JPH0643236B2 - High-pressure washing device hose delivery mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to high-pressure water containing sand or high-pressure air from a nozzle attached to the end of a hose that can be inserted into a pipe to be washed such as a sewer pipe or a drain pipe. And applied to a high-pressure cleaning device configured to remove solidified oil, cement-like adhered matter, algae, rust, etc. that are adhered to the inner surface of the pipe to be cleaned,
The present invention relates to one in which a reel around which the hose is wound is attached to a turntable.

<Prior Art> Conventionally, a high-pressure cleaning apparatus for cleaning a sewer pipe or the like using high-pressure water has a water tank A as shown in FIG. 4, and water in the water tank A is converted to high-pressure water. And a hose that guides the high-pressure water into the pipe D to be cleaned, and
It is composed of a hose delivery mechanism C for delivering
It is installed in a high pressure washing car. The hose delivery mechanism C includes a swivel base capable of reciprocating swiveling within a predetermined angle, a reel mounted and fixed on the swivel base, and a reel rotatable in the vertical direction by a hydraulic motor, and wound around the reel to supply high-pressure water. And a hose for feeding into the pipe D to be cleaned. The hose is connected to a high-pressure pipe extended from the pressurizer B through a swivel joint provided at the end of the shaft of the reel, and has a nozzle for ejecting high-pressure water attached to its tip. Then, the tip of the hose is inserted into the pipe D to be cleaned such as a sewer pipe, and the high pressure water sprayed from the nozzle scrapes off the deposits on the inner surface of the pipe D to be cleaned.

The nozzle has no rotating function, one having a small hole for injecting high-pressure water to have a rotating function, and a mechanism for reducing the rotating speed of the nozzle. There are things such as things.

<Problems to be solved by the invention> When shaving off deposits on the inner surface of a pipe to be cleaned by jetting high-pressure water, high-pressure water stubbornly adheres to the same portion of the deposits for a prescribed period of time. There is a problem that the adhered substances must be scraped off, and a problem that the inner surface of the pipe to be cleaned must be cleaned uniformly so that the injection direction of the high pressure water can be arbitrarily changed.

However, the conventional example with the non-rotating nozzle has a problem that the inner surface of the pipe to be cleaned cannot be uniformly cleaned because the high-pressure water is sprayed only in a certain direction.

Also, in the case of a nozzle equipped with a rotatable nozzle as well, high-pressure water can be uniformly applied to the inner surface of the pipe to be cleaned, but since the rotation speed of the nozzle is too high, the inner surface of the pipe to be cleaned has a predetermined size. The injection time of the high-pressure water on the deposit is short, and the high-pressure water passes over the surface of the deposit. Therefore, there is a problem that it is not possible to sufficiently exert the action of scraping off the strongly adhered adhered matter.

Further, a device having a mechanism for reducing the rotation speed of the nozzle is complicated in its mechanism, so that the manufacturing cost is high and it can only be used for a special cleaning operation in a pipe or a tank having a large diameter. There is a problem.

It is an object of the present invention to solve the above problems and provide a solution to the above problems.

<Means for Solving Problems> In order to achieve the above-mentioned object, the present invention provides, for example, the base so that the base can be rotated along the upper surface of a horizontal base 2 fixed to a washing car 1 which also serves as a machine body. And a gear wheel 5 provided on the underside of the rotary table 4
Is connected by a chain 6 to the first hydraulic motor 7 for rotating the rotary table 4 so that forward rotation, reverse rotation and stop can be freely switched, and an axis parallel to the upper surface of the rotary table 4. A reel 13 installed on the turntable 4 so as to be rotatable about a center, and a reel 14 wound around the reel 13 and attached to the tip and a reel at the end.
A connecting pipe 11 passing through the axis of the rotary shaft 9 of 13, a second swivel joint 12 attached to the end of the rotary shaft 9, a high pressure hose 21, and a first swivel joint 19 provided between the base 2 and the rotary base 4. So that the hose 15 connected to the high-pressure pipe 23 extended from the pressurizer B via the hose 15 and the end of the hose 15 can be drawn outward along the extension line of the rotary shaft 9 of the rotary table 4.
It is arranged above the reel 13 so as to be extended upward and then guided to the pipe D to be cleaned, and has a hole 39 for allowing the hose 15 to pass through in a bottom portion 40, and each has a two-stage reel-shaped roller 41a,
Hose guide member 37 having 41b and rollers 41a, 41b
It consists of and.

<Operation> To perform the cleaning operation, first pull out the end of the hose 15 to which the nozzle 14 is attached from the reel 13 to remove the frame 38.
Through the hole 39 of the hose guide member 37 and the bottom 40 of the hose guide member 37, further inserted between the rollers 41a, 41b and between the rollers 41a, 41b, and then extended downward to be the pipe to be cleaned installed in a building or underground. Insert in D. Here, when the high pressure water from the pressurizer B is sent to the hose 15 via the high pressure pipe 23, the high pressure hose 21, and the connecting pipe 11, the high pressure water is jetted from the nozzle 14,
The deposits on the inner surface of the pipe D to be cleaned are scraped off. On the other hand, when the first hydraulic motor 7 is driven to rotate the turntable 4 as necessary, the hose 15 extending from the reel 13
Is twisted and the nozzle 14 rotates. Since the rotational drive of the first hydraulic motor 7 is controlled so that the forward rotation, reverse rotation and stop of the reel can be freely switched, the high pressure of the nozzle 14 inserted in the pipe D to be cleaned is controlled. The water jet direction can be changed arbitrarily, and cleaning work can be performed according to the degree of adhesion of adhered matter. Therefore, the above-mentioned two problems of reliably scraping off the deposits on the inner surface of the pipe D to be cleaned without leaving any residue are solved.

<Example> Hereinafter, a preferred example of the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 1 to 4 show a first embodiment of the present invention. FIG. 1 shows a part of a high pressure cleaning apparatus mounted on a high pressure cleaning vehicle in a longitudinal section. 2 is an enlarged front view of the hose delivery mechanism, FIG. 2 is a front view of the hose delivery mechanism showing a state in which the rotary base is rotated by an angle of 90 degrees from the state of FIG. 1, and FIG. 3 is a view of the first swivel joint. An enlarged vertical cross-sectional view, FIG. 4 is a schematic view of the entire high-pressure cleaning device equipped in the high-pressure cleaning vehicle.

Since the high-pressure cleaning device is similar to the conventional example in the conventional example, FIG. 4 was also used in the description of the conventional example.

The first embodiment will be described in detail with reference to FIGS.

The high-pressure cleaning apparatus comprises a water tank A as shown in FIG. 5, a pressurizer B, and a hose delivery mechanism C that is a component of the present invention for delivering a hose. The high-pressure cleaning vehicle 1 also serves as a machine body. It is installed in.

The hose delivery mechanism C of the high pressure cleaning device is
As shown in FIG. 3 to FIG. 3, a base 2 provided integrally with the high-pressure washing vehicle 1 and a roller 3 installed between the base 2 so as to be rotatable along the upper surface of the base 2. 3 is fixedly mounted on the rotating table 4, and a gear 6 provided on the lower side of the rotating table 4 is connected by a chain 6 to rotate the rotating table 4, and a predetermined number in the washing car 1 is provided. It is provided with a first hydraulic motor 7 which is a first rotary drive member connected to a hydraulic pump (not shown) installed at a position. The first hydraulic motor 7 is configured to be freely switchable between a forward rotation, a reverse rotation and a stopped state by a control mechanism (not shown). A rotation shaft 9 is supported on the upper side of the rotary table 4 by support legs 8 in parallel with the upper side surface of the rotary table 4, and a gear 10 is fixed to one end of the rotary shaft 9 and the rotary shaft 9 is fixed. A reel 13 provided with a second swivel joint 12 is arranged at the outer end of the connecting pipe 11 which passes through the shaft core at the nine ends.

This reel 13 has a hose 15 with a nozzle 14 attached to the tip.
Is for winding up and sending out, and the end of the hose 15 is connected to the connecting pipe 11 of the reel 13. The support leg 8 located on the end side of the one rotating shaft 9 has the reel.
In order to rotate 13 a second hydraulic motor 17 having a chain 16 spanned between it and the gear 10 is attached. This second hydraulic motor 17 is connected to hydraulic pipes 20, 20 on the base 2 side extended from a hydraulic pump (not shown) via hydraulic hoses 18, 18 and a first swivel joint 19, It is driven when winding the hose 15. The connecting pipe 11
Is connected to a high pressure hose 21 via a second swivel joint 12, and the high pressure hose 21 is extended from a pressurizer B via a head 22 provided on the first swivel joint 19 and connected to a high pressure pipe 23. ing.

As shown in FIG. 2, the first swivel joint 19 includes hydraulic pipes 20 and 20 extending from a hydraulic pump (not shown) on the base 2 side and the hydraulic hoses 18 and 18 on the rotary base 4 side. Swivel joint mechanism for oil for connecting and to rotate coaxially with each other without oil leaking outside 19
and a high-pressure water swivel joint mechanism 19b for rotatably connecting the high-pressure pipe 23 extended from the pressurizer B and the high-pressure hose 21 on the rotary base 4 side to each other without leakage of high-pressure water to the outside. Is.

The detailed internal mechanism of the oil swivel joint mechanism 19a is, as shown in FIG. 3, a cylindrical inner side portion 25 having a lower protruding portion 24 fixed to the base 2, and the inner side portion.
25 and an outer portion 26 that can be rotatably fitted to the outer periphery. On the outer circumference of the inner part 25, annular grooves 27 and 28 are formed in two steps, while on the inner circumference of the outer part 26, annular grooves 29 and 30 are formed at positions facing the grooves 27 and 28. I am doing it. The groove 27 of the inner side portion 25 is connected to the one hydraulic pipe 20 through a through hole formed in the lower portion of the protruding portion 24, and the groove 28 is also the groove 28.
Is connected to the other hydraulic pipe 20 through a through hole penetrating the lower part of the. The groove 29 of the outer portion 26 is connected to the one hydraulic hose 18 through a through hole penetrating into the side portion of the outer portion 25, and the groove 30 is also the other through the through hole penetrating into the side portion of the outer portion 26. Connected to the hydraulic hose 18 of. This inside part 25
On the outer periphery of the groove 27, annular packings 31, 31, 31 are attached to the upper portion of the groove 27, the groove 27, the portion between the grooves 29 and the lower portion of the groove 28, and oil is applied to the outer periphery of the inner portion 25 and It does not flow vertically through the gap between the inner circumferences of the outer portions 26. With such a configuration, the outward path is the hydraulic pump (not shown), the hydraulic pipe 20, the through hole, and the groove 2.
7, the groove 29, one hydraulic hose 18, the second hydraulic motor 17 in this order, and the return path is the second hydraulic motor 17, the other hydraulic hose 18, the groove 30, the through hole, the other hydraulic pipe 20, the hydraulic pressure. A hydraulic circuit is formed that returns in the order of the pump (not shown). Therefore, even if the turntable 4 rotates with respect to the base 2, the second hydraulic motor 17 is operated without oil leaking to the outside.

The detailed internal mechanism of the high-pressure water swivel joint mechanism 19b in the first swivel joint 19 is, as shown in FIG. 3, the head 22 in which a through hole 33 is formed in a lateral direction toward a central vertical hole. , Has a cavity 34 extending in the longitudinal direction in the axial center, is fitted into the vertical hole of the head 22 from below so as to be rotatable with the head 22, and the cavity 34 is formed in the high-pressure pipe 23. Central part 35 configured to be connected to the end
And the central portion at a position corresponding to the through hole 33 of the head 22.
It has a plurality of lateral holes 36 ... In addition, a pair of packings is attached to the inside of the head 22 surrounding the central portion 35 so as to prevent the high pressure water from leaking from the gap between the head 22 and the central portion 35 by being pressed upward and downward by a spring. There is. Even if the head 22 is rotating with respect to the central portion, the high-pressure water flows from the high-pressure pipe 23 through the void 34, the lateral holes 36 ...
To move to.

As shown in FIGS. 1 and 2, the second swivel joint 12 rotatably connects the connecting pipe 11 and the high pressure hose 21 to each other in a sealed state in which high pressure water does not leak outside. It has such a mechanism. Note that this mechanism has the same mechanism as the high-pressure water swivel joint mechanism 19b in the first swivel joint 19.

Above the reel 13, the work of extending the hose 15 from the reel 13 and the work of winding the hose 15 are assisted, and at the same time, the rotation of the rotary table 4 smoothly moves to the hose 15 in the part extended from the reel 13. A guide member 37 for transmission is provided above the frame 38. As shown in FIGS. 1 and 2, the guide member 37 includes a bottom portion 40 having a hole 39, a reel-shaped guide wheel 41a, 41b and a guide wheel 41a, which are arranged on the bottom portion 40. 41b and is mounted on a roller 43 arranged in a circle on a top plate 42 having the holes of the frame 38, and is rotatably attached on a horizontal plane. Then, when starting the cleaning operation, the tip of the hose 15 wound around the reel 13 is pulled out onto the guide member 37 through the hole of the top plate 42 and the hole 39 of the bottom portion 40, and further between the guide wheels 41a and 41b and. Guide wheels 41a, 41b
After inserting it in between, it is extended downward and inserted into the pipe D to be cleaned.

The operation of the first embodiment will be described.

When performing the cleaning operation, first, the tip of the hose 15 to which the nozzle 14 is attached is pulled out upward, and the hole of the frame body 38 and the hole 39 of the bottom portion 40 of the hose guide member 37 are respectively passed from the bottom to the top, and then the guide wheel 41a, After inserting between 41b and between guide wheels 41a and 41b, it is extended downward and inserted into a pipe D to be cleaned installed in a building or underground. Next, high-pressure water is supplied from the pressurizer B to the high-pressure pipe 23, the first swivel joint 19,
The high-pressure hose 21, the second swivel joint 12, and the connecting pipe 11 are fed into the hose 15. The high-pressure water sent to the hose 15 is jetted from the nozzle 14 in the pipe D to be cleaned, and scrapes off the deposits on the inner surface of the pipe D to be cleaned. At this time, by controlling the first hydraulic motor 7 to rotate and rotate the turntable 4, the hose 15 extending from the reel 13
Is twisted and the nozzle 14 at the end of the hose 15 is rotated, so that the adhering matter can be eliminated by changing the injection part of the high-pressure water arbitrarily. On the other hand, if there is a strongly adhering matter, the first hydraulic pressure is applied. The motor 7 is stopped, and high pressure water is intensively sprayed to that portion. Therefore, it is possible to reliably scrape off the adhered matter on the inner surface of the pipe D to be cleaned without leaving it.

The second embodiment of the present invention will be described below with reference to FIG. However, the outline of the high-pressure cleaning device is the same as that of the conventional example and the first embodiment, and therefore FIG. 4 is also used as appropriate.

As shown in FIGS. 4 and 5, the hose delivery mechanism C of this embodiment has a horizontal base 52 integrally provided with a high-pressure washing vehicle 51 that also functions as a machine body, a horizontal portion 53 as a turning base, and an inclination. It has a swivel base 56 integrally formed with a vertical part 54 as a part. The horizontal portion 53 of the swivel base 56 is attached to the base 52 so as to be capable of reciprocating swiveling within a predetermined angle along the upper surface of the base 52,
Further, a rotary base 55 that can rotate along the inner surface of the vertical part 54 is attached to the vertical part 54 of the swivel base 56. The first hydraulic motor installed above the vertical portion 54 of the swivel base 56.
The chain 57 is connected to a gear 79 provided on the rotary table 55 by a chain 78, and is configured to be freely switchable between a forward rotation, a reverse rotation and a stopped state by a control mechanism (not shown).

The turntable 55 is provided with reels 59 rotatably supported by laterally extending support legs 58 so that the rotation axis is parallel to the side surface of the turntable 55. The reel 59 has a hose 60 for sending high-pressure water to the pipe D to be cleaned.
Is wound, and the end of the hose 60 is connected to a connection pipe 61 that leads from the inside of the rotation shaft of the reel 59 to the inside of the reel 59. The connecting pipe 61 includes a second swivel joint 62, a high pressure hose 63, which is provided at the end of the rotating shaft of the reel 59.
It is connected to the high-pressure pipe 66 via the high-pressure pipe 65 and the first swivel joint 64. Further, the second hydraulic motor 67 attached to one end of the support leg 58 is connected to the gear 68 provided on the rotation shaft of the reel 59 by the chain 69, and also through the hydraulic hoses 70 and 70 and the first swivel joint 64. Hydraulic pipes 71, 71 extended from a hydraulic pump (not shown)
Connected to. The second hydraulic motor 67 is driven when the hose 60 is wound up.

The swivel base 56 is provided with a gear 72 on the back surface of the horizontal portion 53 and is mounted on the roller 75 of the base 52. The gear 72 is connected to a third hydraulic motor 73 that reciprocally rotates by a chain 74, and the swivel base 56
On the base 52 is capable of reciprocating within an angle range of about 180 degrees. Further, in relation to the turning angle of the swivel base 56, the respective lengths of the hydraulic pipes 79, 79, the high pressure pipe 66 and the hydraulic pipes 71, 71 of the first hydraulic motor 57 are freely swung by the swivel base 56. It is decided to be possible.

The roller 77 attached to the tip of the leg 76 standing upright on the horizontal portion 53 is arranged at a position where the hose 60 wound on the reel 59 is extended, and the work of extending the hose 60 from the reel 59 and the hose 60. While assisting the winding work,
The rotation of the turntable 55 is smoothly transmitted to the hose 60 extending from the reel 59.

The first swivel joint 64 and the second swivel joint 62 of the second embodiment are the first swivel joint 19 and the second swivel joint, respectively, of the first embodiment.
Since it has the same mechanism as 12 and has the same operation, detailed description of the internal mechanism is omitted.

The operation of the second embodiment will be described.

When cleaning the to-be-cleaned pipe D, first, the hose
60 Pull the tip sideways through the upper side of the roller 77,
Insert into the pipe D to be cleaned installed in a building or underground. Here, the high-pressure water from the pressurizer B is sent to the hose 60 via the high-pressure pipe 66 and the high-pressure pipe 65 of the first swivel joint 64, the high-pressure hose 63, the second swivel joint 62, and the connecting pipe 61. The high-pressure water sent to the hose 60 is jetted from the nozzle 14 in the pipe D to be cleaned, and scrapes off the deposits on the inner surface of the pipe D to be cleaned. When the first hydraulic motor 57 is driven and the turntable 55 is appropriately rotated in an arbitrary direction, the hose 60 extended from the reel 59 is twisted, and the nozzle 62 at the tip of the hose 60 rotates, so that the high-pressure water jet direction is arbitrarily set. Can be changed and there is no leftover of deposits. On the other hand, if there is a strongly adhered deposit, high-pressure water can be intensively sprayed to that portion to remove it reliably.

The present invention is not limited to the above embodiment,
For example, in the first embodiment, the rotary base 4 to which the reel 13 is attached is mounted on the horizontal base 2 fixed to the washing car 1. However, the base 2 and the rotary base 4 are tilted at a predetermined angle, and the reel 13 is rotated. Configured to be attached in a state of protruding laterally, obliquely upward, obliquely downward, or the like, or the base 2 is provided on the top and the rotary table 4 is hung on the base 2, and the reel 13 is directed downward. It may be configured as follows. Further, in the second embodiment, the swivel bases of the base 52 and the swivel base 56 are horizontal and the inclined portions of the swivel base 56 are vertical, but the swivel of the base 52 and swivel base 56 It may have a structure in which the base portion is inclined, or may be one in which the angle formed by the turning base portion and the inclined portion is formed at an angle other than a right angle. Further, the bases 2 and 52 are not always necessary, and the entire high-pressure cleaning device or only the hose delivery mechanism can be used by being attached to another suitable machine without being mounted on the high-pressure cleaning vehicle 1 or 51. The present invention is not limited to the above embodiments, such that the present invention can be configured as described above.

<Effect> Since the present invention is configured as described above, it is possible to spray the high-pressure water intensively to reliably scrape off the deposits in the pipe to be cleaned, and to rotate the rotary table to arbitrarily Since it is possible to change the high-pressure water jetting direction of the nozzle at the tip of the hose, there is an effect that no extraneous matter remains.

[Brief description of drawings]

1 to 4 show a first embodiment of the present invention,
FIG. 1 is a partially enlarged front view of a hose delivery mechanism, which is a longitudinal section of a high-pressure cleaning device mounted on a high-pressure cleaning vehicle and partially shows a main part, and FIG. 2 shows the state of FIG. 5 is a front view of the hose delivery mechanism showing a state in which the rotary base is rotated by an angle of 90 degrees, FIG. 3 is an enlarged vertical cross-sectional view of the second swivel joint, and FIG. 4 is a schematic view of the high-pressure cleaning device. FIG. 8 is a front view showing a second embodiment of the present invention. Since the outline of the high-pressure cleaning device is the same in all of the conventional example, the first embodiment, and the second embodiment, FIG. 4 is used for any of the above explanations. 1,51 ...... High pressure washing car 2,52 …… Base, 4,55 …… Turning base, 7,57 …… First hydraulic motor, 13,59 …… Reel, 12,62 …… Second swivel Joint, 19, 64 …… 1st swivel joint, 37 …… Guide member, 56 …… Swiveling base

Claims (2)

[Claims] 1. A rotary base rotatably mounted on the machine body, a first rotary drive member for rotating the rotary base, and a rotary base mounted on the rotary base so as to rotate about a rotary shaft. And a second swivel joint which is wound around the reel and has a nozzle attached to the tip thereof, and a distal end of which is provided at the shaft end of the reel and a first swivel joint provided at the center of rotation of the rotary table. And a hose connected to a high-pressure pipe extended from a pressurizer so as to be drawn outward along an extension line of the rotary shaft of the rotary table. 2. A swivel base and a slanted part that is slanted at a predetermined angle with respect to the swivel base. The swivel base is provided on the airframe so that it can reciprocate within a predetermined angle, and the slanted part A swivel to which a rotatable swivel is attached, a first rotation drive member installed on a predetermined portion of the swivel to rotate the swivel, and the rotation so that the swivel can rotate about a rotation axis. A reel installed on a stand, a second swivel joint wound around the reel, having a nozzle attached to the tip thereof, and having a distal end provided at a shaft end of the reel and a first swivel joint provided at a rotation center of a rotary table. Connected to a high pressure pipe extended from the pressurizer via
A hose delivery mechanism for a high-pressure washing device, comprising a hose that can be pulled out in an outward direction along an extension line of the rotary shaft of the rotary table.