JPH0222458Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a snow melting device, for example, one that melts accumulated snow on the roof of a house.

[Conventional technology]

Conventionally, this type of snow melting equipment includes, for example,
As described in Japanese Utility Model Application Publication No. 58-100916, a long water conduit having a plurality of water nozzles is fixed along the top of the roof of a house, and a conduit is attached to one end of the water conduit. A structure is adopted in which a water supply pump is connected via the .

The pump is driven to supply water to the water conduits on the roof and sprinkle water from each of the water nozzles to melt snow on the roof.

[Problem that the invention attempts to solve]

In the above-mentioned conventional structure, since the water nozzles are provided in the long water conduit, the pressure is gradually reduced from one end of the water conduit to the other end, so that uniform pressure is applied from each water nozzle of the water conduit. There is a problem with not being able to spray water.

In addition, the water conduit should be installed at the same length as the top of the roof.
Since long books are used, water conduits must be installed for each roof, which poses a problem in that handling during delivery and installation work is time-consuming.

Furthermore, when water conduits are not needed outside of winter, they are installed to prevent clogging of water nozzles and to prevent debris such as fallen leaves from accumulating on the roof and causing damage to the roof.
When this is removed, since the water conduit is a single long piece, there are problems with its storage and management after its removal.

Therefore, the present invention was developed in view of the above points, and it makes it possible to eject snow melting water from multiple nozzles with uniform pressure, and also makes it easy to transport and install at the installation location, and when unnecessary It is an object of the present invention to provide a snow melting device which is shortened in size and can be easily stored and managed.

[Means for solving problems]

The snow melting device of the present invention includes an inner tube having a first flow path and a second flow path separated by a partition wall extending in the axial direction, a heat-retaining cylinder that covers the inner tube, and A snow melting pipe unit is composed of a plurality of water nozzles that are installed in communication with the first flow path and protrude outward through the heat insulating cylinder, and the end of the inner pipe of this snow melting pipe unit is connected to an expansion joint. The first flow path and the second flow path are connected to each other in communication with each other, and the connecting portion of the heat insulation cylinder is covered.

[Effect]

In the snow melting device of the present invention, a plurality of snow melting pipe units are installed in series on the roof, and when water is supplied to the inner pipe of the snow melting pipe, snow melting water is sprayed from the water nozzle provided in the inner pipe. At this time, the inner pipe provided with the water spray nozzle is divided into a first flow path and a second flow path, and since both flow paths are communicated with each other by the expansion joint body, uniform water is distributed from each water nozzle of each snow melting pipe unit. Snow melting water is sprayed under pressure.

〔Example〕

An embodiment of the present invention will be described based on the drawings.

In FIG. 2, reference numeral 1 denotes an inner tube made of synthetic resin or the like into a cylindrical shape. Inside this inner tube 1, a diametrical partition wall 2 extending in the axial direction is integrally formed. A first flow path 3 and a second flow path 4 are formed above and below. The inner tube 1 is housed in a heat-retaining tube 5 made of synthetic resin or the like and shaped into a rectangular tube. Further, a water spray nozzle 6 attached to the upper part of the inner tube 1 so as to communicate with the first flow path 3 in the upper part passes through the heat retaining cylinder 5 and projects from the upper part of the heat retaining cylinder 5. In this way, the inner tube 1, the heat retaining tube 5, and the water spray nozzle 6 constitute the snow melting tube unit 8 having the heat retaining layer 7 between the inner tube 1 and the heat retaining tube 5.

Reference numeral 9 designates an expansion joint body, which has a cylindrical body 11 molded from transparent synthetic resin with a nut part 10 integrally formed in the middle part, and both ends of this body 11 are An insertion port 1 into which the connecting end 12 of the inner pipe 1 of the snow melting pipe unit 8 is inserted and removed.
3 is formed, and the female thread 17 of the cap nut body 15 molded from synthetic resin for tightening is screwed into the male thread 14 formed on the outer periphery of the insertion port 13 at both ends, and the seal body 16 is inserted into the inner tube. It is designed to be brought into pressure contact with the outer periphery of 1.

Furthermore, 18 is a slidable cover tube that covers the expansion joint body 9 and connects the heat insulation tubes 5, and this cover tube 18 is made of synthetic resin and has approximately the same shape as the heat insulation tubes 5. and is slidably fitted to one end of the heat retaining cylinder 5.

Further, 19 is a water supply pipe, and one end of this water supply pipe 19 is connected to a snow melting pipe unit 8 disposed on the outer side.
The water supply conduit 19 is connected to the outer end of the inner pipe 1 through an elbow 20, and the other end of the water supply conduit 19 is connected to a pump 23 through a conduit 22 having a drain plug 21.

Next, an example of installing the snow melting device of the above embodiment on the roof of a house will be described.

First, a number of snow melting pipe units 8 that can form a length corresponding to the length of the top of roof b of house a are arranged in the length direction, and the opposing snow melting pipe units 8
The connecting ends 12 of the inner tubes 1 are inserted into the insertion opening 13 of the expansion joint body 9. At this time, since the main body 11 is transparent, the insertion end of the inner tube 1 can be easily confirmed. Then, the cap nut bodies 15 at both ends of the expansion joint body 9 are rotated in the tightening direction to integrally and liquid-tightly tighten them.

Further, the cover tube 18 fitted to the snow melting tube unit 8 is slid to cover the connecting portion of the heat retaining tube 5, and the connecting portion of the cover tube 18 is hermetically covered with adhesive tape.

In this way, the snow melting pipe units 8 are connected to form a series of snow melting devices 24 on the roof b.

Then, the snow melting device 24 is removably fixed to the top of the roof b with the water nozzle 6 facing upward, and the snow melting device 24
Both ends of the snow melting device 24 are hermetically closed with caps 25, and the distal end of the inner tube 1 of the snow melting device 24 is fluid-tightly closed with a cap 26.

Next, the water supply pipe 19 is arranged and fixed along the side wall c of the house a, and the upper end of this water supply pipe 19 is connected to one end of the inner pipe 1 via the elbow 20, and the water supply pipe 19 is Pump the bottom end 2
It is connected in communication with a conduit 22 connected to 3.

Then, when the pump 23 is driven during snowfall, the snow melting water in the conduit 22 is pumped from the water supply conduit 19 into the inner pipe 1 of the snow melting device 24, and is ejected from each water spray nozzle 6 of this inner pipe 1. This melts the snow on the roof b. In this case, the snow melting pipe unit 8 has an upper first flow passage 3 and a lower second flow passage 4 located above and below through the partition wall 2, and this first flow passage 3 and the second flow passage 4
are joined by the expansion joint body 9, so the snow melting water from the water supply pipe 19 is pressure-adjusted and becomes uniform in each snow melting pipe unit 8, so that the snow melting water from each water nozzle 6 is uniform. The snow is ejected with such pressure that it evenly melts the snow on the roof.

Further, the inner tube 1 is covered with a series of heat retaining cylinders 5, and a series of heat retaining layers 7 are formed between the heat retaining cylinders 5, so that freezing of snow melting water in the inner tube 1 is prevented.

Next, by closing the drain plug 21 when not in use and draining the water in the inner pipe 1 and the water supply pipe 19, it is possible to prevent the inner pipe 1 and the water supply pipe 19 from freezing in the winter.

Further, when not in use outside of winter, the adhesive tape covering each covering tube 18 is removed, and each covering tube 18 is slid to fit into one of the heat retaining tubes 5. Further, by rotating the cap nut body 15 of each expansion joint body 9 in the loosening direction, the connecting ends 11 of the opposing snow melting pipe units 8 inserted into the insertion openings 13 are disconnected. As a result, each snow melting pipe unit 8 is separated and shortened.

[Effect of idea]

According to the present invention, a plurality of snow melting pipe units each having an inner pipe, a heat insulating tube, and a water spray nozzle are connected by an expansion joint body to form a series of snow melting devices having a predetermined length. The pressure of snow water is automatically adjusted in the inner pipe of each snow melting pipe unit, and it can be ejected from multiple nozzles with uniform pressure. Therefore, the water ejected from the multiple nozzles can spread the snow evenly in the downstream direction. You can reliably melt snow without having to worry about it. In addition, the inner pipe and insulation cylinder are made into a unit, and the multiple snow melting pipe units can be attached and detached, making it easy to transport and install them to the installation location, and to remove them when they are not needed. It can be easily shortened into individual units, and subsequent handling, storage, and management are easy.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a partially cutaway front view of the snow melting device, Fig. 2 is a sectional view of the snow melting pipe unit, and Fig. 3 is a connection section of the snow melting pipe unit. FIG. 4 is an explanatory diagram showing the installed state. 1... Inner pipe, 2... Partition wall, 3... First flow path, 4
...second flow path, 5...thermal cylinder, 6...water nozzle,
8... Snow melting pipe unit, 9... Expansion joint body.

Claims (1)

[Scope of utility model registration request] An inner tube having a first flow path and a second flow path separated by a partition wall extending in the axial direction, a heat-retaining cylinder covering the inner tube, and communicating with the first flow path of the inner tube. A snow melting pipe unit includes a water spray nozzle that is attached to the snow melting pipe and protrudes outward through a heat insulating cylinder, and the ends of the inner pipes of the plurality of snow melting pipe units are defined as a first flow path and a second flow path. 1. A snow melting device comprising: an expansion joint body that communicates with each other and connects them detachably; and a cover tube that covers a connecting portion of the heat insulation tube.