KR20160002568U - Open-Close Device for Manhole cover - Google Patents

Abstract

The present invention provides a manhole cover opening and closing device. The manhole cover opening / closing device of the present invention comprises a wire; A wire operating part for pulling or releasing the wire; And a support member which is symmetrically disposed on both sides of the manhole cover and is coupled to the manhole cover and connected to the wire, The support member includes a main frame; A connecting part installed on the main frame and detachably coupled to the manhole cover; And a control unit connected to the main frame and connected to the wire, wherein the wire is vertically erected by the wire pulled by the wire actuating part or is released by the wire actuating part, And a leg portion extending outwardly.

Description

{Open-Close Device for Manhole cover}

The present invention relates to a manhole cover opening / closing device used for opening and closing a manhole cover for blocking a manhole installed on a ship or the like.

In general, a manhole for a ship is a hole that can be used by a worker for welding, communication, painting, and the like, or as a ventilation means for ventilation inside a ship. These manholes are formed from several tens to several hundreds on the deck depending on the size and purpose of the ship when it is dried.

In particular, a manhole cover, such as a walking hole or an access hole, which is sized to allow an operator to approach the inside of the ship's deck at the upper portion of the ship, is provided with a manhole cover for blocking the manhole so that the pedestrian and the operator are not removed.

Since the manhole cover used to prevent such a safety accident is formed of steel having a large specific gravity, it is difficult to install due to its large weight. Because of the large weight of the manhole cover, the manhole cover is lifted or lowered There is a problem that considerable difficulties are encountered.

The present invention is to provide a manhole cover opening / closing device capable of safely and easily opening and closing a manhole cover of a ship.

The present invention is directed to providing a manhole cover opening / closing device that can be used for various sizes of manhole covers.

The present invention is to provide a manhole cover opening / closing device that is easy to store and transport.

The tasks to be solved by the present invention are not limited thereto, and other tasks not mentioned may be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a manhole cover including: a first support member and a second support member symmetrically disposed on both sides of a manhole cover to be engaged with a manhole cover; And an elevating member for elevating the first supporting member and the second supporting member.

The first support member may include a first main frame; A first horizontal arm provided on the first main frame and having a first connection portion coupled to the manhole cover; And a first leg portion hinged to the first main frame, wherein the second support member comprises a second main frame; A second horizontal arm provided on the second main frame and having a second connection portion coupled to the manhole cover; And a second leg portion hinged to the second main frame.

The height of the first main frame and the height of the second main frame can be raised by vertically erecting the first leg portion and the second leg portion by the elevating member.

Further, the elevating member may include a wire connecting the first leg portion and the second leg portion; And a wire actuating portion for pulling or releasing the wire so that the first leg portion and the second leg portion are opened or vertically extended to the outside of the manhole cover.

Each of the first connection portion and the second connection portion may include a boss installed in the first horizontal arm and the second horizontal arm; The upper end is freely rotatable on the boss, and the lower end is a bolt fastened to a screw hole formed in the manhole cover. And a handle for rotating the bolt.

Also, the first horizontal arm and the second horizontal arm may be folded or folded folded on the first main frame and the second main frame.

In addition, the lengths of the first main frame and the second main frame may be variable.

The connecting portion may be adjustable in a first direction, which is a longitudinal direction of the horizontal arm, on the horizontal arm.

The horizontal arm may be adjustable in a second direction orthogonal to the first direction on the main frame.

According to one aspect of the present invention, a wire; A wire operating part for pulling or releasing the wire; And a support member which is symmetrically disposed on both sides of the manhole cover and is coupled to the manhole cover and connected to the wire, The support member includes a main frame; A connecting part installed on the main frame and detachably coupled to the manhole cover; And a control unit connected to the main frame and connected to the wire, wherein the wire is vertically erected by the wire pulled by the wire actuating part or is released by the wire actuating part, The present invention also provides a manhole cover opening / closing device including a leg portion extending outward.

According to the embodiment of the present invention, the manhole cover of a ship can be safely and easily opened and closed.

According to the embodiment of the present invention, since the position of the connecting portion can be adjusted, it has a remarkable effect that can be used for opening and closing a manhole cover of various sizes.

According to the embodiment of the present invention, the length adjustment and the folding structure of the main frame and the horizontal arm have a remarkable effect of facilitating storage and transportation.

1 is a perspective view showing a manhole cover opening / closing apparatus according to an embodiment of the present invention.
2 is a plan view showing a manhole cover opening / closing apparatus according to an embodiment of the present invention.
3 is a side view showing a manhole cover opening / closing apparatus according to an embodiment of the present invention.
4 is a view for explaining the operation of the manhole cover opening / closing apparatus.
5 and 6 are views showing a manhole cover opening / closing apparatus according to another embodiment of the present invention.
7 is a view showing a modification of the first horizontal arm.
8 is a view showing a modification of the first main frame.
9 is a view showing a modified example of the first supporting member.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. It should be understood, however, that the intention is not to limit the invention to the particular embodiments, but to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. In the following description of the present invention, a detailed description of related arts will be omitted if it is determined that the gist of the present invention may be blurred.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

Also, in the present invention, the term 'composition' is used to mean the meaning of 'mixture', unless otherwise specified or contrary to the overall contents of the design.

(Example)

FIG. 1 is a perspective view showing a manhole cover opening and closing apparatus according to an embodiment of the present invention, FIG. 2 is a plan view showing a manhole cover opening and closing apparatus according to an embodiment of the present invention, FIG. 3 is a cross- FIG. 2 is a side view showing a manhole cover opening / closing device according to the present invention.

1 to 3, the manhole 20 constructed on the ship includes a manhole opening 22 through which a person can enter and exit on the deck (deck) of the ship 1. The function and installation of the manhole 20 can be realized by the conventional art, and thus a detailed description thereof will be omitted.

The manhole cover 30 is provided to seal the manhole opening 22 in the form of a plate. The shape of the manhole cover 30 can be made to match the shape of the manhole opening 22. The shape of the manhole cover 30 can be provided in various shapes such as an ellipse or a square using a lot of circles. The fastening of the manhole cover 30 is performed by fixing bolts 24 which are fixedly arranged along the rim of the manhole opening 22 and are erected upright and the fixing bolts 24 along the periphery of the manhole cover 30 corresponding thereto, A manhole cover 30 is fixed to the upper portion of the manhole 32 by fastening a separate locking nut 34 to a fixing bolt 24 protruding upward through the through hole 32, And fixed.

On the other hand, the manhole cover 30 must be lifted or lowered to open or close the manhole 20. Of course, the fastening nut 34 coupled to the fastening bolt 24 passing through the perimeter of the manhole cover 30 must be loosened before that. In order to easily lift or lower the manhole cover 30, the manhole cover opening / closing device 10 according to the present invention is used.

1 to 3, the manhole cover opening / closing apparatus 10 includes a first supporting member 100, a second supporting member 200, and an elevating member 300.

The first support member 100 and the second support member 200 are symmetrically arranged with a certain distance from each other. The first support member 100 and the second support member 200 may be disposed on both sides of the manhole cover 30 when the manhole cover 30 is opened and closed.

The first support member 100 includes a first main frame 110, a first horizontal arm 120, and a first leg 130. The second support member 200 includes a second main frame 210, a second horizontal arm 220, and a second leg 230.

In this embodiment, the first support member 100 and the second support member 200 have the same configuration. Therefore, the structure of each support member will be described in detail below with reference to the first support member 100, and the description of the structure of the second support member 200 will be omitted.

The first main frame 110 has a horizontal bar shape. The first main frame 110 is supported by two first legs 130.

The first leg 130 is hinged to the first main frame 110. The first leg portion 130 can be vertically erected or opened by the lifting member 300. [ That is, the first leg portion 130 is vertically erected by the wire 310 pulled by the wire actuating portion 320, or is pulled out of the manhole cover by the wire released by the wire actuating portion. When the first leg 130 is opened, the height of the first main frame 110 is lowered. When the first leg 130 is vertically raised, the height of the first main frame 110 is increased.

When the first leg portion 130 is opened, the first connecting portion 122 is lowered to a proper height that can be engaged with the manhole cover 30. Since the first leg portion 130 is provided with the wheel 138, it is easy to open or stand upright. In addition, the wheel 138 is provided so that the manhole cover 30 can be easily moved in the lifted state. Although not shown, the wheel 138 may be provided with a locking device for preventing unnecessary movement.

On the other hand, while the embodiment of Fig. 1 shows two legs 130, it will be appreciated that other numbers of support members sufficient to support the manhole cover 30 may also be used.

The first horizontal arm 120 is installed at both ends of the first main frame 110. In certain embodiments, the first main frame 110 and the first horizontal arm 120 may be manufactured as an integral assembly. In certain embodiments, the first main frame 110 and the first horizontal arm 120 may be individual pieces that are mutually coupled using so-called attachment techniques known in the art. The first horizontal arm 120 may be secured to the first main frame 110 through fasteners such as screws disposed through holes (not shown).

The first horizontal arm 120 is installed in the Y direction perpendicular to the X direction which is the longitudinal direction of the first main frame 110. The first main frame 110 and the first horizontal arm 120 have a substantially "C" shape as viewed from above. The first horizontal arm 120 has a connecting portion 122.

The connecting portion 122 is provided at one end of the first horizontal arm 120 so as to be erected downward and is fastened to the female screw portion 38 provided on the upper surface of the manhole cover 30 when the manhole cover 30 is opened and closed. The female screw portion 38 may be a screw hole that is installed through a nut or a manhole cover provided on the upper surface of the manhole cover 30. [

In this embodiment, the connection portion 122 may include a boss 124, a bolt 126, and a handle 128. The boss 124 may be installed on the bottom surface of the first horizontal arm 120. The bolt 126 may include a thread which is installed at one end to freely rotate on the boss 124 and is fastened to the female thread 28 formed on the manhole cover 30 at the lower end. The handle 128 is formed to protrude from one side of the bolt 126. When the operator holds the knob 128 and turns the bolt 126 in the fastening direction, the thread of the bolt 126 is fastened to the female screw portion 38.

Although it is shown in this embodiment that the connecting portion 122 is coupled with the manhole cover 30 in a screw-tight manner, it will be appreciated that other connecting ways sufficient to engage with the manhole cover 30 may be applied. For example, the connection portion 122 may be connected to the manhole cover 30 in a detachable manner such as a ring, a magnet, a locking pin, or other coupling methods known in the art.

The lifting member 300 includes a wire 310 and a wire operating portion 320. The wire 310 connects the first leg 130 of the first support member 100 and the second leg 230 of the second support member 200. The wire actuation portion 320 may be a means for pulling or releasing the wire 310 so that the first leg portion 130 and the second leg portion 230 are opened or erected outward of the manhole cover 30 have. In one example, the wire actuation portion 320 may be a hydraulic device. The wire operation portion 320 may be disposed between the first support member and the second support member and connected to the wire.

When the wire operation part 320 pulls the wire 310, the first and second leg parts 130 and 230 are vertically erected. When the wire 310 is loosened, the first and second support members 100 and 200 are rotated, The first and second leg portions 130 and 230 are naturally opened to the outside of the manhole cover 30 by their own weight.

The manhole cover opening / closing process using the manhole cover opening / closing apparatus having the above-described configuration will be described as follows.

3 and 4, the manhole cover opening / closing device 10 is positioned above the manhole cover 30 to be opened and closed, and the first and second supporting members 100 and 200 are installed in the manhole cover 30 30 are placed in a symmetrical manner on both sides. At this time, when the wire 310 is loosened by the wire operation part 320, the first and second legs 130 and 230 are naturally opened to the outside of the manhole cover 30 so that the bolts of the connecting parts 122 and 222 are fastened to the upper part of the female threaded part 38 . Thereafter, when the operator holds the knobs 128 and 228 and turns the bolts 126 and 226 in the fastening direction, the threads of the bolts 126 and 226 are fastened to the female threaded portion 38. The first and second leg portions 130 and 230 are vertically erected when the wire operation portion 320 is pulled by the wire 310 in a state where the manhole cover 30 is coupled to the connection portions 122 and 222, 110 and 210 are increased. Accordingly, the operator can lift the manhole cover 30 up to the open / close position without any trouble, and move the manhole cover opening / closing device 10 to a position where it is not disturbed by the work.

5 and 6 are views showing a manhole cover opening / closing apparatus according to another embodiment of the present invention.

The manhole cover opening / closing apparatus 10a shown in FIGS. 5 and 6 is a device suitable for opening and closing a manhole cover 30 of a coaming type. The manhole cover opening / closing apparatus 10a is installed on both sides of the manhole cover 30, respectively.

The manhole cover opening and closing apparatus 10a includes a main frame 110a, a horizontal arm 120a installed on the main frame 110a and a hydraulic device 330 installed perpendicularly to the main frame 110a. The horizontal arm 120a is provided with a butterfly bolt type connection part 122a which is fastened to the female screw part 38 provided on the manhole cover 30. [ At the lower end of the hydraulic device 330, a wheel 332 for mobility is provided.

The manhole cover opening and closing apparatus 10a having the above-described configuration drives the hydraulic device 330 while the connecting portion 122a is fastened to the female threaded portion 38 to lift the main frame 110, From the manhole (20).

7 is a view showing a modification of the first horizontal arm.

Referring to FIG. 7, the manhole cover opening / closing device 10b can be foldably coupled to the first main frame 110b so that the first horizontal arm 120b can be stored and transported. For example, one end of the first horizontal arm 120b may be hinged to the first main frame 110b. Therefore, the first horizontal arm 120b may be folded in the same direction as the first main frame 110b during storage and transportation, and may be unfolded during use. Although only the first supporting member 100b is shown and described in Fig. 7, the first horizontal arm of this folding structure can be equally applied to the horizontal arm of the second supporting member.

8 is a view showing a modification of the first main frame.

As shown in FIG. 8, the manhole cover opening / closing apparatus 10c may have a double pipe structure in which the length of the first main frame 110c in the first supporting member 100c can be varied. The first main frame 110c includes a center outer tube 110-1 and an inner tube 110-2 which is slidably inserted into the center outer tube 110-1 and is drawn out from the center outer tube 110-1. -1), respectively. Although only the first support member 100c is illustrated and described in FIG. 8, the first main frame of the double pipe structure may be similarly applied to the second main frame of the second support member.

9 is a view showing a modified example of the first supporting member.

9, in the manhole cover opening / closing device 10d, the first supporting member 100c can be provided so that the connecting portion 122 can be moved in the transverse direction so as to be used for the various manhole covers 30 . According to an example, the first horizontal arm 120d can be installed movably in the X direction on the first main frame 110d. To this end, the first main frame 110d may be provided with a slide 119 in the longitudinal direction. Also, the connection portion 122 may be installed on the first horizontal arm 120d so as to be movable in the Y-axis direction. To this end, a slide 129 may be provided in the longitudinal direction on the first horizontal arm 120d. Although only the first support member 100d is shown and described in Fig. 9, this structure can be equally applied to the second support member.

Accordingly, the manhole cover opening / closing device 10d of the present invention has a remarkable effect applicable to various manhole covers since the position of the connecting portion 122 can be varied even if the position of the female threaded portion of the manhole cover 30 to be opened or closed is different.

The description above is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in this specification are intended to illustrate rather than limit the technical idea of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas which are within the scope of the same should be interpreted as being included in the scope of the present invention.

10: Manhole cover opening / closing device 100: First support member
200: second supporting member 300: elevating member
110: first main frame 120: first horizontal arm
130: first leg

Claims (10)

A first support member and a second support member symmetrically disposed on both sides of the manhole cover to be engaged with the manhole cover; And
And a lifting member for lifting the first support member and the second support member. The method according to claim 1,
The first support member
A first main frame; A first horizontal arm provided on the first main frame and having a first connection portion coupled to the manhole cover; And a first leg portion hinged to the first main frame,
The second support member
A second main frame; A second horizontal arm provided on the second main frame and having a second connecting portion coupled to the manhole cover; And a second leg portion hinged to the second main frame. 3. The method of claim 2,
The first leg portion and the second leg portion
And the height of the first main frame and the height of the second main frame is raised by vertically standing by the elevating member. 3. The method of claim 2,
The elevating member
A wire connecting the first leg portion and the second leg portion; And
And a wire operating portion for pulling or releasing the wire so that the first leg portion and the second leg portion are opened or vertically extended to the outside of the manhole cover. 3. The method of claim 2,
Wherein each of the first connection portion and the second connection portion
A boss installed in the first horizontal arm and the second horizontal arm;
The upper end is freely rotatable on the boss, and the lower end is a bolt fastened to a screw hole formed in the manhole cover. And
And a handle for rotating the bolt. 3. The method of claim 2,
The first horizontal arm and the second horizontal arm
Wherein the first main frame and the second main frame are folded and folded on the first main frame and the second main frame. 3. The method of claim 2,
Wherein the length of the first main frame and the length of the second main frame are variable. 3. The method of claim 2,
The connecting portion
Wherein the horizontal arm is adjustable in a first direction which is a longitudinal direction of the horizontal arm. 9. The method of claim 8,
The horizontal arm
And a second direction perpendicular to the first direction on the main frame. 3. The method of claim 2,
Wherein at least one of the first connecting portion and the second connecting portion is detachably coupled to the manhole cover.

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