Siphon pipeline

Abstract

The invention relates to a siphon pipeline which comprises an ascending section, a descending section and a pollution discharge section, and the connecting point of the ascending section and the descending section is a bent top of the siphon pipeline; the sewage discharging section comprises a vertical pipe section, the descending section is connected with the vertical pipe section through a connecting bend, the end of the ascending section is connected with the sewage discharging cavity, a port of the ascending section is arranged to be a first section, and the shape of the first section is formed by outwards expanding and deforming in the two-half-half direction, the four-half-half direction, the seven-half-half direction and the ten-half-half direction based on a reference ellipse; the long axis of the reference ellipse points to the left-right direction of the pipeline, and the short axis points to the up-down direction of the pipeline; the bending top position is set as a second cross section, and the shape of the second cross section is formed based on equal-proportion reduction of the reference ellipse and further shortening and deformation of a short axis; the connecting bend is provided with a third section which is further reduced based on the second section, and the bottom wall of the descending section is perpendicular to the side wall of the vertical pipe section. The water-saving siphon is water-saving, long in siphon time and larger in pulling force on dirt.

Description

Technical Field

[0001] The invention belongs to the technical field of toilet sewage discharge, and in particular relates to a siphon pipe. Background Art

[0002] Siphonic toilets are very common in the prior art. The sewage pipe of the siphonic toilet can form a siphon phenomenon, thereby dragging out the dirt in the pot body, and has the characteristics of strong sewage discharge capacity and large cleaning surface. The principle of the siphon pipe is mainly realized by utilizing the gravitational force and potential energy difference between liquid molecules. Water is quickly injected into the toilet, so that the water level in the toilet rises rapidly. When the water level is higher than the top of the sewage pipe, due to the S-shaped pipe, the water is transferred from the top of the pipe to the descending section, and then it is accelerated to descend under the action of gravity, forming a vacuum-like state at the top bend of the pipe, thereby pulling the water and dirt behind the top bend to continue to move, resulting in a siphon phenomenon. The water and dirt in the pot body will continue to flow down along the S-shaped pipe and be discharged.

[0003] The diameter of the siphon pipe directly determines the volume that can be used for solid waste to pass through. The height of the curved top and the curvature of the curved pipe have a corresponding impact on the siphon effect. The conditions for the toilet to siphon are: first, water must be injected quickly, and the water should enter the pipe through the entire cross section to discharge the air in the siphon pipe, thereby creating a vacuum environment; second, the water should pass over the curved top and a certain amount of water should be stored in the descending section after the curved top, so that the pulling force generated by the vacuum on the back side is greater when the water descends.

[0004] The main research directions for siphon toilets in the prior art are: 1. Design a structure that is more conducive to solid waste entering and passing through the siphon-type sewage pipe. For example, my country's patent number is ZL202410315630.8, the application date is July 3, 2024, and the authorization announcement number is CN104047350B. A toilet is disclosed, in which a step is provided at one end of the washing surface connected to the sewage inlet. The step can increase the bottom area of ​​the pot, so that solid waste can be more dispersed after falling in, and will not be squeezed or accumulated to form a blockage at the sewage inlet.

[0005] 2. Design a more reasonable siphon pipe bend to make the siphon toilet more water-saving. For example, my country's patent number is ZL202020101790.3, the application date is January 16, 2020, and the authorization announcement number is: CN212104420U. A siphon bend that is bent backward and tilted backward is set, and a pit is set on the bottom wall of the rear pipe section. After each flushing, the accumulated water in the pit blocks the water flow to this position in the early stage of flushing, so that the water flow fills the pipe faster, that is, the time of siphoning can be advanced.

[0006] There is no detailed study on the running state of water in the pipe cavity in the prior art, and there is no scheme for designing the pipe according to the state and function of water in each pipe path of the pipe. Therefore, the applicant believes that there is still much room for improvement in the pipe type of siphon pipes. Summary of the invention

[0007] The object of the present invention is to provide a siphon toilet pipe which has good flushing effect and saves water.

[0008] The present invention solves the above-mentioned problem by adopting the following technical solution: A siphon pipe comprises an ascending section, a descending section and a sewage discharge section, wherein the connection point between the ascending section and the descending section is the bend top of the siphon pipe; the sewage discharge section comprises a vertical pipe section, the descending section is connected to the vertical pipe section via a connecting bend, the end of the ascending section is connected to a sewage discharge chamber, the ascending section port is arranged as a first section, the shape of the first section is based on a reference ellipse, and the two and a half o'clock direction, the four and a half o'clock direction, the seven and a half o'clock direction and the ten and a half o'clock direction are all expanded and deformed outward; the major axis of the reference ellipse points to the left and right direction of the pipe, and the minor axis points to the up and down direction of the pipe; the bend top position is arranged as a second section, and the shape of the second section is based on the major axis of the reference ellipse being shortened by 2mm-8mm; the minor axis being shortened by 4mm-10mm; a third section is arranged on the connecting bend, and the third section is further reduced based on the second section, and the bottom wall of the descending section approaches the horizontal.

[0009] Compared with the prior art, the present invention adopting the above structure has the following beneficial effects: The present invention utilizes a first section with a larger cross-section to make solid waste enter the pipeline more conveniently; utilizes a low and flat shape of a second section to reduce the air at the top of the bend and ensure vacuum, thereby making the suction of the siphon pipeline stronger; and utilizes a smaller pipe diameter of the second section to make the siphon time longer; utilizes a third section to slow down the exit speed of the down pipe, thereby advancing the siphon occurrence time and achieving a water-saving effect; and at the same time, the water-blocking effect of the connecting bend enables the down pipe to accumulate more water, and when it is discharged at one time under the action of gravity, the vacuum degree on the upper side is better and the pulling force on the waste is greater.

[0010] As a preferred embodiment, a further technical solution of the above structure is: The displacement distance of each outward expansion point of the first cross section is 2 mm to 15 mm.

[0011] The beneficial effects obtained by the above features are as follows: since solid waste moves upward after entering the pipeline, in this example, the upper side of the pipeline is designed to have a slightly increased width to meet the requirements of waste passage, and the pipeline is slightly modified and deformed, which facilitates production.

[0012] The short axis of the second section is shortened, and the upper and lower ends are shortened synchronously or only the upper end is shortened downward.

[0013] The beneficial effects obtained by the above features are as follows: the second cross section has a large lateral width and a small upper and lower width, and in particular a low apex height, which does not affect the passage of solid dirt, but reduces the air accommodation space of the curved top, making it easy to discharge and drain the air in the siphon pipe.

[0014] The cross section in the middle of the descending section is formed by expanding and deforming the second cross section outward.

[0015] Beneficial effects obtained by the above features: This example allows the solid dirt squeezed through the second section to be released, stirred and dispersed by the water flow inside, and is easier to discharge.

[0016] The third section is arranged at the lower end of the connecting bend, and the diameter of the third section is equal to that of the vertical pipe section.

[0017] Beneficial effects obtained by the above features: This example ensures the docking of the connecting bend and the vertical pipe section, plays a water-blocking role, increases the residence time of water in the descending section, and allows the air in the descending section to be fully discharged.

[0018] The sewage discharge section also includes a horizontal pipe section, one end of which is connected to the lower end of the vertical pipe section, and the other end of which is bent downward and connected to the building sewage outlet.

[0019] The beneficial effects obtained by the above-mentioned features are as follows: increasing the horizontal pipe section can prolong the siphoning time, so that the dirt can be discharged continuously, thereby achieving the purpose of saving water. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall pipeline shape of the present invention; Figure 2 is a side view of the pipeline of the present invention; Figure 3 is a first cross-sectional schematic diagram of the present invention; Figure 4 is a second cross-sectional schematic diagram of the present invention; Figure 5 is a third cross-sectional schematic diagram of the present invention; Figure 6 It is a schematic diagram of the cross-sectional shape of the line AA in the middle of the descending section of the present invention; Figure 7 This is a functional diagram of the lower curved structure of the descending section of the present invention; In the figure: 1, first section; 2, ascending section; 3, curved top; 4, second section; 5, descending section; 501, bottom wall; 6, connecting bend; 7, third section; 8, vertical pipe section; 9, horizontal pipe section; 10, reference ellipse. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0022] It should be noted in advance that for the convenience of description, this description uses the hourly direction to locate the points on the pipe wall. The hourly direction positioning uses the top point of the pipe wall as the 12 o'clock direction and the bottom point of the pipe wall as the 6 o'clock direction.

[0023] See also Figures 1 to 6 The present invention provides a siphon pipe, comprising an ascending section 2, a descending section 5 and a sewage discharge section, wherein the connection point between the ascending section 2 and the descending section 5 is a curved top 3 of the siphon pipe; the sewage discharge section comprises a vertical pipe section 8, the descending section 5 is connected to the vertical pipe section 8 through a connecting bend 6, the end of the ascending section 2 is connected to the sewage discharge chamber, the port of the ascending section 2 is set as a first section 1, the shape of the first section 1 is based on a reference ellipse 10, and its two and a half o'clock direction, four and a half o'clock direction, seven and a half o'clock direction and ten and a half o'clock direction are all expanded and deformed outward; the major axis R1 of the reference ellipse 10 points to the left and right direction of the pipe, and the minor axis R2 points to the up and down direction of the pipe; the position of the curved top 3 is set as a second section 4, and the shape of the second section 4 is shortened and deformed based on the major axis R3 and the minor axis R4 of the reference ellipse 10; a third section 7 is provided on the connecting bend 6, and the third section 7 is further reduced based on the second section 4, and the bottom wall 501 of the descending section 5 approaches the horizontal.

[0024] In order to increase the amount of solid waste that can enter the pipe opening, it is conventional to directly increase the pipe diameter based on the original pipe type. However, directly increasing the diameter of the sewage pipe will easily make it difficult for the pipe to be filled with water, resulting in a weakening of the siphon force, or even failure to siphon the product. Therefore, this solution only makes fine adjustments to the pipe formation, specifically: 4mm outward expansion at 4:30 and 7:30, and 10mm outward expansion at 2:30 and 10:30. Since solid waste moves upward after entering the pipe, the design of large expansion at the top and small expansion at the bottom is in line with the actual situation of waste passing through, and the pipe can be modified and deformed to facilitate production. The current outward expansion of the four points is not limited to the above number, and can be between 2mm and 15mm. It is preferred to follow the deformation rule of large at the top and small at the bottom. Waste enters the pipe from the pipe ( Figure 2 As shown in the figure, the pipe area is larger than the conventional circular area, which can accommodate more dirt entering the pipe and help improve the function of the product.

[0025] When the toilet is filled with water, multiple water streams dive down from the basin ring at high speed, and the potential energy will continue to the siphon pipe. Therefore, air will be poured into the siphon pipe along with the water flow, especially for rotary flush toilets. The flushing water stirs the water seal of the water trap, and more air is mixed in. Water and solid waste are heavy, and are on the lower side when rising to the top of the bend 3. Air accumulates on the upper side of the pipe that cannot be filled with solid waste. The second section 4 has a large left and right width, allowing a sufficient amount of solid waste to pass through. The small upper and lower widths can accommodate less air, and the air is discharged quickly with a high discharge rate, thereby extending the siphon time. The small upper and lower widths can cause a squeeze on larger solid waste, and some strips of waste formed by the adhesion of particles can be broken and decomposed, and then diluted by water.

[0026] The second cross section 4 in this solution can be reduced relative to the reference ellipse by shortening its major axis R3 by 2mm-8mm compared to B1; shortening its minor axis R4 by 2mm-10mm compared to R2; when shortening the minor axis R4, the upper and lower ends can be shortened synchronously, or only the upper end can be shortened downward. The design purpose of the second cross section 4 in this solution is to reduce the air accommodating space, so that more cross sections are available for solid waste to pass through, thereby increasing the discharge speed and discharge rate of air in the siphon pipe.

[0027] The third section 7 is arranged at the lower end of the connecting bend 6 , and the diameter of the third section 7 is equal to that of the vertical pipe section 8 , so that the connecting bend 6 and the vertical pipe section 8 can be butted together seamlessly.

[0028] See also Figure 7 The cross section in the middle of the descending section 5 is formed by expanding and deforming the diameter of the second cross section 4. The lower end of the descending section 5 in this solution is bent forward, and the horizontal plane projection position of the end of the bottom wall 501 (point C) is located in front of the horizontal plane projection position of the front side of the inner wall of the middle section (point B), so that the sewage rushing down from the top rebounds on the bottom wall 501, so that the sewage rolls at the bottom of the descending section 5, and the solid dirt is further dispersed during the rolling process.

[0029] This solution squeezes (pinches) the solid waste through the second section 4 to deform the internal structure of the solid waste, and then releases the pressure through the descending pipe with a larger middle diameter to allow water and solid waste to blend. The bottom structure of the descending section 5 and the water-blocking effect of the third section 7 are used to stir the solid waste at the bottom of the descending section 5. The solid waste is stirred and dispersed by the water flow and is easier to discharge.

[0030] As an option, the sewage discharge section further includes a horizontal pipe section 9, one end of which is connected to the lower end of the vertical pipe section 8, and the other end is bent downward and connected to the building sewage outlet. The vertical pipe section 8 directly discharges downward so that solid sewage can fall quickly, increase the sewage discharge speed, and reduce energy loss; while adding a horizontal pipe section can prolong the siphon time, so that sewage can be discharged continuously, achieving the purpose of saving water.

[0031] The present invention utilizes the first section 1 with a larger cross-section to make it easier for solid waste to enter the pipeline; utilizes the low shape of the second section 4 to reduce the air in the curved top 3 to ensure the vacuum degree, thereby making the suction force of the siphon pipeline greater; and utilizes the smaller pipe diameter of the second section 4 to make the siphon time longer; utilizes the third section 7 to slow down the exit speed of the downcomer, thereby advancing the siphon occurrence time to achieve a water-saving effect; and at the same time, the water-blocking effect of the connecting bend 6 enables the downcomer to accumulate more water. When it is discharged at one time under the action of gravity, the vacuum degree on the upper side is better and the pulling force on the waste is greater.

[0032] The above description is only a preferred feasible embodiment of the present invention, and does not limit the scope of rights of the present invention. All equivalent changes made using the contents of the present specification and its drawings are included in the scope of rights of the present invention.

Claims

1. A siphon pipe, comprising an ascending section (2), a descending section (5) and a sewage discharge section, wherein the connection point between the ascending section (2) and the descending section (5) is the curved top (3) of the siphon pipe; the sewage discharge section comprises a vertical pipe section (8), and the descending section (5) is connected to the vertical pipe section (8) via a connecting bend (6), characterized in that: The end of the ascending section (2) is connected to the sewage discharge chamber, and the port of the ascending section (2) is set as a first section (1). The shape of the first section (1) is based on a reference ellipse (10), and its two and a half o'clock direction, four and a half o'clock direction, seven and a half o'clock direction and ten and a half o'clock direction are all expanded and deformed outward; the long axis of the reference ellipse (10) points to the left and right direction of the pipeline, and the short axis points to the up and down direction of the pipeline; The position of the bend top (3) is set as the second cross section (4), and the shape of the second cross section (4) is deformed based on the reference ellipse (10) with its major axis shortened by 2 mm to 8 mm and its minor axis shortened by 4 mm to 10 mm; A third section (7) is provided on the connecting bend (6), and the third section (7) is further reduced based on the second section (4), and the bottom wall (501) of the descending section (5) approaches horizontality.

2. The siphon pipe according to claim 1, characterized in that: The displacement distance of each outward expansion point of the first cross section (1) is 2 mm to 15 mm.

3. The siphon pipe according to claim 1, characterized in that: The short axis of the second section (4) is shortened, with both ends shortening simultaneously or only the upper end shortening downward.

4. The siphon pipe according to claim 1, characterized in that: The cross section in the middle of the descending section (5) is formed by expanding and deforming the second cross section (4) outward.

5. The siphon pipe according to claim 1, characterized in that: The third section (7) is arranged at the lower end of the connecting bend (6), and the diameter of the third section (7) is equal to that of the vertical pipe section (8).

6. The siphon pipe according to claim 1, characterized in that: The sewage discharge section also includes a horizontal pipe section (9), one end of which is connected to the lower end of the vertical pipe section (8), and the other end of which is bent downward and connected to the sewage outlet of the building.

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