JP2014149001A - Two-cock type water stop cock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an integrated two-cock type water stop cock that can operate in a water supply, hot water supply or water stop state while separating a mainstream side from a branch side, can shorten a surface interval to make compactification while simplifying a structure, and can be piped in a narrow piping space.SOLUTION: A shaft attaching part 12 is provided in a water stop cock body 1 having a water stop mechanism 10. A branch mechanism 11 is provided at an adjacent position of the shaft attaching part 12. A branch port 15 of the branch mechanism 11 is arranged in a direction crossing a direction of a flow channel 2 of the water stop cock body 1, to shorten a surface interval L.

Description

  The present invention relates to a two-stop water faucet that is attached to a narrow piping space such as a kitchen or a bathroom vanity, for water supply, hot water supply, or water stop for the mainstream side, the branch side, or both. .

  Currently, for example, water supply and hot water supply pipes in apartment buildings are being prefabricated, and in the pipes under the kitchen and vanity, each contractor installs a mixing faucet, water purifier, dishwasher, disposer, etc. When combining, in order to cope with the construction conditions that differ depending on the site, such as the equipment to be connected and the installation position, conventional local construction is often performed by each construction method. In such construction, pipes taken from underfloor pipes into cabinets such as kitchen sinks are connected from the mainstream side to the end faucet side equipment via branch joints and branch stopcocks in the narrow pipe space. Branch off.

Furthermore, in addition to using these branch joints and branch stop cocks, a two-stop water stop cock is known as one used for piping into a cabinet such as a kitchen sink. The two-stop water stop cock is provided so that the main flow side and the branch side can be controlled independently of each other.
For example, the branch stop cock of Patent Document 1 is used to supply water to the water purifier or the like and stop the water, and the connecting tube portion of the branch pipe having the branch plug is connected to the cylindrical portion of the main pipe having the stop cock. It is fitted externally and this branch pipe is rotatable around the axis of the cylindrical portion.
In Patent Document 2, a straight main pipe part and a branch pipe part projecting in the radial direction of the main pipe part are integrally formed in a body provided with a water stop cock and a branch plug inside. The water stop spindle for driving and the branch spindle for driving the branch stopper are branch stop cocks attached within a range of 30 degrees from the same direction around the axis of the main pipe portion.
The branch stop cock of Patent Document 3 is provided so that water can be discharged from the water supply port to the branch side water discharge port and the mixing plug side water discharge port by rotating the branch side handle and the mixing plug side handle.
As described above, the two-stop water stop valve has a water stop mechanism on each of the branch side and the main flow side, and is a mechanism that adjusts the flow rate on each flow path side.

JP 2012-52608 A JP 2008-115668 A Design Registration No. 1310304

  If piping such as the above-mentioned branch joints or branch stop cocks is used, or if equipment such as a dishwasher breaks down or maintenance is performed, work will be carried out after closing the stop cock. When the water stop cock is closed, other branch side channels other than necessary are also closed, and other end side devices cannot be used. In order to avoid this, a stop cock or a valve may be attached to each device or piping may be bypassed. In these cases, it becomes difficult to connect the piping to a narrow piping space by increasing the overall size. Furthermore, since the piping is complicated and the number of connection points is increased, the construction work becomes troublesome, and it is also a major concern that the complexity of the piping hinders quality, function and aesthetics.

The double stop cock is intended to solve the problem of piping due to branch joints and branch stop cocks, but the branch stop cock of Patent Document 1 has a complicated structure and a large number of parts. Therefore, when the main pipe and the branch pipe at the branch water stop point are formed by casting, the core mold of the casting is complicated, so that the molding becomes difficult.
In the branch stop cocks of Patent Document 2 and Patent Document 3, the branch pipe part is integrally formed in the radial direction with respect to the straight main pipe part, but between these, the main pipe side water stop handle and A fixed interval is provided in order to enable each of the branch-side water-stopping operations to be rotated, and as a result, the space between the surfaces becomes large and a large piping space is required. For this reason, the space in the cabinet such as the kitchen sink was narrow.

  The present invention has been developed in order to solve the conventional problems, and the object of the present invention is to provide an integrated two-stopper capable of operating the main stream side and the branch side independently in a water supply, hot water supply or water stop state. The present invention is to provide a two-stop water faucet that can be compact by shortening the space while simplifying the structure, and can be piped in a narrow piping space.

  In order to achieve the above object, the invention according to claim 1 is provided with a shaft mounting portion in a water faucet body having a water stopping mechanism, a branch mechanism provided at a position adjacent to the shaft mounting portion, and a branch of the branch mechanism. This is a two-stop water stop cock in which the mouth is arranged in a direction crossing the flow path direction of the stop cock main body and the space between the faces is shortened.

  The invention according to claim 2 is a two-stop water stop cock in which a shaft mounting portion of the water stop mechanism and a part of the shaft mounting portion of the branch mechanism are integrated.

  The invention according to claim 3 is a two-stop water stop cock in which a retaining ring attached to the shaft mounting portion of the water stopping mechanism and a retaining ring attached to the shaft mounting portion of the branch mechanism are alternately arranged.

  The invention according to claim 4 is a two-stop water faucet in which an internal thread portion provided in the shaft mounting portion of the branch mechanism is disposed so as to face the pressure-resistant portion of the water faucet body.

  According to the first aspect of the present invention, the main water stop side and the branch side can be operated independently in the water supply, hot water supply, or water stop states by separately operating the water stop mechanism and the branch mechanism of the integrated stopcock body. Thus, it is possible to repair, maintain, and replace each device connected to the end side of the branch port without stopping the mainstream side. A branch mechanism is provided at a position adjacent to the shaft mounting part of the stop cock body, and the branch port of this branch mechanism is arranged in a direction crossing the flow path direction of the stop cock body to shorten the space between the surfaces. It is possible to provide a two-stop water faucet that is almost the same size as a conventional branch water stop cock and can be made compact with a small space while simplifying the above. Therefore, it is possible to effectively perform piping by using a limited narrow piping space in a cabinet such as a kitchen sink, and the piping work becomes easy. The piping structure after construction is simplified and at the same time miniaturized and the number of connection points is reduced, so the quality, function and aesthetics are improved. Since the water faucet body can be provided in a simplified shape, molding is also facilitated.

  According to the invention according to claim 2, the shaft mounting portion of the water stop mechanism and the shaft mounting portion of the branch mechanism are adjacent to each other in an integrated state, and the distance between the surfaces is limited while sharing the pressure-resistant portion of these shaft mounting portions. It is possible to make the whole compact while securing the strength.

  According to the invention which concerns on Claim 3, the shaft mounting part of a water stop mechanism and the shaft mounting part of a branch mechanism can be provided, securing a thickness by arrange | positioning a retaining ring alternately, These shaft mounting parts While maintaining the strength in the vicinity, the compactness is ensured, and even when it is provided in a narrow installation location, the mainstream side and the branch side can be brought into a water supply, hot water supply, or water stoppage state with high operability via each shaft mounting portion.

  According to the invention according to claim 4, it is possible to operate in any state of water supply, hot water supply or water stoppage through the shaft mounting portion while ensuring the strength in the vicinity of the inner screw portion of the shaft mounting portion and maintaining pressure resistance. The predetermined flow path state can be maintained while ensuring the sealing performance even after the operation.

It is a top view which shows one Embodiment of the double stopper type water stop cock in this invention. (A) is AA sectional drawing of the two-stop water-stopper of FIG. (B) is BB sectional drawing of (a). It is a front view which shows the body of FIG. It is a schematic front view which shows an example of piping which uses the double stopper type water stop cock of this invention. It is a schematic front view which shows the comparative example of piping. It is a schematic front view which shows the other comparative example of piping.

  Hereinafter, a preferred embodiment of a two-stop valve in the present invention will be described in detail with reference to the drawings. In FIG. 1, the top view of one Embodiment of the double stopper type water stop cock in this invention is shown, and the sectional view is shown in FIG.

  1 and 2 is used as a part of piping provided in a cabinet in a kitchen sink or under a bathroom vanity, for example. By interposing in the piping taken out from the underfloor piping, it is possible to branch from the main stream side to a plurality of terminal devices such as a mixing faucet, a water purifier, a dishwasher, and a disposer (not shown).

  The water stopcock main body 1 includes a body 3 having a flow path 2 therein, and includes a water stop mechanism 10 and a branch mechanism 11 capable of controlling the flow rate of the flow path 2 in a water supply (hot water supply) or water stop state. The water stop mechanism 10 and the branch mechanism 11 are respectively provided with shaft mounting portions 12 and 13, and the branch mechanism 11 is provided at a position adjacent to the shaft mounting portion 12 of the water stop mechanism 10. The branch mechanism 11 is provided on the primary side of the water stop mechanism 10, and the branch mechanism 15 is provided with branch ports 15 and 15 in a direction intersecting the flow path 2 direction. L can be shortened. In the present embodiment, the branch port 15 is branched to the left and right with respect to the flow path 2 so as to be orthogonal to the flow path 2. A cap 16 shown in FIG. 4 is detachably provided at each branch port 15, 15 so that each branch port 15 can be closed as necessary.

As shown in FIG. 2, valve seats 18 and 19 for the water stop mechanism 10 and the branch mechanism 11 are formed inside the stop cock main body 1, and these valve seats 18 and 19 are mutually in the height direction. The branching mechanism 11 is shifted and disposed above the flow path 2 and the water stop mechanism 10. For this reason, the water stop mechanism 10 is one step lower than the branch mechanism 11, but the flow path 2 is not extremely narrowed as shown in the figure, and the aperture through which the fluid flows reliably is secured.
The water stop mechanism 10 can control the flow rate on the main flow side of the stop cock main body 1, and the branch mechanism 11 can control the flow rate toward the branch port 15, and performs these flow rate control independently. It is possible. In FIG. 2, both the water stop mechanism 10 and the branch mechanism 11 are in a fully open state.

  As shown in FIGS. 1 to 3, the shaft mounting part 12 of the water stopping mechanism 10 and a part of the shaft mounting part 13 of the branching mechanism 11, that is, the shaft mounting parts 12, 13 adjacent to the water stopping mechanism 10 and the branching mechanism 11. Part of each other is integrated. Thereby, this pressure-resistant part 20 is shared in the overlapping part 20a where the cylindrical pressure-resistant parts 20 and 20 of the shaft mounting parts 12 and 13 overlap. The “pressure-resistant portion” refers to a region on the flow path side of at least the later-described O-ring 28 in each of the shaft mounting portions 12 and 13.

  Inner screw portions 22 and 23 that are female screws are provided in the shaft mounting portions 12 and 13 of the water stopping mechanism 10 and the branching mechanism 11, respectively, and the inner screw portion 23 in the shaft mounting portion 13 of the branching mechanism 11 is The water stopcock main body 1 is provided so as to be opposed to the pressure-resistant portion 20. Plug rods 25 and 25 are respectively screwed into the inner screw portions 22 and 23 via male screw portions 24. In FIG. 2, each of the plug rods 25 and 25 is connected to the male screw portions 24 and 24 and the inner screw portions. 22 and 23, the shaft mounting portions 12 and 13 can be moved in the vertical direction. A stopper gasket 26 is fixed to the tip of the stopper rod 25 with a stopper screw 26, and when the stopper rod 25 moves up and down, the stopper packing 27 contacts and separates from the valve seats 18 and 19 to open the flow path 2. Or it will be in a closed state.

Sealing O-rings 28 are mounted on the outer circumferences of the respective plug bars 25 and 25 to prevent water leakage from the shaft mounting parts 12 and 13. Annular grooves 29 and 30 are formed in the shaft mounting portions 12 and 13, and a C-shaped retaining ring 31 is detachably mounted on the annular grooves 29 and 30 from the top of the stopper rod 25. In this case, since the branching mechanism 11 is provided above the water stop mechanism 10 as described above, the retaining ring 31 attached to the shaft mounting part 12 of the water stop mechanism 10 and the shaft mounting part of the branch mechanism 11. The retaining rings 31 attached to 13 are alternately arranged in the axial direction of the shaft mounting portions 12 and 13. The retaining rings 31, 31 are engaged with the engaging surfaces 25 a of the stopper rods 25, and the stopper rods 25 are held in a retaining state.
A fitting groove 32 is formed on the upper side of each plug bar 25, and each plug bar 25 can be rotated by a tool such as a minus screwdriver (not shown) or a handle via the fitting groove 32.

  In the present embodiment, the inner screw portions 22 and 23 of the water stop mechanism 10 and the branch mechanism 11 have the same diameter and the same pitch, and the plug bar 25 has a common shape. As a result, one stopper rod 25 can be shared for the water stop mechanism 10 or the branch mechanism 11. In the body 3, the branch port 15 is arranged orthogonal to the main flow of the flow path 2, but may be arranged at an appropriate angle. Further, although the branch mechanism 11 is provided on the primary side of the body 3 and the water stop mechanism 10 is provided on the secondary side, the water stop mechanism 10 may be provided on the primary side and the branch mechanism 11 may be provided on the secondary side.

  Then, operation | movement of said stop cock main body 1 is demonstrated. In the fully open state (open state) of both the water stop mechanism 10 and the branch mechanism 11 in FIG. 2, when the fluid flows from the primary side, both the branch side branch port 15 and the main flow side flow path 2 are provided. The lever fluid flows. At this time, it is possible to adjust the flow rates on the branch side and the main stream side by vertically operating the respective plug bars 25 of the branch mechanism 11 and the water stop mechanism 10.

  When the stopper rod 25 of the water stop mechanism 10 is lowered from this state, the main flow side is closed and the flow to the main flow side is stopped, so that the fluid flows only to the branch side. At this time, the flow rate on the branch side can be adjusted by moving the plug rod 25 of the branch mechanism 11 up and down. This closing operation on the mainstream side is performed, for example, at the time of maintenance and replacement of the kitchen faucet.

When the stopper rod 25 of the branch mechanism 11 is lowered from both open states, the branch side is closed and the flow to the branch side is stopped, so that the fluid flows only to the main flow side. At this time, the flow rate on the main stream side can be adjusted by operating the stopper rod 25 of the water stop mechanism 10 up and down. This branching side closing operation is performed, for example, when installing, maintaining, or replacing a device that uses tap water such as a water purifier, a dishwasher, or a disposer.
When the stopper rods 25 of both the water stop mechanism 10 and the branch mechanism 11 are lowered, both the main flow side and the branch side are closed, so that the fluid does not flow to the main flow side and the branch side.

  As described above, the two-stop water stopcock of the present invention has the branch mechanism 11 integrally provided in the stop cock body 1 having the water stop mechanism 10, and therefore uses separate branch joints and branch stop cocks. Therefore, the piping construction using the water stopcock body 1 is easy without increasing the size and complexity as in the case of piping. In addition, the stop cock body 1 is provided with the shaft mounting portion 12, the branch mechanism 11 is provided at a position adjacent to the shaft mounting portion 12, and the branch port 15 of the branch mechanism 11 is connected to the flow path 2 direction of the stop cock main body 1. Since the inter-surface L is shortened by arranging in the intersecting direction, the entire branching mechanism 11 can be made compact using the adjacent space of the shaft mounting portion 12, and even when a plurality of branching ports 15 are provided, these It is possible to form the whole while keeping the branch port 15 within a predetermined range L between the faces, and to shorten the length in the direction of the flow path 2.

  At this time, the shaft mounting portion 12 of the water stop mechanism 10 and a part of the shaft mounting portion 13 of the branch mechanism 11 are integrated, so that the branch port 15 intersects the flow path 2 of the water stopcock main body 1. The branching mechanism 11 is adjacent to the water stop mechanism 10 while being disposed at the position, and the branch port 15 is disposed at a position shifted from the main flow side to the upper side in FIGS. With this structure, the diameter of the primary side of the water stop mechanism 10 is ensured regardless of whether the branch mechanism 11 is arranged adjacent to the primary side of the water stop mechanism 10, and either the main flow side or the branch side is secured. Or the function which flows the fluid of predetermined flow volume reliably to both is ensured. And since the branch port 15 is restrained in the height range of the water stop mechanism 10, the height of the water stopcock main body 1 does not increase.

  Since the pressure-resistant portion 20 is shared, the lengths of the shaft mounting portions 12 and 13 of the water stop mechanism 10 and the branch mechanism 11 in the direction of the flow path 2 can be shortened while ensuring strength. Since the branching mechanism 11 is disposed above the flow path 2 and the water stopping mechanism 10, and the retaining ring 31 of the water stopping mechanism 10 and the retaining ring 31 of the branching mechanism 11 are alternately disposed, they are shared. In addition, a certain thickness of the pressure-resistant portion 20 is ensured, and a decrease in strength of the shaft mounting portions 12 and 13 is suppressed.

At this time, the thickness of the overlapping portion 20a of the pressure-resistant portion 20 must be increased by an amount that is insufficient due to the locking groove in order to ensure the thickness necessary for the pressure resistance. In this case, if the retaining ring of the water stop mechanism and the retaining ring of the branch mechanism are located at substantially the same height, the thickness of that portion needs to increase corresponding to two locking grooves. Become.
On the other hand, as shown in FIG. 2 (a), in the two-stop water stopcock of the present invention, the locking groove 20b of the water stopping mechanism 10 and the locking groove 20c of the branch mechanism 11 are alternately arranged in the height direction. Since these two locking grooves 20b and 20c are provided, the increase in the necessary thickness at the same height can be suppressed to the insufficient thickness due to one locking groove. . For this reason, the thickness of the overlapping portion 20a only needs to be increased by a small thickness corresponding to one locking groove, and the distance between the surfaces can be minimized.
Furthermore, the predetermined thickness of the pressure | voltage resistant part 20 is ensured by arrange | positioning the internal thread part 23 of the branch mechanism 11 facing the pressure | voltage resistant part 20 of the water stopcock main body 1. FIG.

  Next, the case where it is provided in the cabinet 41 on the lower side of the kitchen sink 40 will be described as an example of the case where the stop cock main body 1 described above is piped. 4 shows a state in which the water faucet body 1 is piped in the cabinet 41, and in the comparative example in FIG. 5, a state in which piping is made using the branch joint 45 and the water faucet 46, FIG. In the comparative example, a state in which piping is performed using a conventional large-sized two-stop water faucet 47 is shown. 4-6, the range enclosed with a dashed-two dotted line fulfill | performs a mutually equivalent branch function and water stop function.

In each figure, in the cabinet 41 under the kitchen sink 40, a water supply pipe 51 and a hot water supply pipe 52 extend from a laying surface 50 such as a bed, respectively. It is connected to the mixed faucet 53.
In the water supply pipe 51, the branch side is branched from the main stream side, the main stream side is connected to the mixing faucet 53, and the branch side is connected to a device 54 such as a water purifier. In this example, one branch side is provided in any case, and the branch side not connected to the device 54 is closed by the cap 16.

  In FIG. 4, when the water faucet body 1 is used and the branch side is provided from the mainstream side, the space L can be reduced and the whole can be miniaturized, so that the piping space can be afforded. Furthermore, if a one-touch joint (not shown) is formed integrally with the water stopcock main body 1 for connection of the resin pipe 55 used as the pipe, the distance L between the faces can be further reduced and the pipe can be made more compact. Since the diverging port 15 is suppressed within the height range of the water stop mechanism 10, the dimension in the depth direction in FIG. 4 is reduced, and the space available inside the cabinet 41 is widened by the downsizing in the depth direction. It becomes possible to take.

  On the other hand, in the comparative example of FIG. 5, in addition to the inter-surface M being larger than the inter-surface L of FIG. 4, there are many connection points by using separate branch joints 45 and stopcocks 46. It becomes complicated piping. For this reason, the entire piping is enlarged, and the available space inside the cabinet 41 is reduced. Furthermore, since the work space at the time of piping becomes narrow, there is a risk of a connection error, and the risk of water leakage increases.

  On the other hand, even when the conventional two-stop water faucet 47 in another comparative example of FIG. 6 is used, the inter-surface N is larger than the inter-surface L of FIG. There is no change. For this reason, it is difficult to provide piping in a narrow space. In particular, when the laying surface 50 in the cabinet 41 is a platform, the piping state tends to be tight.

DESCRIPTION OF SYMBOLS 1 Stop cock main body 2 Flow path 10 Water stop mechanism 11 Branch mechanism 12, 13 Shaft part 15 Branch port 20 Pressure-resistant part 22, 23 Inner screw part 31 Retaining ring L Between surfaces

Claims (4)

  A shaft mounting portion is provided in a water faucet body having a water shut-off mechanism, a branch mechanism is provided at a position adjacent to the shaft mount portion, and a branch port of the branch mechanism intersects the flow direction of the water stop cock main body. A two-stop water stop valve with a reduced space between the two.   The two-stop type water stop cock according to claim 1, wherein a shaft mounting portion of the water stop mechanism and a part of the shaft mounting portion of the branch mechanism are integrated.   The two-stop water stop cock according to claim 1 or 2, wherein a retaining ring attached to the shaft mounting portion of the water stopping mechanism and a retaining ring attached to the shaft mounting portion of the branch mechanism are alternately arranged.   The two-stop water faucet according to any one of claims 1 to 3, wherein an internal thread portion provided in a shaft mounting portion of the branch mechanism is disposed so as to face the pressure-resistant portion of the water faucet body.

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