KR20200094310A - Main manhole for vacuum lorry - Google Patents

Abstract

The present invention relates to a main manhole for a vacuum lorry which prevents the contents in a tank of a vacuum lorry from overflowing and, more specifically, to a main manhole for a vacuum lorry which can stably and sturdily open and close a corresponding open hole in accordance with the level of the contents filled in a tank to block the flow of the contents in the tank to a vacuum pump, and prevent an operation interruption and malfunction of an opening/closing module by a blockage by the contents or freezing of the contents by additionally including a cleaning water supply means capable of cleaning components of the opening/closing module at high pressure. According to the present invention, the main manhole for a vacuum lorry comprises: a cover coupled to and mounted on a main manhole installation plate of a tank, and provided with an open hole formed on a middle portion thereof; a middle case coupled to and mounted on an upper side of the cover, and provided with an open hole formed on a middle portion thereof; an upper case coupled to and mounted on an upper side of the middle case, and provided with an open hole being formed on a lower side thereof and communicating with the open hole of the middle case, and a connection flange unit being formed on one side thereof and allowing a connection pipe to be connected thereto; an opening/closing module to open and close the open hole of the middle case in accordance with the level of the contents filled in the tank; and a cleaning water supply means to supply and spray cleaning water for cleaning the opening/closing module.

Description

MAIN MANHOLE FOR VACUUM LORRY

The present invention relates to a main manhole of a thrusting lory that prevents overflowing of the contents inside the tank of the thrusting lorry, and in particular, by configuring the opening hole to be stably and firmly opened and closed according to the level of the contents filled in the tank, Operation of the opening/closing module by clogging by the contents or freezing of the contents by additionally configuring the washing water input means capable of fundamentally blocking the flow of the contents inside the tank into the vacuum pump and washing the components of the opening/closing module at high pressure It is about the main manhole of Verry Lowry that can prevent stoppage and malfunction in advance.

A large amount of wastewater is produced every day in daily life and in the industrial field.

The waste water is collected in a certain space, and is periodically transported to a treatment facility in a special vehicle specially manufactured for waste water treatment, that is, Vacuum Lorry.

Vacuum Lorry, which corresponds to the special vehicle, is generally equipped with a tank and a vacuum pump to use a pressure difference to inhale the contents corresponding to wastewater and store it in a tank. Then, after transferring the contents corresponding to the waste water stored in the tank to the treatment facility, the tank is opened to pressurize the internal air pressure, thereby discharging the waste water from the tank into the treatment facility.

However, in the prior art, when the amount of contents corresponding to wastewater and wastewater stored in the tank increases and becomes close to full water, moisture, wastewater and wastewater are mixed and flow in the air sucked toward the vacuum pump to cause a failure in the vacuum pump. .

And, in the prior art, the wastewater flows inside the vacuum pump connecting pipe, contaminating the inside of the connecting pipe, and hindering the flow of air.

In addition, in the related art, there is a problem in that it is difficult to prevent the failure of the vacuum pump because it is impossible to stop the operation of the vacuum pump in time because the operator cannot know the overflow of wastewater.

In order to solve this problem, Korean Patent Registration No. 10-1841621 (hereinafter referred to as "prior technical literature") installs a waste opening/closing unit in a waste storage tank so that the floating member opens and closes the doorway, thereby excreting waste water and wastewater. We have proposed a valve device for a waste collection vehicle that can prevent leakage.

The valve device for such a waste collection vehicle is generally referred to as a main manhole of a thrusting lorry, and the throttling lorry's main manhole is firmly mounted on a main manhole installation plate formed on an upper side of the tank. It is natural that the main manhole installation plate of the tank is opened to be mounted with the main manhole of the thrusting rod inserted into the tank.

Such a prior art document proposes a main manhole of a thrusting lorry, but since the floating member is configured to prevent the contents of the inside of the tank from overflowing by directly interrupting the intake, there is a problem of poor control performance and efficiency.

In addition, the prior art document includes a defoaming spray member capable of injecting a fluid, but this is adopted and applied only to remove bubbles generated in the tank, and the floating member and the guide member and the space between them. It was not adopted and applied to remove the contents remaining or adhering to the space. As a result, the prior art document does not have a configuration capable of washing the components of the opening/closing module, and thus has the disadvantage of preventing the operation of the opening/closing module from being stopped or malfunctioned by freezing or freezing of contents.

Republic of Korea Registered Patent No. 10-1841621 (Announcement date: May 04, 2018, Name of invention: Valve device for filthy vehicles)

The present invention was devised to solve the problems of the prior art as described above, and by configuring the opening hole to be stably and firmly opened and closed according to the level of the contents filled in the tank, the contents inside the tank are vacuum pumps. The aim is to provide the main manhole of Verry Laurie, which allows the original flow of the furnace to be blocked.

In addition, according to the present invention, by additionally configuring the washing water input means capable of high-pressure washing the components of the opening and closing module capable of controlling the opening hole, the operation of the opening and closing module due to clogging by contents or freezing of the contents is prevented. The aim is to provide the main manhole of Verry Laurie that can be prevented.

The configuration means for forming the main manhole of the thrusting lorry, which is the present invention proposed to solve the above problems, is coupled to the main manhole installation plate of the tank in the throttling lorry's main manhole, and an open hole is formed in the center portion Lid, coupled to the upper side of the lid, the intermediate case in which an opening hole is formed in the middle portion, and coupled to the upper side of the intermediate case, an opening hole communicating with the opening hole of the intermediate case is formed on the lower side, and a vacuum pump is provided on one side. The upper case where the connecting flange of the connecting pipe is formed, the opening/closing module that opens and closes the opening hole of the intermediate case according to the level of the contents filled in the tank, and the washing water that sprays and sprays washing water for washing the opening/closing module Characterized in that it comprises an input means.

Here, the opening and closing module is a ball barrel coupled to the lower side of the lid to communicate with the opening hole of the lid, the floating ball disposed inside the ball barrel and floating by the contents flowing into the ball barrel, the floating ball The lower end is connected and extended to the upper side, the opening and closing disk is coupled to the shaft and fixedly arranged in the opening hole between the intermediate case and the upper case, an open hole intermittently formed by the opening and closing disk is formed in the middle part Characterized in that it comprises a sealed guider.

Here, the washing water input means is formed to pass through the opening hole of the lid, the at least one input and the input is formed in the intermediate case so that the washing water is injected between the inner surface of the ball and the floating ball It is characterized in that it is connected to the upper side of the input and output valves to guide the introduction of the washing water and the closing opening and closing valve to interrupt the guidance of the washing water.

According to the main manhole of Bourne Lowry, the inventor of the present invention having the above-described problems and solutions, since the opening hole is configured to be stably and firmly opened and closed according to the level of the contents filled in the tank, the contents inside the tank The advantage is that it can block the flow of the vacuum pump by default.

In addition, according to the present invention, since the additional configuration of the washing water input means capable of high-pressure washing the components of the opening and closing module capable of interrupting the opening hole, the operation of the opening and closing module is stopped due to clogging by the contents or freezing of the contents. The effect that can be prevented in advance.

1 is a perspective view of a main manhole of a thrusting loli according to an embodiment of the present invention.
2 is a cut-away perspective view of a main manhole of a thrusting lorry according to an embodiment of the present invention.
3 is an exploded perspective view of a main manhole of a thrusting lorry according to an embodiment of the present invention.
Figure 4 is a schematic diagram of the configuration of the washing water input means constituting the main manhole of the holding rod according to another embodiment of the present invention.
Figure 5 is a schematic diagram of the configuration of the washing water input means constituting the main manhole of the holding rod according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the main manhole (Vacuum Lorry) of the present invention having the above problems, solving means and effects will be described in detail.

The present invention can be applied to various transformations and can have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail in the detailed description. Effects 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 drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same or corresponding components will be given the same reference numerals when describing with reference to the drawings, and redundant description thereof will be omitted. .

In the examples below, terms such as include or have are meant to mean that features or components described in the specification exist, and do not preclude the possibility of adding one or more other features or components.

In the drawings, the size of components may be exaggerated or reduced for convenience of description. For example, since the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, the present invention is not necessarily limited to what is shown.

1 is a perspective view of a main manhole of a thrusting lorry according to an embodiment of the present invention, FIG. 2 is a cutaway perspective view of a main manhole of a thrusting lorry according to an embodiment of the present invention, and FIG. 3 is a thrusting according to an embodiment of the present invention An exploded perspective view of Laurie's main manhole.

1 to 3, the main manhole 100 of the thrusting loli according to an embodiment of the present invention includes a lid 10, an intermediate case 20, an upper case 30, an opening/closing module 50, and It comprises a washing water input means (70).

The lid 10 is coupled to the main manhole installation plate of the thrust lorry tank, and an open hole is formed in the center portion. The main manhole installation plate of the tank is a portion to which the main manhole of the present invention rotten lorry is mounted and coupled, and is generally formed at the upper front portion of the tank. The main manhole installation plate of the tank is, of course, an open hole is formed so that the main manhole of the present invention, the lorry is inserted into the tank.

The lid 10, which is attached to the main manhole installation plate of the tank, is not simply a disc shape in which an opening hole is formed in the center, but an opening protrusion 11 extending upwardly in a state where the center portion is opened. . That is, the opening protrusion 11 of the lid 10 preferably has a cylindrical shape in which the upper and lower parts are opened as a whole. It is natural that the opening hole of the lid 10, that is, the opening protrusion 11 communicates with the opening hole formed in the main manhole installation plate of the tank.

The intermediate case 20 is seated and coupled to the upper portion of the tank 10. That is, the intermediate case 20 is coupled to the upper side of the lid 10, an open hole is formed in the center portion. Specifically, the intermediate case 20 is mounted and coupled in a state seated on the upper side of the open protrusion 11 of the lid 10, and an opening hole is formed in the upper middle portion to communicate with the open protrusion 11.

The intermediate case 20 is not simply a disc shape with a center portion pierced, but as illustrated in FIGS. 1 to 3, a horizontal portion 21 corresponding to a portion seated on the open protrusion 11 and It comprises a vertical portion (23) protruding upward from the inside of the horizontal portion (21) to form an opening hole, and a seating portion (25) extending from the top of the vertical portion (23) to the inside of the opening hole.

The horizontal portion 21 of the intermediate case 20 is a portion that is seated and coupled to the upper side of the open protrusion 11. Meanwhile, the horizontal portion 21 corresponds to a portion where the input portion 71 constituting the washing water input means 70 is formed, and the input portion 71 must be formed to communicate with the open protrusion 11 Since, the horizontal portion 21 is formed to extend inward.

The vertical portion 23 is formed to protrude in an upward direction from the inner end of the horizontal portion (21). An inner space may be further secured in the vertical direction by the vertical portion 23, thereby securing a vertical operation range of the opening/closing module 50 to enable smooth operation.

The seating portion 25 is formed to extend from the top of the vertical portion 23 into the opening hole. That is, the seating portion 25 is formed to extend from the upper end of the vertical portion 23 so that an open hole can be formed in the middle portion. The seating portion 25 is sealed in the opening/closing module 50, which is applied so that the opening hole of the intermediate case 20, specifically, the opening hole formed by the seating portion 25 can be stably and firmly controlled. It corresponds to the portion where the guider 56 is seated. This will be described later.

The upper case 30 is seated and coupled to the upper side of the intermediate case 20 configured as described above. The upper case 30 is formed to communicate with the opening hole of the intermediate case 20 and has a connection flange portion 31 that can connect a connection pipe of a vacuum pump for inhaling air in the tank or injecting air into the tank. To be equipped.

That is, the upper case 30 is coupled to the upper side of the intermediate case 20, the lower side is formed with an opening hole of the intermediate case 20, specifically an opening hole formed by the seating portion 25, On one side, a connection flange portion 31 to which a connection pipe of the vacuum pump is connected is formed.

The upper case 30 is formed with an open hole through the opening hole of the intermediate case 20 on the lower side, and is seated and coupled to the upper side of the intermediate case 20. Specifically, the lower end of the upper case 30 forming the opening hole is seated and supported on the upper end of the vertical portion 23 of the intermediate case 20, the sealed guider seated on the seating portion 25 (56), specifically, the sealing ring portion 57 is coupled to be fixed in close contact. As a result, the hermetic guider 56 can be securely fixed to the seating portion 25 by the upper case 30.

The opening and closing module 50 performs an operation of opening and closing the opening hole of the intermediate case 20, specifically, the opening hole formed by the seating portion 25 according to the water level in the tank. That is, the opening/closing module 50 performs an operation of opening and closing the opening hole of the intermediate case 20, specifically, the opening hole formed by the seating portion 25 according to the level of the contents filled into the tank. Perform.

The opening and closing module 50 performs an operation of opening and closing the opening hole of the intermediate case 20, specifically, the opening hole formed by the seating portion 25 according to the level of the contents filled into the tank. If possible, various configurations can be adopted and applied.

The most preferred opening/closing module adopted and applied in the present invention is a ball barrel 51 coupled to the lower side of the lid 10 to communicate with an opening hole of the lid 10, as shown in FIGS. A floating ball (52) disposed inside the ball barrel (51) and floating by contents flowing into the ball barrel (51), a shaft (53) having a lower end connected to the floating ball (52) and extending upwardly ), the opening and closing disk 55 coupled to the shaft 53 and the opening hole between the intermediate case 20 and the upper case 30, specifically, fixedly arranged in the seating portion 25, in the middle part It comprises a sealed guider 56 is formed an open hole intermittent by the opening and closing disk 55.

The ball barrel 51 is coupled to the lower side of the lid 10, but the lower portion is formed narrow, like a funnel shape, so that the contents in the tank are not introduced and the floating ball 52 does not deviate downward, and the upper portion is formed wide The air is discharged to the opening hole of the lid 10, specifically, the opening protrusion 11.

The floating ball 52 is inserted into the ball container 51 and seated under the inner portion of the ball container 51 when the vacuum pump is stopped. When the vacuum pump is operated, the storage amount of water and contents of waste water, waste water, etc. When the water level increases due to this increase, it is formed to rise simultaneously with the water level by buoyancy.

When the air is sucked by the vacuum pump, the floating ball 52 floats at a predetermined interval on the inner surface of the ball barrel 51 to allow air to flow. This is based on the principle that only a small gap between the funnel and the table tennis ball is created when the table tennis ball is put into the funnel and blown by mouth from the bottom, and only the air flows without great movement of the table tennis ball. Therefore, the floating ball 52 is preferably formed in a spherical shape.

The shaft 53 is vertically provided on the upper portion of the floating ball 52, and the floating ball 52 is raised by the floating ball 52 when the floating ball 52 rises due to an increase in the storage amount of moisture, waste water, and other contents in the tank. It is pressurized and moves upward. The shaft 53 is coupled to move upward only when the floating ball 52 rises due to the water level in the tank.

The opening/closing disk 55 is formed on the shaft 53 and according to the vertical movement of the shaft 53, the opening hole of the intermediate case 20, specifically, the opening hole formed by the seating portion 25, more More specifically, opening and closing the opening hole formed in the sealed guider 56.

The opening/closing disk 55 is made of a rubber material to be in close contact with the sealing guider 56 when the opening hole formed in the seating portion 25, specifically the opening hole of the sealing guider 56, is closed. It is preferable that the packing member is provided on the upper surface.

When the content level in the tank is low, the opening/closing disk 55 opens the opening hole of the sealed guider 56 and then increases the water level so that the floating ball 52 rises and the shaft 53 moves upward. If this is done, it is in close contact with the hermetic guider 56 to close the opening hole to block the flow of air.

At the same time, the opening/closing disk 55 not only blocks the flow of air, but also the contents of moisture, waste, and wastewater stored in the tank through the opening hole of the sealed guider 56 leaks to the vacuum pump through the connecting pipe. This prevents the vacuum pump from failing.

The sealed guider 56 is fixedly arranged in an opening hole between the intermediate case 20 and the upper case 30, specifically the seating portion 25 of the intermediate case 20, as described above, in the middle An opening hole intermittently interrupted by the opening/closing disk 55 is formed in the portion. The sealing guider 56 may be fixed in close contact with the upper case 30 while being seated on the seating portion 25 as described above.

The hermetic guider 56 should have a structure that allows air to flow between the intermediate case 20 and the upper case 30, and at the same time, the opening and closing disks 55 are in close contact with each other to close the opening hole. To this end, the sealing guider 56 includes a sealing ring portion 57. Since the sealing ring portion 57 has a circular ring or donut shape, it can be seated on the seating portion 25 and an open hole is formed inside.

When the water level inside the tank rises, the floating ball 52 rises, and at the same time, the shaft 53 rises, and consequently, the opening/closing disc 55 seals the sealing ring portion 57 of the sealing guider 56. In close contact with the opening hole of the sealed guider 56 may be closed. Conversely, when the water level inside the tank falls, the floating ball 52 descends, and at the same time, the shaft 53 descends and consequently the opening/closing disc 55 seals the sealing ring portion 57 of the sealing guider 56. Departing from the opening hole of the hermetic guider 56 may be opened.

In accordance with such an operation, the shaft 53 performs an operation of raising or lowering. In the present invention, a guy capable of guiding the vertical movement of the shaft 53 to enable stable operation of the opening/closing module 50 A ding portion 58 is provided on the sealed guider 56. That is, the sealed guider 56 according to the present invention includes a guiding portion 58 for guiding the vertical movement of the shaft 53.

The guiding portion 58 is connected to the sealing ring portion 57 through at least two frames. The sealing ring part 57 and the guiding part 58 are necessarily connected by a frame so that air flows between the inner space of the intermediate case 20 and the inner space of the upper case 30.

The opening and closing holes of the hermetic guider 56 can be stably and firmly controlled according to the water level inside the tank by the opening/closing module 50 configured as described above. As a result, it is possible to prevent the contents inside the tank from overflowing and moving to the vacuum tank along the connecting pipe.

On the other hand, the main manhole of the thrusting lorry according to the present invention is configured to include washing water input means 70 to wash the components of the opening and closing module 50. That is, the washing water input means 70 according to the present invention is disposed in the intermediate case 20 to inject and spray the washing water for washing the opening and closing module 50.

Contents, such as manure and waste water, remain on the inner surface of the ball barrel 51 and the floating ball 52 constituting the above-described opening and closing module 50. As a result, the inner surface of the ball barrel 51 and the floating ball 52 become dirty, especially in winter, the remaining contents and moisture are entangled and frozen, and become fixed over time, and in some cases, the ball The inner surface of the barrel 51 and the outer surface of the floating ball 52 are connected by frozen contents.

As a result, the floating ball 52 maintains a fixed state without rising even if the water level inside the tank rises, and the opening/closing module 50 may not operate normally. In this case, the contents inside the tank overflow and may be transferred to the vacuum pump through the connecting pipe, resulting in an irreversible situation.

In order to prevent such a problem, the present invention is provided with a washing water input means 70 that allows the washing water to be sprayed at a high pressure to the inner surface of the ball barrel 51, the floating ball 52 and the space between them. do.

1 to 3, the washing water input means 70 adopted and applied in the present invention is formed to communicate with the opening hole of the lid 10, and the washing water to be injected is of the ball barrel 51. It is connected to the upper side of at least one input unit 71 and the input unit 71 formed in the intermediate case 20 so as to be injected between the inner surface and the floating ball 52 to guide the input of washing water and to guide the washing water. It is configured to include a closing opening and closing pipe 72 to which the closing opening and closing valve 73 is intermittent.

The meaning between the inner surface of the ball cylinder 51 and the floating ball 52 is a concept including the inner surface of the ball cylinder 51, the outer surface of the floating ball 52, and a space therebetween. Therefore, the input portion 71 is formed in the horizontal portion 21 of the intermediate case 20 so as to communicate with the opening hole of the lid 10, specifically, the inner space of the opening protrusion 11, at high pressure It is formed so that the injected washing water can be injected between the inner surface of the ball barrel (51) and the floating ball (52).

After connecting the washing water supply pipe (not shown) directly to the input section 71, by operating the washing water supply pump, the washing water is injected into the input section 71 to introduce the inner surface of the ball barrel 51 and the floating ball ( 52) Although it is possible to spray the washing water at a high pressure, the upper side of the input part 71 must be blocked with a closing member (not shown) in order to prevent the contents from overflowing through the input part 71 after the washing process is finished. You have to go through the process. In addition, in order to clean, it is necessary to perform a process in which the closing member must be separated from the input part 71.

This process must always be performed before and after washing, which causes a problem of unnecessary time, effort, and cost, and may also cause a problem in that the contents flow out when the closure member is worn or damaged.

In order to prevent such a problem, the washing water input means 70 according to the present invention is always connected to the upper side of the input section 71 to guide the washing water supplied from the outside and at the same time to guide the closing opening and closing so that the guidance can be interrupted It is preferable to further include 72 and the input/close valve 73.

The input opening/closing tube 72 is fixedly connected to the upper portion of the input unit 71 to guide the input of washing water supplied. That is, the input opening and closing pipe 72 is fixedly connected to the lower side to communicate with the upper side of the input portion 71, the upper side is connected to the washing water supply pipe (not shown), according to the operation of the washing water supply pump (not shown) The washing water supplied through the washing water supply pipe is guided to the input unit 71.

On the other hand, to control the guidance of the washing water to be supplied to the supply, and furthermore, to prevent the contents of waste water, such as waste water, to be discharged to the outside through the input section 71, the input opening and closing tube 72, the closing opening and closing pipe The inlet opening/closing valve 73 is coupled to 72. The closing opening and closing valve 73 is arranged to be coupled to regulate the internal flow of the closing opening and closing tube 72.

According to the present invention described above, since the additional configuration of the washing water input means 70 capable of high-pressure washing the components of the opening and closing module 50 capable of controlling the opening hole, clogging by the contents or freezing of the contents An effect of preventing operation stoppage and malfunction of the opening/closing module can be prevented.

The washing water input means 70 allows high-pressure injection of the washing water injected at high pressure between the inner surface of the ball barrel 51 and the floating ball 52. By the way, as described above, the input section 71 may be composed of at least one, the input section 71 is a plurality (for example, a predetermined distance) along the horizontal portion 21 of the intermediate case 20 When spaced apart and 6 or more) are formed, the washing water for the whole between the inner surface of the ball barrel 51 and the floating ball 52 (all inner surfaces of the ball barrel and the front surface of the ball barrel and all spaces therebetween) Although it can be injected, if the input portion 71 is formed in a small number (for example, two as illustrated in FIGS. 1 to 3), the inner surface of the ball barrel 51 and the floating ball ( 52) Since the washing water cannot be sprayed over the entire space, the washing efficiency may be reduced, and consequently, the lifting and lowering operation of the floating ball 52 may still be impossible due to winter freezing.

To this end, it is preferable that the washing water input means 70 further includes additional components capable of improving washing efficiency.

Figure 4 shows a schematic view of the configuration of the washing water input means 70 constituting the main manhole 100 of the holding rod according to another embodiment of the present invention. All other configurations are the same, and since only the washing water input means 70 has a slightly different configuration, only the components of the washing water input means 70 different from the configuration of the above-described embodiment will be described.

As illustrated in FIG. 4, the washing water input means 70 preferably further includes a rotating nozzle 75 coupled to the lower side of the input section 71. The rotating nozzle 75 is rotated by the washing water injected at a high pressure through the input unit 71, and as it rotates, the washing water is sprayed at a high pressure in a plurality of directions, for example, a radial direction.

As described above, even if the washing water input means 70 further comprising the rotary nozzle 75 adopts and applies a small number of input sections 71, the washing water is injected at a high pressure in the radial direction through the rotary nozzle 75. Since it can be, it is possible to spray the washing water to the entire inner surface of the ball barrel 51 and the floating ball 52, thereby improving the washing efficiency.

On the other hand, in order to further improve the efficiency of spraying the washing water to the entire surface between the inner surface of the ball barrel 51 and the floating ball 52, in the present invention, the washing water input means 70 shown in FIG. Adoption is applicable.

5 shows a schematic diagram of the configuration of the washing water input means 70 constituting the main manhole 100 of the thrusting lorry according to another embodiment of the present invention. All other configurations are the same, and since only the washing water input means 70 has a slightly different configuration, only the components of the washing water input means 70 different from the configuration of the above-described embodiment will be described.

As shown in Figure 5, the washing water input means 70 is coupled to communicate with the lower side of the input unit 71, a circular shape disposed adjacent to the inner surface of the open protrusion 11 of the lid 10 It is preferable to further include a ring-shaped distribution pipe 76. An injection hole (for distributing high pressure through the distribution pipe 76) to the lower side of the distribution pipe 76 to be sprayed between the inner surface of the ball barrel 51 and the floating ball 52 77) are formed adjacent to each other at predetermined intervals.

The distribution pipe 76 allows the washing water to be injected at high pressure through the input portion 71 to be distributed and supplied along the inner surface of the open protrusion 11 of the lid 10, and at the same time, the injection hole 77 Through this, the washing water can be injected at high pressure between the inner surface of the ball barrel 51 and the floating ball 52.

As described above, even if the washing water input means 70 further comprising the distribution pipe 76 and the injection hole 77 adopts and applies a small number of input portions 71, the distribution pipe 76 and the injection hole ( Since the washing water can be sprayed at high pressure in most spaces and directions between the inner surface of the ball barrel 51 and the floating ball 52 through 77), the inner surface of the ball barrel 51 and the floating ball Washing water can be sprayed in most of the spaces and directions between (52), thereby further improving the washing efficiency.

On the other hand, the washing water input means 70 according to the present invention, in the configuration of Figure 5, may be configured to further include a rotating nozzle 75 is inserted and coupled to the injection hole (77).

That is, it is preferable that the washing water input means 70 further includes a rotating nozzle 75 coupled to the injection hole 77 shown in FIG. 5. The rotating nozzle 75 is rotated by the washing water sprayed at a high pressure through the injection hole 77, and as it rotates, the washing water can be sprayed at a high pressure in a plurality of directions, for example, a radial direction. .

As described above, when the rotary nozzle 75 further connected to the injection hole 77 is further included, high-pressure injection of washing water in the radial direction is possible through the rotary nozzle 75 connected to all the injection holes 77. Therefore, it is possible to spray the washing water without any gap between the inner surface of the ball barrel 51 and the floating ball 52, thereby further improving the washing efficiency.

Although the embodiments according to the present invention have been described above, they are merely exemplary, and those skilled in the art will understand that various modifications and equivalent ranges of the embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be defined by the following claims.

10: lid 11: opening protrusion
20: middle case 21: horizontal portion
23: vertical portion 25: seating portion
30: upper case 31: connecting flange
50: opening and closing module 51: ball barrel
52: floating ball 53: shaft
55: opening and closing disc 56: sealed guider
57: sealing ring 58: guiding portion
70: washing water input means 71: input
72: closing opening and closing pipe 73: closing opening and closing valve
75: rotating nozzle 76: distribution pipe
77: injection hole 100: the main manhole of Verry Laurie

Claims (3)

In the main manhole of Verry Laurie,
The lid is coupled to the main manhole installation plate of the tank, an opening is formed in the center portion;
Is coupled to the upper side of the lid, an intermediate case in which an opening hole is formed in the middle portion;
The upper case is coupled to the upper side of the intermediate case, an open hole through the opening hole of the intermediate case is formed on the lower side, and a connection flange portion to which a connection pipe of the vacuum pump is connected is formed on one side;
An opening and closing module that opens and closes the opening hole of the intermediate case according to the water level of the contents filled in the tank;
The main manhole of the thrusting lorry, characterized in that it comprises a washing water input means for injecting and spraying the washing water for cleaning the opening and closing module.
The method according to claim 1,
The opening/closing module has a ball barrel coupled to a lower side of the lid to communicate with an opening hole of the lid, a floating ball disposed inside the ball barrel and floating by contents flowing into the ball barrel, and a lower end of the floating ball The shaft is connected and extended upwardly, the opening and closing disk coupled to the shaft and fixedly arranged in the opening hole between the intermediate case and the upper case, the sealed guider in which an opening hole intermittently interrupted by the opening and closing disk is formed in the center portion Main manhole of the thrusting Laurie, characterized in that it comprises a.
The method according to claim 2,
The washing water input means is formed to communicate with the opening hole of the lid, but at least one input part and an upper part of the input part formed on the intermediate case so that the input wash water is injected between the inner surface of the ball container and the floating ball. The main manhole of a thrusting lorry, characterized in that it comprises a closing opening and closing pipe which is connected to guide the closing of the washing water and the closing opening and closing valve to interrupt the guidance of the washing water.

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