KR101718140B1 - Ventilation facility for safety maintenance of Underground common duct - Google Patents

Abstract

The present invention relates to a ventilation facility for safety maintenance of an underground common duct in which a ventilation duct is formed to communicate with the inside of the underground common duct and of which a discharge port is formed to communicate with the ground, and a porous ventilation cover is detachably coupled to an upper end of an opening portion of the ventilation duct. Accordingly, the present invention can make the underground common duct to have a pleasant environment through supplying fresh outside air and discharging air inside the underground common duct.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation facility for safety maintenance of an underground joint,

The present invention relates to a ventilation system for safety maintenance of an underground cavity, and more particularly, to a ventilation system for a safe maintenance of an underground cavity, and more particularly, to an underground cavity through a ventilation of the air in the underground cavity and fresh air, It is possible to prevent injuries of workers and passengers due to fall or fall, and the ventilation cover is light in weight, so that the ventilation cover can be easily separated and installed. Facilities.

In general, underground joints are used to collect underground facilities (electricity, gas, water supply facilities, telegraph lines, sewage facilities, etc.) accompanied by road excavation, Facilities. Various facility facilities are concentrated in the joint area without installation of ground processing lines such as electric pole line including Jeonju. Therefore, the collective is able to maintain various kinds of facilities at the same time in one place and can produce a comfortable ground space, so that it is applied to a new city, a commercial district, an apartment complex, etc.

Such an underground joint is formed by digging the ground as much as the space for installation of the joint when constructing a road or an apartment complex, and installing the floor slab, both side walls and ceiling slab by in situ concrete pouring. The underground joint is connected to the building at the middle or underground floor of the underground outer wall of the building. The electricity, gas, water supply facilities, and the cable and sewage facilities are connected to the inside of the building.

In addition, the underground pipe is provided with ventilation facilities for contacting the outside air. In the case of subway, it is installed at the same height as the height of India, or ventilation is installed at about 1m and 20cm height in India. This type of underground ventilation system is used as a ventilation system for the circulation of air and it is also used as a gateway for the maintenance of the underground system.

However, according to the ventilation facility for the safety maintenance of the underground joint, the worker removes the ventilation cover installed in the ventilation hole from the ventilation opening and enters the underground cavity using a ladder or rope, and maintenance work is completed The ventilation cover must be covered with a ventilation cover after the ventilation cover is made of a ladder or a rope or the like. The ventilation cover is so heavy that it is very difficult and inconvenient to remove the ventilation cover.

In addition, when a worker enters the inside of the underground joint in a state where the harmful gas is stagnated, life sometimes becomes dangerous due to the harmful gas. In the maintenance work of the inside of the underground joint, The fresh air can not flow smoothly, and after a certain period of time, it has to repeatedly come out of the cavity and enter the inside again.

In addition, there is a safety problem that a ventilator cover is placed on one side of a ventilation hole of an underground cavity, and the ventilator falls into the ventilator due to carelessness during maintenance work, resulting in a serious injury to an operator or a passenger.

(1) Korea Patent Registration No. 10-1322765

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide an underground cavity in a pleasant environment through ventilation of the air in the underground cavity and fresh air supply and to reduce the entrance of passengers around the ventilation hole And the ventilation cover can be easily removed by installing the ventilation cover so that the ventilation cover can be easily and safely installed. have.

In order to achieve the above object, according to the present invention, a ventilation duct is formed so as to communicate with the inside of an underground cavity and an exhaust port communicates with the ground, and a ventilation duct having a porous ventilation cover detachably coupled to an upper opening of the ventilation duct is formed In a ventilation facility for safe maintenance of a cavity,

The ventilation duct may include:

An entrance and exit ladder having a plurality of ladder rods fixed at predetermined intervals in a vertical direction on one side of a front side;

The air-

The left and right inner side surfaces are formed with left and right guide grooves elongated in the fore and aft direction. The left and right side end portions of the inner side on the front side are respectively inserted and fixed with C-shaped fixing pins on the front side A left and a right fixing holes are formed in the left and right side bottom holes of the front side;

A left and a right vertical bar lifted up and down by being inserted into the right and left guide grooves respectively at left and right ends of the rectangular vertical frame standing upright on the inner side front side of the ventilation lid frame, And upper and lower horizontal bars each having a plurality of left and right fixed extension holes into which the fixing pins are respectively inserted, the upper and lower ends of the left and right vertical lift bars being horizontally extended and chewed, And a plurality of vertical support bars on the rear side of the front fence portion are formed with a ladder, which is formed by a plurality of protruding ladder rods each having a flat C-shape and protruding rearward at regular intervals in a vertical direction, And the left and right vertical lift bars of the front fence Each of which has left and right wing bars extending respectively from the end to the rear of the left and right wing bars and extending from the rear ends of the left and right wing bars to the upper ends of the left and right vertical lift bars, The left and right side fences each having right and left vertical bars are fixedly installed on the inner side of the ventilation lid frame to guide the worker in and out of the underground cavity,

Left and right side support legs extending in the fore and aft direction are formed on the inner surface of the ventilation lid frame and are folded and folded, And left and right rollers slidable on the left and right rear slanting bars are pivotally coupled to the right and left sides of the front support rods so as to be rotatable, Wherein an ornamental film having clasps at left and right sides is wound and held by elasticity of an inner spring and is connected to an outer edge of an ornamental pouch pocket which is unfolded by an external force, Supporting frame; And

A left and right pivotal base extending axially forwardly and rearwardly from the inside of the folding support frame and being pivotally coupled by a pivotal bar of the left and right support rods, A left and right sliding pivots respectively inserted into the left and right guide grooves and slidably moved are formed on left and right ends of the rear side of the left and right pivots, respectively, And a rear pivot for connecting the rear ends of the left and right pivot blocks to each other is formed and a plurality of connecting blocks for connecting the left and right pivot blocks at predetermined intervals are formed, The left and right intake and exhaust fans are each provided with a pair of pans It is characterized in having a folding intake and exhaust naeteul secured respectively coupled by large.

As described above, according to the present invention, it is possible to create a pleasant environment through the exhaust of the air in the underground cavity and the supply of fresh outside air, and by blocking the entry of the passengers around the ventilation opening, And the ventilation cover is light in weight, so that the operation of separating and installing the ventilation cover can be accomplished very easily.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

FIG. 1 is an exploded perspective view showing a fastening state of a ventilation facility for safety maintenance of an underground joint according to an embodiment of the present invention,
FIG. 2 is a front perspective view showing a state of use of a ventilation facility for safe maintenance of an underground joint according to an embodiment of the present invention,
FIG. 3 is a rear perspective view showing a state of use of a ventilation facility for safety maintenance of an underground joint according to an embodiment of the present invention,
4 is an enlarged side sectional view of the main part showing the use state of the ventilation facility for safety maintenance of the underground joint according to the embodiment of the present invention,
FIG. 5 is a plan view showing a state of a ventilation facility for safety maintenance of an underground joint in an embodiment of the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the user, the intention or custom of the operator, and the like.

Therefore, it goes without saying that the definition should be based on the contents throughout this specification.

A ventilation system for safety maintenance of an underground joint of the present invention comprises a ventilation duct (2) formed to communicate with the inside of an underground cavity and an exhaust port communicating with the ground, and a ventilation duct (2) detachably coupled to an upper opening of the ventilation duct The ventilation duct 2 is formed with an entrance and exit ladder 50 having a plurality of ladder rods 51 fixed at upper and lower sides thereof at predetermined intervals on a front side of the ventilation duct 2, The ventilating lid 1 includes a ventilating lid 10 fixedly installed at the upper end of the ventilating duct 2 and a ventilating lid 10 guiding the operator into the ventilating duct 2 while being lifted up and down by the ventilating lid 10, A ladder fence 20 for preventing passengers from falling down into the ventilation duct 2 and a ladder fence 20 which is axially coupled to the outside of the foldaway ladle interior 40 and supported on the inclined surfaces of the ladder fence 20, A folding support frame 30 on which the folding support frame 34a is spread, It is possible to prevent the outside passengers from falling down into the ventilation duct 2 while being axially coupled to the inner center of the mold 30 and to operate the left and right intake and exhaust fans 47 and 48 at a certain angle, And a folding / sucking-and-ejecting machine frame 40 that keeps it fresh.

The ventilation cover frame 10 is a rectangular ring body fixed to the inner periphery of the upper opening of the ventilation duct 2. Left and right guide grooves 11 and 11a are formed on the left and right inner side surfaces to extend forward and backward, Right and left fixing holes 12 and 13 are formed in the left and right ends of the side surface of the left and right sides, respectively. The left and right support holes 14a, The left and right support ribs 13 and 14 are formed.

The elevating ladder fence 20 is a rectangular frame that vertically stands on the inner side front side of the ventilating lid frame 10 and is inserted into the left and right guide grooves 11 and 11a at right and left ends, The fixing pins 12a and 13a are vertically formed on the upper and lower ends of the left and right vertical lift bars 21a and 21b and on the extension of the left and right fixing holes 12 and 13, And upper and lower horizontal bars 21c and 21d each having a plurality of left and right fixed extension holes 21a 'and 21b' to which the left and right vertical lift bars 21a and 21b are inserted, respectively, A front fence portion 21 having a plurality of vertical support bars 21e vertically connecting the upper and lower horizontal bars 21c and 21d at predetermined intervals is formed and a plurality of vertical support bars 21a, (21e) has a U-shaped planar shape and protrudes rearward at regular intervals in the vertical direction The left and right wing bars 23a and 23b extending from the lower ends of the left and right vertical elevating bars 21a and 21b of the front fence unit 21 to the rear side, respectively, are formed with a ladder portion 22 comprising a plurality of protruding ladder bars 22a, 24b extending from the rear ends of the left and right wing bars 23a, 24a to the upper ends of the left and right vertical lift bars 21a, 21b, respectively. The left and right rear inclination bars 23a, 24b each having a plurality of left and right vertical bars 23c, 24c connecting the right and left side wing bars 23a, 24b and the left and right side wing bars 23a, 24a at regular intervals, And is fixedly installed to guide the worker's access to the underground joint, thereby blocking the entrance and fall of the outsider by carelessness.

The left and right support rods 31 and 32 are respectively formed on the inside of the ventilating lid frame 10 and are folded and folded so as to extend to the front and rear sides respectively. Left and right sliding protrusions 31a and 32a are respectively inserted into the left and right guide grooves 11 and 11a and slidably inserted into the left and right guide grooves 11 and 11a. Left and right rollers 33a and 33b which are slid on the upper surfaces of the left and right rear inclination bars 23b and 24b are pivotally coupled to the left and right sides of the front support frame 33, (35a, 35b), which are held by the elasticity of the inner spring (not shown) and are held by the outer force, are provided on the rear end of the rear ends (31, 34) And, the left and right supports (31, 32) coaxial bars (35,35a) once into the center side are coupled to each shaft.

The folding sucking and inserting machine frame 40 is located inside the folding support frame 30 and is folded and unfolded to prevent the passengers from falling into the ventilation duct 2 and the fresh air outside the under- Left and right pivotal supports (31, 32) are rotatably and axially pivotally connected to each other by rotation axis bars (35, 35a) of the left and right support rods (31, 32) 41a and 43b formed on the left and right sides of the left and right pivots 41 and 42 and respectively have latch holes 43a and 43b to which the left and right latches 34b and 34c are respectively inserted and fixed, The left and right sliding pivots 44 and 44 are inserted into the right and left guide grooves 11 and 11a and are slidably inserted into the right and left guide grooves 11 and 11a. 44a are formed And a rear pivoting bail 45 to which the rear ends of the left and right pivoting bands 41 and 42 are connected and fixed and a plurality of connecting rods 46 connecting the left and right pivoting bands 41 and 42 at predetermined intervals, Left and right intake and exhaust fans 47 and 48 are respectively coupled and fixed to the left and right sides of the bottom surface of the plurality of linking rods 46 by a pair of fan fixing rods 47a and 48a, respectively.

The present invention can be applied to a ventilating lid 10 of a ventilating lid 1 of a ventilating duct 2 for maintenance work in an underground cavity by the left and right supporting bores 14a The upper horizontal bar 21c of the front fence portion 21 of the ascending / descending ladder fence 20 fixedly hooked to the upper and the lower horizontal bar 21a and 15a.

At this time, the elevating ladder fence 20 vertically rises while the left and right rear inclined surfaces 23b and 24b of the left and right side fence portions 23 and 24 are raised together to push the front support frame 33 of the folding support frame 30 backward The left and right side sliding projections 31a and 32a of the left and right side support rods 31 and 32 fixed to the front support rods 33 are rotated by the left and right side rollers 33a and 33b which are in contact with the rearward inclined surfaces 23b and 24b, And is gradually moved to the rear side on the grooves 11 and 11a.

The left and right sliding protrusions 31a and 32a of the left and right support rods 31 and 32 are slidly moved rearward on the left and right guide grooves 11 and 11a so that the rotation support shaft 35 and 35a And the folded sucking and damping machine inner frame 40 is fixedly installed diagonally opposite to each other while rising in the vertical direction about the rotary shaft bars 35 and 35a.

When the elevator ladder fence 20 is raised to an appropriate height in this state, the worker pushes the U-shaped fixing pin 12a.13a to the left and right of the vertical lift bars 21a and 21b of the front fence unit 21, The fixing pins 12a and 13a penetrate the left and right fixing elongated holes 21a 'and 21b' to be inserted into the left and right fixing holes 12a and 21b 'of the cover frame 10, 13, the elevating ladder fence 20 is fixedly coupled to the ventilating lid 10.

At this time, the operator fixes the left and right intake and exhaust fans 47 and 48 of the folded intake and exhaust dome 40 at a fixed angle at the pan fixing stages 47a and 48a, and then operates the left and right intake and exhaust fans 47 and 48, 2) to ventilate the outside fresh air to the inner underground cavity and to discharge the harmful air from the inside to the outside for a certain time.

Then the worker pulls out the shade film 34a from the shading film pocket 34 of the folding support frame 30 and pushes the left and right latches 334b and 34c to the latch hole 43a of the front pivoting stand 43 43a and 43b of the ventilation duct 2 to provide an ornamental shield 34a on the upper portion of the ventilation duct 2 to inform the user of the maintenance work of the underground cavity and to prevent the outside passengers from entering and leaving the ventilation duct 2 The ladder portion 22 of the ascending / descending ladder fence 20 and the entering / exiting ladder 50 inside the ventilation duct 2 may advance into the underground cavity to perform the maintenance work.

1: Ventilation cover
2: Ventilation duct
10: Ventilation cover frame 11, 11a: Left and right guide grooves
12, 13: left and right fixing holes 12a, 13a:
14, 15: left and right supporting bracing parts 14a.15a: left and right supporting bores
20: elevating ladder fence 21: front fence part
21a and 21b: left and right vertical lift bars 21a 'and 21b': left and right fixed extension holes
21c, 21d: upper and lower horizontal bars 21e: vertical support bars
22: ladder portion 22a: protruding ladder rod
23, 24: left and right side fence portions 23a, 24a: left and right side wing bars
23b, 24b: left and right rear inclination bars 23c, 24c: right and left vertical bars
30: folding support frame 31, 32: left and right supports
31a, 32a: left and right sliding projections 33:
33a.33b: left and right rollers 34: shade pocket
34a: Awnings 34b, 34c: Clasp
35, 35a:
40: a folding-and-sucking-and-dispensing machine frame 41, 42:
43: front pivot 43a, 43b: latching hole
44, 44a: left and right sliding projections 45:
46: Links
50: Entry and exit ladders 51: Ladder rods

Claims (1)

A ventilation duct (2) is formed so as to communicate with the inside of the underground cavity and an exhaust port communicates with the ground, and a porous ventilation lid (1) detachably coupled to an upper opening of the ventilation duct In a ventilation facility for safety maintenance,
The ventilation duct (2)
An entrance and exit ladder 50 having a plurality of ladder rods 51 fixed at upper and lower sides at regular intervals on one side of the front side is formed;
The ventilation lid (1)
Left and right guide grooves 11 and 11a are formed on the left and right inner side surfaces to be long in the front and rear sides and a front U-shaped The left and right fixing holes 12 and 13 are formed in the left and right fixing holes 12a and 13a of the left and right fixing holes 12a and 13a, respectively. The left and right fixing holes 12 and 13 are formed in the left and right supporting holes 14a and 15a, A ventilation cover frame 10 in which the ventilation cover frames 13 and 14 are formed;
Left and right vertical lifting bars 21a and 21b which are respectively inserted into the left and right guide grooves 11 and 11a and raised and lowered at right and left ends thereof, respectively, as rectangular shaped frames vertically rising on the inner side front side of the ventilation lid frame 10 (12a, 13a) are formed at the upper and lower ends of the left and right vertical lifting bars (21a, 21b) and the intermediate portion thereof, and are provided on the extension of the left and right fixing holes And upper and lower horizontal bars 21c and 21d having holes 21a 'and 21b' and horizontally extending and contracting the upper and lower ends of the left and right vertical lift bars 21a and 21b, respectively, and the upper and lower horizontal bars 21c and 21d A plurality of vertical supporting bars 21e are formed at regular intervals and a plurality of vertical supporting bars 21e at the rear side of the front fence portion 21 are formed in a U- A plurality of protruding ladder bars projecting rearward at regular intervals in the vertical direction And left and right wing bars 23a and 24a extending from the lower ends of the left and right vertical lift bars 21a and 21b of the front fence portion 21 to the rear side, Left and right rear inclined bars 23b and 24b extending from the rear ends of the left and right wing bars 23a and 24a to the upper ends of the left and right vertical elevating bars 21a and 21b, respectively, and the left and right rear inclining bars 23b and 24b, Left and right side fence portions 23 and 24 having a plurality of left and right vertical bars 23c and 24c connecting the wing bars 23a and 24a at regular intervals are formed respectively so as to be wound around the inside of the ventilation cover frame 10 A lift ladder fence (20) fixedly installed while being lowered to guide the worker in and out of the underground joint, and to prevent an outsider from coming in and out of the worker due to carelessness;
Left and right support rods 31 and 32 extending in the fore and aft direction are formed respectively on the inner side surfaces of the ventilation lid frame 10 and are formed on the left and right side support rods 31 and 32, Left and right sliding protrusions 31a and 32a are inserted and slidingly inserted into the grooves 11 and 11a respectively and the forward ends of the left and right support rods 31 and 32 are connected and fixed by the front support rods 33, Left and right rollers 33a and 33b that are slid on the upper surfaces of the left and right rear inclination bars 23b and 24b are pivotally coupled to the left and right sides of the front support pedestal 33, (34a) each having a catch (34b, 34c) on its outer surface is wound and held by the elasticity of an inner spring (not shown) Left and right support The folded supporting outer frame (30) (31, 32) coaxial bars (35,35a) once into the center side of the axis are respectively bonded; And
The left and right center portions of the left and right support rods 31 and 32 are pivotally coupled to each other so as to be pivotable by the pivot bars 35 and 35a of the left and right support rods 31 and 32, And a pair of latch holes 43a and 43b in which the left and right latches 34b and 34c are respectively inserted and fixed are formed on the front side of the left and right pivots 41 and 42, Left and right sliding pivots (41, 42) are respectively inserted into the left and right guide grooves (11, 11a) and slidably inserted into the left and right sliding pivots The left and right pivots (41, 42) are connected to each other at regular intervals. The left and right pivots (41, 42) are connected to the rear pivots A plurality of connecting rods 46 are formed, And the left and right side intake and exhaust fans 47 and 48 are respectively coupled and fixed by a pair of fan fixing rods 47a and 48a so as to be adjustable in angle, Ventilation facilities.

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