JP2001194010A - Connector for circulation of hot-water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the troubling of forced circulation function even when a filter is cleaned in every period, longer than a conventional period, the slip down of a screw, connecting the connector main body to the receiver of connection, when the same is released and the projection of the screw naturally from the side of the connector main body to the side of the receiver of connection. SOLUTION: In the connector for the circulation of hot-water, which is provided on the side part of a bathtub so as to be faced toward the inside of the bathtub, a sending hot-water passage 21 and a returning hot-water passage 29 are defined respectively in the connector main body 4, an opening of one side, communicated with the sending hot-water passage 21 and the returning hot-water passage 29, or a discharging port is formed on the connector main body at the peripheral part of the same respectively while an opening and closing plate is provided on respective openings and openable partitioning plates 26, 33 are provided on the other openings of the hot-water passages 21, 29 or the suction port for them, further, an inserting unit 45 for inserting and fixing the screw formed on the connector main body 4 is provided with retaining projections 46a (46b) for preventing the missing of the screw.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided on a side of a bathtub and is used for forcibly circulating hot and cold water between a forced circulation type water heater and a bathtub through a connection pipe for an outbound path and a connection pipe for a return path. The present invention relates to a hot water circulation device.

[0002]

2. Description of the Related Art Conventionally, in order to forcibly circulate hot and cold water between a bathtub and a forced circulation hot water supply device, a forced circulation hot water supply device is provided at a side portion of the bathtub through a connection pipe for an outbound path and a connection pipe for a return path. There are various types of hot water circulation connectors that are connected to the water heater.

[0003] Recently, in order to eliminate connection errors between the outgoing connection pipe and the return connection pipe to the two connecting portions of the hot water circulation connector, and to increase the work efficiency at the time of construction of each connection pipe, the hot water circulation is performed. The forced circulation of hot and cold water is not impaired even if the forward connection pipe and the return connection pipe are connected to either of the two connection parts (for the forward path and the return path) provided at the rear part of the connecting device. Many hot water circulation fittings (commonly known as non-polar type hot water circulation fittings) have been developed and used.

[0004] In these connecting devices for hot water circulation, a connecting hot water passage is formed in one half by dividing the inside of the connecting device main body, and a returning hot water passage is formed in the other half. A connection member having a filter cap provided with a filter at the front opening on the front surface, and a connection portion for connecting each connection pipe for the forward path and the return path to be connected to the forced circulation type water heater at the rear part of the connector body. Was provided.

When hot water in the bath tub is forcibly circulated while being heated by a forced circulation type hot water supply device, the hot water in the bath tub is supplied from the one half of the front opening of the filter cap through the filter to the return path in the connecting device main body. The water is sucked into the hot water passage and returned to the forced circulation water heater through the connection member and the return connection pipe.

The hot water returned to the forced circulation water heater as described above is heated by the forced circulation water heater and sent to the bathtub via the outward connection pipe and the connecting member. The water flows into the hot water passage for the outward path of the connector body, and is discharged into the bathtub from an opening formed diagonally below the outer periphery of the connector body. Thus, the hot and cold water in the bathtub is forcibly circulated while being heated by the forced circulation hot water supply device.

[0007]

When the hot water circulation connector as described above is used, when the hot and cold water in the bathtub is forcibly sucked into the connection device main body, the front surface of the filter cap is closed. One half of the opening will be sucked through the filter. Therefore, dust and the like in the bathtub contained in the hot and cold water will concentrate on one side of the filter and adhere to it, and if the filter is not cleaned every short period of time,
The blocking of one half of the filter by dust or the like increases the negative pressure in the return passage in the connector body. As a result, the hot and cold water in the outward hot water passage in the connector main body is sucked toward the return path side from the gap between the connector main body and the filter cap or the like, which hinders the forced circulation of hot water by the hot water circulation connector. There was such a problem.

[0008] A forced circulation bathtub connecting device corresponding to a non-polar type hot / water circulating connection device which has been filed in the prior art is disclosed in Japanese Utility Model Publication No. 3-34707, Japanese Unexamined Patent Publication No.
And Japanese Patent Application Laid-Open No. H10-82563.

However, in the forced circulation bathtub connection devices disclosed in these documents, two valves (introduction valves) provided at locations (front portions) at which hot water flows from the bathtub into the forced circulation bathtub connection device, (Discharge valve) provided at the place (outer periphery) where the water is discharged from the bathtub connection device for forced circulation into the bathtub
Is formed of a rubber material, and has a problem in that it is deteriorated during use to cause cracks and the like.

[0010] The two valves (introduction valves) provided on the front side of the bathtub connection device for forced circulation facing the bathtub are provided at extremely close positions. for that reason,
Hot water flowing into the forced circulation bathtub connection device from the forced circulation water heater side is discharged into the bathtub from one valve (discharge valve) opened by the water pressure of the hot water, and the front surface facing the bathtub is discharged. One valve (introduction valve) is in a closed state, so that the valve (introduction valve) side does not discharge into the bathtub.

[0011] However, the hot water heated by the forced circulation hot-water supply device is originally discharged from the one valve (discharge valve) into the bathtub.
Is formed of a rubber material, so if it is deteriorated and cracks occur, it will be discharged from this valve (introduction valve) into the bathtub, and the other provided beside this valve (introduction valve) Is immediately returned from the open valve (introduction valve) into the bathtub connection device for forced circulation, so-called a short cycle occurs.

Therefore, the hot water heated by the forced circulation hot water supply device is circulated between the forced circulation bathtub connection device and the forced circulation hot water supply device.

Usually, a thermistor for detecting the temperature of the circulating hot and cold water is provided on the forced circulation hot water supply side, and the hot water temperature is detected by the thermistor.
As described above, the temperature of the hot water circulated by the short cycle is higher than the temperature of the hot water in the bathtub. If the hot water temperature is detected by the thermistor, the hot water temperature is connected to the thermistor. The device determines that the set hot water temperature has been reached, and automatically stops the hot water circulation pump. Therefore, there is a problem that it is determined that the temperature of the hot water in the bathtub has not reached the set temperature, but the optimum temperature (set temperature), that is, the bath is determined to be boiling even though it is not.

Further, hot and cold water in the bathroom is supplied to one valve (discharge valve).
If the rubber-made valve (discharge valve) is deteriorated and cracked, etc., when it is sucked into the forced-circulation bathtub connection device from the, the dust in the bathtub from the cracked portion (passes through the filter). Garbage larger than the incoming garbage) through the forced circulation bathtub connection device, a circulation pump in the forced circulation water heater, a water flow switch or circulation pump that detects that hot water is circulating, and others. This causes a problem that these components (such as a circulating pump) do not function properly.

In the conventional connection device for hot and cold water circulation, as shown in FIGS. 31 and 32, the connection device main body 101 is connected to the connection receiving device 1 via a main body cap portion 102 and a screw 103.
04 to the main body cap part 102
03 and the connector body 1
01 was formed with a hole 106 to be engaged with the insertion portion 105. When connecting the connection tool main body 101 and the connection receiving tool 104, a screw hole 107 formed in the connection receiving tool 104 is used.
And the insertion portion 105 of the main body cap portion 102 engaged with a predetermined position of the
Is screwed from the insertion portion 105 into the screw hole 107 of the connection receiving member 104 for connection.

However, the screw 103 is removed at the time of attaching the connecting device for hot and cold water circulation to the side surface of the bathtub or cleaning the inside of the bathtub, so that the connecting device main body 101 and the main body cap portion 102 and the connection receiving device 10 are removed.
4 and the conventional insertion portion 105 has a cylindrical structure, so the removed screw 103 spills out of the insertion portion 105 during the work, and the screw 103 is removed from the main body cap portion 102 disposed inside the bathtub. There was a problem that it fell into the drain of the bathtub.

Further, a plurality of the insertion portions 105 are formed at equal intervals in the circumferential direction of the main body cap portion 102, and the screw holes 107 corresponding to the insertion portions 105 are formed.
Are formed on the connection holder 104. When connecting the connector main body 101 and the connection receiver 104 via the cap main body 102 and the screw 103 as described above, each screw hole 107 of the connection receiver 104 is inserted through the hole 106 of the connector main body 101. When trying to match the protruding insertion portions 105 of the cap body 102 and the respective insertion portions 105 are cylindrical, the tips of the screws 103 inserted into the insertion portions 105 protrude toward the connection receiver 10. I will. For this reason, the projecting screws 103 hinder each insertion portion 105.
In addition, there is a problem that it takes time to position the connection receiving member 10 with the screw holes 107.

The present invention has been developed in view of the above points, and an object of the present invention is to provide a forced circulation function even if cleaning of a filter of a filter cap is performed at intervals longer than before. If the screws that connect the connector body and the connection receiver are removed, improve the durability of the movable part and make it less likely to cause a short cycle, and remove the screw from the connector body. An object of the present invention is to provide a hot water circulation connector that prevents a screw from spilling out and prevents a screw from naturally protruding from a connector main body side to a connection receiver side.

[0019]

The present invention has the following configuration in order to effectively achieve the above object. That is, the connector for hot water circulation of the present invention according to claim 1 is provided with a filter at the front opening, a filter at the front opening, and an outer peripheral portion at the front portion of the connector body in which the hot water passages for the forward path and the return path are formed inside. A filter cap having an opening formed thereon is covered, and a connecting member having a connecting portion for connecting each connecting pipe for a forward path and a return path to be connected to a circulation path is provided at a rear portion of the connector body, and the filter cap is placed in a bathtub. In the connecting device for hot water circulation provided on the side of the bathtub, a connecting hot water passage and a returning hot water passage are separately formed in the connecting device body, and one of the connecting hot water passages and the returning hot water passage is communicated with the connecting hot water passage. Discharge ports, which are openings, are respectively formed on the outer peripheral portion of the connector body, and an opening / closing plate is provided at each of the openings, and a suction port, which is the other opening of the hot water passage for the forward path and the hot water passage for the return path. To, are the structure in which a respective openable partition plates.

According to a second aspect of the present invention, there is provided a connecting device for hot water circulation according to the first aspect of the present invention, wherein each of the openings communicating with the outward hot water passage and the returning hot water passage of the connecting device main body. The cross-sectional area of each of the hot and cold water passages in the foreground is formed so as to gradually decrease as approaching each opening.

According to a third aspect of the present invention, there is provided a hot water circulation connector according to the first or second aspect.
The opening / closing plate and / or the partition plate have locking portions on both sides of the upper end portion which can be swingably locked at a predetermined position of the connector main body, and the upper end portion is formed to be depressed inward. It has a characteristic configuration.

According to a fourth aspect of the present invention, in the hot water circulation connector according to the first, second, or third aspect, the material of the opening / closing plate and / or the partition plate is less than 1 in specific gravity. .

According to a fifth aspect of the present invention, there is provided a hot water circulation connector according to the first, second, third or fourth aspect, wherein the opening / closing plate and / or the partition plate have at least a lower end on one side. In the vicinity, a convex portion is provided along the lower end.

According to a sixth aspect of the present invention, there is provided the connector for hot water circulation according to any one of the first to fifth aspects, wherein the opening / closing plate has a large number of fine holes and / or slits. The filter is provided so as to have a filter function.

According to a seventh aspect of the present invention, there is provided the connector for hot water circulation according to any one of the first to seventh aspects, wherein the hot water discharge direction is provided near the opening of the connector body. And a rectifying section for regulating the pressure is provided.

According to the eighth aspect of the present invention, there is provided a hot water circulation connector according to any one of the first to seventh aspects, wherein each of the openings formed in the outer peripheral portion of the connector main body is provided. The size of the opening is smaller than the opening of the opening on the outer periphery of the filter cap formed at a position facing each of the openings.

According to a ninth aspect of the present invention, there is provided the connector for hot water circulation according to any one of the first to eighth aspects, further comprising: a suction port communicating with the hot water passage for the outward path; A suction port communicating with the hot and cold water passages is formed on the front surface of the connector body, and the suction ports are formed to have different diameters.

According to a tenth aspect of the present invention, in the hot water circulation connector according to the ninth aspect, a step is formed in an inner peripheral portion of the suction port. It is.

According to an eleventh aspect of the present invention, there is provided a connecting device for hot water circulation according to any one of the first to tenth aspects, wherein the connecting device is pivotally provided at a predetermined position of the connecting device body. A concave portion is formed in the connecting member main body near the pivotal portion of the opening / closing plate and / or the partition plate.

According to a twelfth aspect of the present invention, there is provided a connecting device for hot and cold water circulation according to any one of the first to eleventh aspects, wherein the connecting device is provided at a predetermined position of the connecting body so as to be swingable. A convex portion is provided on the open side surface of the open / close plate and / or the partition plate.

According to a thirteenth aspect of the present invention, there is provided a hot water circulation connector according to any one of the first to twelfth aspects, wherein the hot water circulation connector is swingably provided at a predetermined position of the connector body. A convex part is provided on the connecting member main body portion facing the open side surface of the opening / closing plate and / or the partition plate.

According to a fourteenth aspect of the present invention, there is provided a connector for hot water circulation according to any one of the first to thirteenth aspects, in which the opening / closing plate abuts upon opening and closing of the main body of the connector. The slits are provided on the surface.

According to a fifteenth aspect of the present invention, there is provided the hot water circulation connector according to any one of the first to fourteenth aspects, wherein the hot water circulation connector according to any one of the first to fourteenth aspects is provided with an insertion portion for screw insertion formed on the connector main body. And a locking projection for preventing a screw from coming off.

[0034] According to a sixteenth aspect of the present invention, there is provided the connector for hot water circulation according to any one of the first to fifteenth aspects, wherein the hot water circulation connector according to any one of the first to fifteenth aspects further comprises a threaded insertion portion formed in the connector body. A locking projection for preventing a screw from being removed is provided on the inlet side and the outlet side.

[0035]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG.
This will be described with reference to FIG. The illustrated hot water circulation connector 1 (see FIG. 1) according to the present invention includes a filter cap 3 having a filter 2, a connector main body 4 having a hot water passage for an outbound path described later, and a forced circulation hot water supply device. The connecting member 7 has connecting portions 5 and 6 for connecting respective connecting pipes (not shown) for the forward path and the returning path to be connected to the connecting pipe (not shown).

First, the filter cap 3 has a plurality of substantially triangular front openings 8 formed radially from the center of the front face. Openings 9a and 9b are formed at predetermined intervals at two places on the lower side of the outer periphery. It is formed so that it can be crowned on the front side of the connector body 4. A circular filter 2 is provided inside the filter cap 3 so as to cover the front opening 8.

The connector main body 4 (see FIG. 1) includes a main body cap portion 10, a main body portion 11, a connection receiving member 12, and an annular packing 13.

Main body cap 10 (see FIGS. 1 to 3)
Is a circular shape that can be engaged with the inner periphery of the filter cap 3, and the first and second small holes 14 and 15 having a small arc shape are defined in the front-rear direction so as to be divided and adjacent to the left and right of the center. It is formed through. The first slot 14 and the second slot 15
Faces the front opening 8 of the filter cap 3 via the filter 2 when the filter cap 3 is mounted on the connector body 4 side. On the back side of the main body cap portion 10, as shown in FIG. 3, protrusions 19 that can be inserted into insertion concave portions 18 formed at three places of the main body portion 11, which will be described later,
Each is formed at intervals of 120 °.

The main body 11 (see FIGS. 1, 2 and 4 to 9) has a hot water passage forming portion 16 on which the main body cap portion 10 can be detachably mounted on the front side, and a hot water passage forming portion 16. And a cylindrical portion 17 formed in the center of the rear part.

The hot water passage forming section 16 is formed with a hot water passage 21 for the outward path and an auxiliary hot water passage 22 for the outward path communicating with the hot water passage 21 for the outward path on one side through a central partition 20. When the main body cap portion 10 is fitted to the hot water passage forming portion 16, the outward hot water passage 22 is in the first position.
It is formed so as to communicate with the slot 14. Further, the hot water passage 21 for the forward path is formed so as to communicate with an opening 23 formed in an outer peripheral portion obliquely below the hot water passage forming portion 16.

In the vicinity of the opening 23, the opening 23
The opening / closing plate 24 is provided so as to be openable and closable so as to be able to open and close. The opening / closing plate 24 operates so that it can be opened outward and close to the outward hot water passage 21.

Further, a communication portion 25 where the forward water passage 21 and the forward water passage 22 intersect with each other is a partition for blocking or allowing communication between the forward water passage 21 and the forward water passage 22. A plate 26 is provided so as to be openable and closable. The partition plate 26 can be opened in the direction of the above-described opening 23 and operates so as to close to the side of the subway passage 22 for the forward path.

A hole 17a is formed at the center of the hot water passage forming portion 16 of the forward water hot water passage 21 so as to communicate with the cylindrical portion 17 described above.

Further, the hot water passage 21 for the outward path has an opening 23.
An inclined portion 27 (see FIG. 4) is provided so that the cross-sectional area gradually decreases as approaching the position where the opening / closing plate 24 is provided.

On the other side, a return water passage 28 and a return auxiliary water passage 29 communicating with the return water passage 28 are formed on the other side of the hot water passage formation portion 16 via the central partition 20. I have. The return hot water passage 28
It is formed so as to communicate with the second slot 15 when the main body cap portion 10 is fitted into the hot water passage forming portion 16. The return water passage 28 is formed so as to communicate with an opening 30 formed in an outer peripheral portion obliquely below the water passage formation portion 16.

In the vicinity of the opening 30, the opening 30
An opening / closing plate 31 is provided so as to be openable and closable so that can be opened and closed. The opening / closing plate 31 operates so that it can be opened outward and close to the return hot water passage 28 side.

Further, a communication portion 32 where the return water passage 28 and the return water passage 29 intersects with each other is a partition for blocking or allowing communication between the return water passage 28 and the return water passage 29. A plate 33 is provided so as to be openable and closable. The partition plate 33 can be opened in the direction of the opening 30 described above and operates so as to close to the side of the return hot water passage 28.

A through hole 34 is formed at the center of the hot water passage forming portion 16 of the return water hot water passage 28 at the rear side.

Further, the returning hot water passage 28 has an opening 30.
An inclined portion 35 (see FIG. 4) is provided such that the cross-sectional area gradually decreases as approaching the position where the opening / closing plate 31 is provided.

In the example shown in the figure, the reference numeral 21 in the figure indicates a forward hot water passage, 22 a forward hot water passage, 28 a return hot water passage, and 29 a return hot water passage.
Reference numeral 28 in the figure may be a forward water passage, 29 may be a forward water passage, 21 may be a return water passage, and 22 may be a return water passage. Depending on how the connecting pipe for the outward path (not shown) and the connecting pipe for the return path (not shown) are connected to the connecting member 7, a passage configuration as shown in the figure may be obtained, or the above-mentioned 28 may be a hot water passage for the outward path. The passage configuration is as follows.

The connection receiver 12 (see FIG. 1) is formed by forming a flange-shaped receiving portion 37 at one end of a cylindrical portion 36, and a male screw 38 is formed on the outer peripheral surface of the cylindrical portion 36. . The receiving portion 37 has a plurality of protrusions 3 at an integral interval.
9 are formed, and a screw hole 40 is formed in each protrusion 39. The predetermined protrusion 39 of the receiving portion 37 is configured to be able to be coupled to the above-described hot water passage forming portion 16 via a screw (not shown).

The packing 13 (see FIG. 1) is formed in a ring shape from rubber, synthetic resin, or the like.

The connecting member 7 (see FIG. 1) has a cylindrical shape with a bottom and a cylindrical portion 41 is provided at the center. Spanner hooks 42a are provided on the outer cylinder portion of the cylinder portion 41 at four positions on the outer periphery at 90 ° intervals. The cylindrical portion 41 communicates with the connecting portion 5 formed integrally with the cylindrical portion 41. The space passage 43 between the tubular portion 41 and the outer tubular portion 42 is connected to the connecting portion 6 formed integrally with the tubular portion 41.
Is in communication with Further, a female screw 44 is formed on the inner peripheral surface near the opening end of the outer cylindrical portion 42, and the male screw 3 of the connection receiver 12 is formed.
8 can be screwed.

In the hot water circulation connector 1 having the above-described structure, the hot water passage forming portion 16 is connected to the connection receiving member 12 and the main body cap 10 is attached to the front surface of the hot water passage forming portion 16. Fit and then filter cap 3
Is fitted to the front surface of the main body cap 10. In this case, the opening 9a of the filter cap 3 is
The other opening 9 b formed in the outer peripheral portion of the filter cap 3 coincides with the opening 30 of the hot water passage forming portion 1.
6 with the opening 23.

The filter cap 3 and the connector main body 4 thus combined are arranged in a bathtub, and the filter cap 3 is exposed in the bathtub so that the filter cap 3 is formed in a hole formed in a side portion (not shown) of the bathtub. Connection receiver 1 via packing 13
The second cylinder 36 is inserted. Then, the female screw 44 of the connection member 7 is screwed into the male screw 38 of the cylindrical portion 36 of the connection receiver 12 from outside the bathtub, and the filter cap 3 and the connection member body 4 and the connection member 7 are connected to the side of the bathtub. Attach to In this case, the openings 30 and 23 of the connector body 4 and the openings 9a and 9b of the filter cap 3 face the bottom of the bathtub. The cylindrical portion 17 of the main body 11 is inserted into and connected to the cylindrical portion 41 of the connection member 7.

In the case of the illustrated example, an outward connection pipe (not shown) is connected to the connection section 5 of the hot water circulation connection tool 1 attached to the side (not shown) of the bathtub in this manner. Connection part 6
Is connected to the return connection pipe (not shown), but the connection may be reversed. These two connection pipes are connected to a forced circulation water heater (not shown).

With the hot water circulation connector 1, each connection pipe, and the forced circulation hot water heater thus attached, the bathtub is filled with water and the forced circulation hot water heater is operated.

In this case, the hot and cold water flowing from the connecting portion 5 into the cylindrical portion 17 of the connector body 4 via the cylindrical portion 41 enters the outward hot water passage 21 of the hot water passage forming portion 16 and the forward hot water passage 21. The opening / closing plate 24 is opened by water pressure from the opening 23 through the opening 23 and discharged to the bottom side in the bathtub. At this time, the hot and cold water in the bathtub is filtered by the suction force of this discharge flow.
Body cap 1 through filter 2 through front opening 8 of
And flows into the outgoing sub-water passage 22 through the first groove 14. The hot and cold water that has entered the outward hot water passage 22 opens the partition plate 26, merges with the hot water in the outward hot water passage 21, and is discharged from the opening 23 into the bathtub.

Further, since the inclined portion 27 is provided so that the cross-sectional area becomes gradually smaller as approaching the opening 23 (the position where the opening / closing plate 24 is provided) (see FIG. 9), The force of the water flow discharged from the opening 23 is increased, and the hot water on the side of the subway hot water passage 22 for the outward path is more strongly sucked.

On the other hand, in this state, suction is performed from the front opening 8 of the filter cap 3 through the filter 2 to the second slot 15 of the main body cap 10, and further from the second slot 15 into the return hot water passage 29. The inflowing hot water opens the partition plate 33 by the water flow and flows into the return water passage 28, from which the through hole 34 (see FIG. 5), the cylindrical portion 36 of the connection receiver 12 and the main body. Tube part 17 of part 11
From the connection portion 6 through the space passage 43 of the connection member 7 to return to the return connection pipe (not shown) and the forced circulation water heater (not shown). At this time, the on-off valve 31 is closed by the suction force.

As described above, in the connecting device for hot water circulation 1 of the present invention, the hot water in the bathtub is sucked into the connecting device main body 4 using the entire front opening 8 of the filter cap 3 at all times. The circulation of hot and cold water inside is also performed more efficiently.

The above-mentioned partition plates 26 and 33 are configured such that the passages are closed because dust or the like adheres to the filter 2 and it is difficult to flow the hot water in the bathtub into the sub-water passage 22 for the outward path. In this case, the hot water in the forward water passage 21 is removed from the main body cap 1 by the hot water suction force of the return water passage 28.
This is to prevent the water from being sucked into the return water path 28 through the gap between the filter 0 and the filter 2.

In the case where a connecting pipe 5 (not shown) for the return path is connected to the connecting section 5 of the connecting member 7 and a connecting pipe (not shown) for the outward path is connected to the connecting section 6, The hot water is discharged from the opening 30 of the connector body 4 into the bathtub, and the hot water in the bathtub is removed from the filter cap 3.
From the front opening 8 through the filter 2 to the outgoing hot water passage 22, the outgoing hot water passage 21, and a forced circulation water heater (not shown). In this case, each partition plate 26, 33,
The opening / closing plate 31 is in an open state, and the opening / closing plate 24 is in a closed state.

Next, the open / close plates 24 and 31 and / or the partition plates 26 and 33 used in the hot / water circulation connector according to the present invention.
Is preferably configured as follows. Although the opening and closing plates 24 and 31 and the partition plates 26 and 33 are different in size, but have the same shape of the main part, for convenience, the opening and closing plates 24 and 3 are used.
1 will be described with reference to FIG.

Each of the open / close plates 24, 31 (and / or the partition plate 2)
6, 33) project from both sides of the upper end so as to be swingably locked at predetermined positions of the openings 23, 30 of the connector body 4 and the communication portions 25, 32 (see FIG. 1). The locking portion 24a (31a, 26a, 33a) is formed, and the upper end 2
4b (31b, 26b, 33b) is formed in a concave shape inside. The depression may be formed in an inverted trapezoidal shape as shown in the figure, in an inverted arc shape, in a concave shape, or in various other shapes.

If the upper end 24c (31c, 26c, 33c) is formed horizontally as indicated by the imaginary line in FIG. 10, the open / close plates 24, 31 (and / or the partition plate 2) are formed.
6, 33) are locking portions 24a (31a, 26a, 3) on both sides.
At the time of opening / closing operation with 3a) as a fulcrum, if dust 60 or the like adheres between the upper end 24c (31c, 26c, 33c) indicated by a virtual line and the main body 11 adjacent to the upper end,
The dust or the like 60 hinders the opening / closing operation (movement of the opening / closing plate 24 or the like in the rotation direction), so that the opening / closing plates 24 and 31 (and / or the partition plates 26 and 33) cannot be opened or become difficult to open. It is conceivable that a desired opening degree cannot be obtained.

However, as described above, the open / close plates 24, 31
(And / or partition plates 26, 33) at the upper end 24b (31
b, 26b, 33b) are depressed, so that even if the dust 60 is sandwiched between the upper end 24b (31b, 26b, 33b) and the main body 11, the opening / closing operation is not hindered. Opening / closing plates 24, 3 for a long time
1 (and / or the partition plates 26 and 33) can be smoothly opened and closed.

The open / close plates 24, 31 and / or the partition plates 26, 33 are preferably formed of a synthetic resin material having a specific gravity of less than 1 or a metal material. Usually, each open / close plate 24, 31 and / or partition plate 26, 33
Is sucked to a predetermined portion of the main body 11 by a suction action of a circulation pump (not shown) of a forced circulation water heater (not shown) so as to close the passage. , 31 and / or the partition plates 26, 33, depending on the balance between the suction force of the circulating pump (not shown) and the weight of the open / close plates 24, 31 and / or the partition plates 26, 33. If there is no suction force equal to or more than a predetermined value, it may not be able to adhere to a predetermined position side of the main body 11 described above.

However, as described above, the open / close plates 24, 31
And / or the partition plates 26 and 33 are formed of a material having a specific gravity of less than 1, so that the bathtub is in a floating state when the bathtub is filled with hot and cold water, and naturally hits a predetermined position side of the main body portion 11. The passage can be reliably closed.
The open / close plates 24 and 31 and / or the partition plates 26 and 33 may be made of a synthetic resin having a specific gravity of 1 or may be formed of a hollow material. , 31 and / or the partition plates 26, 33.

In the connecting device for hot and cold water circulation according to the present invention, as shown in FIG. 11, the open / close plates 24, 31 and / or the partition plates 26, 33 are provided near the lower ends on both sides (or one side). It is preferable to provide a horizontally long projection 47 along the lower end 48. As shown in FIG. 12, the openings 23, 30 (and / or
Alternatively, the side surfaces near the lower end 48 of the communication portions 25, 32) and the open / close plates 24, 31 (and / or the partition plates 26, 3
If dust 60 etc. adheres to the contacting point of 3),
Even when the open / close plates 24, 31 (and / or the partition plates 26, 33) close the openings 23, 30 (and / or the communication portions 25, 32), the main body 11 and the open / close plates 24, 31 ( And / or gaps are formed between the partition plates 26 and 33), and the flow of hot water cannot be completely shut off.

However, as described above, the open / close plates 24, 31
By providing the horizontally long projections 47 on the (and / or partition plates 26, 33), the open / close plates 24, 31 (and / or the partition plates 26, 33) are completely tilted.
The lower surface 62 at the distal end of the projection 47 is not required to be closed.
As a result, the openings 23 and 30 (and / or the communication portions 25 and 32) can be reliably closed even if some dust 60 adheres. Therefore, the operation of hot water circulation by the hot water circulation connector is not hindered.

The reason why the convex portions 47 are provided on both sides of the opening and closing plate 24 and the like is that the same operation and effect as described above can be obtained even if the mounting direction is reversed when the opening and closing plate 24 and the like are attached to the main body 11. It is because it was possible to obtain.

In the connecting device for hot and cold water circulation according to the present invention, as shown in FIGS. 13 and 14, the opening and closing plates 24 and 31 are provided with a large number of fine holes 49a and slits 49b so as to have a filter function. It may be. Opening / closing plate 2
By giving the filter function to the filters 4 and 31, even if the filter 2 of the filter cap 3 is clogged with dust or the like and is closed, the fine holes 49a and the slits 49b of the open / close plates 24 and 31 are self-sealing during pouring. It is hardly clogged by being cleaned, and the additional cooking circulation of hot and cold water can be continued without any trouble. In addition, there is a concern that the hot water may remain in the hot water circulation connector even after the hot water is drained from the bathtub, and that the hot water may freeze in winter or the like. By providing the slit 49b, since the hot water in the hot water circulation connector is discharged into the bathtub through the holes 49a and the like, it is possible to prevent the hot water from remaining in the hot water circulation connector and freezing. be able to.

The reason why the slits 49b are provided on both sides of the open / close plates 24, 31 is that the same operation and effect as described above can be obtained even when the attach directions are reversed when the open / close plates 24, 31 are attached to the main body 11. Because it is possible to obtain Further, instead of providing fine holes 49a and slits 49b in the open / close plates 24 and 31, as shown in FIG.
A plurality of slits 62 may be provided on the one locking surface 61 at predetermined intervals in the depth direction in the figure. By providing the slit 62 in the locking surface 61, the opening / closing plates 24 and 31 without the hole 49a (see FIG. 13) or the slit 49b can be provided.
When the hot water passage is closed by the opening / closing plate provided with the holes 49a and the slits 49b, the hot water flows out of the slits 62 of the locking surface 61 and flows into the opening / closing plates 24 and 31. The same operation and effect as when the fine holes 49a and the slits 49b are provided can be obtained.

In the connector for hot water circulation according to the present invention, the connector body 4 (see FIG. 1) is used to regulate the discharge direction of hot water discharged from the hot water circulation connector into the bathtub.
Opening 2 of main body 11 and / or main body cap 10
It is preferable to provide rectifying portions 23a and 30a (see FIG. 4) near 3 and / or 30 (outside and / or inside of the open / close plates 24 and 31). The rectification unit (not shown) is formed in an elongated plate shape or a square material (rib shape), makes the flow velocity discharged from the openings 23 and / or 30 uniform, and allows the discharged hot and cold water in a bathtub. Since it is forcibly guided in the upward direction in the inside, the stirring of hot and cold water in the bathtub can be improved.

In the connector for hot and cold water circulation according to the present invention, the size of each of the openings 23 and 30 formed on the outer periphery of the main body 11 of the connector body 4 (see FIG. 1) is Openings 9b, 9 on the outer periphery of the filter cap 3 formed at positions facing the respective openings 23, 30.
It is preferable that the opening is formed smaller than the opening a. By doing so, it is possible to prevent the inner peripheral edges of the openings 9b, 9a of the filter cap 3 formed of a metal member from being exposed inside the openings 23, 30 of the main body 11, and to clean the filter. In such a case, it is possible to prevent injuries to the fingers at the inner peripheral edges of the openings 9b, 9a.

Further, in the connecting device for hot water circulation according to the present invention, the suction port 50 communicating with the outgoing auxiliary hot water passage 22 (see FIG. 1) of the main body 11 of the connecting device main body 4; It is preferable that the suction port 51 communicating with 29 be formed in the main body cap portion 10 corresponding to the front surface of the connector body 4 and that the diameters of both suction ports 50 and 51 be different.

Further, as shown in FIGS. 15 and 16, it is preferable to form two steps on the inner peripheral portion 52 of the suction ports 50 and 51. By doing so, the hose 53 (see FIG. 15) can be connected to the suction port 50 (or 51) when priming the circulation path or the circulation pump.
A shower hose 54 (see FIG. 16) having a diameter smaller than 3 can be connected to the suction port 50 (or 51).

As described above, by making the diameters of the suction ports 50 and 51 different or by providing a step, it is possible to easily connect different diameters such as the ready-made hose 53 and the shower hose 54 to the suction ports 50 and 51. Priming can be performed easily.

Further, in the connecting device for hot and cold water circulation according to the present invention, the main body 11 (see FIG. 17) of the connecting device main body 4 (see FIG. 1).
a, see FIG. 18), open / close plates 24, 31 and / or partition plates 26, 33 which are swingably locked at predetermined positions of the respective openings 23, 30 and / or communication portions 25, 32 (see FIG. 1). A concave portion 56 is preferably formed in the main body cap portion 10 in the vicinity of the pivot portion 55 of the main body. As shown in FIG. 19, when the dust 60 or the like adheres to the vicinity of the pivot portion 55 described above, the dust 60 etc.
And the like, the opening of the opening / closing plate 24 or the like is restricted and the opening cannot be opened to a predetermined opening.

However, by forming the concave portion 56 as described above, the dust 60 or the like that accumulates in the vicinity of the pivot portion 55 gets into the concave portion 55 and thus the dust 60 or the like
The opening / closing plate 24 and the like can be opened to a predetermined opening degree without being obstructed by the air. Also, as shown in FIG.
The same effect can be obtained even if the projections are provided on the first and / or partition plates 26 and 33.

In the connecting device for hot and cold water circulation according to the present invention, the open / close plates 24, 31 (and / or the partition plates 26, 3
The projection 58 may be provided on the open side surface 57 (see FIG. 18) of 3). By doing so, when the open / close plates 24, 31 (and / or the partition plates 26, 33) are opened as shown in FIG. 18, the open / close plates 24, 31 (and / or the partition plates 26, 33) become the main body. Surface contact with the cap portion 10 side and fixation to the main body cap portion 10 due to surface tension of hot and cold water can be prevented.

Further, in the connecting device for hot and cold water circulation according to the present invention, a convex portion 59 is provided on the main body cap portion 10 facing the open side surface 57 (see FIG. 17) of the open / close plates 24, 31 and / or the partition plates 26, 33. Also in the case of providing, the same operation and effect as described above can be obtained.

FIGS. 20 to 25 show the main body cap portion 10 and the main body portion 1 constituting the connecting device main body 4 according to the present invention.
FIG. 3 is a view relating to another example showing 1 and has the same basic structure as the hot water circulation connection device 1 (see FIG. 1), and the same reference numerals are assigned to the same portions, and the description is omitted.

Next, FIG. 26 and FIG.
0, the main body 11, and the connection receiver 12 are connected by screws 44. Holes 70 for inserting the insertion portions 45 protruding from the back surface of the main body cap portion 10 are formed at equal intervals in the circumferential direction in the main body portion 11 of the connector main body 4 shown in FIG. Insertion portions 45 are formed on the back surface of the main body cap portion 10 so as to be inserted into the respective holes 70. The insertion portion 45 is formed in a cylindrical shape so as to allow the screw 44 to pass therethrough, and has the following locking projection 46a.

That is, at the entrance side of the insertion portion 45,
The locking projection 46a for preventing the screw from coming off
When the threaded portion 64 is inserted into the insertion portion 45, the threaded portion 64 is threaded at the inner peripheral tip of the locking projection 46 a while the threaded portion 64 is being inserted into the insertion portion 45.
5 can be inserted. Thus, the locking projection 4
By forming 6a, the threaded portion 64 inserted into the insertion portion 45 is obstructed by the locking projection 46a. Therefore, the screw 44 does not fall off the insertion portion 45. still,
The locking projection 46a is located on the inner peripheral portion of the insertion portion 45 on the entrance side.
It may be formed at three or more places, or may be formed in an annular shape.

FIGS. 29 and 30 show the main body cap portion 10.
FIG. 11 is a diagram showing another structure for connecting the main body 11 and the connection receiving member 12 with screws 44. In this example, locking projections 46a and 46b for preventing screws from being removed are formed on the entrance side and the exit side of the insertion portion 45 of the main body cap portion 10, respectively. In the structure of the insertion portion 45 in this example, the locking projection 46a on the entrance side is used.
The interval X between them is formed so as to have an interval (diameter) slightly smaller than the outer diameter D of the thread portion 64 of the screw 44. Screw 44
When the threaded portion 64 is inserted into the insertion portion 45, the threaded portion 64 is inserted into the insertion portion 45 while the tip of the locking projection 46a is cut off by the threaded portion 64 in the same manner as described above. Of course, if the distance X between the locking projections 46a can prevent the screw thread portion 64 inserted into the insertion portion 45 from going outside,
Any interval may be used.

Thread portion 64 screwed into insertion portion 45
Is prevented from exiting toward the connection receiving member 12 by the locking projection 46b on the outlet side, and normally stays in the insertion portion 45. That is, since the axis of the screw 44 that is in an unstable state in the insertion portion 45 does not substantially coincide with the center of the diameter of the opening of the locking projection 46b, the screw portion 64 is usually used. Is prevented from hitting the locking projection 46b and protruding toward the connection receiver 12. The distance d between the locking projections 46b can be set to any size as long as the screw thread portion 64 inserted into the insertion portion 45 can be prevented from protruding toward the connection receiver 12. The configuration of the locking projection 46b is substantially the same as the configuration of the locking projection 46a, and a detailed description thereof will be omitted.

[0089]

As described above, according to the connecting device for hot water circulation of the present invention, the water is discharged into the bathtub from the opening of the hot water passage for the outward path by the operation of the forced circulation type hot water supply device, and from the front opening of the filter cap. Also when the hot water is sucked into the return hot water passage through the return hot water passage, the hot water in the bathtub is also sucked into the forward hot water passage from the front opening of the filter cap, and this suction flow is performed. Hot water is discharged from the opening through the hot water passage for the outward path.

This is because the conventional connection device for hot and cold water circulation uses only one side of the filter provided at the front opening of the filter cap. For this reason, the filter had to be cleaned in a short period of time, but in the present invention, since hot and cold water is always sucked into the connector body using the entire surface of the filter, dust and the like in the bathtub adhering to the filter are removed. Since it adheres to the entire surface of the filter in a dispersed manner, the period of clogging is longer than in the case where the filter adheres to one side, and the interval between filter cleanings can be extended. For example, cleaning of the filter cap within one year can be performed. The number of times can be reduced, and cleaning of the filter cap becomes easier than before. Also,
Since the opening and closing plates 24 and 31 and / or the partition plates 26 and 33 are plate-shaped and can be swung, compared with the case where rubber material is used,
Deterioration during use does not cause cracks and the like, and the function can be continuously exhibited over time.

The cross-sectional area of each hot water passage before each opening communicating with the outward hot water passage and the return hot water passage of the connector main body is formed so as to become gradually smaller as approaching each opening. Because of this, the momentum of the hot water discharged from the hot water passage for the outward path through the opening becomes stronger, and the momentum is also drawn into the auxiliary hot water path for the outward path from the bathtub and merges with the hot water of the hot water path for the forward path. It becomes stronger, and the hot and cold water in the bathtub can be effectively stirred.

Further, since the upper end portion of the opening / closing plate and / or the partition plate is formed to be depressed inward, dust or the like does not bite between the upper end portion and a predetermined portion of the connecting member main body, and can be used for a long time. The opening / closing operation of the opening / closing plate and / or the partition plate can be performed smoothly, and the predetermined flow operation of hot and cold water is not hindered.

Further, by setting the material of the open / close plate and / or the partition plate to a specific gravity of less than 1, when the hot tub is filled with hot water, the open / close plate and / or the partition plate are in a floating state. The passage can be reliably closed by hitting a predetermined location side of the component body. Therefore, the predetermined flow operation of the hot and cold water is not hindered.

Further, by providing a convex portion along the lower end near the lower end on at least one side of the opening / closing plate and / or the partition plate, the opening / closing plate and / or the partition plate and the like are covered with dust and the like. Even if it adheres between the partition plate and the predetermined portion of the connector main body and cannot be completely closed, the convex portion abuts on the passage surface of the connector main body, so that the opening and / or the communication portion of the connector main body can be securely formed. Can be closed. Therefore, the operation of hot water circulation by the hot water circulation connector is not hindered.

Further, by providing a large number of fine holes and / or slits on the opening / closing plate to provide a filter function, even if the filter cap is closed by dust or the like,
Since the above-mentioned opening / closing plate can be self-cleaned at the time of hot water, it is hard to be closed, the additional cooking circulation of hot water can be continued, and the operation of hot water circulation by the hot water circulation connector is not hindered.

In addition, by providing a rectifying portion in the vicinity of the opening of the connector main body to regulate the direction of hot and cold water discharge, the flow velocity discharged from the opening is made uniform, and the discharged hot and cold water flows upward in the bathtub. , It is possible to improve the stirring of hot and cold water in the bathtub.

The size of the opening of each opening formed on the outer periphery of the connector body is smaller than that of the opening of the outer periphery of the filter cap formed at a position facing each of the openings. Due to the formation, the inner peripheral edge of the opening portion of the filter cap does not hit a finger at the time of handling such as cleaning, and the work such as cleaning can be performed safely.

A suction port communicating with the auxiliary hot water passage for the forward path and a suction port communicating with the auxiliary hot water path for the return path are respectively formed on the front surface of the connector body, and the diameters of both the suction ports are different. In this case, a ready-made hose or a shower hose having a diameter different from that of the hose can be connected to the suction port at the time of priming, and priming can be easily performed.

Further, since a step is formed in the inner peripheral portion of the suction port, ready-made hoses or shower hoses having different diameters can be reliably connected to a desired suction port, and priming work can be performed quickly.

Further, a concave portion is formed in the connecting member main body near the pivotal portion of the opening / closing plate and / or the partition plate provided at a predetermined position of the connecting member main body so as to be swingable.
Alternatively, dust or the like adhering to the vicinity of the pivotal portion of the partition plate accumulates in the recess, so that it is possible to prevent the opening degree of the opening / closing plate and / or the partition plate from being affected.

Further, by providing a convex portion on the open side surface of the opening / closing plate and / or the partition plate provided to be able to swing at a predetermined position of the connecting device main body, or by providing the connecting device main body portion facing the open side surface. At the time of opening, a gap is formed between the opening / closing plate and / or the partition plate and the connector body, and the opening / closing plate and / or the partition plate and a predetermined portion of the connector body are not fixed by the surface tension of the hot water. It does not hinder circulation.

Further, since the slit is provided on the locking surface of the connector body with which the opening / closing plate abuts when closed, hot water can flow through the slit even if the filter cap is closed by dust or the like. Additional cooking circulation can be continued. Therefore, the operation of hot water circulation by the hot water circulation connector is not hindered.

Further, since a locking projection for preventing a screw from being removed is formed in an insertion portion for inserting and removing a screw formed in the connecting member main body, when a screw portion of the screw is inserted into the insertion portion, a screw thread is formed. The part hits the locking projection and is prevented from falling out of the insertion part. Therefore, when attaching the connection device for hot water circulation to the bathtub, it is possible to solve the inconvenience that the screw must fall from the connection device main body and be searched as in the related art.

Further, by forming locking projections for preventing screws from being removed at the entrance side and the exit side of the insertion portion for screw insertion formed on the connector main body, the above-described effects can be obtained, and the exit side is provided. The locking projection prevents the thread from projecting out of the outlet. This means
When trying to match the screw hole of the connection receiver with the insertion part where the screw is inserted, the thread part protrudes from the insertion part, and it takes time to match the screw hole of the connection receiver with the insertion part. The connection work can be performed quickly.

[0105]

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an example of a hot water circulation connector according to the present invention.

FIG. 2 is an exploded perspective view of a main part of the connector for hot water circulation according to the present invention.

FIG. 3 is a perspective view showing a back surface of the connector body for hot water circulation according to the present invention.

FIG. 4 is a front view of the hot water circulation connector body according to the present invention.

FIG. 5 is a back view of the hot water circulation connector main body according to the present invention.

FIG. 6 is a cross-sectional view of the connector body for hot and cold water circulation according to the present invention, taken along line AA.

FIG. 7 is a cross-sectional view of the connecting body for hot and cold water circulation according to the present invention, taken along line BB.

FIG. 8 is a side view of the connector body for hot water circulation according to the present invention.

FIG. 9 is a cross-sectional view of the connector body for hot and cold water circulation according to the present invention, taken along the line CC.

FIG. 10 is an explanatory diagram viewed from the front of an opening / closing plate or a partition plate according to the present invention.

FIG. 11 is an explanatory diagram viewed from a side surface of an opening / closing plate or a partition plate according to the present invention.

FIG. 12 is an explanatory diagram in the case where the opening / closing plate or the partition plate shown in FIG. 11 is used.

FIG. 13 is an explanatory diagram viewed from the front of an opening / closing plate of another example according to the present invention.

FIG. 14 is a side view of FIG.

FIG. 15 is an explanatory diagram showing a cross section in a state where a hose is connected to the suction port.

FIG. 16 is an explanatory diagram showing a cross section in a state where a shower hose is connected to the suction port.

FIG. 17 is an explanatory diagram showing a relationship between a main part of a main body cap portion and an opening / closing plate or a partition plate according to another example of the present invention.

FIG. 18 is an explanatory view showing a connection relationship between a main part of a main body cap portion and an opening / closing plate or a partition plate according to still another example of the present invention.

FIG. 19 is an explanatory diagram of a conventional example.

FIG. 20 is a front view of another example of the main body according to the present invention.

FIG. 21 is a side view of a main body of another example according to the present invention.

FIG. 22 is a rear view of a main body of another example according to the present invention.

FIG. 23 is a front view of another example of the main body cap portion according to the present invention.

FIG. 24 is a side view of another example of the main body cap portion according to the present invention.

FIG. 25 is a sectional view of a main body cap portion.

FIG. 26 is an explanatory view of a screw mounting portion in the hot water circulation connector according to the present invention.

FIG. 27 is an explanatory diagram showing a state in which the main body and the main body cap are connected to the connection receiver with screws.

FIG. 28 is an explanatory view in which a slit is provided in a locking surface of a connecting tool main body with which an opening / closing plate abuts.

FIG. 29 is an explanatory diagram of another example of a screw mounting portion in the hot water circulation connector according to the present invention.

FIG. 30 is an explanatory view showing a state where the main body and the main body cap are connected to the connection receiving member with screws.

FIG. 31 is an explanatory view of a screw mounting portion in a conventional hot water circulation connector.

FIG. 32 is an explanatory view of a conventional hot water circulation connector with screws attached.

[Explanation of symbols]

1 Hot water circulation connector 28
Return water path 2 Filter 29
Return hot water passage 3 Filter cap 30
Opening 4 Connector body 31
Opening / closing plate 5 Connection part 31a
Locking part 6 Connecting part 31b
Upper end 7 Connecting member 32
Communication part 8 Front opening 33
Divider 9a Opening 33a
Locking part 9b Opening 33b
Upper end 21 Outgoing hot water passage 44
Screw 22 Outbound hot water passage 45
Insertion part 23 Opening 47
Convex part 24 Opening / closing plate 46a
Locking projection 24a Locking portion 46
b Locking projection 24b Upper end 49
a hole 25 communication part 49b
Slit 26 Partition plate 26a Locking portion 26b Upper end

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Minoru Hatano 2-33 Wakamatsucho Higashi, Tondabayashi-shi, Osaka Pref. Hatano Works Co., Ltd. (72) Toru Tsuruta 43-1 Uohamacho, Higashinada-ku, Kobe Japan Nippon Yupro Limited (72) Inventor Yoshinori Shichi 43-1 Uohama-cho, Higashi-Nada-ku, Kobe City Inside Japan Yupro Corporation (72) Inventor Hiroki Kuwahara 43-1 Uohama-cho, Higashi-Nada-ku, Kobe Japan F-term (Reference) 3L037 DA02 DB07

Claims (16)

[Claims] 1. A filter cap in which a filter is provided on a front opening and a filter cap having an opening formed on an outer peripheral portion is provided on a front portion of a connecting member main body in which respective hot and cold water passages for an outward path and a returning path are formed. At the rear of the main body, a connecting member having a connecting portion for connecting each connecting pipe for the forward path and the return path to be connected to the circulation path is provided, and a hot water circulation connector provided on the side of the bathtub with the filter cap facing the bathtub. In the connector body, the outward hot water passage and the return hot water passage are respectively formed and partitioned, and the discharge port, which is one opening communicating with the forward water hot water passage and the return hot water passage, is connected to the connecting body. An opening / closing plate is formed at each of the outer peripheral portions, and an opening / closing plate is provided at each of the openings, and a partition plate that can be opened / closed is provided at the suction opening, which is the other opening of the hot water passage for the forward path and the hot water passage for the return path. Hot water circulation connector according to claim. 2. A cross-sectional area of each hot water passage in front of each opening communicating with the outward hot water passage and the return hot water passage of the connector main body is formed so as to become gradually smaller as approaching each opening. The connection device for hot and cold water circulation according to claim 1, characterized in that: 3. The opening / closing plate and / or the partition plate have locking portions on both sides of an upper end portion capable of swingably locking at a predetermined position of the connector body, and the upper end portion is formed to be depressed inward. The connection device for hot and cold water circulation according to claim 1, wherein the connection device has a configuration. 4. The material of the opening / closing plate and / or the partition plate has a specific gravity of 1
The connecting device for hot and cold water circulation according to claim 1, wherein the number is less than or equal to. 5. The hot and cold water circulation according to claim 1, wherein the opening / closing plate and / or the partition plate have a convex portion provided at least in the vicinity of the lower end on one side thereof along the lower end. Fittings. 6. The connection device for hot and cold water circulation according to claim 1, wherein the opening / closing plate has a filter function by providing a large number of fine holes and / or slits. . 7. The connection device for hot-water circulation according to claim 1, further comprising a rectifying portion for regulating a hot-water discharge direction near the opening of the connection device body. 8. The size of the opening of each opening formed in the outer periphery of the connector main body is smaller than that of the opening of the outer periphery of the filter cap formed in a position facing each of the openings. 3. The method according to claim 1, wherein
7. The connection device for hot and cold water circulation according to any one of 7. 9. A suction port communicating with the hot water path for the outward path and a suction port communicating with the hot water path for the return path are respectively formed on the front surface of the connector body, and the diameters of both the suction ports are different. The hot and cold water circulating connector according to any one of claims 1 to 8, wherein: 10. The connection device for hot and cold water circulation according to claim 9, wherein a step is formed in an inner peripheral portion of the suction port. 11. A connecting part main body in the vicinity of a pivotal part of an opening / closing plate and / or a partition plate provided at a predetermined position of the connecting part main body so as to be swingable, wherein a concave portion is formed. 1
The connector for hot and cold water circulation according to any one of claims 10 to 10. 12. The connecting device according to claim 1, wherein a convex portion is provided on an open side surface of an opening / closing plate and / or a partition plate that is swingably provided at a predetermined position of the connector body. The connector for hot and cold water circulation according to 1. 13. A connecting part main body portion facing an open side surface of an opening / closing plate and / or a partition plate provided to be able to swing at a predetermined position of the connecting part main body, is provided with a convex portion. 13. The connection device for hot and cold water circulation according to any one of 1 to 12. 14. The connector according to claim 1, wherein a slit is provided on a locking surface of the connecting member main body with which the opening / closing plate abuts when closed.
14. The connection device for hot and cold water circulation according to any one of claims 13 to 13. 15. The hot and cold water circulation according to any one of claims 1 to 14, wherein a locking projection for preventing a screw from being removed is provided in an insertion portion for inserting and attaching a screw formed in the connecting member main body. Fittings. 16. The screw connector according to claim 1, wherein locking projections are provided on the inlet side and the outlet side of the insertion portion for screw insertion formed on the connector main body. The connector for hot and cold water circulation according to 1.