KR20130128779A - Lifting-jack with removable piston - Google Patents

Lifting-jack with removable piston Download PDF

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Publication number
KR20130128779A
KR20130128779A KR1020120052797A KR20120052797A KR20130128779A KR 20130128779 A KR20130128779 A KR 20130128779A KR 1020120052797 A KR1020120052797 A KR 1020120052797A KR 20120052797 A KR20120052797 A KR 20120052797A KR 20130128779 A KR20130128779 A KR 20130128779A
Authority
KR
South Korea
Prior art keywords
piston
lifting jack
coupled
pedal
jack
Prior art date
Application number
KR1020120052797A
Other languages
Korean (ko)
Inventor
이창윤
Original Assignee
현대중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대중공업 주식회사 filed Critical 현대중공업 주식회사
Priority to KR1020120052797A priority Critical patent/KR20130128779A/en
Publication of KR20130128779A publication Critical patent/KR20130128779A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
    • B66F7/18—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by a single central jack
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F2700/00—Lifting apparatus
    • B66F2700/05—Hydraulic jacks

Abstract

The present invention relates to a detachable piston type lifting jack provided in an S-setter capable of lifting a coaming member, the piston type lifting jack provided to operate a lifting device of the essetter, wherein the lifting jack Is provided with a piston housing standing up to the base frame, a spring extrapolated to the piston housing, and a piston inserted into the piston housing, the piston is coupled to the upper head portion by the head portion is rotatably coupled to the pedal The present invention relates to a detachable piston type lifting jack which is provided with a detachable type that can separate the piston from the head portion, thereby simplifying installation and disassembly of the piston and easy maintenance.

Description

Lifting-Jack with removable piston}

The present invention relates to a detachable piston type lifting jack provided in an S-setter for lifting a coaming member and the like, and more particularly, having a lifting jack for operating a cylinder mounted to the essetter. The present invention relates to a detachable piston type lifting jack which is easy to maintain the piston when used for a long period of time by constructing the piston installed in the lifting jack in a separate type.

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).

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

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 stepped on the pedal 60 to support the plate It will be possible to elevate (10).

However, in the related art, since the upper end of the piston has an integral piston structure that is directly rotatable to the pedal, the piston may bend or deform as well as damaged when the pedal is operated for a long time. In case of breakage, the entire piston needs to be replaced, and thus the maintenance work is not easy and the cost increases.

The present invention has been made to solve the above problems, the object of the present invention is to make the piston is provided in the lifting jack and detachable to detach from the pedal connection at the same time, easy to manufacture and install or dismantle It is to provide a separate piston type lifting jack which is simple and easy to maintain.

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

The lifting jack is a piston housing standing on the base frame, a spring extrapolated to the piston housing, a piston inserted into the piston housing to move up and down, and coupled to the upper piston, the spring A head portion supported by the head portion, and a pivot portion rotatably coupled to the base frame and a press portion provided to extend a predetermined length from the pivot portion, but the rear end of the pivot portion is rotatably coupled to the head portion. Consisting of a pedal.

Here, the head portion is coupled to the upper end of the piston and the support block is elastically supported by the spring and the pair of supports are installed standing on both ends of the support block facing each other so that one end of the pedal can be coupled to each other do.

In addition, the support block is provided with a coupling hole formed in the upper, anti-directional direction, the piston is preferably the upper end screwed to the coupling hole.

As described above, the present invention has a simple structure of the piston and can be miniaturized to reduce the manufacturing cost of the piston, and also to maintain or replace the piston when the piston is damaged due to long-term use. It is simple and easy to maintain and has the effect of improving productivity.

1 is a side view of an essetter equipped with a detachable piston type lifting jack of the present invention;
Figure 2 is an exploded perspective view of a separate piston lifting jack of the present invention,
3 is an assembly view of the 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 separate piston 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 operator can lift the support plate 10 by stepping on the pedal 60 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 separate piston 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 separate piston type lifting jack of the present invention, Figure 3 shows an assembly view of the lifting jack of the present invention.

As shown, the separate piston type lifting jack of the present invention consists of a piston housing 31, a spring 32, a piston 40, a head portion 50 and a pedal 60.

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 coupled 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 part 50 to add elastic force to restore the piston 40 to its original position. The spring 32 is installed to be fitted to the outer side of the piston housing 31 and the piston 40. do.

On the other hand, the piston 40 is composed of a circular body portion 41 having a predetermined diameter and the coupling portion 42 provided on the upper portion of the body portion 41.

The body portion 41 is inserted into the piston housing 31 is installed, the coupling portion 42 is coupled through the head portion 50 to be described below.

At this time, a screw thread is formed on the outer circumferential surface of the coupling part 42 to be screwed to the lower portion of the head part 50.

Therefore, when bending, deformation or breakage of the piston 40 occurs, the operator can easily separate the piston 40 from the head part 50 and repair or replace it.

On the other hand, the head 50 is coupled to the upper end of the piston 40 serves to transfer the rotational movement of the pedal 60 to the piston 40, it is composed of a support block 51 and the support (55).

The support block 51 is formed in a circular shape, the diameter is larger than the spring 32, the lower surface is elastically supported by the spring 32, the coupling hole 53 is formed in the center portion.

Accordingly, the spring 32 is extrapolated to the piston 40 and the piston housing 31 so that the upper end thereof is elastically supported to support the lower surface of the support block 51.

On the other hand, the coupling hole 53 of the head portion 50 is formed with a tap (tap) on the inner peripheral surface.

Therefore, the piston 40 is capable of screwing the coupling portion 42 to the coupling hole 53 of the support block 51, it can be installed detachably detachable or coupled.

The lower surface of the support block 51 is provided with a guide portion 52 protruding downward to a predetermined length to be fitted to the spring (32).

Meanwhile, the pedal 60 is rotatably coupled between the supports 55 of the head 50.

That is, the support 55 is provided as a pair so as to stand up to each other at a predetermined height on both sides of the upper end of the support block 51 to face each other, the pedal 60 is coupled to be rotatable.

At this time, the support 55 is formed through the shaft hole 56 so that the upper side is located on the same center line with each other, the pedal 50 is rotatably coupled to the shaft hole 56 by using the bolt (57).

On the other hand, the pedal 60 is composed of a rotating portion 61 and the pressing portion (65).

Rotating portion 61 is rotatably coupled to the upper end of the pedal support 90, the front end is separately installed on the support frame 81, the pressing portion 65 is provided to extend a predetermined length from the rotating portion 61. .

At this time, the rear end of the rotating part 61 is rotatably coupled between the two supporters 55 of the head part 50.

Therefore, when the operator presses the pressing part 65 of the pedal 60 to rotate the rotating part 61, the rear end of the rotating part 61 presses the head part 50 downward, and at this time, the head part 50 ) Moves the piston 40 inserted into the piston housing 31 in the downward direction to transmit hydraulic pressure to the cylinder body 20 to operate the main piston 25.

At this time, the spring 32 is to support the head portion 50 to be returned to its original position to enable a continuous pumping operation.

Therefore, the present invention is configured to be detached from the head portion so that the piston is detachable, it is possible to miniaturize the piston, easy to manufacture, easy to install or dismantle, easy to maintain.

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
42: coupling portion 50: head portion
51: support block 52: guide part
53: coupling hole 55: support
56: shaft 60: pedal
61: rotating part 65: pressurizing part
70: lifting device 80: base frame
81: support frame 82: wheels
90: pedal support

Claims (3)

In the piston type lifting jack provided for operating the lifting device of the essetter,
The lifting jack,
A piston housing standing on the base frame;
A spring extrapolated to the piston housing;
A piston inserted into the piston housing and moving up and down;
A head portion coupled to an upper portion of the piston and supported by the spring; And
A pedal configured to include a pivoting part having a front end rotatably coupled to the base frame and a pressing part provided to extend a predetermined length from the pivoting part, and a rear end of the pivoting part rotatably coupled to the head part;
Split piston type lifting jack, characterized in that consisting of. The method of claim 1,
Wherein:
A support block coupled to the upper end of the piston and elastically supported by the spring; And
A pair of supports standing upright at both ends of the support block so that one end of the pedal is coupled to face each other;
Split piston type lifting jack, characterized in that consisting of. 3. The method of claim 2,
The support block is provided with a coupling hole formed in the upper, anti-passing direction, the piston is separated piston type lifting jack, characterized in that the upper end screwed to the coupling hole.













KR1020120052797A 2012-05-18 2012-05-18 Lifting-jack with removable piston KR20130128779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120052797A KR20130128779A (en) 2012-05-18 2012-05-18 Lifting-jack with removable piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120052797A KR20130128779A (en) 2012-05-18 2012-05-18 Lifting-jack with removable piston

Publications (1)

Publication Number Publication Date
KR20130128779A true KR20130128779A (en) 2013-11-27

Family

ID=49855783

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120052797A KR20130128779A (en) 2012-05-18 2012-05-18 Lifting-jack with removable piston

Country Status (1)

Country Link
KR (1) KR20130128779A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101964465B1 (en) * 2018-12-23 2019-07-31 주식회사 경동엔지니어링 Press device
GB2571055A (en) * 2017-11-02 2019-08-21 Mckay George Trolly jack leaver return spring

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2571055A (en) * 2017-11-02 2019-08-21 Mckay George Trolly jack leaver return spring
KR101964465B1 (en) * 2018-12-23 2019-07-31 주식회사 경동엔지니어링 Press device

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