JP2017064572A - Sprinkler device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sprinkler device which can solve a problem particular to the sprinkler device by an unconventional new structure.SOLUTION: A preferable sprinkler device 100 is provided with a sprinkler 102, a main faucet device 104 mounted on a tap, a hose 106 connecting the sprinkler 102 and the main faucet device 104, and a remote control part 122. The main faucet device 104 includes a water discharge/stop switching part 140 which switches discharge and stop of water by remote control from the remote control part 122. Preferably, the remote control by the remote control part 122 is carried out wirelessly. Preferably, the remote control part 122 is arranged on the sprinkler 102. Preferably, the sprinkler device 100 further includes a low-pressure valve 202 which closes in a low-pressure state. Preferably, the low-pressure valve 202 is arranged on a sprinkler side.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a watering device.

  Watering devices are used for various purposes such as gardening, cleaning, and car washing. Moreover, the watering apparatus which can switch a water discharge shape is known.

  On the other hand, Japanese Patent Laid-Open No. 61-27447 discloses a shower device used in a bathroom. This shower device has means for adjusting hot water temperature and hot water volume, and a shower tube tip integrated with a transmitter that emits a signal modulated by a code according to each adjustment, and a receiver that receives a signal emitted by the transmitter And a hot water supply unit whose hot water temperature and quantity are controlled by a signal from the receiving unit.

Japanese Patent Laid-Open No. 61-27447

  In Japanese Patent Application Laid-Open No. 61-27447, it is not necessary to install a hot water temperature and hot water amount adjusting cock on the wall surface, and the desired shower hot water can be adjusted by hand. On the other hand, in the case of the watering device, there is no circumstance such as construction on the wall surface, and its use is also different from the shower device.

  This inventor repeated earnest examination about the more convenient watering apparatus. As a result, it has been found that the remote operability is applied to the watering device, and thus a new effect different from that of the above-described prior art is produced. Since the watering area is wide in the watering device, handling (handling) and portability are important. In a sprinkler, a relatively long hose may be used, and the weight and volume of the hose deteriorates handling properties, portability, and the like, and restricts the hose storage method. Further, in the watering device, the hose is often pulled toward the watering device, and the hose may be pulled out by pulling the hose while water pressure is applied to the hose. The present inventor has found an effective configuration with respect to the problems specific to the watering device.

  An object of the present invention is to provide a watering device that can solve the problems unique to the watering device with a new configuration that has not been conventionally used.

  A preferable watering device of the present invention includes a watering device, a water faucet device attached to a faucet, a hose connecting the watering device and the water faucet device, and a remote control unit. The former faucet device has a water discharge switching unit that switches between water discharge and water stop by remote operation from the remote operation unit.

  Preferably, the remote operation by the remote operation unit is wireless.

  Preferably, the remote control unit is arranged in the watering device.

  Preferably, the watering device further includes a low pressure valve that closes in a low pressure state. Preferably, this low pressure valve is provided on the water sprinkler side.

  Preferably, the sprinkler has a flow rate adjusting mechanism.

  Preferably, the original faucet device has an automatic valve closing mechanism that closes at a water pressure below a specified value, a water pressure drop above a specified rate of change, or a water pressure above a predetermined value.

In the hose, the internal cross-sectional area when not passing water is A1 (mm ² ), and the internal cross-sectional area when the water pressure is 0.3 MPa is A2 (mm ² ). Preferably, A2 / A1 is 1.1 or more.

  In the hose, the length in the longitudinal direction when not passing water is L1 (m), and the length in the longitudinal direction when a water pressure of 0.3 MPa is applied is L2 (m). Preferably, L2 / L1 is 1.1 or more.

  Preferably, the length L1 in the longitudinal direction of the hose is 5 m or more.

  Preferably, the weight of the hose per 1 m in the longitudinal direction is 0.2 kg / m or less.

  In the above watering device, problems unique to the watering device can be solved by a new configuration that has not been achieved in the past.

FIG. 1 is a perspective view of a watering device according to a first embodiment of the present invention. FIG. 2 is a plan view of a watering device in the watering device of FIG. 1. Fig.3 (a) is a side view of the watering device of FIG. 2, FIG.3 (b) is the figure by which a part of Fig.3 (a) was made into the cross section. FIG. 3A and FIG. 3B show a state where the flow rate is maximum. Fig.4 (a) is a side view of the water sprinkler of FIG. 2, FIG.4 (b) is the figure by which a part of FIG.4 (a) was made into the cross section. 4 (a) and 4 (b) show a state where the flow rate is minimum. Fig.5 (a) is a side view of the water sprinkler of a modification, FIG.5 (b) is the figure by which a part of FIG.5 (a) was made into the cross section. FIG. 5A and FIG. 5B show a state where the flow rate is maximum and the low pressure valve is open. Fig.6 (a) is a side view of the sprinkler of a modification, and FIG.6 (b) is the figure by which a part of FIG.6 (a) was made into the cross section. FIG. 6A and FIG. 6B show a state where the flow rate is minimum and the low pressure valve is open. Fig.7 (a) is a side view of the water sprinkler of a modification, FIG.7 (b) is the figure by which a part of FIG.7 (a) was made into the cross section. FIGS. 7A and 7B show a state where the flow rate is maximum and the low pressure valve is closed. Fig.8 (a) is a side view of the water sprinkler of a modification, FIG.8 (b) is the figure by which a part of FIG.8 (a) was made into the cross section. FIGS. 8A and 8B show a state where the flow rate is minimum and the low pressure valve is closed. FIG. 9 is a side view of a modified water faucet device. FIG. 10 is a plan view of the original faucet device of FIG. FIG. 11 is a cross-sectional view of a part of FIG. FIG. 12A, FIG. 12B, FIG. 12C, and FIG. 12D are diagrams showing changes in the cross-sectional shape of the folding hose. Fig.13 (a) shows the cross section of a general hose, FIG.13 (b), FIG.13 (c) and FIG.13 (d) show the cross section of a flat hose. FIG. 14: is a block diagram of the part which concerns on radio | wireless operation in the watering apparatus of 1st Embodiment. FIG. 15A, FIG. 15B and FIG. 15C are block diagrams of an automatic valve closing mechanism.

  Hereinafter, the present invention will be described in detail based on preferred embodiments with appropriate reference to the drawings.

[First embodiment]
FIG. 1 is a perspective view of a watering device 100 according to a first embodiment of the present invention. The watering device 100 includes a watering device 102, a water faucet device 104, and a hose 106. The original water faucet device 104 is attached to the first end of the hose 106. The sprinkler 102 is attached to the second end of the hose 106. The hose 106 connects the sprinkler 102 and the original faucet device 104. Further, the watering device 100 has a hose accommodating portion 108. In the present embodiment, the hose accommodating portion 108 is a hose reel. Of course, the hose accommodating portion 108 may be omitted.

  In addition, as a hose accommodating part, the hose reel of the structure which winds up the hose 106 to a reel, the hose hanger which hooks and stores a hose, the hose container which accommodates in a container, without winding up a hose, etc. are mentioned. As described above, the hose accommodating portion may not be provided, but the following is preferable when the hose accommodating portion is provided. A hose reel is preferred from the viewpoint of hose storage / removability. On the other hand, a hose hanger is preferable from the viewpoint of housing a hose that is greatly deformed when water flows, such as a folding hose or a telescopic hose.

  The watering device 100 is for outdoor use. The watering device 100 is used by being connected to a faucet. The watering device 100 can be used for applications such as horticulture, cleaning, car washing, and watering.

  The faucet means an outlet portion of a pipe that supplies water such as tap water. The connection between the faucet and the main faucet device is preferably a connector connection in which the faucet side and the main faucet device side are connected using a connector. In this connector connection, a configuration in which the first connector is provided in the faucet and the second connector is provided in the main faucet device, and the first connector and the second connector are connected is preferable. Moreover, it is preferable that the connection of both connectors is realized by pressing one of the connectors into the other to connect the two connectors to each other. Moreover, it is preferable that the connection structure of both these connectors has a holding mechanism which can hold | maintain the said connection state. The first connector may be provided integrally with the faucet, or may be separate from the faucet and detachably or non-removably attached to the faucet. Each of the second connectors may be provided integrally with the original faucet device, or is separate from the original faucet device and is detachably or non-removably attached to the original faucet device. May be. In addition to the above connector connection, a connection by screw connection between a male screw and a female screw, a connection by fixing with a bolt / nut, a connection by tightening with a fixing band, etc. can be used. Is the most preferred configuration.

  In the watering device 100, there is one sprinkler 102, one original faucet device 104, and one hose 106. In the watering device 100, the water sprinkler 102 and the original water faucet device 104 correspond to each other. There may be a plurality of sprinklers 102 for one original faucet device 104. In this case, it is preferable that there are a plurality of hoses 106.

  The original water faucet device 104 is connected to the hose 106 via the connector 110. The sprinkler 102 is connected to the hose 106 via the connector 112. Note that the connector 110 and the connector 112 may be omitted.

  The original faucet device 104 is connected to a faucet. The water supplied from the faucet reaches the sprinkler 102 via the original faucet device 104 and the hose 106. Water is discharged from the sprinkler 102.

  FIG. 2 is a plan view of the sprinkler 102. The sprinkler 102 has a water introduction port 114, a discharge port 116, and a grip portion 118. Typically, the user holds the grip part 118 by hand and performs watering.

  The sprinkler 102 has a water shape changing mechanism. FIG. 2 shows the water shape changing operation unit 120. The water shape changing operation unit 120 can be operated with a finger, for example. The watering device 102 is configured such that the water channel is switched by the operation of the water shape changing operation unit 120 and the water shape is changed. In this embodiment, a straight water shape or a shower water shape can be selected.

  The discharge port 116 of the sprinkler 102 has a plurality of water discharge holes. For example, the discharge port 116 includes a straight water discharge hole that performs straight water discharge and a shower water discharge hole that performs shower water discharge. Although there may be a plurality of straight water discharge holes, it is preferable that there is one. There must be a plurality of shower spout holes.

  If the positions of the water discharge holes are separated from each other, as a result, the sprinkler becomes larger or heavier. From this point of view, when the linear distance connecting the center positions of the holes (planar area centroids) is L, L between the water discharge holes is preferably 20 cm or less, more preferably 10 cm or less, and particularly preferably 6 cm or less. . The center position of the hole means the center of gravity (centroid) of the figure formed by the outline of the hole.

  The discharge port can be configured to be movable with respect to the main body of the sprinkler, such as rotating at the time of water discharge. In this case, however, the sprinkler becomes larger or heavier. From this viewpoint, it is preferable that the discharge port is fixed to the main body of the watering device. In addition, fixation here means that it is not movable with respect to the sprinkler main body at the time of water discharge. It is preferable that the discharge port is detachably or non-detachably attached to the sprinkler body.

The discharge port may be composed of a sponge member having a large number of fine holes. However, in this configuration, the micropores are easily clogged with algae. From this viewpoint, the discharge port is a plate-like member, and preferably includes a plurality of water discharge holes arranged to be connected from the inner surface side to the outer surface side of the plate-like member. The average value of the cross-sectional areas of all the water discharge holes is 0.3 mm ² or more, more preferably 1 mm ² or more, particularly 2 mm ² or more, and the upper limit is 10 mm ² or less, further 6 mm ² or less, particularly 4 mm ² or less. It is good to do. The cross-sectional area of the hole may differ depending on the position of the hole in the axial direction. For example, there is a hole whose diameter increases toward the outer surface. In such a case, the cross-sectional area of the hole is the maximum value.

When the sectional area of each of the shower water discharge holes is S, the following is preferable. In 50% or more of all the shower water discharge holes, S is preferably 0.3 mm ² or more, more preferably 0.5 mm ² or more, and particularly preferably 1 mm ² or more. In 80% or more of all the shower water discharge holes, it is more preferable that S is 0.3 mm ² or more, further 0.5 mm ² or more, particularly 1 mm ² or more. In all shower water discharge holes (100%), S is more preferably 0.3 mm ² or more, more preferably 0.5 mm ² or more, and particularly preferably 1 mm ² or more.

  The sprinkler 102 has a remote control unit 122. The remote control unit 122 can operate switching between water discharge and water stop in the main faucet device 104. The remote control unit 122 has a first button b1 for instructing water discharge and a second button b2 for instructing water stoppage. The button-type remote control unit 122 is preferable because it is easy to switch between water discharge and water stop.

  More specifically, the remote operation unit 122 includes an instruction unit 123. The instruction unit 123 includes a water discharge instruction unit 124 and a water stop instruction unit 126. Although not shown, the remote control unit 122 further includes a transmission unit. The water discharge instruction unit 124 has the first button b1, and the water stop instruction unit 126 has the second button b2. When the first button b1 is pressed, the transmission unit transmits a signal (water discharge instruction signal) for setting the water faucet device to a water discharge state. The former faucet device 104 that has received this water discharge instruction signal is switched to the water discharge state. This water discharge instruction signal is transmitted by wireless communication. When the second button b2 is pressed, the transmission unit transmits a signal (water stop instruction signal) for setting the original water faucet device to a water stop state. The main faucet device 104 that has received this water stop instruction signal switches to a water stop state. This water stop instruction signal is transmitted by wireless communication. Thus, the remote operation unit 122 includes a transmission unit that enables wireless remote operation. A typical example of the remote control unit is a so-called remote controller. The configuration of the remote control unit 122 is the same as that of a known wireless remote controller. The sprinkler 102 has a power supply (not shown) for performing the transmission. This power source is, for example, a battery.

  FIG. 3A is a side view of the watering device 102, and FIG. 3B is a cross-sectional view of the watering device 102. FIG. 3A and FIG. 3B show a state where the flow rate is maximum. FIG. 4A is a side view of the watering device 102, and FIG. 4B is a cross-sectional view of the watering device 102. FIG. 4A and FIG. 4B show a state where the flow rate is minimum.

  The sprinkler 102 has a flow rate adjusting mechanism. The flow rate adjustment mechanism includes a flow rate adjustment operation unit 130 and a flow rate adjustment valve 132. The flow rate adjustment valve 132 can adjust the flow rate in the water channel 134. The flow rate adjustment operation unit 130 constitutes a lever, and by operating this lever, the degree of opening of the flow rate adjustment valve 132 changes. As shown in FIG. 3B, when the lever 130 is tilted forward most, the flow rate adjustment valve 132 is fully opened. As shown in FIG. 4B, when the flow rate adjustment operation unit 130 is tilted most rearward, the flow rate adjustment valve 132 is in a state where the flow rate is minimum.

  The original water faucet device 104 includes a spouting water switching unit 140 and a faucet connection unit 142 that performs connection with the faucet (see FIG. 1). In the spouting water switching unit 140, switching between water spouting and water stopping is possible by remote operation from the outside.

  The water stoppage switching unit 140 of the present embodiment includes a receiving unit that receives a signal from the transmission unit, an on-off valve, and a control unit that can control the on-off valve. The receiving unit receives the water discharge instruction signal and the water stop instruction signal described above from the transmission unit of the remote operation unit 122. When the receiving unit receives the water discharge instruction signal, the control unit opens the on-off valve. When the receiving unit receives the water stop instruction signal, the control unit closes the on-off valve. In this way, the on-off valve opens and closes according to instructions from the remote control unit 122.

  In this embodiment, this on-off valve is a solenoid valve. A solenoid valve is a type of electrically driven valve. Using a magnetic force of an electromagnet (solenoid), an iron piece called a plunger is moved to open and close the valve. Water shut-off is achieved by closing this solenoid valve. Water discharge is achieved by opening this solenoid valve. A known solenoid valve is used.

  The original water faucet device 104 has a power source (not shown). The electric power from this power source is supplied to the spouting water switching unit 140. This electric power is used to open and close the on-off valve. The power source is, for example, a battery.

  The original water faucet device 104 does not have a flow rate adjusting mechanism. The flow rate adjustment is performed only by the sprinkler 102. Remote operation of the main faucet device 104 is limited to switching between water stop and water discharge.

  FIG. 5A is a side view of a sprinkler 200 that is a modification, and FIG. 5B is a cross-sectional view of the sprinkler 200. FIGS. 6A, 7 </ b> A, and 8 </ b> A are also side views of the watering device 200. FIG. 6B is a cross-sectional view corresponding to FIG. FIG. 7B is a cross-sectional view corresponding to FIG. FIG. 8B is a cross-sectional view corresponding to FIG.

  5A and 5B, the flow rate adjustment mechanism is in a fully open state, and the check valve 202 (described later) is open. 6 (a) and 6 (b), the flow rate adjusting mechanism is in a state where the flow rate is minimum, and the check valve 202 is open. In FIG. 7A and FIG. 7B, the flow rate adjusting mechanism is in a fully open state, and the check valve 202 is closed. In FIG. 8A and FIG. 8B, the flow rate adjusting mechanism is in a state where the flow rate is minimum, and the check valve 202 is closed.

  When the original water faucet device is in the water stop state, the water pressure decreases and the check valve 202 closes. Regardless of the degree of adjustment by the flow rate adjustment mechanism, the check valve 202 is closed when the original faucet device is in a water stop state (see FIGS. 7B and 8B).

  When the original faucet device is in a water discharge state, the check valve 202 is opened. Regardless of the degree of adjustment by the flow rate adjustment mechanism, the check valve 202 is open when the main faucet device is in a water discharge state (see FIGS. 5B and 6B).

  The check valve 202 includes a valve body 204, an elastic body 206, and a valve seat 208. The valve seat 208 is located downstream of the valve body 204. The elastic body 206 urges the valve body 204 toward the valve seat 208. However, this force is very weak. When water is discharged from the sprinkler 200, the check valve 202 is open. When the original water faucet device is in a water stop state and the water pressure is lowered, the elastic body 206 presses the valve body 204 against the valve seat 208 and closes the valve.

  The flow rate adjusting mechanism cannot make the flow rate zero. Even if the flow rate adjusting mechanism is adjusted to the position where the flow rate is minimized, the water cannot be stopped. That is, the sprinkler 200 does not have a water stop mechanism. The sprinkler 200 does not have a spout water switching mechanism. The water stop is made only by the original faucet device.

  As each sectional view shows, the sprinkler 200 has a check valve 202. Except for the presence of the check valve 202, the sprinkler 200 is the same as the sprinkler 102 described above.

  The check valve 202 is an example of a low pressure valve that closes in a low pressure state. The check valve 202 is opened by the water pressure at the time of water discharge. The check valve 202 does not prevent the water sprayer 200 from discharging water. On the other hand, when the water faucet device 104 is in a water stop state and the water pressure acting on the check valve 202 becomes low, the check valve 202 is closed. The low-pressure valve (check valve 202) is preferably set so as to close when the main water faucet device stops water. From this point of view, this low pressure valve (check valve 202) is preferably closed only at a fairly low water pressure.

  9 and 10 are side views of an original faucet device 300 which is a modified example. 9 and 10 differ from each other in view point by 90 °. FIG. 11 is a cross-sectional view taken along line F11-F11 in FIG. FIG. 11 is a cross-sectional view corresponding to FIG.

  As shown in FIG. 11, the main faucet device 300 includes a faucet connection part 302, a relief valve 304, a pressure reducing valve 306, a manual valve 308, and a discharge water switching part. The spouting water switching unit has an electromagnetic valve 310. The electromagnetic valve 310 is an open / close valve that opens and closes in response to an instruction from the discharge water switching unit.

  As described above, the main faucet device 300 has the relief valve 304. The relief valve 304 plays a role of releasing water and reducing the water pressure when the water pressure rises excessively.

  As shown in FIGS. 10 and 11, the relief valve 304 includes a tubular part 400, a plug body 402, an elastic body 404, and an elastic body holding part 406. The tubular portion 400 forms a discharge port branched from the flow path of the original faucet device 300.

  The tubular part 400 has a slit 408. The slit 408 is provided along the longitudinal direction of the tubular portion 400. A part of the plug 402 enters the slit 408, and the plug 402 slides along the slit 408. The plug 402 has an O-ring 410 for ensuring water tightness. The elastic body 404 urges the plug body 402 upstream. In the present embodiment, the elastic body 404 is a coil spring. The elastic body holding portion 406 is attached to the end portion of the tubular portion 400. In the present embodiment, the elastic body holding portion 406 is a cap and is fixed to the end portion of the tubular portion 400 by screws. The elastic body holding part 406 supports the first end of the elastic body 404. The second end of the elastic body 404 is in contact with the plug body 402.

  When the water pressure is less than the predetermined value, the plug body 402 holds the water stop position on the upstream side by the urging of the elastic body 404. Therefore, the relief valve 304 is in a water stop state. When the water pressure exceeds a predetermined value, the plug body 402 is pushed downstream against the urging force of the elastic body 404, and the plug body 402 moves downstream. When the plug 402 moves to a position where the water stop by the O-ring 410 is released, the relief valve 304 is in a drained state, and water is discharged. This discharge of water reduces the water pressure. When the water pressure becomes less than a predetermined value, the plug body 402 returns to the water stop position by the urging of the elastic body 404.

  As described above, the original water faucet device 300 has the pressure reducing valve 306. The pressure reducing valve 306 plays the role of lowering the water pressure below a predetermined value. Therefore, the water pressure applied to the hose and the sprinkler downstream from the pressure reducing valve 306 is suppressed to a predetermined value or less.

  As shown in FIG. 11, the pressure reducing valve 306 includes a movable valve 500, a packing 502, an elastic body 504, and a case 506. The packing 502 is attached to the movable valve 500 and moves together with the movable valve 500. The elastic body 504 is a coil spring. The elastic body 504 biases the movable valve 500 to the downstream side. Case 506 is fixed to outer case 508. A flow path is formed at the center of the case 506. The case 506 supports the first end of the elastic body 504. The second end of the elastic body 504 is in contact with the movable valve 500.

  FIG. 11 shows the pressure reducing valve 306 in the low pressure state. In this low pressure state, the movable valve 500 and the packing 502 are located on the most downstream side. The pressure reducing valve 306 is configured such that when the water pressure exceeds a predetermined value, the movable valve 500 is pushed upstream due to the water pressure. Due to the high pressure state, the movable valve 500 and the packing 502 move upstream. By this movement, the gap between the end portion of the case 506 and the packing 502 is narrowed, and pressure reduction is achieved.

  As described above, the main faucet device 300 has the manual valve 308. As shown in FIGS. 10 and 11, the manual valve 308 includes an operation unit 600 and a ball valve 602. The operation unit 600 is rotated by the user. The ball valve 602 rotates integrally with the operation unit 600. In FIG. 11, the ball valve 602 is in a fully open state. When the operation unit 600 is rotated 90 degrees, the ball valve 602 is fully closed, and water stoppage is achieved.

  As described above, the main faucet device 300 includes the electromagnetic valve 310. The solenoid valve 310 includes a solenoid, a plunger, a pilot valve hole, a valve body, a coil spring, a diaphragm back chamber, a diaphragm, and a main valve seat. The plunger is driven by a solenoid. A valve element is provided at the end of the plunger, and this valve element opens and closes the pilot valve hole. When the solenoid is not energized, the plunger is pushed down by the coil spring, and the valve body closes the pilot valve hole. In this case, water flows into the diaphragm back chamber, and the diaphragm is pressed against the main valve seat by the fluid pressure generated by the inflow. Therefore, the solenoid valve is closed. On the other hand, when the solenoid is energized, the plunger is pulled up against the coil spring, the valve body is separated from the pilot valve hole, and the pilot valve hole is opened. As a result, the pressure in the diaphragm back chamber decreases, and the diaphragm moves away from the main valve seat. Therefore, the solenoid valve is opened. The electromagnetic valve 310 is a known pilot type electromagnetic valve. Other systems such as a direct acting solenoid valve may be used.

  Although not shown, the spout water switching unit of the main faucet device 300 includes a receiving unit that receives a signal from the transmitting unit and a control unit that can control the electromagnetic valve 310. The receiving unit receives the water discharge instruction signal and the water stop instruction signal. When the receiving unit receives the water discharge instruction signal, the control unit energizes the solenoid, and the solenoid valve opens. When the receiving unit receives the water stop instruction signal, the control unit deenergizes the solenoid and closes the solenoid valve.

  The original water faucet device 300 does not have a flow rate adjustment mechanism. The flow rate is adjusted only by a sprinkler. The remote operation of the water faucet device 300 is limited to switching between water stop and water discharge.

  The original water faucet device 300 has a power source 700. In the present embodiment, a battery is employed as the power source 700. This battery is arranged in a power supply case (not shown) attached to the main body of the main faucet device 300, for example. The electric power of the power source 700 is supplied to the spout water switching unit. The electric power of the power source 700 drives the electromagnetic valve 310.

[Effects of performing water stop with the original faucet device]
In a sprinkler, many effects are acquired by performing water stop with a main faucet device. This effect is as follows, for example.
(A) When switching between water stop and water discharge is performed by a water sprinkler, a high water pressure (water pressure of the waterworks) acts on the hose when the water stops. In this sprinkler, water is stopped by the original faucet device, so the burden on the hose is reduced. For this reason, the freedom degree of selection of a hose increases, for example, a hose can be made into a non-withstand pressure specification. For this reason, a lightweight and compact watering device is obtained. In addition, the cost of the hose can be reduced.
(B) Since the connection portion can be made to have a non-withstand pressure specification, a lightweight and compact watering device can be obtained also from this viewpoint. A connection part is a connection part of a faucet and a main faucet device, a connection part of a main faucet device and a hose, and a connection part of a hose and a water sprinkler. For example, it is possible to simplify the connector 110 and the connector 112 (FIG. 1) or to omit these connectors.
(C) It is easy to carry the watering device when taking it home after purchase or preparing watering.
(D) Since it is possible to employ a hose that is easy to store, the number of options for storing the hose increases. For example, the range of reel designs is expanded.
(E) Since the staying water staying in the hose when not in use is suppressed, freezing breakage is suppressed, and the odor from the staying water is also suppressed.
(F) When water is stopped with a sprinkler, water pressure is applied to the hose in the water stop state. If the sprinkler is pulled in this state, the hose is likely to come off, and it may be difficult to store the hose in a reel or the like, or it may be difficult to pull out the hose. Such a phenomenon is improved in this watering apparatus.
(G) Since the water stop function in a sprinkler becomes unnecessary, the cost of a sprinkler can be reduced.
(H) Even if the hose is damaged due to deterioration of the hose or the like when left unused, water is not leaked from the damaged portion because the water is stopped by the original water faucet device. Therefore, waste of water is prevented.

[Suppression of disconnection of connection part]
The water sprinkler has two connections. The first connection portion is a connection portion between the original faucet device and the hose. A 2nd connection part is a connection part of a hose and a sprinkler. In the sprinkler, there are many opportunities to pull or move the hose due to the movement of the sprinkler, and there are also many opportunities for disconnection at the connection. Note that the disconnection of the connecting portion means that the connection of the connecting portion is released. This release of connection means disconnection of the hose, but when a connector is used, it includes disconnection of only the connector or disconnection of the hose from the connector.

  In the conventional watering device, since switching between water stop and water discharge is performed by the water sprinkler, a high water pressure (water pressure of the waterworks) acts on the hose at the time of water stoppage. This water pressure loads the hose as well as the two connections. These loads facilitate disconnection.

  In the above-mentioned watering device, since water stop is performed by the original water faucet device, a high water pressure does not act on the hose at the time of water stop. Therefore, the load on the two connecting portions is small. Since the load on the connecting portion is reduced, the structure of the connecting portion can be simplified. For example, the connector structure can be simplified. A sprinkling device can be reduced in weight by the connection part of a simple structure, and the handleability of a sprinkler improves.

[Hose type]
As a kind of hose, all kinds of hoses such as a multi-layer hose such as a single-layer hose and a double-layer hose, a threaded hose, a coiled hose, a flexible hose, a folding hose, and a flat hose can be used. An elastic tube such as a bellows tube can also be used as a hose. A telescopic hose may be used.

  The material of the single layer hose is polyvinyl chloride resin, silicone resin, polyethylene resin, rubber or the like. Simple structure and low manufacturing cost. However, the pressure resistance is low and the deformation at high water pressure is large.

  A threaded hose is a hose reinforced with fibers. This threaded hose is small in deformation at high water pressure and has excellent pressure resistance. The coil hose is a hose reinforced by a coil. The material of the coil is resin, metal or the like. This coil hose is small in deformation at high pressure and has excellent pressure resistance.

[Folding hose]
The folding hose is a hose that can be folded. This folding hose is flattened when water is not passed through it. A typical folding hose is made of cloth, and the inside of the cloth is coated with a non-water-permeable layer. The folding hose is also known as a fire hose.

  FIGS. 12A to 12D are cross-sectional views showing the folding hose 800. The material of the folding hose 800 is cloth, and a non-water-permeable layer is formed on the inner surface of the cloth. Examples of the material for the non-water-permeable layer include rubber and resin. When the water pressure is low, the folding hose 800 is substantially flat as shown in FIG. When the water pressure is high, the cross-sectional structure of the folding hose 800 is circular as shown in FIG. Due to the water pressure, the cross-sectional shape of the folding hose 800 takes a form as shown in FIGS.

  The folding hose 800 has a first portion 802 that constitutes a half of the hose cross section and a second portion 804 that constitutes the other half of the hose cross section. At both end portions in the width direction of the folding hose 800, a bonding portion 806 in which the first portion 802 and the second portion 804 are overlapped is provided. By these bonded portions 806, the folding hose 800 becomes flat when not passing water.

  Thus, the folding hose 800 is configured such that the cross-sectional shape when not passing water is flatter at both ends in the width direction than when passing water (for example, when the water pressure is 0.3 MPa). . In the folding hose 800 of the present embodiment, the bonding portion 806 is employed, but a crease may be employed instead. A well-known fire hose structure may be employed for the folding hose of the present application.

As described above, the preferred folding hose has the following characteristics.
(1) When not passing water, the hose can be flattened in a state where the internal cross-sectional area A1 is zero.
(2) It has a bent portion that promotes flattening at both ends in the width direction. The above-mentioned bonded portion and fold are examples of the bent portion.

[Flat hose]
A flat cross-sectional shape can also be adopted in a shape retaining hose that is not a folding hose. A hose that maintains a flat shape even under water pressure is referred to as a flat hose in the present application. The flat cross-sectional shape contributes to the improvement of storage property. FIGS. 13A to 13D are examples of the cross-sectional shape of the shape retaining hose. A hose 810 in FIG. 13A is a normal circular cross-section hose. FIGS. 13B to 13D are cross sections of the flat hose. In the flat hose, the height is smaller than the width in the cross-sectional shape with a water pressure of 0.3 MPa. In the hose 812 shown in FIG. 13B, three water channels are provided. In the hose 814 in FIG. 13C, two water channels are provided. By providing a plurality of water channels, the cross-sectional area of the water channel can be enlarged in a flat cross-sectional shape. In the hose 816 in FIG. 13D, the cross-sectional shape of the water channel is also flat. This is also an example of a configuration that enlarges the cross-sectional area of the water channel in a flat cross-sectional shape.

[Expandable hose]
In the present application, the telescopic hose means a hose whose length in the longitudinal direction extends 1.5 times or more when a water pressure of 0.3 MPa is applied. That is, when the length in the longitudinal direction at the time of non-water passage is L1, and the length in the longitudinal direction in the state where the water pressure of 0.3 MPa is applied is L2, the hose with L2 / L1 of 1.5 or more is Defined as telescopic hose. L2 / L1 is preferably 2 or more, more preferably 2.5 or more, and still more preferably 3 or more. L2 / L1 is usually 8 or less, and further 6 or less.

  This stretchable hose has a double tube structure. More specifically, the stretchable hose has an inner tube made of an elastic material, and an outer tube that is less stretchable than the inner tube. The inner tube and the outer tube are fixed to each other only at both ends. Outside the both ends, the inner tube and the outer tube are not fixed to each other. In other words, the inner tube and the outer tube are free from each other at both ends. The tube structure may be triple or more.

  A preferred material for the outer tube is cloth. The material of this cloth is one or more selected from the group consisting of nylon, polyester and polypropylene, for example. Preferably, the fabric is a woven fabric. The material of the inner tube is, for example, natural latex rubber. This stretchable hose automatically extends in the longitudinal direction when water pressure is applied, and automatically contracts in the longitudinal direction when the water pressure disappears.

  The outer tube is supple. The outer tube has a size that allows the inner tube to expand and stretch when in the stretched state. Therefore, the outer tube is in a relaxed state in the contracted state where the water pressure is zero. In the contracted state, the outer tube has a large number of wrinkles. On the other hand, the inner tube has high elasticity. The inner tube contracts in the thickness direction when the water pressure is zero, and extends in the longitudinal direction. When water pressure acts, the inner tube expands in the thickness direction and extends in the longitudinal direction. In particular, the elongation in the longitudinal direction is remarkable. As the water pressure increases, the expansion and elongation increase, but these expansion and elongation are constrained by the size of the outer tube. Therefore, the upper limit of L2 / L1 can be regulated by the maximum length of the outer tube. Examples of such stretchable hoses are described in Japanese Patent Nos. 5541825 and 5399595.

  This stretchable hose can be used as the hose of the present invention. The inner tube of the stretchable hose is made of a material having extremely high stretchability. For this reason, the inner tube basically has poor pressure resistance and is easily broken. In the above watering device, since water is stopped by the original water faucet device, it is possible to prevent high pressure from acting on the hose when water is stopped. Therefore, the load on the elastic hose can be reduced, and the inner tube can be prevented from being broken by high pressure.

  When using the watering device, the water faucet device may be switched to water discharge (with water discharge turned ON) in a state where the water sprayer is pulled. In this case, the water pressure rises rapidly in the state where the hose is pulled, so that the sprinkler is likely to come off from the hose. However, when a stretchable hose is used, the hose is stretched by the water pressure, so the tension acting on the hose is relaxed. For this reason, detachment of the watering device from the hose can be suppressed. Of course, detachment of the hose in the original faucet device is also suppressed.

[Hose pressure resistance]
In the watering device in which water is stopped in the original water faucet device, the hose can be non-pressure resistant. For example, the minimum water pressure at which the hose can be broken can be 0.7 MPa or less. By allowing a hose with low pressure resistance, the hose can be made lighter and the flexibility of the hose can be increased.

[Generation of algae in the hose]
The accumulated water inside the hose causes algae to be generated. In particular, when the above-described low-pressure valve is provided, generation of algae can be a problem because water tends to stay in the hose. A hose suitable for the present invention such as a non-pressure-resistant hose has a simple structure such as a single-layer hose. This simple structure hose tends to transmit sunlight relatively easily. Also, the hose suitable for the present invention can be made relatively thin. For example, the thickness (measured at a temperature of 20 ° C.) of the hose in the absence of water pressure can be 1.0 mm or more and 2.5 mm or less. This thin hose tends to transmit sunlight relatively easily. In such a hose, generation of algae in the hose can be a problem. The grown algae cause clogging of the sprinkler outlet (shower hole, etc.).

  The degree of expansion due to water pressure and the degree of extension in the longitudinal direction due to water pressure differ depending on the hose. Such deformation of the hose due to expansion and stretching has the effect of peeling off the algae that started to occur on the inner surface of the hose from the inner surface, and as a result, the generation of algae can be suppressed (algae suppression effect).

  A hose having one or more layers and at least one layer being black may be used. In this hose, the black layer can serve as a blocking layer that makes it difficult for light to pass into the hose. Therefore, generation | occurrence | production of algae itself can be prevented.

From the viewpoint of light shielding, the indexes L ^* , a ^*, and b ^* in the CIELAB display system are considered in the above black color. From the viewpoint of light shielding properties, the black index L ^* is preferably 50 or less, more preferably 40 or less, more preferably 30 or less, and more preferably 25 or less. From the viewpoint of light shielding properties, the index a ^* is preferably 5 or less, more preferably 3 or less, and more preferably 2 or less. From the viewpoint of light shielding properties, the index b ^* is preferably 5 or less, more preferably 3 or less, and more preferably 2 or less.

The indices L ^* , a ^* and b ^* are calculated by the following mathematical formula.
L ^* = 116 (Y / Yn) ¹ / 3-16
a ^* = 500 ((X / Xn) ¹ /3-(Y / Yn) ^1/3 )
b ^* = 200 ((Y / Yn) ¹ /3-(Z / Zn) ^1/3 )
In these mathematical formulas, X, Y, and Z are tristimulus values in the XYZ display system, and Xn, Yn, and Zn are tristimulus values on the perfect diffuse reflection surface. The CIELAB display system is a standard determined in 1976 by the International Commission on Illumination (CIE). In Japan, the CIELAB display system is adopted in “JIS Z 8729”. L ^* is a lightness index. a ^* and b ^* are indices that correlate with hue and saturation. The negative direction of a ^* is the green direction, and the positive direction is the red direction. The negative direction of b ^* is the blue direction, and the positive direction is the yellow direction. The index is measured with a color difference meter “CM-3500d” manufactured by Minolta. The light receiving part is applied to the surface of the object (black layer), and measurement is performed. “Standard light D ₆₅ ” is adopted as the light source. The color temperature of this light source is 6504k. As the spectral sensitivity, “2 ° field of view” is adopted. As the hole diameter, 8 mm is adopted.

[Change rate of internal cross section of hose]
A hollow portion is formed inside the hose, and water passes through the hollow portion. The internal cross-sectional area of the hose is the cross-sectional area of this hollow portion. As the water pressure increases, the hose swells and the internal cross-sectional area increases.

  The internal cross-sectional area when not passing water is A1, and the internal cross-sectional area when the water pressure is 0.3 MPa is A2. When the ratio (A2 / A1) is large, the hose is particularly likely to come out of the above-described disconnection of the connecting portion. This is because the connection between the hose and other members is likely to be disconnected due to expansion deformation of the hose. Therefore, when A2 / A1 is likely to expand greatly, the present watering apparatus capable of suppressing the water pressure to the hose is effective from the viewpoint of suppressing the hose disconnection. Furthermore, when A2 / A1 is large, the above-mentioned algae suppression effect increases. From these viewpoints, A2 / A1 is preferably 1 or more, more preferably 1.1 or more, more preferably 1.2 or more, and still more preferably 3 or more. Considering the durability of the hose, A2 / A1 is preferably 50 or less, more preferably 40 or less, and still more preferably 30 or less. In measuring the rate of change of the internal cross-sectional area of the hose, the temperature of the hose is set to 20 degrees.

[Hose internal cross-sectional area A1]
Suppressing the pressure loss at the time of water spray, in order to ensure the watering amount, the internal cross-sectional area A1 of the hose is preferably 19.6 mm ² or more, more preferably 38.5 mm ² or more, 63.6 mm ² or more and more preferably . Improves the maneuverability of the hose, from the viewpoint of downsizing the sprinkler system, the internal cross-sectional area A1 of the hose is preferably 707Mm ² or less, more preferably 491mm ² or less, more preferably 254 mm ² or less, and more is 177 mm ² or less preferable.

[Inner diameter of hose]
From the viewpoint of suppressing pressure loss during water spraying and securing the amount of water sprayed, the inner diameter of the hose is preferably 5 mm or more, more preferably 7 mm or more, and more preferably 9 mm or more. From the viewpoint of improving the manageability of the hose and downsizing the watering device, the inner diameter of the hose is preferably 30 mm or less, more preferably 25 mm or less, more preferably 18 mm or less, and more preferably 15 mm or less.

[Change rate of hose length]
The length change rate of the hose is the above-mentioned L2 / L1. When L2 / L1 is large, the hose is particularly likely to come out of the above-described disconnection of the connecting portion. This is because the hose and other members are easily disconnected due to the expansion and deformation of the hose. Therefore, when L2 / L1 is easy to extend greatly, the present watering apparatus capable of suppressing the water pressure to the hose is effective from the viewpoint of suppressing the hose disconnection. Furthermore, when L2 / L1 is large, the above-mentioned algae suppression effect increases. From these viewpoints, L2 / L1 is preferably 1.0 or more, more preferably 1.1 or more, more preferably 1.5 or more, and further preferably 2.0 or more. Considering the durability of the hose, L2 / L1 is preferably 5.0 or less, more preferably 4.0 or less. However, the above-described stretchable hose is an exception regarding this upper limit. In the measurement of the length L1 and the length L2, the temperature of the hose is set to 20 degrees.

  This watering device that stops water with the original faucet device has a high degree of freedom in selecting the hose. Therefore, the degree of freedom in selecting A2 / A1, L2 / L1, bending rigidity, etc. is also high. Based on the above reason, A2 / A1, L2 / L1, bending rigidity, etc. can be set appropriately.

[Hose length (longitudinal length) L1]
From the viewpoint of convenience in watering outdoors, the length L1 in the longitudinal direction of the hose when not passing water is preferably 5 m or more, more preferably 7 m or more, and even more preferably 10 m or more. As described above, the load on the hose is reduced by stopping the water with the water faucet device. Therefore, the freedom degree of selection of a hose increases. For example, a non-pressure-resistant hose can be employed, and a light hose can be employed. The longer the hose, the greater the overall weight of the hose and the more effective the hose weight reduction. Also from this viewpoint, the length L1 in the longitudinal direction of the hose is preferably 5 m or more. From the viewpoint of downsizing and handling of the watering device, the length L1 in the longitudinal direction of the hose is preferably 100 m or less, more preferably 80 m or less, and even more preferably 50 m or less.

[Hose weight (per unit length)]
As described above, the load on the hose is reduced by stopping the water with the water faucet device. Therefore, a non-pressure-resistant hose can be employed and a light hose can be employed. In this respect, the weight of the hose per 1 m in length is preferably 0.2 kg / m or less, more preferably 0.1 kg / m or less, and further preferably 0.05 kg / m or less. In consideration of strength, the hose weight is preferably 0.01 kg / m or more, and more preferably 0.02 kg / m or more. In this weight measurement, the temperature of the hose is 20 degrees. This weight is measured in the absence of water in the hose.

[Stop water switching part]
As described above, the spout water switching unit is provided in the original faucet device. Preferably, the sprinkler is not provided with a spout water switching unit. In other words, the watering device preferably does not have a water stop function.

  The spouting water switching unit performs switching between water stopping and water spouting by remote operation. Since the remote operation is possible, the water faucet device does not have to have an operation unit for operating the spout water switching unit. On the other hand, the original water faucet device may have an operation unit that operates the spout water switching unit. That is, in addition to remote control, the water faucet device may be capable of switching the discharge water. In this case, even when the remote operation is disabled for some reason, it is possible to switch the water discharge.

  The point where the remote operation is performed is not limited, and may be a point other than the original faucet device. Preferably, the point where the remote operation is performed is a sprinkler.

[Remote control unit]
The remote control unit operates the spitting water switching unit by remote control. A typical example of the remote control unit is a wireless remote controller. If this remote control unit can be carried alone, remote control can be performed from any point. Furthermore, this remote control unit may be detachable from the watering device. In this case, remote control can be performed from the water sprinkler, and remote control can be performed from a point other than the sprinkler.

  The remote control unit is not limited to a wireless remote controller. The remote operation may be wired or wireless. In the wired remote operation, for example, an electric wire is used. In this case, the electric wire is provided so as to be connected to the remote control unit and the spouting water switching unit. Other embodiments include mechanical remote operation using, for example, a wire. The lever which operates this wire may be provided in the watering device or the watering device side as a remote control part. In this case, a wire is provided so as to connect the remote control unit and the spouting water switching unit. The wire may be provided along the hose.

  Like the watering device 102 described above, the remote control unit may be fixed to the watering device in a non-removable state. For example, the remote control unit may be built in the watering device. In this case, fixing of the remote operation unit is ensured, and the operability of the remote operation unit is enhanced. Moreover, it becomes easy to improve the waterproofness of the watering device containing a remote control part.

  A remote control unit (such as a remote controller) may not be attached to the watering device. In this case, it is easy to lose the remote control unit. From this viewpoint, it is preferable that the remote control unit is detachable from the water sprinkler, or is fixed to the water sprinkler in a non-removable state.

  When the remote control unit is a wireless remote controller, a known remote controller configuration can be used. Ultrasonic waves and electromagnetic waves are exemplified as signals for wireless operation. Examples of electromagnetic waves include radio waves and infrared rays.

[Wireless remote control]
Preferably, the remote control unit operates the spout water switching unit wirelessly. Preferably, the spouting water switching unit is operated wirelessly by the remote control unit.

  FIG. 14 is a block diagram illustrating an example of a configuration when a wireless system is employed. The above-mentioned watering device 100 also employs the configuration shown in FIG.

  The remote operation unit 1000 includes a transmission unit 1002 and an instruction unit 1004. On the other hand, the spouting water switching unit 1006 includes a receiving unit 1008, a control unit 1010, and an on-off valve 1012.

  The instruction unit 1004 includes a water discharge instruction unit and a water stop instruction unit. When the water discharge instruction unit is operated, the transmission unit 1002 wirelessly transmits a signal (water discharge instruction signal) for setting the original faucet device to the water discharge state. The water discharge instruction signal is received by the receiving unit 1008 of the water discharge switching unit 1006. When the receiving unit 1008 receives the water discharge instruction signal, the control unit 1010 opens the on-off valve 1012. When the water stop instruction unit is operated, the transmission unit 1002 wirelessly transmits a signal (water stop instruction signal) for setting the water faucet device to a water stop state. The water stop instruction signal is received by the reception unit 1008 of the water discharge switching unit 1006. When the receiving unit 1008 receives the water stop instruction signal, the control unit 1010 closes the on-off valve 1012.

  As shown by the watering device 100 described above, the spout water switching unit 1006 is provided in the original faucet device. On the other hand, the remote control unit 1000 may be provided in the watering device, or may be provided in other than the watering device. That is, the remote control unit 1000 may be separated from the sprinkler 102. The remote control unit 1000 may be detachable from the watering device. The remote control unit 1000 may be fixed to the watering device so as not to be detached.

[Low pressure valve]
A preferred sprinkler has a low pressure valve. An example of the low pressure valve is the check valve 202 described above. When water is stopped by the main water faucet device, the water pressure in the hose does not immediately become zero, and a residual water pressure is generated. This residual water pressure is generated, for example, by contraction of a hose that has expanded due to water pressure. Due to this residual water pressure, the water remaining in the hose leaks out so that the water drops from the sprinkler. It is not preferable that water is discharged in spite of the water stop operation because it is unintentional water discharge. The low pressure valve can suppress leakage after the water stop operation.

  When the low pressure valve is closed when the water pressure is P1 (MPa) or less, the preferable value of the water pressure P1 is as follows. From the viewpoint of suppressing leakage water, the water pressure P1 is preferably 0.01 (MPa) or more, and more preferably 0.02 (MPa) or more. From the viewpoint of not disturbing a small amount of water discharge, the water pressure P1 (MPa) is preferably 0.05 (MPa) or less, and more preferably 0.04 (MPa) or less.

  From the viewpoint of suppressing leakage water after the water stop operation, the low pressure valve is preferably provided on the sprinkler side. This “sprinkler side” includes a sprinkler and is a broader concept than a sprinkler. In the present application, the “watering device side” means a portion upstream of the midpoint in the longitudinal direction of the hose, and a concept that may include a hose, a watering device, a connector provided between the hose and the watering device, and the like. It is. The midpoint in the longitudinal direction of the hose is a point that bisects the longitudinal length of the hose. The boundary point that defines the “sprinkler side” is also referred to as a boundary point. The “water sprinkler side” is a portion upstream of this boundary point. Preferably, this boundary point is a point having a distance of 1 m from the second end of the hose. More preferably, this boundary point is a point whose distance from the second end of the hose is 0.5 m. More preferably, this boundary point is a point whose distance from the second end of the hose is 0.3 m. The closer the low pressure valve is to the discharge port, the more effective the suppression of leakage water. As described above, the second end of the hose means an upstream end of both ends of the hose.

  More preferably, the low-pressure valve is disposed not in the hose but in the sprinkler or the connector from the viewpoint of enhancing the leakage water suppressing effect. In the sprinkler 200 described above, the low pressure valve 202 is disposed in the sprinkler. When a connector is provided between the hose and the sprinkler, a low pressure valve may be provided on this connector. In this case, it is only necessary to replace the connector even when the low-pressure valve fails. From the viewpoint of the effect of suppressing leakage water, the low pressure valve should be as close as possible to the discharge port. From this point of view, the low pressure valve is preferably provided in the watering device.

[Flow adjustment mechanism]
When the flow adjustment mechanism is provided in the main faucet device, a hose is interposed from the main faucet device to the water sprinkler, so that a time lag occurs before the adjusted flow rate is reflected in the water discharge. By providing the flow rate adjusting mechanism in the sprinkler, the time lag is prevented, and the adjusted flow rate is immediately reflected in the water discharge. An easy-to-use watering device is realized because of the quick response to the flow rate adjustment.

  The flow rate adjusting mechanism attached to the sprinkler 102 described above cannot make the flow rate zero. In the watering device 100 described above, the watering device 102 cannot stop water. The water stop is performed only by the main faucet device 104. That is, switching between water discharge and water stop is performed only by the main faucet device 104. The flow rate adjustment mechanism may have a water stop function, but preferably the flow rate adjustment mechanism does not have a water stop function.

  The flow rate adjusting mechanism should be provided in the watering device and not provided in the main faucet device. However, it is also possible to provide the flow rate adjusting mechanism in the original water faucet device and not in the sprinkler. It is also possible to provide a flow rate adjusting mechanism in both the main faucet device and the water sprinkler. In this case, it is preferable that the flow rate adjusting mechanism of the original water faucet device can be remotely operated from the sprinkler, similarly to the water discharge switching unit described above.

  When the flow rate adjusting mechanism is provided in the original faucet device without being provided in the sprinkler, there is an advantage that the sprinkler can be further reduced in weight and size. However, as described above, when the flow rate is adjusted with the original faucet device, there is a problem that the time lag increases in the flow rate adjustment. From this point of view, it is preferable to provide the flow rate adjusting mechanism in the sprinkler, and most preferable to provide the flow rate adjusting mechanism in the sprinkler and not in the main faucet device.

[Automatic valve closing mechanism]
The former faucet device may have an automatic valve closing mechanism. Examples of conditions for operating this automatic valve closing mechanism include the following.
-(Condition 1): The valve is closed at a water pressure not exceeding the specified value X1.
-(Condition 2): The valve closes when the water pressure drops below the specified rate of change X2.
-(Condition 3): The valve is closed at a water pressure of the specified value X3 or more.

  For some reason, the hose may be damaged. For example, the hose can be damaged by being stepped on the hose that is left unattended. In addition, the hose can be damaged by deterioration over time. In such a case, water leakage from the hose occurs. If it is possible to automatically close the valve by detecting a drop in water pressure due to this water leakage, waste of water can be prevented.

  The specified value X1 of the condition 1 is set to a value lower than the water pressure (eg, 0.3 MPa) acting on the hose during normal water discharge. By setting condition 1, water leakage from the damaged hose can be prevented.

  From the viewpoint of suppressing water leakage, the specified value X1 is preferably 0.01 (MPa) or more, and more preferably 0.02 (MPa) or more. From the viewpoint of not hindering a small amount of water discharge, the specified value X1 is preferably 0.05 (MPa) or less, and more preferably 0.04 (MPa) or less.

  FIG. 15A is a block diagram of an automatic valve closing mechanism 1100 that operates under condition 1. FIG. The automatic valve closing mechanism 1100 includes a water pressure sensor (low pressure sensor) 1102 and a control unit 1104. A known water pressure sensor 1102 can be used. When the water pressure sensor 1102 detects a water pressure equal to or lower than a predetermined value, the control unit 1104 closes the on-off valve (solenoid valve) 1106 of the original water faucet device.

  When the hose is damaged during the water discharge, the water pressure in the hose can drop rapidly. Condition 2 is effective in such a case. The specified rate of change in condition 2 can be set to a value that does not occur in normal use. This specified rate of change (absolute value) is set to 0.03 MPa / second or more, for example.

  FIG. 15 (b) is a block diagram of an automatic valve closing mechanism 1200 that operates under condition 2. The automatic valve closing mechanism 1200 includes a water pressure sensor 1202, a calculation unit 1204, and a control unit 1206. A known water pressure sensor 1202 can be used. When the calculation unit 1204 calculates a water pressure drop equal to or higher than a specified rate of change based on the data of the water pressure sensor 1202, the control unit 1206 closes the open / close valve (electromagnetic valve) 1208 of the original water faucet device.

  From the viewpoint of suppressing malfunction, the specified value X2 of the condition 2 is preferably 0.03 (MPa) or more, and more preferably 0.05 (MPa) or more. From the viewpoint of enhancing the detectability, the specified value X2 is preferably 0.2 (MPa) or less, and more preferably 0.15 (MPa) or less. The specified value X2 is an absolute value of the change rate.

  For some reason, the water pressure in the water supply may increase. It is conceivable that the hose having a low pressure resistance is damaged by an abnormal high pressure. The automatic valve closing mechanism of the above condition 3 can prevent such a situation.

  The specified value X3 of the condition 3 is set to a value higher than the water pressure (for example, 0.3 MPa) acting on the hose during normal water discharge.

  From the viewpoint of suppressing malfunction, the specified value X3 of the condition 3 is preferably 0.4 (MPa) or more, and more preferably 0.45 (MPa) or more. From the viewpoint of enhancing the detectability, the specified value X3 is preferably 0.6 (MPa) or less, and more preferably 0.55 (MPa) or less.

  FIG. 15C is a block diagram of an automatic valve closing mechanism 1300 that operates under the condition 3. The automatic valve closing mechanism 1300 includes a water pressure sensor (high pressure sensor) 1302 and a control unit 1304. A known water pressure sensor 1302 can be used. When the water pressure sensor 1302 detects a water pressure equal to or higher than a predetermined value, the control unit 1304 closes the open / close valve (solenoid valve) 1306 of the original water faucet device.

[Pressure reducing valve]
The original water faucet device may have a pressure reducing valve. An example of the pressure reducing valve is the pressure reducing valve 306 described above. The hose can be made into a non-water resistant specification by stopping the water with the water faucet device and not with the watering device. However, the water pressure in the water supply may be higher than expected. Even when an unexpectedly high water pressure is generated by the pressure reducing valve, the water pressure applied to the hose can be suppressed.

[Relief valve]
The original water faucet device may have a relief valve. An example of this relief valve is the aforementioned relief valve 304. As described above, this relief valve can prevent an excessively high pressure state. This relief valve serves to prevent damage to the original faucet device due to freezing. In a cold district or the like, the water in the pipe may freeze and the volume of the water may expand, rupturing the pipe or the like. This relief valve can prevent the original faucet device from rupturing when water freezes.

[Manual valve]
The original water faucet device may have a manual valve. An example of this manual valve is the manual valve 308 described above. Although the original water faucet device has a spout water switching unit, the spout water switching unit may not function for some reason. In this case, for example, failure of the remote operation unit, battery exhaustion in the remote operation unit, radio transmission radio disturbance, failure of the water stoppage switching unit, battery exhaustion in the water stoppage switching unit, and the like can be considered. In such cases, a manual valve is useful. The manual valve can turn off the water faucet device in an emergency.

[Power supply]
Preferably, the original water faucet device has a power source. The electric power from this power supply is supplied to the spouting water switching unit. Preferably, the remote control unit has a power source. When the remote control unit is provided in the watering device, the watering device preferably has a power source. The electric power from this power source is supplied to the remote control unit.

  An example of the power source is a battery. Examples of the battery include a chemical battery and a physical battery. Examples of the chemical battery include a primary battery and a secondary battery. Examples of the primary battery include a dry battery, a lithium battery, and a button battery. Examples of the secondary battery include a nickel-cadmium battery, a nickel metal hydride battery, and a lithium ion battery. A solar cell is illustrated as a physical battery. Since the watering device is used outdoors, it is suitable for solar power generation. On the other hand, dirt and wetness become a problem outdoors. In this respect, since the solar cell does not require an opening / closing part for battery replacement, it is preferable in that it is easy to obtain a seamless specification (completely waterproof specification).

  Another example of the power source is a generator. The miniaturized generator can be provided in the main faucet device and the remote control unit. Examples of the generator include a hydroelectric generator and a wind power generator. A preferred hydroelectric generator has a mechanism for turning the generator using the flow of discharged water.

  When a battery is used as the power source, a battery exhaustion detection unit that detects a voltage drop of the battery may be provided. For example, in the case of a battery having a rated voltage of DC 3.0 V, the end-of-battery detection unit has a termination voltage in the range of DC 1.8 V or more and DC 2.0 V or less. In consideration of using up the power of the battery, the voltage detected by the battery exhaustion detection unit is preferably DC1.8V. Considering supply of a stable voltage, the voltage detected by the battery exhaustion detection unit is preferably DC 2.2V or more and DC 2.4V or less. From such a viewpoint, it is preferable that the voltage detected by the battery depletion detection unit be in the range of 60% to 80% of the rated voltage. Moreover, it is also preferable that the battery exhaustion detection part provided in the former water faucet device detects, for example, the minimum voltage Vx necessary for opening and closing the on-off valve (electromagnetic valve). In this case, it is preferable that the voltage detected by the battery depletion detection unit is in the range of Vx or more and [1.2 × Vx] or less.

  For example, the battery exhaustion detection unit may be provided in the remote control unit, may be provided in the watering device, or may be provided in the main faucet device. Preferably, the battery exhaustion detection unit is provided in the remote operation unit. Preferably, when the battery depletion detection unit of the remote operation unit detects a voltage that has decreased to a predetermined value, the transmission unit of the remote operation unit transmits a water stop instruction signal. As described above, it is preferable that the water faucet device is stopped when it is detected that the battery of the remote control unit has run out. Preferably, the water stop instruction signal is transmitted by wireless communication.

[Automatic water stop transmitter]
The water sprinkler may have an automatic water stop transmission unit that automatically transmits a water stop signal to the water discharge switching unit of the water faucet device when the hose is detached from the water sprinkler. This automatic water stop transmission unit includes, for example, a detection unit that detects that a hose or a connector has come off from the sprinkler, and a transmission unit. When the detection unit detects disconnection, the transmission unit transmits a water stop instruction signal. Preferably, the transmission of the water stop instruction signal is wireless communication. For example, the detection unit mechanically detects the disconnection of the hose or the connector.

[Auxiliary water stop mechanism, sprinkler water switching part]
A water stop mechanism may be provided in the sprinkler. That is, an auxiliary water stop mechanism may be provided in the watering device. This auxiliary water stop mechanism is useful when the remote control unit or the water discharge switching unit of the main faucet device fails. In this case, from the viewpoint of preventing breakage of the hose, the auxiliary water stop device may be automatically opened when the water pressure acting on the hose in a water stop state becomes a predetermined value or more.

  However, as described above, from the viewpoint of reducing the load on the hose, it is preferable not to provide a water stop mechanism in the sprinkler. Although the water sprayer may be provided with an auxiliary water stop mechanism, the auxiliary water stop mechanism preferably does not stop completely. For example, it is preferable that the auxiliary water stop mechanism has a bypass flow path and is configured so that complete water stop cannot be performed by the bypass flow path.

  The auxiliary water stop mechanism of the sprinkler may be a spout water switching unit. This spouting water switching unit may be a manual type. The spout water switching unit may be configured to be remotely operated. In other words, in this spouting water switching unit, switching between water spouting and water stopping may be possible by the remote control unit. This remote operation unit may be the same as the remote operation unit that operates the spout water switching unit of the original faucet device, or may be separate. The spout water switching unit of the sprinkler may have the same configuration as the spout water switching unit of the original faucet device.

  When the spout water switching unit of the sprinkler can be remotely operated, preferably, the spout water switching unit preferably includes a receiving unit that receives a signal from the transmission unit of the remote control unit, an on-off valve, and the on-off valve. You may have a control part which can be controlled. The reception unit receives a water stop instruction signal from the transmission unit of the remote control unit. When the receiving unit receives the water stop instruction signal, the control unit closes the on-off valve. Thus, this on-off valve opens and closes according to instructions from the remote control unit. Preferably, this on-off valve is a solenoid valve.

  From the viewpoint of reducing the load on the hose, it is preferable to provide a water stop switching unit in the original faucet device and not to provide a water stop switching unit in the watering device. However, it is also possible to provide a spouting water switching unit in both the main faucet device and the sprinkler. The spout water switching unit of the sprinkler can be used for water stoppage when the remote operation from the sprinkler to the main faucet device is out of order or when a power failure occurs.

  In the case of providing a spout water switching unit in the sprinkler, this spout water switching unit may be provided by adding a water stop function to the above-described flow rate adjustment mechanism, or may be provided separately from the flow rate adjustment mechanism. Good.

When a water stop function is added to the flow rate adjustment mechanism of the sprinkler, it is preferable that the flow rate adjustment mechanism has a configuration that allows the user to sense the flow increase / decrease operation and the water stop operation. The following (x) and (y) are exemplified as the configuration of such a flow rate adjusting mechanism.
(X) A configuration that requires a larger force than the operation for increasing or decreasing the flow rate when operating the flow rate adjusting operation unit from the operation position where the flow rate can be increased or decreased to the operation position for stopping water.
(Y) A configuration in which the operation direction when stopping water is different from the operation direction when increasing or decreasing the flow rate.

The flow rate adjusting mechanism preferably has the following configuration (z).
(Z) It has the display part which shows that it is water stop operation, and this display part is arrange | positioned so that a user can recognize from the exterior.

  With these configurations (x), (y), and (z), when a remote operation from the sprinkler to the main faucet device fails or the power is cut off, the user stops the water for the purpose of emergency measures. It becomes easy to perform.

  In a sprinkler having a spouting water switching unit different from the flow rate adjusting mechanism, the operation unit of the spouting water switching unit is preferably an operating unit different from the operating unit of the flow rate adjusting mechanism. In this case, it is preferable that the sprinkler has a display unit that allows the user to recognize from the outside that it is a spout water operation unit. As a result, it becomes easy for the user to stop the water for the purpose of emergency measures or the like when a remote operation from the water sprinkler to the main faucet device or a power failure occurs.

  However, if the water stop is performed by the original water faucet device, the above-described effects can be obtained. Therefore, it is the most preferable configuration that the sprinkler is not provided with the spout water switching unit.

  As above-mentioned, the single remote control part may be able to operate the spout water switching part of a water sprinkler, and the spout water switching part of a former faucet device. In this case, the water stop operation by the remote control unit may be in two stages. The water faucet device may be stopped by the first water stop operation in the remote control unit, and the water sprinkler may be stopped by the second water stop operation. Since the water faucet device is stopped first, the load on the hose can be reduced. Further, both the water faucet device and the water sprinkler may be stopped by a single water stop operation by the remote control unit. In this case, an increase in the internal pressure of the hose can be prevented by a single operation. In addition, when both the main faucet device and the water sprinkler are stopped by a single water stop operation by the remote control unit, the time difference (time lag) between the water stop of the main faucet device and the water stop of the water sprinkler There may be. In this case, it is preferable from the viewpoint of reducing the hose load that the water faucet device is stopped first.

[timer]
The remote control unit may include a timer that automatically transmits a water stop instruction signal when a predetermined time has elapsed. In this case, the remote control unit includes a timer and a transmission unit. When the timer detects that a predetermined time has elapsed, the transmission unit transmits a water stop instruction signal.

  The start time of the timer is, for example, the time when the water discharge instruction signal is transmitted. The predetermined time may be a fixed fixed time, or may be settable by the user. By making the user settable, compatibility with the usage environment is enhanced. A situation where the water discharge state is forgotten and left unattended is a water reservoir in a bucket or the like. In consideration of the water saving effect in consideration of this point, the predetermined time is preferably about 1 minute. On the other hand, when water is sprayed over a wide area, if the automatic water stop frequently occurs, the usability deteriorates. Considering this point, the predetermined time is preferably about 10 minutes. Considering these comprehensively, the predetermined time of the timer is preferably 1 minute or more and 10 minutes or less. In addition, when the water sprinkler has a remote control part, since it can switch from water stop to water discharge at hand, even if it stops automatically without intention, it is easy to return to water discharge. In consideration of the usability and the water saving effect in consideration of this point, the predetermined time is more preferably 3 minutes or more, and more preferably 5 minutes or less.

  The original water faucet device may have a timer. This timer may be an on-timer, an off-timer, or both an on-timer and an off-timer. The off-timer switches the water discharge to the water stop after the predetermined time has elapsed. The on-timer switches the water stoppage to the water discharge after the predetermined time has elapsed. It is preferable that the time of the user's timer can be set.

  The sprinkler may be provided with a hook. This hook allows the sprinkler to be hooked on something or hung. For example, if a sprinkler can be hooked on the end of a long stick, it can be easy to sprinkle water in a place where the user cannot enter. For example, watering on a rooftop or a dangerous place can be facilitated.

  Hereinafter, the effects of the present invention will be clarified by examples. However, the present invention should not be construed in a limited manner based on the description of the examples.

[Example 1]
An outdoor watering test was performed using the watering device 100 of the first embodiment described above. The original faucet device 104 was attached to the tap of the water supply. In the initial setting, the main water faucet device 104 was in a water stop state. The user pressed the first button b1 (the water discharge instruction unit 124) of the remote operation unit 122 with the thumb of the hand holding the grip unit 118 while holding the grip unit 118 of the sprinkler 102. Then, the open / close valve of the original water faucet device 104 was opened, and water was discharged from the discharge port 116 via the hose 106. Even when the main water faucet device 104 is in a water discharge state, the sprinkler 102 is always in a water passage state, so that the load on the hose 106 is small. Next, the user pressed the second button b2 (water stop instruction unit 126) of the remote control unit 122. Then, the open / close valve of the main faucet device 104 was closed, and the supply of water to the hose 106 was stopped. As a result, water discharge from the sprinkler 102 stopped. However, for a while (several seconds) after the opening / closing valve of the main faucet device 104 was closed, a part of the remaining water remaining in the hose 106 was leaked from the sprinkler 102. Since the original water faucet device 104 was closed, water pressure did not act on the hose 106 in the water stop state.

[Example 2]
An outdoor watering test was performed in the same manner as in Example 1 except that the watering device 102 of the watering device 100 was replaced with the watering device 200 described above. When the second button b2 (water stop instruction unit 126) of the remote control unit 122 was pushed after watering, the open / close valve of the main faucet device 104 was closed, and the check valve 202 was closed. Due to the effect of the check valve 202, the leakage water hardly occurred.

  From these results, the superiority of the present invention is clear.

  In the present application, other inventions different from the invention according to the independent claims are also described. Respective forms, members, configurations, and combinations thereof described in the claims and embodiments of the present application are recognized as inventions based on the respective functions and effects.

  Each form, member, configuration, etc. shown in each of the above embodiments is not limited to all of the forms, members, or configurations of these embodiments. It can be applied to all described inventions.

  The watering device described above can be used for all purposes such as horticulture, cleaning, and car washing.

DESCRIPTION OF SYMBOLS 100 ... Water sprinkler 102 ... Water sprinkler 104 ... Former water faucet device 106 ... Hose 108 ... Hose accommodating part 110 ... Grasping part 120 ... Water shape change operation part 122 ... Remote control unit 130 ... Flow rate adjustment operation unit 200 ... Sprinkler 202 ... Check valve 300 ... Original faucet device 304 ... Relief valve 306 ... Pressure reducing valve 308 ... Manual Valve 310 ... Solenoid valve 800 ... Folding hose

Claims (10)

A sprinkler,
An original faucet device attached to the faucet,
A hose connecting the sprinkler and the original faucet device;
A remote control unit;
With
The watering device in which the former water faucet device has a spouting water switching unit that switches between water spouting and water stopping by remote control from the remote control unit.   The watering device according to claim 1, wherein the remote operation by the remote operation unit is wireless.   The watering device according to claim 1 or 2, wherein the remote control unit is arranged in the watering device. A low pressure valve that closes in a low pressure state;
The watering apparatus in any one of Claim 1 to 3 with which this low pressure valve is provided in the water sprinkler side.   The watering device according to any one of claims 1 to 4, wherein the watering device has a flow rate adjusting mechanism.   The water spray according to any one of claims 1 to 5, wherein the water faucet device has an automatic valve closing mechanism that closes at a water pressure below a specified value, a water pressure drop above a specified rate of change, or a water pressure above a predetermined value. apparatus. In the hose, when the internal cross-sectional area when water is not passed is A1 (mm ² ) and the internal cross-sectional area when the water pressure is 0.3 MPa is A2 (mm ² ),
The watering device according to any one of claims 1 to 6, wherein A2 / A1 is 1.1 or more. In the hose, when the length in the longitudinal direction at the time of non-water passage is L1 (m), and the length in the longitudinal direction in a state where a water pressure of 0.3 MPa is applied is L2 (m),
L2 / L1 is 1.1 or more, The watering apparatus in any one of Claim 1 to 7.   The watering device according to any one of claims 1 to 8, wherein the length of the hose in the longitudinal direction is 5 m or more.   The watering device according to any one of claims 1 to 9, wherein a weight of the hose per 1 m in the longitudinal direction is 0.2 kg / m or less.

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