JP2014070383A - Water supply pipe structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water supply pipe structure capable of discharging filth in a toilet bowl even when the quantity of washing water is small.SOLUTION: A water supply pipe structure for a closet bowl is characterized as follows: a water supply pipe for supplying water in a low tank to the closet bowl is installed between a drainage part of an undersurface of the low tank and a water supply part of the closet bowl; at least a round pipe part is included; and a diameter of the round pipe part is gradually reduced toward the side of the closet bowl from the side of the low tank in a cross-sectional view in a perpendicular direction.

Description

  The present invention relates to the supply of wash water to a Western-style toilet, and more particularly to a water supply pipe connected between a tank and a toilet.

  In the case of supplying cleaning water from a conventional tank to a Western-style toilet, as an example of a water supply pipe excellent in manufacturability and economy, a large-diameter mounting port at the end of the water outlet on the tank side and a water discharge nozzle at the rear of the ball surface It is disclosed that the water supply pipe is a flexible water guide pipe over the small-diameter mounting opening. (For example, refer to Patent Document 1).

In addition, it is disclosed that a flexible washing pipe is used to prevent water leakage from occurring in the piping portion between the low tank and the toilet bowl even when the wall-hanging toilet bowl is loaded over time. (For example, see Patent Document 2)
As described above, regarding the technology related to the water supply pipe, many disclosures of technologies relating to manufacturability, economy, and water leakage prevention have been seen.

JP-A 61-261539 Japanese Utility Model Publication No. 03-29574

  On the other hand, in recent years, in consideration of the environment, attempts have been made to discharge the filth in the toilet bowl by reducing the amount of washing water. To that end, simply reducing the amount of water in the tank will not allow the sewage in the toilet bowl to be discharged, and the tank must be raised in order to gain momentum in the water flow. However, when the position of the tank is increased, the height of the cabinet portion that accommodates the tank also increases, which affects the usability of the hand-washing device located above the cabinet.

  In addition, there is a contradictory effect that the toilet space to which the product is attached is restricted, the design becomes a feeling of pressure, or the flow rate of the cleaning water into the toilet becomes faster and the cleaning time is reduced. There was a problem.

  The present invention has been made to solve the above problems, and the problem of the present invention is that when cleaning water is supplied from a tank to a toilet through a water supply pipe, even if the amount of cleaning water is small, An object of the present invention is to provide a water supply pipe structure capable of suitably discharging filth.

  In order to achieve the above object, according to the first aspect of the present invention, in the water supply pipe for supplying the water of the low tank to the toilet, the water supply pipe is installed between the drainage part on the lower surface of the low tank and the water supply part of the toilet. And a water supply pipe structure for a toilet, characterized in that it includes at least an R-shaped pipe part, and the R pipe part has a gradually reduced diameter from the low tank side to the toilet side in a vertical sectional view. . As a result, even with a small amount of water, the water force can be maintained and sewage in the toilet can be washed away.

  Moreover, according to the preferable aspect of this invention, the water supply pipe structure characterized by making the center point of R inside the inner surface of the said R pipe part different from the center point of R of the inner surface outer side can be provided. Thereby, an internal diameter can be gradually made small from the low tank side to the toilet bowl side, and a water flow can be smoothly introduced into the toilet bowl without dropping water.

  Moreover, according to the preferable aspect of this invention, the water supply pipe | tube structure which makes R inside 20 mm or more and 25 mm or less of the inner surface of the said R pipe part can be provided. Thereby, the direction of the water flow can be changed while suppressing the bending pressure loss inside the water supply pipe, and the water flow can be maintained.

  Moreover, according to the preferable aspect of this invention, the height of the toilet water supply part center from the lower surface of the drainage part of the said low tank was 40 mm to 70 mm, The water supply pipe structure characterized by the above-mentioned can be provided. Thereby, the convenience of the hand-washer provided in the upper part of the low tank is improved while maintaining the water flow rate of the water supply to the toilet.

  According to the present invention, there is an effect that sewage in a toilet can be made to flow even with a small amount of water.

It is a model perspective view which shows the embodiment of this invention. It is a schematic cross section which shows the embodiment of this invention. It is a schematic cross section which shows the embodiment of this invention. It is a schematic cross section which shows the embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 4.
FIG. 1 is a schematic diagram showing the installation status of a gantry, a toilet bowl, and a low tank installed in a toilet room. As shown in FIG. 1, the toilet 1 and the low tank 3 are attached to a gantry 4 fixed to a toilet wall or floor. The gantry 4 is composed of two support frames 41 with a low height on the front side, and two fixed frames 42 with a high height on the wall surface side. The upper end of the support frame and the middle of the fixed frame are fixed by a connecting frame 43 in the horizontal direction. Further, two sets of the support frame, the fixed frame, and the connection frame are fixed by a plurality of horizontal frames 44 at intervals similar to the horizontal width of the toilet bowl.

  FIG. 2 is a schematic cross-sectional view of FIG. 1 viewed from the side. As shown in FIG. 2, the rear end of the toilet 1 is attached to the front surface of the support frame 41 of the gantry 4, and the low tank 3 is installed above the connection frame 43 of the gantry 4.

  FIG. 3 is a partial cross-sectional view illustrating a connection state between a water supply pipe and a low tank or a toilet as viewed from the side. FIG. 4 is a partial cross-sectional view showing a connection state between the lower portion of the low tank and the pedestal as viewed from the front. As shown in FIG. 3 and FIG. 4, the low tank 3 has a bolt 9 provided on the low tank 3 attached to the low tank fixing member 7 installed so that the installation position can be changed above the connecting frame 43 of the gantry 4. 7, the nut 10 is fastened and fixed.

  As shown in FIGS. 2 and 3, a flush water supply unit 11 is provided on the back surface of the toilet 1, and a stored water drainage unit 31 is provided below the low tank 3. The drainage unit 31 is positioned higher than the water supply unit 11, and the water supply unit 11 and the drainage unit 31 are connected by the water supply pipe 2.

  Here, the structure and attachment of the water supply pipe 2 will be described in more detail with reference to FIG. The water supply pipe 2 is provided at the end of the row tank so that the plane for crushing the packing 8 that stops the connection with the row tank 3 is kept at a distance from the row tank 3 in consideration of the crushing allowance of the packing. Moreover, the cylindrical part inserted in the spud 5 is provided in the toilet bowl side, and water is stopped by the spud 5 and packing on the outer surface.

  Further, the water stop at the connecting portion between the low tank 3 and the water supply pipe 2 is set up such that the water supply pipe 2 is sandwiched between the low tank fixing member 7 and the low tank 3, and the packing 8 attached to the drainage section 31 of the low tank 3 is Water is stopped by being pinched and crushed in the water supply pipe 2.

  The toilet 1 and the water supply pipe 2 are connected by a spud 5 and a cap nut 6. The water supply pipe 2 is inserted into the spud 5 installed in the toilet 1 and the packing is crushed with a cap nut and connected while water is stopped. Thereby, even if the positional relationship between the low tank 3 and the toilet 1 slightly varies due to factors such as component tolerances and construction errors, a water stop connection is possible.

  When the height of the low tank is increased, the flow rate of the washing water into the toilet increases, and there is a performance item that improves the washing performance. However, if the height is increased, the height of the cabinet covering the low tank is increased, and the height of the handwasher on the low tank or the cabinet is increased.

  For this reason, the height of the center of the toilet water supply section from the lower surface of the low tank drainage section where the low tank position can be set as high as possible while maintaining the ease of use of the hand-washer was set to 40 mm to 70 mm. If it is lower than 40 mm, the inner R is small due to the structure of the water supply pipe, and the cleaning performance is deteriorated. On the other hand, if the flow rate is too high, the inflow rate into the toilet increases, and the cleaning time tends to be shortened, and the cleaning performance tends to decrease.

  The detailed shape of the water supply pipe 2 will be described. A portion in which the washing water discharged from the vertical drainage portion 31 flows in the horizontal direction is defined as an R-shaped R pipe portion 21. And the part connected from the R pipe part 21 to the water supply part 11 was made into the straight pipe part 22. FIG.

  A part of the straight pipe part 22 can be inserted into the water supply part 11 side of the R pipe part 21. The inner diameter of the R pipe portion 21 is set to be larger than the inner diameter of the water supply portion 11 side, and the inner diameter is gradually reduced toward the downstream side. Specifically, the inner diameter on the drainage section 31 side was about 50 mm, and the inner diameter on the water supply section 11 side was about 36 mm.

  Further, the inner radius R of the inner surface of the R pipe portion 21 is set to 20 mm or more and 25 mm or less, the outer surface of the inner surface is set to 56 mm or more and 70 mm or less, Was gradually reduced. As a result, the water discharged from the low tank was maintained, and the waste from the toilet became easier to discharge.

  On the other hand, when the inner surface inner side R was made smaller than 20 mm for comparison, the cleaning performance was somewhat inferior. In particular, in a test using an L-shaped uniform water supply pipe having an inner diameter of 36 mm, the cleaning performance was inferior.

  The water supply pipe 2 can be composed of a plurality of resin molded products or resin molded products and metal tubes. When the water supply pipe is formed by resin molding, a vinyl chloride resin is used as a resin material. Further, by using a resin molded product, it is possible to keep the configuration height for bending the flow path from the vertical direction to the horizontal direction low. Moreover, it becomes easy to make a both ends into a different diameter by setting it as a resin molded product on manufacture.

  ADVANTAGE OF THE INVENTION According to this invention, even if it reduces the amount of water supply washing | cleaning, the water supply pipe | tube structure to the Western style toilet bowl suitable for discharging | emitting the waste of toilet bowl can be provided.

DESCRIPTION OF SYMBOLS 1 ... Toilet bowl, 11 ... Toilet bowl water supply part 2 ... Water supply pipe, 21 ... R pipe part, 22 ... Straight pipe part 3 ... Low tank, 31 ... Tank drainage part 4 ... Mount, 41 ... Support frame, 42 ... Fixed frame, 43 ... Linked frame, horizontal frame 5 ... Spud
6 ... Water supply pipe
7 ... Low tank fixing base
8 ... Low tank packing 9 ... Tank fixing bolt
10 ... Tank fixing nut

Claims (4)

  In a water supply pipe for supplying water from a low tank to a toilet, the water supply pipe is installed between a drainage part on a lower surface of the low tank and a water supply part of the toilet, and includes at least an R-shaped pipe part, and the R pipe part is vertical. A water supply pipe structure to a toilet, characterized in that the diameter is gradually reduced from the low tank side to the toilet side in a sectional view in the direction.   2. The water supply pipe structure for a toilet according to claim 1, wherein a center point of R inside the inner surface of the R pipe portion is made different from a center point of R outside the inner surface.   The water supply pipe structure for a toilet according to claim 2, wherein R on the inner surface of the R pipe part is 20 mm or more and 25 mm or less.   4. The water supply pipe structure for a toilet according to claim 1, wherein the height of the center of the toilet water supply part from the lower surface of the drainage part of the low tank is 40 mm to 70 mm.

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