Siphon type blow-off pipe and pedestal pan

Abstract

The utility model relates to the technical field of sanitary ware, and discloses a siphoning type blow-off pipe and a pedestal pan, the siphoning type blow-off pipe comprises a sewage inlet section, a bending section and a descending section which are communicated in sequence, the sewage inlet section is arranged at the front part of the bending section, one end, close to the bending section, of the sewage inlet section is gradually lifted, the descending section is arranged at the rear part of the bending section, and the end, close to the bending section, of the descending section is gradually lifted. And the top curvature of the bent section on the cross section is greater than the bottom curvature. The siphoning type blow-off pipe is not prone to blocking dirt and good in siphoning blow-off effect.

Description

Technical Field

[0001] This utility model relates to the field of sanitary ware technology, and in particular to a siphon-type sewage pipe and a toilet. Background Technology

[0002] When a siphon-type sewage pipe is in operation, the speed and force of the sewage and water flow through the bend will affect the pipe's siphon capacity. Only when the sewage and water flow can instantly rush through the bend and smoothly enter the descending section can the pipe's siphon effect be truly realized.

[0003] The cross-sectional area of ​​the existing siphon sewage pipe is almost circular, meaning that the curvature is almost the same at every point. This type of pipe is prone to dirt accumulation, making it easy for dirt to get stuck at the bends. Some even require pre-installed cleaning holes on the pipe to remove dirt.

[0004] Therefore, it is necessary to develop a siphon-type sewage pipe that is not prone to clogging and has a good siphon discharge effect. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a siphon-type sewage pipe that is not easy to get stuck and has a good siphon sewage discharge effect.

[0006] The technical problem to be solved by this utility model is to provide a toilet that is not easy to get stuck with dirt and has a good siphon sewage discharge effect.

[0007] To solve the above-mentioned technical problems, this utility model provides a siphon-type sewage pipe, including an inlet section, a bend section, and a descending section arranged in sequence. The inlet section is located at the front of the bend section, and the end of the inlet section near the bend section gradually rises. The descending section is located at the rear of the bend section, and the curvature of the top of the bend section in cross-section is greater than that of the bottom.

[0008] As an improvement to the above scheme, the curvature of the side of the curved section gradually increases towards the top in the cross-section.

[0009] As an improvement to the above scheme, the bottom curvature of the sewage inlet section in cross-section is greater than that of the bottom curvature of the bending section in cross-section.

[0010] As an improvement to the above scheme, the cross-sectional area of ​​the sewage inlet section is smaller than the cross-sectional area of ​​the bending section.

[0011] As an improvement to the above scheme, the curvature of the bottom of the bending section in the longitudinal section gradually increases towards the direction of the descending section.

[0012] As an improvement to the above scheme, the bottom curvature of the descending segment in the cross-section is greater than the bottom curvature of the bending segment in the cross-section; and / or

[0013] The cross-sectional area of ​​the descending section is smaller than the cross-sectional area of ​​the bending section.

[0014] As an improvement to the above scheme, the bottom curvature of the sewage inlet section gradually decreases in the direction of approaching the bending section.

[0015] As an improvement to the above scheme, a sewage discharge section connected to the descending section is also included. The sewage discharge section has a sewage outlet at the end away from the descending section, and the sewage inlet section has a sewage inlet at the end away from the bending section. The center of the sewage discharge outlet is lower than the center of the sewage inlet.

[0016] As an improvement to the above scheme, a slope is provided at the bottom of the sewage inlet section near the sewage inlet. The slope gradually descends from the sewage inlet toward the bend section, and the slope is 5 to 20°.

[0017] In addition, this utility model also provides a toilet, which includes a basin, a sludge collection part, a flushing part, and the above-mentioned siphon sewage pipe. The flushing part is located at the top of the basin, the sludge collection part is located at the bottom of the basin, the sludge inlet section is connected to the sludge collection part, the bottom of the sludge collection part gradually rises away from the sludge inlet section, and the sludge collection part is provided with a spray hole that is arranged opposite to the sludge inlet.

[0018] Implementing this utility model has the following beneficial effects:

[0019] This utility model discloses a siphon-type sewage pipe. By configuring the siphon-type sewage pipe with a sequentially connected inlet section, bend section, and descending section, the inlet section is located at the front of the bend section, and the descending section is located at the rear of the bend section. The top curvature of the bend section in cross-section is greater than its bottom curvature, and the bottom of the bend section is designed with a larger radius of curvature in cross-section, i.e., a gentler structure. When sewage enters the bend section, the water flow is affected by gravity during the impact, and more water will concentrate in the lower half of the pipe. If the sewage piles up high, the sewage at the higher level will be more concentrated than that at the lower level. The force exerted by the water flow on the waste varies; waste at the bottom experiences greater force and is more easily pushed, while waste at higher levels experiences less force. Therefore, the higher the waste accumulates, the more it hinders the flow of waste. When waste enters the bend section of the drain pipe of this invention, on the one hand, the height of the waste accumulation is reduced, and the force exerted by the water flow on the waste inside the pipe is more concentrated, making it easier to be flushed into the descending section; on the other hand, the reduced accumulation height of the waste in the bend section decreases the climbing height that the waste has to climb from the inlet section to the bend section, reducing the gravitational resistance and making it easier for the waste to be flushed out. This drain pipe is less prone to clogging and has a good siphon drainage effect. Attached Figure Description

[0020] Figure 1 This is a longitudinal section schematic diagram of an embodiment of a siphon-type sewage pipe according to this utility model;

[0021] Figure 2 yes Figure 1 A cross-sectional view of the location of the curved section in the middle;

[0022] Figure 3 yes Figure 1 A cross-sectional view of the location of the sewage inlet section;

[0023] Figure 4 yes Figure 2 Cross section of the middle bending section and Figure 3 Comparison diagrams of the cross-sections of the central sewage inlet section;

[0024] Figure 5 yes Figure 1 A schematic diagram showing the position and dimensions of the protruding part located in the descending section;

[0025] Figure 6 yes Figure 1 The flushing water flow path diagram;

[0026] Figure 7 This is a schematic diagram of an embodiment of the toilet according to the present invention;

[0027] Figure 8 yes Figure 7 A schematic diagram of the slope angle at the bottom of the sewage inlet. Detailed Implementation

[0028] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0029] like Figures 1 to 6 As shown, this utility model discloses an embodiment of a siphon-type sewage pipe, including an inlet section 11, a bend section 12, a descending section 13, and a discharge section 14 arranged sequentially. The inlet section 11 is located at the front of the bend section 12, and the end of the inlet section 11 near the bend section 12 gradually rises. The descending section 13 is located at the rear of the bend section 12, and the curvature of the top of the bend section 12 in cross-section is greater than that of the bottom.

[0030] Because the bend section 12 is a key component affecting the siphon capacity of the siphon pipe during operation, the speed and force of the debris and water flow passing through the bend section 12 both affect the siphon capacity. Only when the debris and water flow can instantly pass through the bend section 12 and smoothly enter the descending section 13 can the siphon effect of the pipe be truly realized. In this embodiment, the curvature of the top of the bend section 12 in cross-section is made greater than that of the bottom, and the bottom of the bend section 12 is designed with a larger radius of curvature in cross-section, i.e., a more gentle structure. When debris enters the bend section 12, the water flow is affected by gravity during the impact, and more water flow will concentrate in the lower half of the pipe. When the debris is piled up high, the force of the water flow on the debris at higher positions is different from that on the debris at lower positions. The debris at the bottom is subjected to greater force and is easier to push, while the debris at higher positions is subjected to less force. Therefore, the higher the debris piles up, the more it hinders the flow of debris. When the debris enters the bend section 12 of the drain pipe in this embodiment, on the one hand, the height of the debris piled up will be reduced, and the force of the water flow on the debris inside the pipe will be more concentrated, making it easier to be flushed into the descending section 13. On the other hand, the height of the debris piled up in the bend section 12 is reduced, and the climbing height that the debris has to climb from the inlet section 11 to the bend section 12 is reduced, and the gravitational resistance is reduced, which is more conducive to the debris being flushed out. This drain pipe is not easy to get stuck in the debris and has a good siphon drainage effect.

[0031] In addition to designing the bottom of the bend section 12 with a larger radius of curvature in its cross-section, i.e., a gentler structure, this invention also designs the side portion of the bend section 12 near the bottom with a larger radius of curvature in its cross-section, i.e., a gentler structure. Compared with the elliptical cross-section structure used in existing sewage pipes, in this embodiment, the sewage in the sewage pipe is less likely to maintain sufficient contact with the bottom sides of the bend section 12. The space on both sides of the bottom of the bend section 12 will be occupied by water flow, which can lubricate and lift the sewage, helping it to pass through the bend section 12 quickly and further improving the siphon effect.

[0032] In this embodiment, the inlet section 11, located away from the bend section 12, has an inlet 111. The bend section 12, the descending section 13, and the discharge section 14 form a continuous S-shaped bend. The bend section 12 is located at the highest point of the discharge pipe 1, and its lower rear section is connected to the descending section 13, which in turn connects to the discharge section 14. The discharge section 14, located away from the descending section 13, has a discharge outlet 141, which connects to an external discharge channel. Preferably, the center of the discharge outlet is lower than the center of the inlet to increase the siphon space and help extend the siphon duration.

[0033] In addition, combined Figure 7 and Figure 8This utility model also provides an embodiment of a toilet, which includes a basin 2, a waste collection section 3, a flushing section 4, a support section 5, a water tank section 6, and the aforementioned siphon-type drain pipe 1. The flushing section 4 is located at the top of the basin 2, the waste collection section 3 is located at the bottom of the basin 2, the support section 5 is connected to the bottom of the siphon-type drain pipe 1, and the water tank section 6 is located at the top of the siphon-type drain pipe 1 to accommodate the water inlet device. The flushing section 4 is connected to the water tank section 6. The support section 5 can effectively support the drain pipe 1, ensuring that the drain pipe 1 will not deform during the drying and firing vitrification stages, thus guaranteeing the pipe's drainage function. The siphon-type sewage pipe 1 includes an inlet section 11, a bend section 12, a descending section 13, and a discharge section 14 arranged sequentially. The inlet section 11 is located at the front of the bend section 12, and the end of the inlet section 11 near the bend section 12 gradually rises. The inlet section 11 connects to the sludge accumulation section 3. The descending section 13 is located at the rear of the bend section 12. The bottom of the inlet section 11 near the inlet port 111 has a slope that gradually descends from the inlet port 111 towards the bend section 12. The bottom of the sludge accumulation section 3 gradually rises away from the inlet section 11, and the bottom surface of the sludge accumulation section 3 smoothly transitions to the bottom of the inlet section 11. The sludge accumulation section 3 has a spray hole 31 opposite to the inlet port 111.

[0034] The spray hole 31 is connected to a water inlet device, which is equipped with a certain water pressure. The spray hole 31 is positioned opposite the sewage inlet 111, and the center of the spray hole 31 and the center of the sewage inlet 111 are preferably on the same center line. At the same time, the bottom of the sludge accumulation section 3 gradually rises away from the sewage inlet section 11, so that the front end of the bottom of the sludge accumulation section 3 is slightly higher than the rear end. All of these factors are conducive to pushing the dirt from the sludge accumulation section 3 into the sewage pipe 1. In addition, the sloping structure at the bottom of the sewage inlet section 11 near the sewage inlet 111 can help the dirt slide with the water flow, increase the flow rate of dirt and water, and thus increase the negative pressure in the sewage pipe. The slope angle α of the ramp should not be too large or too small. If the slope angle α is too large, the dirt will slide directly into the inlet 111 and concentrate in the inlet section 11 when it falls to the dirt accumulation section 3. When flushing, the direction of the water jet is consistent with the slope angle, but the dirt is concentrated in the inlet section 11, and the dirt and water cannot be pushed smoothly to the bend section 12. If the slope angle α is too small, the bottom surface of the dirt accumulation section 3 will not have a sliding effect on the dirt. Therefore, preferably, the slope angle α of the ramp is 5 to 20°, and there can be a certain deviation range within the preferred value. This allows the dirt and water to be flushed more easily to the top of the drain pipe 1, making the negative pressure in the drain pipe more obvious.

[0035] Since the bend section 12 of the siphon-type sewage pipe is prone to dirt accumulation, this embodiment preferably makes the cross-sectional area of ​​the sewage inlet section 11 smaller than the cross-sectional area of ​​the bend section 12, and designs the lower half of the pipe at the bend section 12 with a gentler structure to effectively reduce the probability of dirt accumulation at the bend section 12 and help dirt pass through the bend section 12 more smoothly.

[0036] In this embodiment, the inner walls of the inlet section 11, the bending section 12, and the descending section 13 all have smooth transitions. Specifically, the bottom curvature of the inlet section 11 in cross-section is greater than that of the bending section 12 in cross-section, and the bottom curvature of the inlet section 11 in cross-section gradually decreases towards the bending section 12. The main function of the inlet port 111 and the inlet section 11 is to serve as a transition section for waste accumulation and entry into the bending section 12. At the inlet port 111, water flows to fill the inlet port 111. When water flows out from the flush end of the toilet and the jet hole 31, the force of the water flow is consistent throughout the inlet port 111. Therefore, the higher the waste is piled up, the more uniform the force is, and the easier it is to directly flush into the inlet section 11. Therefore, to promote the accumulation of waste in the inlet section 11 near the inlet port 111, the bottom curvature of the inlet section 11 in cross-section is not less than the top curvature. When the water flows from the inlet section 11 to the bend section 12, it rises upwards and, due to gravity, the water flow is more concentrated at the bottom. Therefore, based on the water flow characteristics, the lower half of the bend section 12, i.e., the bottom of the bend section 12 and the part of the side of the bend section 12 near the bottom, is designed with a larger radius of curvature in the cross-section, i.e., a more gentle structure. On the one hand, the dirt is distributed at the lower end of the pipe in this section, and the height of the dirt accumulation is reduced, so the force of the water flow can better push the dirt out of the bend section 12. On the other hand, the height of the dirt accumulation in the bend section 12 is reduced, and the climbing height that the dirt has to climb from the inlet section 11 to the bend section 12 is reduced, and the gravitational resistance is reduced, which is more conducive to the dirt being flushed out. This sewage pipe is not easy to get stuck and has a good siphon sewage discharge effect.

[0037] Since the bottom curvature of the inlet section 11 is not less than the top curvature in cross-section, the waste is piled up more tightly near the inlet 111. When it enters the bend section 12, the cross-sectional area of ​​the bend section is larger, and the bottom and the side near the bottom of the cross-section are flatter, making it difficult for the waste to continue to pile up. Under the lubrication and lifting effect of the water flow in the space on both sides of the bottom of the bend section 12, the waste can pass through the bend section 12 quickly, which further helps to improve the siphon effect.

[0038] Preferably, the cross-sectional area of ​​the descending section 13 is smaller than the cross-sectional area of ​​the bending section 12, and the bottom curvature of the descending section 13 on the cross-section is greater than the bottom curvature of the bending section 12 on the cross-section, so as to increase the flow velocity of sewage passing through the descending section 13 and accelerate the siphon effect.

[0039] In this embodiment of the sewage pipe structure, among the inlet section 11, the bend section 12, and the descending section 13, the bend section 12 has the smallest bottom curvature on the cross-section. That is, the bottom curvature radius of other parts of the sewage pipe 1 on the cross-section is smaller than that of the bend section 12 on the cross-section, and the bottom of the bend section 12 is designed to be the flattest.

[0040] The curvature of the bottom of the curved section 12 in the longitudinal section preferably increases gradually towards the descending section 13, that is, the bottom of the curved section 12 bulges towards the side closer to the descending section 13. This structural arrangement makes the side of the curved section 12 closer to the sewage inlet section 11 more gentle, which facilitates the smooth flow of sewage towards the top of the curved section 12. On the other hand, it reduces the horizontal distance between the rear wall of the descending section 13 and the lowest water level position of the curved section 12. When the water flows through the curved section 12, the surface tension of the water in the curved section 12 decreases, and the water is less likely to flow along the pipe wall. The water flowing down from the curved section 12 is more likely to form a parabolic shape and collide with the rear wall of the descending section 13, further breaking up the sewage and preventing it from getting stuck.

[0041] Preferably, in this embodiment, the rear wall of the descending section 13 extends forward at the end away from the bending section 12 to form a protrusion 131, which causes the water flowing through it to disperse and form a water curtain that is sprayed toward the sewage discharge section 14. By setting up a siphon-type sewage pipe 1 that sequentially connects an inlet section 11, a bend section 12, a descending section 13, and a discharge section 14, with the inlet section 11 located at the front of the bend section 12 and the descending section 13 located at the rear of the bend section 12, when the water flow into the inlet section 11 increases, the water level rises along the inlet section 11. When the water flow passes through the bend section 12 and enters the descending section 13, the water flow collides with the protrusion 131, causing the water flow to disperse and forming a water curtain in the discharge section 14 that can reduce the entry of external air or even isolate external air. At this time, a negative pressure space will be formed at the top of the bend section 12, thereby accelerating the siphon phenomenon, accelerating the intake of water and sewage in front of the inlet section 11, and promoting the discharge of water and sewage through the sewage pipe 1.

[0042] When the water flows through the bend section 12 and enters the descending section 13, the water curtain formed by the collision of the water flow and the protrusion 131 can play a sealing role, reducing the entry of external air and even isolating the air outside the sewage discharge section 14. Without waiting for sewage to fill the pipe behind the bend section 12, a negative pressure space will be formed at the top of the bend section 12, which is conducive to quickly starting the siphon effect of the sewage discharge pipe 1. Compared with the ordinary siphon sewage pipe 1, the siphon starts to work earlier, which can help extend the siphon duration. Moreover, the negative pressure in the bend section 12 is greater, the sewage discharge capacity is stronger, and the water-saving performance is better.

[0043] In this embodiment, the sewage discharge section 14 is horizontally extended away from the descending section 13 at one end, in a direction away from the sewage inlet section 11, so as to achieve wall drainage while obtaining a strong siphon sewage discharge effect and water-saving function.

[0044] Because the protrusion 131 in this embodiment extends forward at the end away from the bend section 12, and the bottom curvature of the bend section 12 in the longitudinal section preferably gradually increases towards the descending section 13, that is, the protrusion 131 bulges towards the side closer to the inlet section 11, and the bottom of the bend section 12 bulges towards the side closer to the descending section 13, this structural arrangement reduces the horizontal distance between the rear wall of the descending section 13 and the lowest water level position of the bend section 12. When water flows through the bend section 12, the surface tension of the water flow in the bend section 12 decreases, making it difficult for the water flow to flow along the pipe wall. The water flow falling from the bend section 12 is more likely to form a parabolic shape and collide with the bulging protrusion 131, generating a water curtain. The angle between the tangent at the bottom of the curved section 12 with the protrusion 131 at the point of maximum curvature in the longitudinal section is preferably 76 to 102°, so that more water flow can collide head-on with the protrusion 131, the water curtain formed is more uniform, the sealing is better, and a greater negative pressure can be formed inside the curved section 12.

[0045] Based on the extension 131 provided in the descending section 13, this embodiment also provides a protrusion in the sewage discharge section 14 that protrudes towards the side near the sewage inlet section 11. The protrusion and the extension 131 are smoothly transitioned to form a continuous convex arc surface, so as to guide the sewage to be discharged smoothly into the sewage outlet 141 at the rear.

[0046] In this embodiment, the protrusion 131 is preferably located above the inlet 111, and the center of the outlet 141 is lower than the center of the inlet 111. This shortens the flow path of water from the inlet 111 to the formation of the water curtain, speeds up the start time of the siphon, and increases the drop between the lower inlet 111 and the outlet 141, thereby increasing the duration of the siphon and improving the sewage discharge capacity.

[0047] To accelerate the siphon effect, in this embodiment, the angle β between the protrusion 131 and the horizontal plane is preferably set to 58–75°, and the projection distance between the top and bottom ends of the protrusion 131 on the horizontal plane is set to 7–23 mm. More preferably, the angle β between the protrusion 131 and the horizontal plane is set to 62–69°, and the length h is set to 12–18 mm. Of course, a certain deviation range can be allowed within the range of the preferred values. This allows the water flow to produce the desired effect when passing through this point, thereby facilitating the rapid activation of the siphon effect of the drain pipe 1.

[0048] When the toilet of this invention starts flushing, the basin 2 forms a vortex of water flow into the sludge accumulation section 3. At the same time, the water jet from the jet hole 31 pushes the water and dirt in the sludge accumulation section 3 into the inlet 111. Under the action of the vortex force of the water flow in the basin 2 and the force of the jet water flow, as well as the bottom slope of the sludge accumulation section 3 and the inlet section 11 near the inlet 111, the water flow can easily pass through the inlet section 11 to the bend section 12. When the water flow passes through the bend section and enters the descending section 13, the water flow collides with the protrusion, causing the water flow to disperse and form a water curtain that can isolate air in the discharge section 14. External air cannot enter the pipe from the discharge port 141. At this time, a negative pressure space is generated in the bend section 13, thereby producing a siphon phenomenon. The remaining water and dirt in the sludge accumulation section 3 are all sucked into the drain pipe and discharged from the discharge port 141.

[0049] The toilet of this invention can meet the needs of wall drainage, is not easy to get stuck with dirt, has strong siphon sewage discharge capacity, and has good water-saving performance. Compared with the existing wall-mounted horizontal siphon toilet, the toilet of this invention does not require an expensive pre-embedded iron frame, saves complicated installation steps, and has low installation cost.

[0050] The above-disclosed embodiment is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A siphon-type sewage pipe, characterized in that, It includes a sludge inlet section, a bend section, and a descending section arranged in sequence. The sludge inlet section is located at the front of the bend section and gradually rises at one end near the bend section. The descending section is located at the rear of the bend section. The top curvature of the bend section in cross-section is greater than the bottom curvature.

2. The siphon-type sewage pipe as described in claim 1, characterized in that, The curvature of the curved section on the side gradually increases towards the top in the cross-section.

3. The siphon-type sewage pipe as described in claim 1 or 2, characterized in that, The curvature of the bottom of the inlet section in cross-section is greater than that of the bottom of the bend section in cross-section.

4. The siphon-type sewage pipe as described in claim 1 or 2, characterized in that, The cross-sectional area of ​​the sewage inlet section is smaller than the cross-sectional area of ​​the bend section.

5. The siphon-type sewage pipe as described in claim 1 or 2, characterized in that, The curvature of the bottom of the curved section gradually increases towards the direction of the descending section.

6. The siphon-type sewage pipe as described in claim 1, characterized in that, The curvature at the bottom of the descending section in cross-section is greater than that at the bottom of the bending section in cross-section; and / or The cross-sectional area of ​​the descending section is smaller than the cross-sectional area of ​​the bending section.

7. The siphon-type sewage pipe as described in claim 3, characterized in that, The curvature of the bottom of the inlet section gradually decreases towards the direction of the bend.

8. The siphon-type sewage pipe as described in claim 1, characterized in that, It also includes a sewage discharge section connected to the descending section, with a sewage discharge port at the end of the sewage discharge section away from the descending section, and a sewage inlet at the end of the sewage inlet section away from the bending section, with the center of the sewage discharge port being lower than the center of the sewage inlet.

9. The siphon-type sewage pipe as described in claim 8, characterized in that, The bottom of the sewage inlet section near the sewage inlet is provided with a slope, which gradually descends from the sewage inlet toward the bend section, and the slope of the slope is 5 to 20°.

10. A toilet seat, characterized in that, The device includes a basin, a sludge accumulation section, a flushing section, and a siphon-type sewage pipe as described in any one of claims 1 to 9. The flushing section is located at the top of the basin, the sludge accumulation section is located at the bottom of the basin, the sludge inlet section is connected to the sludge accumulation section, the bottom of the sludge accumulation section gradually rises away from the sludge inlet section, and the sludge accumulation section is provided with a spray hole that is disposed opposite to the sludge inlet.

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