CN112012301A - Drainage pipe sleeve and toilet stool with same - Google Patents
Drainage pipe sleeve and toilet stool with same Download PDFInfo
- Publication number
- CN112012301A CN112012301A CN202010472944.4A CN202010472944A CN112012301A CN 112012301 A CN112012301 A CN 112012301A CN 202010472944 A CN202010472944 A CN 202010472944A CN 112012301 A CN112012301 A CN 112012301A
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- China
- Prior art keywords
- drain pipe
- toilet
- constricted
- drain
- center
- Prior art date
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/13—Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
- E03D11/16—Means for connecting the bowl to the floor, e.g. to a floor outlet
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/13—Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/18—Siphons
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sanitary Device For Flush Toilet (AREA)
Abstract
The invention provides a drain pipe sleeve, which can prevent paper from being clamped at the rear part of a necking part. This drain pipe cover possesses: the toilet bowl comprises a first connecting part (11) connected with a drainage pipe part of a toilet bowl (41), a second connecting part (12) connected with a drainage pipe (50) on the ground and the like, and a drainage passage main body part (13) connecting the first connecting part (11) and the second connecting part (12), wherein the drainage passage main body part (13) is provided with an inclined part (14) which faces to the lower side and inclines to one side in the front-back direction, a necking part (30) is arranged at the upstream end part of the drainage passage main body part (13), and a surface (37) which is positioned at the inclined part and inclines in the inclined part in the necking part (30) is provided with a part of which the horizontal direction distance (B1) between the surface and the center C of the first connecting part (11) is increased from the center in the left-right direction to the end side.
Description
Technical Field
The present disclosure relates to a drain cover (ソケット, socket) and a toilet stool equipped with the drain cover.
Background
Conventionally, a drain pipe cover is known which connects a drain pipe portion of a toilet stool to a drain pipe provided on the floor or the like. The drain pipe cover generally includes: the toilet includes a first connection portion connected to a drain pipe portion of the toilet, a second connection portion connected to a drain pipe provided on the floor or the like, and a drain passage main body portion connecting the first connection portion and the second connection portion. The drain pipe cover has an inclined portion inclined toward the downstream side and rearward. In a drain pipe cover having such an inclined portion, for example, patent document 1 listed below discloses a drain pipe cover in which a constricted portion is provided at an upstream end portion of a drain passage main body portion. The drain pipe cover causes clean water from a drain pipe portion of the toilet to collide with the constricted portion to increase siphon force.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2008-184745
Disclosure of Invention
Technical problem to be solved by the invention
However, in the above-described configuration, paper and the like flowing down with the flow of the cleaning water tend to be concentrated on the rear portion of the constricted portion. When paper or the like concentrated on the rear part of the constricted portion is caught there, jamming may occur, and therefore, improvement is desired.
The present disclosure has been made in view of the above circumstances, and an object thereof is to provide a drain cover that can prevent paper or the like from being caught by a constricted portion.
Technical solution for solving technical problem
The present disclosure provides a drain pipe cover, which includes: a first connection portion connected to a drain pipe portion of the toilet; a second connection portion connected to a drain pipe on the floor or the like; a drain passage main body portion that connects the first connection portion and the second connection portion; the drain passage body portion has an inclined portion that is inclined toward a lower side and toward one side in the front-rear direction, a constricted portion is provided at an upstream end portion of the drain passage body portion, and a surface of the constricted portion on the side where the inclined portion is inclined has a portion in which a horizontal direction distance from a center of the first connection portion in the left-right direction increases toward an end side in the left-right direction from a center in the left-right direction.
The present disclosure provides a toilet stool having a drain pipe cover, the toilet stool including: a drain pipe portion of the toilet and the drain pipe cover.
One side in the front-rear direction of the present disclosure is a direction on a horizontal plane when the inclination direction of the inclined portion is projected on the horizontal plane. The left-right direction of the present disclosure is a direction intersecting with respect to the front-rear direction of the present disclosure. The vertical direction of the present disclosure is a vertical direction in a state after the drain pipe cover is constructed (a state in which the second connection portion is connected to a drain pipe such as the ground).
Effects of the invention
According to the present disclosure, the surfaces of the constricted portion on the side where the inclined portion inclines are more extended outward at both ends in the right-left direction than when the surfaces are arc surfaces having a constant horizontal distance from the center of the first connection portion. Therefore, the paper or the like is less likely to be concentrated in the center in the left-right direction of the surface of the constricted portion on one side, and the paper or the like is likely to flow down because the flow path area is large. Therefore, paper or the like can be made difficult to jam in the constricted portion.
Drawings
Fig. 1 is a cross-sectional view showing a state in which a drain pipe portion of a toilet bowl and a drain pipe on the floor are connected to each other in a drain pipe cover according to a first embodiment.
Fig. 2 is a sectional view showing a drain pipe cover.
FIG. 3 is a plan view showing an upper member of a vertical pipe of the drain cover.
Fig. 4 is a view illustrating a flow of water in the drain cover.
Fig. 5 is a sectional view showing a drain pipe cover according to a second embodiment.
Fig. 6 is a partially enlarged plan view showing the drain pipe cover.
Description of the reference numerals
Center of C … first connection part
Distance in the horizontal direction between both ends in the left-right direction of B1 … and the center of the first connection part
A horizontal distance between the center of the left-right direction of B2 … and the center of the first connecting part
10. 70 … drainage pipe sleeve
11 … first connection part
12 … second connecting part
13 … drainage passage body part
14 … inclined part
22 … front surface of the inclined part (surface of the inclined part opposite to one side)
30 … necking part
31 … neckdown back (the part of the neckdown on one side)
33 … first step surface
34 … second step surface
37 … rear surface of the neck part (surface of the neck part on the side where the inclined part is inclined)
38 … inclined plane
40 … toilet drain pipe part (toilet drain pipe part)
41 … toilet bowl
44 … rear part of toilet drain pipe part (part of toilet drain pipe part on one side)
50 … drainage pipe
Detailed Description
Preferred embodiments of the present disclosure are described below.
In the drain pipe cover according to the present disclosure, a surface of the inclined portion opposite to the one side may be inclined such that a downstream side is closer to a vertical direction than an upstream side. According to this configuration, the cleaning water that collides with the portion of the constricted portion on one side and rebounds to the surface of the inclined portion on the side opposite to the one side is strongly drained by the inclination near the vertical on the downstream side of the surface of the inclined portion on the side opposite to the one side. Therefore, paper or the like can be made less likely to jam in the drainage passage main body.
In the drain pipe cover according to the present disclosure, an inclined surface inclined to the opposite side to the one side may be provided on a downstream side of the one surface of the constricted portion so as to face downward in the vertical direction. According to this configuration, the cleaning water colliding with the portion of the constricted portion on one side flows down along the inclined surface toward the surface of the inclined portion on the side opposite to the one side, and flows down vigorously along the surface of the inclined portion on the side opposite to the one side, and therefore, the siphon force can be increased.
In the drain pipe cover according to the present disclosure, a portion of the constricted portion on the one side may have a stepped surface extending in a direction intersecting with the vertical direction. According to this configuration, a large amount of cleaning water collides with the one side portion of the constricted portion, and a water film can be reliably formed, so that siphon can be reliably generated.
In the drain pipe cover according to the present disclosure, in a state where the first connection portion is connected to the drain pipe portion of the toilet bowl, the portion of the constricted portion located on the one side may be located closer to the one side than the portion of the drain pipe portion of the toilet bowl located on the one side. According to this configuration, the cleaning water that collides with the portion of the constricted portion on the one side flows to a lower position on the surface of the inclined portion on the side opposite to the one side, as compared to a case where the portion of the constricted portion on the one side is located on the side opposite to the one side with respect to the portion of the drain pipe portion of the toilet. Therefore, the cleaning water colliding with the one side portion of the constricted portion and the cleaning water flowing down from the drain pipe portion of the toilet bowl are merged at a lower position of the inclined portion, and therefore, the position of formation of the water film at which siphon is generated is lowered, and therefore, siphon force can be enhanced.
< example one >
Hereinafter, a first embodiment embodying the present disclosure will be described in detail with reference to fig. 1 to 4.
The drain pipe cover 10 of the present embodiment includes: a first connection portion 11 connected to a drain pipe portion (referred to as a toilet drain pipe portion 40) of a toilet 41, a second connection portion 12 connected to a drain pipe 50 on the floor, and a drain passage main body portion 13 connecting between the first connection portion 11 and the second connection portion 12.
Hereinafter, the directions of the persons seated in the toilet 41 in the normal posture will be referred to as reference directions, the left side of fig. 1 (the inclined direction of the inclined portion 14) will be referred to as the rear direction, the right side of fig. 1 will be referred to as the front direction, the upper side of fig. 1 will be referred to as the upper direction, and the lower side of fig. 1 will be referred to as the lower direction. The near side in the direction perpendicular to the paper surface of fig. 1 is referred to as the right side, and the depth side in the direction perpendicular to the paper surface of fig. 1 is referred to as the left side.
The toilet 41 includes: a toilet bowl portion 42, and a toilet drain passage 43 extending from the bottom of the toilet bowl portion 42 to the rear of the toilet 41. The toilet drain passage 43 extends obliquely upward from the bottom of the toilet bowl portion 42, extends downward, and opens downward in the vertical direction at the downstream end thereof. The downstream end of the toilet drain passage 43 forms the toilet drain pipe portion 40. The toilet drain pipe portion 40 has a cylindrical shape and protrudes downward in the vertical direction at the rear end of the toilet 41.
The drain pipe cover 10 includes: a hanging pipe 15 having a first connecting portion 11, an adjusting pipe 16 extending substantially horizontally from a lower end portion of the hanging pipe 15, and a connecting pipe 17 connected to a front end portion of the adjusting pipe 16. The connecting pipe 17 has a second connecting portion 12. The drainage pipe cover 10 can change the horizontal distance between the first connection portion 11 and the second connection portion 12 by cutting the adjustment pipe 16 by a predetermined length.
A bent portion 18 is provided at the lower end of the drop tube 15. The curved portion 18 is formed in an arc shape and curved. Water accumulates in the bend 18 and creates a siphon action.
The down pipe 15 is divided into two, an upper member 15U and a lower member 15S. The lower end of the upper member 15U is inserted into the upper end of the lower member 15S and bonded thereto with an adhesive. The adjustment pipe 16 is formed integrally with the lower member 15S. The bent portion 18 is formed in the lower member 15S.
The first connection portion 11 is formed in a cylindrical shape that opens to both the upper and lower sides. The toilet drain pipe portion 40 is inserted into the first connection portion 11 from above. A seal member (パッキン)60 is fitted to the outer peripheral surface of the first connection portion 11.
As shown in fig. 2, the seal 60 includes a seal body 61 fitted to the first connection portion 11, and a seal portion 62 protruding inward from an upper end of the seal body 61. The sealing portion 62 is formed in an annular shape and is closely attached to the entire periphery of the toilet drain pipe portion 40 (see fig. 1).
The second connection portion 12 is formed in a cylindrical shape and is opened in the vertical direction. The second connection portion 12 is continuous with the downstream end of the drain passage main body portion 13. The second connection portion 12 is inserted into the drain pipe 50.
The drain passage main body portion 13 is formed over the hanging pipe 15, the adjustment pipe 16, and the connection pipe 17. The drain passage main body portion 13 includes: the inclined portion 14, a bent portion 18 continuous with the downstream side of the inclined portion 14, a horizontal portion 19 continuous with the downstream side of the bent portion 18, and a vertical portion 21 continuous with the downstream side of the horizontal portion 19. The flow path area of the drain passage main body portion 13 is substantially constant in the inclined portion 14, the bent portion 18, the horizontal portion 19, and the vertical portion 21. That is, the inner diameter is substantially constant in the inclined portion 14 and the bent portion 18 of the hanging pipe 15, the adjusting pipe 16, and the connecting pipe 17.
The inclined portion 14 is formed in the upper member 15U of the drop tube 15. The inclined portion 14 is inclined with respect to the vertical direction. As shown in fig. 2, the inclined portion 14 is inclined downstream and rearward. The inclined portion 14 is displaced slightly rearward from the upper end toward the lower end.
As shown in fig. 2, the front surface (surface on the side opposite to the side) 22 of the inclined portion 14 is located on the side opposite to the neckdown portion rear portion 31. The downstream side 22S of the front surface 22 of the inclined portion 14 is inclined at a slope close to the vertical with respect to the upstream side 22U. As shown in fig. 2, the cross-sectional shape of the front surface 22 of the inclined portion 14 is curved in a bow shape bulging to the rear side. As shown in fig. 3, the lower end of the downstream side 22S of the front face 22 is formed linearly in the left-right direction when viewed from the upper side in the vertical direction.
A constricted portion 30 is provided at an upstream end portion of the drain passage main body portion 13. The constricted portion 30 has a first step surface 33 and a second step surface 34 that extend in a direction (substantially horizontal direction) intersecting the vertical direction. The second step surface 34 is located on the downstream side of the first step surface 33. As shown in fig. 3, the width dimension (the dimension in the inward-outward direction) of the second step surface 34 is smaller than the width dimension of the first step surface 33.
As shown in fig. 3, the first step surface 33 is formed in a ring shape over the entire circumference of the constricted portion 30. The first step surface 33 has: first side step surfaces 33S on both left and right sides of the constricted portion 30, a first front step surface 33F on a front side of the constricted portion 30, and a first rear step surface 33R on a rear side of the constricted portion 30. The width dimension (the dimension in the inward-outward direction) of the first back step surface 33R gradually decreases from the center in the lateral direction toward the end sides in the lateral direction.
As shown in fig. 3, the second step surface 34 has: second side step surfaces 34S on the left and right sides of the constricted portion 30, and second rear step surfaces 34R on the rear side of the constricted portion 30. The width dimension (the dimension in the inward-outward direction) of the second side stepped surface 34S is substantially equal to the width dimension (the dimension in the inward-outward direction) of the second back stepped surface 34R.
As shown in fig. 3, the circumferential surface of the constriction portion 30 has a pair of left and right side surfaces 35, a front surface 36, and a rear surface 37. The front face 36 connects the front end sides of the pair of left and right side faces 35. The rear face 37 connects the rear end sides of the pair of left and right side faces 35. The rear surface 37 of the constricted portion 30 is a surface of the constricted portion 30 on the side where the inclined portion 14 is inclined.
The pair of side surfaces 35 are substantially vertically suspended from inner edges of the pair of first side stepped surfaces 33S. As shown in fig. 3, the pair of side surfaces 35 are formed substantially in parallel and linearly extend in the front-rear direction when viewed from above. The front face 36 is substantially vertically suspended from the inner edge of the first front step face 33F. The front face 36 is curved in an arc shape with the center C of the first connecting portion 11 as the center when viewed from above. The rear surface 37 is substantially vertically suspended from the inner edge of the first rear step surface 33R. Hereinafter, the following 37 will be described in detail.
As shown in fig. 3, a portion of the neck part 30 on one side (referred to as a neck part rear part 31) has a first rear step surface 33R, a second rear step surface 34R, and a rear surface 37. The rear face 37 constitutes the peripheral surface of the neckdown rear portion 31. As shown in fig. 3, the rear surface 37 is curved in an arc shape having a larger radius than the front surface 36 when viewed from above. The horizontal distance B1 between the left and right ends 37R, 37L of the rear face 37 and the center C of the first connecting portion 11 is greater than the distance B2 between the left and right center and the center C of the first connecting portion 11. The distance in the horizontal direction between the constricted portion rear portion 31 and the center C of the first connecting portion 11 gradually increases from the center in the left-right direction to both ends 37R, 37L. The constricted portions 30 are bilaterally symmetrical with respect to the center C of the first connecting portion 11.
As shown in fig. 2, a tilted surface 38 that is tilted forward and faces downward in the vertical direction is provided on the downstream side of the constricted portion rear portion 31. The inclined surface 38 depends from an inner edge of the second rear step surface 34R (see fig. 3). The inclined surface 38 extends from the inner edge of the second rear step surface 34R to the upstream end of the inclined portion 14 of the drain passage main body portion 13. The inclined surface 38 is inclined toward the downstream side 22S of the front surface 22 of the inclined portion 14. In other words, as shown in fig. 2, the imaginary inclined surface 39 extending downward along the inclined surface 38 intersects the downstream side 22S of the front surface 22 of the inclined portion 14. The inclined surface 38 is more inclined than the front face 36 of the opposed necked portion 30.
As shown in fig. 3, the inclined surface 38 is curved in an arc shape substantially parallel to the rear surface 37 when viewed from above. That is, the horizontal distance between both ends of the inclined surface 38 in the left-right direction and the center C of the first connecting portion 11 is larger than the horizontal distance between the center in the left-right direction and the center C of the first connecting portion 11.
Next, an example of use of the drain cover 10 of the present embodiment will be described.
First, as shown in fig. 1, the toilet drain pipe portion 40 and the drain pipe 50 are connected by using the drain pipe cover 10. The second connection portion 12 of the drain pipe cover 10 is connected to the drain pipe 50, and the toilet drain pipe portion 40 is inserted into the first connection portion 11. The lower end of the toilet drain pipe portion 40 protrudes downward beyond the lower end of the seal portion 62 of the seal 60.
In a state where the first connection portion 11 is connected to the toilet drain pipe portion 40, as shown in fig. 1, the constricted portion rear portion 31 is located at a position further toward the rear side than a rear portion (portion located on one side) 44 of the toilet drain pipe portion 40. In other words, the horizontal distance between the constricted portion rear portion 31 and the front surface 22 of the inclined portion 14 is greater than the horizontal distance between the rear portion 44 of the toilet drain pipe portion 40 and the front surface 22 of the inclined portion 14.
As shown in fig. 4, the water discharged from the toilet drain pipe portion 40 collides with the neck-down rear portion 31 to form a water film W1 on the downstream side, and a siphon is generated early. The water colliding with the constricted portion rear portion 31 flows down the downstream side 22S by the inclined surface 38 as indicated by the arrow X. The clean water flowing down from the constricted portion rear portion 31 joins the clean water flowing down from the toilet drain pipe portion 40 as indicated by arrow Y at the downstream side 22S, and forms a water film W2. Thus, the water film forming position is low, and therefore, a strong siphon force is generated. The water flowing down to the downstream side 22S flows into the bending portion 18 along the nearly vertical inclination of the downstream side 22S as indicated by the arrow Z. Therefore, the water is strongly pulled down, and the siphon force becomes stronger.
Further, the paper and the like flowing down with the water flow are collected in the neck-down rear portion 31. Here, the constricted portion rear portion 31 expands more in the left-right direction than the arc surface, and therefore, it is difficult for paper or the like to concentrate on the center. Further, since the throat portion 30 has a larger flow path area than the case where the throat rear portion 31 is an arc surface, paper or the like flows down without being caught. Paper and the like are strongly sucked into the lower part together with water by strong siphon force and smoothly discharged.
Next, the operation and effect of the embodiment configured as described above will be described.
The drain pipe cover 10 of the present embodiment includes: a first connection portion 11 connected to the drain pipe portion of the toilet 41, a second connection portion 12 connected to the drain pipe 50 on the floor, and a drain passage body portion 13 connecting the first connection portion 11 and the second connection portion 12. The drain passage main body portion 13 has an inclined portion 14 inclined to the downstream side and the rear side. A constricted portion 30 is provided at an upstream end portion of the drain passage main body portion 13. The rear surface 37 of the constricted portion 30 has a shape in which the horizontal distance B1 between the left and right ends 37R, 37L and the center C of the first connection portion 11 is greater than the horizontal distance B2 between the center of the left and right direction and the center C of the first connection portion 11. According to this configuration, the rear surface 37 of the constricted portion 30 is formed to have both ends in the right-left direction spread outward as compared with a case of an arc surface having a constant horizontal distance from the center C of the first connecting portion 11. Therefore, the paper or the like is less likely to be concentrated at the center of the rear surface 37 of the constriction portion 30, and the flow path area is large, so that the paper or the like is likely to flow down. Therefore, paper or the like can be made less likely to jam in the neckdown portion rear portion 31.
The front surface 22 of the inclined portion 14 has a slope that is closer to the vertical on the downstream side than on the upstream side. According to this configuration, the cleaning water flowing down from the neck-reduced portion rear portion 31 to the front surface 22 of the inclined portion 14 is strongly drained by the inclination near the vertical on the downstream side of the front surface 22. Therefore, paper or the like can be made less likely to jam in the drainage passage main body 13.
Further, a tilted surface 38 that is tilted forward and faces downward in the vertical direction is provided on the downstream side of the rear surface 37 of the constricted portion 30. According to this configuration, the cleaning water colliding with the constricted portion rear portion 31 flows down the front surface 22 of the inclined portion 14 along the inclined surface 38, and flows down strongly along the front surface 22, so that the siphon force can be increased.
The neck-reduction rear portion 31 has a first step surface 33 and a second step surface 34 that expand in a direction intersecting the vertical direction. According to this structure, a large amount of cleaning water collides with the constricted portion rear portion 31, and therefore, the siphon force can be enhanced.
In a state where the first connection portion 11 is connected to the toilet drain pipe portion 40, the constricted portion rear portion 31 is located further to the rear side than the rear portion 44 of the toilet drain pipe portion 40. According to this configuration, the clean water bounced back from the constricted portion rear portion 31 is directed to a lower position of the inclined portion 14, as compared with a case where the constricted portion rear portion 31 is located on the front side of the rear portion 44 of the toilet drain pipe portion 40. Therefore, the cleaning water that collides with the constricted portion rear portion 31 and rebounds and the cleaning water that flows down from the toilet drain pipe portion 40 join at a lower position of the inclined portion 14, and therefore, the water film formation position at which siphon is generated is lowered, and therefore, siphon force can be enhanced.
< example two >
Next, a drain pipe cover 70 according to a second embodiment of the present disclosure will be described with reference to fig. 5 and 6.
The drain cover 70 of the present embodiment is different from the first embodiment mainly in the point where there is no adjustment portion. The same components as those in the first embodiment are denoted by the same reference numerals, and redundant description thereof is omitted.
The drain pipe cover 70 of the present embodiment is similar to the present embodiment, and includes: a first connection portion 11, a second connection portion 12, and a drain passage main body portion 13. The drain passage body 13 includes an inclined portion 14, and a constricted portion 30 is provided at an upstream end of the drain passage body 13. Hereinafter, each component will be described with the direction in which the inclined portion 14 is inclined downward (left side in fig. 5) being set to the rear, the opposite side (right side in fig. 5) being set to the front, the upper side in fig. 5 being set to the upper side, and the lower side in fig. 5 being set to the lower side, as in the example. The near side in the direction perpendicular to the paper surface of fig. 5 is referred to as the right side, and the depth side in the direction perpendicular to the paper surface of fig. 5 is referred to as the left side.
The vertical portion 21 of the drain passage main body portion 13 is continuous with the downstream side of the inclined portion 14. The front surface 22 of the inclined portion 14 is similar to the embodiment in that the downstream side 22S is inclined at a slope closer to the vertical than the upstream side 22U.
The constricted portion 30 includes a first step surface 33 and a second step surface 34 extending in a direction (substantially horizontal direction) intersecting the vertical direction, as in the example.
The first step surface 33 is formed in a ring shape formed over the entire circumference of the constricted portion 30, and includes: a first side step surface 33S, a first front step surface 33F, and a first rear step surface 33R. The width dimension (the dimension in the inward-outward direction) of the first front step surface 33F is substantially equal to the width dimension (the dimension in the inward-outward direction) of the first rear step surface 33R.
The second step surface 34 has: second side step surfaces 34S located on both left and right sides of the constricted portion 30, and a second front step surface 71 located on the front side of the constricted portion 30. The width dimension (the dimension in the inward-outward direction) of the second side stepped surface 34S is substantially equal to the width dimension (the dimension in the inward-outward direction) of the second front stepped surface 71.
The constriction 30 has a peripheral surface having a pair of left and right side surfaces 35, a front surface 36, and a rear surface 37, as in the embodiment.
The neck-finish portion 31 has a first rear step surface 33R and a rear surface 37. The rear surface 37 is curved in an arc shape having a radius larger than that of the front surface 36 when viewed from above, as in the embodiment.
On the downstream side of the constricted portion rear portion 31, as in the embodiment, an inclined surface 38 inclined downward in the vertical direction and forward is provided. An inclined surface 38 depends from the lower end of the rear face 37. The inclined surface 38 is inclined toward the downstream side 22S of the front surface 22 of the inclined portion 14, as in the example.
The inclined surface 38 is configured in such a shape that the distance in the horizontal direction between both ends in the left-right direction and the center C of the first connecting portion 11 is larger than the distance in the horizontal direction between the center in the left-right direction and the center C of the first connecting portion 11, as in the embodiment. The inclined surface 38 is formed in a gentle arc shape and curved as compared with the rear surface 37 when viewed from above. That is, the radius of the inclined surface 38 is larger than the radius of the rear surface 37.
As described above, in the present embodiment, as in the present embodiment, both end portions in the left-right direction of the neckdown portion rear portion 31 are spread outward, and therefore, it is difficult for paper or the like to concentrate at the center of the neckdown portion rear portion 31, and the flow path area is large, and therefore, paper or the like easily flows down. Therefore, paper or the like can be made less likely to jam in the rear portion of the constricted portion 30.
Further, as in the embodiment, an inclined surface 38 inclined downward in the vertical direction and forward is provided on the downstream side of the constricted portion rear portion 31. Accordingly, the cleaning water colliding with the constricted portion rear portion 31 flows down the front surface 22 of the inclined portion 14 along the inclined surface 38, and flows down strongly along the front surface 22, so that the siphon force can be increased.
The neck-reduced rear portion 31 has a first stepped surface 33 that expands in a direction intersecting the vertical direction. According to this structure, a large amount of cleaning water collides with the constricted portion rear portion 31, and therefore, the siphon force can be enhanced.
< Another embodiment >
The present disclosure is not limited to the embodiments described above and illustrated in the drawings, and for example, the following embodiments are also included in the technical scope of the present disclosure.
(1) In the above embodiment, the case where the present disclosure is applied to the drain pipe cover 10, 70 connected to the drain pipe 50 installed on the floor surface has been described, but the present disclosure can also be applied to a drain pipe cover for wall drainage connected to a drain pipe installed on a wall surface that is erected substantially perpendicularly to the floor surface.
(2) In the above embodiment, the constricted portion 30 has the first step surface 33 and the second step surface 34, but the constricted portion is not limited to this, and may have a tapered surface that reduces the flow passage area toward the downstream side instead of the step surface. The constricted portion may have 3 or more stepped surfaces.
(3) In the above embodiment, the front face 22 of the inclined portion 14 has a slope that is closer to the vertical on the downstream side than on the upstream side, but the slope of the front face of the inclined portion may not necessarily be provided as such.
(4) In the above embodiment, the inclined surface 38 is provided on the downstream side of the constricted portion rear portion 31, but the inclined surface may not necessarily be provided.
(5) In the above embodiment, the pair of side surfaces 35 are formed to be substantially parallel to each other and extend linearly in the front-rear direction, but the present invention is not limited thereto, and the pair of side surfaces may be gently curved, for example.
(6) In the above embodiment, the rear surface 37 is formed in the circular arc shape, but the rear surface is not limited thereto, and may have a portion where the horizontal distance from the center of the first connecting portion increases from the center in the left-right direction toward the end side, that is, such a portion may be formed at least in a part of the rear surface.
(7) In the above embodiment, the case where the inclined portion 14 of the drain pipe cover 10(70) is inclined downward and toward the rear side of the toilet 41 has been described, but the present invention is not limited thereto, and the inclined portion of the drain pipe cover may be inclined downward and in any direction in the horizontal direction, and for example, the inclined portion of the drain pipe cover may be inclined downward and toward the front side of the toilet, the left side of the toilet, or the right side of the toilet.
Claims (6)
1. A drain pipe cover is provided with:
a first connection portion connected to a drain pipe portion of the toilet;
a second connection portion connected to a drain pipe on the floor or the like;
a drain passage main body portion that connects the first connection portion and the second connection portion;
the drain passage body portion has an inclined portion inclined toward a lower side and toward one side in a front-rear direction,
a constricted portion is provided at an upstream end portion of the drain passage main body portion,
the surface of the constricted portion on the side on which the inclined portion is inclined has a portion in which the horizontal distance from the center of the first connection portion increases from the center in the left-right direction to the end side in the left-right direction.
2. The drain cover according to claim 1,
the surface of the inclined portion on the side opposite to the one side is inclined such that the downstream side is closer to the vertical than the upstream side.
3. The drainage pipe sleeve according to claim 1 or 2,
an inclined surface inclined to the opposite side to the one side is provided on the downstream side of the surface of the constricted portion in the vertical direction.
4. The drainage pipe sleeve according to any one of claims 1 to 3,
the portion of the constricted portion on the one side has a step surface that expands in a direction intersecting the vertical direction.
5. The drainage pipe sleeve according to any one of claims 1 to 4,
in a state where the first connection portion is connected to the drain pipe portion of the toilet,
the portion of the constricted portion on the one side is located closer to the one side than the portion of the drain pipe portion of the toilet stool on the one side.
6. A toilet stool provided with a drain pipe cover, the toilet stool being provided with:
a drain pipe portion of the toilet;
the drain cover according to any one of claims 1 to 5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-102195 | 2019-05-31 | ||
| JP2019102195A JP7247025B2 (en) | 2019-05-31 | 2019-05-31 | Toilet bowl with drain socket and drain socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112012301A true CN112012301A (en) | 2020-12-01 |
Family
ID=73507108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010472944.4A Pending CN112012301A (en) | 2019-05-31 | 2020-05-29 | Drainage pipe sleeve and toilet stool with same |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20200378103A1 (en) |
| JP (1) | JP7247025B2 (en) |
| CN (1) | CN112012301A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112166219B (en) | 2019-03-21 | 2022-04-29 | 杨百翰大学 | Vacuum assisted toilet system and method of using same |
| CN111989444A (en) * | 2019-03-21 | 2020-11-24 | 杨百翰大学 | Noise reduction tube, vacuum assisted toilet system including noise reduction tube, and method of using noise reduction tube |
| WO2020190300A1 (en) | 2019-03-21 | 2020-09-24 | Brigham Young University | Vacuum-assisted toilet systems and methods of using the same |
| JP2021169724A (en) * | 2020-04-16 | 2021-10-28 | 株式会社Lixil | Mobile toilet |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000282553A (en) * | 1999-03-30 | 2000-10-10 | Toto Ltd | Siphon type closet bowl |
| JP5624337B2 (en) * | 2010-02-25 | 2014-11-12 | 株式会社Ｌｉｘｉｌ | Drainage coupler |
| JP6353392B2 (en) * | 2015-03-31 | 2018-07-04 | 株式会社Ｌｉｘｉｌ | Drain socket support |
| JP7187885B2 (en) * | 2017-09-08 | 2022-12-13 | Toto株式会社 | drain socket |
-
2019
- 2019-05-31 JP JP2019102195A patent/JP7247025B2/en active Active
-
2020
- 2020-05-29 US US16/888,486 patent/US20200378103A1/en not_active Abandoned
- 2020-05-29 CN CN202010472944.4A patent/CN112012301A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020197010A (en) | 2020-12-10 |
| US20200378103A1 (en) | 2020-12-03 |
| JP7247025B2 (en) | 2023-03-28 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201201 |
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| WD01 | Invention patent application deemed withdrawn after publication |