle of the general hydraulic jack.

Hereinafter, the roller type lifting jack of the present invention will be described in detail with reference to FIGS. 2 and 3.

Figure 2 shows an exploded perspective view of the roller type lifting jack of the present invention, Figure 3 is an assembly view of the roller type lifting jack of the present invention.

As shown, the roller type lifting jack of the present invention is composed of a piston housing 31, a spring 32, a piston 40, and a pedal 50.

The piston housing 31 is installed on the support frame 81 of the base frame 80 and is connected to the cylinder body 20 so that hydraulic pressure or pneumatic pressure is transmitted to the cylinder body 20, and a piston (described below) 40) is inserted and installed to be movable in the up and down directions.

At this time, the spring 32 is extrapolated to the outside of the piston housing (31).

The spring 32 serves to elastically support the lower surface of the head portion 45 of the piston 40 to add an elastic force so that the piston 40 is restored to its original position.

On the other hand, the piston 40 is composed of a circular body portion 41 having a predetermined diameter and the head portion 45 provided on the upper end of the body portion 41.

The body portion 41 is inserted into the piston housing 31 through the spring 32, the head portion 45 is provided on the upper portion of the body portion 41 of the piston (40).

Head portion 45 is provided in the form of a circular plate having a predetermined thickness and area, the body portion 41 is coupled to the center of the lower side.

The head portion 45 is a portion in which the upper surface is pressed by the roller 55 to be described below, is installed horizontally on the upper portion of the body portion 41, so that the lower surface is elastically supported by the spring (32). It is formed to have a diameter larger than the outer diameter of the spring (32).

On the other hand, the pedal 50 is to operate the cylinder body 20 by pressing the piston 40 downward, it is composed of a rotating portion 51 and the pressing portion 56.

Rotating portion 51 is rotatably coupled to the top end of the pedal support 90 is installed on the base frame 80.

At this time, the coupling hole 51a is formed through the tip of the rotating part 51.

Therefore, the pivoting portion 51 is coupled to the pedal support 90 by the bolt 52 and the nut 53, so that the pivoting portion 51 is easily detachable.

Meanwhile, the roller 55 is coupled to the rear end of the pivot 51.

The roller 55 is installed to be rotated by the bolt 52 and the nut 53 by using the coupling hole 51b formed at the rear end of the pivoting part 51.

Here, the roller 55 is rotatably coupled to the rear end side of the pivoting part 51, the head part 45 in contact with the upper surface of the head portion 45 of the piston 40 in response to the operation of the pedal (50) Will be pressed.

Therefore, when the operator presses the pressing part 56 of the pedal 50 to rotate the rotating part 51, the roller 55 coupled to the rear end of the rotating part 51 is the head part 45 of the piston 40. The upper surface is pressed downward, and the piston 40 moves downward when the piston 40 is inserted into the piston housing 31 to transfer hydraulic pressure to the cylinder body 20 to operate the main piston 25. .

At this time, the spring 32 is elastically supporting the head portion 50 of the piston 40 to be returned to its original position to enable a continuous pumping operation.

Therefore, in the present invention, the rotating part of the pedal is bolted to the base frame and the roller presses the upper end of the piston, so that the coupling structure of the pedal is not only firm and easy to install or dismantle, but also to smoothly operate the piston to improve the durability of the piston. You will be able to.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities.

Description of the Related Art [0002]
10: support plate 20: cylinder body
25: main piston 26: holder
27: handle 30: lifting jack
31: piston housing 32: spring
40: piston 41: body portion
45: head 50: pedal
51: rotating part 51a, 51b: coupling hole
56 pressurization 60 lifting device
80: base frame 81: support frame
82: wheel 90: pedal support

Claims (3)

In the roller lifting jack provided to operate the lifting device of the essetter,
The lifting jack,
A piston housing standing upright in the base frame of the essetter;
A spring extrapolated to the piston housing;
A piston inserted and installed in the piston housing, the piston being elastically supported by the spring; And
A pedal provided with a rotating part having a front end rotatably coupled to the base frame and a pressing part provided to extend a predetermined length from the rotating part, and having a roller for pressing an upper end of the piston at a rear end of the rotating part;
Roller type lifting jack, characterized in that consisting of. The method of claim 1,
The rotating unit is bolted to the base frame, the roller is a roller type lifting jack, characterized in that the bolt is provided to be rotated by the rotating unit. 3. The method of claim 2,
The piston is composed of a body portion of a predetermined length that is inserted into the piston housing and the head portion is coupled to the upper end of the body portion is in close contact with the roller lower portion and has a predetermined area supported by the spring on the lower side. Roller type lifting jack.

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