JP5869938B2 - Water discharge restriction device - Google Patents

Description

  The present invention relates to a water discharge restriction device such as a water discharge gun.

  Various conventional devices equipped with water guns, such as those that repeatedly move left and right using the water flow for water discharge, those that move the nozzle manually up and down and left and right, and those that drive them electrically Is known (see, for example, Patent Document 1).

Japanese Patent Publication No. 48-35807

  These devices need to pressurize water using a pump or the like for water discharge, but are not pressurized at all times, so even if the pump is started at the time of water discharge, the water discharge pressure reaches a certain level until it reaches a predetermined pressure. Takes time. In addition, many water spray guns have an open nozzle, and water discharge starts immediately after the pump is started. However, the water discharge pressure is insufficient until the water discharge pressure reaches a predetermined pressure. Therefore, there was a problem that a desired water discharge pattern and flight distance could not be obtained.

  In particular, when the installation location is a cultural property such as a shrine or a Buddhist temple, the water discharge from the water gun designed for the roof cannot be obtained immediately after the start of water discharge or immediately after the pump is stopped. The water could be discharged, causing damage to valuable cultural assets, such as damage and contamination.

  Therefore, an object of the present invention is to provide a water discharge restriction device such as a water discharge gun that restricts water discharge of a water discharge gun or the like until the water discharge pressure reaches a predetermined pressure.

The present invention is a water discharge restriction device that is attached to a water discharge gun or the like and restricts the water discharge gun or the like to discharge water at a predetermined water discharge pressure. The water discharge restriction device detects a water discharge pressure of the water discharge gun or the like. A pressure detection unit, a deflector unit that covers the water discharge unit such as the water discharge gun and prevents water discharge, and a deflector control unit that moves the deflector unit from the water discharge unit when the water discharge pressure of the water discharge gun reaches a predetermined pressure water discharge restriction device der, characterized in that it comprises a is, for example, the deflector portion, the water drainage pressure, such as the water cannon is water discharge from the water discharge unit such as the water cannon to reach a predetermined pressure It is a water discharge restriction device which is a deflector part which covers the water discharge part so that it may hit.

  Further, according to the present invention, the pressure detection unit detects a pressure water pressure introduced into the water spray gun or the like, and the deflector control unit detects a pressure water pressure introduced into the water spray gun or the like to a predetermined pressure. The water discharge restriction device is characterized in that when the pressure reaches the pressure water, the deflector is moved from the water discharge section by the pressure water pressure.

  Further, according to the present invention, the pressure detection unit detects a pressure water pressure introduced into the water spray gun or the like, and the deflector control unit detects a pressure water pressure introduced into the water spray gun or the like to a predetermined pressure. The water discharge restriction device is characterized by moving the deflector city from the water discharge section by electric drive when reaching the value.

  Further, according to the present invention, the pressure detection unit includes a pilot valve that opens and closes by pressure applied to the pressure sensing unit, a pressure signal pipe that branches the pressure water introduced into the water discharge gun and the like, and flows into the pilot valve. The deflector control unit includes a cylinder into which the pressure water flows, a piston in the cylinder that is moved by the pressure water that has flowed into the cylinder, and a piston that is in the cylinder, A spring that biases the pressure water in a direction against the pressure of the pressure water, and an arm portion that is connected to the piston and moves the deflector portion by movement of the piston, and the pressure signal pipe includes the water discharge After branching from the gun, etc., further branch, one is connected to the pressure sensitive part of the pilot valve, the other is further branched, one end is to the valve part of the pilot valve The other end is connected to the cylinder, and the pilot valve is normally open, and closes when the pressure water becomes equal to or higher than the predetermined discharge pressure, and when the pilot valve closes, The water discharge restriction device according to claim 1, wherein the pressurized water flows in and moves the deflector part from the water discharge part.

  Further, according to the present invention, the pressure detection unit has one inflow port and two discharge ports, a pilot valve that switches a flow path according to pressure applied to the pressure sensing unit, and pressure water introduced into the water discharge gun or the like. And a pressure signal pipe that branches into the pilot valve, and the deflector control unit includes a cylinder into which the pressure water flows, and the pressure water that is in the cylinder and flows into the cylinder. A piston that moves in the cylinder, and a spring that urges the piston in a direction against the pressure of the pressure water, and is connected to the piston, and the deflector is moved by the movement of the piston. An arm portion, and the pressure signal pipe branches from the water discharge gun and the like, and further branches, one connected to the pressure sensing portion of the pilot valve and the other to the front The pilot valve is connected to the inlet of the pilot valve, the pilot valve is connected to the cylinder at one end of the discharge port, and normally opens a flow path to the drain side, and the pressure water is the predetermined discharge pressure. If it becomes above, a flow path will be switched to the flow path to the said cylinder, the said pressurized water will flow in in the said cylinder, and the said deflector part will be moved from the said water discharge part, It is a water discharge limiting apparatus characterized by the above-mentioned.

  Further, in the present invention, the pressure detection unit is introduced into a pressure switch that is turned on / off by a pressure applied to the pressure sensing unit, an electric valve that opens and closes based on an on / off signal of the pressure switch, and the water discharge gun. And a pressure signal pipe for branching the pressure water to flow into the pressure switch and the motor-operated valve, and the deflector control unit is in the cylinder into which the pressure water flows, and in the cylinder, A piston that is moved by the pressure water flowing into the cylinder, a spring that is in the cylinder and biases the piston in a direction against the pressure of the pressure water, and is connected to the piston and moves the piston And the pressure signal pipe is further branched after branching from the water gun, etc., one of which is the pressure Connected to the pressure-sensitive portion of the switch, the other is further branched, one end is connected to the valve portion of the motor-operated valve, the other end is connected to the cylinder, and the motor-operated valve is normally open, The water discharge is closed when the pressure water becomes equal to or higher than the predetermined water discharge pressure, and when the motor-operated valve is closed, the pressurized water flows into the cylinder to move the deflector part from the water discharge part. Device.

  According to the present invention, the pressure detection unit includes a pressure switch that is turned on / off by pressure applied to the pressure sensing unit, one inflow port, and two discharge ports, and is based on an on / off signal of the pressure switch. An electric valve for switching the flow path, and a pressure signal pipe for branching the pressure water introduced into the water discharge gun and the like to flow into the pressure switch and the electric valve, and the deflector controller A cylinder into which water flows, a piston in the cylinder that is moved by the pressure water that has flowed into the cylinder, and a cylinder that is in the cylinder and resists the pressure of the pressure water. An urging spring; and an arm part connected to the piston and moving the deflector part by movement of the piston, wherein the pressure signal pipe is the water gun or the like After branching, further branching is performed, one is connected to the pressure sensitive part of the pressure switch, the other is connected to the inlet of the motor-operated valve, and the motor-operated valve has one end of the discharge port connected to the cylinder. Connected, the flow path to the drainage side is normally opened, and when the pressure water becomes equal to or higher than the predetermined discharge pressure, the flow path is switched to the flow path to the cylinder, and the pressurized water flows into the cylinder. And it is a water discharge limiting device characterized by moving the deflector part from the water discharge part.

  Further, according to the present invention, the pressure detection unit includes a pressure sensor that measures a pressure applied to the pressure measurement unit, an electric valve that opens and closes based on a measurement value of the pressure sensor, and a pressure water that is introduced into the water spray gun or the like. A pressure signal pipe that branches into the pressure sensor and the motor-operated valve, and the deflector control unit is located in the cylinder into which the pressure water flows, and flows into the cylinder. A piston that is moved by the pressure water, a spring that is in the cylinder and urges the piston in a direction against the pressure water pressure, and is connected to the piston, and the deflector moves by the movement of the piston. And the pressure signal pipe is further branched after branching from the water gun etc., one of which is the pressure measuring part of the pressure sensor. The other is further branched, one end is connected to the valve portion of the motor-operated valve, the other end is connected to the cylinder, the motor-operated valve is normally open, and the pressure water is supplied to the predetermined valve The water discharge restriction device is closed when the pressure becomes equal to or higher than the water discharge pressure, and when the motor-operated valve is closed, the pressurized water flows into the cylinder and moves the deflector portion from the water discharge portion.

  According to the present invention, the pressure detection unit includes a pressure sensor that measures a pressure applied to the pressure measurement unit, one inflow port, and two discharge ports, and the flow path is formed based on the measurement value of the pressure sensor. An electric valve for switching, and a pressure signal pipe for branching the pressure water introduced into the water discharge gun and the like to flow into the electric valve, the deflector control unit includes a cylinder into which the pressure water flows, A piston in the cylinder that moves with the pressure water flowing into the cylinder; a spring in the cylinder that biases the piston in a direction against the pressure of the pressure water; And an arm part that moves the deflector part by movement of the piston, and the pressure signal pipe further branches after branching from the water gun, etc. Connected to the pressure measuring section of the sensor, the other is connected to the inlet of the motor-operated valve, and the motor-operated valve has one end of the discharge port connected to the cylinder, and the flow path to the drain side is normally open. When the pressure water becomes equal to or higher than the predetermined water discharge pressure, the flow path is switched to the flow path to the cylinder, the pressurized water flows into the cylinder, and the deflector section is moved from the water discharge section. This is a water discharge limiting device.

  Further, according to the present invention, the pressure detection unit branches the pressure switch that is turned on / off by the pressure applied to the pressure sensing unit, and the pressure water introduced into the water gun, etc., and the pressure sensing unit of the pressure switch And the deflector control unit includes an arm unit that moves the deflector unit by a motor, and moves the deflector unit from the water discharge unit when the pressure switch is turned on. Is a water discharge limiting device characterized by

  Further, according to the present invention, the pressure detection unit branches a pressure sensor for measuring a pressure applied to the pressure measurement unit and a pressure water introduced into the water discharge gun or the like, and flows into the pressure measurement unit of the pressure sensor. A pressure signal pipe, and the deflector control unit includes an arm unit that moves the deflector unit by a motor, and when the pressure sensor measures a predetermined pressure value, the deflector unit is removed from the water discharge unit. It is a water discharge restriction device characterized by being moved.

  In the present invention, water discharged from the nozzle is applied to the deflector part until the water discharge pressure reaches a predetermined pressure and flows around the water discharge gun. When the water discharge pressure reaches a predetermined pressure, the deflector part is moved. Only above can be discharged. Thereby, it is possible to prevent water discharge outside the desired flight distance.

BRIEF DESCRIPTION OF THE DRAWINGS It is a systematic diagram which shows 1st Embodiment of this invention, and while showing the state attached to the water discharge gun, (a) shows the state at the time of restricting water discharge, (b) has restricted water discharge. It is a figure which shows a state when there is no. It is a fragmentary sectional view showing the side of the water gun to which the 1st embodiment of the present invention was attached, and is a figure showing the state at the time of restricting water discharge. FIG. 3 is an enlarged view of a main part of FIG. 2. It is a half sectional view showing the front of the water gun to which the first embodiment of the present invention is attached, and is a view showing a state when water discharge is restricted. It is a figure which shows the state when the water discharge of FIG. 2 is not restrict | limited. It is a principal part enlarged view of FIG. It is a figure which shows the state when the water discharge of FIG. 4 is not restrict | limited. It is the systematic diagram which shows 2nd Embodiment of this invention, and while showing the state attached to the water discharge gun, (a) shows the state at the time of restricting water discharge, (b) has restricted water discharge. It is a figure which shows a state when there is no. It is the systematic diagram which shows 3rd Embodiment of this invention, and while showing the state attached to the water discharge gun, (a) shows the state at the time of restricting water discharge, (b) has restricted water discharge. It is a figure which shows a state when there is no. It is the systematic diagram which shows 4th Embodiment of this invention, and while showing the state attached to the water discharge gun, (a) shows the state at the time of restricting water discharge, (b) has restricted water discharge. It is a figure which shows a state when there is no. It is the systematic diagram which shows 5th Embodiment of this invention, and while showing the state attached to the water discharge gun, (a) shows the state at the time of restricting water discharge, (b) has restricted water discharge. It is a figure which shows a state when there is no. It is the systematic diagram which shows 6th Embodiment of this invention, and while showing the state attached to the water discharge gun, (a) shows the state at the time of restricting water discharge, (b) has restricted water discharge. It is a figure which shows a state when there is no. It is the systematic diagram which shows 7th Embodiment of this invention, and while showing the state attached to the water discharge gun, (a) shows the state at the time of restricting water discharge, (b) has restricted water discharge. It is a figure which shows a state when there is no. It is a systematic diagram which shows 8th Embodiment of this invention, and while showing the state attached to the water discharge gun, (a) shows the state at the time of restricting water discharge, (b) has restricted water discharge. It is a figure which shows a state when there is no.

  A first embodiment of the present invention will be described with reference to FIGS.

  First, the configuration of the present embodiment will be described. The water discharge restriction device D includes a pressure detection unit 1, a deflector unit 2, and a deflector control unit 3. In the present embodiment, the water discharge restriction device D is attached to the water discharge gun M.

  The water spray gun M includes a base portion 4, a pipe rod 5, and a connection tool 6. The base unit 4 includes a ball cock main body 40 and a turntable 41. A switching lever 42 connected to the ball cock main body 40 via an internal ball valve 40a and a bearing 40b is attached, and a bottom 40c is connected to a pressurized water supply device (not shown) via a water distribution pipe 7. A water supply port 40d to be connected is formed. The turntable 41 is a tubular member in which a flow path 41b is formed, and a grip 43 for adjusting the water discharge angle by changing the inclination angle of the connection tool 6 is attached.

  The connection tool 6 is pivotally connected to the upper part of the turntable 41 by being sandwiched between the arm portions 41 a and 41 a of the turntable 41. The pipe rod 5 is formed at the tube rod main body 50 and the tip thereof, and has a tapered nozzle portion 51 as a water discharge portion. The base end of the tube main body 50 is connected to the flow path 41 b of the turntable 41 through the connection tool 6.

  The pressure detection unit 1 includes a pilot valve 10, a pressure signal pipe 11, and a drain pipe 12. The pilot valve 10 includes a valve portion 10a that is a two-way valve and a pressure-sensitive portion 10b that senses a discharge pressure, and the valve portion 10a and the pressure-sensitive portion 10b are partitioned by a partition wall 10c. The valve portion 10a includes a first chamber 10a4 in which an inflow port 10a1 is formed, and a second chamber 10a6 in which a discharge port 10a2 is formed. The first chamber 10a4 and the second chamber 10a6 are in the center of the valve seat wall 10a3. The communication port 10a5 is connected to each other. The discharge port 10 a 2 is connected to the drain pipe 12. Further, an inflow port 10b1 is formed in the pressure sensitive part 10b.

  The pilot valve 10 has a disk 10e provided so as to penetrate the partition wall 10c. The upper end side of the disc 10e is further inserted into the communication port 10a5. A valve body 10e1 is formed at the upper end of the disc 10e, and the periphery of the lower end thereof is fixed to the diaphragm 10d. Further, the pilot valve 10 is provided with a pressure adjusting screw 13 having a spring 13a that urges the disc 10e in a direction against the pressure p of the pressure water w.

  The pressure signal pipe 11 includes a base tube 11a having one end connected to the flow path 41b of the turntable 41 via the connector 6, and the other end of the base tube 11a is a valve portion side branch tube 11c and a pressure sensitive portion side branch. Branches to the tube 11d. The valve portion side branch pipe 11c has an orifice 11b, and the secondary side is further branched. One end of the valve part side branch pipe 11c is connected to the inlet 10a1 of the valve part 10a of the pilot valve 10, and the other end is connected to the flow port 30a of the deflector control part 3 via the control part side branch pipe 14. Yes.

  The flow area of the orifice 11b is set to be narrower than the flow areas of the pilot valve 10 and the discharge pipe 12. When the pilot valve 10 is open, all the pressure water w that has passed through the orifice 11b is discharged from the discharge pipe. It is comprised so that it can discharge from 12.

  The deflector control unit 3 includes a cylinder 30, a piston unit 31 and an arm unit 32 provided inside. In the present embodiment, the cylinder 30 is fixed to the tube main body 50 by two fixing tools C1 and C2. A flow port 30 a to which the control unit side branch pipe 14 is connected is formed at the lower end of the cylinder 30, and a space 30 b for forming a piston chamber 30 d on the front side of the pressure receiving plate 31 b of the piston unit 31 is formed therein. Is formed. In addition, a spring 30c that urges the pressure receiving plate 31b of the piston portion 31 in a direction against the pressure p of the pressure water w is provided in the upper portion of the space 30b.

  The piston part 31 consists of the rod part 31a and the said pressure receiving plate 31b. The rod portion 31a is provided so as to penetrate the bottom wall of the cylinder 30, and the tip thereof has a large diameter and is inserted into the spring 30c. Moreover, the pressure receiving plate 31b is attached so that it can move within the space 30b of the cylinder 30 between the ranges a1.

  The arm portion 32 has a substantially square shape and includes a pair of first arms 32a and a straight second arm 32b. The lower end of the second arm 32b is fixed to the lower end portion 31a1 of the rod portion 31a via a support portion 33, and the first arm 32a is pivotally supported via the shaft portion 34 at the upper end thereof. The pair of first arms 32a and 32a is pivotally supported so that one end thereof is vertically movable in the direction of arrow a2 while moving up and down to the tip of the second arm 32b, and is fixed to the fixture C1 at the top 32a1. The support part 32c is pivotally supported so as to be rotatable in the direction of the arrow a3, and the deflector part 2 is attached to the other end.

  The deflector part 2 is a box-shaped member, and is fixed to the pair of first arms 32a and 32a so that the opening 2a comes to a position facing the nozzle part 51 of the pipe rod 5 when water discharge is restricted.

Next, an operation process in the water discharge gun M to which the water discharge restriction device D is attached will be described.
(1) The pressurized water supply device is operated to supply the pressure water w to the ball cock main body 40. Thereafter, the switching lever 42 is operated to open the ball valve 40a of the ball cock main body 40 and to distribute the pressure water w through the flow path 41b.

  (2) The pressure water w is supplied to the tube 5 and to the base tube 11 a of the pressure signal pipe 11. The pressure water w supplied to the base pipe 11a flows into the pressure sensing part 10b of the pressure detection part 1 via the pressure sensing part side branch pipe 11d and at the same time the valve part via the orifice 11b and the valve part side branch pipe 11c. Flows into 10a.

  At this time, since the valve body 10e1 and the valve seat 10a3 of the disc 10e are separated from each other, the pressure water w flowing into the valve portion 10a is discharged from the drain pipe 12. Further, the low pressure water w supplied to the pipe 5 is blocked by the deflector 51 because the deflector 2 is located at the position facing the nozzle 51. Will be discharged.

  (3) When the pressure p of the pressure water w is greater than or equal to the biasing force f1 of the spring 13a of the pressure adjusting screw 13, that is, greater than or equal to the specified value, the diaphragm 10d is reversed and the disc 10e is pushed down by the pressure p, and the valve body 10e1 and the valve The seat 10a3 is pressed. Then, the drainage of the pressure water w from the drain pipe 12 is stopped, and the pressure water w flows into the cylinder 30 through the control unit side branch pipe 14.

  (4) The pressure water w flowing into the control unit side branch pipe 14 flows into the piston chamber 30d through the flow port 30a of the cylinder 30 of the deflector control unit 3, pushes up the pressure receiving plate 31b of the piston unit 31, and the rod portion 31a is moved upward. As the rod portion 31a moves, the second arm 32b of the arm portion 32 fixed to the rod portion 31a via the support portion 33 also moves upward.

  (5) Along with the movement of the second arm 32b, the first arm 32a rotates about the apex 32a1 and rotates the deflector 2 downward. As the deflector unit 2 rotates, the nozzle unit 51 of the pipe rod 5 is released from the deflector unit 2 and vigorously discharges the pressure water w having a water discharge pressure of a specified value or more toward the front.

  (6) When the switching lever 42 is operated and the ball valve 40a of the ball cock main body 40 is closed after the water is discharged, the pressure p of the pressure water w in the pressure signal pipe 11 decreases, so the spring 13a of the pressure adjusting screw 13 Due to the urging force f1, the diaphragm 10d is reversed and the disc 10e is pushed up, the valve body 10e1 and the valve seat 10a3 are separated again, and the drainage of the pressure water w from the drain pipe 12 is started again.

  (7) After that, the pressure water w in the piston chamber of the cylinder 30 is discharged from the circulation port 30a, and when the pressure p of the pressure water w decreases, the rod portion 31a moves downward by the urging force f2 of the spring 30c. And the arm part 32 and the deflector part 2 move contrary to the said process (4) and (5), and the deflector part 2 moves to the position which opposes the nozzle part 51 again. As a result, the remaining water in the pipe 5 having a low water discharge pressure is not discharged forward by the deflector 2 but is discharged downward or rearward.

  A water gun M provided with a second embodiment of the present invention will be described with reference to FIG. The difference from the first embodiment is that a three-way pilot valve 10A is provided instead of the two-way valve pilot valve 10. In addition, since the structure of the code | symbol same as 1st Embodiment is the same as that of 1st Embodiment, description is abbreviate | omitted.

  In the pressure signal pipe 11A of the present embodiment, one end of a base pipe 11a is branched into a valve part side branch pipe 11c and a pressure sensitive part side branch pipe 11d, and the valve part side branch pipe 11c is formed by two orifices 11b. The secondary side is connected to the pilot valve 10A.

  In the present embodiment, the valve portion 10Aa of the pilot valve 10A normally communicates the valve portion side branch pipe 11c and the drain pipe 12, and in the steps (2) and (3), first, the pressure signal pipe 11A. The pressure water w flowing through is discharged from the drain pipe 12. In the pressure sensing part 10b (pilot valve 10A), when the pressure p of the pressure water w exceeds a specified value, the flow path of the pressure water w is switched, and the valve part side branch pipe 11c and the control part side branch pipe 14 are communicated. Let Thereby, the pressure water w is supplied to the deflector control unit 3, the deflector unit 2 rotates, and the nozzle unit 51 of the pipe 5 is opened from the deflector unit 2.

  In the step (7), when the pressure p of the pressure water w in the pressure sensing part 10b (pilot valve 10A) becomes less than a specified value, the valve part 10Aa of the pilot valve 10A is connected to the control part side branch pipe 14. When the pressure water w in the deflector control unit 3 is discharged from the drain pipe 12 through the control unit side branch pipe 14, the deflector unit 2 moves to a position facing the nozzle unit 51. To do.

  A water gun M provided with a third embodiment of the present invention will be described with reference to FIG. The difference from the first embodiment is that, instead of the pilot valve 10, an electric valve 15 that is a two-way valve and a motor 15 a that drives the electric valve 15 are provided, and a pressure switch 16 and a control panel 17 are provided. In addition, about the structure of the code | symbol same as 1st and 2nd embodiment, since it is the same as that of the same embodiment, description is abbreviate | omitted.

  In the pressure signal pipe 11B of this embodiment, one end of the valve part side branch pipe 11c is connected to the motor operated valve 15, and the other end is connected to the flow port 30a of the cylinder 30 via the control part side branch pipe 14. The pressure part side branch pipe 11d is connected to the pressure sensitive part of the pressure switch 16 that is activated when the pressure p of the pressure water w becomes equal to or higher than a specified value, that is, “ON”.

  In the present embodiment, the motor-operated valve 15 is normally open. In the steps (2) and (3), first, the pressure water w flowing through the pressure signal pipe 11B is discharged from the drain pipe 12. When the pressure p of the pressure water w exceeds the specified value, the pressure switch 16 transmits an “ON” signal to the control panel 17, and the control panel 17 closes the motor-operated valve 15. Thereby, the pressure water w is supplied to the deflector control unit 3, the deflector unit 2 rotates, and the nozzle unit 51 of the pipe 5 is opened from the deflector unit 2.

  In the step (7), when the pressure p of the pressure water w becomes less than the specified value and the operation of the pressure switch 16 is stopped, that is, when the pressure switch 16 is turned off, Again, the control panel 17 opens the motor-operated valve 15, and the deflector 2 is opposed to the nozzle 51 by the pressure water w in the deflector controller 3 being discharged from the drain pipe 12 via the controller branch pipe 14. Move to the position you want.

  A water gun M provided with a fourth embodiment of the present invention will be described with reference to FIG. The difference from the second embodiment is that instead of the pilot valve 10A, an electric valve 15A that is a three-way valve and a motor 15a for driving the electric valve 15A are provided, and a pressure switch 16 and a control panel 17 are provided. Note that the same reference numerals as those in the first to third embodiments are the same as those in the first embodiment, and the description thereof will be omitted.

  In the pressure signal pipe 11C of this embodiment, one end of the valve portion side branch pipe 11c is connected to the motor operated valve 15, and one end of the pressure sensitive portion side branch pipe 11d is connected to the pressure sensitive portion of the pressure switch 16. ing.

  In the present embodiment, the motor-operated valve 15A normally communicates the valve-side branch pipe 11c and the drain pipe 12, and in the above steps (2) and (3), first, the pressure flowing through the pressure signal pipe 11C Water w is discharged from the drain pipe 12. When the pressure p of the pressure water w exceeds the specified value, the pressure switch 16 sends an “ON” signal to the control panel 17, and the control panel 17 passes the flow path of the pressure water w of the motor operated valve 15 </ b> A. Switching, the valve part side branch pipe 11c and the control part side pipe 14 are connected. Thereby, the pressure water w is supplied to the deflector control unit 3, the deflector unit 2 rotates, and the nozzle unit 51 of the pipe 5 is opened from the deflector unit 2.

  In the step (7), when the pressure p of the pressure water w becomes less than the specified value and the operation of the pressure switch 16 is stopped, that is, when the pressure switch 16 is turned off, The control panel 17 switches the flow path of the pressure water w of the motor operated valve 15 </ b> A to connect the control unit side branch pipe 14 and the drain pipe 12, and the pressure water w in the deflector control unit 3 passes through the control unit side branch pipe 14. As a result, the deflector unit 2 moves to a position facing the nozzle unit 51.

  A water gun M provided with a fifth embodiment of the present invention will be described with reference to FIG. The difference from the third embodiment is that a pressure sensor 18 is provided instead of the pressure switch 16. In addition, since the structure of the code | symbol same as 1st thru | or 4th embodiment is the same as that of the same embodiment, description is abbreviate | omitted.

  In the pressure signal pipe 11D of the present embodiment, one end of the pressure sensing part side pipe 11d is connected to the pressure measurement unit of the pressure sensor 18 that measures the pressure p of the pressure water w.

  In the present embodiment, the motor-operated valve 15 is normally open, and in the steps (2) and (3), first, the pressure water w flowing through the pressure signal pipe 11D is discharged from the drain pipe 12. When the pressure sensor 18 detects the pressure p of the pressure water w equal to or higher than a specified value, the pressure sensor 18 transmits a signal to the control panel 17, and the control panel 17 closes the motor-operated valve 15. Thereby, the pressure water w is supplied to the deflector control unit 3, the deflector unit 2 rotates, and the nozzle unit 51 of the pipe 5 is opened from the deflector unit 2.

  Further, in the step (7), when the pressure sensor 18 detects that the pressure p of the pressure water w has become less than the specified value, the pressure sensor 18 transmits a signal to the control panel 17, and based on the signal, Again, the control panel 17 opens the motor-operated valve 15, and the deflector 2 is opposed to the nozzle 51 by the pressure water w in the deflector controller 3 being discharged from the drain pipe 12 via the controller branch pipe 14. Move to the position you want.

  A water gun M provided with a sixth embodiment of the present invention will be described with reference to FIG. The difference from the fourth embodiment is that a pressure sensor 18 is provided instead of the pressure switch 16. Note that the same reference numerals as those in the first to fifth embodiments are the same as those in the first embodiment, and a description thereof will be omitted.

  In the pressure signal pipe 11E of the present embodiment, one end of the pressure sensing part side pipe 11d is connected to the pressure measurement unit of the pressure sensor 18 that measures the pressure p of the pressure water w.

  In the present embodiment, the motor-operated valve 15A normally communicates the valve-side branch pipe 11c and the drain pipe 12, and in the steps (2) and (3), first, the pressure water w flowing through the pressure signal pipe 11E. Is discharged from the drain pipe 12. When the pressure sensor 18 detects the pressure p of the pressure water w equal to or higher than the specified value, the pressure sensor 18 transmits a signal to the control panel 17, and the control panel 17 switches the flow path of the pressure water w of the electric valve 15A. The valve part side branch pipe 11c and the control part side branch pipe 14 are connected. Thereby, the pressure water w is supplied to the deflector control unit 3, the deflector unit 2 rotates, and the nozzle unit 51 of the pipe 5 is opened from the deflector unit 2.

  Further, in the step (7), when the pressure sensor 18 detects that the pressure p of the pressure water w has become less than the specified value, the pressure sensor 18 transmits a signal to the control panel 17, and based on the signal, The control panel 17 switches the flow path of the pressure water w of the motor operated valve 15 </ b> A to connect the control unit side branch pipe 14 and the drain pipe 12, and the pressure water w in the deflector control unit 3 passes through the control unit side branch pipe 14. As a result, the deflector unit 2 moves to a position facing the nozzle unit 51.

  A water gun M provided with a seventh embodiment of the present invention will be described with reference to FIG. The difference from the first embodiment is that an electric cylinder 35 and a motor-controlled piston part 36 are provided instead of the cylinder 30 and the piston part 31 of the deflector control part 3, and the pressure switch 16 and the control panel 17 are provided. In addition, since the structure of the code | symbol same as 1st thru | or 6th Embodiment is the same as that of the same embodiment, description is abbreviate | omitted.

  The pressure signal pipe 11 </ b> F of the present embodiment is connected to the pressure sensitive part of the pressure switch 16. The second arm 32 b of the deflector control unit 3 moves in conjunction with the piston unit 36. In the present embodiment, in the steps (2) to (4), when the pressure p of the pressure water w becomes equal to or higher than a specified value, the pressure switch 16 transmits an “ON” signal to the control panel 17 to perform control. The board 17 operates a motor that drives the piston portion 36 to move the piston portion 36 upward. The second arm 32b of the arm part 32 fixed to the piston part 36 also moves upward. As a result, the deflector portion 2 rotates in the same manner as in the above step (5), and the nozzle portion 51 of the pipe rod 5 is released from the deflector portion 2.

  In the step (7), when the pressure p of the pressure water w becomes less than the specified value and the operation of the pressure switch 16 is stopped, that is, when the pressure switch 16 is turned off, the control panel 17 is moved to the piston portion. The motor for driving 36 is operated to move the piston portion 36 downward, that is, to the original position. With the movement, the deflector portion 2 moves to a position facing the nozzle portion 51.

  A water gun M provided with an eighth embodiment of the present invention will be described with reference to FIG. The difference from the seventh embodiment is that a pressure sensor 18 is provided instead of the pressure switch 16. Note that the same reference numerals as those in the first to seventh embodiments are the same as those in the first embodiment, and the description thereof will be omitted.

  The pressure signal pipe 11 </ b> G of the present embodiment is connected to the pressure measurement unit of the pressure sensor 18. In the present embodiment, when the pressure sensor 18 detects the pressure p of the pressure water w equal to or higher than a specified value in the steps (2) to (4), the pressure sensor 18 transmits a signal to the control panel 17 to control the pressure. The board 17 operates a motor that drives the piston portion 36 to move the piston portion 36 upward. The second arm 32b of the arm part 32 fixed to the piston part 36 also moves upward. As a result, the deflector portion 2 rotates in the same manner as in the above step (5), and the nozzle portion 51 of the pipe rod 5 is released from the deflector portion 2.

  Further, in the step (7), when the pressure sensor 18 detects that the pressure p of the pressure water w has become less than the specified value, the pressure sensor 18 transmits a signal to the control panel 17, and based on the signal, The control panel 17 operates a motor for driving the piston portion 36 to move the piston portion 36 downward, that is, to the original position, and the deflector portion 2 moves to a position facing the nozzle portion 51 along with the movement. .

  Although the present invention has been described by dividing it into the first to eighth embodiments, the present invention is not limited to the above-described embodiments, and the above-described embodiments can be appropriately combined. In addition, the present invention is not only applied to a water gun such as the water gun M, but can also be used for other types of water discharge devices such as nozzles and heads that are used in fire extinguishing equipment and flame suppression equipment. It is. For example, it can be used for water spray fire extinguishing equipment, water curtain equipment, etc. in which an open head is fixed to a pipe. In this case, water discharge from a plurality of open-type heads and nozzles may be restricted by one water discharge restriction device D.

D Water discharge restriction device 1 Pressure detection unit 10 Pilot valve 10a Valve unit 10a1 Inlet port 10a2 Outlet port 10a3 Valve seat wall 10a4 First chamber 10a5 Communication port 10a6 Second chamber 10b Pressure sensing unit 10b1 Inlet port 10c Partition wall 10d Diagram 10e Disc 10e1 Valve body 11 Pressure signal pipe 11a Base pipe 11b Orifice 11c Valve part side branch pipe 11d Pressure sensing part side branch pipe 12 Drain pipe 13 Pressure adjusting screw 13a Spring 14 Control part side pipe 15 Electric valve 15a Motor 16 Pressure switch 17 Control panel 18 Pressure sensor 2 Deflector part 2a Opening part 3 Deflector control part 30 Cylinder part 30a Flow port 30b Space 30c Spring 30d Piston chamber 31 Piston part 31a Rod part 31a1 Lower end part 31b Pressure receiving plate 32 Arm part 32a First arm 32a1 Part 32b second arm 32c shaft support part 33 support part 34 shaft part 35 electric cylinder 36 piston part M water discharge gun 4 base part 40 ball cock main body 40a ball valve 40b bearing 40c bottom part 40d water supply port 41 rotary base 41a arm part 41b flow path 42 Switching lever 43 Grasping part 5 Pipe rod 50 Pipe rod body 51 Nozzle part 6 Connector 7 Water distribution pipe C1 Fixing tool C2 Fixing tool f1 Energizing force f2 Energizing force p Pressure w Pressure water

Claims (5)

Attached to the water discharge device, wherein the water discharge device is a water discharge limiting device for limiting to water discharge at a predetermined water discharge pressure,
The water discharge restriction device includes a pressure detector that detects a water discharge pressure of the water discharge device ,
The water discharge portion and covering the Hare deflector portion as water hits to be water discharge water discharge pressure from the water discharge portion of the water discharge device to reach a predetermined pressure of the water discharge device,
When water discharge pressure of the water discharge device reaches a predetermined pressure, water discharge restriction device characterized in that it includes a deflector control unit for moving the deflector unit from the water discharge unit. The pressure detector detects the pressure water pressure introduced into the water discharge device ,
The said deflector control part moves the said deflector capital from the said water discharge part by the pressure of the said pressure water, when the pressure of the pressure water introduce | transduced into the said water discharge device reaches | attains a predetermined pressure. The water discharge limiting device according to 1. The pressure detector detects the pressure water pressure introduced into the water discharge device ,
The said deflector control part moves the said deflector capital from the said water discharge part by electric drive, if the pressure of the pressure water introduce | transduced into the said water discharge apparatus reaches | attains a predetermined pressure, It is characterized by the above-mentioned. Water discharge restriction device. A water discharge restriction device that is attached to a water discharge device and restricts the water discharge device to discharge water at a predetermined water discharge pressure,
The water discharge restriction device includes a pressure detector that detects a water discharge pressure of the water discharge device,
A deflector portion that covers the water discharge portion of the water discharge device and prevents water discharge;
When the water discharge pressure of the water discharge device reaches a predetermined pressure, it comprises a deflector control unit that moves the deflector unit from the water discharge unit,
The pressure detection unit includes a pilot valve that opens and closes by pressure applied to the pressure sensing unit, and a pressure signal pipe that branches pressure water introduced into the water discharge device and flows into the pilot valve, and the water discharge device. Is to detect the pressure water pressure introduced into the
The deflector control unit includes a cylinder into which the pressure water flows, a piston in the cylinder that is moved by the pressure water that has flowed into the cylinder, and a piston that is disposed in the cylinder and that moves the piston into the pressure water. A spring urging in a direction against the pressure of the pressure, and an arm portion connected to the piston and moving the deflector portion by the movement of the piston, and the pressure of the pressure water introduced into the water discharge device is When the predetermined pressure is reached, the deflector is moved from the water discharge section by the pressure water pressure,
The pressure signal pipe is further branched after branching from the water discharge device , one is connected to the pressure sensing part of the pilot valve, the other is further branched, and one end is connected to the valve part of the pilot valve. The other end is connected to the cylinder,
The pilot valve is normally open, and closes when the pressure water is equal to or higher than the predetermined water discharge pressure,
Wherein the pilot valve is closed, the said pressurized water flows into the cylinder, the deflector portion of water restriction device release you and moving from the water discharge unit. A water discharge restriction device that is attached to a water discharge device and restricts the water discharge device to discharge water at a predetermined water discharge pressure,
The water discharge restriction device includes a pressure detector that detects a water discharge pressure of the water discharge device,
A deflector portion that covers the water discharge portion of the water discharge device and prevents water discharge;
When the water discharge pressure of the water discharge device reaches a predetermined pressure, it comprises a deflector control unit that moves the deflector unit from the water discharge unit,
The pressure detection unit has one inflow port and two discharge ports, branches a pilot valve that switches a flow path according to pressure applied to the pressure sensing unit, and branches the pressure water introduced into the water discharge device. A pressure signal pipe that flows into the valve, and detects the pressure of the pressure water introduced into the water discharge device,
The deflector control unit includes a cylinder into which the pressure water flows, a piston in the cylinder that is moved by the pressure water that has flowed into the cylinder, and a piston that is disposed in the cylinder and that moves the piston into the pressure water. A spring urging in a direction against the pressure of the pressure, and an arm portion connected to the piston and moving the deflector portion by the movement of the piston, and the pressure of the pressure water introduced into the water discharge device is When the predetermined pressure is reached, the deflector is moved from the water discharge section by the pressure water pressure,
The pressure signal pipe is further branched after branching from the water discharge device , one is connected to the pressure sensitive part of the pilot valve, the other is connected to the inlet of the pilot valve,
The pilot valve is connected to the cylinder at one end of the discharge port, and normally opens a flow path to the drain side. When the pressure water becomes equal to or higher than the predetermined discharge pressure, the flow path is connected to the cylinder. switching the flow path, the pressurized water flows into, features and to that release water restriction device that moves the deflector unit from the water discharge portion in the cylinder.

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