Cover member and watering nozzle

Abstract

To provide a cover member and a water spray nozzle capable of more uniformly spraying water, efficiently using heat of underground water, and suppressing excessive water spray.SOLUTION: This cover member is detachably provided on the 1a of an opening part of a water spray nozzle body 1, and has a water spray port part 2 for spraying water on a road surface, and the water spray port part 2 is integrally provided with a diffusion part 6 for spraying water on the road surface by diffusing the water in the direction crossing the collision direction by colliding the guided water.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a lid member and a sprinkler nozzle.

Background Art

[0002] Patent Document 1 discloses a sprinkler nozzle that sprinkles groundwater on a road to melt snow on the road surface.

[0003] A general sprinkler nozzle as disclosed in Patent Document 1 has a structure in which water is linearly sprinkled on the road surface from holes provided at 2 to 4 locations at equal intervals. In this case, on the road surface, there are a water-sprinkling area (where groundwater flows) where water is sprinkled and a non-water-sprinkling area (where groundwater does not flow or flows hardly) where water is not sprinkled.

[0004] Therefore, the way the snow melts becomes non-uniform. While warm groundwater with the ability to melt snow continues to flow in the water-sprinkling area where there is no snow to be melted, residual snow occurs in the non-water-sprinkling area. At present, the heat of groundwater is not effectively utilized, which causes over-sprinkling.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] The present invention has been made in view of the above-described present situation, and an object thereof is to provide a lid member and a sprinkler nozzle that have never existed before, which can perform more uniform water sprinkling, can efficiently use the heat of groundwater, and can suppress over-sprinkling.

Means for Solving the Problems

[0007] The gist of the present invention will be described with reference to the accompanying drawings.

[0008] The sprinkler nozzle body 1 has a male screw portion 11 that is screwed into a female screw portion 12 inside the sprinkler nozzle body 1, A lid member that is detachably provided at the opening 1a of the watering nozzle body 1, A channel 14 is suspended in the central part, and through this channel 14 It has a sprinkler nozzle 2 for spraying water onto the road surface, This sprinkler nozzle 2 is provided in a position that avoids the flow path 14, The water outlet 2 is designed to collide with the discharged water. Watering Diffuse in a direction intersecting the collision direction. can A diffusion section 6 is integrally provided. 、 The sprinkler section 2 has a lower inlet 4 into which water is introduced, and an upper outlet 5 which is wider than the lower inlet 4 and opens to the upper surface of the lid member, and the lower inlet 4 and the diffusion section 6 are arranged to overlap in a plan view. The female screw portion 12 and the male screw portion 11 of the sprinkler nozzle body 1 are screwed together to fix the sprinkler nozzle body 1. This relates to a lid member characterized by the following features.

[0009] Furthermore, claims 1 The lid member described is characterized in that the inner circumferential wall of the sprinkler port portion 2 is provided with a mortar-shaped inclined portion 7 that widens in diameter from the lower inlet 4 side toward the upper outlet 5 side.

[0010] Also, A lid member according to claim 1, characterized in that one lower inlet 4 is provided for each diffusion section 6. This relates to the matter.

[0011] Also, The lid member according to claim 2, characterized in that one lower inlet 4 is provided for each diffusion section 6. This relates to the matter.

[0012] Furthermore, the present invention relates to a lid member according to any one of claims 1 to 4, characterized in that the diffusion portion 6 is rod-shaped.

[0013] Furthermore, the present invention relates to a lid member according to any one of claims 1 to 4, characterized in that the diffusion portion 6 is flange-shaped.

[0014] Furthermore, the present invention relates to a watering nozzle characterized by comprising a lid member 3 as described in any one of claims 1 to 4, and a watering nozzle body 1 to which the lid member 3 is attached to the opening 1a. [Effects of the Invention]

[0015] Since the present invention is configured as described above, it is possible to achieve more uniform water spraying and efficiently utilize the heat of groundwater, resulting in a lid member and a water spraying nozzle that can suppress excessive water spraying, which has never existed before.

Brief Description of the Drawings

[0016] [Figure 1] It is a schematic perspective view for explaining the present embodiment. [Figure 2] It is an exploded perspective view for explaining the present embodiment. [Figure 3] It is a schematic cross-sectional view for explaining the main part of the present embodiment. [Figure 4] It is a schematic perspective view for explaining the lid member of the present embodiment and other configuration examples. [Figure 5] It is a schematic cross-sectional view of the main part for explaining the lid member of the present embodiment and other configuration examples. [Figure 6] It is a schematic plan view for explaining the lid member of the present embodiment and other configuration examples. [Figure 7] It is a schematic perspective view for explaining the dike part. [Figure 8] It is a schematic perspective view for explaining the dike part.

Modes for Carrying Out the Invention

[0017] Embodiments of the present invention considered to be suitable will be briefly described based on the drawings while showing the operation of the present invention.

[0018] Groundwater is sprayed onto the road surface through the water spraying port 2 of the lid member 3 of the water spraying nozzle buried in the road surface to melt the snow on the road surface.

[0019] At this time, the groundwater passing through the water spraying port 2 collides with the diffusion part 6 and is diffused in a direction (horizontal direction) intersecting the collision direction. Therefore, compared with the structure in which water is sprayed linearly from the holes, water is sprayed over a wider range (fan-shaped), and the non-water-spraying area is made as narrow as possible.

[0020] Therefore, the present invention enables more uniform watering, allowing groundwater to spread over a wide area of ​​the road surface and equalize the temperature distribution on the road surface as much as possible, thereby enabling efficient snow melting. Furthermore, since the diffusion section 6 is integrally provided with the water outlet section 2, no separate components are required, which reduces costs. [Examples]

[0021] Specific embodiments of the present invention will be described with reference to the drawings.

[0022] This embodiment is a watering nozzle for snow melting, comprising a watering nozzle body 1 and a lid member 3 that is detachably provided on the opening 1a of the watering nozzle body 1.

[0023] Specifically, as shown in Figures 1 and 2, this embodiment is provided with a sprinkler nozzle 2 on the cover member 3 for sprinkling water onto the road surface, and a diffusion unit 6 is integrally provided on the sprinkler nozzle 2 for sprinkling water onto the road surface by causing the discharged water to collide with the sprinkler nozzle and diffusing it in a direction intersecting the collision direction.

[0024] Let's explain each part in detail.

[0025] As shown in Figure 3, the sprinkler nozzle body 1 is buried in the ground with its upper surface (lid member 3) exposed, and its lower end is connected to the rising section 10a of the water supply pipe 10 that delivers groundwater. Inside the sprinkler nozzle body 1, in the middle section, there is a female screw section 12 into which the male screw section 11 of the lid member 3 is screwed. In addition, a receiving section 13 is provided on the inner circumferential wall of the opening 1a of the sprinkler nozzle body 1 to hold the lower periphery of the lid member 3.

[0026] The lid member 3 has a disc-shaped head 3a and a tail 3b that hangs down from the center of the head 3a. The tail 3b has a male screw portion 11 on its outer circumference, and a flow channel 14 is formed through the inside of the tail 3b to guide groundwater from the water supply pipe 10 to the space below the head 3a. A flow rate adjustment section 15 is provided to adjust the amount of water sprayed by adjusting the degree of opening and closing of this flow channel 14. In the figure, reference numeral 16 denotes a protective cap and 17 denotes an O-ring.

[0027] In this embodiment, the head 3a and tail 3b are formed as a single unit, but the head 3a and tail 3b may be configured as separate parts.

[0028] Furthermore, in a plan view of the head portion 3a, a water sprinkler 2 is provided at a position that avoids the tail portion 3b, for sprinkling water from the top surface of the head portion of the lid member 3. Alternatively, two water sprinklers 2 may be provided at 180-degree intervals. Whether to provide one or two water sprinklers 2 should be determined appropriately considering the width of the road, the shape and size of the water sprinklers 2, the risk of clogging, etc.

[0029] The sprinkler outlet section 2 has a lower inlet 4 into which water that has passed through the flow path 14 is introduced, and an upper outlet 5 which is wider than the lower inlet 4. A diffusion section 6 is integrally provided on the lid member 3 (head 3a) on the upper outlet 5 side, into which water introduced from the lower inlet 4 collides.

[0030] Specifically, the lower inlet 4 and the diffusion section 6 are arranged to overlap in a plan view, and the water introduced vertically upward from the lower inlet 4 is diffused horizontally in the diffusion section 6.

[0031] In this embodiment, the lower inlet 4 is a circular opening, and the upper outlet 5 is a circular opening with a larger diameter than the lower inlet 4, and they are arranged so that their respective center positions coincide in a plan view.

[0032] Furthermore, in this embodiment, as shown in Figures 4(a), 5(a), and 6(a), the diffusion section 6 is a straight rod shape in plan view and is installed so as to pass through the center of the upper outlet 5, with its lower surface protruding downwards towards the center.

[0033] The inner circumferential wall of the sprinkler outlet 2 is provided with a mortar-shaped sloped section 7 that widens in diameter from the lower inlet 4 side towards the upper outlet 5 side. Therefore, the water diffused in the diffusion section 6 is diffused and discharged over a wide area along the sloped section 7 and the upper outlet 5.

[0034] By making the diffusion section 6 rod-shaped, water can be sprayed in two directions with the diffusion section 6 as the boundary, making it possible to spray water on both sides even with only one water outlet section 2. The shape of the rod-shaped diffusion section 6 in plan view is not limited to a rectangle; it may also be a shape with a bulge in the center or other shapes. Also, the shape of the bottom surface is not limited to a mountain-shaped projection; it may also be a flat surface or other shapes.

[0035] Furthermore, the diffusion section 6 may be in any shape other than the rod shape described above, as long as it extends horizontally in a direction intersecting the direction in which the water from the lower inlet 4 collides. For example, it may be in a flange shape (plate shape) as shown in Figures 4(b) and (c), 5(b) and (c), and 6(b) and (c).

[0036] Specifically, the sprinkler outlet section 2 shown in Figures 4-6(b) has two circular lower inlets 4 spaced 180 degrees apart, a crescent-shaped upper outlet 5, and a flange-shaped section 6 that protrudes horizontally from the central inner circumferential wall (projecting in an arc shape in plan view), which is located above the lower inlet 4. The inner circumferential wall opposite the diffusion section 6 is a mortar-shaped sloping section 7.

[0037] Furthermore, the sprinkler outlet section 2 in Figures 4-6(c) has two circular lower inlet openings 4 spaced 180 degrees apart, an annular upper outlet 5 surrounding the central part including a protective cap 16, and an annular flange (full-circumference flange) provided on the upper part of the central cylindrical section 18 which serves as the diffusion section 6, located above the lower inlet opening 4. The inner circumferential wall on the outer side facing the cylindrical section 18 is a mortar-shaped sloped section 7.

[0038] Furthermore, the flange-shaped diffusion portion 6 is not limited to having a flat lower surface; it may also have other shapes, such as a conical surface that protrudes downwards (especially towards the center).

[0039] With the above configuration, as shown in Figures 5 and 6, even when the vertical watering angle θ1 is set to 45 degrees or less, which is less affected by wind, it is possible to achieve a configuration in which watering is performed almost uniformly within the range of the horizontal watering angle θ2 by setting the horizontal watering angle θ2 to 150 degrees or more (so that there are as few areas where water does not flow as possible).

[0040] Therefore, by installing this embodiment at appropriate intervals, the road surface temperature distribution can be made as uniform as possible, and by efficiently utilizing the heat of groundwater (suppressing the amount of water sprayed beyond what is necessary for snow melting on the road surface), good snow melting that does not leave behind snow can be achieved with the minimum amount of water sprayed, and thus, excessive water spraying can be suppressed.

[0041] Furthermore, the lid member 3 can also be attached to an existing watering nozzle body, and the same effect can be obtained in this case as well.

[0042] Furthermore, as shown in Figure 7, a convex dam 8 with a chamfered upper corner may be provided on the opening edge of the upper outlet 5 of the sprinkler section 2. In this case, it is possible to prevent solid objects such as sand from entering the sprinkler section 2 and to prevent the sprinkler section 2 from being submerged, making it less prone to clogging and submersion, and making it easier to maintain an appropriate sprinkling distance. The same applies when a convex dam 8 is provided on the outer peripheral edge of the upper surface of the lid member 3, as shown in Figure 8. In addition, although not shown in the illustration, a similar convex dam 8 may be provided on both the opening edge of the upper outlet 5 and the outer peripheral edge of the upper surface of the lid member 3, in which case the above-mentioned effects will be even more pronounced.

[0043] In this embodiment, the watering nozzle body 1 and the lid member 3 are made of metal (stainless steel). However, the lid member 3, which is frequently replaced, may be made of synthetic resin. In this case, it would be possible to easily create and replace it using a 3D printer or the like, making it even more convenient.

[0044] Furthermore, although this embodiment shows an example where the lid member 3 is a separate component, the watering nozzle body 1 and the lid member 3 may be formed entirely as one unit using a 3D printer, and the watering outlet 2 may be provided in the part corresponding to the lid member 3. In this case, the entire assembly may be made of metal or synthetic resin.

[0045] As this embodiment is configured as described above, when melting snow on the road surface by spraying groundwater onto the road surface through the sprinkler opening 2 of the cover member 3 of the sprinkler nozzle embedded in the road surface, the groundwater passing through the sprinkler opening 2 collides with the diffusion section 6 and diffuses in a direction intersecting the direction of collision (horizontal direction). Therefore, compared to a structure in which water is sprayed linearly from the hole, the water is sprayed over a wider area (in a fan shape), and the non-sprayed area is made as small as possible.

[0046] Therefore, more uniform watering becomes possible, allowing groundwater to spread over a wide area of ​​the road surface, making the temperature distribution on the road surface as uniform as possible and enabling efficient snow melting. In addition, since the diffusion section 6 is integrally provided with the water outlet section 2, separate components are not required, thus reducing costs.

[0047] Therefore, this embodiment allows for more uniform watering and efficiently utilizes the heat of groundwater, thus suppressing excessive watering. [Explanation of Symbols]

[0048] 1. Sprinkler nozzle body 1a opening 2. Spray nozzle section 3. Lid member 4. Lower inlet 5. Upper outlet 6 Diffusion section 7. Sloping section 11 Male screw part 12 Female screw part 14 Flow channel

Claims

1. A lid member having a male screw portion that is screwed into a female screw portion inside the watering nozzle body, and being detachably provided at the opening of the watering nozzle body, A channel is suspended in the center, and a sprinkler section is provided through this channel to spray water onto the road surface. This sprinkler section is positioned away from the channel, and a diffusion section is integrally provided at the sprinkler section to cause the discharged water to collide and diffuse the sprayed water in a direction intersecting the direction of collision. The sprinkler section has a lower inlet into which water is introduced, and an upper outlet that is wider than the lower inlet and opens to the upper surface of the lid member, and the lower inlet and the diffusion section are arranged to overlap in a plan view. A lid member characterized in that it is fixed to the watering nozzle body by screwing the female screw portion and the male screw portion of the watering nozzle body together.

2. The lid member according to claim 1, characterized in that the inner circumferential wall of the sprinkler port portion is provided with a mortar-shaped inclined portion that widens in diameter from the lower inlet side to the upper outlet side.

3. The lid member according to Claim 1, characterized in that one lower inlet is provided for each of the diffusion sections.

4. The lid member according to claim 2, characterized in that one lower inlet is provided for each of the diffusion sections.

5. A lid member according to any one of claims 1 to 4, characterized in that the diffusion portion is rod-shaped.

6. A lid member according to any one of claims 1 to 4, characterized in that the diffusion portion is flange-shaped.

7. A watering nozzle characterized by comprising a lid member according to any one of claims 1 to 4, and a watering nozzle body to which the lid member is attached to the opening.

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