KR102080629B1 - Modem Mount Waterproof and Embed Form for Smart Manhole Cover - Google Patents

Abstract

The present invention relates to a waterproof and embedded structure of a modem installation unit of a smart manhole cover, which prevents a modem device installed at a lower portion of a smart manhole cover from being damaged by moisture or humidity. To this end, the smart manhole cover comprises: a manhole outer cover (10) in which an antenna module (50) is installed at the center of an outer surface, and a modem device (60) is installed on an inner surface; and a manhole inner cover (20) which is mounted on a manhole frame (30) at a lower portion of the manhole outer cover (10) in order to prevent the modem device (60) from being exposed. Here, the modem device comprises: a modem box (62) of a square box shape in which a modem (61) is accommodated; a cover plate (64) which seals an opening unit of a modem box (62) such that the modem (61) and the modem box (62) may not be dislocated from an accommodating groove (11), and is coupled to the manhole outer cover (10) at an edge of the accommodating groove (11); and a gasket (63) which is arranged between the modem box (62) and the cover plate (64) in order to seal the gap between the two elements. Therefore, in a state in which the modem box (62) of the modem device (60) is inserted into the accommodating groove (11) of a predetermined size formed at a lower portion of the manhole outer cover (10), the gasket (63) and the cover plate (64) are coupled to the manhole outer cover (10) to seal the modem box (62).

Description

Modem Mount Waterproof and Embed Form for Smart Manhole Cover}

The present invention relates to waterproofing and embedding structure of the modem manipulator cover of the smart manhole cover, and more particularly, waterproofing and installing the modem manipulator portion of the smart manhole cover to prevent the modem installed in the lower portion of the smart manhole cover from being damaged by moisture or moisture. It relates to a landfill structure.

In general, the manhole is a vertical hole formed to allow people to enter and exit the road surface for management of underground facilities, and a manhole cover is installed to prevent people or vehicles passing through the upper part of the manhole from falling out.

Most of the manhole management methods are performed by a worker who regularly visits the manhole, opens the manhole cover, goes down the inside of the manhole, and checks them directly. There is a danger.

Accordingly, a method of checking an internal state of a manhole using a sensor is used, but a manhole cover installed in the manhole is formed of cast iron or reinforced concrete to block electricity or electric wave, and thus to collect measurement results of the sensor. The problem remains that the operator must visit the manhole directly, open the manhole cover to unblock the radio and collect the sensor's measurement results. Therefore, there is a problem that the operator does not enter the inside of the manhole, so that the risk of personnel accidents is reduced but the maintenance cost is still high.

In addition, M2M / IoT-based sewer manhole monitoring system used in smart buildings has recently been developed to monitor the amount of water flowing through sewage pipes and their changes.However, this system uses wired communication networks to recover from installation and failure. Is difficult.

For this reason, recently, a method of wirelessly monitoring the state of a manhole has been studied, and one of them is a smart manhole. Smart manhole installs a sensor to detect the condition of the facility inside the manhole, and an antenna module that receives and sends a signal from the sensor to the manhole cover to manage the facility inside the manhole without the operator visiting the manhole. There is an advantage to reduce the maintenance cost.

In such a smart manhole, an antenna module is installed on the outside of the manhole cover, and a modem device is installed inside the manhole cover to relay communication between the sensor and the antenna module. A through hole is formed in the center.

However, the above-mentioned conventional smart manhole has a through hole formed in the manhole cover, and when rain or water is on the road, water is introduced into the gap between the antenna module and the manhole cover, which affects the modem device installed under the manhole cover. As a result, there is a problem that the modem device is damaged or malfunctions due to moisture. The present applicant has applied for a patent application No. 2019-0024638 (name of the invention: waterproof and buried structure of the antenna module of the smart manhole cover) as one solution to solve this problem.

As a result of examining the prior art related to the present invention, a number of patent documents have been searched and some of them are introduced as follows.

Patent document 1 is a housing having a sensor for monitoring environmental parameters around the manhole; A microcontroller is provided in the housing to transmit the parameters to the wireless module and send the parameters to the communication device to inform the user that the manhole has been tampered with, detecting environmental parameters in and around the enclosure and remotely Disclosed are a remote sensing system and method for wireless transmission.

Patent document 2 is a node coupled to the first antenna portion located on one surface of the manhole cover, the second antenna portion located on the other surface of the manhole cover, the manhole cover, and controls to transmit and receive data through the first antenna portion and the second antenna portion. And a node portion, wherein the node portion is configured to receive flow rate data from a flow meter supporting wireless communication through the first antenna portion and to transmit the flow rate data to the flow rate data collection device through the second antenna portion. It is starting.

Patent document 3 proposes a code system for NFC tags according to a method of linking a manhole information system and an underground facility management information system, designs a mechanism for attaching an NFC tag to a manhole cover, and has a mobile terminal having an NFC communication function. Has developed the NFC code recognition Smart Manhole App, and when the mobile terminal requests information about the communication facility to the management server through NFC tag recognition attached to the facility equipment of the manhole cover or pipeline, the management server It provides facility equipment information and maintenance history of manholes and pipelines, cables, enclosures, and pipelines of underground communication facilities.In order to establish telecommunication lines, a simulator for calculating the optimal route communication pipeline using communication manholes and communication management DB is used. LBS-based manhole location information is displayed on mobile terminals such as tablet PCs, and target facilities such as communication manholes and communication channels We have disclosed a smart manhole management system and method using USN that enables the establishment of systematic replacement plans for obsolete communication manholes and pipelines through water facility equipment history management.

Patent document 4 includes a space in which the antenna for transmitting the sensor information of the sensor device for sensing the state of the underground facilities in accordance with the LPWA network to the monitoring server at the top of the manhole cover, the bottom of the manhole cover, the sensor An LPWA network-based underground facility state, in which a buried communication device capable of collecting sensor information according to wired or wireless communication from the device can be arranged, and a hole at which the antenna and the communication device can be connected at the bottom of the space. A manhole cover for monitoring is disclosed.

Patent Document 1: KR10-2008-0033907 A Patent Document 2: KR10-2012-0092393 A Patent Document 3: KR10-2017-0056806 A Patent Document 4: KR10-1880472 B1

When the present invention is used in combination with, for example, Patent Application No. 2019-0024638 proposed by the applicant, the present invention more reliably blocks moisture intrusion into the modem installed in the smart manhole cover, thereby further preventing damage or malfunction of the modem. The purpose is to provide a waterproof and buried structure of the modem installation portion of the smart manhole cover that can be thoroughly prevented.

In addition, the present invention is another object to provide a waterproof structure and embedded structure of the modem installation portion of the smart manhole cover that can be protected from vibration or external shock by forming a modem box in which the modem is accommodated, the EDPM material.

Modem installation part waterproof and buried structure of the smart manhole cover of the present invention for achieving the above object, the antenna module is installed in the center of the outer side for relaying between the sensor device and the antenna module for monitoring the underground facilities on the inner side A smart manhole cover including a manhole cover on which a modem device is installed and a manhole cover seated on a manhole frame at the bottom of the manhole cover to prevent exposure of the modem device. The modem device has a lower portion to accommodate a modem therein. A box-shaped modem box that is open and closed at the top; A cover plate which seals the opening of the modem box so that the modem and the modem box are not separated from the accommodating groove and is coupled to the manhole cover at the edge of the accommodating groove; A gasket disposed between the modem box and the cover plate to seal a gap between the two, the gasket and the cover plate being inserted into a receiving groove of a predetermined size formed on the rear side of the manhole cover. Coupled to the lid is characterized in that configured to seal the modem box.

In addition, according to the waterproof and buried structure of the modem installation portion of the smart manhole cover of the present invention, the manhole cover is installed in a square shape at the bottom center to form a receiving groove into which the modem box is inserted, the manhole inner lid is inserted The edge of the insertion frame and the partition wall is characterized in that connected by a reinforcement plate.

In addition, according to the waterproofing and buried structure of the modem mounting portion of the smart manhole cover of the present invention, a jaw portion in which the cover plate is seated is formed inside the partition wall, and the jaw portion is fixed into a through hole formed in the cover plate and a through hole formed in the gasket. Characterized in that a plurality of bolt holes are formed that can be fastened to the bolt.

In addition, according to the waterproof and buried structure of the modem installation portion of the smart manhole cover of the present invention, the manhole cover is characterized in that it comprises an outer protrusion which is protruded along the edge is inserted into the insertion groove formed in the manhole frame.

In addition, according to the waterproof and buried structure of the modem installation portion of the smart manhole cover of the present invention, the modem box is formed of ethylene propylene (EDPM) material, the cover plate is characterized in that the polycarbonate (PC) material.

The waterproof and buried structure of the modem installation part of the smart manhole cover according to the present invention is inserted into a receiving groove formed in the rear side of the manhole cover by the modem box in which the modem is accommodated, and installed by the gasket and the cover plate of the modem box. As the opening is sealed, there is an effect to block moisture rising from the bottom of the manhole cover, thereby preventing the modem from being damaged or malfunctioned by moisture.

In addition, according to the waterproof and buried structure of the modem installation portion of the smart manhole cover of the present invention, a plurality of partitions are formed to protrude so that the receiving groove is formed in the lower portion of the manhole cover, the partition wall and the insertion frame of the outside is connected by a reinforcement plate Therefore, there is an effect of preventing the modem inside the modem box inserted into the receiving groove from being damaged by an impact from the outside.

In addition, according to the waterproofing and buried structure of the modem mounting portion of the smart manhole cover of the present invention, as the jaw portion in which the gasket and the cover plate are seated is formed inside the partition wall forming the receiving groove, the gasket and the cover plate are stably coupled. have.

In addition, according to the waterproof and buried structure of the modem installation portion of the smart manhole cover of the present invention, the modem box is formed of EDPM material to safely protect the internal modem from vibration or shock, and the cover plate is formed of excellent strength PC material This protects the modem inside the modem box from external shocks.

1 is an exploded perspective view showing a manhole cover of the smart manhole according to the present invention.
Figure 2 is an exploded perspective view showing the waterproof and buried structure of the modem installation portion of the smart manhole cover according to the present invention.
Figure 3 is an exploded cross-sectional view showing a modem installation waterproof and buried structure of the smart manhole cover according to the present invention.
Figure 4 is a cross-sectional configuration of the smart manhole cover according to the present invention.

Hereinafter, with reference to the accompanying drawings, it will be described with respect to the waterproof and embedded structure of the modem mounting portion of the smart manhole cover according to the present invention.

In the accompanying drawings, Figure 1 is an exploded perspective view showing a manhole cover of the smart manhole according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing the waterproofing and buried structure of the modem installation portion of the smart manhole cover, Figure 3 4 is a cross-sectional exploded view showing the waterproofing and buried structure of the modem installation part of the smart manhole cover, and FIG. 4 is a cross-sectional view of the smart manhole cover.

Smart manhole cover according to the present invention, as shown in Figure 1, is composed of a manhole cover 10 and the manhole cover 20 is coupled to the manhole frame 30. The manhole cover 10 is seated on the manhole frame 30, and the antenna module 50 is installed at the center of the outer side, and relays between the sensor device and the antenna module 50 for monitoring the underground facilities on the inner side. A modem device 60 for disposing is arranged. In addition, the manhole cover 20 is positioned below the manhole cover 10 to prevent exposure of the modem device 60 disposed on the inner side (the back side of the cover) of the manhole cover 10. It is configured to be seated at (30). At this time, by installing a permanent magnet 25 in the center of the manhole cover 20, it is possible to determine whether the manhole cover 10 is separated.

Modem mounting portion waterproof and buried structure of the smart manhole cover according to an embodiment of the present invention, as shown in Figure 2 to 4, the modem device 60 is inserted into the central portion of the back of the manhole cover 10 is installed The accommodation groove 11 is provided so that the modem device 60 is installed to be embedded in the interference fit form. To this end, for example, the receiving groove 11 may be formed in a shape that decreases in area toward the inlet of the groove.

In this case, the modem device 60 may accommodate the modem 61 and the modem box 62 having a through portion 62 ′ formed on an upper surface of the modem device 60 that is blocked for the connection between the antenna module 50 and the modem 61. Wow; The opening (entrance side) of the modem box 62 is sealed to prevent the modem 61 and the modem box 62 from being separated from the accommodation groove 11, and the manhole cover 10 is formed at the edge of the accommodation groove 11. A cover plate 64 to be coupled; And a gasket 63 disposed between the modem box 62 and the cover plate 64 to close the gap therebetween.

In addition, the gasket 63 and the cover plate 64 are inserted in a state where the modem box 62 of the modem device 60 is inserted into the receiving groove 11 of a predetermined size provided on the manhole cover 10 side. ) Is coupled to the manhole cover 10 side and is configured to seal the modem box 62.

As a result, the opening of the modem box 62 is sealed by the gasket 63, and the moisture flows up from the lower part of the manhole cover 10 and flows into the gap between the antenna module 50 and the manhole cover 10. The water is no longer introduced into the modem box 62, the modem 61 accommodated in the modem box 62 is not damaged by moisture or moisture.

On the other hand, the antenna module 50 has a disk-shaped antenna 51, a lower cover 52 for seating the antenna 51 on the upper surface and the lower portion of the antenna 51 is not exposed, and the antenna 51 at the lower side ) Is accommodated so that the upper portion of the antenna 51 is not exposed and includes an upper cover 53 coupled to the lower cover 52, and the antenna 51 has a through hole and a manhole cover formed in the lower cover 52. It is connected to the modem device 60 by wire through a through hole formed in the center portion of the antenna mounting groove 18 on the (10) side.
In addition, the upper cover 53 according to the embodiment, the radial contact portion (53b) in close contact with the inner wall of the antenna mounting groove 18 formed in the center of the outer surface of the manhole cover 10, the antenna mounting groove A circumferential upper cover protrusion 53c which is fitted into the circumferential upper cover protrusion groove 18b formed on the mounting surface of the antenna module 50 and protrudes downward to be in close contact with the outer surface of the lower cover 52. ) Is configured to include.

The manhole cover 10 is provided with a partition 12 in the center of the rear side, for example, in a square shape to form a receiving groove 11 into which the modem box 62 is inserted, and the manhole cover 20 is inserted therein. It is preferable that the edges of the insertion frame 15 and the partition 12 are connected to the reinforcing plate 14. At this time, the receiving groove 11 formed by the partition wall 12 is formed in a form that the area decreases toward the opening (inlet) side, it is preferable that the modem box 62 is inserted in the interference fit form. Accordingly, the partition wall 12 forming the receiving groove 11 is reinforced by the reinforcing plate 14 so as not to be deformed, thereby protecting the modem box 62 inserted into the receiving groove 11 safely. .

In addition, it is preferable that the jaw portion 13 on which the cover plate 64 is seated is formed inside the partition 12, and the jaw portion 13 has a through hole 64 ′ formed in the cover plate 64 and a gasket 63. It is preferable that a plurality of bolt holes 13 'to which the fixing bolts 65 inserted into the through holes formed in the above are fastened. As a result, the gasket 63 and the cover plate 64 are seated and brought into close contact with the jaw portion 13 of the partition 12, thereby completely closing the opening of the modem box 62, whereby the modem box 62 Moisture or water cannot penetrate inside.

On the other hand, the manhole cover 10 includes an outer protrusion 16 protruding along an edge and inserted into an insertion groove formed in the manhole frame 30, and is formed concave inwardly from the edge to form the manhole cover 10. It has a pair of impression grooves 17 formed symmetrically to be lifted.

The modem box 62 and the gasket 63 may be made of ethylene propylene (EDPM) material, and the cover plate 64 may be made of polycarbonate (PC) material.

Here, EDPM (Ethylene Propylene Diene Monomers) is a synthetic rubber formed by a double bond of ethylene and propylene, and is used in automobile parts, civil engineering, construction, industrial parts, etc., which require high durability and are not easily oxidized. As a result, the present invention is applied to the modem box 62 of the present invention, thereby protecting the modem 61 from external shock.

In addition, PC (Poloycarbonate) is a kind of thermoplastic plastic, which has excellent impact resistance, heat resistance, weather resistance, flexibility, and processability, and has about 150 times impact resistance compared to tempered glass, and is a substitute of acrylic and general which is easily broken and deformed. It is used as a complement of the plate glass, and is applied to the cover plate 64 of the present invention to protect the modem 61 accommodated in the modem box 62.

As mentioned above, although the embodiment which concerns on this invention was demonstrated and shown, this invention is not limited to the structure and operation as it described above, and it does not deviate from the range of the technical idea described in the claim with respect to this invention Many skilled in the art will appreciate that many variations and modifications are possible. Accordingly, all such suitable changes, modifications, and equivalents should be considered to be within the scope of the present invention.

10 ... manhole cover
11.Receiving groove
12.Bulk
13 ... chin
13 '... bolt ball
14 ... Reinforcement Plate
15.Inset frame
16.Outside protrusion
17 ... Impression Home
18. Antenna mounting groove
18b ... Upper groove
20 ... manhole cover
25.Permanent magnet
30 ... Manhole Frame
50.antenna module
51 Antenna
52 ... lower cover
53.Upper cover
53 b ...
53c ... Upper cover protrusion
60 ... Modem device
61 ... Modem
62 ... Modem Box
62 '... through
63 ... Gasket
64.cover plate
64 '... through-through
65 ... fixed bolt

Claims (4)

An antenna module 50 is installed at the center of the outer side and a manhole cover 10 provided with a sensor device for monitoring underground facilities on the inner side and a modem device 60 for relaying between the antenna module 50 and a modem. In the smart manhole cover comprising a manhole cover 20 seated in the manhole frame 30 at the bottom of the manhole cover 10 to prevent exposure of the device 60,
The antenna module 50,
A disk-shaped antenna 51;
A lower cover 52 on which an antenna 51 is seated on an upper surface and which the lower part of the antenna 51 is not exposed;
An antenna 51 is accommodated at the lower side to prevent the upper portion of the antenna 51 from being exposed, and includes an upper cover 53 coupled to the lower cover 52.
The antenna 51 is wired to the modem device 60 through the through hole formed in the lower cover 52 and the through hole formed in the center portion of the antenna mounting groove 18 on the manhole cover 10 side.
The upper cover 53 is a radial contact portion 53b in close contact with the inner wall of the antenna mounting groove 18 formed at the center of the outer surface of the manhole cover 10, and the antenna module of the antenna mounting groove 18. (50) includes a circumferential upper cover protrusion 53c which is fitted into the circumferential upper cover protrusion groove 18b formed on the mounting surface and protrudes downward to be in close contact with the outer surface of the lower cover 52,
The modem device 60,
A modem box 62 in which the modem 61 is accommodated;
A cover plate which seals the opening of the modem box 62 to prevent the modem 61 and the modem box 62 from being separated from the accommodation groove 11, and is coupled to the manhole cover 10 at the edge of the accommodation groove 11. 64;
A gasket 63 disposed between the modem box 62 and the cover plate 64 to seal a gap between the two;
The gasket 63 and the cover plate 64 are in a state where the modem box 62 of the modem device 60 is inserted into the receiving groove 11 of a predetermined size formed in the lower portion of the manhole cover 10 in a press fit manner. The waterproof and embedded structure of the modem installation portion of the smart manhole cover, characterized in that configured to seal the modem box 62 is coupled to the manhole cover (10). The method according to claim 1,
The manhole cover 10 is provided with a partition 12 having a square shape at a lower center thereof to form a receiving groove 11 into which the modem box 62 is inserted.
The mandrel inner cover 20 is inserted into the insert frame 15 and the edge of the partition wall 12 is connected to the reinforcement plate 14, characterized in that the modem installation portion waterproof and buried structure of the smart manhole cover. The method according to claim 1,
The jaw portion 13 on which the cover plate 64 is seated is formed inside the partition 12,
The jaw portion 13 has a plurality of bolt holes 13 'formed with fastening holes 64' formed in the cover plate 64 and fixing bolts 65 inserted into the through holes formed in the gasket 63. Waterproof and buried structure of the modem installation portion of the smart manhole cover. The method according to claim 1,
The manhole cover 10 includes an outer protrusion 16 that protrudes along an edge and is inserted into an insertion groove formed in the manhole frame 30.
Modem box 62 is formed of ethylene propylene (EDPM) material,
The cover plate 64 is waterproof and embedded structure of the modem installation portion of the smart manhole cover, characterized in that formed of polycarbonate (PC) material.

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