WO2010147112A1 - 流水検知装置 - Google Patents
流水検知装置 Download PDFInfo
- Publication number
- WO2010147112A1 WO2010147112A1 PCT/JP2010/060114 JP2010060114W WO2010147112A1 WO 2010147112 A1 WO2010147112 A1 WO 2010147112A1 JP 2010060114 W JP2010060114 W JP 2010060114W WO 2010147112 A1 WO2010147112 A1 WO 2010147112A1
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- WO
- WIPO (PCT)
- Prior art keywords
- valve body
- flowing water
- detection rod
- detection device
- water detection
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/68—Details, e.g. of pipes or valve systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/04—Hydraulic or pneumatic actuation of the alarm, e.g. by change of fluid pressure
Definitions
- the present invention relates to a water flow detection device that is installed in a fire extinguishing equipment pipe and detects a flow of water inside a filled pipe and outputs a signal, and in particular, between the primary side and the secondary side of a valve body when a water flow occurs.
- the present invention relates to an operating valve type flowing water detection device that mechanically detects a generated differential pressure and outputs a signal such as a fire signal or an alarm.
- the flowing water detection device is installed in a fire extinguishing equipment pipe such as a sprinkler equipment or a foam fire extinguishing equipment, and detects a running water inside the pipe and outputs a predetermined signal (fire signal, alarm).
- the inside of the flowing water detection device has a check valve structure, and the inside is divided into a primary side chamber and a secondary side chamber by the valve body, and the valve body is always in a closed state separating them.
- the primary side chamber and the secondary side chamber are always filled with water
- the piping connected to the primary side chamber is connected to a water source such as a water storage tank
- the piping connected to the secondary side chamber is connected to a spraying head such as a sprinkler head or foam head. It is connected.
- the operating valve type water flow detection device having such merits cannot be realized as a water flow detection device having a relatively large diameter (for example, 65A to 200A) as installed in a general building. That is, when a large number of sprinkler heads are installed as in a general building, the differential pressure generated between the primary side and the secondary side of the valve body due to the water flowing from the sprinkler head is very small, and the diameter of the water flow detection device As the flow rate is increased by increasing the pressure, the differential pressure becomes smaller. When the differential pressure becomes small, the rotation angle of the valve body becomes small, and it becomes difficult to accurately detect the flowing water from the sprinkler head based on the rotation angle of the valve body.
- a relatively large diameter for example, 65A to 200A
- the conventional actuated valve type water flow detection device has many technical advantages as described above, but it has been put to practical use only for the water flow detection device having a relatively small diameter, and is compared with the installation in a general building.
- the automatic alarm valve type water flow detector is still used in the large diameter water flow detector.
- the present invention has been made against the background of the prior art as described above.
- the object is to provide a new actuated valve type water flow detector which can be applied even with a relatively large diameter.
- the present invention provides the following water flow detection device.
- the present invention includes a cylindrical main body connected to a fire extinguishing equipment pipe, a valve body having a check valve structure provided inside the main body, and a switch device that detects flowing water due to the rotation of the valve body and outputs a predetermined signal.
- a detection rod that has one end abutting against a portion of the valve body opposite to its bearing and turning the switch device on and off by rotating the valve body in the opening direction, and in the opening direction of the valve body And a biasing member that biases the detection rod.
- a detection rod that has one end in contact with a portion of the valve body opposite to the bearing and that switches the switch device on and off in conjunction with the rotation of the valve body in the opening direction is provided.
- the urging member urges the detection rod in the opening direction of the valve body. Therefore, in the conventional actuated valve type flowing water detection device, even in the case where the flowing water on the secondary side is small and the rotation of the valve body is small, in the present invention, the valve body is detected via the detection rod by the urging member. By energizing the valve body and reducing the closing load acting on the valve body, the opening angle of the valve body can be increased, and the detection of running water by turning the valve body can be performed mechanically accurately. It becomes possible.
- the one end side of a detection rod contacts the valve body in the part on the opposite side to the bearing of a valve body. Therefore, even when the rotation of the valve body is small in the flowing water detection device having a large diameter, the detection rod is brought into contact with the portion of the valve body opposite to the bearing of the valve body, and thus the valve body moves greatly within the valve body.
- the detection rod can be rotated in conjunction with the part, and the movement of the valve body can be accurately detected.
- the side opposite to the bearing in the valve body is the side opposite to the side where the bearing exists when the valve body is viewed from the outlet of the flowing water and is divided at least into the center of the valve body. Means.
- a projecting skirt portion is provided on the primary side surface of the valve body to form an orifice-shaped flow path inside the main body by the rotation of the valve body.
- the differential pressure for rotating the valve body changes under the influence of the flow rate of the fluid and the area and shape of the flow path through which the fluid passes. Therefore, in the present invention, a skirt portion that forms an orifice in the flow path inside the main body is provided on the primary side surface of the valve body to reduce the passage area of the fluid, and a small change in flowing water is amplified to increase the opening angle of the valve body. can do.
- the valve body is provided with a weight portion for urging the valve body in the closing direction.
- the secondary pipe is depressurized due to minute water leaks from the joint of the secondary pipe, etc., or the pump is activated by the operation of the water flow detector of another system, causing water vibration in the pipe.
- the valve body may be temporarily opened even during non-fire.
- the valve portion can be immediately returned to the closed state, and the sealing property at the time of closing can be ensured.
- the weight portion of the present invention can be realized by a dome-shaped protrusion formed on the secondary side surface of the valve body. Since the weight portion constitutes a part of the valve body, it is not necessary to prepare a separate member as the weight portion, and an unnecessary increase in parts can be avoided.
- the weight portion of the present invention can be realized as a skirt portion. Since the skirt portion also serves as the weight portion, it is not necessary to prepare a separate member as the weight portion, and an unnecessary increase in parts can be avoided.
- the weight portion of the present invention can be made of metal. Since the weight part is made of metal, both the rigidity and weight suitable for the weight part attached to the movable valve body can be given, and the valve body in non-fire can be returned to the closed state and closed. It is possible to ensure the necessary sealing performance. Moreover, since shape processing is also easy, it can apply to the valve body of various structures.
- the weight portion of the present invention can be configured as a rust-proof coating layer electrodeposition coating layer formed on the surface of an iron weight main body. According to the present invention, both rigidity and weight suitable for the weight portion can be realized at low cost, and further, rust can be prevented by the rust preventive coating layer.
- This rust-proof coating layer can be configured as a coating layer, and specifically can be implemented by an electrodeposition coating layer and a powder coating layer. Can prevent rust.
- the biasing member of the present invention can be any of a rubber-like elastic body, a coil spring, a weight, and a magnet.
- a rubber-like elastic body an elastic member such as a spring, a weight, or a magnet as the biasing member, the biasing member can be realized with a simple configuration.
- the urging member of the present invention includes an urging force adjusting unit that urges the detection rod in the opening direction of the valve body.
- the urging force that urges the valve body in the opening direction can be adjusted by the urging force adjustment section, so the urging force against the detection rod can be adjusted according to various usage conditions, such as the relationship between the differential pressure that opens the valve body and the opening angle. can do.
- the present invention can be configured as having a rotation restricting portion that makes the rotation angle of the detection rod smaller than the rotation angle of the valve body. Since the rotation restricting portion makes the rotation angle of the detection rod smaller than the rotation angle of the valve body, the opened valve body is not urged by the detection rod and does not hinder the rotation operation of the valve body.
- the detection rod can be provided in the primary chamber and the tip of the detection rod can be brought into contact with the valve body. Since the detection rod is provided by moving from the secondary side chamber to the primary side chamber, the reliability of the operation of the detection rod can be improved even if it is assumed that dust or the like enters the flowing water detection device.
- the present invention can also be configured such that one end side contacts the detection rod, the other end side contacts the switch device, and a lever provided with a rotary damper is provided on the central rotation shaft.
- One end is in contact with the detection rod, the other end is in contact with the switch device, and a lever with a rotary damper is provided on the central rotation shaft to slow down the rotation of the detection rod against the opening of the valve Can be. Since the rotation operation of the detection rod can be slowed, it is not necessary to take a friction reducing measure such as coating on the end of the detection rod in contact with the valve body. In addition, the rotation of the lever is easily understood and the operation can be easily confirmed. Furthermore, the rotary damper can be made compact, and the installation location of the delay mechanism can be reduced.
- the switch device is disposed outside the main body, the other end of the detection rod on the switch side is disposed on the switch device, and the biasing member is connected to the other end of the detection rod on the switch side. It can be configured to be arranged to be energized. According to this, since the urging member can be arranged outside the main body, repair or replacement can be easily performed outside the main body.
- a size call (“call of size” described in the detailed regulations of the flow detection device) that is often installed in a general building is 65A (2-1 / It is possible to realize a new operation valve type water flow detection device that can be applied to a relatively large diameter of about 2 ′′) to 200A (8 ′′).
- FIG. 3 is a YY sectional view of FIG.
- the expanded sectional view which shows the housing
- the expanded sectional view which shows the retainer of FIG. 4, and its peripheral part.
- FIG. 6 is an enlarged cross-sectional view showing the seal member of FIG. 5 and its peripheral portion.
- the expanded sectional view which shows the state which the detection rod of FIG. 5 rotated with opening of a valve body.
- Partial assembly drawing of extended block and retainer Explanatory drawing of embodiment which the hole shape of the holder used as the long hole. Sectional drawing equivalent to FIG. 3 which shows the open state of a valve body.
- Explanatory drawing which shows other embodiment of a retainer.
- Explanatory drawing which shows embodiment of the housing
- the expanded sectional view which shows other embodiment of a sealing member and a washer.
- the expanded sectional view which shows other embodiment of a sealing member.
- Sectional drawing which shows other embodiment of a valve body.
- Sectional drawing which shows other embodiment of a flowing water detection apparatus.
- Sectional drawing which shows other embodiment of a biasing member.
- Sectional drawing which shows other embodiment of a biasing member.
- Sectional drawing which shows another embodiment using a rotary damper for a delay mechanism.
- casing which shows another embodiment using a rotary damper for
- the flowing water detection device A of the present invention shown in FIGS. 1 to 3 includes a main body 1, a housing 2, and a drain valve 3.
- the main body 1 has a hollow cylindrical shape, and the inside is divided into a primary side chamber I and a secondary side chamber II by a partition wall 4.
- a communication hole 5 is formed in the partition wall 4, and an annular valve seat 6 is installed on the secondary side chamber II side.
- a disc-like valve body 7 is seated on the valve seat 6, and a cylindrical bearing 8 is formed on a part of the periphery of the valve body 7, and a valve rod 9 is inserted into the bearing 8. ing.
- the valve stem 9 is stretched horizontally inside the main body 1 and is held by the main body 1.
- the valve body 7 has a check valve structure that can rotate in the direction of the secondary side chamber II around the valve rod 9, and the valve body 7 rotates in the direction of the secondary side chamber II and separates from the valve seat 6.
- the fluid in the primary side chamber I can pass through the annular valve seat 6 to the secondary side chamber II.
- the valve body 7 includes a valve main body 7a, a convex portion 7b accommodated in a concave portion on the primary side of the valve main body 7a, and a fastening member 7c made of a bolt and a nut for fixing the convex portion 7b to the valve main body 7a.
- the valve body 7a is made of metal, specifically iron, and an electrodeposition coating layer is formed on the entire surface as a rust-proof coating layer (not shown).
- the convex portion 7b is made of iron on which an electrodeposition coating layer is formed.
- the valve body 7 is combined with the valve body 7a and the convex part 7b as separate parts.
- valve body 7 itself may have a shape in which the valve main body 7a and the convex part 7b are integrally formed as one part. it can.
- the convex portion 7 b enters and is accommodated inside the valve seat 6 in a state where the valve body 7 is seated on the valve seat 6.
- the convex portion 7b of the present embodiment functions as a protruding skirt portion that forms an orifice in the main body 1 of the flowing water detection device A.
- the convex part 7b functions also as a weight part which ensures the sealing property at the time of closing by immediately returning to the valve closing state when the valve body 7 may be temporarily opened at the time of non-fire. .
- a protrusion 10 is formed on the periphery of the valve body 7 so as to protrude from the edge (FIGS. 2 and 3). More specifically, the protrusion 10 is located on the opposite side of the peripheral edge of the valve body 7 from the side where the bearing 8 is provided in the valve body 7, in other words, in the valve body 7. It is provided on the side opposite to the side in contact with the valve stem 9.
- the end portion 11 ⁇ / b> A of the detection rod 11 is in contact with the surface of the protruding portion 10 on the valve seat 6 side.
- This detection rod 11 is pivotally supported by a pin P in the middle (FIG. 4), and is configured to be able to rotate up and down in the drawing.
- the detection rod 11 When the end 11A of the detection rod 11 is in contact with the valve body 7, the detection rod 11 is in a substantially horizontal state.
- the detection rod 11 is in contact with the valve body 7 and functions as a detection rod for turning on a switch device (a limit switch 17 described later) by turning the valve body 7 in the opening direction.
- the protruding portion 10 is formed at a position eccentric from the central axis of the valve body 7. This is because when the lower side in FIG. 2 is the front, the detection rod 11 protruding from the main body 1 is disposed rearward of the side, and the drain valve 3 is disposed forward of the same side.
- the detection rod 11 By disposing the detection rod 11 at the rear side of the side as described above, the lateral width dimension of the flowing water detection device A is made smaller than the case where the housing 2 that houses the detection rod 11 and the limit switch 17 is positioned at the center of the same side. A compact design has been achieved.
- the flow detection device A can be made more compact than the case where it is arranged on the other side surface. ing. Further, when the protruding portion 10 is provided at the outer peripheral position of the valve body 7 farthest from the rotation shaft (the bearing 8 and the valve rod 9) of the valve body 7, the rotation amount of the detection rod 11 is substantially equal to the rotation amount of the valve body 7. In this case, the rotation amount of the detection rod 11 becomes excessive with respect to a small operation amount for turning on / off the limit switch 17 described later, and the rotation of the detection rod 11 is turned on / off of the limit switch 17. It becomes extremely difficult to link properly.
- the protruding portion 10 is provided at the outer peripheral position on the near side of the outer peripheral position farthest from the rotation shaft of the valve body 7.
- the rotation amount of the detection rod 11 becomes smaller than the rotation amount of the valve body 7, and the rotation amount of the detection rod 11 can be adapted to a small operation amount for turning on / off the limit switch 17.
- a flange portion F is formed at the tip of the end portion 11A of the detection rod 11, and the edge of the flange portion F has a rounded shape.
- the detection rod 11 also rotates along with the opening, but until the detection rod 11 moves away from the projection 10 of the valve body 7, Since the flange portion F operates so as to slide on the surface, there is an effect that the sliding operation of the detection rod 11 with respect to the protruding portion 10 can be smoothly performed.
- the flange portion F can be implemented as a spherical shape instead of a disc shape.
- the end 11 ⁇ / b> B is provided with a columnar spring seat 12 that protrudes upward in the drawing, and is installed on the base B above the spring seat 12 in the drawing.
- a spring seat 13 is provided.
- a coil spring 14 is provided as an elastic body between the spring seats 12 and 13. The coil spring 14 functions as a biasing member that biases the detection rod 11 in the opening direction of the valve body 7.
- the spring seat 12 has a columnar shape, and a male screw 12A is formed at one end thereof.
- the male screw 12A is screwed into a female screw 11C provided at the end 11B of the detection rod 11.
- the male screw 12A and the female screw 11C are arranged in a direction orthogonal to the pin P.
- a step portion 12B on which an end portion of the coil spring 14 is seated is formed at an intermediate portion of the spring seat 12, and a column portion 12C that is inserted into the coil spring 14 from the step portion 12B is provided.
- a male screw 13 ⁇ / b> A, a step portion 13 ⁇ / b> B, and a column portion 13 ⁇ / b> C are formed on the spring seat 13.
- the coil spring 14 is held between the spring seats 12 and 13.
- the distance between the spring seats 12 and 13 can be changed by changing the screwing length of the spring seat 12 to the detection rod 11 and the screwing length of the spring seat 13 to the base B of the housing 2.
- the amount of bending of the coil spring 14 can be changed to adjust the resilience for urging the detection rod 11.
- the column portion 12C and the column portion 13C function as a reverse rotation restricting portion for the detection rod 11 that rotates about the pin P as a rotation axis.
- the coil spring 14 normally biases the end 11B of the detection rod 11 downward in the figure. For this reason, the end portion 11A opposite to the end portion 11B is biased upward in the figure, that is, in the direction in which the valve body 7 opens, with the pin P as the rotation axis, but the biasing force of the coil spring 14 is released by the valve body 7. It is weak enough not to do.
- a contact 16 that contacts the limit switch pressing piece 15 is fixedly installed at the end 11 ⁇ / b> B of the detection rod 11.
- the contact 16 urges the limit switch pressing piece 15 in a direction away from the limit switch 17.
- the contact 16 is installed so as to be sandwiched between the spring seat 12 and the end 11B of the detection rod 11.
- a delay mechanism 18 is installed in the direction in which the contact 16 urges the limit switch pressing piece 15.
- the delay mechanism 18 has a function of delaying the operation of the limit switch pressing piece 15, and a structure using an air damper or an oil damper is used. The operation of the delay mechanism 18 will be described later.
- the pin P that pivotally supports the detection rod 11 shown in FIGS. 4 to 8 is provided so as to intersect with the center of the hole 20 of the retainer 21 having a plate shape and a hole 20 in the center.
- a groove-shaped bearing 21A that accommodates the pin P is engraved.
- the pin P is configured not to go out of the bearing 21A by a washer 27 described later.
- the retainer 21 is installed between the base B of the housing 2 and the extended block 22.
- the extended block 22 is a member that connects the main body 1 and the housing 2.
- the extended block 22 can also be formed integrally with the main body 1 of the flowing water detection device A. By forming the extended block 22 integrally, the number of parts can be reduced and the cost can be reduced.
- the case 2 can be handled as a unit product by forming it as a single independent part and incorporating it into the case 2 as in the present embodiment, and the case 2 is separated from the main body 1 for inspection. Can be exchanged.
- the extended block 22 has a plurality of bolt through holes 221 for connecting to the main body 1 by a plurality of bolts.
- the main body 1 is provided with a female screw at a position corresponding to the bolt through hole 221.
- a hole 22A communicating with the secondary side chamber II of the main body 1 is formed inside the extended block 22, and the retainer 21 is installed via a seal member 23 in a step 22B formed in the middle part of the hole 22A.
- the seal member 23 holds the inside of the filled main body 1 in a liquid-tight manner with respect to the inside of the housing 2.
- a groove 22 ⁇ / b> C is formed as a retainer holding means for holding the retainer 21 in a predetermined position on the surface of the extender block 22 on the housing 2, and engages with a protrusion 21 ⁇ / b> B provided on the outer peripheral surface of the retainer 21.
- the retainer 21 is held at a predetermined position of the extended block 22.
- the shaft of the pin P installed on the bearing 21A of the retainer 21 is horizontally disposed so as to be orthogonal to the direction of the water flow flowing in the flowing water detection device A.
- the detection rod 11 that is pivotally supported by the pin P can be swung with its end portions 11A and 11B parallel to the water flow direction.
- the retainer 21 and the extend block 22 have an engagement structure in which a recess is provided on the outer shape side of the retainer 21 and corresponding protrusions are formed on the extend block 22.
- a fitting recess having the same shape may be formed in the extended block 22 by forming the shape.
- the retainer 21 and the extended block 22 can be arranged at predetermined positions and fixed with a plurality of screws or the like.
- the seal member 23 is cylindrical and formed of a material having elasticity such as rubber, and can be deformed with respect to the rotation operation of the detection rod 11.
- the detection rod 11 is inserted through the cylindrical portion of the seal member 23.
- the seal member 23 may be formed as an integral molded body by embedding the detection rod 11 when the seal member 23 is molded. When knurling is applied to the surface of the detection rod 11 on which the seal member 23 is installed, the seal member 23 is prevented from coming off.
- a thin flange portion 24 that extends in a direction orthogonal to the axis of the cylindrical portion is formed.
- a projecting portion 25 having a convex cross section projecting toward the extended block 22 is formed on the peripheral edge of the flange portion 24, and the projecting portion 25 is sandwiched between the retainer 21 and the extended block 22.
- a cylindrical holder H is provided between the flange 24 and the extended block 22.
- the secondary side pipe When the running water detection device A is installed, the secondary side pipe is filled with water. At this time, compressed air remains in the secondary side pipe due to the influence of the air pocket. Since this compressed air causes a decrease in the sensitivity of detecting the flowing water of the flowing water detection device A, the secondary side piping may be evacuated with a vacuum pump after filling to remove residual air. However, the sealing member 23 may be pulled in the direction of the secondary side chamber II of the main body 1 due to the evacuation of the secondary side piping, and may be out of the proper mounting position. If the seal member 23 deviates from the normal mounting position, the airtightness of the secondary side piping may not be maintained.
- the holder H is for restricting such unnecessary movement of the seal member 23. Therefore, one end of the holder H is disposed in contact with or in close proximity to the flange 24. Then, a step portion is provided on the outer peripheral portion of the holder H, and this is engaged with the step portion 22B of the extended block 22, thereby preventing unnecessary movement between the holder H itself and the seal member 23.
- the inner peripheral portion of the holder H has a tapered shape that expands in a funnel shape toward the main body 1 so as not to interfere with the detection rod 11 that rotates.
- the hole shape of the inner peripheral part of the holder H is formed in a perfect circle shape, for example, it is more preferable to form it as a long hole H1 as in the embodiment shown in FIG.
- the width of the elongated hole H1 slightly larger than the outer diameter of the detection rod 11, there is an advantage that the rotating detection rod 11 can be prevented from swinging in the direction perpendicular to the flowing water direction. That is, in the flowing water detection device A, the generation of a signal by the limit switch 17 is controlled by the rotation operation of the detection rod 11 interlocked with the opening of the valve body 7.
- the rotation amount of the detection rod 11 does not accurately correspond to the rotation amount of the valve body 7, and a signal is generated by the limit switch 17.
- a risk can be avoided.
- Two washers 26 and 27 through which the detection rod 11 is inserted are attached between the flange 24 of the seal member 23 and the retainer 21.
- the two washers 26 and 27 are assembled with their opposing surfaces in contact with each other. By interposing such washers 26 and 27, the contact surfaces of the washers 26 and 27 slide during the rotation operation of the detection rod 11 to smooth the rotation operation of the detection rod 11, and the detection rod 11
- the load applied to the flange 24 when rotating is reduced.
- the washer 27 in contact with the retainer 21 is for receiving the flange portion 24 of the seal member 23 on which water pressure acts on a flat plane without unevenness. Without this washer 27, the flange 24 may bite into the bearing 21A of the retainer 21 due to water pressure from the main body 1 side and break.
- the outer diameter of the washer 27 is equal to the outer diameter of the flange 24.
- the inner diameter of the washer 27 is large enough to create a gap that does not hinder the rotation of the detection rod 11.
- the washer 26 in contact with the seal member 23 has the same inner diameter as that of the detection rod 11 and has an outer diameter smaller than that of the washer 27. If the washer 26 is not provided, the flange 24 that receives water pressure may bite into the gap between the washer 27 and the detection rod 11 and break, but the gap is closed by the washer 26 having the same inner diameter as the detection rod 11. This inconvenience does not occur in this embodiment.
- Resin coating is applied to the surfaces of the washers 26 and 27.
- the resin coating is applied for the purpose of improving the lubricity between the washers 26 and 27.
- the detection rod 11 rotates, the sliding motion between the washers 26 and 27 becomes smooth, and the detection rod 11 rotates. There is an effect that does not hinder the operation.
- plating treatment or painting / coating having an action of smoothing the sliding between the washers 26 and 27 may be applied.
- a step portion 30 is formed in the direction from the periphery of the hole 20 to the base B, and the step portion 30 is inserted into the hole B1 of the base B. Consideration is made so that the positional relationship with the installed limit switch 17 and the like is appropriate. Further, the hole in the step portion 30 is formed with a taper that expands toward the end portion 11B of the detection rod 11, so that it does not interfere with the inner peripheral surface of the step portion 30 when the detection rod 11 rotates. ing.
- the drain valve 3 is a valve that discharges the fluid in the main body 1 to the outside during inspection and maintenance, and is installed adjacent to the housing 2.
- the inside of the drain valve 3 has an angle valve structure, and the discharge port is provided downward in FIG.
- a handle for opening and closing the drain valve 3 is installed on the front side, and is provided at a position where the handle can be easily operated.
- the above-mentioned water flow detection device A is installed in a fire extinguishing equipment pipe, and the primary side chamber I is connected to a water supply device such as a pump (not shown) and a pipe leading to a water source such as a water storage tank, and a pipe connected to the secondary side chamber II A sprinkler head (not shown) is installed at the end of the head.
- the fire extinguishing equipment pipe is filled with water, and the main body 1 of the water flow detector A is also filled with water in the primary side chamber I and the secondary side chamber II.
- the valve body 7 is seated on the valve seat 6, and the convex portion 7 b enters and is accommodated in the flow path inside the valve seat 6, so that water flows from the primary side chamber I to the secondary side chamber II. Is blocked.
- the detection rod 11 in contact with the valve body 7 is in a substantially horizontal state.
- the valve body 7 Since the valve body 7 is opened away from the valve seat 6, the water in the primary side chamber I is sent to the secondary side chamber II.
- the detection rod 11 that has been in contact with the valve body 7 is also rotated about the pin P by the biasing force of the coil spring 14, and the end portion 11B of the detection rod 11 on the housing 2 side is horizontal as shown in FIG. It pivots further downward.
- valve body 7 When the valve body 7 is rotated and the water in the primary side chamber I is sent to the secondary side chamber II, the convex portion 7b of the valve body 7 is gradually removed from the inside of the valve seat 6, so that the outer periphery of the convex portion 7b.
- An orifice-shaped flow path is formed between the surface and the inner peripheral surface of the valve seat 6, and as a result of the valve body 7 being pushed up by flowing water passing therethrough, the valve body 7 rotates greatly even with a small amount of flowing water. .
- the valve body 7 When the valve body 7 continues to rotate, the valve body 7 opens as shown in FIG. At this time, the detection rod 11 comes into contact with the opening end (rotation restricting portion) 1b of the insertion hole 1a of the detection rod 11 that opens to the secondary side chamber II of the main body 1 so that further rotation is restricted. become. As a result, the flange portion F of the detection rod 11 is separated from the protruding portion 10 of the valve body 7, so that the valve body 7 after being opened can be prevented from receiving the urging force from the detection rod 11.
- the contact 16 on the end 11 ⁇ / b> B side of the detection rod 11 moves away from the limit switch pressing piece 15, and the limit switch pressing piece 15 starts moving in a direction approaching the limit switch 17.
- the limit switch pressing piece 15 reaches the limit switch 17 and operates the limit switch 17 after a predetermined time has elapsed by the delay mechanism 18, and the signal of the limit switch 17 is managed through a lead wire connected to the terminal block in the housing 2. Sent to a monitoring device installed in a human room.
- the aforementioned pump is activated by a signal from the limit switch 17, water is sent from the water source to the sprinkler head activated by the fire, and water is continuously sprayed from the sprinkler head to stop the fire.
- the flowing water detection device A includes a coil spring 14 as a biasing member that biases the detection rod 11 in a direction in which the valve body 7 opens. For this reason, the detection rod 11 does not apply a closing load to the valve body 7 while detecting the flowing water by interlocking the rotation of the detection rod 11 with the rotation at the time of opening and closing due to the differential pressure of the valve body 7. For this reason, in the conventional operating valve type flowing water detection device, the opening angle of the valve body 7 can be increased even when there is little flowing water on the secondary side and the rotation of the valve body is small. Therefore, it is a highly reliable operating valve type that can be applied to relatively large apertures, such as 65A (2-1 / 2 ") to 200A (8"), which are often installed in general buildings.
- the flowing water detection device A can be realized.
- the flowing water detector A can be implemented not only as a relatively large-diameter but also as a relatively small-diameter working valve-type flowing water detector that has been put into practical use in condominiums and the like
- the flowing water detection device A has a retainer 21 as a holding member that holds the pin P of the detection rod 11 so as to be parallel to the valve rod 9 of the valve body 7, and an extended block that holds the retainer 21 and is attached to the main body 1 with bolts. 22.
- the retainer 21 and the extended block 22 are provided with a protrusion 21B and a groove 22C as rotation restricting portions, and these are engaged with each other in an uneven manner. Accordingly, the pin P that serves as the rotation shaft of the detection rod 11 can always be installed in parallel with the valve rod 9 that serves as the valve shaft of the valve body 7, and the detection rod 11 is inclined to contact the valve body 7. Therefore, the amount of displacement when the detection rod 11 rotates is always constant. Therefore, it is possible to always accurately detect that the flowing water is generated inside the pipe and the valve body 7 is opened by the rotational displacement of the detecting rod 11, and to realize the flowing water detecting device A with high operation detection reliability. Can do.
- the engaging structure of the protrusion 21B of the retainer 21 and the groove 22C of the extend block 22 prevents the retainer 21 from rotating, and the pin P that pivotally supports the detection rod 11 is parallel to the valve rod 9 of the valve body 7.
- a protrusion 21B is formed on the surface of the retainer 21 facing the base B of the housing 2, and the base B has a hole (not shown) engaged therewith. The retainer 21 and the pin P may be prevented from rotating by the engagement structure of these rotation restricting portions.
- the example in which the pin P that supports the detection rod 11 is held by the bearing 21A formed on the retainer 21 has been described.
- the pin P is held on the base B of the housing 2 as shown in FIG.
- the use of the retainer 21 can be abolished by forming the recess for the bearing.
- a cylindrical protrusion that closes the hole 20 of the retainer 21 is formed on the seal member 23 made of a rubber-like elastic body such as silicone rubber, and the use of the washer 26 is abolished.
- a gap is set between the washer 27 and the detection rod 11 so as not to hinder the rotational displacement of the detection rod 11, and the washer 26 is used to prevent the seal member 23 from biting into the gap.
- the rotation displacement of the detection rod 11 is not allowed by the gap, but the rotation displacement of the detection rod 11 is allowed by the elastic deformation of the seal member 23, thereby Use has been abolished.
- a through-hole through which the pin P is inserted is formed in a direction orthogonal to the cylindrical axis of the protruding portion (not shown).
- the use of the washers 26 and 27 themselves is abolished, and the number of parts is reduced. That is, in this embodiment, the retainer 21 is formed with a groove-shaped bearing 21A that holds a pin from the base B side of the housing 2.
- a washer 27 is used as a lid.
- the bearing 21 ⁇ / b> A is formed as a groove that does not face the flange portion 24 of the seal member 23 and opens on the base B side. it can.
- the use of the washer 27 is abolished, and the use of the washer 26 is also abolished by forming a cylindrical protrusion similar to that shown in FIG. It should be noted that, in place of the groove-shaped bearing 21A opened on the base B side as shown in FIG. 12, even if a hole penetrating in a direction orthogonal to the cylinder axis of the retainer 21 is provided, the washers 26 and 27 are similarly formed. Can be abolished. Further, a through-hole through which the pin P is inserted is also formed in the protruding portion provided in the seal member 23 shown in FIG. 14 in a direction orthogonal to the cylindrical axis of the protruding portion (not shown).
- the valve body 7a is formed into a dome shape by forming the upper surface of the valve body 7a in a dome shape. It may be made to function as.
- the detection rod 11 may be configured to linearly move like the flowing water detection device shown in FIG. .
- a detection rod 28 for urging the valve body 7 by linear motion and a coil spring 29 as an urging member for urging the detection rod 28 upward in the figure are provided.
- a bellows 34 is attached to the upper end side of the detection rod 28 so as to keep the inside of the main body 1 fluid-tight and expandable / contractable according to the linear motion of the detection rod 28.
- a limit switch 17 as a switch device is provided outside the main body 1 on the lower end side of the detection rod 28. It is also possible to carry out in this way.
- the coil spring 14 is exemplified as the urging member.
- a cylindrical elastic body 31 formed of a rubber-like elastic material such as silicone rubber is provided between the spring seats 12 and 13. It can also be attached in a compressed state, and its elastic force can be used as an urging force.
- a magnet 32 facing the spring seats 12 and 13 with the same polarity can be attached as a biasing member, and a repulsive force generated between the magnets 32 and 32 can be used as a biasing force.
- the magnet 32 attached to the upper end of the column portion 12C functions as a reverse rotation restricting portion of the detection rod 11 together with the opposite column portion 13C.
- the weight 33 can be attached to the spring seat 12 as an urging member, and the load of the weight 33 can be used as the urging force.
- the weight 33 can be made of metal, and also functions as a reverse rotation restricting portion of the detection rod 11 together with the column portion 13C. Note that any one of the coil spring 14, the cylindrical elastic body 31, the magnet 32, and the weight 33 can be combined to form an urging member.
- the protruding portion 10 is provided at a position on the near side in the circumferential direction with respect to the outer peripheral position of the valve body 7 farthest from the rotation shaft (the bearing 8 and the valve rod 9) of the valve body 7 so that the detection rod 11 is brought into contact with it.
- it is good also as a structure which provides the protrusion 10 in the outer peripheral position of the valve body 7 which is most spaced apart from the rotating shaft of the valve body 7, and makes the detection rod 11 contact.
- FIG. 20 is an example provided in the primary side chamber I of the flowing water detection apparatus A.
- the configuration of the limit switch 17 and the urging member that are covered in the housing 2 at the portion in contact with the detection rod 11 is the same as the configuration described as the embodiment or the modification thereof.
- the end of the detection rod 11 that contacts the valve body 7 is different.
- the end of the detection rod 11 that contacts the valve body 7 is a valve body contact portion 11 ⁇ / b> A that is bent at a substantially right angle from a substantially horizontal portion that is pivotally supported by the pin P.
- the detection rod 11 is formed in a substantially L shape.
- the detection rod 11 is made to contact the protrusion part 10 provided in the valve body 7, it is made to contact the convex part 7b of the valve body 7 in this example.
- this embodiment is the same as the above embodiment in that the one end side 11A of the detection rod 11 is in contact with the valve body 7 at a portion opposite to the bearing 8 of the valve body 7.
- the valve body contact portion 11A of the detection rod 11 can be formed in a spatula shape as shown in FIG.
- the valve body contact portion 11A can be a separate member from the portion pivotally supported by the pin P, but the same member can also be bent into a substantially L shape.
- the arrangement of the delay mechanism 18 that operates the limit switch 17 after a predetermined time has elapsed since the rotation of the detection rod 11 can be changed.
- a lever 36 is provided in contact with the end 11B opposite to the end of the detection rod 11 in contact with the valve body 7, and the lever 36 has a rotary damper or the like on its rotating shaft 36c.
- the delay mechanism 18 is disposed, and the limit switch 17 that can be contacted and separated is disposed at the end 36b.
- FIG. 21 As an example of providing the delay mechanism 18 directly on the lever 36 in contact with the detection rod 11, there is a form shown in FIG.
- a weight (W) 33 is provided at the end 36a of the lever 36 on the side in contact with the detection rod 11, and the lower side of the lever 36 is brought into contact with the detection rod 11 via the weight (W) 33, and the lever The limit switch 17 is disposed below the lever 36 at the end 36 b opposite to the side 36 a that contacts the detection rod 11.
- the lever 36 is brought into direct contact with the detection rod 11 on the upper side of the end portion 36 a in contact with the detection rod 11, and the end portion 36 b on the opposite side of the side 36 a in contact with the detection rod 11 of the lever 36.
- the limit switch 17 is disposed above the lever 36.
- a weight (W) 33 is provided at the end 11 ⁇ / b> B of the detection rod 11, and the detection prevention 11 is biased to the side where the valve body 7 is opened.
- an auxiliary weight 37 for urging the lever 36 in the horizontal direction is provided.
- the limit switch 17 is normally turned off to be in a signal non-output state, and the flowing water detection device A is activated in response to the limit switch 17 being turned on and being in a signal output state. Note that when the detection rod 11 shown in FIG. 22 (B) is tilted and the detection rod 11 shown in FIG. 22 (A) returns to the horizontal state, the lever 36 is also returned to the horizontal state by the auxiliary weight 37. .
- the limit switch 17 shown in FIG. 21 or 22 can be the limit switch 17 shown in FIG. Further, the ends 36 a and 36 b of the lever 36 can be provided with projections like a flange portion F provided at the tip of the detection rod 11. 21 and 22, the detection rod 11 and the lever 36 are provided on a straight line, but the length direction of the lever 36 can be changed with respect to the length direction of the detection rod 11. For example, as shown in FIG. 23, the end 11B can be arranged so that the length direction of the lever 36 is perpendicular to the length direction of the detection rod 11 shown in the figure.
- the rotation operation of the detection rod 11 can be made slow with respect to the opening operation of the valve body 7.
- the detection rod 11 is rotated together with the opening of the valve body 7 while keeping the detection rod 11 in contact with the valve body 7 without slowing the rotation of the detection rod 11, the detection rod 11 in contact with the valve body 7. It is necessary to take measures to reduce the frictional resistance of the end 11A of the detection rod 11 in order to ensure the smooth operation of the end 11A.
- the detection rod 11 rotates with a delay from the opening of the valve body 7, it is not necessary to take such measures when the lever 36 provided with the rotary damper 18 is employed.
- the rotation of the lever 36 has an advantage that the movement is easy to understand and the operation can be easily confirmed.
- the installation location can be made compact by using the rotary damper 18.
- a Flowing water detection device 1 Body 1a Insertion hole 1b Open end 2 Housing 3 Drain valve 6 Valve seat 7 Valve body 7a Valve body 7b Convex part (skirt part, weight part) 8 Bearing 9 Valve rod 11 Detection rod 12, 13 Spring seat 14 Coil spring (biasing member) 15 Limit switch pressing piece 16 Contact 17 Limit switch (switch device) 18 Delay mechanism 21 Retainer 22 Extend block 23 Seal member 26, 27 Washer 28 Detection rod 29 Coil spring (biasing member) 30 Step 31 Cylindrical elastic body (biasing member) 32 Magnet (biasing member) 33 weight (biasing member) 34 Bellows 36 Lever 36a, 36b End 36c Rotating shaft 37 Auxiliary weight
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Abstract
Description
本発明の流水検知装置では、一端側が弁体におけるその軸受けとは反対側部分に当接し弁体の開方向への回動と連動してスイッチ装置のオン/オフを切り換える検知棒を備える。そして付勢部材がその検知棒を弁体の開方向に付勢する。したがって従来の作動弁型の流水検知装置では二次側での流水が僅かで弁体の回動が小さくなるような場合であっても、本発明では付勢部材により検知棒を介して弁体を付勢して弁体に作用する閉止荷重を小さくすることで、弁体の開き角度を大きくすることができるようになり弁体の回動による流水の検知を機械的に正確に行うことが可能となる。
ここで、弁体におけるその軸受けとは反対側とは、流水の出口から弁体を見て少なくとも弁体の中心を軸に2分した場合に、軸受けが存在する側とは反対側であることを意味する。
弁体を回動させる差圧は、流体の流量と流体が通過する流路の面積、形状の影響を受けて変化する。そこで本発明では弁体の一次側面に本体内部の流路にオリフィスを形成するスカート部を設けることで流体の通過面積を減少させ、小さな流水の変化を増幅することで弁体の開き角度を大きくすることができる。
二次側配管の継ぎ目等からの微小な水漏れにより二次側配管が減圧状態となったり、他系統の流水検知装置の作動によりポンプが起動することで配管内に水の振動が発生したりすると、非火災時であっても一時的に弁体が開放することがある。このように非火災時に一時的に弁体が開放する場合であっても、本発明では錘部によって直ちに閉弁状態に復帰させることができ、閉止時のシール性を確保することができる。
錘部が弁体の一部を構成するため、錘部として別部材を用意する必要がなく無用な部品増を回避することができる。
スカート部が錘部を兼ねるため、錘部として別部材を用意する必要がなく無用な部品増を回避できる。
錘部が金属製であるため、可動する弁体に付属する錘部に適した剛性と重量の双方を持たせることができ、非火災時の弁体を閉弁状態に復帰させて閉止するのに必要なシール性を確保することができる。また形状加工も容易であるため様々な構造の弁体に適用することができる。
本発明によれば、錘部に適した剛性と重量の双方を有し安価に実現することができ、さらに防錆被覆層により錆びを防止できる。この防錆被覆層は塗層として構成することができ、具体的には電着塗装層、粉体塗装層にて実施できる。によって錆びを防止することができる。
付勢部材をゴム状弾性体、ばねのような弾性部材、錘、磁石とすることで、簡易な構成で付勢部材を実現することができる。
付勢力調整部によって弁体の開方向に付勢する付勢力を調整できるため、弁体を開放する差圧や開き角度との関係等、様々な使用条件に応じて検知棒に対する付勢力を調整することができる。
回動規制部が検知棒の回動角を弁体の回動角よりも小さくするので、開放した弁体が検知棒の付勢を受けることがなく弁体の回動動作の妨げにならない。
検知棒を二次側室から一次側室に移動させて設けたため、流水検知装置内にゴミなどが入った場合を想定しても検知棒の作動の信頼性を高めることができる。
一端側が検知棒に接触し、他端側がスイッチ装置に接触し、中央部の回動軸にロータリーダンパーを備えるレバーを設けることで、弁体の開放動作に対して検知棒の回動動作を緩慢にすることができる。検知棒の回動動作を緩慢にすることができるため、弁体と接する検知棒の端にコーティング等の摩擦軽減措置を講じる必要がない。
また、レバーの回動が分かりやすく動作確認がし易い。さらに、ロータリーダンパーはコンパクトにすることができ、遅延機構の設置場所を小さくすることができる。
これによれば、本体の外部に付勢部材を配置できるので修理や交換を本体の外部で容易に行うことができる。
より詳細には、この突出部10は弁体7の周縁のうちでも、流水の出口方向から見て、弁体7における軸受け8を設けた側とは反対側、換言すれば、弁体7における弁棒9と接触する側とは反対側に設けられている。そして、突出部10における弁座6の側の面には検知棒11の端部11Aが接触している。この検知棒11は中間でピンPにより軸支されており(図4)、図中において上下に回動動作可能な構成である。検知棒11の端部11Aが弁体7に接触している状態では検知棒11は略水平状態となっている。検知棒11は弁体7に接触しており弁体7の開方向への回動によりスイッチ装置(後述するリミットスイッチ17)をオンする検知棒として機能するものである。
リテーナー21と接するワッシャー27は、水圧が作用するシール部材23の鍔部24を凹凸のないフラットな平面で受け止めるためのものである。このワッシャー27が無いと、本体1の側からの水圧により鍔部24がリテーナー21の軸受け21Aに食い込んで破断するおそれがあるが、ワッシャー27により軸受け21Aを含むリテーナー21の凹凸を鍔部24に対して露出させない本実施形態ではその不都合が生じない。したがってワッシャー27の外径は鍔部24の外径と等径としている。他方、ワッシャー27の内径は検知棒11の回動動作を阻害しない隙間ができる程度の大きさとなっている。
シール部材23と接するワッシャー26は、内径が検知棒11と同程度で、外径がワッシャー27よりも小さいものとなっている。このワッシャー26が無い場合、水圧を受ける鍔部24がワッシャー27と検知棒11との間の隙間に食い込んで破断するおそれがあるが、内径が検知棒11と同程度のワッシャー26によってその隙間を塞ぐ本実施形態ではその不都合が生じない。
また、図18で示すようにバネ座12,13にそれぞれ同極で対向する磁石32を付勢部材として取付けて、磁石32,32の間に生じる斥力を付勢力として利用することもできる。この場合、柱部12Cの上端に取付けた磁石32は対向する柱部13Cとともに検知棒11の逆転規制部としても機能している。
さらに図19で示すようにバネ座12に錘33を付勢部材として取付けて、錘33の荷重を付勢力として利用することもできる。この場合、錘33は金属製とすることができ、また柱部13Cとともに検知棒11の逆転規制部としても機能する。
なお、コイルバネ14、筒状の弾性体31、磁石32、錘33の何れかを組み合わせて付勢部材とすることもできる。
本例のように検知棒11を一次側室Iに設ける場合、検知棒11が弁体7の裏側の直下にあり上から落ちてくる流水中のゴミが検知棒11とその周辺に溜まり難いので長期に亘り検知棒11を正確に動作させることができる。
例えば図21で示すように、検知棒11の弁体7と接触している端と反対側の端部11Bに接するレバー36を設け、このレバー36には、その回動軸36cにロータリーダンパー等の遅延機構18を配置し、その端部36bに接離可能なリミットスイッチ17を配置する。
図21では、レバー36の検知棒11と接する側の端部36aに錘(W)33を設け、この錘(W)33を介してレバー36の下側を検知棒11に接触させるとともに、レバー36の検知棒11と接する側36aと反対側の端部36bでは、レバー36の下側にリミットスイッチ17を配置する。
これに対し、図22では、レバー36の検知棒11と接する側の端部36aの上側で直接検知棒11と接触させ、レバー36の検知棒11と接する側36aと反対側の端部36bでは、レバー36の上側にリミットスイッチ17を配置する。この図22の例では、検知棒11の端部11Bに錘(W)33を設けて弁体7が開放する側に検知防11を付勢している。また、レバー36を水平方向に付勢するための補助錘37を設けている。
まず図21で示す機構では、常時において図21(A)の状態にあるが、図示外の弁体7が開放すると、錘(W)33の作用により検知棒11の端11Bが図中下方に回動しようとする。しかしレバー36の回動軸36cに設けたロータリーダンパー18が回転運動に制動力を作用させる。このためレバー36の回動動作は検知棒11の回動とは切り離されて緩慢になる。そしてレバー36がゆっくりと回動し始めると、レバー36の端36bがリミットスイッチ17から離れ、リミットスイッチ17の作動状態が解除され信号が非出力状態となる(図21(B))。この例では常時においてリミットスイッチ17がオンされて信号出力状態にあり、リミットスイッチ17がオフになり信号非出力状態となったことを受けて流水検知装置Aが作動する。
なお、図22(B)で示す検知棒11が傾斜した状態から、図22(A)で示す検知棒11が水平の状態に戻る際に、補助錘37によってレバー36も水平の状態に復帰する。
また、レバー36の回動はその動きが分かりやすく、動作確認がし易いといった利点がある。さらに、ロータリーダンパー18を用いることで設置場所をコンパクトにすることができる。
1 本体
1a 挿通穴
1b 開口端部
2 筐体
3 排水弁
6 弁座
7 弁体
7a 弁本体
7b 凸部(スカート部、錘部)
8 軸受け
9 弁棒
11 検知棒
12、13 バネ座
14 コイルバネ(付勢部材)
15 リミットスイッチ押圧片
16 接触子
17 リミットスイッチ(スイッチ装置)
18 遅延機構
21 リテーナー
22 エクステンドブロック
23 シール部材
26、27 ワッシャー
28 検知棒
29 コイルバネ(付勢部材)
30 段部
31 筒状弾性体(付勢部材)
32 磁石(付勢部材)
33 錘(付勢部材)
34 ベローズ
36 レバー
36a,36b 端部
36c 回動軸
37 補助錘
Claims (13)
- 消火設備配管に接続する筒状の本体と、本体の内部に設ける逆止弁構造の弁体と、弁体の回動による流水を検知して所定の信号を出力するスイッチ装置とを備える流水検知装置において、
一端側が弁体におけるその軸受けとは反対側部分に当接し弁体の開方向への回動によりスイッチ装置のオン/オフを切り換える検知棒と、弁体の開方向に検知棒を付勢する付勢部材とを備えることを特徴とする流水検知装置。 - 弁体の一次側面に弁体の回動によって本体内部にオリフィス状の流路を形成する突起状のスカート部を設ける第1項記載の流水検知装置。
- 弁体に弁体を閉方向に付勢する錘部を設ける第1項又は第2項記載の流水検知装置。
- 錘部が弁体の二次側面に形成したドーム状の突出部である第3項記載の流水検知装置。
- 錘部を、弁体の一次側面に本体内部にオリフィスを形成する突起状のスカート部にて形成した第3項記載の流水検知装置。
- 錘部が金属製である第3項又は第4項記載の流水検知装置。
- 錘部が鉄製の錘本体の表面に防錆被覆層電着塗装層を形成したものである第3項記載の流水検知装置。
- 付勢部材がゴム状弾性体、ばね、錘、磁石の何れかである第1項~第7項何れか1項記載の流水検知装置。
- 付勢部材が弁体の開方向に検知棒を付勢する付勢力調整部を備える第1項~第8項何れか1項記載の流水検知装置。
- 検知棒の回動角を弁体の回動角よりも小さくする回動規制部を有する第1項~第9項何れか1項記載の流水検知装置。
- 検知棒を一次側室に設け、検知棒の先端を弁体と接触させる第1項~第10項何れか1項記載の流水検知装置。
- 一端側が検知棒に接触し、他端側がスイッチ装置に接触し、中央部の回動軸にロータリーダンパーを備えるレバーを設けた第1項~第11項何れか1項記載の流水検知装置。
- スイッチ装置が本体の外部に配置されており、
検知棒のスイッチ側の他端部がスイッチ装置に配置されており、
付勢部材が検知棒のスイッチ側の他端部を付勢するように配置される第1項~第12項何れか1項記載の流水検知装置。
Priority Applications (5)
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KR1020117029050A KR101820706B1 (ko) | 2009-06-17 | 2010-06-15 | 유수검출장치 |
CN201080027388.4A CN102802735B (zh) | 2009-06-17 | 2010-06-15 | 流水检测装置 |
US13/376,215 US9079053B2 (en) | 2009-06-17 | 2010-06-15 | Water flow detection device |
JP2011519792A JP5520296B2 (ja) | 2009-06-17 | 2010-06-15 | 流水検知装置 |
TW099119637A TWI566805B (zh) | 2009-06-17 | 2010-06-17 | Water detection device |
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JPPCT/JP2009/061052 | 2009-06-17 | ||
PCT/JP2009/061052 WO2010146679A1 (ja) | 2009-06-17 | 2009-06-17 | 流水検知装置 |
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WO2010147112A1 true WO2010147112A1 (ja) | 2010-12-23 |
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PCT/JP2009/061052 WO2010146679A1 (ja) | 2009-06-17 | 2009-06-17 | 流水検知装置 |
PCT/JP2010/060114 WO2010147112A1 (ja) | 2009-06-17 | 2010-06-15 | 流水検知装置 |
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PCT/JP2009/061052 WO2010146679A1 (ja) | 2009-06-17 | 2009-06-17 | 流水検知装置 |
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US (1) | US9079053B2 (ja) |
KR (1) | KR101820706B1 (ja) |
CN (1) | CN102802735B (ja) |
TW (3) | TWI503144B (ja) |
WO (2) | WO2010146679A1 (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102364184B (zh) * | 2011-10-21 | 2013-05-29 | 宁波东灵水暖空调配件有限公司 | 排烟防火阀全自动二次动作执行机构 |
CN102937210B (zh) * | 2012-11-16 | 2014-04-09 | 宁波东灵水暖空调配件有限公司 | 防火排烟阀的执行机构 |
JP1549172S (ja) * | 2015-10-08 | 2019-04-22 | ||
US10596401B2 (en) | 2016-08-11 | 2020-03-24 | Victaulic Company | Modular valve assembly |
KR101883877B1 (ko) * | 2016-12-13 | 2018-08-01 | 주식회사 우당기술산업 | 유수검지장치가 구비된 소방설비용 알람밸브 |
US20180193681A1 (en) | 2017-01-06 | 2018-07-12 | Globe Fire Sprinkler Corporation | Control valve assembly with test, drain and adjustable pressure relief valve |
CN107050702B (zh) * | 2017-03-10 | 2022-02-25 | 魏吴际 | 一种可重复利用的多功能小型投掷型灭火器 |
DE102017117417A1 (de) | 2017-08-01 | 2019-02-07 | Minimax Gmbh & Co. Kg | Feuerlöschanlagenventil, insbesondere Nassalarm-, Trockenalarm-, oder Sprühwasserventil sowie Steuermodul für selbiges und Feuerlöschanlage mit selbigem |
DE102017117426A1 (de) * | 2017-08-01 | 2019-02-07 | Minimax Gmbh & Co. Kg | Feuerlöschanlagenventil |
WO2019190609A1 (en) | 2018-03-29 | 2019-10-03 | Globe Fire Sprinkler Corporation | Combination control and check valve assembly for a wet piping system |
CN111188939A (zh) * | 2018-11-14 | 2020-05-22 | 中国石油化工股份有限公司 | 一种基于电磁铁弹簧组合式闸阀快速切断执行机构 |
JP7197127B2 (ja) * | 2018-12-28 | 2022-12-27 | 千住スプリンクラー株式会社 | 流水検知装置 |
JP7135249B2 (ja) * | 2018-12-28 | 2022-09-13 | 千住スプリンクラー株式会社 | 流水検知装置 |
CA3151291A1 (en) | 2019-09-20 | 2021-03-25 | Yoram Ringer | Ball valve assembly |
US11874149B2 (en) | 2020-04-27 | 2024-01-16 | Rain Bird Corporation | Irrigation flow sensor systems and methods of detecting irrigation flow |
KR102618175B1 (ko) * | 2022-02-22 | 2023-12-28 | 주식회사 브이티엘 | 실링에어의 누설을 감지 및 방지할 수 있는 에어실링댐퍼 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001000574A (ja) * | 1999-06-22 | 2001-01-09 | Hochiki Corp | スプリンクラー消火設備 |
JP2005253640A (ja) * | 2004-03-11 | 2005-09-22 | Senju Sprinkler Kk | 流水検知装置 |
JP2007003377A (ja) * | 2005-06-24 | 2007-01-11 | Itachibori Mfg Co Ltd | 消火設備用流水検知装置 |
JP2007050067A (ja) * | 2005-08-17 | 2007-03-01 | Senju Sprinkler Kk | 流水検知装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3540463B2 (ja) * | 1995-10-06 | 2004-07-07 | ホーチキ株式会社 | 流水検知装置 |
JP2918479B2 (ja) | 1995-10-13 | 1999-07-12 | 慶晃 久保 | スプリンクラー用自動警報弁 |
JP3540467B2 (ja) * | 1995-10-30 | 2004-07-07 | ホーチキ株式会社 | スプリンクラー消火設備 |
JP3679477B2 (ja) * | 1995-11-21 | 2005-08-03 | ホーチキ株式会社 | 流水検知装置 |
JP3865745B2 (ja) * | 2004-08-20 | 2007-01-10 | 株式会社立売堀製作所 | 消火設備用流水検知装置 |
JP2005114174A (ja) * | 2004-11-19 | 2005-04-28 | Hochiki Corp | 流水検知装置 |
US7533693B2 (en) * | 2005-10-31 | 2009-05-19 | Ga Industries, Llc | Side-mounted position indicator for flapper check valve |
JP2008029876A (ja) * | 2007-10-19 | 2008-02-14 | Senju Sprinkler Kk | 流水検知装置 |
-
2009
- 2009-06-17 WO PCT/JP2009/061052 patent/WO2010146679A1/ja active Application Filing
- 2009-07-08 TW TW098123032A patent/TWI503144B/zh active
- 2009-07-08 TW TW104128957A patent/TWI590851B/zh active
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2010
- 2010-06-15 CN CN201080027388.4A patent/CN102802735B/zh active Active
- 2010-06-15 US US13/376,215 patent/US9079053B2/en not_active Expired - Fee Related
- 2010-06-15 KR KR1020117029050A patent/KR101820706B1/ko active IP Right Grant
- 2010-06-15 WO PCT/JP2010/060114 patent/WO2010147112A1/ja active Application Filing
- 2010-06-17 TW TW099119637A patent/TWI566805B/zh active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001000574A (ja) * | 1999-06-22 | 2001-01-09 | Hochiki Corp | スプリンクラー消火設備 |
JP2005253640A (ja) * | 2004-03-11 | 2005-09-22 | Senju Sprinkler Kk | 流水検知装置 |
JP2007003377A (ja) * | 2005-06-24 | 2007-01-11 | Itachibori Mfg Co Ltd | 消火設備用流水検知装置 |
JP2007050067A (ja) * | 2005-08-17 | 2007-03-01 | Senju Sprinkler Kk | 流水検知装置 |
Also Published As
Publication number | Publication date |
---|---|
TW201125612A (en) | 2011-08-01 |
CN102802735A (zh) | 2012-11-28 |
TWI503144B (zh) | 2015-10-11 |
TW201601797A (zh) | 2016-01-16 |
KR101820706B1 (ko) | 2018-01-22 |
US9079053B2 (en) | 2015-07-14 |
TWI590851B (zh) | 2017-07-11 |
TW201103599A (en) | 2011-02-01 |
KR20120036823A (ko) | 2012-04-18 |
CN102802735B (zh) | 2015-06-24 |
TWI566805B (zh) | 2017-01-21 |
WO2010146679A1 (ja) | 2010-12-23 |
US20120103637A1 (en) | 2012-05-03 |
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