KR102219411B1 - Manhole cover with inner cover - Google Patents

Abstract

The present invention relates to a manhole cover with an inner cover and, more specifically, to a manhole cover with an inner cover which can prevent corrosion by mixing a material for preventing corrosion to manufacture an inner cover used for a manhole when manufacturing the inner cover, quickly recognize safety information for the maintenance and repair of the manhole and accident prevention by writing the safety information with numbers and logos to quickly recognize information at the moment of opening the manhole cover and allow quick maintenance and repair based on the recognized information, and fasten or mount the inner cover on the inner circumference of a manhole housing in a structure where the inner cover is hung by a plurality of round bars to prevent a fall and easily attach and detach the inner cover. The manhole cover with an inner cover comprises an openable inner cover (40) separated from a manhole cover (30) to be horizontally installed on the inner circumference of a manhole housing (20) allowing the manhole cover (30) to be provided on an upper portion thereof to be opened and closed.

Description

Manhole cover with inner cover}

The present invention manufactures an inner lid that is not corroded by general gas, and various safety information for maintenance management and prevention of safety accidents is indicated, and an inner lid is provided to prevent the rapid maintenance of manholes and human injury. It is about the manhole cover.

The inner cover (inner cover) of the existing manhole cover is located directly under the manhole cover when the manhole opening cover is opened, and the inner cover of the sewage manhole cover has not been used at all.

In general, electric manholes of KEPCO and communication manholes of KT have been used limitedly to prevent fall, so that only rolled steel sheets can be manufactured.

However, the location of the inner lid was in the shape of putting the lid on the pot. In addition, due to the nature of the location where the manhole cover is used, it was not possible to prevent the corrosion of the inner cover made of steel due to various methane gases generated from the manhole box and pipeline.

In particular, the situation may be more serious in the sewage manhole where hydrogen sulfide gas and various gases are generated. Moreover, because of the absolute shortage of on-site manpower, communication is not well communicated in places where foreign workers are hired, so suffocation and fall accidents often occur within the sewage manhole box, resulting in a social problem.

Republic of Korea Patent Publication No. 10-1606817 (registered on March 22, 2016)

The present invention was conceived to solve the above problems, and an object of the present invention is to mark various information on the upper surface of the inner lid in the manhole, so that the manhole maintenance and repair can be quickly processed, and the inner lid is manufactured It has a structure that prevents personal injury through harmful gas in the manhole in advance by being manufactured to prevent corrosion while maintaining airtightness in the manhole, and the inner cover is securely fastened and mounted on the manhole housing. It is to provide a manhole cover with an inner cover so that fastening is easy and fall prevention is also possible.

Other objects and advantages of the present invention will be described below, and will be understood by examples of the present invention. Further, the objects and advantages of the present invention can be realized by means and combinations shown in the claims.

The present invention is a means for solving the above problems,

On the inner periphery of the manhole housing 20 with the manhole cover 30 open and closed at the top, an openable inner lid 40 that is horizontally installed and spaced apart from the manhole cover 30 is provided,

The inner lid 40 is manufactured by coating a corrosion-preventing material on the outer periphery or mixing a corrosion-preventing material with a steel plate material for manufacturing the inner lid 40 at a preset ratio, and thus the inside of the manhole 10 or the pipe Prevents corrosion caused by poisonous gas coming up from the top,

On the upper surface of the inner lid 40, the safety information 44 for maintaining the management of the manhole 10 and preventing safety accidents is marked with numbers and logos to enable quick recognition, so that rapid maintenance and personal injury are not caused. It is characterized by not being able to.

As described above, in the present invention, safety information for management maintenance and prevention of safety accidents is displayed on the upper surface of the inner lid, so that rapid manhole maintenance and repair processing is possible, and no personal accidents due to harmful gases and falls occur. It works.

In addition, according to the present invention, since the inner cover is made of a material capable of preventing corrosion, there is an effect that maintenance costs are reduced because the inner cover is not deteriorated due to harmful gases.

In addition, according to the present invention, since the inner lid corresponds to the concave groove of the inner circumference of the manhole housing and has a structure in which it is fastened or fixed, there is an effect that there is no risk of a fall of an operator.

1 is a view of an embodiment showing the inner lid according to the present invention.
Figure 2 is a view of another embodiment showing the inner lid according to the present invention.
Figure 3 is a view of an embodiment showing the installation state of the inner lid according to the present invention.
Figure 4 is a view of an embodiment showing the installation state of the gas monitoring sensor according to the present invention.

Before describing various embodiments of the present invention in detail, it will be appreciated that the application is not limited to the details of configurations and arrangements of elements described in the following detailed description or illustrated in the drawings. The present invention can be implemented and practiced in different embodiments, and can be carried out in various ways. Also, the device or element orientation (eg "front", "back", "up", "down", "top", "bottom" The expressions and predicates used herein with respect to terms such as ", "left", "right", "lateral"), etc. are used only to simplify the description of the present invention, and related devices Or you may find that the element simply indicates or does not mean that it should have a specific orientation. Further, terms such as “first” and “second” are used in this application and the appended claims for purposes of explanation and are not intended to represent or imply any relative importance or spirit.

The present invention has the following features to achieve the above object.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventors appropriately explain the concept of terms in order to explain their own invention in the best way. Based on the principle that it can be defined, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention.

Accordingly, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all the technical spirit of the present invention, and thus various alternatives that can be substituted for them at the time of application It should be understood that there may be equivalents and variations.

Hereinafter, a manhole cover provided with an inner cover according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4.

The manhole cover provided with the inner cover according to the present invention is as follows.

The manhole cover 30 of the present invention is provided with an inner cover 40, on the inner periphery of the manhole housing 20 provided with a manhole cover 30 to be opened and closed at the top, spaced apart from the manhole cover 30 It is provided with an openable and closed inner lid 40 that is installed horizontally.

This inner lid 40 to prevent corrosion,

The inner lid 40 is manufactured by coating a corrosion-preventing material on the outer periphery or mixing a corrosion-preventing material with a steel plate material for manufacturing the inner lid 40 at a preset ratio, and thus the inside of the manhole 10 or the pipe Prevent corrosion caused by poisonous gas coming up on the bed.

Corrosion-preventing materials for this are any one of calcium vinyl chloride, PE (polyethylene, poly-ethylene), PP (polypropylene, poly-propylene), PC (polycarbonate, polycarbonate), rubber material, or a mixture of two or more Material can be used.

Of course, in the above, it was described that the inner lid 40 is manufactured by mixing the above corrosion-preventing material with the steel plate material, but this is that the inner lid 40 can be manufactured only with a rubber material (ex: MBR rubber material). . According to the user's embodiment, it is natural that the selection of such a material can be changed to various materials if it is possible to prevent corrosion caused by harmful gases.

The installation form of the inner lid is as follows,

The first installation type in which the outer periphery of the inner lid 40 is seated and installed on the inner periphery installation jaw 21 of the manhole housing 20, or the first in which both ends horizontally protrude to the outer periphery when the inner lid 40 is manufactured, Two round bars (51, 52) are protruded together by insert injection or extrusion, so that both ends of the first and second round bars (51, 52) are formed in the inner periphery of the manhole housing (20) a plurality of concave grooves (22) It is possible to be fastened or mounted detachably to the manhole housing 20 in one of the second installation forms that are fixed and installed while correspondingly fastened (or mounted) to some of them.

That is, the first and second round bars 51 and 52 are formed on both wing portions of the inner lid 40 in preparation for a fall, and are formed by insert injection or extrusion to serve as a pillar (beam).

In addition, the inner cover 40 is marked with numbers and logos for the safety information 44 for maintaining the management of the manhole 10 and preventing safety accidents on the upper surface, thereby enabling rapid maintenance and personal injury. Does not occur.

In more detail, it has been inconvenient for employees of the sewage pipe management office to carry various documents when dispatching to the site for maintenance of the sewage manhole box. On the other hand, simple information such as information on the inflow and outflow water pipe diameter and the flow direction of the sewage pipe within the pipe, along with various warning signs on the top of the inner lid 40, can improve work efficiency. In addition, if the management number of the manhole cover (30) box and the information of the manhole cover (30) box are attached and marked with a barcode or QR code on the inner cover (40) of the manhole cover (30), the management office staff can The case can be handled, and the safety of the transmission device, which is currently not implemented due to the corrosive relationship caused by various gases in the manhole box, can be ensured, so the business of the network of the central management system for sewage pipes can be accelerated.

The safety information 44 for this is composed of a warning mark 41, a pipe information mark 42, and a manhole information mark 43 for safety as follows.

The warning mark 41 is a warning displayed when there is a risk of suffocation or a risk of falling.

The piping information notation 42 is piping information indicating the pipe diameters (pipe diameters) of the inlet pipe and the outlet pipe inside the manhole 10 and the flow direction of sewage.

The manhole information mark 43 is a mark in which the management number and product information of the manhole cover 30 are displayed.

Of course, the safety information 44 is that all three pieces of information may be displayed or selectively displayed, depending on the manhole 10 and the installation location, the surrounding environment, etc. in which the inner lid 40 is installed.

In addition, three methods of displaying the safety information 44 on the upper surface of the inner lid 40 are suggested.

At the time of injection or extrusion production of the inner lid 40, a first display form in which the safety information 44 is displayed in an intaglio or embossed form, and a second display form in which the safety information 44 is displayed by screen or marking printing. , Safety information 44 is a third display type that is attached and displayed with a special sticker engraved with a bar code, and it is displayed and used in any of these first, second, and third display types, or two or more display types can be used together. Yes.

In addition, the inner lid 40 is toxic in the first color on the upper surface of the inner lid 40 to determine the presence or absence of toxic gas between the manhole lid 30 and the inner lid 40 spaced apart space (A). When gas is detected, the gas detection sensor 60 that changes to a preset second color (ex: red, etc.) different from the first color (ex: white) is attached and installed with a sticker or device, so that the operator can use the manhole cover ( 30) The moment of opening, the color of the gas detection sticker is checked, and the gas inside the manhole 10 is checked whether the gas has come out from the inner lid 40 to the separation space (A). Make it possible to prevent safety accidents.

In addition, various electronic devices such as a transmission device for network transmission with a management server, that is, transmission/reception of various information of a manhole, etc., may be installed on the upper surface of the inner lid 40 according to various embodiments of the user. And, in order to accommodate such an electronic device, the upper surface of the inner lid 40 is made of a rubber material having good adhesion and good interception of gas and moisture in preparation for various gases to be generated to ensure corrosion of the transmission device. It is possible to avoid silicone rubber materials with poor adhesion of various safety sign stickers to be attached to 40), and to form a storage space made of MBR rubber material that is resistant to oil and can increase hardness.

As described above, although the present invention has been described by the limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the following by those of ordinary skill in the technical field to which the present invention belongs. It goes without saying that various modifications and changes are possible within the equivalent range of the claims to be described.

10: manhole 20: housing
21: mounting jaw 22: concave groove
30: manhole cover 40: inner cover
41: warning mark 42: piping information mark
43: manhole information notation 44: safety information
51: 1st round bar 52: 2nd round bar
60: gas detection sensor

Claims (7)

On the inner periphery of the manhole housing 20 with the manhole cover 30 open and closed at the top, an openable inner lid 40 that is horizontally installed and spaced apart from the manhole cover 30 is provided,
The inner lid 40 is manufactured by coating a corrosion-preventing material on the outer periphery or mixing a corrosion-preventing material with a steel plate material for manufacturing the inner lid 40 at a preset ratio, and thus the inside of the manhole 10 or the pipe Prevents corrosion caused by poisonous gas coming up from the top,
On the upper surface of the inner lid 40, the safety information 44 for maintaining the management of the manhole 10 and preventing safety accidents is marked with numbers and logos to enable quick recognition, so that rapid maintenance and personal injury are not caused. And
The corrosion-preventing material is any one of calcium vinyl chloride, PE, PP, PC, rubber materials, or a mixed material in which two or more are mixed,
The safety information 44
A warning sign 41 displayed in case of suffocation and fall risk;
A pipe information marking 42 in which the pipe diameter of the manhole 10 and the inner inlet pipe and the outlet pipe and the flow direction of sewage are displayed;
Manhole information marking 43 on which the management number and product information of the manhole cover 30 are displayed; Consists of
The safety information 44
At the time of injection or extrusion production of the inner lid 40,
A first display form in which the safety information 44 is displayed in an engraved or embossed form;
A second display form in which the safety information 44 is displayed by screen or marking printing;
A third display form in which the safety information 44 is attached and displayed with a special sticker engraved with a barcode; Either one is displayed and used, or two or more display forms are used together,
The inner lid 40 is
When the inner lid 40 is manufactured, the first and second round bars 51 and 52, which are horizontally protruding toward the outer periphery, are protruded together by insert injection or extrusion, so that both ends of the first and second round bars 51 and 52 , A second installation type that is fixedly installed while correspondingly fastened or mounted to some of the plurality of concave grooves 22 formed in the inner periphery of the manhole housing 20, and is detachably fastened and mounted to the manhole housing 20,
The inner lid 40 is
In order to determine the presence or absence of toxic gas between the manhole cover 30 and the inner cover 40 spaced space (A), on the upper surface of the inner cover 40, a dictionary different from the first color when toxic gas is detected in the first color A gas detection sensor 60 that changes to a set second color is attached and installed in the form of a sticker or device,
On the upper surface of the inner lid 40
An electronic device for exchanging manhole information with the management server can be installed, and a storage space made of MBR rubber is formed on the upper surface of the inner lid to prevent corrosion of the electronic device. .
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