JPH057723U - Sprinkler - Google Patents

Abstract

(57) [Summary] [Purpose] In sprinklers for roads and their surroundings, a large cleaning capacity is achieved simply by supplying low-pressure and low-volume liquid to sprinkling pipes. [Structure] A small-diameter pipe 12 is arranged in the water spray nozzle 5. One end of the pipe 12 is placed upstream of the opening 5a of the water spray nozzle 5 by a predetermined dimension α. The other end of the pipe 12 is the sprinkling pipe 7
Extend out of. The pipe is, for example, a chemical liquid injection pipe connected to a chemical liquid tank via a flow rate adjusting valve,
This is a pipe whose end portion extending to the outside of the water sprinkling pipe is open to the atmosphere and whose end portion inside the nozzle can change the distance from the nozzle opening.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a sprinkler vehicle used for road cleaning work, etc., and is particularly connected to a tank. With a sprinkling nozzle at the tip of the sprinkling pipe.

[0002]

[Prior art]

  Conventionally, this type of water sprinkler has a water tank mounted on the vehicle body and a water tank. One with a sprinkling pipe connected at one end and the other end to a sprinkling nozzle Are known. In such a water sprinkler, the effect is enhanced during the cleaning work. Therefore, the liquid in the water tank is sent to the sprinkling pipe using high-pressure air, and the high The water pressure liquid is sprayed from the spray nozzle as it is.

[0003]

[Problems to be solved by the device]

  However, since the watering vehicle uses a high-pressure air to send the liquid to the watering pipe, There was a problem that the liquid was washed off in a larger amount than necessary. Especially in winter If a large amount of liquid is sprinkled when cleaning the product and its accessories, the water in the liquid will freeze on the road. It may cause an accident such as slippage.

[0004]   The present invention has been made in view of the above points, and its purpose is to Delivers great cleaning ability by simply supplying liquid to the sprinkling pipe with low water pressure and low water volume. It is intended to provide a watering vehicle to get.

[0005]

[Means for Solving the Problems]

  In order to achieve the above object, the invention according to claim 1 is a tank mounted on a vehicle body. Connect one end to this tank and connect one or more sprinkling nozzles to the other end. A sprinkler having a continuous sprinkling pipe, wherein a small-diameter pipe is installed in the sprinkling nozzle. And place one end of this pipe on the upstream side of the specified size from the opening of the water spray nozzle. The other end extends outside the sprinkling pipe.

[0006]   The invention according to claim 2 is dependent on the invention according to claim 1, and the pie End of the sprinkler that extends to the outside of the sprinkling pipe is connected to the chemical liquid tank via the flow rate adjustment valve. It is composed of a chemical injection pipe.

[0007]   The invention according to claim 3 is dependent on the invention according to claim 1, and Open the end of the pipe that extends outside the water sprinkling pipe to the atmosphere, and The opening of the pipe is changed in the axial direction so that the distance from the end of the pipe on the nozzle opening side can be changed. It is configured so that it can be installed.

[0008]

[Action]

  With the above structure, in the device according to claim 1, the small diameter arranged in the water spray nozzle is provided. Of the pipe creates vacuum pressure in the pipe due to the flow velocity of the liquid flowing in the sprinkling nozzle. In order to increase the discharge pressure of the liquid at the sprinkling nozzle opening, Sufficient water sprinkling is required without supplying high-pressure liquid (that is, a large amount of liquid) to the sprinkling pipe. You can In other words, the water sprinkler keeps the water pressure (water volume) of the liquid supplied to the water sprinkling pipe low. The high-pressure cleaning liquid can be sprayed over a wide range from the sprinkling nozzle in this state. It exhibits excellent cleaning ability. Moreover, if the amount of water in the liquid is suppressed in advance, the sprinkling Since a large amount of liquid will not be washed away from the sledge, it is less likely to freeze the road. It

[0009]   According to a second aspect of the present invention, there is provided a chemical solution injection pipe in which the pipe is connected to a chemical solution tank. Therefore, at the sprinkling nozzle opening, the high concentration chemical liquid and the water coming from the tank Are mixed instantaneously to form a cleaning liquid. Moreover, it is interposed between the pipe and the chemical tank. By adjusting the flow rate adjustment valve, the chemical concentration of the cleaning liquid is adjusted during water spraying. Or switch to fresh water sprinkling.

[0010]   Further, in the invention according to claim 3, the end of the pipe extending to the outside of the sprinkling pipe is It is open to the atmosphere, and the opening of the water spray nozzle is provided so that it can be displaced in the axial direction. Therefore, it is necessary to change the distance between the sprinkling nozzle opening and the pipe nozzle opening side end. The discharge pressure of the cleaning liquid changes, so the amount of cleaning liquid sprayed at the spray nozzle is adjusted. To be saved.

[0011]

【Example】

  Embodiments of the present invention will be described below with reference to the drawings.

[0012]   1 and 2 show a water sprinkler according to a first embodiment of the present invention. 1 and a tank 2 placed on the top of the tank 1, one end of which is connected to the tank 2 and the other end of which is 5 pieces. The water spray pipe 7 connected to the water nozzles 3, 4, 5, 6, and 6 is provided. 5 above The water sprinkling nozzles of the above are, when classified into these, arranged on the left and right sides of the front part of the vehicle body-1. Provided on the nozzle 3 and the side watering nozzle 4, and on the monitor 20 standing on the tank 2. Upper watering nozzle 5 and rear watering nozzles 6 and 6 arranged on the left and right of the rear part of the vehicle body 1. It is divided into The sprinkling pipe 7 is a water supply pipe 7a coming from the tank 2 and five sprinkling pipes. A water supply pipe 7b directed to the nozzles 3, 4, 5, 6, 6 and these pipes 7a, 7b, together with the intake / exhaust pipe 17 directed to the intake / exhaust ports 9 and 9 via the three-way cock 8 It is connected. The water supply pipe 7b is provided with a pump for sending the liquid under pressure to the nozzle. Is connected to the upstream side of each sprinkling nozzle 3, 4, 5, 6, 6. Two-way cocks 11, 11, ... Are provided. In addition, the suction / exhaust pipe 17 has each suction pipe. Two-way cocks 16 and 16 corresponding to the exhaust ports 9 and 9 are provided so as to communicate with the atmosphere of the intake and exhaust ports 9 and 9. Control communication. In the figure, 21 is a water supply port of the tank 2.

[0013]   In addition, as shown in enlarged detail in FIG. A pipe 12 is provided, and one end of the pipe 12 is located at a position through the opening 5a of the upper sprinkling nozzle 5. It is located on the upstream side by a fixed dimension α, and the other end is outside the sprinkling pipe 7 (water supply pipe 7b). It has been extended. The pipe 12 is a chemical liquid injection pipe, and the water sprinkling pipe 7 (7b). ), The extended end of which is extended to the outside is in contact with the chemical liquid tank 15 via the flow rate adjusting valve 14. Has been continued.

[0014]   Next, the operation of this embodiment will be described. The watering truck A is supplied in the tank 2 in advance. Fresh water is carried in through the water port 21. When performing the sprinkling work, sprinkle nozzles 3, 4, 5 , 6, 6 two-way cocks 11, 11 ... are opened and the three-way cock 8 is operated. When the pipes 7a and 7b of the sprinkling pipe 7 are communicated with each other and the pump 10 is operated, Water is jetted and sprayed all at once from the spray nozzles 3, 4, 5, 6, 6. Desired watering nozzle When sprinkling water from the nozzle, the two-way cock 11, 11 ... , And the other two-way cocks 11, 11 ... Can be closed. When ending watering Is operated by operating the three-way cock 8 and closing the water supply pipe 7a coming from the tank 2, Supply stops. At this time, in the three-way cock 8, the intake / exhaust pipe 17 and the water supply pipe 7b are connected. Since it passes through, all the water in the water supply pipe 7b is ejected.

[0015]   Furthermore, in the water sprinkler A, a small-diameter pipe 12 is arranged in the upper water sprinkling nozzle 5. One end of the pipe 12 is located above the opening 5a of the upper water spray nozzle 5 by a predetermined dimension α. Since it is located on the flow side and the other end extends outside the water sprinkling pipe 7 (water supply pipe 7b), The pipe 12 is operated by the flow velocity of the liquid (fresh water) flowing in the upper sprinkling nozzle 5. A vacuum pressure is generated in the ip 12 to increase the discharge pressure of the liquid at the nozzle opening 5a. In order to function, do not supply liquid with high water pressure (that is, a large amount of liquid) to the sprinkling pipe 7 (7b). It is possible to sprinkle enough water even if it is not used. In other words, use the sprinkling pipe 7 (7b). High pressure washing from the upper sprinkling nozzle 5 with the water pressure (water volume) of the liquid to be supplied kept low. The liquid can be ejected over a wide range, and a large cleaning ability can be exhibited. Shi However, since the amount of liquid water can be suppressed, a large amount of liquid flows from the upper sprinkling nozzle 5. Without losing it, it can contribute to the prevention of freezing of the road.

[0016]   Further, particularly in this embodiment, the pipe 12 is connected to the outside of the sprinkling pipe 7 (7b). A chemical solution injection in which the extended extension end is connected to a chemical solution tank 15 via a flow rate adjusting valve 14. Since it is an inlet pipe, high-concentration chemical liquid and fresh water can be instantly supplied at the nozzle opening 5a. The mixture is mixed to form a cleaning solution. For this reason, the chemical solution should be stored in the tank before sprinkling. It is possible to save the trouble of mixing and cleaning the inside of the tank after the work. Moreover, By operating the flow rate adjusting valve 14 interposed between the pipe 12 and the chemical liquid tank 15, , It is possible to adjust the chemical concentration of the cleaning liquid during spraying or switch to fresh water spraying. It Also, if this flow rate adjusting valve 14 is installed on the outer surface of the vehicle body 1, it will be easier on the ground. It can be operated remotely.

[0017]   In the above embodiment, the pipe connected to the chemical solution tank is placed on the water tank. Although it was installed only on the partial water spray nozzle, other front water spray nozzles and side water spray nozzles It may be arranged in the rear water spray nozzle.

[0018]   Further, in the above embodiment, when installing the pipe in the water spray nozzle, Place the end of the nozzle on the nozzle opening side upstream from the nozzle opening by a predetermined dimension α. However, the predetermined size α is such that the cleaning liquid does not flow backward in the pipe and the effective release pressure is It is appropriately determined within the range of realizing

[0019]   FIG. 4 shows a sprinkler vehicle according to a second embodiment of the present invention. This sprinkler vehicle B is the first actual Like the embodiment, it has five sprinkling nozzles 3, 4, 5, 6, 6 but Inside the watering nozzle 3 and the side watering nozzle 4, a small diameter pipe 22 is arranged. However, it is not arranged in the other water spray nozzles 5, 6, and 6. One of the pipes 22 The end extends to the outside of the sprinkling pipe 7 (water supply pipe 7b) as shown in detail in FIG. The extended end 23 is open to the atmosphere. The front and side watering nozzles 3 , 4 each have a threaded portion 26 on the inner peripheral surface and a threaded portion 28 on the outer peripheral surface. The screwing width can be expanded and contracted in the axial direction between the screw parts 26 and 28 by screwing with the joint 27 Is connected to the water supply pipe 7b via the joint 27. ing. Thereby, the openings 18 of the front and side watering nozzles 3 and 4 are By changing the screwing width between the screw parts 26 and 28, the end 2 of the pipe 22 on the nozzle opening side can be changed. 4 is provided so as to be displaceable in the axial direction so that the distance (predetermined dimension) β from 4 can be changed. There is. In FIG. 5, 29 is a lock nut for positioning the water spray nozzles 3 and 4. . The other structure of the watering truck is the same as that of the first embodiment.

Also in the second embodiment described above, even when the front watering nozzle 3 and the side watering nozzle 4 are supplied with a liquid whose water pressure is kept at a predetermined pressure (for example, about 5 kg / cm ² ), both watering nozzles 3 , 4 generates a vacuum pressure in the pipes by the flow velocity of the liquid flowing in both nozzles 3, 4, and the liquid mixed with air to become a high pressure spreads widely from each nozzle opening 18. Since water can be jetted and sprinkled, it is possible to prevent the road from freezing due to a large amount of water sprinkling, as in the case of the first embodiment. Moreover, by expanding and contracting each of the water spray nozzles 3 and 4 in the axial direction to change the interval β, the discharge pressure of the liquid from the nozzle opening 18 can be changed and the amount of water spray can be easily adjusted.

[0021]   In the second embodiment, the pipe is a front water spray nozzle and a side water spray nozzle. It was installed only in the upper sprinkler nozzle and rear sprinkler nozzle. I don't mind.

[0022]   In the second embodiment, the opening of the water spray nozzle is provided so as to be displaceable in the axial direction. The structure is made by screwing the watering nozzle and expanding and contracting the screwing width. However, the structure is not limited to the above structure. The structure may be such that it is slidable in the axial direction.

[0023]   In the water sprinkler of the present invention, when arranging the pipe in the water sprinkler nozzle, the reverse On the maximum flow velocity line of the liquid flowing in the nozzle as a position where flow does not easily occur (in the nozzle Although it is desirable to install the pipe at least on its axis, the pipe should be installed at least at its nozzle opening end. It suffices to position it on the central axis of the nozzle. You may extend it outside.

[0024]   In addition, in the first and second embodiments, the sprinklers connected to the sprinkling pipes are provided. The number of water nozzles was five, but there is no limit to the number of water spray nozzles connected to the water spray pipe. Yes.

[0025]   Further, in the sprinkler of the present invention, the liquid used during sprinkling is fresh water or a medicine. There are a variety of cleaning solutions such as mixed liquids and antifreeze solutions for roads. Especially in heavy snow areas Toward the snow accumulated on the side of the road, the lateral watering nozzles of the first and second embodiments are It is very effective to sprinkle the antifreeze liquid from the tank.

[0026]

[Effect of device]

  As described above, according to the water sprinkler of the present invention, the small diameter pipe is arranged in the water sprinkling nozzle. The one end of this pipe is located on the upstream side by a predetermined dimension from the opening of the water spray nozzle, Since the other end is extended to the outside of the sprinkling pipe, the sprinkling pipe can be It is possible to exert a great cleaning ability in spite of supplying Moreover, low water Because of the amount, it is possible to prevent the road from freezing due to watering.

[0027]   Particularly, in the device according to claim 2, the pipe is extended to the outside of the sprinkling pipe. Since the end is a chemical liquid injection pipe connected to the chemical liquid tank via the flow rate adjustment valve, High-concentration chemicals can be mixed instantly, and the chemicals can be mixed before watering. It is possible to save the trouble of fitting and cleaning the inside of the tank after the work. Moreover, It is possible to adjust the concentration of the chemical solution in the middle of water or switch to sprinkling with fresh water.

[0028]   Further, in the invention according to claim 3, the end of the pipe extending to the outside of the sprinkling pipe is It is open to the atmosphere, and the opening of the sprinkler nozzle is connected to the end of the pipe on the nozzle opening side. The amount of liquid sprinkled is set so that the interval can be changed so that it can be displaced in the axial direction. Can be easily adjusted.

[Brief description of drawings]

FIG. 1 is a side view of a sprinkler vehicle showing a first embodiment of the present invention.

FIG. 2 is a pipe piping diagram of the water sprinkler.

FIG. 3 is a side view showing a part of the vicinity of the sprinkler nozzle of the sprinkler, which is cut out and viewed.

FIG. 4 is a view, corresponding to FIG. 1, showing a second embodiment of the present invention.

FIG. 5 is a side view similarly cut along the center line showing the vicinity of the water spray nozzle of the water spray truck.

[Explanation of symbols]

1 vehicle body 2 tank 3 front water spray nozzle 4 side water spray nozzle 5 upper water spray nozzle 6 rear water spray nozzle 5a, 18 water spray nozzle opening 7 water spray pipe 12, 22 pipe 14 flow rate control valve 15 chemical liquid tank 23 pipe 22 Outlet end 24 Ends α, β on the nozzle opening side of the pipe 22 Predetermined dimensions

Claims (3)

[Scope of utility model registration request] 1. A sprinkler vehicle comprising: a tank mounted on a vehicle body; and a sprinkling pipe having one end connected to the tank and one or a plurality of sprinkling nozzles connected to the other end. A small diameter pipe is provided inside, one end of the pipe is located at a predetermined size upstream from the opening of the water spray nozzle, and the other end is extended to the outside of the water spray pipe. car. 2. The water sprinkler according to claim 1, wherein the pipe is a chemical liquid injection pipe whose end extended to the outside of the water sprinkling pipe is connected to a chemical liquid tank via a flow rate adjusting valve. 3. The end of the pipe extending to the outside of the water sprinkling pipe is open to the atmosphere, and the opening of the water sprinkling nozzle is axially displaced so that the distance from the end of the pipe on the nozzle opening side can be changed. The water sprinkler according to claim 1, which is provided so as to be capable.