KR102033738B1 - Apparatus for cleaning water pipe - Google Patents

Abstract

The present invention relates to a water pipe cleaning apparatus including a main tube, a guide tube, a ring tube and a spray nozzle. The main tube is provided from the outside to the inside of a water pipe, and high-pressure water is injected into the main tube. A plurality of guide tubes are installed to have one end connected to the front end of the main tube and extended in a radial direction, and lead the high-pressure water injected into the main tube to flow in a radial direction. A ring tube is connected to the other end of the guide tube and installed in a circumferential direction of the main tube, and leads the high-pressure water to flow to the guide tubes in a circumferential direction. A plurality of spray nozzles are installed in a longitudinal direction of the ring tube at a predetermined distance apart, and spray the high-pressure water in a direction between a radial direction of the ring tube and a backward direction of the main tube. The high-pressure water sprayed by the spray nozzles removes precipitates on the inner edge surface of a water pipe, and generates thrust to enable the main tube to move forward in a longitudinal direction of the water pipe.

Description

Water pipe washer {APPARATUS FOR CLEANING WATER PIPE}

The present invention relates to a water pipe washing apparatus, and more particularly, to clean the water pipe can be effectively cleaned in a state filled with water in the water pipe for the entire length of the water pipe between the valve and the valve to be cleaned and to reduce the washing process time Relates to a device.

Typically, pipelines such as various large diameter pipes, water pipes, or gas pipes start to oxidize after 2 to 3 years and to corrode after about 10 years.

In particular, water pipes, such as the scale and foreign matter accumulates in the pipe over time, the function of the pipe is degraded, and problems such as the generation of rust. Therefore, water pipes are being repaired for a certain period of time, and such repair methods include pipe replacement, A / S (Air Sand) method, and air injection cleaning method.

In the case of plumbing replacement, building breakage, noise, and short period of time are long, and construction cost is much used. Currently, A / S method and air injection cleaning method are used.

The A / S method disassembles valves and flanges without destroying the building, and the inside of the pipe is dried with high pressure air, and the inside of the pipe is cleaned by mixing high-pressure air and abrasive stone (silica sand). Coating inside the pipe to extend the life of the pipe semi-permanently. However, this A / S method has a concern that the base material of the pipe is damaged (it may be cracked or broken depending on the state of the old pipe), difficult to apply to curved pipes, etc., and can be applied only to steel pipes.

1 is an exemplary view showing a conventional air injection cleaning method.

As shown in FIG. 1, the conventional air injection cleaning method closes the first valve 11 at the rear end of the existing pipe line 10 and adjusts the second valve 12 at the front end of the pipe line 10 so as to clean the air. In a state in which the flow rate of water 20 is supplied, compressed air 40 for cleaning is injected using the compressed air supply device 30. Then, the injected compressed air moves to the rear of the pipeline 10 to clean the inside of the pipeline 10, and the water to be washed is discharged through the hydrant 13 at the rear end of the pipeline 10.

Compressed air used in the air injection cleaning method is operated under the operating pressure (Static Operating Pressure) of the existing pipe has the advantage of low probability of pipe breakage.

However, in the conventional air injection washing method, since the compressed air 40 introduced from the front end of the conduit 10 is simply passed through the conduit 10 and the washing process is performed, the conduit 10 gradually goes to the rear end of the conduit 10. The removal effect of the biofilm layers 14 on the inner circumferential surface is relatively low.

In another conventional cleaning method, a method of cleaning the inner surface of a water pipe by removing water in the water pipe is also used.

However, due to the nature of the water pipe cleaning work that needs to be completed within a limited time (dawn time), since the cleaning method takes time to remove water from the water pipes, the problem that the larger the pipe diameter is, the more time is required. have. In addition, there is a problem in that additional time is required since the process of removing the cleaning residue by flowing water again after completing the washing is required.

Republic of Korea Patent Publication No. 2005-0104677 (Nov. 3, 2005)

In order to solve the above problems, the technical problem to be achieved by the present invention is to provide a water pipe cleaning device capable of effective cleaning for the entire length of the water pipe between the water pipe valve and the cleaning section between the valve and reducing the cleaning process time. It is.

The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned above may be clearly understood by those skilled in the art from the following description. There will be.

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In order to achieve the above technical problem, the water pipe washing apparatus of the present invention, the main tube is supplied from the outside to the inside of the water pipe, the high-pressure water is injected therein; A guide tube having one end connected to the front end of the main tube and extending in a radial direction, the guide tube guiding the high pressure water injected into the main tube to move in the radial direction; A ring tube connected to the other end of the guide tube and provided in the circumferential direction of the main tube and guiding the high pressure water moving to the guide tube to move in the circumferential direction; A plurality of injection nozzles provided in the ring tube at a predetermined interval along the longitudinal direction of the ring tube, and spraying the high pressure water moving in the ring tube toward the inner circumferential surface of the water pipe to remove deposits on the inner circumferential surface of the water pipe; And a thrust generator connected to the main tube and spraying the high pressure water moving from the main tube to the rear of the main tube so as to generate a thrust capable of advancing the main tube. It is provided in a plurality in the direction, the thrust generating portion is provided to connect each of the main tube, the thrust generating portion, each connecting the main tube, the connecting flow path and the connecting flow path formed in the central axis direction It is formed to penetrate in a radial direction so as to be connected to the connection block having a plurality of connection holes for moving the high pressure water supplied to the main tube, and to surround the outer peripheral surface of the connection block and the inner peripheral surface is spaced apart from the outer peripheral surface of the connection block It is provided to rotate in the direction, the connection groove and the connection groove formed in the radial direction to correspond to the connection hole A rotating block having a discharge hole which is connected to and extends to the rear of the main tube and discharges the high pressure water moving to the connection groove to the rear, and is provided in the connection block so that the connection groove is selectively connected to the connection hole. It characterized in that it comprises a locking portion for restraining the rotation of the rotary block.

In the water pipe washing apparatus of the present invention, the injection nozzle is rotated in one direction by the reaction force by the injection force of the high pressure water injected from the injection nozzle, the injection nozzle is a constant angle with the radial direction of the main tube It may be provided to be inclined.

In the water pipe washing apparatus of the present invention, the front end of the main tube is provided to be rotated independently from the main tube, one end of the guide tube is further connected to rotate the guide tube and the ring tube to rotate can do.

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In the water pipe washing apparatus of the present invention, the inner circumferential surface of the rotary block is formed with a first catching groove and a second catching groove at predetermined intervals along the circumferential direction, and the locking portion is a receiving groove formed radially in the connecting block. A hatch inserted into the receptacle, an elastic member inserted into the receiving groove to support the hatch upwardly, and provided at an upper portion of the hatch to be inserted into the first catching groove or the second catching groove to rotate the rotary block. The locking groove has a locking hole that is constrained so as not to be constrained. When the locking hole is inserted into the first locking groove, the connection groove and the connection hole are connected. The ball may not be connected.

In the water pipe washing apparatus of the present invention, the thrust generator is provided between the outer peripheral surface of the connection block and the inner peripheral surface of the rotary block, the first sealing is provided in front of the connection hole to prevent the leakage of high pressure water And a second sealing part provided at a rear side of the connection hole to prevent leakage of high pressure water.

In the water pipe washing apparatus of the present invention, the thrust generating portion is coupled to both ends, the thrust generating portion and the connecting portion for connecting each of the main tubes provided on both sides of the thrust generating portion; may further include a.

In the water pipe washing apparatus of the present invention, the discharge hole may be formed to be inclined at an angle with respect to the direction in which the main tube is disposed.

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According to an embodiment of the present invention, the vertical component of the high pressure water supplied into the main tube is injected into the inner circumferential surface of the water pipe to clean the inner circumferential surface of the water pipe, and the horizontal component of the high pressure water is sprayed to the rear of the main tube so that the main tube is It acts as a thrust moving forward of the water pipe.

Therefore, the overall thrust is increased compared to the known water and sewage pipe washing apparatus, which advances only by the forward thrust force of the nozzle installed at one end of the main tube, so that the main tube can be moved further with continuous cleaning, so that the total length of the water pipe Effective cleaning may be possible for.

It is to be understood that the effects of the present invention are not limited to the above effects, and include all effects deduced from the configuration of the invention described in the detailed description or claims of the present invention.

1 is an exemplary view showing a conventional air injection cleaning method.
Figure 2 is an exemplary view showing a water pipe washing apparatus according to a first embodiment of the present invention.
Figure 3 is a cross-sectional view showing the water pipe washing apparatus of FIG.
Figure 4 is a side view illustrating the water pipe washing apparatus of FIG.
5 is an exemplary view showing a water pipe washing apparatus according to a second embodiment of the present invention.
Figure 6 is a cross-sectional view showing the water pipe washing apparatus of FIG.
7 is a side view illustrating the water pipe washing apparatus of FIG. 5.
FIG. 8 is a cross-sectional view illustrating a thrust generating unit of the water pipe washing apparatus of FIG. 5.
9 and 10 are views illustrating an operation based on a cross section taken along the line AA ′ of FIG. 8.
11 and 12 are exemplary views showing a water pipe washing apparatus according to a third embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to be "connected (connected, contacted, coupled)" with another part, it is not only "directly connected" but also "indirectly connected" with another member in between. Also includes the case where In addition, when a part is said to "include" a certain component, this means that unless otherwise stated, it may further include other components rather than excluding the other components.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, the terms “comprise” or “have” are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is an exemplary view showing a water pipe cleaning device according to a first embodiment of the present invention, Figure 3 is a cross-sectional view showing the water pipe cleaning device of Figure 2, Figure 4 is a side view showing the water pipe cleaning device of Figure 2 It is also.

As shown in Figure 2 to 4, the water pipe washing apparatus may include a main tube 100, guide tube 200, ring tube 300, injection nozzle 400.

The main tube 100 may be supplied into the water pipe P from the outside. The main tube 100 may be made of a flexible material, and may be supplied into the water pipe P while being unwound in a wound state.

Hereinafter, for convenience of description, it will be described as the front end / front end / front, the rear end / rear end / rear with respect to the flow direction of water (W) in the water pipe (P). That is, when water W is moved from the first point to the second point in the water pipe P, the first point will be described as the rear end and the second point as the front end.

The main tube 100 may be introduced into the water pipe (P) from the rear of the water pipe (P).

The front end of the main tube 100 may be sealed, and the high pressure water PW may be injected into the main tube 100 through the rear end of the main tube 100. When the high pressure water PW is injected into the main tube 100, the main tube 100 may be expanded by the pressure of the high pressure water PW and maintained in a straight line shape.

The guide tube 200 may be provided in plurality in the front end of the main tube (100). One end of the guide tube 200 may be connected to the front end of the main tube 100, the guide tube 200 may be provided in a radial direction.

The inside of the guide tube 200 may be connected to the inside of the main tube 100, therefore, the guide tube 200 guides the high-pressure water (PW) injected into the main tube 100 to move in a radial direction can do.

The guide tube 200 may be made of a flexible material, and when the high pressure water (PW) is introduced into the guide tube 200, the guide tube 200 may be expanded and maintained in a straight form.

The ring tube 300 may be connected to the other end of the guide tube 200, it may be provided in the circumferential direction of the main tube (100). The inside of the ring tube 300 may be connected to the inside of the guide tube 200, therefore, the ring tube 300 can guide the high pressure water (PW) moving to the guide tube 200 to move in the circumferential direction. have.

The ring tube 300 may be made of a flexible material, and when the high pressure water PW is introduced into the ring tube 300, the ring tube 300 may be expanded and maintained in a ring shape.

As the main tube 100 is made of a flexible material, the main tube 100 can be stored in a wound state so that a large storage space is not required and transportation can be easy. In addition, as the guide tube 200 and the ring tube 300 is made of a flexible material, it can be easily inserted into the water pipe (P).

Injection nozzle 400 may be provided in a plurality of spaced apart from the ring tube 300 by a predetermined interval along the longitudinal direction of the ring tube (300). Injection nozzle 400 may be provided on the outermost peripheral surface of the ring tube 300, it may be provided so that the injection direction is between the radial direction and the rear direction of the main tube (100). Due to the injection nozzle 400, the inner circumferential surface of the water pipe (P) can simultaneously perform two roles of washing and thrust generation.

Looking at the washing function of the inner circumferential surface of the water pipe (P), when the high pressure water (PW) is injected from the injection nozzle 400, deposits on the inner circumferential surface of the water pipe (P) by the kinetic energy of the high pressure water (PW) can be removed. In addition, since the water (W) is filled inside the water pipe (P), the cavitation is formed by the injected high-pressure water (PW), the shock wave is generated as the cavitation collapses, the deposits on the inner peripheral surface of the water pipe (P) effectively Can be removed. Water pipe washing apparatus according to the present invention because the washing process can be carried out in a state filled with water in the water pipe (P), the process of removing the water in the water pipe (P) can be omitted, the washing process time can be reduced.

The injection nozzle 400 is preferably disposed to be uniformly and densely distributed along the longitudinal direction of the ring tube 300, and through this, washing can be performed on the entire inner circumferential surface of the water pipe (P).

In addition, since the high pressure water PW of the uniform flow rate may be injected in each injection nozzle 400, the injection pressure by the high pressure water PW injected is between the ring tube 300 and the inner circumferential surface of the water pipe P. It can be applied uniformly throughout. Therefore, the entire inner circumferential surface of the water pipe P may be uniformly washed without any bias in the inner circumferential surface of the water pipe P.

When the injection pressure by the high pressure water (PW) is uniformly applied between the ring tube 300 and the inner circumferential surface of the water pipe (P) as a whole, the interval between the ring tube 300 and the inner circumferential surface of the water pipe (P) is constantly adjusted and the main The center of the tube 100 may be naturally located on the central axis of the water pipe (P).

Looking at the thrust generating function, some of the high pressure water (PW) moving in the ring tube 300 may be injected to the rear of the main tube 100 through the injection nozzle 400, which is injected from the injection nozzle 400 Thrust to allow the main tube 100 to be advanced along the longitudinal direction of the water pipe P by the high pressure water PW may occur.

As such, the high pressure water PW supplied into the main tube 100 moves to the ring tube 300 through the guide tube 200, and the high pressure water PW moving to the ring tube 300 is It is injected into the injection nozzle 400 to wash the inner peripheral surface of the water pipe (P) and at the same time acts as a thrust to move the main tube 100 in front of the water pipe (P).

5 is an exemplary view showing a water pipe cleaning device according to a second embodiment of the present invention, Figure 6 is a cross-sectional view showing a water pipe cleaning device of Figure 5, Figure 7 is a side view showing a water pipe cleaning device of FIG. It is also.

As shown in FIGS. 5 to 7, the water pipe cleaning apparatus according to the present embodiment includes a main tube 1100, a guide tube 1200, a ring tube 1300, a spray nozzle 1400, and a thrust generator 1500. It may include.

The main tube 1100 may be supplied into the water pipe P from the outside. The main tube 1100 may be made of a flexible material, and may be supplied into the water pipe P while being unwound in a wound state.

In the present embodiment, the main tube 1100 may be provided in plurality, and the main tube 1100 may be provided at the front and the rear of the thrust generator 1500, respectively.

The main tube 1100 may flow into the inside of the water pipe P from the rear of the water pipe P, and the high pressure water PW may be injected into the main tube 1100 through the rear end of the main tube 1100. Can be. When the high pressure water PW is injected into the main tube 1100, the main tube 1100 may be expanded by the pressure of the high pressure water PW and maintained in a straight line shape. As the main tube 1100 is made of a flexible material, the main tube 1100 can be stored in a wound state so that a large storage space is not required and transportation can be easy.

The guide tube 1200 may be provided in plural in the front end of the main tube 1100. One end of the guide tube 1200 may be connected to the front end of the main tube 1100, the guide tube 1200 may be provided in a radial direction. The guide tube 1200 may be made of a flexible material, and when the high pressure water PW1 is introduced into the guide tube 1200, the guide tube 1200 may be expanded and maintained in a straight line.

The ring tube 1300 may be connected to the other end of the guide tube 1200, it may be provided in the circumferential direction of the main tube 1100. The inside of the ring tube 1300 may be connected to the inside of the guide tube 1200, and thus, the ring tube 1300 may guide the high pressure water PW1 moving to the guide tube 1200 to move in the circumferential direction. have. The ring tube 1300 may be made of a flexible material, and when the high pressure water PW1 is introduced into the ring tube 1300, the ring tube 1300 may be expanded and maintained in a ring shape. As the guide tube 1200 and the ring tube 1300 is made of a flexible material, it can be easily inserted into the water pipe (P).

Water pipe cleaning device according to this embodiment may further include a rotary joint 1600. The rotary joint 1600 may be provided at the front end of the main tube 1100a provided in the front, and may be provided to rotate independently of the main tube 1100a. As the rotary joint 1600, for example, a rotary joint may be used.

When the rotary joint 1600 rotates, the guide tube 1200 and the ring tube 1300 connected to the rotary joint 1600 may rotate together.

The injection nozzle 1400 may be provided in a plurality of spaced apart from the ring tube 1300 by a predetermined interval along the longitudinal direction of the ring tube 1300. Injection nozzle 1400 may be provided on the outer peripheral surface of the ring tube (1300).

The injection nozzle 1400 may be provided to be inclined at a predetermined angle with a radial direction of the main tube 1100. Through this, the high pressure water PW1 moving in the ring tube 1300 may be injected at an angle inclined at a predetermined angle in the radial direction through the injection nozzle 1400.

As the high pressure water PW1 is injected at an angle inclined at a predetermined angle to the radial direction, reaction force by the injection force of the high pressure water PW1 to be injected may be applied to the ring tube 1300, and thus, the ring tube 1300. ) May be rotated in a direction opposite to the spraying direction of the high pressure water PW1.

Therefore, even if the injection nozzle 1400 is not arranged to be densely distributed along the longitudinal direction of the ring tube 1300, washing without missing along the circumferential direction of the inner peripheral surface of the water pipe (P) can be possible. According to this embodiment, even with a smaller number of injection nozzles 1400 than in the first embodiment, a similar washing effect can be obtained.

FIG. 8 is a cross-sectional view showing the thrust generating unit of the water pipe washing apparatus of FIG. 5, and FIGS. 9 and 10 are operation examples showing the cross section taken along the line A-A 'of FIG.

As shown in Figures 8 to 10, the thrust generating unit 1500 may be connected to the main tube (1100a, 1100b), the high pressure water (PW) moving from the main tube (1100b) to the rear of the main tube (1100) By spraying to the main tube 1100 may be generated to the thrust to move forward.

The main tube 1100 may be provided in plural, and the thrust generator 1500 may be provided to connect the main tubes 1100a and 1100b.

The thrust generator 1500 may have a connection block 1510, a rotation block 1520, and a lock 1530.

The connection block 1510 may connect the respective main tubes 1100a and 1100b. The connection block 1510 may have a connection passage 1511 formed to penetrate in the direction of the central axis, and the main tubes 1100a and 1100b may communicate with each other by the connection passage 1511.

On the other hand, the water pipe washing apparatus may further include a connection portion 1700, the connection portion 1700 is a thrust generator 1500 and the main tube (1100a, 1100b) provided on both sides of the thrust generator 1500 Can connect

The connector 1700 may have an insert 1710 and a fastener 1720.

The insert 1710 may be coupled to a flange 1512 formed at both ends of the connection block 1510. Insert 1710 and flange 1512 may be threaded.

Insert 1710 may be inserted into each of the main tube (1100a, 1100b), the fastener 1720 presses the main tube (1100a, 1100b) to the main tube (1100a, 1100b) insert 1710 And it can be firmly coupled between the fastener 1720.

In addition, the connection block 1510 may have a plurality of connection holes 1513. The connection hole 1513 may be radially penetrated to be connected to the connection flow path 1511, and a part of the high pressure water PW supplied through the main tube 1100b may move through the connection hole 1513. .

The rotary block 1520 may be provided to surround the outer circumferential surface of the connection block 1510. The rotation block 1520 may be provided such that the inner circumferential surface 1521 is spaced apart from the outer circumferential surface 1515 of the connection block 1510 so as to be rotatable in the circumferential direction.

In addition, the rotation block 1520 may have a connection groove 1522 and a discharge hole 1523.

The connection groove 1522 may be formed in a radial direction to correspond to the connection hole 1513, the discharge hole 1523 may be formed to be connected to the connection groove 1522 and extend to the rear of the main tube 1100. . Accordingly, some of the high pressure water PW moved forward through the main tube 1100b is moved through the connection hole 1513 and the connection groove 1522 and through the discharge hole 1523 of the main tube 1100b. It may be discharged backwards. As the high pressure water PW2 is discharged into the discharge hole 1523, thrust is generated to move the main tube 1100 forward.

The main tube 1100 and the thrust generating unit 1500 may sag under the water pipe P due to its weight, and by this sag, the main tube 1100 and the thrust generating unit 1500 and the water pipe P have an inner surface. If this contact, the main tube 1100 is advanced while the friction may occur. Due to this friction, the main tube 1100 and the thrust generator 1500 may be worn, and at the same time, the propulsion efficiency of pushing the main tube 1100 forward by the friction loss may be reduced.

Therefore, the discharge hole 1523 is preferably formed to be inclined at an angle with respect to the direction in which the main tube 1100 is disposed, for example, at an angle of about 30 °. As the angle of formation of the discharge hole 1523 increases, the force for floating the main tube 1100 and the thrust generator 1500 may increase. However, when the angle of formation of the discharge hole 1523 is too large, the main tube 1100 may be propelled. Since thrust is reduced, the angle of formation of the discharge hole 1523 is preferably not more than 30 degrees.

The thrust generator 1500 may have a first sealing part 1540, a second sealing part 1550, and a restraining ring 1560.

The first sealing unit 1540 and the second sealing unit 1550 may be provided between the outer circumferential surface 1515 of the connection block 1510 and the inner circumferential surface 1521 of the rotary block 1520. The 1540 may be provided at the front of the connection hole 1513, and the second sealing unit 1550 may be provided at the rear of the connection hole 1513.

The first sealing unit 1540 and the second sealing unit 1550 may prevent the high pressure water moving between the outer circumferential surface 1515 of the connection block 1510 and the inner circumferential surface 1521 of the rotary block 1520 from being exposed. .

The restraining ring 1560 may be coupled to an outer circumferential surface of the flange 1512, and each restraining ring 1560 may be in close contact with both sides of the rotation block 1520 to restrain the rotation block 1520. Constraining ring 1560 and flange 1512 may be threaded.

The locking unit 1530 may be provided in the connection block 1510 and may restrict the rotation of the rotation block 1520 such that the connection groove 1522 is selectively connected to the connection hole 1513.

The locking unit 1530 may have an elastic member 1531, a lifting hole 1532, and a locking hole 1533.

On the inner circumferential surface of the rotating block 1520, first locking grooves 1525 and second locking grooves 1526 may be formed at predetermined intervals along the circumferential direction.

In addition, the connecting block 1510 may be provided with a receiving groove 1516 in the radial direction, the elastic member 1531, the lifting hole 1532 and the locking hole 1533 may be inserted into the receiving groove (1516).

The elastic member 1531 may be provided at the lowermost side of the receiving groove 1516, and the lifting hole 1532 may be positioned on the upper portion of the elastic member 1531. The elastic member 1531 may support the hatch 1532 upwardly. The catching hole 1533 may be provided at an upper portion of the lifting hole 1532.

In the state in which the rotation block 1520 is coupled to the outside of the connection block 1510, the locking hole 1533 is elastically supported upward and may be inserted into the first locking groove 1525 or the second locking groove 1526. When the locking hole 1533 is inserted into the first locking groove 1525 or the second locking groove 1526, the rotation block 1520 may be restrained from being rotated.

In particular, as shown in FIG. 9, when the locking hole 1533 is inserted into the first locking groove 1525, the connecting groove 1522 and the connecting hole 1513 may be connected to each other. And, as shown in FIG. 10, when the locking hole 1533 is inserted into the second locking groove 1526, the connection groove 1522 and the connection hole 1513 may not be connected to each other.

Since the hooking hole 1533 is partially inserted into the first locking groove 1525 or the second locking groove 1526, the first locking groove 1525 and the second locking groove 1526 are formed to be inclined. When a strong force is applied to rotate the rotation block 1520, the locking hole 1533 may be inserted into the receiving groove 1516 so that the rotation block 1520 may be rotated.

Locking portion 1530, the first locking groove 1525 and the second so that the binding force of the rotating block 1520 is increased to more securely connect or disconnect the connection hole 1513 and the connecting groove 1522 The locking grooves 1526 may be provided in plural and may be symmetrically formed with respect to the center of the connection block 1510.

In addition, the thrust generating unit 1500 may be provided in plural at regular intervals. That is, when the length of the water pipe is long, in order to wash the water pipe as a whole, a main tube having a length corresponding to the length of the water pipe to be cleaned is required. do. Therefore, by providing a plurality of thrust generating unit 1500 at regular intervals it is possible to provide a sufficient thrust necessary for the advance of the main tube.

And, when the user is not inserted into the water pipe washing machine water pipe is preferable that the connection hole 1513 and the connecting groove 1522 is not connected to the state. In this way, the supplied high pressure water can be supplied to the inside of the main tube without leaking.

Then, the user can stop the supply of high-pressure water immediately before the thrust generator is inserted into the water pipe, and rotate the rotary block 1520 to connect the connection hole 1513 and the connecting groove 1522 to each other to be inserted into the water pipe. have. And again by supplying the high pressure water, the thrust is generated in the thrust generating portion inserted into the water pipe, through which the main tube can be continuously supplied to the water pipe.

11 and 12 are exemplary views showing a water pipe washing apparatus according to a third embodiment of the present invention.

11 and 12, the cleaning head 2 of the water pipe washing apparatus according to the present embodiment is the front end portion 1100a-1, the rotary joint 1600-1, the hose connector 1200- of the main tube 1a), the guide tube 1200-1, and the injection nozzle 1400-1.

The hose connector 1200-1a may be provided in plural in the rotary joint 1600-1. One end of the plurality of guide tubes 1200-1 may be connected to the hose connector 1200-1a, and the guide tube 1200-1 may be provided in a radial direction and a rearward direction. The guide tube 1200-1 may be made of a flexible material, and when the high pressure water PW flows into the guide tube 1200-1, the guide tube 1200-1 is expanded and the injection nozzle 1400-1. The site may be maintained in a curved shape while contacting the inner circumferential surface of the water pipe (P).

When the guide tube 1200-1 is made of a flexible material, the cleaning head 2 may be made without the ring tube 300 shown in FIG. 2. When the high-pressure water (PW) is introduced into the guide tube (1200-1) without the ring tube 300, the guide tube (1200-1) is expanded to maintain a straight form, the guide tube (1200-1) is expanded and straight While spreading in the form, one end of the guide tube 1200-1 having the injection nozzle 1400-1 contacts the inner circumferential surface of the water pipe, and the guide tube 1200-1 forms a slight curve.

At this time, the guide tube 1200-1 is expanded and the end of the guide tube in which the injection nozzle 1400-1 is installed is preferably in contact with the inner peripheral surface of the water pipe (P) toward the rear of the main tube. Due to this, the washing of the inner circumferential surface of the water pipe P and the generation of thrust that can be advanced can be performed at the same time.

Since the part where the injection nozzle 1400-1 is installed in the guide tube 1200-1 is in contact with the inner circumferential surface of the water pipe P, the injection nozzle 1400-1 is preferably made of a flexible material such as a polymer.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the invention is indicated by the following claims, and it should be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the invention.

100: main tube
200: guide tube
300: ring tube
400: spray nozzle

Claims (12)

delete A main tube supplied from the outside to the inside of the water pipe and into which the high pressure water is injected;
A guide tube having one end connected to the front end of the main tube and extending in a radial direction, the guide tube guiding the high pressure water injected into the main tube to move in the radial direction;
A ring tube connected to the other end of the guide tube and provided in the circumferential direction of the main tube and guiding the high pressure water moving to the guide tube to move in the circumferential direction;
A plurality of injection nozzles provided in the ring tube at a predetermined interval along the longitudinal direction of the ring tube, and spraying the high pressure water moving in the ring tube toward the inner circumferential surface of the water pipe to remove deposits on the inner circumferential surface of the water pipe; And
And a thrust generator connected to the main tube and spraying the high pressure water moving from the main tube to the rear of the main tube to generate a thrust capable of advancing the main tube.
The main tube is provided in plurality in the longitudinal direction, the thrust generating unit is provided to connect each of the main tube,
The thrust generating unit,
A connection block connecting each of the main tubes and having a plurality of connection holes through which a connection flow passage formed in a central axis direction and a through hole formed in a radial direction so as to be connected to the connection flow passage move high pressure water supplied to the main tube; ,
It is provided to surround the outer circumferential surface of the connecting block and the inner circumferential surface is spaced apart from the outer circumferential surface of the connecting block and is provided to rotate in a circumferential direction, and is connected to the connecting groove and the connecting groove formed in a radial direction to correspond to the connecting hole and the main A rotary block having a discharge hole extending to the rear of the tube to discharge the high pressure water moving to the connection groove to the rear;
The water supply pipe washing apparatus, characterized in that provided in the connecting block, the connection groove comprises a locking portion for restraining the rotation of the rotary block to selectively connect with the connection hole. The method of claim 2,
Water jet washing, characterized in that the injection nozzle is inclined at a predetermined angle with the radial direction of the main tube so that the guide tube and the ring tube is rotated in one direction by the reaction force of the high pressure water injected from the injection nozzle. Device. The method of claim 3,
The front end of the main tube is provided to be rotated independently of the main tube, one end of the guide tube is connected to the water pipe washing apparatus further comprises a rotation joint for rotating the guide tube and the ring tube. delete delete The method of claim 2,
On the inner circumferential surface of the rotary block is formed a first engaging groove and a second engaging groove at predetermined intervals along the circumferential direction,
The locking part
An entrance hole inserted into a receiving groove formed radially in the connection block;
An elastic member inserted into the receiving groove to elastically support the hatch upward;
It is provided on the upper portion of the hatch has a locking hole is inserted into the first locking groove or the second locking groove to restrain the rotating block from rotating,
The connecting groove and the connecting hole is connected when the locking hole is inserted into the first locking groove, and the connecting groove and the connecting hole are not connected when the locking hole is inserted into the second locking groove. Water pipe washer. The method of claim 2,
The thrust generating unit
A first sealing part provided between the outer circumferential surface of the connection block and the inner circumferential surface of the rotary block and provided at the front of the connection block to prevent leakage of high pressure water;
Water pipe cleaning device characterized in that it has a second sealing portion provided at the rear with respect to the connection hole to prevent the leakage of high pressure water. The method of claim 2,
Is coupled to both ends of the thrust generating portion, the thrust generating portion and connecting portion for connecting each of the main tubes provided on both sides of the thrust generating portion; water pipe washing apparatus further comprises. The method of claim 2,
The discharge hole is a water pipe cleaning device, characterized in that formed inclined at an angle with respect to the direction in which the main tube is disposed. delete delete

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