KR102103456B1 - Access system for water tank - Google Patents

Abstract

The present invention relates to a water tank access system which easily opens and closes a manhole and facilitates entry into the manhole. The water tank access system comprises: a manhole cover driving unit coupled to one end of a manhole cover body to horizontally move the manhole cover body to open and close a manhole; a safety cover net embedded in the manhole cover body and withdrawn from the manhole cover body to temporarily close the manhole; and a ladder member for entry into a water tank. The ladder member includes: a first connection unit arranged on one side of the manhole and arranged to retreat and advance towards the manhole by a first actuator; a second connection unit connected to the first connection unit in a direction crossing a moving direction of the first connection unit; and a third connection unit connected to the lower end of the second connection unit to be moved downwards by a second actuator.

Description

Water Tank Access System {ACCESS SYSTEM FOR WATER TANK}

The present invention relates to a water tank access system, and more particularly, to a water tank access system that is easy to open and close a manhole hole and easily enters a manhole.

Manholes are provided in water tanks constructed in buildings to allow managers to enter and exit the water tanks for cleaning and maintenance.

The manhole has a manhole hole and a manhole cover for opening and closing the manhole hole, and the manhole cover is provided to be separated from the water tank so as to cover the manhole hole.

However, since the main body of the manhole cover used in the manhole for the water tank is mostly made of a heavy metal material, in the case of the conventional manhole provided to separate the manhole cover from the water tank, the manhole cover is opened to open and close the manhole hole. There was a difficulty in putting a lot of power into the work of lifting or seating in the manhole hole.

In consideration of this problem, Patent No. 10-1579956 discloses a manhole for a water tank including a manhole cover provided to open and close a manhole hole while sliding in a horizontal direction along a sliding rail.

However, in the above patent, since the opening and closing operation of the manhole is performed only by the sliding wheel, there is a problem in that the sliding wheel is worn and cannot be opened and closed, and the entrance into the manhole is still not easy.

KR 10-1579956 B1

Accordingly, one object of the present invention is to provide a water tank access system that is easy to open and close a manhole hole and easily enters into a manhole.

Other objects and advantages of the present invention will be described below, and will be learned by examples of the present invention. In addition, the objects and advantages of the present invention can be realized by means and combinations indicated in the claims.

In order to achieve the above object, the present invention includes a manhole hole provided on the top surface of the water tank to communicate the inside and outside of the water tank, and a manhole cover body provided to open and close the manhole hole while sliding in the horizontal direction A water tank access system comprising: a manhole cover driving unit fastened to one end of the manhole cover body to horizontally move the manhole cover body to open and close the manhole hole; A safety cover network built in the manhole cover body and drawn out from the manhole cover body to temporarily close the manhole hole; And a ladder member for entering the water tank, wherein the ladder member is provided on one side of the manhole hole and is disposed to be able to move back and forth toward the manhole hole by a first driver, and the first connector. The first connection portion includes a second connection portion connected in a direction intersecting with respect to the movement direction of the first connection portion, and a third connection portion movably connected to the lower end of the second connection portion by a second driver. It is characterized by.

The first connection portion is formed in a 'c' shape with one side open, the first driver for moving forward and backward on the other side, the second connection portion is provided as a pair, a plurality of footsteps are installed, Each of the second actuators for vertical movement of the third connection portion is provided therein, and the third connection portion functions as a safety scaffolding portion when moving up and down.

It characterized in that the lower end of the third connection portion is provided with an oxygen supply unit for supplying oxygen to the interior of the water tank and a harmful gas suction unit for sucking harmful gas from the interior of the water tank.

At one end of the oxygen supply unit, a sensing sensor for detecting harmful gas is additionally provided, and the oxygen supply unit includes a plurality of nozzles capable of injecting a uniform oxygen gas, and the plurality of nozzles are oxygen through a packing member. It is composed of a spherical nozzle made of a spherical shape installed on the supply body, and a branch pipe branched from an oxygen supply flow path and connected to the spherical nozzle, and a plurality of injection holes are arranged radially on the outer surface of the spherical nozzle. do.

It characterized in that it comprises a first magnet portion located at the rear end of the safety cover network, and a second magnet portion located at the end of the manhole cover body.

The ladder member includes a coating layer formed of a corrosion resistant coating solution composition on the outer surface, and the corrosion resistant coating solution composition is 3-Aminopropyl triethoxysilane (APTS), tetraethoxysilane (TEOS). , Stearic acid and dipropylene glycol (Dipropylene Glycol: DPG).

According to the present invention as described above, it is easy to open and close the manhole hole by driving the manhole cover by the manhole cover driving unit, and by providing an expandable ladder into the manhole, it is possible to provide a water tank access system that is easy to enter into the manhole. It has an effect.

1 and 2 is a schematic configuration diagram of a water tank access system according to the present invention,
3 is a schematic configuration diagram of the safety cover network of FIG. 1,
4 and 5 is a schematic configuration diagram of the ladder member of Figure 1,
6 is a view schematically showing the configuration of a locking unit according to another embodiment of the present invention.

Specific details of other embodiments are included in the detailed description and drawings.

Advantages and features of the present invention, and methods for achieving them will be clarified with reference to embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and in the following description, when a part is connected to another part, this is not only a case where it is directly connected. This includes cases where other media are connected in between. In addition, in the drawings, parts not related to the present invention are omitted in order to clarify the description of the present invention, and like parts are given the same reference numerals throughout the specification.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

1 and 2 are schematic configuration diagrams of a water tank access system according to the present invention, FIG. 3 is a schematic configuration diagram of the safety cover network of FIG. 1, and FIGS. 4 and 5 are schematic diagrams of the ladder member of FIG. 1 It is a phosphorus composition diagram.

First, referring to FIGS. 1 and 2, the manhole hole 10 provided on the upper surface of the water tank 1 to communicate the inside and the outside of the water tank 1 and the manhole hole 10 while sliding in the horizontal direction ) As a water tank access system including a manhole cover body 20 provided to open and close, it may include a manhole cover driver 100, a safety cover network 30, and a ladder member 200.

The manhole cover driving unit 100 may be fastened to one end of the manhole cover body 20 to horizontally move the manhole cover body 20 to open and close the manhole hole 10.

A fluid pressure cylinder may be employed as the manhole cover driving unit 100, but is not necessarily limited thereto, and any other, for example, an electric actuator or the like may be applied as long as the load of the manhole cover body 20 can be supported and moved. .

Preferably, the manhole cover driving unit 100 has a compact structure and is built in the manhole cover body 20 so that the manhole cover body 20 can be horizontally moved.

The safety cover network 30 is built in the manhole cover body 20 and may be configured to be temporarily drawn from the manhole cover body 20 and to temporarily close the manhole hole 20.

For the storage of the safety cover net 30, a receiving hole (not shown) of the safety cover net 30 may be formed in the manhole cover body 20.

In addition, a stopper (not shown) for temporarily restraining the movement of the safety cover network 30 may be provided around the manhole hole 20.

The safety cover network 30 can prevent a falling object from falling from the outside through a manhole hole 10 or enter or fall a person other than the worker by allowing the operator to open and close again after entering the manhole. .

Referring to FIG. 3, the safety cover net 30 may also be securely fixed in the manhole cover body 20 and accommodated. To this end, a first magnet part 32 located at the rear end of the safety cover network 30 and a second magnet part 22 located at an end of the manhole cover body 20 may be included.

In addition, the safety cover net 30 can be formed of a metal mesh structure that can confirm the inside of the manhole hole 10 and is not deformed by the applied load.

In another embodiment, the safety cover network 30 may be formed of a mesh structure using a carbon fiber cable material.

Here, the carbon fiber cable employed in the present invention is a cable formed by combining a carbon fiber and a thermosetting resin, and is designed to retain the best material performance of the carbon fiber, thus surpassing the characteristics of the existing cable as shown below. Have

ㆍ Light weight: specific gravity is 1.5, about 1/5 times that of steel

ㆍ High corrosion resistance: Excellent corrosion resistance to acid and alkali

ㆍ Low linear expansion: about 1/20 times of steel

ㆍ Flexibility: Coil winding is possible because it is close to the wire

ㆍ High strength: equal to or higher than the wire rod made by PC steel

In addition, for the purpose of reducing the friction coefficient of the carbon fiber cable material, the carbon fiber cable was impregnated with polyurethane resin according to the content using a dipping method. The content of the polyurethane resin after drying is preferably 10 to 40 parts by weight, preferably 20 to 30 parts by weight, relative to the total weight of the carbon fiber cable.

Due to the adoption of such a carbon fiber cable, there is an advantage that the safety cover network 30 can be configured more robustly and safely.

4 and 5, the ladder member 200 is for entering into the water tank, and may include first to third connection parts 210, 220, and 230.

The first connection portion 210 is provided on one side of the manhole hole 10 and is disposed to be able to move back and forth toward the manhole hole 10 side by the first driver 212, and the second connection portion 220 is the first The connection part 210 is connected in a direction crossing with respect to the moving direction of the first connection part 210, and the third connection part 230 is vertically moved up and down by a second driver 222 at a lower end of the second connection part 220. It can be movably connected in the direction.

Specifically, the first connection part 210 is formed in an 'c' shape with one side open, and includes the first driver 212 for moving forward and backward on the other side, and the second connection part 220 is one Although provided in pairs, a plurality of foot stepping portions 221 may be installed, and each of the second drivers 222 for vertical movement of the third connection portion 230 may be provided therein.

A wheel 214 may be formed on the first connection portion 210 to move along the guide rail 213 for movement.

In addition, a separate stopper that limits the drive of the wheel 214 may be provided at the end of the rail 213.

The third connection part 230 may function as a safety scaffolding part on which an operator's foot is placed when an operator moves up and down into a manhole.

That is, the operator is able to move up and down into the manhole by operating the second driver 222 in a state where the foot is placed using the third connection portion 230 as a safety scaffolding portion, so that entry into the manhole is very easy.

In particular, an oxygen supply unit 300 for supplying oxygen to the interior of the water tank and a harmful gas suction unit 400 for sucking harmful gas from the inside of the water tank are provided at the bottom of the third connection unit 230. It is characterized by.

In addition, one end of the oxygen supply unit 300 may be provided with a detection sensor (S) for detecting a harmful gas. Here, the length of the oxygen supply unit 300 may be longer than the length of the harmful gas suction unit 400, that is, close to the bottom of the manhole so that the detection sensor S can effectively detect the harmful gas.

Referring to Figure 5, the oxygen supply unit 300 is provided with a plurality of nozzles 300 capable of injecting a uniform oxygen gas, the plurality of nozzles 300, the oxygen supply unit via the packing member 330 as a medium Consists of a spherical nozzle 310 made of a spherical shape installed in the main body, and a branch pipe 320 branched from an oxygen supply flow path and connected to the spherical nozzle 310, and a plurality of outer surfaces of the spherical nozzle 310 The injection holes 311 are arranged in a radial shape.

Therefore, with the above-described configuration, oxygen gas can be dispersed and sprayed toward a large area in the manhole, and at the same time, it is possible to inhale harmful gases, thereby preventing safety accidents due to insufficient oxygen or harmful gases during work. Can.

On the other hand, the ladder member 200 may be coated with a composition of a corrosion-resistant coating solution to protect from corrosion and extend life.

That is, the ladder member 200 may include a coating layer formed of a corrosion-resistant coating solution composition on the outer surface. Here, the corrosion resistant coating solution composition is 3-Aminopropyl triethoxysilane (APTS), tetraethoxysilane (TEOS), stearic acid and dipropylene glycol (Dipropylene Glycol: DPG) It is characterized by including.

Preferably, the corrosion-resistant coating solution composition is 15-17 parts by weight of 3-aminopropyl triethoxysilane (APTS), 13-15 parts by weight of tetraethoxysilane (TEOS), 5-6 parts by weight Bustearic acid and 70-75 parts by weight of dipropylene glycol (Dipropylene Glycol: DPG).

3-Aminopropyl triethoxysilane is the most preferred tetraethoxysilane in order to provide a strong adhesion between the metal base materials and to form a stable metal surface coating, stearic acid is used as an additive to increase corrosion resistance, and dipropylene is used as a solvent. The combination of Lycol showed the best corrosion resistance performance.

In order to form a coating layer on the ladder member 200, it is immersed in a corrosion-resistant coating solution for 3 to 5 seconds by dipping. After applying the coating solution, it is dried and cured at about 100 to 150 ° C for 30 minutes to 1 hour to form a coating layer.

If necessary, the inside of the water tank 1, the manhole cover body 20 or the safety cover network 30 may also include a coating layer formed of a corrosion-resistant coating solution composition.

On the other hand, Figure 6 is a view schematically showing the configuration of the locking unit according to another embodiment of the present invention.

Referring to FIG. 6, the manhole cover body 20 is further provided with a locking portion 500 that is operated by magnetic force as a safety device so that the manhole cover body 20 of the water tank 1 cannot be opened without permission. have.

The locking part 500 is disposed spaced apart from the groove 511 and the electromagnet 520 disposed in the groove 511 and the electromagnet 520 formed at regular intervals along the lower circumference of the manhole cover body 20. It may be composed of a metal piece 530, an elastic member 540 that elastically connects the electromagnet 520 and the metal piece 530, and a current supply unit 550 that provides electric current to the electromagnet 520. At this time, a lock groove 11 may be formed around the opening of the water tank 1 to which the manhole cover body 20 is coupled to correspond to the position of the groove 511.

Accordingly, the metal piece 530 may be exposed from the groove portion 511 by the reaction action with the electromagnet 520 and locked in each of the lock grooves 11, for example, when repulsive force is provided. If not, the opening of the water tank 1 manhole cover body 20 may be blocked.

Conversely, the metal piece 530 may be released into each of the lock grooves 11 by being introduced into the groove portion 511 by an attraction action with the electromagnet 520, for example, when an attractive force is provided, and water can be released. The opening of the tank (1) manhole cover body (20) is allowed.

As described above, by having a structure capable of restricting the entry and exit into the water tank, it is possible to prevent the water tank from being contaminated beforehand, which is a safe effect.

Those of ordinary skill in the art to which the present invention pertains will appreciate that the present invention may be implemented in other specific forms without changing its technical spirit or essential features. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the scope of the claims, which will be described later, rather than the detailed description, and all the changed or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. Should be interpreted.

10 Manhole hole
20 Manhole cover body
30 Safety cover net
100 manhole cover driver
200 ladder members
300 oxygen supply
400 harmful gas intake
500 locking parts

Claims (6)

In the water tank access system including a manhole hole provided on the upper surface of the water tank to communicate the inside and the outside of the water tank, and a manhole cover body provided to open and close the manhole hole while sliding in the horizontal direction,
A manhole cover driver that is fastened to one end of the manhole cover body and horizontally moves the manhole cover body to open and close the manhole hole;
A safety cover network built in the manhole cover body and drawn out from the manhole cover body to temporarily close the manhole hole; And
It includes a ladder member for entry into the water tank,
The ladder member,
A first connection part provided on one side of the manhole hole and disposed to be able to move back and forth toward the manhole hole by a first driver;
A second connection portion connected to the first connection portion in a direction intersecting with respect to the movement direction of the first connection portion,
A third connection portion is movably connected to the lower end of the second connection portion by a second driver in the vertical direction,
The first connecting portion is formed in an 'c' shape with one side open, and the first driver for moving forward and backward on the other side,
The second connecting portion is provided in a pair, a plurality of foot stepping portions are installed, and each of the second driver for vertical movement of the third connecting portion is provided therein,
The third connection portion functions as a safety scaffolding part when moving up and down,
At the lower end of the third connection portion, an oxygen supply unit for supplying oxygen to the interior of the water tank and a harmful gas suction unit for sucking harmful gas from the inside of the water tank are provided.
A sensing sensor for detecting harmful gas is further provided at one end of the oxygen supply unit,
The oxygen supply unit is provided with a plurality of nozzles capable of injecting a uniform oxygen gas, the plurality of nozzles are branched from the oxygen supply flow path and a spherical nozzle made of a spherical shape installed on the oxygen supply unit body via a packing member as a medium It is composed of a branch pipe connected to the spherical nozzle, the water tank access system, characterized in that a plurality of injection holes are arranged radially on the outer surface of the spherical nozzle. delete delete delete According to claim 1,
And a first magnet part located at a rear end of the safety cover network and a second magnet part located at an end of the manhole cover body. According to claim 1,
The ladder member includes a coating layer formed of a corrosion-resistant coating solution composition on the outer surface, and the corrosion-resistant coating solution composition is 3-Aminopropyl triethoxysilane (APTS), tetraethoxysilane (TEOS). , Stearic acid and dipropylene glycol (Dipropylene Glycol: DPG) characterized in that it comprises a water tank access system.

Images