KR200475548Y1 - Apparatus for removing manhole cover - Google Patents

Abstract

The present invention relates to an apparatus for separating a manhole cover from a manhole, comprising: a frame bar across the diameter of the manhole and positioned at an upper surface of the cover, the plurality of openings being vertically penetrated; A support portion positioned on a lower surface of the frame bar and projecting downward to separate the frame bar from the ring of the manhole cover; And a lifter for lifting the manhole cover through an opening formed in the manhole cover while being supported by the frame bar by being inserted into the opening formed in the frame bar. Thus, various manhole covers can be easily separated by tightening the lifting nut Provides an effect.

Description

[0001] APPARATUS FOR REMOVING MANHOLE COVER [0002]

The present invention is a technical field of an apparatus for easily separating a cover of a manhole installed from a manhole.

A manhole cover that covers a manhole has a phenomenon in which foreign matter and moisture present on the road or the lead are adhered to the manhole by the inflow.

This sticking phenomenon makes the separation of the manhole cover considerably difficult. The work of separating the manholes is a common method in which an operator inserts a bar in the opening formed in the manhole cover and lifts the manhole by the force of the operator.

This method was entirely dependent on the skill of the operator, and there was a problem that the manhole cover was detached depending on the degree of fixation of the manhole cover, the weight of the manhole cover, or the skill of the operator.

In addition, there is a problem that such a manual operation may cause a safety accident such as a back injury of a worker.

In order to facilitate the detachment of the manhole cover, a manhole cover having an anti-theft function and an opening device for the manhole cover (Application No. 10-2009-0064406, hereinafter referred to as "prior art 1"), A manhole cover opening / closing device (Patent Application No. 1998-024288, hereinafter referred to as "Prior Art 2"), "" Manhole cover opening device for a hook type manhole cover (Application No. 10-1998-0032567, (Patent Application No. 10-1999-0043878, hereinafter referred to as "Prior Art 4") and a manhole cover opening / closing device (Application No. 10-1999-0015041, hereinafter referred to as "Prior Art 5").

The conventional art 1 has a problem that only the manhole when the truncated cone 21b is present is detachable and applied only to some kinds of manholes.

In the prior art 2, there is a problem that the manhole cover is detached through a very complicated structure, and the work efficiency is lowered due to an unnecessary structure and unnecessary weight of the apparatus.

The prior art 3 corresponds to a device which only helps a worker ' s skill, and there is also a problem that can cause back pain of a worker.

Conventional art 4 has a problem that it is difficult to apply a manhole cover in a case where it is difficult to raise a manhole cover of a heavy weight due to the force of a worker, .

The conventional art 5 has a main technical idea similar to that of the conventional art 2, but a structure such as the elevation guide frame 3 is unnecessary, which is complicated and unnecessary structure, resulting in a problem of lowering the work efficiency. There is also a problem that it can not be applied to a manhole cover having various sizes.

The manhole cover separating device according to the present invention is devised to solve the above-mentioned problems of the prior art, and has the following problems.

First, it is intended to provide a device which can easily separate the manhole cover with a simple structure and a simple principle.

Second, it is intended to provide a universal manhole cover separating device applicable to a manhole cover having various diameters.

The solution of the present invention is not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

The manhole cover separating apparatus according to the present invention has the following means for solving the above-mentioned problems to be solved.

A manhole cover separating apparatus according to the present invention is a device for separating a manhole cover from a manhole, comprising: a frame bar located across the diameter of the manhole cover at an upper portion of the manhole cover and having a plurality of openings penetrating vertically; ; A support member positioned on a lower surface of the frame bar and projecting downward from the ring of the manhole cover so as to separate the frame bar; And a lifter for lifting the manhole cover through an opening formed in the manhole cover while being inserted into an opening formed in the frame bar and being supported by the frame bar.

The manhole cover separating apparatus according to the present invention further includes a horizontal support portion which is located at a predetermined portion of the frame bar and projects downward to separate the frame bar from the ring of the manhole cover, And the frame bar is horizontally spaced from the manhole cover when the ring is contacted with the ring of the manhole cover.

The horizontal support portion of the manhole cover separating device according to the present invention may be configured such that the predetermined portion is arbitrarily adjustable and the distance between the horizontal support portion and the support portion can be adjusted.

The lifter of the manhole cover separating apparatus according to the present invention includes: a screw inserted to penetrate through the opening of the frame bar and the opening formed in the manhole cover; A latch disposed at a lower end of the screw and inserted into an opening formed in the manhole cover to hook the manhole cover; And a lifting nut coupled to the screw and having a body supported at an upper end of the frame bar. When the lifting nut is turned, the screw is upwardly lifted and the manhole cover caught by the latch is separated from the manhole .

The lifter of the manhole cover separating device according to the present invention is positioned between the lifting nut and the frame bar to support the lifting nut from the frame bar and to reduce the frictional force between the lifting nut and the frame bar And further includes a slider.

The bumper slider of the manhole cover separating apparatus according to the present invention may include a bearing inside to reduce frictional force between the lifting nut and the frame bar.

The lifter of the manhole cover separating device according to the present invention includes a rotation nut located at an upper end of the screw and adapted to adjust the direction of the latch so that the latch inserted into the opening formed in the manhole cover can hook the manhole cover And the like.

The manhole cover separating apparatus according to the present invention having the above-described structure has the following effects.

First, it provides the effect of separating the manhole cover by tightening the lifting nut.

Second, it provides an effect that can be applied to various manhole covers having various diameters.

Third, when the present invention is used, it provides an effect of preventing worker's work efficiency as well as safety accidents such as worker's back injury.

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

1 is a photograph of a manhole cover to which the present invention and the present invention will be applied.
2 is a front view and a side view of a manhole cover to which the present invention is applied.
3 is a perspective view showing a manhole cover separating apparatus according to a preferred embodiment of the present invention.
4 shows a top view, a side view and a bottom view of the device of Fig. 3;
5 is a front view, a plan view, and a bottom view of the lifter which is a constitution of the present invention.
6 is an explanatory view showing that the present invention is mounted on a manhole cover.

The manhole cover separating apparatus according to the present invention can be variously modified and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the description. It should be understood, however, that the appended claims are not intended to limit the invention to the particular embodiments, and that all changes, equivalents, and alternatives falling within the spirit and scope of the invention.

Hereinafter, the manhole cover separating apparatus according to the present invention will be described in detail with reference to the drawings.

1 is a photograph of a manhole cover to which the present invention and the present invention will be applied. 2 is a front view and a side view of a manhole cover to which the present invention is applied. 3 is a perspective view showing a manhole cover separating apparatus according to a preferred embodiment of the present invention. 4 shows a top view, a side view and a bottom view of the device of Fig. 3; 5 is a front view, a plan view, and a bottom view of the lifter which is a constitution of the present invention. 6 is an explanatory view showing that the present invention is mounted on a manhole cover.

According to the present invention, the manhole cover separating apparatus comprises a frame bar 110; A support 120; And a lifter 140.

1, the manhole cover separating apparatus 100 according to the present invention is located on the upper surface of the manhole cover 10 and is provided with a manhole cover 10 (see FIG. 2) ).

3, the frame bar 110 of the present invention is positioned at an upper portion of the manhole cover 10 so as to cross the diameter of the manhole cover 10. As shown in Fig.

3 and 4, a plurality of openings 111 are formed in the frame bar 110 so that a lifter 140 to be described later is inserted into the opening 111 of the frame bar 110.

The support portion 120 is located on the lower surface of the frame bar 110 and projects downward to separate the frame bar 110 from the ring 20 of the manhole cover.

The support 120 is preferably located at the end of the frame bar 110, as shown in FIG. When the supporting part 120 protrudes downward 121, the downward protruding part 121 touches the ring 20 of the manhole cover, and the frame bar 110 protrudes downward 121, (20). The support portion 120 may contact the ground to receive the support of the ground. In this case, however, the problem may occur that the manhole cover 10 is detached from the ground together with the manhole cover 20 fixed thereto Preferably, the bar and support 120 contact the ring 20 of the manhole cover.

The frame bar 110 is spaced apart from the ring 20 of the manhole cover by the portion of the downward protrusion 121 of the support 120. The manhole cover 10 is then lifted up to the spacing space and the downward protrusion 121 Is preferably longer than the thickness of the manhole cover 10.

1 and 3, the lifter 140 is inserted into the opening 111 of the frame bar 110 and is supported by the frame bar 110 so that the opening 11 formed in the manhole cover 10 The manhole cover 10 is lifted.

The frame bar 110 includes a horizontal support 130 positioned at a predetermined portion of the frame bar 110 so as to separate the frame bar 110 from the ring 20 of the manhole cover like the support 120. [ And a downward protrusion 131 is formed at a lower portion thereof.

The supporting portion 120 and the horizontal supporting portion 130 may be separated from each other when the horizontal supporting portion 130 is further included. By supporting the ring 20 of the manhole cover and supporting the frame bar 110 horizontally, the operator can more easily perform the manhole cover 10 separation operation.

4, it is preferable that the horizontal support part 130 is designed to be able to arbitrarily control a predetermined part, as shown in FIG. 4, and the horizontal support part 130 surrounds the frame bar 110 and moves the frame bar 110 . ≪ / RTI >

In this case, it is preferable that the horizontal support part 130 and the support part 120 are larger than the diameter of the manhole cover 10 to be separated. This is because the horizontal support portion 13 and the support portion 120 must support the frame bar 110 while directly contacting the ring 20 of the manhole cover.

The lifter 140 includes a screw 144 as shown in FIG. 5; A latch 141; And a lifting nut 143.

The screw 144 is vertically positioned and inserted into the opening 111 of the frame bar 110 and inserted through the opening 11 of the manhole cover 10 at the same time.

The latch 141 is located at the lower end of the screw 144 and may be configured in a longitudinal direction and in a unidirectional manner, or may be formed in a general ring shape (not shown).

In the case of the latch 141 shown in FIG. 5, the manhole cover 10 is inserted into the elliptical opening 11, and after the longitudinal direction of the latch 141 is caught in the groove of the elliptical opening 11 .

The latch 141 is rotated by turning the fixed rotation nut 145 by placing the rotation nut 145 fixed to the screw 144 on the upper side of the screw 144 so that the latch 141 can be rotated under the manhole cover opening 11 In order to catch the manhole cover 10 thereon.

The lifting nut 143 is fastened to the screw 144 so that the body is supported at the top of the frame bar 110, as shown in Fig.

When the lifting nut 143 is turned, the screw 144 is lifted upward and the manhole cover 10 caught by the latch 141 is separated from the manhole.

More preferably, the lifter 140 may further include a support slider 142.

The support slider 142 is positioned between the lifting nut 143 and the frame bar 110 and supports the lifting nut 143 while being supported by the frame bar 110.

When the lifting nut 143 lifts the loaded screw 144, friction is generated between the lower portion of the lifting nut 143 and the frame bar 110 to make it difficult to turn the lifting nut 143. However, Reduces these frictional forces, allowing the lifting nut 143 to rotate easily.

The bearing slider 142 may include a bearing 146 therein to reduce the frictional force between the lifting nut 143 and the frame bar 110.

As used herein, the singular " include "should be understood to include a plurality of representations unless the context clearly dictates otherwise, and the terms" comprises & , Parts or combinations thereof, and does not preclude the presence or addition of one or more other features, integers, steps, components, components, or combinations thereof.

The scope of the present invention is determined by the matters set forth in the claims, and the parentheses used in the claims are not used for optional limitation, but are used for a clear component, and the description in parentheses is also interpreted as an essential component .

10: Manhole cover
11: Manhole cover opening
20: Manhole cover ring
100: Manhole cover separating device
110: frame bar
111: Frame bar opening
120: Support
121:
130: Horizontal support
131: protrusion
140: lifter
141: Clasp
142: Support slider
143: Lifting nut
144: screw
145: Retaining nut
146: Bearings

Claims (7)

An apparatus for separating a manhole cover from a manhole,
A frame bar positioned across the diameter of the manhole cover at the upper portion of the manhole cover and having a plurality of openings penetrating vertically;
A support member positioned on a lower surface of the frame bar and projecting downward from the ring of the manhole cover so as to separate the frame bar; And
And a lifter for lifting the manhole cover through an opening formed in the manhole cover while being inserted into an opening formed in the frame bar and being supported by the frame bar,
The lifter
A screw inserted through the opening of the frame bar and the opening formed in the manhole cover;
A latch disposed at a lower end of the screw and inserted into an opening formed in the manhole cover to hook the manhole cover;
A lifting nut coupled to the screw and having a body supported at an upper end of the frame bar; And
And a bumper slider positioned between the lifting nut and the frame bar to support the lifting nut from the frame bar and reduce the frictional force between the lifting nut and the frame bar,
The bumper slider includes:
And a bearing within the frame bar to reduce frictional forces between the lifting nut and the frame bar,
Wherein when the lifting nut is turned, the screw is lifted upwards to separate the manhole cover caught by the latch from the manhole.
2. The manhole cover separating apparatus according to claim 1,
Further comprising a horizontal support portion located at a predetermined portion of the frame bar and projecting downwardly to separate the frame bar from the ring of the manhole cover,
Wherein the frame bar is horizontally spaced from the manhole cover when the support and the horizontal support are in contact with the ring of the manhole cover.
[3] The apparatus of claim 2,
Wherein the predetermined portion is arbitrarily adjustable so that a distance between the predetermined portion and the support portion can be adjusted.
delete delete delete The apparatus of claim 1, wherein the lifter comprises:
And a pivot nut positioned at an upper end of the screw to adjust a direction of the latch so that the latch inserted into the opening formed in the manhole cover hangs over the manhole cover.

Images