JP7162923B2 - high pressure sprinkler - Google Patents

Description

TECHNICAL FIELD The present invention relates to a water sprinkler mounted on a demolition vehicle used for demolition work of a structure to prevent scattering of dust generated during the demolition work.

At demolition sites of structures such as buildings and stone quarries, construction and demolition vehicles equipped with attachments (crusher) such as breakers and crushers are used at the tip of the arm to crush concrete chunks and rocks. are doing

A large amount of dust is generated when crushing concrete blocks with the attachment. For this reason, an operator sprinkles water on the crushing area to suppress the spread of dust.

However, this method requires workers to sprinkle water in addition to the operator of the construction equipment. There is a drawback that it is not possible to prevent the scattering of

In the past, watering was performed manually from a remote location, but watering to the target was uncertain and insufficient.

Therefore, as shown in the following patent document, various devices and methods have been proposed that can suppress scattering of dust without requiring an operator to sprinkle water.
Japanese Utility Model Laid-Open No. 7-6406 Japanese Patent No. 3511034 Japanese Utility Model Laid-Open No. 5-71355

In Patent Document 1, as shown in FIG. 7, a working vehicle 51 is composed of a vehicle body 52, a traveling device 53, a working device 54, a tank 55, a pressurizing device 56, and a nozzle 57, and in particular, the tank 55 in which water is stored. A pressurizing device 56 for pressurizing the water is provided on the vehicle body 52, and a nozzle 57 for spraying the pressurized water A from the pressurizing device 56 to the dust generation location B is provided on the working device .

This is an example applied to a backhoe, and the vehicle body 52 forms a basic part of the work vehicle 51 and includes an operator's cab 58 and a prime mover 59 such as an engine.

The travel device 53 is provided on the vehicle body 52 , is of a crawler type, and is rotationally driven by a prime mover 59 .

The working device 54 is provided on the vehicle body 52 , and includes a boom 60 provided on the vehicle body 52 so as to be raised, a boom cylinder 61 for raising the boom 60 with respect to the vehicle body 52 , and a boom 60 provided on the boom 60 so as to be raised. an arm cylinder 63 that raises the arm 62 with respect to the boom 60; a work tool 64 such as a grapple provided on the arm 62; consists of

The tank 55 is provided on the vehicle body 52 to store water. there is

The pressurizing device 56 is provided on the vehicle body 52 to pressurize the water in the tank 55. It is provided on the upper rear side of the bonnet 66 of the vehicle body 52. ), an engine 70 for driving the pump 69, a battery 71 for activating the pump 69, and the like.

The opening/closing cock of the pump 69, the key switch of the engine 70, the throttle lever, and the choke lever are integrated into a control panel and provided in the operator's cab 58, and can be operated from there.

The nozzles 57 are provided in the working device 54 and spray the pressurized water A from the pressurizing device 56 to the dust generating point B. A direction is directed toward the work implement 64 . A hose 72 connects between the nozzle 57 and the opening/closing cock of the pump 69 .

The traveling device 53 causes the vehicle body 52 to travel, and the boom 60, the arm 62, and the working tool 64 of the working device 54 are actuated to perform the work.

Dust is generated when the work is done. The water in the tank 55 is pressurized by the pump 69 of the pressurizing device 56 . The pressurized water A is sprayed from the nozzle 57 through the hose 72 toward the work location, that is, the dust generation location B, which depends on the work tool 64 . As a result, dust diffusion is prevented.

In recent years, at demolition sites in urban areas, narrow sites with no room for work are increasing. A space-saving machine called a small swing type is used as the work machine.

Furthermore, at a private house demolition site, a smaller machine called a mini excavator may be used.

Conventional devices, including those disclosed in Patent Documents 1 to 3, can only be applied to relatively large working machines.

In each of the above Patent Documents 1 to 3, the pump is operated by a motor. In addition, a separate engine is required, and the introduction and maintenance costs are high.

In addition, since the pump and the engine are integrated, the apparatus is not large, and the engine is not easy to start and stop. In particular, the use of the engine (engine 70) of the work machine of Patent Document 1 requires modification because it requires advanced technology such as addition of an output shaft. In Patent Literature 2, the pump and the like are installed at a location different from that of the machine.

Moreover, in Patent Documents 1 and 3, a mount is required for installation on the working machine. Since the mounting conditions differ for each machine, it is not easy to transfer to another machine.

In any of Patent Documents 1 to 3, it is necessary to extend the high-pressure water hose to the nozzle, and there is a risk that high-pressure water will be sprayed to the surroundings when damaged.

In Patent Document 2, the watering nozzle has a large number of parts, a complicated structure, a large size relative to the size of the nozzle, a high introduction cost, and a possibility of failure.

Since the water spray nozzle is fixed to the working machine, it is not easy to remove. In Patent Literature 2, the pump and the like are installed at a location different from that of the machine.

Flying objects are likely to hit the water nozzle, and the nozzle may fall off due to the momentum of the object. A pneumatic circuit is required to drive the rotary actuator. Although the water nozzle can be made detachable, there are many pipes, and workability of detachment is low.

SUMMARY OF THE INVENTION The object of the present invention is to eliminate the disadvantages of the conventional example, and to provide a demolition machine that can be detachably attached to a small working machine, can be easily installed, and has low introduction and maintenance costs. To provide a sprinkler system.

In order to achieve the above object, the present invention as set forth in claim 1 is a high-pressure water spraying device provided in a working machine comprising a boom, an end arm, and a demolition tool, comprising a pump device and a water spraying nozzle at the end of a watering pipe from the pump device. , The pump device contains a hydraulically driven high-pressure pump, a solenoid valve, and electrical parts in a case with a rubber leg attached to the bottom and a handle attached to the top. Attachment to the working machine involves attaching an eyebolt to the working vehicle, fixing the case with a belt, and the nozzle head of the water spray nozzle consists of a small pipe and a nozzle tip, and the mounting holes of the manifold of the nozzle head are all the same. diameter, and the gist is that the manifold is fixed by a magnetic chuck.

According to the first aspect of the present invention, the fine water droplets sprayed from the water spray nozzle of the water sprinkler knock down or moisten the generated dust particles to promote agglomeration of the particles and lose buoyancy. By applying water droplets to the crushed parts, the crushed parts are moistened and the occurrence is suppressed.

By using the hydraulically driven high-pressure pump, the hydraulic pressure of the work machine itself can be used, and the operation control of the device can be easily controlled, and the operation can be performed efficiently.

In addition, since the hydraulically driven high-pressure pump, solenoid valve, and electric parts are included, the size and weight of the device can be reduced.

Especially for installation, it can be easily attached to the work machine by attaching eyebolts to the work vehicle and fixing the case with a belt.

A work machine such as a crane that can be transported by an adult is not required. In addition, the rubber legs eliminate the need for a stand. Non-slip due to the friction between the ground surface and the rubber. It is easy to carry because it has a handle, and it is easy to put on and take off because it is fixed with a belt.

In addition, the number of parts of the water spray nozzle is simplified and the size is reduced. Due to the miniaturization, contact with flying objects during work is reduced. They have the same diameter and can be replaced.

By changing the nozzle tip, you can sprinkle water according to the work situation. By changing the arrangement of the nozzle head, etc., it can be installed according to the machine.

Since it is fixed with a magnetic chuck, it is easy to attach and detach. By changing the arrangement of the nozzle head, etc., it can be installed according to the machine.

The gist of the present invention according to claim 2 is that the hydraulic pump, the hydraulic equipment and the hydraulic oil tank of the working machine are connected to the hydraulically driven high pressure pump by hydraulic hoses.

According to the second aspect of the present invention, the hydraulic pump, hydraulic equipment, and hydraulic oil tank of the working machine are used to drive the hydraulically driven high-pressure pump, so that the size and weight of the apparatus can be further reduced.

The gist of the present invention according to claim 3 is that a one-touch coupler is provided at the connection end of the hydraulic pipe and the sprinkler pipe of the hydraulically driven high-pressure pump.

According to the third aspect of the present invention, the one-touch coupler enables easy and quick connection, and does not require any tools, so installation workability is good.

The gist of the present invention according to claim 4 is that the sprinkler pipe connected to the sprinkler pipe of the pump device is divided by a certain length, and a one-touch coupler is used at the division point.

According to the fourth aspect of the present invention, there is no need to prepare a water spray pipe for each machine, and the length can be adjusted as needed. In addition, since no tools are required, installation workability is good.

As described above, the high-pressure water sprinkler system of the present invention can be detachably attached to a working machine, can be easily installed, and is inexpensive to introduce and maintain.

It is an explanatory view of a demolition work machine to which the sprinkler device of the present invention is attached. BRIEF DESCRIPTION OF THE DRAWINGS It is an external perspective view which shows one Embodiment of the sprinkler apparatus of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is an external perspective view which shows one Embodiment of the sprinkler apparatus of this invention. 1 is an external perspective view showing electrical system wiring in one embodiment of a sprinkler device of the present invention. FIG. It is a perspective view which shows the hose connection state which shows one Embodiment of the sprinkler apparatus of this invention. 1 is a perspective view of a watering nozzle showing an embodiment of a watering device of the present invention; FIG. It is a side view showing a conventional example.

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is an explanatory diagram of a demolition machine equipped with a sprinkler system of the present invention. It involves demolishing a building.

In the figure, 9 is an engine provided inside the working machine, 10 is a hydraulic pump, 11 is hydraulic oil tanks 11 and 12 are hydraulic equipment.

A hydraulic pump 10 is operated by an engine 9 to suck working oil from a working oil tank 11 , pressurize it and supply it to a hydraulic device 12 . The hydraulic equipment 12 is operated by the supplied hydraulic pressure, and the used hydraulic fluid returns to the hydraulic fluid tank 11 .

Hydraulic pump 10 , hydraulic oil tank 11 and hydraulic device 12 are connected by hydraulic hose 13 .

In the figure, reference numeral 14 denotes a battery of the working machine, which supplies electricity to electrical components of the working machine such as an engine control computer and work lights.

The water spraying device 5 of the present invention provided on the working machine body 1 comprises a pump device 6 and a water spray nozzle 16. A water tank 7 is installed on the working machine body 1 and connected to the pump device 6 by a water suction hose 8 for watering. Water is supplied to the pumping device 6 .

Note that the water tank 7 may be installed on the ground. Also, instead of the water tank 7, a water tap may be used.

The pump device 6 and the hydraulic pump 10 are connected by a hydraulic hose 13 to supply hydraulic oil to the pump device 6 .

The pump device 6 and the hydraulic oil tank 11 are connected by a hydraulic hose 13 to return the hydraulic oil used in the pump device 6 to the hydraulic oil tank 11 .

The pump device 6 and the battery 14 are connected by an electric cable 15 , and the battery 14 supplies electricity to the electrical components of the pump device 6 .

The pump device 6 and the water spray nozzle 16 are connected by a water spray pipe (hose) 17, and high-pressure water generated by the pump device 6 is supplied to the water spray nozzle 16 to spray water droplets in the form of fine particles. In the figure, only one watering nozzle 16 is provided, but by branching the watering pipe (hose) 17, a plurality of nozzles can be used.

As shown in FIG. 3, the pump device 6 has a hydraulically driven high-pressure pump 22 as the center, to which a supply-side hydraulic pipe 24 is connected via an electromagnetic valve type on-off valve 23, and a tank return-side hydraulic pipe. 28 are connected.

Hydraulic oil is supplied to the hydraulically driven high-pressure pump 22 from a hydraulic pipe 24 on the supply side.

A water suction pipe 26 and a sprinkling pipe 27 are connected to the hydraulically driven high-pressure pump 22. The water suction pipe 26 is connected to a water suction port 22a of the pump device 6. A water filter 25 filters out foreign matters contained in the water supplied with the water filter 8 connected thereto.

Water is sucked from the water inlet 22 a of the hydraulically driven high-pressure pump 22 by the action of the piston of the pump device 6 and is discharged to the sprinkler pipe 27 .

The pump device 6 contains a hydraulically driven high-pressure pump 22, a solenoid valve type on-off valve 23, and electrical parts in a metal case 40, and includes hydraulic piping 24 on the supply side, hydraulic piping 28 on the tank return side, and watering piping 27. is derived from case 40 above.

A one-touch coupler 29 and a one-touch coupler 30 are provided at the connecting ends of the hydraulic piping 24 and the hydraulic piping 28 on the tank return side and the water sprinkling piping 27 .

The solenoid valve type on-off valve 23 and the hydraulic pump 10 are connected by a hydraulic hose 13 . A one-touch coupler 29 can be easily connected to and removed from the connection.

A hydraulic pipe (tank return side) 28 and the hydraulic oil tank 11 are connected by a hydraulic hose 14 . A one-touch coupler 29 can be easily connected to and removed from the connection.

In FIG. 4, 41 is a switch and cable, 42 is a relay switch, 43 is a fuse, and 44 is a battery cable. When the battery cable 40 is connected to the power supply and the switch 41 is operated, the relay switch 42 is operated.

The electromagnetic valve 23 operates in conjunction with the operation of the relay switch 42, and the valve opens and closes to control the flow of hydraulic oil into the pump.

By preparing sufficient lengths for the battery cable 44 and the switch and cable 41, electricity can be supplied even if the device is installed in a place away from the power source.

The fuse 43 is incorporated in the circuit to prevent damage to electrical parts when an overcurrent flows through the device.

The watering pipe 27 and the watering nozzle 16 are connected by a watering pipe (hose) 17 . A one-touch coupler 30 can be easily connected and detached.

As shown in FIG. 2, a rubber leg 20 is attached to the bottom of a case 40 that houses the pump device. A handle 21 is attached to the top.

An eyebolt 18 is provided on the working machine body 1 in place of the bolt that holds the cover, etc., and the case 40 is placed on the line connecting the two eyebolts 18 and fixed with the belt 19.例文帳に追加

At that time, the case 40 is placed on the work machine main body 1 via the legs 20 .

As shown in FIG. 6, the nozzle head 35 of the watering nozzle 16 is composed of a small pipe 36 and a nozzle tip 37, and all mounting holes of the manifold 32 of the nozzle head 35 have the same diameter. Although one nozzle head 35 is shown in the figure, it is also possible to mount a plurality of nozzle heads.

The nozzle tip 37 jets the high-pressure water in the form of fine droplets. The nozzle tip 37 is detachable, and by replacing it with one having a different shape, it is possible to jet according to the application.

The manifold 32 is fixed to the distal end arm 3 by the magnet chuck 31 with the attractive force of the magnet. Attachment/detachment is performed by operating the lever 31a.

Reference numeral 38 in the drawing denotes bolts for attaching the manifold 32 to the magnetic chuck 31 .

A drain valve 33, a sprinkling pipe fitting 34, a nozzle head 35, and a cap 39 are attached to the manifold 32. - 特許庁Cap 39 is used to fill unused holes in manifold 32 .

A watering pipe (hose) 17 is connected to the watering pipe fitting 34 , and high-pressure water from the hydraulically driven high-pressure pump 22 is supplied to the watering nozzle 16 .

Although illustration is omitted, the watering pipe (hose) 17 connected to the watering pipe 27 of the pump device 6 is divided by a certain length, and a one-touch coupler is used at the division point.

The manifold 32 is provided with a plurality of holes, and by replacing each part, it is possible to configure the manifold 32 according to the working machine and work application.

The drain valve 33 quickly discharges air remaining in the pipe by the hydraulically driven high-pressure pump 22 before the watering work to improve the efficiency of work preparation. After the watering work, the water remaining in the pipe is quickly discharged by the hydraulically driven high-pressure pump 22, and the efficiency of the damage prevention work due to corrosion and freezing of parts due to water is improved.

DESCRIPTION OF SYMBOLS 1... Working machine body 2... Boom 3... Tip arm 4... Dismantling tool 5... Sprinkler 6... Pump device 7... Water tank 8... Water suction hose 9... Engine 10... Hydraulic pump 11... Hydraulic oil tank 12... Hydraulic equipment 13... Hydraulic hose 14 Battery of working machine 15 Electric cable 16 Watering nozzle 17 Watering pipe (hose) 18 Eyebolt 19 Belt 20 Leg 21 Handle 22 Hydraulic driven high pressure pump 22a Water inlet 23 Solenoid valve Type opening/closing valve 24 Hydraulic piping (supply side) 25 Water filter 26 Water absorption piping 27 Sprinkling piping 28 Hydraulic piping (tank return side) 29 One-touch coupler 30 One-touch coupler 31 Magnetic chuck 31a Lever 32 Manifold DESCRIPTION OF SYMBOLS 33... Drain valve 34... Sprinkle pipe mounting bracket 35... Zuru head 36... Small pipe 37... Nozzle tip 38... Bolt 39... Cap 40... Case 41... Switch and cable 42... Relay switch 43... Fuse 44... Battery cable 51... Work vehicle DESCRIPTION OF SYMBOLS 52... Vehicle body 53... Travel apparatus 54... Working apparatus 55... Tank 56... Pressurizing apparatus 57... Nozzle 58... Driver's cab 59... Prime mover 60... Boom 61... Boom cylinder 62... Arm 63... Arm cylinder 64... Working tool 65... Work Cylinder 66 Bonnet 67 Base 68 Frame 69 Pump 70 Engine 71 Battery 72 Hose A Pressurized water B Part where dust is generated

Claims (4)

A high-pressure water sprinkler system consisting of a pump device and a water spray nozzle at the end of a water pipe from the pump device is installed on a working machine consisting of a boom, an end arm, and a demolition tool. A hydraulically driven high-pressure pump, a solenoid valve, and electrical parts are housed in a case with a handle attached to it. The case is fixed with a belt, the nozzle head of the watering nozzle is composed of a small pipe and a nozzle tip, all mounting holes of the manifold of the nozzle head have the same diameter, and the manifold is fixed by a magnetic chuck. high-pressure sprinkler system. 2. The high-pressure water sprinkler system according to claim 1, wherein the hydraulic pump, hydraulic equipment and hydraulic oil tank of the working machine are connected to the hydraulically driven high-pressure pump by hydraulic hoses. 3. The high-pressure water sprinkler system according to claim 1, wherein a one-touch coupler is provided at the connection end of the hydraulic pipe of the hydraulically driven high-pressure pump and the water sprinkler pipe. 4. The high-pressure water sprinkler system according to any one of claims 1 to 3, wherein the sprinkler pipe connected to the sprinkler pipe of the pump device is divided by a certain length, and a one-touch coupler is used at the division point.

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