KR20060083777A - Manhole apparatus - Google Patents

Abstract

According to the present invention, the manhole device comprises a first manhole unit for forming an underground cavity;

A second manhole unit mounted in the first manhole unit and a circulation means for circulating external air and internal air by a difference in air density inside the closed space of the first manhole unit; Equipped.

Manhole unit. Connection duct, electronic equipment

Description

Manhole apparatus

1 is a partially cutaway perspective view of a manhole device according to the present invention;

2 is a cross-sectional view of the manhole device shown in FIG.

3 is a partially cutaway perspective view showing another embodiment of the manhole device according to the present invention;

Figure 4 is a cross-sectional view showing another embodiment of the manhole device according to the present invention.

FIG. 5 is a partially cutaway perspective view showing an extract of the filter unit shown in FIG. 1; FIG.

6 is a cross-sectional view of the filter means shown in FIG.

Figure 7 is an exploded perspective view showing an extract of the connector installed on the second body.

<Explanation of symbols for the main parts of the drawings>

10; Manhole device

20; First manhole unit

30; 2nd manhole unit

40; circulation means

100; electronic equipment

The present invention relates to a manhole device, and more particularly to a manhole device having an internal manhole unit sealed in the underground cavity.

In general, urban development of the population is accelerating due to the development of industry, and water supply, sewerage, communication lines, gas pipelines, and electric wires are buried underground due to the industrial infrastructure being reorganized around the city.

Such manhole units are various, such as manholes for electric lines, manholes for communication lines, sewage manholes, catchment manholes, and water supply manholes, depending on the characteristics or applications of the pipes.

On the other hand, the electric line or communication line requires a variety of auxiliary devices, that is, electronic equipment, such as a control device, a peripheral device for controlling this. Such accessory devices are relatively vulnerable to moisture or moisture. Therefore, even if the electric or telecommunication lines are buried underground or installed in underground common areas, electronic equipment for controlling them is generally installed on the ground. As such, the electronic equipment, which is a member installed on the ground, is mainly installed on the side of the road, and thus not only encroaches the sidewalk, but also looks bad.

In view of this, the manhole device is disclosed in Korean Utility Model Registration No. 0291458. The manhole device forms a manhole body made of metal material, and integrally forms a cover body having a manhole inlet to which a manhole cover is coupled to the upper side thereof, and the cover body upwards so that the force to withstand external stress is strong. It has a curved dome shape.

Although the manhole device has a structure in which the manhole body is sealed to the outside, condensation occurs on the inner surface of the manhole body due to the difference between the inside and outside of the manhole body, that is, the temperature of the ground and the inside of the manhole body. This condensation corrodes the equipment installed inside the manhole body, and the water condenses on the bottom of the manhole body due to continuous condensation, which accelerates the corrosion of electronic equipment.

Korean Utility Model Registration No. 0333748 discloses a structure for preventing water penetration of manholes, Utility Model Registration No. 064598 discloses a communication cable waterproof manhole, and Utility Model Registration No. 0214309 has an inner lid locking device of a manhole. Is disclosed.

The present invention is to solve the problems described above, the condensation phenomenon occurs on the inner wall surface of the main body by circulating with the air by using the density difference according to the temperature difference between the temperature of the air inside the main body of the inner manhole unit and the ground temperature It is an object of the present invention to provide a manhole device that can fundamentally prevent this.

Another object of the present invention is to provide a manhole device that can be installed on the ground and the electrical equipment of the electric line and communication line to harm the aesthetics, to fundamentally prevent the risk of safety accidents, and to protect the incidental equipment from moisture The purpose is.

The manhole device of the present invention to achieve the above object

A first manhole unit forming an underground cavity,

A second manhole unit having an enclosed space in which electronic equipment is installed and mounted to the first manhole unit;

It characterized in that it comprises a circulation means for circulating the outside air and the internal air by the difference in the specific gravity of the air in the sealed space of the first manhole unit.

In the present invention, the second manhole unit is installed in the underground cavity, the electronic equipment is built-in and the upper body is open, the second body is coupled to the second body to seal the space in which the electronic equipment is installed and the viewing window The provided sealing member and a sealing member or connector installed on the second body to surround the cable drawn out from the electronic equipment to the outside.

The circulation means may include a first connection duct installed at an upper side of the second body of the second manhole unit and extending from the ground to discharge the heated air in the closed space of the second manhole unit to the outside; And a second connection duct installed at a lower side of the manhole and extending from the ground to flow the ground air into the closed space of the second body due to the difference in density of the air.

An inside of the second body may further include a separate heating means for heating the air in the closed space, and at least one side of the first and second connection ducts may be provided with a blower for promoting the circulation of air. . In addition, an endothermic coating film is formed in the first connection duct so that the inside of the connection duct extending to the ground by solar heat is heated in order to discharge the air of the enclosed space to the outside. In addition, the second connection duct is further provided with a filter means for filtering foreign matter piggybacked in the air flowing from the outside.

Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Manhole device 10 according to the present invention is installed in the first manhole unit 20 and the electronic equipment or a precision mechanical device to form a cavity 21 in the basement as shown in Figure 1 and 2 and the underground cavity The second manhole unit 30 having the enclosed space 31 with respect to 21 and the air inside the enclosed space 31 of the second manhole unit 30 are circulated with the outside air by a specific gravity difference. The circulation means 40 is provided.

Hereinafter, the manhole device 10 will be described in more detail by component.

The first manhole unit 20 is formed in the ground to form an underground cavity 21 and is made of a concrete wall or synthetic resin material, etc., and has a first body 23 having an entrance 22 formed thereon, and the first The first manhole cover 24 is coupled to the main body 23 to open and close the doorway 22. Here, the entrance 22 is preferably formed to be relatively large so as not to interfere when the second manhole unit 30 is inserted. In addition, the first manhole unit 20 is further provided with a discharge means 25 for discharging the water flowing through the ground water or the entrance 22 to the inside as shown in FIG. The discharge means 25 is provided with a collecting portion 25a formed on one side of the first manhole unit 20 and a pump 25b for discharging water accumulated in the collecting portion 25a to the outside. The pump 25b is provided with a suction pipe 25c for sucking water from the collection pipe 25a at the suction port, and the discharge port of the pump is provided in the sewage pipe 26 and the discharge pipe 25d buried underground through the main body. Is connected by. When the groundwater in the ground is less likely to flow into the water collecting portion 25a, a separate discharge port (not shown) may be formed to discharge the water underground. The first manhole unit 20 can be any structure as long as it is not limited to the above-described embodiment and can form the underground cavity 21.

The second manhole unit 30 is inserted into and installed in the underground cavity portion 21 of the first manhole unit 20. The electronic device 100 or the precision device is installed therein and has a second open top. A second manhole cover having a main body 32 and a second window 32 coupled to the second body 32 to form a closed space portion 31 with respect to the underground cavity portion 21 and having a viewing window 33 through which the inside can be observed. 34). The second body 32 may be made of concrete, synthetic resin, or metal. An insulating layer (not shown) may be further provided on an inner surface or an outer circumferential surface of the second manhole unit 30. The second body 32 may further include a separate fastening means (not shown) capable of fastening the second manhole cover 34 to the second body 32. The fastening means may be made of a screw member for coupling the second body and the manhole cover, but is not limited thereto and may be made of a clip or a clamp. On the other hand, the second manhole cover formed with the see-through window 33 may be further formed a separate entrance (34a) for a person to enter and exit. This entrance can be any shape as long as it can be made to go in and out without opening the second manhole cover 34, and it is preferable to configure the structure to maintain the airtightness with the inside.

The shape and size of the second manhole unit 30 may be variously manufactured according to the inner circumferential surface of the first manhole unit 20 and the electronic equipment to be mounted on the second manhole unit.

The circulation means 40 ventilates the air in the enclosed space 31 of the second manhole unit 30 by using a density difference according to temperature to prevent condensation in the second manhole unit 30. The first and second vents 41 and 42 may be formed at upper and lower portions of the second body 32, respectively, and the first vents 41 may be heated by the electronic equipment 100 or the like to be relatively heated. Is connected to the first connection duct 43 for discharging the air having a low density to the outside, and the second vent 42 is a second connection for introducing the external air having a relatively low temperature and high density to the inside. Is connected to the duct 44. First and second connection ducts 43 and 44 connected to the first and second vent holes 41 and 42 respectively extend through the first body 23 of the first manhole unit 20 and extend outwardly. The first connection duct 43 is formed relatively higher than the second connection duct 44. An endothermic coating film 80 may be further provided on an outer circumferential surface of the first connection duct 43 to heat the first connection duct 43 by the solar heat so as to smoothly discharge the air therein. The endothermic coating film 80 is preferably coated with a black-based paint so as to absorb the heat energy by sunlight. Here, the first vent 41 is preferably formed in a hopper shape so that air can be discharged smoothly, and the inner circumferential surface of the second manhole cover 34 receives heated air from the first vent 41. It is preferable to form inclined at a predetermined angle to guide to the side.

Meanwhile, as shown in FIGS. 3 and 4, at least one blower means 50 may be installed at at least one side of the first and second vents 41 and 42 to blow the inside air or to introduce outside air. When no heat is generated from an electronic device or a precision device installed in the sealed space 31 of the second manhole unit 30, a heating heater 60 for heating air in the sealed space 31. Can be installed). The blowing means 50 may be composed of a blowing fan 51 driven by a motor on the inlet side corresponding to the first vent (41). Here, the sealed space portion 31 of the second manhole unit 30 is selectively selected by a humidity sensor 71 for sensing humidity in the space portion 31 and humidity detected by the humidity sensor 71. As a result, a control unit 70 for driving the heating heater 60 and the blowing fan 51 may be further provided. The control unit 70 may further include a timer 72 capable of periodically operating the blower fan 61 and the heating heater 60.

In the above embodiments, the second connection duct 44 may be further provided with a filter means 110 for filtering the foreign matter carried on the air introduced into the first menhole unit from the outside. The filter means 110 is installed to be exposed to the outside of the second connection duct 44 as shown in Figures 1 and 5, 6, has a flange portion 111 and staggered on the inner wall And a filter case 114 having upper and lower partitions 112 and 113 formed with filter supports 112a and 113a, and a filter 115 installed perpendicular to the filter supports 112a and 113a. . In addition, the filter case 114 has an insertion hole 116a for replacing the filter 115, and the insertion hole 116a is sealed by a cover 116 coupled to the filter case 114 by a screw. The filter means 110 is not limited to the above-described embodiment and may be any structure as long as the filter means 110 can filter the air flowing into the second manhole unit 30 through the second connection duct 44.

The second body 32 is further provided with a sealing member or connector 120 surrounding the cable 300 drawn out from the electronic device 100 to the outside. As shown in FIG. 7, the connector 120 penetrates through the second body 32 and has a latching jaw 121 formed at one side thereof, and has extension portions 122 and 123 extending to both sides thereof. Fasteners for screwing the connector body 124 through) and the extension part 122 on the side corresponding to the locking step 121 to fix the connector body 124 to the second body 32. And a fastening member 126 for screwing the cable 300 penetrated and screwed into the extension part 123 on the other side using the collet part 123a formed in the extension part 123. Reference numerals 127 and 128 denote packings.

 On the other hand, the side adjacent to the first connection duct 43 is connected to the electronic device 100 and the cable inside so that the electronic device 100 installed in the first manhole unit 20 can be inspected from the outside. The detection panel 90 may be further provided. The detection panel 90 may further include a connector for electrical connection with internal electronic equipment.

Referring to the operation of the manhole device according to the present invention configured as described above are as follows.

As shown in FIGS. 1 and 2, the manhole device 10 according to the present invention includes a precision electronic device 100 or a precision machine in the underground cavity 21 of the first manhole unit 20 installed underground. By operating the electronic device 100 in a state where the mounted second manhole unit 30 is installed, the temperature in the sealed space 31 is heated by the heat generated from the electronic device 100, thereby raising the temperature. Done. Therefore, the air, which has become relatively low in density due to the rise in temperature, rises and is discharged to the outside through the first vent 41 and the first connection duct 43, and the pressure in the sealed space 31 is increased due to the discharge of the air. Since it is relatively low, outside air flows into the sealed space 31 through the second connection duct 44. Since the air in the enclosed space can be continuously circulated by the repetition of this action, the temperature difference between the underground cavity 21 of the first manhole unit 20 and the temperature of the enclosed space of the second manhole unit 30 is reduced. Condensation may be prevented from occurring on the inner surface of the second body 32. In particular, since an endothermic coating film 80 for heating the first connection duct 43 by solar heat is formed on the outer surface of the first connection duct 43, the inside of the first connection duct 43 is opened by the solar heat during the day. By heating, the air in the first connection duct 43 is raised to increase the air circulation efficiency in the sealed space 31.

 Since the heating heater 60 is installed inside the second manhole unit 30 and a blowing fan 51 for forced air is installed at the inlet side of the first connection duct 43, the air circulation therein is increased. If it is not enough, the humidity can be forced to circulate if the humidity increases. That is, when the humidity inside the sealed space 31 is relatively high by the humidity sensor 71, the blowing fan 51 and the heating heater 60 are driven by the controller to force the air of the sealed space actor. By circulating, it is possible to suppress the occurrence of condensation on the inner surface of the second body 32. Since the filter 110 is installed in the second connection duct 44 during the forced circulation as described above, it is possible to prevent the inflow of foreign substances piggybacked in the air flowing from the outside.

On the other hand, since the first manhole unit 20 is provided with a discharge means 25 for capturing water due to groundwater or condensation introduced into the inside and discharged to the outside, the second manhole unit is locked by water flowing from the outside. Can be prevented.

In addition, since the detection panel 90 protruding to the outside of the electronic device 100 installed inside the first manhole unit 20 is installed at the side adjacent to the first connection duct 43. Through this, the electronic device 100 in the second manhole unit 30 may be inspected or controlled. In particular, since the viewing window 33 is installed in the second manhole cover, the electronic device mounted in the second manhole unit 30 may be used. The 100 can be observed without disassembling the second manhole unit 30.

As described above, the manhole device according to the present invention can install electronic equipment that cannot be buried underground in consideration of moisture, so that the aesthetics are damaged by the beauty of the ground, especially the electronic equipment installed on the roadside. You can prevent it.

In particular, when electronic equipment such as electronics or precision equipments are buried underground, they can be protected from moisture, which can fundamentally prevent corrosion and malfunction due to moisture.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible.

Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (9)

A first manhole unit forming an underground cavity, A second manhole unit having an enclosed space in which electronic equipment is installed and mounted to the first manhole unit; And a circulation means for circulating external air and internal air due to a difference in air density within the sealed space of the first manhole unit. The method of claim 1, The second manhole unit includes a second body in which electronic equipment is embedded and an upper portion thereof is opened, a second manhole cover which is coupled to the second body to seal a space in which the electronic equipment is installed, and is provided with a viewing window, and the second body. Manhole device is installed and provided with a sealing member or connector surrounding the cable drawn out from the electronic equipment. The method of claim 1, The circulation means is installed on the upper side of the second body and extends from the ground to the first connection duct for discharging the heated air in the closed space of the second manhole unit to the outside, and the lower side of the second body And a second connection duct extending from the ground to the ground and introducing the ground air into the closed space of the second body by the difference in density of the air. The method of claim 3, wherein The second connection duct manhole device characterized in that it is further provided with a filter means for filtering foreign matter piggybacked in the air flowing through it. The method of claim 1, The manhole device, characterized in that the inside of the second body further comprises a heating heater for heating the air in the closed space. The method of claim 1, At least one side of the first and second connection ducts, the manhole device characterized in that a blower for promoting the circulation of air is installed. The method of claim 1, And a heat absorbing coating film formed on the first connection duct so that the inside of the connection duct extending to the ground by solar heat is heated in order to discharge the air of the enclosed space to the outside. A first manhole unit forming an underground cavity; A second body having an electronic device therein and having an open top, a second manhole cover which is coupled to the second body to seal a space in which the electronic device is installed and is provided with a viewing window, and installed in the second body. A second manhole unit having a sealing member or a connector surrounding a cable drawn out from the outside and installed in the underground cavity; A first connection duct installed at an upper side of the second body and extending from the ground to discharge the heated air in an enclosed space of the second manhole unit to the outside, and installed at a lower side of the second body; Circulating means having a second connection duct extending from the ground to the ground to introduce the ground air into the closed space of the second body by the difference in density of the air; A heating heater installed in the closed space of the second body; And a blower fan installed on at least one side of the first and second connection ducts. The method of claim 8, A filter case installed in the second connection duct, the filter case having upper and lower partition walls having flange portions at upper and lower ends and staggered at an inner wall, and having filter support portions at ends, a filter installed vertically at the filter support portion; And a filter means having a cover for sealing the insertion opening formed for the replacement of the filter in the case.

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