JP2022087417A - Socket for prevention of freezing - Google Patents

Abstract

To provide a socket for prevention of freezing which can be connected to a faucet installed at an outdoor space, etc. very easily and installed with a water discharge port of a freezing prevention valve oriented in a vertically downward direction without fail.SOLUTION: A socket for prevention of freezing 4 includes: a cylindrical body 41 which is disposed between a first valve at the water supply source side and a second valve connected to the first valve and has opening surfaces 41a, 41b, located on upper and lower surfaces, and in which a first water supply passage 41c for allowing water to flow between the first valve and the second valve is formed; a cylindrical adapter 42 which has an opening surface at one end side and is connected to a side surface of the cylindrical body 41 in a direction orthogonal to the side surface and in which a second water supply passage 42a for allowing water to flow to the first water supply passage 41c is formed; and a low temperature actuated valve 43 which is inserted and fitted in the other end side of the cylindrical adapter 42 and operates to discharge water from the second water supply passage 42a to the outside by a valve body 43a automatically opening according to an outside air temperature. Thus, the socket for prevention of freezing 4 can be connected to a faucet installed at an outdoor space very easily and enables installation of a discharge port of a freezing prevention valve in a vertically downward direction without fail.SELECTED DRAWING: Figure 3

Description

The present invention relates to an antifreeze socket that prevents the water supply pipe and the like from being destroyed due to freezing and expansion of water in the water supply pipe in winter, and in particular, antifreeze that can be connected to a faucet installed outdoors. Regarding sockets.

Conventionally, a faucet installed outdoors has been used as a water supply source for an automatic watering system, a washing machine, a water heater, and the like. Here, if the installation location of the faucet or the like is in a harsh environment where the temperature is below freezing in winter, the water in the water supply pipe freezes and expands, and as a result, the water supply pipe and other members may be damaged or the accuracy may deteriorate. There is a risk of connection.

Therefore, for example, in order to prevent water from freezing and expanding in winter and destroying water supply pipes and the like, an automatic watering system that makes it possible to remove water supply parts that may be damaged in winter is disclosed. (See, for example, Non-Patent Document 1).

Further, a low temperature operating valve may be used to prevent damage to the water supply pipe or the like due to expansion of water in winter (see, for example, Patent Document 1). This low temperature actuated valve is installed in water pipes such as water pipes that may freeze or in appliances such as water heaters, and when the temperature drops to the freezing temperature, the temperature is detected by a thermostat using wax in the temperature sensitive part. And open the valve. Then, the water in the water supply pipe is flowed during the period when the valve is open to prevent the water in the water supply pipe and the appliance from freezing. Further, there is also disclosed a freeze prevention mechanism for a water supply pipe having a compact structure, which can reduce the cost and easily adjust the valve opening temperature (see, for example, Patent Document 2).

Japanese Patent Application Laid-Open No. 2015-140915 Japanese Unexamined Patent Publication No. 2020-133762

"Sumapro (registered trademark) BT: Smart Pro Watering Series (Groben Co., Ltd.)" [Searched on November 30, 2nd year of Reiwa], Internet <URL: http://www.globen.co.jp/topic/topic30. html>

However, when attaching the antifreeze valve to an outdoor standing faucet or the like, for example, as shown in FIG. 9, one of the water supply pipes 22 on the primary side (main faucet side) of the faucet 21 of the standing faucet 20. Generally, the antifreeze valve 23 is attached so as to hang down from the portion. In this case, in order to install the anti-freezing valve 23, it is necessary to close the main plug, remove the main body of the faucet 21, and further install the anti-freezing valve 23 on the water supply pipe 22 so as to face downward. There is a problem that it takes time and effort to install the water supply.

In addition, even if it is stated in the manual that water supply parts located outdoors should be removed in winter to prevent damage, it is rarely removed in winter due to the troublesome removal work, which is also the case for water supply. It is a major cause of damage to parts such as piping.

In addition, there are many cases where the installed anti-freezing valve is installed sideways. In this way, the anti-freezing valve installed right next to it cannot discharge water properly and effectively at low temperatures, and even if the anti-freezing valve is attached, there are cases where members such as water supply pipes are damaged. There is.

The present invention has been made in view of the above problems, and it is extremely easy to connect to a faucet installed outdoors and the like, and the spout of the antifreeze valve can be reliably installed facing downward. The purpose is to provide a protective socket.

In order to achieve the above object, the present invention is an antifreeze socket arranged between a first valve on the water supply source side and a second valve connected to the first valve, and has openings on the upper and lower surfaces. A cylindrical main body having a first water supply channel for passing water between the first valve and the second valve, and an opening surface on one end side of the tubular main body. A cylindrical adapter that is connected in a direction orthogonal to the side surface and has a second water supply channel that allows water to pass through the first water supply channel is formed inside, and is inserted into the other end side of the tubular adapter to allow the outside temperature to rise. It is characterized by comprising a low temperature actuating valve that operates so as to discharge water to the outside from the second water supply channel by automatically opening the valve body accordingly.

In this anti-freezing socket, it is preferable that the low temperature actuated valve has a cylindrical shape and is juxtaposed with the tubular main body.

In this anti-freezing socket, it is preferable that screw grooves are formed on the outer peripheral surface of the tubular body on the first valve side and the outer peripheral surface on the second valve side.

In this anti-freezing socket, a hole leading to the first water supply channel is formed on the side surface of the tubular body, and one end side of the tubular adapter is inserted into the hole to be inserted into the hole. It is preferable that the first water supply channel and the second water supply channel pass water.

In this antifreeze socket, the antifreeze socket is further integrated with a nut member that is detachably screwed into a screw groove on the upper side of the tubular body and is integrated with the nut member on the first valve side. It is preferable to include a connection adapter comprising an adapter member that is detachably screwed to a screw tap formed on the outer peripheral surface of the spout of the arranged faucet.

In this antifreeze socket, the adapter member has a first cylindrical portion having a screw groove on the inner peripheral surface which is arranged on the faucet side and can be screwed into a screw tap of the faucet, and a second cylinder having a smaller diameter than the first cylindrical portion. It is preferably formed of two cylindrical portions, and a convex surface that engages with the nut member is formed on the outer periphery of the second cylindrical portion along the circumferential direction.

In this anti-freezing socket, it is preferable that the first valve is an on-off valve provided in a faucet as a water supply source, and the second valve is an electromagnetic on-off valve provided in a controller that automatically sprinkles water.

The anti-freezing socket according to the present invention is arranged between the first valve and the second valve on the water supply source side. This antifreeze socket has a cylindrical body having an opening surface on the upper and lower surfaces and a first water supply channel for passing water between the first valve and the second valve formed inside, and an opening on one end side. On the other end side of the tubular adapter and the tubular adapter, which has a surface and is connected in a direction orthogonal to the side surface of the tubular body and has a second water supply channel formed inside to pass water to the first water supply channel. It is provided with a low-temperature actuated valve that is inserted and automatically opens the valve body according to the outside temperature so as to discharge water from the second water supply channel to the outside. With this configuration, the anti-freezing socket of the present invention can be extremely easily connected to a faucet installed outdoors, and the spout of the anti-freezing valve can be reliably installed facing downward.

It is an overall view of the automatic sprinkling system using the antifreeze socket which concerns on embodiment of this invention. Same as above It is a perspective view of a standing faucet using an antifreeze socket. (A) A perspective view of the same as above for the anti-freezing socket, (b) a perspective view of the same as above for the anti-freezing socket, (c) a top view of the same as above for the anti-freezing socket, and (d) a bottom view of the same as above for the anti-freezing socket. Same as above is a partially transparent side view of the anti-freezing socket. It is a perspective view of the faucet part using the antifreeze socket which concerns on the modification 1 of the said embodiment. (A) A perspective view from the bottom surface side of the connection adapter used for the anti-freezing socket, (b) a perspective view from the top surface side of the same as above connection adapter, and (c) a partially transparent side view of the same as above connection adapter. It is a perspective view of the faucet part using the antifreeze socket which concerns on the modification 2 of the said embodiment. (A) A perspective view from the bottom surface side of the connection adapter used for the anti-freezing socket, (b) a perspective view from the top surface side of the same as above connection adapter, and (c) a partially transparent side view of the same as above connection adapter. It is explanatory drawing of the conventional antifreezing valve attached to a standing faucet.

(Embodiment)
The anti-freezing socket according to the embodiment of the present invention will be described with reference to FIGS. 1 to 4. First, an example of using the antifreeze socket according to the present embodiment will be described with reference to FIG. The automatic watering system S shown in FIG. 1 is a system that can automatically water plants outdoors and can set the time, number of times, scale, watering pattern, etc. of watering by combining various devices according to the application. be.

As shown in FIG. 1, this automatic watering system S uses a faucet 2 or the like of a standing faucet 1 installed outdoors as a water supply source. A faucet adapter 3 to be screwed at three points is attached to the mouth side of the faucet 2 of the standing faucet 1. Then, the anti-freezing socket 4 is connected to the faucet adapter 3, and the automatic sprinkling member 5 is connected to the anti-freezing socket 4, so that the automatic sprinkling member 5 becomes a standing faucet 1. It is fixed. A screw cap or the like is formed on the water discharge side of the automatic sprinkling member 5, and the hose connector 6 is inserted into the screw cap to complete the installation.

The automatic sprinkling member 5 includes, for example, a sprinkling controller (controller) 5a, and opens a valve body at a preset time zone using a built-in electromagnetic on-off valve. As a result, the water supply path from the faucet 2 is opened, and the water reaches the jet spray 8 via the hose 6 and the tube 7, and water is periodically sprinkled on flowers such as flower beds and plants such as planting plants. By using this sprinkler controller 5a, the solenoid valve is opened only while the power is on to allow water to pass through, and when the power supply is stopped, the solenoid valve is also closed to stop the water. The watering controller 5a has a Bluetooth (registered trademark) communication function with low power consumption, and can be used for wireless communication using a dedicated application installed on a mobile terminal such as a smartphone to set the date and time of watering, the number of times, various modes, and the like. Very easy to set up.

Next, the configuration of the anti-freezing socket 4 will be described with reference to FIGS. 2 to 4. As shown in FIG. 2, the antifreezing socket 4 is connected to a first valve serving as a water supply source (an on-off valve provided in the faucet 2 in the present embodiment) and a first valve via a water supply pipe. It is arranged between two valves (in this embodiment, an electromagnetic on-off valve provided in a controller that automatically sprinkles water). As shown in FIG. 3, the antifreeze socket 4 includes a cylindrical main body 41, a tubular adapter 42, and a low temperature actuated valve 43. For example, these cylindrical main body 41, tubular adapter 42, and low temperature actuated valve 43 are made of metal or reinforced plastic resin.

The tubular main body 41 has opening surfaces 41a and 41b on the upper and lower surfaces, and a first water supply channel 41c for passing water between the first valve and the second valve is formed inside. Further, a hole 41d is formed on the side surface of the tubular body 41, and the tubular adapter 42 is inserted into the hole 41d in a direction orthogonal to the hole 41d and screwed with a screw 41e. By inserting one end side of the tubular adapter 42 into the hole 41d, water passes through the first water supply channel 41c and the second water supply channel 42a.

Threaded grooves 41f and 41g are formed on the outer peripheral surface of the tubular main body 41 on the first valve side and the outer peripheral surface on the second valve side. In the present embodiment, a female screw groove 41f is formed on the upper side and a female screw groove 41g is formed on the lower side, and the upper screw groove 41f is screwed into a male screw (not shown) formed on the inner peripheral surface of the faucet adapter 3. It fits. The lower screw groove 41g is screwed into a male screw (not shown) formed on the inner peripheral surface of the connecting member 5b of the automatic watering member 5.

The tubular adapter 42 has an opening surface on one end side, is connected in a direction orthogonal to the side surface of the tubular main body 41, and has a second water supply channel 42a internally formed to pass water through the first water supply channel 41c. Orthogonal. The second water supply channel 42a has a water supply channel closed on the other end side of the tubular adapter 42, and the first water supply channel 41c and the second water supply channel 42a form a T-shaped water supply channel.

The low temperature actuated valve 43 is a so-called widely used antifreeze valve. The low temperature actuated valve 43 is provided with, for example, a tubular housing, and a thermoelement containing wax as a thermal expander is disposed therein, and is elastically supported by a coil spring. This thermo element acts as a temperature sensitive part, and when the temperature drops below a predetermined temperature (for example, 0 ° C to 5 ° C), the thermo element shrinks due to heat, and the valve body 43a arranged at the lower end of the low temperature actuated valve 43 opens, resulting in a small amount. Water is discharged to the outside from the spout of the valve body 43a. As a result, it is possible to prevent the water in the water supply pipe from flowing and freezing, and to prevent freezing while suppressing the amount of water discharged because the valve automatically closes when the outside air temperature rises above 5 ° C. Can be done.

Specifically, the low temperature operating valve 43 is inserted into a hole 42b formed in the lower portion on the other end side of the tubular adapter 42, and the valve body 43a automatically opens the valve body 43a according to the outside air temperature to supply water second. The water from the road 42a is discharged to the outside. Further, the low temperature actuating valve 43 is arranged in parallel with the tubular main body 41 as shown in FIG. With this arrangement, when the anti-freezing socket 4 is connected to the faucet 2, the cold temperature operating valve 43 is arranged in the vertical direction and the spout is arranged directly below, so that water can be efficiently discharged to the outside at low temperature.

As described above, the antifreeze socket 4 according to the present embodiment is arranged between the first valve on the water supply source side and the second valve connected to the first valve, and has opening surfaces 41a on the upper and lower surfaces. A cylindrical main body 41 having a 41b and having a first water supply channel 41c for passing water between the first valve and the second valve formed inside, and a tubular main body 41 having an opening surface on one end side. A second water supply channel 42a connected in a direction orthogonal to the side surface of the first water supply channel 41c and passing water through the first water supply channel 41c is formed inside the cylindrical adapter 42 and is inserted into the other end side of the tubular adapter 42. A low-temperature operating valve 43 that operates so as to discharge water from the second water supply channel 42a to the outside by automatically opening the valve body 43a according to the outside temperature is provided.

With this configuration, the anti-freezing socket 4 can be connected to a faucet installed outdoors, etc. extremely easily, and as a result, the water supply pipe and other members are surely damaged or destroyed due to the freezing and expansion of water in the water supply pipe. Can be prevented. Further, since the low temperature actuated valve 43 is inserted into the hole portion 42b formed in the lower portion on the other end side of the tubular adapter 42, the water discharge port of the low temperature actuated valve 43 is always directed downward, and the temperature is higher at low temperature. Water can be reliably and efficiently discharged to prevent damage to members such as water supply pipes.

(First modification)
A first modification of the present embodiment will be described with reference to FIGS. 5 and 6. The anti-freezing socket 4 according to the first modification includes a connection adapter 9 arranged between the anti-freezing socket 4 and the faucet 2 as shown in FIG. A screw tap (spiral thread groove) is formed on the outer peripheral surface of the spout of the faucet 2.

Specifically, the connection adapter 9 is integrated with the nut member 91, which is detachably screwed into the screw groove 41f on the upper side of the tubular main body 41 of the antifreeze socket 4, and the first valve side. It is composed of an adapter member 92 that is detachably screwed to a screw tap formed on the outer peripheral surface of the mouth of the faucet 2 arranged in. For example, the inner peripheral diameter of the nut member 91 is 25 mm, and the inner peripheral diameter of the adapter member 92 is 20 mm.

As shown in FIG. 6 (c), the adapter member 92 has a first cylindrical portion 92a having a screw groove on the inner peripheral surface which is arranged on the faucet 2 side and can be screwed into the screw tap of the faucet 2, and the first cylinder. It is composed of a second cylindrical portion 92b having a diameter smaller than that of the portion 92a. Further, a convex surface 92c that engages with the nut member 91 is formed on the outer periphery of the second cylindrical portion 92b along the circumferential direction.

With this configuration, the anti-freezing socket 4 according to the first modification has the same effect as that of the above embodiment, and is very compatible with the screw tap type faucet 2 that is widely used in Japan and the like. The anti-freezing socket 4 can be easily attached or detached.

(Second modification)
A second modification of the present embodiment will be described with reference to FIGS. 7 and 8. The anti-freezing socket 4 according to the second modification includes a connection adapter 10 arranged between the anti-freezing socket 4 and the faucet 2 as shown in FIG. 7. A screw tap (spiral thread groove) is formed on the outer peripheral surface of the spout of the faucet 2, but the diameter of the faucet 2 is larger than that of the above-mentioned modification 1. Specifically, the outer peripheral diameter of the mouth of the faucet 2 according to the modified example 1 is 20 mm, but the outer peripheral diameter of the mouth of the faucet 2 according to the modified example 2 is 32 mm.

The connection adapter 10 of the present modification 2 is integrated with the nut member 101, which is detachably screwed into the screw groove 41f on the upper side of the tubular main body 41 of the antifreeze socket 4, and is integrated with the nut member 101 on the first valve side. It is composed of an adapter member 102 that is detachably screwed to a screw tap formed on the outer peripheral surface of the mouth of the faucet 2 arranged in. For example, the inner peripheral diameter of the nut member 91 is 25 mm, and the inner peripheral diameter of the adapter member 102 is 32 mm.

As shown in FIG. 8C, the adapter member 102 has a first cylindrical portion 102a having a screw groove on the inner peripheral surface which is arranged on the faucet 2 side and can be screwed into a screw tap of the faucet, and the first cylindrical portion. It is composed of a second cylindrical portion 102b having a diameter smaller than that of 102a. Further, a convex surface 102c that engages with the nut member 101 is formed on the outer periphery of the second cylindrical portion 102b along the circumferential direction.

With this configuration, the anti-freezing socket 4 according to the second modification has the same function and effect as that of the above embodiment, and is particularly compatible with the screw tap type faucet 2 which is widely used overseas such as Europe. , The anti-freezing socket 4 can be attached or detached very easily.

The present invention is not limited to the configuration of the above embodiment, and various modifications can be made without changing the gist of the invention. For example, anti-freezing sockets are not limited to the use of automatic watering systems, but with water sources such as washing machines and water heaters where water freezes in winter and can cause damage to water supply pipes and other parts. It goes without saying that it can be used for a faucet.

1 Automatic watering system 2 Faucet 4 Anti-freezing socket 5 Automatic watering member 5a Watering controller (controller)
9,10 Connection adapter 41 Cylindrical body 41a, 41b Opening surface 41c First water supply channel 41d Hole 41f, 41g Thread groove 42 Cylindrical adapter 42a Second water supply channel 43 Low temperature operation valve (freezing prevention valve)
43a Valve body 91,101 Nut member 92,102 Adapter member 92a, 102a First cylindrical part 92b, 102b Second cylindrical part 92c, 102c Convex surface

Claims (7)

An antifreeze socket placed between the first valve on the water supply source side and the second valve connected to the first valve.
A cylindrical main body having an opening surface on the upper and lower surfaces and an internal first water supply channel for passing water between the first valve and the second valve.
A cylindrical adapter having an opening surface on one end side, connected in a direction orthogonal to the side surface of the tubular main body, and having a second water supply channel through which water passes through the first water supply channel is formed inside.
It is provided with a low temperature actuated valve that is inserted into the other end side of the tubular adapter and operates so as to discharge water from the second water supply channel to the outside by automatically opening the valve body according to the outside air temperature. Anti-freezing socket featuring that. The antifreezing socket according to claim 1, wherein the low temperature actuated valve has a cylindrical shape and is juxtaposed with the tubular main body. The antifreezing socket according to claim 1 or 2, wherein screw grooves are formed on the outer peripheral surface of the tubular body on the first valve side and the outer peripheral surface on the second valve side. A hole leading to the first water supply channel is formed on the side surface of the tubular body, and one end side of the tubular adapter is inserted into the hole to form the first water supply channel and the first water supply channel. (Ii) The antifreeze socket according to any one of claims 1 to 3, wherein the water supply channel allows water to pass through. The antifreeze socket further includes a nut member that is detachably screwed into a screw groove on the upper side of the tubular body, and a faucet spout that is integrated with the nut member and is arranged on the first valve side. The antifreeze socket according to any one of claims 1 to 4, further comprising a connection adapter comprising an adapter member detachably screwed to a screw tap formed on the outer peripheral surface of the above. The adapter member is composed of a first cylindrical portion having a screw groove on the inner peripheral surface which is arranged on the faucet side and can be screwed into a screw tap of the faucet, and a second cylindrical portion having a diameter smaller than that of the first cylindrical portion. The antifreeze socket according to claim 5, wherein a convex surface that engages with the nut member is formed on the outer periphery of the second cylindrical portion along the circumferential direction. The first valve is an on-off valve provided in the faucet which is a water supply source.
The antifreezing socket according to any one of claims 1 to 6, wherein the second valve is an electromagnetic on-off valve provided in a controller that automatically sprinkles water.

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