KR101188986B1 - An entering cover having safety foothold for working tank - Google Patents

Abstract

The present invention relates to an entrance cover for an underground buried work tank equipped with a safety scaffolding part, and a work tank buried beneath a road so that an operator can be displayed to the outside during work through a manhole to prevent a fall accident of the general public. A manhole cover installed at an upper end of the manhole cover, the body portion having a plate shape and having an entrance hole through which the worker enters and exits; A cover part foldably coupled to one end of the entry hole of the body part; And a safety scaffolding portion formed with an inlet hole movably coupled to a lower portion of the entry hole in the body portion.

Description

An entering cover having safety foothold for working tank}

The present invention relates to an entry cover for an underground buried work tank equipped with a safety scaffold, and more particularly, an operator is currently working on the inside of a working tank having an infrastructure such as electricity, water and communication equipment buried underground. The present invention relates to an entry cover for a work tank that can be displayed on the outside and prevents a safety accident by blocking an entry hole through a safety scaffolding unit.

Cables, pipes and tanks are laid underground in current roads and residential areas for various infrastructure such as electricity, water and telecommunications.

For the inspection, maintenance and management of these facilities, a space accessible to the worker is required. For this purpose, a work tank (also referred to as a 'valve chamber') is installed under the ground of roads and residential areas.

As such, an entrance cover exposed to the outside is separately installed to enter a work tank buried underground from the outside, and the entrance cover is normally left closed to prevent a vehicle or pedestrian from falling. .

The entrance cover is left unattended around the workplace when the worker is working inside the working tank, causing the pedestrians and vehicles to move and opening the working tank entry space, causing a safety accident.

A separate construction guide board is temporarily placed around the entrance space open during the work to visually confirm that it is currently under construction.However, such construction guide boards are likely to fall or break in the wind and at night to be exposed to external vehicles or roads. Problems that cause accidents exist because they can be identified only by the reflections of surrounding street lights.

In addition, since the working tank is buried in the ground, toxic gas such as methane gas left in the working tank for a long time is filled. As such, when an operator enters into a gas-filled working tank for maintenance, a safety accident may occur due to inhalation of toxic gas or lack of oxygen.

Therefore, when working inside a working tank, at least two people should form a tank, open the entrance cover, check for the presence of harmful gas in the working tank, provide sufficient ventilation, and set safety rules to allow workers to enter the work. This is done.

However, in practice, workers often work without the safety rules well followed, which causes workers to inhale harmful gases or suffocate safety accidents.

Therefore, until now, in order to determine whether harmful gas remains in the working tank, a separate oxygen concentration meter or a noxious gas meter was used to check whether there was no harmful gas in the working tank.

However, these measuring instruments are not only expensive but also have many workers who are troublesome to carry the equipment. In fact, these measuring machines are actually performing work without sufficient ventilation time without checking for harmful gases.

The present invention was derived to solve the conventional problems as described above, to provide an entry cover for a work tank that can prevent the accident of falling of vehicles or pedestrians and ventilate harmful gases while the worker is working inside the work tank. The purpose.

It is another object of the present invention to provide an entry cover for a work tank that can be easily identified even at night work because it can be displayed by using a printing sheet or a light emitting element such that the slant is erected rather than leaving the entrance cover at work. will be.

Still another object of the present invention is to provide an access cover for a work tank that enables a worker to check whether residual gas remains inside the work tank from the outside, thereby preventing a safety accident of the worker.

In order to achieve the above object, the entry cover for the underground buried work tank with a safety footrest according to an embodiment of the present invention, the body portion is formed with an entry hole 135 having a plate-like shape, the operator can enter and exit ( 130); A cover 110 configured to be erected at an oblique predetermined slope at one end of the entrance hole 135 of the body 130 when opened for work; And a safety scaffolding part 150 coupled to the lower portion of the entry hole in a sliding manner.

In this embodiment, the surface corresponding to the stopper seating surface 134 in the cover part 110 is inclined at a predetermined angle so that the cover part 110 can be erected at a predetermined inclination when the cover part 110 is opened for work ( 114, the stopper seating surface 134 may be formed at an entrance hole 135 of the body 130 to be in contact with the cover 110 at a predetermined angle.

In the present embodiment, the cover sheet 110 may further include a printing sheet 113 attached to the upper surface.

In the present embodiment, the cover unit 110, the detection unit 115 for detecting a state in which the cover 110 is erected from the body portion 130; A display lamp 113 'which performs a light emitting operation; And a controller 119 for controlling the blinking or bladder operation of the display lamp 113 ′ according to the detection signal of the detector 115.

In the present embodiment, the cover portion 110 includes: a key insertion hole (116a) formed on the upper surface for locking and unlocking the cover portion and the body portion; And when the key is rotated in the state in which the key is inserted into the key insertion port 116a may further include a hanger (116b) for the cover 110 to be locked to the body portion 130.

In the present embodiment, the cover unit 110 may further include a danger warning lamp 117 that emits light under the control of the controller when a danger signal is detected from a gas detector installed inside the working tank. have.

In this embodiment, the lower side surface of the body portion 130 is formed with a first support hole 143, the first support hole 143 at one end of the support bar 145 of the height adjustment means formed in the working tank Can be combined.

According to the present invention, the operator can easily move in and out of the work tank by operating the slide movable scaffold, and if the scaffold is repositioned afterwards, an entry cover for the work tank which can prevent a fall accident of an external vehicle or a pedestrian can be provided. Can be.

In addition, according to the present invention, the printing sheet and the display lamps provided at the upper and lower portions of the cover part are installed so that the operator can easily identify that the worker is working easily from the outside when working in the working tank, especially at night. A cover can be provided.

In addition, according to the present invention, it is possible to provide an access cover for the working tank, which can identify whether the concentration of harmful gas inside the working tank before working.

In addition, the access cover according to the present invention may have the effect of a manhole cover that can be drained by being installed in the manhole installed in the water and sewage in addition to the working tank.

1 is a perspective view of the entrance cover and the working tank for the underground buried work tank provided with a safety footrest according to the present invention.
Figure 2 is a perspective view showing the entrance cover of the entry cover for the underground buried work tank with a safety footrest in accordance with the present invention.
FIG. 3 is an exploded perspective view of FIG. 2. FIG.
4 is a bottom exploded perspective view of FIG. 2.
5 is a cross-sectional view taken along line AA of FIG. 2.
(A) and (b) of FIG. 6 are sectional views taken along the line BB of FIG.
Figure 7 is a perspective view of another embodiment of the entry cover for the underground buried work tank with a safety footrest in accordance with the present invention.
FIG. 8 is a combined perspective view of FIG. 7.
9 is another embodiment of the entry cover for the underground buried work tank with a safety footrest according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described for each embodiment the entry cover for the underground buried work tank with a safety footrest according to the present invention.

In the following description of the present invention, if it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. Further, the terms described below are terms set in consideration of the functions of the present invention, and these terms may vary depending on the intention or custom of the producer producing the product, and definitions of the terms should be based on the contents throughout the specification.

Hereinafter, with reference to the accompanying drawings Figures 1 to 6 will be described the entrance cover for the underground buried work tank with a safety footrest according to the present invention.

Here, Figure 1 is a perspective view of the entry cover and the working tank for the underground buried work tank with a safety scaffold according to the present invention, Figure 2 is a view of the entry cover for underground buried work tank with a safety scaffold according to the present invention 3 is an exploded perspective view of FIG. 2, FIG. 4 is a bottom exploded perspective view of FIG. 2, FIG. 5 is a cross-sectional view taken along line AA of FIG. 2, and FIG. 6A (b). 2 is a cross-sectional view along the line BB of FIG.

First, as shown in FIG. 2, the entry cover (100: hereinafter referred to as an entry cover) for an underground buried work tank having a safety scaffold according to an embodiment of the present invention includes a cover 110 and a body 130. ) And a safety scaffolding unit 150, and is installed on the top of the work tank 10 buried in the basement of the road and residential area is used for the worker to enter and exit.

First, the cover unit 110 is formed on the body 130 to be described later as a component for allowing the operator to visually identify that the construction is under construction to the pedestrian or driver when the operator opens and closes to enter the working tank 10. A cover part hinge 112 corresponding to the body part hinge 132 formed at one end of the entrance hole 135 is formed, and is foldably coupled to the body part 130.

In this case, the cover 110 is normally blocked to prevent entry of the working tank 10 to prevent the falling accident of the vehicle or pedestrian, and when the worker's work to display the current work to the outside Will be performed.

In addition, the cover portion 110 is formed with a stopper inclined surface 114, together with the stopper seating surface 134 of the body portion 130 to help maintain the cover 110 is inclined at a predetermined angle.

In addition, the upper and lower surfaces of the cover 110 may be provided with a printing sheet 113 and the display lamp 113 'as a means for visually identifying to the vehicle and pedestrians that work is currently being performed. The sheet 113 is attached to the upper surface of the cover unit 110 by using photoluminescent printing paper or reflective printing paper so that both day and night can be identified, and the display lamp 113 ′ is lower than the cover unit 110. It is attached to the surface to alert pedestrians and drivers that they are working.

That is, the worker is rotated with each other by the cover hinge 112 formed in the cover 110 and the body hinge 132 formed in the body 130 when the working tank 10 inside the working tank 10, at this time, at a predetermined angle The stopper inclined surface 114 of the formed cover part 110 and the stopper seating surface 134 of the body part 130 come into contact with each other so that the cover part 110 is opened in a shape like '∠' to cover the cover part. The print sheet 113 and the display lamp 113 'provided at the upper and lower portions of the 110 are exposed to be easily identified with the naked eye. The printing sheet 113 may attach one or more of the printing sheets 113 to an appropriate position of the cover unit 110.

In addition, since the printing sheet 113 provided on the upper portion of the cover 110 may be exposed to the outside even in normal times, it is preferable to use a printing paper which is less susceptible to damage even from external impact, but the cover 110 The display lamp 113 ′ provided at the lower portion of the display lamp may be distinguishable using a light guide plate or a light-emitting LED, etc., in addition to printing paper.

In this case, when the display lamp 113 ′ is used as a light guide plate or an LED light emitting device, as illustrated in FIG. 4, a sensing unit 115 and a control unit 119 are provided on a lower surface of the cover unit 110. The electric signal received from the unit 115 may enable the operation of the display lamp 113 ′ through the control unit 119. For example, the sensing unit 115 attaches terminals to the upper and lower ends of the spring, and in the state in which the cover 110 covers the body 130, the spring is compressed and the terminals of both ends are electrically shorted. Detecting that the cover 110 covers the body 130 and in the state in which the cover 110 is rotated in the body 130, the compressed state of the spring is released to electrically open the terminals at both ends. ) To detect that the cover 110 is rotated in the body 130. However, the present invention is not particularly limited to such mechanical sensing, and may be replaced using a light sensing sensor or the like according to a person skilled in the art or a manufacturer.

On the other hand, the position where the sensing unit 115 is formed is preferably formed at a position in contact with the cover portion mounting base 136 to be described later.

In addition, the cover unit 110 is provided with a key insertion hole 116a and a locking stand 116b which are the locking device 116 to lock and unlock the cover 110 and the body 130.

Here, when the locking device 116 rotates the key while the key is inserted into the key insertion hole 116a, the locking hole 116b is rotated in response to the rotation, so that the cover part 110 is attached to the body 130. Perform the function to make it fixed.

In addition, a warning lamp 117 having a gas detection function may be additionally attached to the upper surface of the cover part 110. The warning lamp 117 may be harmfully detected by a gas detector inside the working tank 10. When the gas concentration is greater than or equal to the reference set value, it is operated by the electric signal of the control unit 119 to enable the operator to check the concentration of harmful gas inside the working tank 10 from the outside to prevent safety accidents.

In addition, a handle 118 may be provided at an upper portion of the cover 110 to facilitate opening and closing of the cover 110.

In addition, the body 130 supports the cover 110 and has a plate shape as a component to be coupled to the working tank 10 and has an entry hole 135 and a lower portion of the cover 110 for entry of an operator. The guide 138 is formed to allow the cover part mounting table 136 and the safety footrest part 150 to slide on the surface thereof to allow the slide movement.

Here, a body hinge 132 corresponding to the cover portion hinge 112 of the cover portion 110 is formed at one side of the entry hole 135, and the body hinge 132 is formed at the entry hole 135. The formed surface is formed with a stopper seating surface 134 inclined at a predetermined angle.

In this case, the stopper seating surface 134 may be in contact with the stopper inclined surface 114 of the cover unit 110 to maintain a state in which the cover unit 110 is inclined at a predetermined angle.

Detailed description thereof will be omitted in the above-described relationship.

In addition, the cover seat 136 is a component that prevents the cover 110 is separated from the interior of the working tank 10, as shown in Figure 3, the entrance hole 135 from the inner end to the center side It is preferably formed to be extended to the extent that the worker enters into the working tank (10).

At this time, the coupling hole 139 is formed in the lower portion of the cover portion mounting table 136 in order to engage the hanger 116b formed in the cover 110.

In addition, the guide 138 is a component that allows the safety footrest 150 to be described later slide movement forward / rearward symmetrically formed to face each other on the lower surface of the body portion 130, the safety footrest ( Preferably, the space 138a is formed to seat the 150.

In addition, the safety scaffolding unit 150 is a component that allows the worker to enter the working tank 10 to block the entrance hole 135 from the outside at the time of work to prevent the pedestrian or the vehicle from entering the body 130. It is coupled to be movable in a sliding manner along the guide 138 formed at the bottom of the).

In addition, first and second handles 151 and 153 are provided on one side upper and lower surfaces of the safety scaffolding part 150 to easily move in a sliding manner through the guide 138.

That is, the first handle 151 formed on the upper side of the safety scaffolding part 150 is used when the worker enters into the working tank 10 for the work and the second handle 153 is the working tank 10. In order to facilitate the movement of the safety scaffolding part 150 within the working tank 10 by the worker who enters the inside of the safety scaffolding part 150, it is formed to facilitate the closing of the entrance hole 135. To prevent safety accidents.

At this time, the safety scaffolding unit 150 has a plurality of inlet holes 155 is formed to enable the concentration of the circulating gas and the harmful gas in the working tank 10 and the outside air.

Hereinafter, the operation of the entry cover for the underground buried work tank with a safety footrest according to the present invention having the configuration as described above will be described with reference to the drawings.

First, Figure 5 is a cross-sectional view taken along the line A-A of Figure 2, Figure 6 (a) (b) is a cross-sectional view taken along the line B-B of FIG.

As shown in Figure 5, the entry cover 100 for the underground buried work tank with a safety footrest according to the present invention is the body portion fused to the work tank 10 so that there is usually no inconvenience in the passage of vehicles or pedestrians By the coupling hole 139 of the 130, the locking stand 116b of the locking device 116 is bound to bind the cover 110.

After that, when the work of the working tank 10 is necessary, through the warning lamp 117 provided in the cover 110, it is visually checked whether the concentration of harmful gas in the working tank 10 is visually determined and the concentration is high. When it is displayed, the stopper 116b is released from the coupling hole 139 using the key insertion hole 116a to open the cover 110 using the handle 118, and a stopper formed at one side of the cover 110. The inclined surface 114 and the stopper seating surface 134 of the body portion 130 come into contact with each other to be supported at a predetermined angle, and ventilated.

In this case, when the work is performed at night, the sensing unit 115 formed at the bottom of the cover unit 110 is released and the signal is received from the control unit 119 provided at the bottom of the cover unit 110. The display lamp 113 ′ emits light to notify the outside that night work is in progress.

Then, when the ventilation of the inside of the working tank 10 is completed, the worker slides the safety scaffolding part 150 through the guide 138 using the first handle 151 formed on the safety scaffolding part 150. After moving to enter the working tank 10 again, through the second handle 153 formed in the lower portion of the safety scaffolding 150 to move the safety scaffolding 150 to the original position by sliding the entrance hole 135 ) To the outside and work on the work.

And, the entry cover 100 for the underground buried work tank with a safety footrest according to the present invention, as shown in Figure 7 to 9, the height adjusting means and the manhole of the general water and sewage when coupled to the work tank 10 It is possible to provide other embodiments to be used as well.

First, Figure 7 is a perspective view of another embodiment of the entry cover for the underground buried work tank with a safety footrest according to the present invention and Figure 8 is a perspective view of FIG.

As shown, the entry cover 100 for the underground buried work tank with a safety footrest according to the present invention is the body described above to be coupled to the height adjustment in accordance with the depth of the working tank 10 buried underground One side of the extension plate 141 extending a predetermined length in the vertical direction from the end of the portion 130, the first support hole 143 and the first support hole 143 formed in the lower portion of the extension plate 141 The other side is coupled to include a height adjusting means 140 made of a 'c' shaped support bar 145 is coupled to the second support hole (143a) formed in the working tank (10).

In more detail, as shown in FIG. 8, the work tank 10 buried underground should have a different depth buried underground according to the situation of the ground or the size of the work tank 10.

At this time, the extension plate 141 extending in the vertical direction from the end of the plate-shaped imaginary body 130 so that the access cover 100 is exposed to the outside depending on the depth of the work tank 10 is buried underground In this case, the entrance cover 100 may be exposed to the outside according to the depth to be embedded.

In addition, by forming a first support hole 143 in the lower portion of each of the extension plate 141 and using the 'c' shaped support bar 145 capable of male and female coupling through the first support hole 143. When coupled to the second support hole (143a) formed in the working tank 10 it is possible to adjust the height by a certain height.

At this time, the second support hole (143a) formed on the upper portion of the working tank 10 is an example of the height adjustment means 140 is preferably formed in the vertical direction.

In addition, in addition to the work tank 10, the access cover 100 can be used as a manhole cover that is generally installed on the water and sewage of roads and residential areas.

In this case, as shown in FIG. 9, when the plurality of drain holes 120 are formed in the cover part 110 in the vertical direction, the waste water is introduced into the sewer through the drain holes 120 and the waste water is introduced again. Through the inlet hole 155 formed in the safety scaffolding unit 150 will allow the waste water to flow into the sewer.

In the above, specific embodiments of the present invention have been described.

However, the spirit and scope of the present invention is not limited to these specific embodiments, and various modifications and changes can be made without departing from the spirit of the present invention. If you grow up, you should understand.

Therefore, the embodiments described above are provided to fully inform the scope of the invention to those of ordinary skill in the art, and should be understood as illustrative and not limiting in all respects. The invention is only defined by the scope of the claims.

10: working tank 110: access cover
112: cover hinge 113: printing sheet
113 ': Indicator lamp 114: Stopper slope
115: detection unit 116: locking device
116a: key insert 116b: hanger
117: warning lamp 118: handle
119: control unit 120: drain hole
130: body portion 132: body portion hinge
134: stopper seating surface 135: entry hole
136: seat cover 138: guide
138a: space 139: coupling hole
150: safety footrest 151: first handle
153: second handle 155: inlet hole
140: height adjustment means 141: extension plate
143: first support hole 143a: second support hole
145: support bar

Claims (7)

A body portion 130 having a plate shape and having an entrance hole 135 through which an operator can enter and exit;
A cover 110 configured to be erected at an oblique predetermined slope at one end of the entrance hole 135 of the body 130 when opened for work; And
And a safety scaffolding part 150 formed with an inlet hole 155 that is slidably coupled to the lower part of the entrance hole, and the cover part 110 to be erected at a predetermined slope when the cover part is opened for work. In the surface corresponding to the stopper seating surface 134 is a stopper inclined surface 114 is formed to be inclined at a predetermined angle, the surface in contact with the cover 110 in the entrance hole 135 of the body 130 A stopper seating surface 134 formed to be inclined at a predetermined angle is formed, and the body 130 includes a guide seat 136 for supporting the lower surface of the cover part and a guide configured to slide the safety footrest ( 138 is formed, and a first support hole 143 is formed at the lower end side of the body portion 130, and the first support hole 143 at one end of the support bar 145 of the height adjustment means formed in the working tank. Underground burial Cover up the entry for the tank. delete The method of claim 1,
Entry cover for underground laying work tank further comprises a printing sheet 113 attached to the upper surface of the cover portion 110. The method of claim 1,
The cover unit 110, the detection unit 115 for detecting a state in which the cover unit 110 is erected from the body portion 130;
A display lamp 113 'which performs a light emitting operation; And
The entrance cover for underground buried work tank further comprises a control unit (119) for controlling the flashing or light emission operation of the display lamp 113 'according to the detection signal of the detection unit (115). The method of claim 1, wherein the cover 110 is:
A key insertion hole 116a formed on an upper surface for locking and releasing the cover part and the body part; And
When the key is rotated in the state in which the key is inserted into the key insertion port 116a, the cover 110 further comprises a hanger 116b to be locked to the body portion 130, characterized in that the basement Entry cover for buried work tank. The method of claim 4, wherein the cover 110 is:
When the danger signal is detected from the gas detector installed inside the working tank, the entrance cover for underground buried work tank, characterized in that it further comprises a danger warning lamp 117 that emits light under the control of the controller.
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