JP4773231B2 - Rotating watering device - Google Patents

Description

  The present invention relates to a swirling watering device that sprinkles fire-extinguishing water while swirling a watering nozzle.

  A conventional water discharge unit includes a vertical pipe, an L-shaped pipe that is rotatably connected to an opening tip of the vertical pipe, and a water discharge nozzle connected to the tip of the L-shaped pipe. The vertical pipe is connected to the sprinkler pipe through an electric valve. The worm is fixed coaxially around the vertical portion of the L-shaped pipe, and a worm wheel attached to the shaft of the nozzle turning motor meshes with the worm. Accordingly, when the nozzle turning motor rotates, the L-shaped pipe and the water discharge nozzle connected to the tip of the L-shaped pipe rotate horizontally (around the vertical axis). (For example, refer to Patent Document 1).

JP-A-8-38645

  In the conventional water discharge unit, the nozzle turning motor is used to drive the turning of the water discharge nozzle. In addition to the nozzle turning motor, the electric wiring is required and the drive control means is required, resulting in an increase in cost. There was a problem of ending up. In addition, since the pipe direction of the vertical pipe is the vertical direction, the axial direction of the nozzle turning motor is the horizontal direction, so the unit size becomes large and the installation space cannot be saved. there were.

  The present invention has been made in order to solve the above-described problems, omits a turning motor using a drive cylinder using fire extinguishing water as a drive source, and further sets the reciprocating direction of the drive cylinder to a water spray gun. An object of the present invention is to obtain a swirl-type water spray gun apparatus that can reduce the cost and reduce the installation space in parallel with the pipe direction of the vertical pipe.

The swirling watering gun apparatus according to the present invention includes a vertical pipe that is arranged with a pipe line in a vertical direction and supplied with fire-extinguishing water, and a water nozzle connected to the upper opening of the vertical pipe via a vertical pipe. and watering gun having a portion of the fire-extinguishing water as a driving source, and configured driving cylinder so as to reciprocate by changing the feed direction of the digestion fire water, the extinguishing water to the upper Symbol driving cylinder And a flow path switching valve drive mechanism for transmitting the reciprocating force of the driving cylinder to the flow path switching valve to switch the supply direction of the fire-extinguishing water to the driving cylinder. And a power transmission mechanism unit that converts the reciprocating force of the driving cylinder into a rotational force around the pipe direction of the vertical pipe and transmits the rotational force to the vertical pipe to turn the water spray gun. . The drive cylinder is disposed on the back side of the vertical pipe so that the reciprocating direction thereof is parallel to the pipe direction of the vertical pipe, and the flow path switching valve is moved in the direction of the valve body. Are arranged in line with the vertical pipe and the drive cylinder on the side opposite to the vertical pipe of the drive cylinder so as to be parallel to the pipe direction of the vertical pipe.

  According to the present invention, the reciprocating direction of the drive cylinder and the moving direction of the valve body of the flow path switching valve are parallel to the pipe direction of the vertical pipe of the water spray gun, so that the installation space can be saved. It is done. Moreover, since a part of sprinkling water is utilized as a drive source of a drive cylinder, components, such as a drive motor, become unnecessary and cost reduction is achieved.

  FIG. 1 and FIG. 2 are a side sectional view and a partially broken top view, respectively, schematically showing the overall configuration of a swirling watering gun apparatus according to an embodiment of the present invention. FIG. 3 is a side sectional view for explaining the operation of the shielding box in the turning-type water spray gun apparatus according to the embodiment of the present invention. FIG. 4 is a power transmission mechanism in the turning-type water spray gun apparatus according to the embodiment of the present invention. FIG. 5 is a cross-sectional view of an essential part for explaining a water gun connecting structure in a turning type water spray gun apparatus according to an embodiment of the present invention. FIG. 6 is a view for explaining the operation of the drive cylinder in the swirling watering gun apparatus according to the embodiment of the present invention. FIG. 6 (a) shows the uppermost drive cylinder, and FIG. b) shows the lowermost drive cylinder. FIG. 7 is a view for explaining the operation of the flow path switching valve in the swirling watering device according to the embodiment of the present invention. FIG. 7 (a) shows the uppermost flow path switching valve. (B) shows the lowermost channel switching valve.

  1 and 2, the swirling watering device is connected to a main pipe (not shown) via a control valve 2 and has a vertical pipe 1 having a vertical pipe line direction and a bearing section 3 on the vertical pipe 1. A water spray gun 5 connected to be rotatable around the vertical axis via the, a turning mechanism portion 10 for rotating the water spray gun 5 around the vertical axis, and a concealment box 45 for storing them.

  The watering gun 5 includes a vertical pipe 6 and a watering nozzle 7 bent from the vertical pipe 6 in a predetermined direction. As shown in FIG. 5, the water spray gun 5 is configured such that the pipe line direction of the vertical pipe 6 coincides with the pipe line direction of the vertical pipe 1, and the vertical pipe 6 is opened to the upper opening of the vertical pipe 1 through the bearing portion 3. It is connected to the part so as to be rotatable around the pipe line direction. Then, O-rings 4a and 4b are interposed between the vertical pipe 6 and the vertical pipe 1 so that the fire-extinguishing water does not leak out.

  As shown in FIG. 1, the swivel mechanism unit 10 includes a driving cylinder 11 configured to reciprocate by changing a supply direction of the extinguishing water using a part of the extinguishing water as a driving source, and a driving cylinder. A flow path switching valve 20 for switching the supply direction of fire extinguishing water to the flow path switching valve drive mechanism for transmitting the reciprocating force of the driving cylinder 11 to the flow path switching valve 20 and switching the flow path switching valve 20. And a power transmission mechanism 34 that converts the reciprocating force of the driving cylinder 11 into the rotational force around the pipe 6 of the water spray gun 5 and transmits it to the vertical pipe 6.

Next, each configuration of the turning mechanism unit 10 will be described with reference to FIGS. 4 to 7.
The driving cylinder 11 includes a piston 12 and a cylinder 18 attached to the piston 12 so as to be capable of reciprocating in the axial direction of the piston 12.
As shown in FIG. 6, the piston 12 has a large-diameter columnar piston portion 13, and is integrally formed on the front and back surfaces of the piston portion 13 coaxially and is formed in a cylindrical shape having a smaller diameter than the piston portion 13. And second pipes 14 and 15, and communication holes 16 and 17 are formed in the vicinity of the piston portion 13 of the first and second pipes 14 and 15, respectively.
The cylinder 18 is configured by closing both end openings of the cylindrical body 19c with first and second end plates 19a and 19b. In the cylinder 18, the first and second pipes 14 and 15 are inserted through the first and second end plates 19a and 19b, and the piston portion 13 passes through the cylinder 18 with the first cylinder chamber 18a and the second cylinder chamber 18b. It is attached to the piston 12 so as to define it. The first and second end plates 19a and 19b slide on the outer wall surfaces of the first and second pipes 14 and 15, and at the same time, the cylindrical body 19c slides on the outer wall surface of the piston portion 13 and the cylinder 18 Reciprocates in the axial direction of the piston 12. Each sliding part is provided with an O-ring so that the fire-extinguishing water does not leak out.

  As shown in FIG. 7, the flow path switching valve 20 includes a cylindrical valve body 21, end plates 22 a and 22 b that close both ends of the valve body 21, and drive shafts 24 a and 24 b at both ends. A valve body 23 disposed so that the drive shafts 24a and 24b are inserted into the end plates 22a and 22b, and the first chamber 25a, the second chamber 25b, and the third chamber 25c are defined in the valve body 21; It has. The drive shafts 24a and 24b slide on the inner wall surfaces of the end holes 22a and 22b. At the same time, the valve body 23 slides on the inner wall surface of the valve body 21, and the valve body 23 is the shaft of the valve body 21. Move back and forth in the direction. Each sliding part is provided with an O-ring so that the fire-extinguishing water does not leak out.

  Further, the water supply hole 26 is formed in the valve body 21 so as to face the second chamber 25 b regardless of the movement of the valve body 23. Further, the first water supply / drain hole 27 is formed in the valve main body 21 so as to face one of the first chamber 25a and the second chamber 25b by the movement of the valve body 23. Further, the second water supply / drain hole 28 is formed in the valve body 21 so as to face one of the second chamber 25 b and the third chamber 25 c by the movement of the valve body 23. Furthermore, the first drain hole 29 is formed in the valve body 21 so as to face the first chamber 25 a regardless of the movement of the valve body 23, and the second drain hole 30 is the first regardless of the movement of the valve body 23. It is drilled to face the three chambers 25c.

As shown in FIG. 6, the flow path switching valve drive mechanism 31 has first and second end plates 19 a, 19 b on the outside of the cylinder 19 c of the cylinder 18 with the length direction aligned with the axial direction of the cylinder 18. A support bar 32 laid between them and a pair of hammers 33a and 33b attached to the support bar 32 so as to be position adjustable are provided.
As shown in FIGS. 4 to 6, the power transmission mechanism 34 is externally fitted to the movable rack 35 formed integrally with the cylindrical body 19 c of the cylinder 18 and the vertical pipe 6 of the water spray gun 5, and is coaxial. A first bevel gear 36 attached to the first bevel gear 36; a spur gear 37 that meshes with the movable rack 35; and a second bevel gear 39 that is coaxially connected to the spur gear 37 by a shaft 38 and meshes with the first bevel gear 36. It is equipped with. The movable rack 35 is disposed on the opposite side of the support bar 32 with the cylinder 18 in between.

  The swivel mechanism unit 10 configured in this way is arranged in the vertical pipe 6 with the axial direction of the piston 12 parallel to the axial direction of the vertical pipe 1 and the movable rack 35 facing the vertical pipe 6 side of the water spray gun 5. The first bevel gear 36 is disposed in proximity to the attached first bevel gear 36. A spur gear 37 and a second bevel gear 39 connected by the shaft 38 are arranged to mesh with the movable rack 35 and the first bevel gear 36, respectively. Further, the position of the pair of hammers 33a and 33b is adjusted so that they are separated from each other by a predetermined distance, and the flow path switching valve 20 is arranged between the pair of hammers 33a and 33b with the axial direction of the valve body 23 parallel to the axial direction of the piston 12. It arrange | positions so that it may be located. The second water supply / drain hole 28 is connected to the first pipe 14 of the piston 12 by the first pipe 40, and the first water supply / drain hole 27 is connected to the second pipe 15 of the piston 12 by the second pipe 41. Further, the water supply hole 26 is connected to the vertical pipe 1 by a third pipe 42. A turning speed adjustment valve 43 is disposed in the middle of the path of the third pipe 42.

  The concealment box 45 has an opening for exposing the water spray nozzle 7 of the water spray gun 5, a main body portion 46 disposed so as to cover the water spray gun 5 and the swivel mechanism portion 10, and the main body portion 46 around the shaft 47. A cover 48 that is movably attached and opens and closes the opening of the main body 46. The cover 48 closes the opening of the main body 46 when the fire-extinguishing water is not sprayed. When the fire-extinguishing water is sprinkled, the cover 48 receives the pressure of the fire-extinguishing water sprayed from the sprinkling nozzle 7 and rotates around the shaft 47. Then, the opening of the main body 46 is opened.

Next, the operation of the swirling watering device will be described.
First, at the normal time, the cover 48 of the concealment box 45 closes the opening of the main body 46, and the watering gun 5 and the turning mechanism 10 are concealed. Further, the turning speed adjustment valve 43 is opened at a predetermined opening.

  Next, when a fire is detected, the control valve 2 is opened and fire-extinguishing water is supplied from the vertical pipe 1 to the water spray gun 5. Then, when fire water is sprayed from the water spray nozzle 7, the fire water hits the cover 48. Therefore, as shown by a solid line in FIG. 3, the cover 48 is rotated around the shaft 47 by the pressure of the fire extinguishing water. Thereby, the watering nozzle 7 is exposed and watering of the fire-extinguishing water is started.

  At the same time, a part of the fire extinguishing water is supplied from the vertical pipe 1 to the flow path switching valve 20 via the third pipe 42. For example, as shown in FIG. 7A, the fire extinguishing water is guided into the second chamber 25b of the valve body 21 from the water supply hole 26 and fills the second chamber 25b. Next, as shown in FIG. 6A, the fire-extinguishing water is led from the first water supply / drain hole 27 to the second pipe line 15 via the second pipe 41, and from the communication hole 17 into the second cylinder chamber 18b. To be supplied. When the fire extinguishing water is filled in the second cylinder chamber 18b, the pressure of the fire extinguishing water acts on the second end plate 19b, and the cylinder 18 is guided to the first and second pipes 14 and 15, 6 (a), move downward.

  By the movement of the cylinder 18 of the driving cylinder 11, the volume of the first cylinder chamber 18a is reduced and the volume of the second cylinder chamber 18b is increased. Therefore, the fire-extinguishing water in the first cylinder chamber 18a passes through the first conduit 14 from the communication hole 16, passes through the first pipe 40, flows into the third chamber 25c from the second water supply / drainage hole 28, and enters the second drainage hole. 30 is drained.

  Then, as shown in FIG. 6B, when the cylinder 18 is lowered to the lowest position, the hammer 33 a is lowered in conjunction with the lowering of the cylinder 18. Therefore, the hammer 33a pushes down the drive shaft 24a as shown in FIG. Thereby, the valve body 23 is lowered, the first water supply / drain hole 27 is connected to the first chamber 25a, and the second water supply / drain hole 28 is connected to the second chamber 25b. Therefore, as shown in FIG. 6B and FIG. 7B, the fire-extinguishing water is guided from the water supply hole 26 into the second chamber 25b of the valve body 21 and is then supplied from the second water supply / drain hole 28 to the first. It is guided to the first pipe line 14 through the pipe 40 and supplied from the communication hole 16 into the first cylinder chamber 18a. When the fire extinguishing water is filled in the first cylinder chamber 18a, the pressure of the fire extinguishing water acts on the first end plate 19a, and the cylinder 18 is guided to the first and second pipes 14 and 15, During (b) of 6, it moves upward.

  By the movement of the cylinder 18, the volume of the first cylinder chamber 18a is expanded, and the volume of the second cylinder chamber 18b is decreased. Therefore, the fire extinguishing water in the second cylinder chamber 18b passes from the communication hole 17 through the second pipe line 15, through the second pipe 41, flows into the first chamber 25a from the first water supply / drainage hole 27, and enters the first drainage hole. 29 is drained.

Then, as shown in FIG. 6A, when the cylinder 18 is raised to the uppermost position, the hammer 33 b is raised in conjunction with the rise of the cylinder 18. Therefore, the hammer 33b pushes up the drive shaft 24b as shown in FIG. As a result, the valve body 23 is raised, the first water supply / drain hole 27 is connected to the second chamber 25b, the second water supply / drain hole 28 is connected to the third chamber 25c, and the cylinder 18 moves down. Then, the cylinder 18 is raised and lowered.
In this way, the drive cylinder 11 reciprocates in the axial direction of the piston 12 by changing the supply direction of the fire-extinguishing water to the cylinder 18.

  Then, the movable rack 35 rises as the cylinder 18 rises, and rotates the spur gear 37 that meshes. The rotational torque of the spur gear 37 is transmitted to the second bevel gear 39 via the shaft 38 to rotate the first bevel gear 36 to be engaged. Similarly, the movable rack 35 descends as the cylinder 18 descends, and the spur gear 37 that engages rotates in the reverse direction. The rotational torque of the spur gear 37 is transmitted to the second bevel gear 39 via the shaft 38, and the meshed first bevel gear 36 is rotated in the reverse direction. Therefore, the first bevel gear 36 is rotated forward and backward by the lifting and lowering operation of the cylinder 18, and the vertical pipe 6 is rotated forward and backward around the vertical axis. Thereby, the water spray gun 5 turns around the vertical axis within a predetermined angle range, and fire-extinguishing water is sprayed from the water spray nozzle 7.

Thus, in this swirling method water spray gun apparatus, the drive cylinder 11 is disposed in the vicinity of the vertical pipe 6 in the reciprocating direction (axial direction) parallel to the axial direction of the vertical pipe 6 of the water gun 5. Yes. Further, the flow path switching valve 20 is arranged on the side opposite to the vertical piping of the driving cylinder 11 so that the reciprocating direction (axial direction) of the valve body 23 is parallel to the axial direction of the vertical piping 6 of the water spray gun 5. Has been. Therefore, the height of the swirling watering device is defined by the height of the watering gun 5, and the length W in the width direction of the swiveling mechanism 10 in FIG. 2 is minimized, so that the installation space can be saved. . As a result, the concealment box 45 can also be reduced, and the swirling watering device can be installed without obstructing the surrounding atmosphere.
Moreover, since a part of fire extinguishing water is used as a drive source of the turning mechanism part 10, equipments, such as a turning motor, become unnecessary and cost can be reduced.

Further, the movable rack 35 is attached to the cylinder 18, is coaxially attached to the vertical pipe 6 of the first bevel gear 36, and the spur gear 37 and the second bevel gear 39 are engaged with the movable rack 35 and the first bevel gear 36. Since it is attached, the power transmission mechanism 34 that can convert the vertical movement force of the cylinder 18 into the rotational force around the pipe line of the vertical pipe 6 is realized with a simple configuration.
The concealment box 45 closes the opening of the main body 46 when the fire extinguishing water is not sprayed. When the fire extinguishing water is sprinkled, the concealment box 45 receives the pressure of the fire extinguishing water sprayed from the sprinkling nozzle 7 and around the shaft 47. A cover 48 that rotates and opens the opening of the main body 46 is provided. Therefore, normally, the watering nozzle 7 and the like are concealed, and the surrounding atmosphere is not disturbed. In addition, when a fire occurs, the cover 48 is rotated around the shaft 47 by the pressure of the fire water sprayed from the water spray nozzle 7, and the opening of the main body 46 is automatically opened, so that fire water spraying can be started without any trouble. Is done.

  In addition, the hammers 33a and 33b that move up and down in conjunction with the raising and lowering operation of the cylinder 18 of the drive cylinder 11 directly press the drive shafts 24a and 24b to drive the flow path switching valve 20. It is simplified, and the cost is reduced accordingly.

Further, the distance between the pair of hammers 33a and 33b defines the up-and-down movement distance of the cylinder 18 of the drive cylinder 11 and the turning angle of the water spray gun 5. At this time, since the hammers 33a and 33b are attached to the support bar 32 so that the position of the hammers 33a and 33b can be adjusted, the turning angle of the water spray gun 5 can be easily adjusted.
In addition, since the turning speed adjustment valve 43 is arranged in the middle of the path of the third pipe 42, the turning speed of the watering gun 5 can be easily adjusted by adjusting the opening degree of the turning speed adjustment valve 43.

  It is assumed that the power transmission mechanism unit 34 is configured by a gear train including a movable rack 35, a spur gear 37, a second bevel gear 39, and a first bevel gear 36. However, the power transmission mechanism unit has this configuration. However, the present invention is not limited to this, as long as the lifting / lowering movement force of the driving cylinder 11 can be converted into a rotational force around the pipe line direction of the vertical pipe 6 and transmitted.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view schematically showing an overall configuration of a swirling watering device according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially broken top view schematically showing an overall configuration of a swirling watering gun apparatus according to an embodiment of the present invention. It is a sectional side view explaining the action | operation of the shielding box in the turning type water spray gun apparatus which concerns on one embodiment of this invention. It is a perspective view explaining the principal part of the power transmission mechanism part in the turning type watering gun apparatus which concerns on one embodiment of this invention. It is principal part sectional drawing explaining the connection structure of the watering gun in the turning type watering gun apparatus which concerns on one embodiment of this invention. It is a figure explaining operation | movement of the cylinder for a drive in the turning type watering gun apparatus which concerns on one embodiment of this invention. It is a figure explaining operation | movement of the flow-path switching valve in the turning type watering gun apparatus which concerns on one embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Vertical piping, 5 Water spray gun, 6 Vertical piping, 7 Water spray nozzle, 11 Drive cylinder, 12 Piston, 18 cylinder, 20 Flow path switching valve, 31 Flow path switching valve drive mechanism part, 34 Power transmission mechanism part, 35 Movable Rack, 36 first bevel gear, 37 spur gear, 39 second bevel gear, 45 concealment box, 46 main body, 48 cover.

Claims (3)

A vertical pipe that is arranged with the pipeline direction vertical and supplied with fire-extinguishing water;
A watering gun having a watering nozzle connected to the upper opening of the vertical pipe via a vertical pipe;
A drive cylinder configured to reciprocate by changing a supply direction of the fire-extinguishing water using a part of the fire-extinguishing water as a drive source;
A flow path switching valve for switching the supply direction of the fire-extinguishing water to the drive cylinder;
A flow path switching valve drive mechanism that transmits a reciprocating force of the driving cylinder to the flow path switching valve to switch a supply direction of the fire-extinguishing water to the driving cylinder;
A swivel-type water spray gun comprising: a power transmission mechanism unit that converts a reciprocating force of the drive cylinder into a rotational force around the pipe direction of the vertical pipe and transmits the torque to the vertical pipe to turn the water gun. A device,
The drive cylinder is disposed on the back side of the vertical pipe so that the reciprocating direction is parallel to the pipe direction of the vertical pipe,
The flow path switching valve is arranged in a line with the vertical pipe and the drive cylinder on the opposite side of the drive cylinder so that the moving direction of the valve body is parallel to the pipe direction of the vertical pipe. A swivel-type water spray gun device characterized by being arranged . The power transmission mechanism section includes a rack integrally formed with the driving cylinder with a tooth arrangement direction coinciding with a reciprocating direction of the driving cylinder, and a first fitting attached to the vertical pipe in an externally fitted state. 2. A bevel gear, a spur gear meshing with the rack, and a second bevel gear fixed to the spur gear coaxially and meshed with the first bevel gear. The swivel-type watering gun apparatus according to 1. A concealing box that houses the vertical pipe, the watering gun, the driving cylinder, the flow path switching valve, the flow path switching valve drive mechanism, and the power transmission mechanism;
The concealing box closes the concealing box when the fire-extinguishing water is not sprayed, and has a cover that is opened by receiving the pressure of the fire-extinguishing water sprayed from the sprinkling nozzle when the fire-extinguishing water is sprinkled. The swivel-type watering gun apparatus according to claim 1 or 2, wherein

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