KR102203543B1 - Wetting apparatus for asbestos removing work - Google Patents

Abstract

The present invention relates to a wetting apparatus for asbestos removing work which can easily spray a wetting solution to eliminate a burden on a worker who performs asbestos removing work while allowing a single worker to quickly perform the asbestos removing work in a removing work process of asbestos to reduce work costs and quickly perform the asbestos removing work through process simplification. The wetting apparatus for asbestos removing work comprises: a frame having a plurality of moving wheels on a lower portion thereof to be moved along a floor surface in a work space for asbestos removing work; a vertical support vertically erected and installed on an upper portion of the frame; a horizontal support wherein one end thereof is coupled to the upper end of the vertical support, and the other end thereof is horizontally extended; a wetting spray tube coupled to the horizontal support in parallel with the horizontal support; one or more flexible hoses wherein one end thereof is coupled to communicate with the wetting spray tube, and a spray nozzle is provided on the other end thereof; a wetting tank which is fixed and installed on an upper portion of the frame, and stores a wetting solution therein; a wetting pump to pump the wetting solution stored in the wetting tank to the wetting spray tube via a wetting connection tube; and a control unit to control the operation of the wetting pump.

Description

Wetting device for dismantling and removing asbestos {WETTING APPARATUS FOR ASBESTOS REMOVING WORK}

The present invention relates to a wetting device for dismantling and removing asbestos capable of quickly dismantling and removing asbestos while reducing operating costs through simplification of the process.

In general, asbestos is a building material with excellent mechanical strength, non-combustibility, heat insulation, durability, insulation, and heat retention, and has been widely used in various industries such as fireproof, fireproof, thermal insulation, insulation, roofing and electrical insulation. It has been widely used.

However, when asbestos dust is inhaled through the respiratory tract for a long period of time, it is known that asbestos is harmful to the human body, such as causing asbestos lung (pulmonary fibrosis), lung cancer, and malignant mesothelioma. As the regulations on the use of asbestos have been announced in earnest since 2010, foamed asbestos is no longer used in buildings.

However, since a long time ago, asbestos-containing building materials constructed in buildings such as public structures, schools, houses, and buildings have been leaked and scattered over time, so the need to dismantle and remove these asbestos-containing building materials has emerged. have.

For example, most of the asbestos is contained in tex, which is a ceiling material for schools, hospitals, and infrastructure, and the amount of asbestos floating indoors is found to be several tens of times the specified value, so treatment of previously used asbestos-containing ceiling materials is emerging as an urgent problem. However, it is desirable to dismantle the entire asbestos tex immediately, but the cost is astronomical, takes a long time, and the inconvenience is large. Is in progress.

In the existing indoor asbestos dismantling construction, as shown in Fig. 1, the construction section is isolated from the outside of a certain space with a vinyl sheet, and a dressing room, a bath room, and a working clothes changing room are installed outside and at the entrance of the construction section. As shown in Fig. 2, a dustproof suit and a gas mask are worn in the working space, and asbestos dismantling is performed.

At this time, the working space is maintained at negative (-) pressure than the outside through a negative pressure device, supplying fresh air from the outside to the inside, preventing asbestos polluted air from being discharged to the outside, and installing a high-performance filter. It should be used to remove asbestos dust existing in the air of the internal workplace and then discharge the clean air from which the asbestos has been removed to the outside.

When the work space is prepared in this way, the basic principle to be observed in the asbestos dismantling and removal work is to work so that there is no visible scatter of asbestos dust. To this end, the dismantling and removal of all asbestos-containing substances should be performed in a wet manner using water or a moistening liquid. That is, as shown in FIG. 3, the operator has a back pump and sprays water or a moist solution as a whole toward the asbestos tex.

As shown in Fig. 4, the moistening solution is sprayed, and the dismantling and removal of the asbestos tex is performed. As the working time elapses, the sprayed moistening solution is dried. It is inevitable that the asbestos removal work and the spraying work of the wetting liquid can be carried out together.

In order to reduce labor costs, one worker can simultaneously remove asbestos and spray wet liquid, as in Patent No. 10-1023753'Safe dismantling method and system for asbestos-containing building materials with prevention of scattering of asbestos'. A line that can apply moisturizing liquid to the ceiling is sometimes installed. However, such a line installation is not only complicated in the process and increases the operation cost, but also interferes with the installed line when removing asbestos, and it is carried out step by step during the dismantling and removal of asbestos. There is a problem of wasting.

In addition, a method of removing asbestos tex one by one using a booth-type vehicle according to the prior art, and it is difficult to bring the booth-type vehicle into the interior of a narrow work space, as well as a problem that the working time is excessively increased. If so, there is a problem that the worker who removes the asbestos even carries the back pump, and if he works on the worktable, he cannot get a balance and may fall.

Therefore, in the process of dismantling and removing asbestos, one worker can quickly remove asbestos, while making it easy to spray the wet solution so that the worker who does the asbestos removal work is not burdened, thereby reducing the work cost through simplification of the process. There is a need for a wetting device for dismantling and removing asbestos that can achieve rapid dismantling and removal of asbestos while reducing.

It is an object of the present invention conceived from the above point of view, in the process of dismantling and removing asbestos, while one worker quickly removes asbestos, it is easy to spray the wetting liquid so that there is no burden on the worker who removes asbestos. It is to provide a wetting device for dismantling and removing asbestos that can quickly dismantle and remove asbestos while reducing operating costs through simplification of the process.

In order to achieve the above object, the wetting device for asbestos dismantling and removal work according to the present invention includes a frame provided with a plurality of moving wheels at the bottom so as to be movable along the inner floor surface of a work space for asbestos dismantling and removal work. , A vertical support installed vertically upright on the top of the frame, one end coupled to the upper end of the vertical support, the other end horizontally extended horizontal support, a wet spray tube coupled parallel to the horizontal support, and one end One or more flexible hoses coupled to communicate with the wet spray tube and provided with a spray nozzle at the other end, a wet tank fixedly installed on the upper portion of the frame and storing a wet liquid therein, and the inside of the wet tank And a wet pump for pumping the stored wet liquid to the wet spray tube via a wet connection tube, and a control unit for controlling the operation of the wet pump.

In addition, the vertical support is a cylindrical shape, a vertical bar fixedly installed on the upper part of the frame, and a cylindrical shape with an open lower part is inserted and detachably coupled to the upper side of the vertical bar, and It characterized in that it comprises a longitudinal connecting member that one end is rotatably coupled.

In addition, the vertical connection member has a plurality of fixing holes formed through the outer circumferential surface toward the inside in the vertical direction, and the vertical support is screwed into the fixing hole of the vertical connection member, and a tip end of the vertical connection member It characterized in that it further comprises a fixing bolt that presses the outer circumferential surface of the vertical bar inserted into the lower portion of the vertical bar so that the vertical connection member can be moved up and down from the vertical bar.

In addition, it characterized in that it further comprises a level sensor that is installed on the side of the wet tank, detects the level of the wet liquid stored in the wet tank and notifies the lack of wet liquid to the outside through the control unit. .

In addition, the level sensor has a swinging central partition wall formed therein so as to partition the front insertion portion and the rear coupling portion in the shape of a long pipe with a hollow inside, and the insertion portion penetrates the side of the wet tank and the wet tank A contact connection partition wall is formed inside to partition the float housing inserted into the inside of the unit and the fastening part at the front and the terminal part at the rear, and the fastening part is combined with the combining part of the float housing to form a hollow contact driving chamber inside. The terminal portion is inserted to be in close contact with the connector housing protruding outward from the side of the wet tank, the coupling portion of the float housing and the coupling portion of the connector housing, and a grommet closely coupled to the side of the wet tank. And, a terminal exposed to the terminal portion of the connector housing so that the front contact end passes through the contact connection partition wall of the connector housing and faces the contact driving chamber, and the rear exposed end can be electrically connected to the control unit. Wow, in the shape of a long rod, a swing center is installed through the swing center partition wall of the float housing, and the float swing part in the front and the contact swing part in the rear swing up and down in opposite directions based on the swing center. , A float coupled to the float swing part of the swing shaft so as to be located inside the insertion part of the float housing, and to swing the float swing part up and down by the action of buoyancy against the wet liquid flowing into or out of the insertion part. And a contact plate coupled to the contact swing part of the swing shaft and to turn on and off the terminal while contacting or releasing contact with the terminal according to the vertical swing of the contact swing part.

In addition, in the float housing, a through hole is formed through the swing center partition wall forward and backward so that the swing center of the swing shaft passes through, and the through hole of the swing center partition wall includes an enlarged front portion and a rear shaft diameter portion and a center An insertion groove in the radial direction of the through hole is formed, the outer circumferential surface is tightly inserted into the insertion groove of the through hole, and the inner circumferential surface is coupled to be in close contact with the swing center outer circumferential surface of the swing shaft. It characterized in that it further comprises.

In addition, the connector housing is characterized in that a drain hole is formed through the contact connection partition wall so as to drain the wet liquid introduced by leaking into the contact driving chamber to the outside.

In addition, it further comprises a housing cover coupled to the front of the insertion portion so as to close the front of the insertion portion of the float housing, the float housing, a wet liquid inlet hole is formed vertically through the top surface of the insertion portion, the insertion portion It is characterized in that the wet liquid outflow hole is formed vertically through the lower surface.

In addition, the float housing is characterized in that the flow rate flowing through the wet liquid outlet hole is less than the flow rate flowing through the wet liquid inlet hole.

In addition, the wet liquid inlet hole is a long hole formed long along the longitudinal direction of the front and rear of the insertion portion, and the wet liquid outlet hole is characterized in that one or two or more circular holes.

The wetting device for asbestos dismantling and removal work according to the present invention allows one worker to quickly remove asbestos in the process of dismantling and removing asbestos, while the spraying of the moisturizing liquid is easily made so that the worker performing the asbestos removal work is not burdened. It has the effect of enabling rapid dismantling and removal of asbestos while reducing work costs through simplification of the process.

That is, the asbestos dismantling and removal work can be performed while moving with the movement of the worker through the moving wheel provided in the frame, the height of the vertical support can be easily adjusted through the vertical bar and the vertical connecting member, and the horizontal support can be easily adjusted. By rotating or refracting the flexible hose, there is an effect that the operator can easily adjust the spray angle of the wet liquid sprayed from the spray nozzle.

In addition, the level sensor can detect the water level of the wet liquid stored inside the wet tank to quickly notify the shortage situation, and the contact plate is connected to the terminal according to the mechanical operation of the swing shaft and float for the float housing and connector housing. There is an effect of reducing production cost through a simple structure of turning on and off.

In particular, the front of the insert part of the float housing where the float operates is closed with a housing cover, and the wet liquid inlet hole and the wet liquid outlet hole are respectively formed in the upper and lower surfaces of the insertion part to rapidly outflow the wet liquid flowing into the insert part. By preventing the frame from moving rapidly, even if the wet liquid stored in the wet tank flows in any one direction of the wet tank, there is an effect of improving the reliability so that an incorrect judgment such as insufficient wet liquid does not occur.

1 is a perspective view showing a state in which a working space is formed by separating a construction section with a vinyl sheet so as to be blocked from the outside of a certain space during asbestos dismantling and removal,
2 is a front view showing a state in which an operator wears a dustproof suit and a gas mask for asbestos dismantling and removal work,
3 is a perspective view showing a state in which an operator carries a back pump for asbestos dismantling and removal, and sprays a moist liquid toward the asbestos tex,
4 is a perspective view showing a process of dismantling asbestos tex by a worker climbing on a worktable for asbestos dismantling and removal,
FIG. 5 is a side view showing a process in which the sprayed wet liquid is dried with the elapse of working time in the process of dismantling the asbestos tex by the worker of FIG.
6 is a perspective view showing an embodiment of a wetting device for dismantling and removing asbestos according to the present invention,
7 is a perspective view showing a process of adjusting the height of the vertical support in the embodiment of FIG. 6,
FIG. 8 is a perspective view showing a process in which asbestos dismantling and removal is performed by one worker using the embodiment of FIG. 6,
9 is a perspective view showing an embodiment of a level sensor of the embodiment of FIG. 6,
10 is a cross-sectional view taken along line A-A' of the embodiment of FIG. 9,
11 is a cross-sectional view showing a state in which the float is lowered in the embodiment of FIG. 10,
12 is a side cross-sectional view showing a state in which the embodiment of FIG. 9 is installed in the wet tank and the wet liquid is filled in the inside of the wet tank,
13 is a side cross-sectional view showing a reduced wetting liquid in the embodiment of FIG. 12;
14 is a perspective view showing another embodiment of the level sensor of the embodiment of FIG. 6,
FIG. 15 is a side cross-sectional view showing a state in which the embodiment of FIG. 14 is installed in the wet tank so that the wet liquid is reduced in the wet tank, but the wet liquid is stored in a sufficient amount,
16 is a side cross-sectional view showing a state in which the wet liquid stored in the wet tank flows in one direction of the wet tank according to the rapid movement of the frame in the embodiment of FIG. 15;
17 is a side cross-sectional view showing only the level sensor after removing the wet tank from the embodiment of FIG. 16.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the wetting device for dismantling and removing asbestos according to the present invention will be described in detail.

The wetting device for dismantling and removing asbestos according to the present invention includes a frame 100, a vertical support 200, a horizontal support 300, and a wet spray tube as shown in FIGS. 6 to 8 with reference to FIGS. 1 to 5 400), a flexible hose 500, a wet tank 600, a wet pump 700 and a control unit 800, and may further include a level sensor 900.

The frame 100 is provided with a plurality of moving wheels 110 at the lower part so as to be movable along the inner floor surface of the work space for asbestos dismantling and removal as shown in FIGS. 6 to 8. The frame 100 is manufactured in a plate or block shape in the drawing so that the vertical support 200 and the wet tank 600, which will be described later, can be installed thereon. This frame 100 is not a fixed type but a movable type, and a plurality of moving wheels 110 are provided at the lower part, and each of the moving wheels 110 is installed to move the frame 100 back and forth and left and right while rotating 360 degrees. .

The vertical support 200 is installed vertically upright on the top of the frame 100 as shown in FIGS. 6 to 8. This vertical support 200 is a configuration for securing a height such that the injection nozzle 510 of the flexible hose 500 to be described later approaches the ceiling tex. As will be described later, the vertical support 200 may include a vertical bar 210 and a vertical connection member 220, which is a configuration for adjusting the height of the vertical support 200 when the height of the working space is different.

As shown in Figs. 6 to 8, the horizontal support 300 has one end coupled to the upper end of the vertical support 200, and the other end extends horizontally. The horizontal support 300 has a structure in which the lower side is coupled to the upper end of the vertical support 200 in the shape of a'a' shape with a long upper side, and the upper side extends horizontally. This horizontal support is a configuration for supporting the wet spray tube 400 to be described later.

The wet spray tube 400 is coupled in parallel to the transverse support 300 as shown in FIGS. 6 to 8. That is, it is horizontally coupled to the upper side of the'a' shape of the horizontal support 300, and is connected via a wet pump 700 and a wet connection tube 710 to be described later to receive a wet liquid.

The flexible hose 500 is coupled so that one end communicates with the wet spray tube 400 as shown in FIGS. 6 to 8, and a spray nozzle 510 is provided at the other end. Although two of these flexible hoses 500 are shown in the drawing, one, three or four may be provided. The wet liquid supplied to the wet spray tube 400 is sprayed to the spray nozzle 510 through the flexible hose 500, and the flexible hose 500 has a structure capable of refracting as the name suggests, and the operator can use the spray nozzle 510 The spray angle can be easily adjusted.

The wetting tank 600 is fixedly installed on the upper part of the frame 100 as shown in FIGS. 6 to 8, and the wetting liquid is stored therein. The upper portion of the wet tank 600 may be provided with an inlet (not shown) through which the moist liquid can be injected and an inlet cover (not shown) capable of opening and closing the inlet.

The wet pump 700 pumps the wet liquid stored in the wet tank 600 to the wet spray tube 400 via a wet connection tube 710 as shown in FIGS. 6 to 8. That is, the wet liquid stored in the wet tank 600 is pumped by the operation of the wet pump 700 and supplied to the wet spray tube 400 through the wet connection tube 710, and supplied to the wet spray tube 400. The wet liquid is sprayed to the spray nozzle 510 through the flexible hose 500.

The controller 800 controls the operation of the wet pump 700 as shown in Figs. 6 to 8, and is also electrically connected to a level sensor 900 to be described later to reduce the amount of wet liquid stored in the wet tank 600. Depending on the amount, the operation of the wet pump 700 may be turned on or off. Although not shown in the drawing, the control unit 800 may include a power button, a supply and stop button of the wet pump 700, a warning light indicating whether the wet liquid is insufficient, or a speaker for notifying by a warning sound. In addition, the operator may remotely control the controller 800 through a controller (not shown) connected by wire or wirelessly.

On the other hand, since the work space for the asbestos dismantling and removal work may have various heights, it would be good if the vertical support 200 is capable of adjusting the height in a telescopic manner. To this end, the vertical support 200 may include a vertical bar 210, a vertical connection member 220, and a fixing bolt 230.

That is, the vertical bar 210 has a cylindrical shape, and the lower end is fixedly installed on the upper portion of the frame 100. At this time, the vertical connection member 220 is inserted in the upper portion of the vertical bar 210 in a cylindrical shape with an open lower portion and is detachably coupled, and one end of the horizontal support 300 is rotatably coupled to the upper end. Specifically, the vertical connection member 220 has a plurality of fixing holes 221 penetrating through the vertical connection member 220 toward the inside along the vertical length direction, and the fixing bolt 230 is a fixing hole of the vertical connection member 220 ( The vertical connection member 220 can be moved up and down from the vertical bar 210 by pressing the outer circumferential surface of the vertical bar 210 inserted into the lower end of the vertical connection member 220 by being screwed to 221. Fix it so that it can be detached.

As shown in Fig. 8 through the wetting device for asbestos dismantling and removal work according to the present invention having the structure as described above, one worker can quickly remove asbestos, while the wetting liquid is not burdened on the worker performing the asbestos removal work. There is an effect that it is possible to quickly dismantle and remove asbestos while reducing operation costs through simplification of the process by allowing spraying to be easily performed. That is, asbestos dismantling and removal can be performed while moving with the movement of the operator through the moving wheel 110 provided in the frame 100, and the vertical support 200 can be attached to the vertical bar 210 and the vertical connecting member ( 220), the height can be easily adjusted, and the operator can easily adjust the spray angle of the wet liquid sprayed from the spray nozzle 510 by rotating the horizontal support 300 or refracting the flexible hose 500. It works.

At this time, when one worker moves and performs the asbestos removal operation, when the frame 100 is moved through the moving wheel 110 to spray the wet liquid, the shortage of the wet liquid stored in the wet tank 600 is resolved. It is necessary to notify the operator, and in particular, as the frame 100 moves, the wetting liquid stored in the wet tank 600 flows in any one direction to inform an incorrect shortage situation, so it is necessary to prevent this.

To this end, a level sensor 900 may be further included as shown in FIGS. 6 to 8, and the level sensor 900 is installed on the side of the wet tank 600, and inside the wet tank 600. The level of the stored wet liquid is sensed, and a shortage situation of the wet liquid is notified to the outside through the control unit 800.

Specifically, the level sensor 900 is a float housing 910, a connector housing 920, a grommet 930, a pair of terminals 940, a swing shaft 950, as shown in Figs. The float 960 and the contact plate 970 may be included, and a swing center sealing 980 may be further included, and a housing cover 990 may be further included as shown in FIGS. 14 to 17.

Looking at each of the components constituting the level sensor in detail, as shown in Figs. 9 to 11, the components constituting the overall appearance and body are a float housing 910, a connector housing 920, and a grommet 930. , Components operating for detecting the level of the wet liquid are a terminal 940, a swing shaft 950, a float 960, and a contact plate 970.

First, the float housing 910 has a long pipe shape in which the inner right portion is hollow, and a pivoting central partition wall 913 is formed therein to partition the front insertion portion 911 and the rear coupling portion 912, and the insertion portion (911) is inserted into the inside of the wet tank 600 by penetrating through the side surface of the wet tank 600. The float housing 910 may be divided into three portions: an insertion portion 911, a swing central partition wall 913, and a coupling portion 912 in the order of the front and rear.

The insertion part 911 is inserted into the wet tank 600 and has an open front so that the wet liquid flows therein, and a float 960 to be described later is located inside the insertion part by the buoyancy of the wet liquid. It performs the function of a receiving part that accommodates it so that it can move up and down inside the 911. In addition, the swing center partition wall 913 divides the insertion part 911 and the coupling part 912 back and forth, and supports the swing center 951 of the swing shaft 950, which will be described later, to pass through. And, the coupling portion 912 is configured to be coupled to the side of the wet tank 600 while being coupled with the connector housing 920 and the grommet 930 to be described later. Here, the float housing 910 is shown in the shape of a circular pipe in the drawing, but the pipe shape is a tube having a hollow inside, and may be a rectangular, oval, or other polygonal tube in addition to a circular shape.

The connector housing 200 has a contact connection partition wall 923 formed therein to partition the fastening part 921 at the front and the terminal part 922 at the rear, and the fastening part 921 is coupled to the float housing 910 It is combined with the part 912 to form a hollow contact driving chamber 924 therein, and the terminal part 922 protrudes outward from the side of the wet tank 600. The connector housing 920 can also be divided into three parts: a fastening part 921, a contact connection partition 923, and a terminal part 922 in the order of front and rear.

The fastening portion 921 is coupled with the coupling portion 912 of the float housing 910 so that the connector housing 920 is coupled with the float housing 910 along the front and rear longitudinal direction, and a hollow contact driving chamber 924 therein. ) Is formed, and is coupled to the side of the wet tank 600 while being combined with the grommet 930 to be described later. The contact connection partition wall 923 divides the fastening part 921 and the terminal part 922 back and forth while supporting the terminal 940 to be described later to pass through, and the terminal part 922 It is exposed to and functions as a terminal connector to be electrically connected to the vehicle's warning light.

The grommet 930 is inserted so as to be in close contact with the outer circumferential direction of the coupling portion 912 of the float housing 910 and the coupling portion 921 of the connector housing 920, and closely to the side of the wet tank 600 Are combined. The grommet 930 is a waterproof sealing material such as a rubber material and is configured to block the wetting liquid stored inside the wetting tank 600 from leaking to the outside through a coupling portion with the grommet 930.

Here, when the coupling portion 912 of the float housing 910 and the coupling portion 921 of the connector housing 920 are coupled to each other, the diameter of the coupling portion 921 in the drawing is smaller than the diameter of the coupling portion 912. Although inserted, on the contrary, the diameter of the fastening portion 921 may be inserted to a size larger than the diameter of the coupling portion 912. Whatever the coupling structure of the coupling portion 912 and the coupling portion 921 means that the inner circumferential surface of the grommet 930 is inserted so as to be in close contact with the outer circumferential direction of the coupling portion 912 and the coupling portion 921, and the grommet ( The outer circumferential surface of 930 is tightly coupled to the side surface of the wet tank 600, that is, it means that it is tightly coupled to prevent leakage.

As is widely known, a pair of terminals 940 are provided with +/-, and a pair of terminals 940 are arranged parallel to each other, and are electrically connected to a warning light of a vehicle as described above. That is, the terminals 400 are respectively installed so that the front contact end 941 passes through the contact connection partition wall 923 of the connector housing 920 and faces the contact driving chamber 924, and the exposed end ( Each of the 942 is exposed to the terminal portions 922 of the connector housing 920 so that they can be electrically connected to the control unit 800.

In the terminal 940, each exposed end 942 is electrically connected to the control unit, and each contact end 941 is disposed in parallel to each other and is disconnected, thereby turning off. However, according to the operation of the contact plate 970 to be described later, each contact end 941 of the terminal 940 is in contact with the contact plate 970 and is connected to each other, thereby turning on.

The swing shaft 950 has a long rod shape, and the swing center 951 is installed through the swing center partition wall 913 of the float housing 910, and the float swing part in the front relative to the swing center 951 952 and the rear contact swing portion 953 swing up and down in opposite directions to each other. That is, the swing shaft 950 is a seesaw path, and when the front float swing portion 952 rises with respect to the swing center 951, the rear contact swing portion 953 descends, and the front float yo When the eastern part 952 descends, the rear contact swing part 953 rises.

The front float swing portion 952 forming the swing shaft 950 swings up and down while being located inside the insertion portion 911 of the float housing 910, and the contact swing portion 953 at the rear is the contact driving chamber 924 It swings up and down while being located inside of. A float 960 to be described later is coupled to the float swing unit 952 of the swing shaft 950, and a contact plate 970 to be described later is coupled to the contact swing unit 953 to prevent the wet liquid of the float 960. The contact plate 970 is shaken up and down while shaking up and down by buoyancy, and the contact end 941 of the terminal 940 is connected or disconnected from each other according to the vertical shaking of the contact plate 970 to make the contact plate 970 on and off.

The float 960 is coupled to the float swing portion 952 of the swing shaft 950 so as to be located inside the insertion portion 911 of the float housing 910, and flows into or outside the insertion portion 911 The float swing part 952 is shaken up and down by the action of the buoyant force on the wet liquid flowing out to the flow. That is, based on the swing center 951 of the swing shaft 950, the float 960 is coupled to the float swing portion 952 positioned in front of the swing shaft 950, as shown in FIGS. 10 and 12 In a state in which the wet liquid is filled or sufficiently stored in the wet tank 600, the wet liquid flows into the insertion part 911, so that the float 960 rises by the action of buoyancy. Accordingly, the float swing portion 952 of the swing shaft 950 rises together, and the contact swing portion 953 located at the rear of the swing shaft 950 based on the swing center 951 of the swing shaft 950 Goes down.

On the contrary, as shown in Figs. 11 and 13, in a state where the wetting liquid is reduced in the wet tank 600 and is lower than the height of the insertion unit 911, the wetting liquid introduced into the insertion unit 911 is discharged to the outside. Thus, the float 960 is lowered by its own weight without the buoyancy force acting on the wet liquid. Accordingly, the float swing portion 952 of the swing shaft 950 descends together, and the contact swing portion 953 located at the rear of the swing shaft 950 based on the swing center 951 of the swing shaft 950 Will rise.

At this time, the contact plate 970 is coupled to the contact swinging part 953 of the swinging shaft 950, and contacting or releasing the contact with the terminal 940 according to the vertical swing of the contact swinging part 953 (940) are turned on and off each other. That is, as shown in Figs. 10 and 12, when the wet liquid is filled or sufficiently stored in the wet tank 600, the wet liquid flows into the insertion part 911, and the float 960 is caused by the action of buoyancy. Will rise. Accordingly, the float swing portion 952 of the swing shaft 950 rises together, and the contact swing portion 953 located at the rear of the swing shaft 950 based on the swing center 951 of the swing shaft 950 Goes down. A contact plate 970 is coupled to the contact swing part 953, and the contact plate 970 moves away from the terminal 940 according to the descending of the contact swing part 953 and the contact is released so that the terminal 940 They are disconnected from each other and are turned off.

On the contrary, as shown in Figs. 11 and 13, in a state where the wetting liquid is reduced in the wet tank 600 and is lower than the height of the insertion part 911, the wet liquid flowing into the insertion part 911 is leaked to the outside. The float 960 is lowered by its own weight without the buoyancy force acting on the wet liquid. Accordingly, the float swing portion 952 of the swing shaft 950 descends together, and the contact swing portion 953 located at the rear of the swing shaft 950 based on the swing center 951 of the swing shaft 950 Will rise. With the rise of the contact swinging part 953, the contact plate 970 rises, and the contact plate 970 is brought into contact with the terminal 940 so that the terminals 940 are connected to each other, thereby turning on.

In the level sensor 900 as described above, the swing shaft 950 swings up and down due to the buoyancy action of the float 960, and the contact plate 970 and the terminal 940 swing according to the swing of the swing shaft 950. By contacting or releasing the contact, the terminal 940 is connected or disconnected so that the warning lamp of the controller 800 is turned on or a warning sound is output.

At this time, the swing center 951 of the swing shaft 950 is installed through the swing center partition wall 913 of the float housing 910, and the swing center 951 is operated by simple pin joint coupling or ball joint coupling. If this is done, a large amount of the wet liquid introduced into the insertion part 911 may leak into the contact driving chamber 924 through the swing center 951. In order to prevent this, it may further include a rocking center sealing 980 equipped with a leak-preventing function such as a rubber material, and the through hole 913a for installing the rocking center sealing 980 is the rocking center bulkhead 913 ) Can be formed.

That is, as shown in Figs. 10 and 11, the float housing 910 is formed through the swing center partition wall 913 back and forth so that the swing center 951 of the swing shaft 950 passes through, and the swing center The through-hole 913a of the partition wall 913 is formed with a front expansion portion 913aa, a rear shaft diameter portion 913ab, and an insertion groove 913ac in the center radial direction. At this time, the swing center seal 980 is inserted through the expansion portion 913aa of the through hole 913a so that the outer circumferential surface is tightly inserted into the insertion groove 913ac of the through hole 913a, and the inner circumferential surface is the swing It is coupled to be in close contact with the outer peripheral surface of the center of rotation of the shaft 950. That is, the swing center sealing 980 is a sealing material for preventing water leakage, such as a rubber material, to block the wet liquid flowing into the insertion part 911 from leaking into the contact driving chamber 924 through the swing center 951. While being a configuration, the swing shaft 950 is configured to enable a swing operation through elastic deformation of the swing center seal 980 with respect to the swing center 951.

On the other hand, in the level sensor 900, the wet liquid leaking out from the side coupling part of the wet tank 600 is leaking through the grommet 930, and the wet liquid flowing into the insertion part 911 Leakage into the contact driving chamber 924 through the through hole 913a of the swing center partition wall 913 is blocked by the swing center seal 980. However, since there is no such thing as 100% blocking of any leakage prevention structure, it may occur even if the leakage of the wet liquid is very small, and the wet liquid leaking from the swing center seal 980 leaks into the contact drive chamber 924 for a long time. As time elapses, the wet liquid gradually accumulates in the contact drive chamber 924 and becomes full, so that it contacts the contact plate 970 and the terminal 940. Therefore, in order to prevent this, it is necessary to discharge the wet liquid leaking into the contact driving chamber 924 to the outside.

That is, as shown in FIG. 17, the connector housing 920 leaks into the contact driving chamber 924 and drains the wet liquid introduced into the contact connection partition wall 923 to the outside. ) Is formed through. Through this, even if the wet liquid introduced into the insertion part 911 leaks minutely into the contact driving chamber 924 through the swing center sealing 980, the wet liquid leaked into the contact driving chamber 924 is the contact connection partition wall. It can be drained through the drain hole 925 formed through the 923.

On the other hand, as shown in Figs. 12 and 13, the insertion portion 911 of the float housing 910 has a pipe shape with an open front, and while the float 960 is positioned inside the insertion portion 911, the insertion portion ( The float 960 swings up and down due to the action of buoyancy on the wet liquid flowing into the inside through the front of the 911). In this case, since the inflow and outflow of the moist liquid through the front of the insertion part 911 is immediately performed, the float 960 also undergoes a rapid shaking reaction.

Of course, such a quick response is not bad, but it is not necessary to be an immediate response to notify the lack of wetting liquid in the level sensor 900 of the wetting liquid, and even if a shortage situation occurs, a certain amount of remaining amount for the use of the wetting liquid This is because it is stored in the wet tank 600. Rather, such an immediate response speed is not a problem in a situation in which the wet liquid is filled in the wet tank 600, but the frame in a state in which the wet liquid is somewhat reduced inside the wet tank 600 as shown in FIGS. 15 and 16 The wetting liquid stored inside the wetting tank 600, such as the rapid movement of 100, may flow in any one direction of the wetting tank 600, resulting in an incorrect determination such as lack of wetting liquid, resulting in a decrease in reliability.

In order to prevent this, it is necessary to delay the outflow of the wet liquid introduced into the interior of the insertion part 911 submerged in the wet tank 600 as much as possible, which means that the inside of the wet tank 600 according to the sudden movement of the vehicle described above. It is to be followed as late as possible while taking the flow of the wet liquid flowing into the insertion unit 911 as different as possible with respect to the flow of the wet liquid stored in

To this end, as shown in FIGS. 14 to 17, a housing cover 990 coupled to the front of the insertion portion 911 may be further included to close the front of the insertion portion 911 of the float housing 910. At this time, in the float housing 910, a wet liquid inlet hole 911a is formed vertically through the upper surface of the insertion part 911, and a wet liquid outlet hole 911b is vertically formed on the lower surface of the insertion part 911. Is formed through. Accordingly, the housing cover 990 is coupled and closed in front of the insertion portion 911 of the float housing 910, so that the wetting liquid does not flow in through the front of the insertion portion 911.

In this case, of course, in a state in which the humidification liquid is filled in the inside of the wet tank 600, the wet tank through the wet liquid inlet hole 911a and the wet liquid outlet hole 911b respectively formed through the upper and lower surfaces of the insertion part 911. (600) There is no problem in the upward operation due to the buoyancy action of the float 960 as the wetting liquid stored therein flows into the insertion unit 911. In addition, even when a shortage situation occurs due to the reduction of the wet liquid stored in the wet tank 600, the wet liquid flows out from the insertion part 911 through the wet liquid outlet hole 911b, so that the float 960 has a buoyancy effect. As it disappears, there is no problem at all in descending operation due to its own weight.

However, the characteristics of the wet liquid inlet hole 911a and the wet liquid outlet hole 911b are as shown in Figs. 15 to 17, although the wet liquid stored in the wet tank 600 is somewhat reduced from the full water state, the frame 100 ), when the wet liquid stored in the wet tank 600 flows in one direction of the wet tank 600, the wet liquid introduced into the insertion part 911 is the wet liquid outflow hole 911b Because it flows out slowly through, the buoyancy action of the float 960 does not disappear rapidly. Therefore, without being affected by the flow state of the wet liquid stored in the wet tank 600 according to the rapid movement of the frame 100, the wet liquid introduced into the insertion part 911 as shown in FIG. Is slowly discharged through the wet liquid outlet hole 911b, so that the float 960 is still maintained in an elevated state due to the action of buoyancy.

The wet liquid inlet hole 911a and the wet liquid outlet hole 911b as described above determine the amount of wet liquid inflow and outflow into the insertion part 911 according to their size or quantity. That is, the outflow of the wet liquid flowing into the insertion part 911 should be delayed as much as possible. That is, the faster the inflow of the wetting liquid into the insertion part 911 is, the better, and the slower the outflow of the wetting liquid from the insertion part 911 is, the better.

Accordingly, the float housing 910 may have a flow rate that flows through the wet liquid outlet hole 911b less than the flow rate that flows through the wet liquid inflow hole 911a. To this end, as shown in FIG. 14, the wet liquid inlet hole 911a may be a long hole formed long along the longitudinal direction of the insertion part 911, and the wet liquid outlet hole 911b is one or two or more. It can be a circular hole.

As described above, the wetting device for dismantling and removing asbestos according to the present invention can quickly notify a shortage situation by detecting the level of the wet liquid stored in the wet tank 600 through the level sensor 900, and the float The production cost is reduced through a simple structure in which the contact plate 970 turns on and off the terminal 940 according to the mechanical operation of the swing shaft 950 and the float 960 with respect to the housing 910 and connector housing 920 There is an effect that can be made.

In particular, the front of the insertion portion 911 of the float housing 910 on which the float 960 operates is closed with the housing cover 990, and a wet fluid inlet hole 911a and a bottom surface of the insertion portion 911 respectively The wet liquid stored in the wet tank 600 is stored in the wet tank when the frame 100 is rapidly moved by forming through the wet liquid outlet hole 911b to prevent the sudden outflow of the wet liquid flowing into the insertion part 911 Even if it flows in any one direction of (600), there is an effect of improving reliability so that a judgment such as an incorrect lack of wetting liquid does not occur.

Embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those of ordinary skill in the technical field of the present invention can improve and change the technical idea of the present invention in various forms. Therefore, such improvements and changes will fall within the scope of the present invention as long as it is apparent to those of ordinary skill in the art.

100: frame 110: moving wheel
200: vertical support 210: vertical bar
220: vertical connecting member 221: fixing hole
230: fixing bolt
300: horizontal support
400: wet spray tube
500: flexible hose 510: spray nozzle
600: wet tank
700: wet pump 710: wet connection tube
800: control unit
900: level sensor
910: float housing 911: insert
911a: wet liquid inlet hole 911b: wet liquid outlet hole
912: coupling part 913: pivoting central bulkhead
913a: through hole 913aa: expansion part
913ab: Shaft diameter 913ac: Insertion groove
920: connector housing 921: fastening part
922: terminal part 923: contact connection bulkhead
924: contact drive chamber 925: drain hole
930: Grommet
940: terminal
941: contact end 942: exposed end
950: oscillating shaft
951: swing center 952: float swing part
953: contact swing part
960: float
970: contact plate
980: swing center sealing
990: housing cover

Claims (10)

A frame provided with a plurality of moving wheels at the lower part so as to be movable along the inner floor surface of the work space for asbestos dismantling and removal work, a vertical support vertically installed on the upper part of the frame, and one end of the vertical support One or more flexible, coupled to the upper end, with a horizontal support at the other end extending horizontally, a wet spray tube coupled parallel to the horizontal support, and one end connected to communicate with the wet spray tube, and equipped with a spray nozzle at the other end A hose, a humidification tank fixedly installed on the upper part of the frame and storing a humidification liquid therein, and a wet pump for pumping the wetted liquid stored in the wetted tank to the wet spraying tube through a wet connection tube, It includes a control unit for controlling the operation of the wet pump,
A level sensor installed on the side of the wet tank and configured to detect a level of the wet liquid stored in the wet tank to notify the lack of the wet liquid to the outside through the control unit,
The level sensor,
A float housing in which a swinging central partition wall is formed inside to divide the front insertion portion and the rear coupling portion in the shape of a long hollow pipe, and the insertion portion penetrates the side of the wet tank and is inserted into the inside of the wet tank. and,
A contact connection partition wall is formed inside so as to partition the front fastening part and the rear terminal part, the fastening part is combined with the combining part of the float housing to form a hollow contact driving chamber therein, and the terminal part of the wet tank A connector housing protruding outside the side,
A grommet inserted in close contact with the outer circumferential direction of the coupling portion of the float housing and the coupling portion of the connector housing, and closely coupled to a side surface of the wet tank;
A terminal exposed to the terminal portion of the connector housing so that the front contact end passes through the contact connection partition wall of the connector housing and faces the contact driving chamber, and the rear exposed end can be electrically connected to the control unit;
A swinging shaft in which a swing center in the shape of a long rod passes through the swing center partition wall of the float housing, and the float swing part in the front and the contact swing part in the rear swing up and down in opposite directions based on the swing center,
A float coupled to the float swing portion of the swing shaft so as to be located inside the insertion portion of the float housing, and swing the float swing portion up and down by the action of buoyancy against the wet liquid flowing into or out of the insertion portion; ,
Wetting device for asbestos disassembly and removal, characterized in that it comprises a contact plate coupled to the contact swing part of the swing shaft and to turn on and off the terminal while contacting or disengaging the terminal according to the vertical swing of the contact swing part .
The method of claim 1,
The vertical support,
A vertical bar having a cylindrical shape and a lower end fixedly installed on the upper portion of the frame,
Wetting for asbestos disassembly and removal work, characterized in that it includes a vertical connecting member in which one end of the transverse support is rotatably coupled to an upper end of the vertical bar in a cylindrical shape with an open lower portion inserted above the vertical bar. Device.
The method of claim 2,
The vertical connection member,
A plurality of fixing holes are formed through the outer peripheral surface toward the inside along the vertical direction,
The vertical support,
It is screwed into the fixing hole of the vertical connection member, and the front end presses the outer peripheral surface of the vertical bar inserted into the lower part of the vertical connection member, so that the vertical connection member is detachably fixed so that the vertical connection member can be moved up and down from the vertical bar. Asbestos dismantling and wetting device for removing work, characterized in that it further comprises a fixing bolt.
delete delete The method of claim 1,
The float housing,
A through hole is formed through the swing center partition wall forward and backward so that the swing center of the swing shaft is installed through,
The through hole of the swing center bulkhead,
Insertion grooves in the radial direction of the front and rear shaft and radial direction are formed,
Asbestos disassembly and asbestos dismantling, characterized in that it further comprises a rocking center seal which is inserted through the enlarged portion of the through hole so that the outer circumferential surface is tightly inserted into the insertion groove of the through hole, and the inner circumferential surface is in close contact with the rocking center outer circumferential surface of the swing shaft. Wetting device for removal work.
The method of claim 1,
The connector housing,
A wetting device for dismantling and removing asbestos, characterized in that a drain hole is formed through the contact connection partition to drain the wet liquid introduced by leaking into the contact driving chamber to the outside.
The method of claim 1,
Further comprising a housing cover coupled to the front of the insertion portion to close the front of the insertion portion of the float housing,
The float housing,
Wetting device for dismantling and removing asbestos, characterized in that a wet liquid inlet hole is formed vertically through the upper surface of the insertion part, and a wet liquid outlet hole is vertically penetrated in the lower surface of the insertion part.
The method of claim 8,
The float housing,
Wetting device for asbestos disassembly and removal, characterized in that the flow rate flowing through the wet liquid outlet hole is less than the flow rate flowing through the wet liquid inlet hole.
The method of claim 9,
The wet liquid inlet hole,
It is a long hole formed long along the longitudinal direction of the front and rear of the insertion part,
The wet liquid outflow hole,
Wetting device for dismantling and removing asbestos, characterized in that one or two or more circular holes.

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