JP2009185474A - Snow-melting water spray nozzle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the occurrence of the vertical loosening of a ring body in a snow-melting water spray nozzle which comprises a nozzle body 1, the ring body 2 fitted and placed in the upper opening of the nozzle body and having a groove 23 for a water spray hole formed in an inclined inner peripheral surface, and a mounting member for holding the ring body. <P>SOLUTION: The mounting member comprises an upper cover body 3 which is equipped with a flange-like cover portion and a central through-hole for mounting a valve body, the valve body 4 in which an adjusting valve is mounted, and a blind cover body 5. The valve body 4 is formed in such a manner as to be mounted in the central through-hole of the upper cover body and screwed and mounted into the screwing portion of the nozzle body, so as to hold and fix the upper cover body and the ring body. A locking protrusion is protrusively provided below the upper cover body. Radial protrusions 16, which make the locking protrusions locked in the direction of the horizontal rotation of the upper cover body in holding and mounting are provided at proper spacings so as not to inhibit a snow-melting water flow, toward a center from an inner peripheral surface of a water chamber portion of the nozzle body. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a snow spray nozzle for use in snow-melting roads.

  Snow-melting roads are constructed by burying water supply pipes that supply snowmelt water below the road surface, and water spray nozzles that spray snowmelt water from the water supply pipes onto the road surface at appropriate intervals. Conventionally, snow spray nozzles of various structures have been known. Basically, a water supply part connected to the water supply pipe, a water chamber part communicating with the water supply part, and upward from the water chamber part. A nozzle body having a water sprinkling portion formed radially is provided with a water amount adjusting mechanism for adjusting and blocking the water amount between the water supply portion and the water chamber.

  As disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 9-276748), a water spray nozzle for snow extinguishing which is a subject of the present application is provided with a water supply part and a water chamber part, and a nozzle having an open upper part of the water chamber part The main body, the water sprinkling part and the water amount adjusting mechanism are composed of a ring body and a mounting body.

  The ring body is attached to the upper opening of the nozzle body, and the groove for the water spray hole is formed on the inner peripheral inclined surface. The attachment body is equipped with a regulating valve, and the lower part is a water supply part and a water chamber part. It can be attached to the threaded part formed between the two, and it has a hook-like lid on the top, and the ring body is fitted and placed in the upper opening of the nozzle body, so that the attachment body presses the ring body The body is screwed and attached to the nozzle body, the watering hole is formed by the watering hole groove and the bowl-shaped lid part, and the exposed part of the watering hole groove on the outer peripheral side of the bowl-like lid part is the water spray outlet of the snowmelt water It will be. In particular, this snow-dissipating nozzle has the advantage that the sprinkling angle and the sprinkling radiation number can be selected by changing the ring body.

JP-A-9-276748

  By the way, in the snow-spraying water spray nozzle constituted by the nozzle body, the ring body, and the mounting body, the spraying direction of the snowmelt water is determined at the mounting position of the ring body, so in Patent Document 1, between the ring body and the nozzle body. An uneven locking structure is provided to prevent the ring body from rotating.

  However, even if the ring body is prevented from rotating, what is widely exposed on the road surface is the saddle-like lid portion of the mounting body, on which the vehicle travels. For this reason, there is a possibility that the mounting body rotates by rubbing the surface with the tire of the vehicle and the screwing with the nozzle body is loosened. When the screwing is loosened, the ring body is also depressed, and the vehicle is rattled up and down as the vehicle travels, and the watering state changes accordingly.

  In view of this, the present invention proposes a snow spray nozzle having a novel structure that prevents the ring body from being loosened in the vertical direction in the snow spray nozzle employing the ring body.

  The water spray nozzle for snow extinguishing according to the present invention includes a water supply portion that is connected to the water supply pipe at the bottom, a water chamber portion that is provided with a fitting mounting portion for the sprinkling ring opening at the top, and a water supply portion. A nozzle body provided with a threaded part between the nozzle and the water chamber, and a ring body in which an upper part of the nozzle body is fitted and placed with an O-ring interposed, and a groove for a water spray hole is formed on the inclined inner peripheral surface And a regulating valve, which is provided with a hook-shaped lid portion that forms a water spray port at an outer peripheral portion of the ring body in contact with the inclined inner circumferential surface of the ring body, and presses the ring body by screwing into the threaded portion. In a water spray nozzle for snow extinguishing constituted by a mounting member, the mounting member includes an upper lid body provided with the bowl-shaped lid portion and a central through hole for mounting the valve body, and a valve body equipped with a regulating valve, A nozzle cover that fits and fits into the central through hole of the upper lid body, and attaches the valve body to the central through hole of the upper lid body. The upper lid body and the ring body are pressed and fixed by being screwed to the threaded portion of the body, and a locking projection is provided below the upper lid body, and the inner circumferential surface of the water chamber portion of the nozzle body From the center to the center, a radial projection is provided at an appropriate interval so that the snowmelt water flow is not hindered, and the locking projection is locked in the horizontal rotation direction of the upper lid when the press-down is mounted. It is.

  Thus, the ring body has a small upper surface exposed area and has a sufficient rotation prevention force due to the frictional resistance of the O-ring. The stop protrusion is locked to the radial protrusion in the nozzle body, so that the rotation is prevented, and the valve body is not loosened in the normal use state such as traveling of the vehicle.

  Since the present invention employs the above-described configuration, even if the nozzle upper surface is rubbed with the tire of a vehicle traveling on the road surface and the turning force in the unscrewing direction of the valve body is applied, the exposed upper surface The upper lid that is positioned prevents the rotation of the valve body by locking the locking projection and the radial projection, so that the valve body does not rotate loosely and the valve body does not loosen. Was able to provide.

  Next, an embodiment of the present invention will be described. The water spray nozzle for snow extinguishing shown in the embodiment includes a nozzle body 1, a ring body 2, an upper lid body 3 as a mounting member, a valve body 4, and a mekura lid body 5.

  The nozzle body 1 is basically the same as the previous one, and is provided between the water supply unit 11 connected to the water supply pipe A, the water chamber unit 12 for watering, and the water supply unit 11 and the water chamber unit 12 below. And a fitting mounting portion 15 of the ring body 2 is provided by opening the upper portion of the water chamber portion 12 (upper opening portion 14).

  In particular, the radial protrusions 16 are arranged at appropriate intervals at predetermined positions on the inner peripheral surface of the water chamber portion 12 corresponding to the locking protrusions 34 described later from the inner peripheral surface of the water chamber portion 12 toward the center so that the snowmelt water flow is not inhibited. Is provided.

  The ring body 2 is fitted and placed in the upper opening 14 of the nozzle body 1, and an O-ring 21 is provided on the outer periphery to ensure water tightness, and a water spray hole groove 23 is formed on the inclined inner peripheral surface 22. Therefore, the angle of the inclined surface, the number of formations and the formation positions of the sprinkling hole grooves 23 are appropriately determined, and can be selected and adopted from various parts formed in advance.

  The upper lid body 3 includes a bowl-shaped lid portion 31 that contacts the inclined inner circumferential surface 22 of the ring body 2 and forms a water spout a at an outer peripheral portion of the peripheral edge, and a central through hole 32 for mounting the valve body 4. When the inner peripheral locking portion 33 is provided around the lower end portion of the central through hole 32 and is further attached to the nozzle body 1, the locking protrusion 34 reaching the interval between the radial protrusions 16 is connected to the inner peripheral locking portion. It is suspended from 33.

  The valve body 4 has the same basic structure as that of the prior art, and is provided with a water passage hole 42 in the cylindrical main body 41 and an open / close valve 43 that opens and closes the water passage hole 42. A screw portion 44 is provided.

  In particular, the head 45 of the cylindrical main body 41 is sized to be locked to the inner peripheral locking portion 33, and an O-ring 46 is mounted on the outer periphery of the head 45 between the upper lid 3 and the valve body 4. A watertightness is ensured, and a wrench hole 47 for screwing operation of the cylindrical main body 41 is formed on the upper surface of the head 45.

  Thus, in the snow spray nozzle, the ring body 2 is fitted and mounted in the upper opening 14 of the nozzle body 1, and the bowl-shaped lid portion 31 of the upper lid 3 is attached to the inclined inner peripheral surface 22 of the ring body 2. The water spout a is formed outside the peripheral edge of the bowl-shaped lid 31, the locking projection 34 is suspended between the radial projections 16, and the valve body 4 is inserted into the central through hole 32 of the upper lid 3. Then, the screw portion 44 is screwed to the screwing portion 13, the inner peripheral locking portion 33 is locked by the head 45, the upper lid body 3 and the ring body 2 are pressed toward the nozzle body 1, and then the valve The mecha lid body 5 is mounted in the space of the central through hole 32 above the body 4.

  The water spray nozzle for snow extinguishing assembled as described above is connected to the water supply pipe A embedded in the road surface in the same manner as before, and is installed with only the upper surface exposed in the shape of the road surface. The snowmelt water supplied from the water supply pipe A Enters the water chamber portion 12 through the water passage hole 42 opened by the on-off valve 43, further reaches the upper portion of the water chamber portion 12 through the gap between the radial protrusions 16, and discharges water from the water outlet a through the water hole 23. It is what is done.

  In particular, in the present invention, the upper lid body 3 and the ring body 2 are pressed to the nozzle body 1 side in a state where the locking projections 34 of the upper lid body 3 are engaged with the radial projections 16 of the nozzle body 1 fixed in the road surface. Even if the tire of the traveling vehicle rubs a portion exposed on the road surface, the ring body 2 has a small upper surface exposed area and is sufficiently prevented from rotating by the frictional resistance of the O-ring 21. The upper lid 3 with the large hook-shaped lid portion 31 exposed is not rotated because the locking projections 34 and the radial projections 16 are locked as described above. Therefore, there is no possibility that the valve body 4 is rotated and the screwed portion is loosened.

  Moreover, since one locking structure provided in the water chamber portion 12 of the nozzle body 1 is the radial protrusion 16, the adjacent gap of the radial protrusion 16 becomes a water passage, so that the valve body 4 can be mounted. For example, even if a locking structure is provided in any range (height / projection degree and position of the protrusion) in the water chamber portion 12, the flow of the snowmelt water is not hindered.

1 is an overall cross-sectional view of an embodiment of the present invention. Sectional drawing of the ring body. Sectional drawing of a cover body same as the above. Sectional drawing of the valve body. The perspective view of the ring body, an upper cover body, and a valve body. Sectional drawing of the nozzle body. The top view of the nozzle body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Nozzle main body 11 Water supply part 12 Water chamber part 13 Screwing part 14 Upper opening part 15 Fitting mounting part 16 Radial protrusion 2 Ring body 21 O-ring 22 Inclined inner peripheral surface 23 Groove for sprinkling holes 3 Upper cover body 31 Bowl-shaped cover Portion 32 Central through-hole 33 Inner peripheral locking portion 34 Locking protrusion 4 Valve body 41 Cylindrical main body 42 Water passage hole 43 Opening and closing valve 44 Screw portion 45 Head 46 O-ring 47 Wrench hole 5 Mekura lid

Claims (2)

  A water supply part connected to the water supply pipe below, a water chamber part provided with a fitting mounting part for the sprinkling ring opening upward, and a screwing part provided between the water supply part and the water chamber part A nozzle body, a ring body with an O-ring interposed in the upper opening of the nozzle body, a ring body in which a water spray hole groove is formed on the inclined inner peripheral surface, and a regulating valve, and the ring body A water spray for snow extinguishing comprising a hook-shaped lid portion that contacts the inclined inner peripheral surface and forms a water spout at an outer peripheral portion of the peripheral edge, and a mounting member that presses the ring body by screwing into the screwed portion In the nozzle, the mounting member is fitted and mounted in the upper lid body including the collar-shaped lid portion and the central through hole for mounting the valve body, the valve body having the adjustment valve installed therein, and the central through hole of the upper lid body. It is composed of a mecha lid body, and the valve body is mounted in the central through hole of the upper lid body and screwed into the threaded portion of the nozzle body. The upper lid body and ring body are formed so as to be pressed and fastened, and a locking projection is provided below the upper lid body, so that the snowmelt water flow is not hindered from the inner peripheral surface of the nozzle body toward the center. A water spray nozzle for snow extinguishing, characterized in that a radial projection is provided at an appropriate interval and the locking projection is locked in the direction of horizontal rotation of the upper lid when the pressing is mounted.   The water spray nozzle for snow squeezing according to claim 1, wherein an inner peripheral locking portion is provided around the lower end portion of the central through hole of the upper lid body, and a locking collar portion is provided around the upper portion of the valve body to form a pressing structure.

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