Jetted penstock and flushing toilet

Abstract

The application discloses a kind of jet water guide pipe and flush toilet, the jet water guide pipe has water inlet end and water outlet end, the jet water guide pipe has helical flow guide surface, a generatrix makes helical motion from the water inlet end to the water outlet end around a vertical axis and forms the helical flow guide surface, water flow enters from the water inlet end and flows to the water outlet end along the helical flow guide surface under the action of its own gravity.The jet water guide pipe of the application makes water flow helical motion in the jet water guide pipe, thereby generating rotational inertia and impact force, which on the one hand increases the water outlet speed of water flow and increases the energy of water flow;On the other hand, it can ensure that water flow flows along the tangential direction of helical flow guide surface, reduces pipe resistance, and avoids water flow colliding with other parts in the jet water guide pipe to generate noise, while being beneficial to forming concentrated rotating water flow.

Description

Technical Field

[0001] The present invention relates to the technical field of toilets, and in particular to a jet water conduit and a flush toilet. Background Art

[0002] Flushing toilets utilize a jet of water to induce a siphon effect, removing waste. This jet of water flows from the water tank through the jet conduit and the jet outlet diversion section before being ejected from the jet outlet into the toilet bowl. This creates a strong force, discharging waste from the bowl. To conserve water, water-saving toilets have been developed. However, due to the low water consumption and the high resistance of the jet conduit, the water exiting the jet outlet is slow, making it difficult to displace waste. Summary of the Invention

[0003] The purpose of the present invention is to provide a jet water pipe and a flush toilet to solve the technical problem of existing water-saving toilets that the jet water pipe has a large pipe resistance, resulting in a slow water outlet speed of the water flowing out of the jet water pipe when it is ejected from the injection port, making it difficult to promote the discharge of waste.

[0004] The above-mentioned purpose of the present invention can be achieved by adopting the following technical solutions:

[0005] The present invention provides a jet water pipe, which has a water inlet end and a water outlet end. The jet water pipe is provided with a spiral guide surface. A busbar spirally moves around a vertical axis from the water inlet end to the water outlet end to form the spiral guide surface. Water enters from the water inlet end and flows along the spiral guide surface to the water outlet end under the action of its own gravity.

[0006] In an embodiment of the present invention, the width of the spiral guide surface in the generatrix direction is gradually reduced along the spiral motion direction.

[0007] In an embodiment of the present invention, the width of the spiral guide surface at the water inlet end is 50 mm-70 mm, and the width of the spiral guide surface at the water outlet end is 40 mm-55 mm.

[0008] In an embodiment of the present invention, the rotation angle of the busbar is 90 degrees to 120 degrees.

[0009] In an embodiment of the present invention, the jet water conduit further comprises a belly-contoured arc surface, which extends from the water inlet end to the water outlet end along a cylindrical spiral line parallel to the spiral guide surface, and the belly-contoured arc surface is located on the side of the spiral guide surface away from the vertical axis.

[0010] In an embodiment of the present invention, the jet water pipe also has a first arc transition surface and a second arc transition surface, the side of the spiral guide surface close to the vertical axis is connected to the outer wall surface of the toilet bowl, the side of the spiral guide surface away from the vertical axis is connected to one side of the ventral arc surface through the first arc transition surface, and the other side of the ventral arc surface is connected to the outer wall surface of the toilet bowl through the second arc transition surface.

[0011] In an embodiment of the present invention, the width of the abdominal arc surface in the vertical direction gradually increases along its extension direction, the arc length of the first arc transition surface gradually decreases from the water inlet end to the water outlet end, and the arc length of the second arc transition surface gradually decreases from the water inlet end to the connection position between the abdominal arc surface and the outer wall surface of the toilet bowl.

[0012] In an embodiment of the present invention, the water inlet end is connected to the drain outlet of the water tank through a connecting pipe, and the height of the water inlet end is lower than the height of the drain outlet, the height of the drain outlet is higher than the height of the water surface cover in the toilet bowl, and the flow cross-sectional area of ​​the connecting pipe gradually decreases along the conveying direction of the water flow.

[0013] In an embodiment of the present invention, the water outlet is connected to the spray port of the toilet bowl through a spray guide pipe, and the height of the water outlet is not lower than the height of the spray port.

[0014] In an embodiment of the present invention, the height difference between the water inlet and the water outlet is 50 mm to 65 mm.

[0015] The present invention also provides a flush toilet comprising the above-mentioned jet water conduit.

[0016] The characteristics and advantages of the present invention are:

[0017] The jet water conduit of the present invention is provided with a spiral guide surface. After the water flows into the water inlet end, it can flow along the spiral guide surface to the water outlet end under the action of its own gravity, so that the water flows in a spiral motion in the jet water conduit, thereby generating rotational inertia and impulse. On the one hand, the water outlet speed is improved and the energy of the water flow is increased; on the other hand, it can ensure that the water flows in the tangential direction of the spiral guide surface, reducing the pipe resistance and avoiding the water flow from colliding with other parts in the jet water conduit to generate noise, and at the same time, it is conducive to forming a concentrated rotating water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a three-dimensional view of the jet water conduit of the present invention.

[0020] Figure 2 This is a three-dimensional view of the jet water conduit of the present invention from another perspective.

[0021] Figure 3 This is a three-dimensional view of the jet water pipe of the present invention from another perspective.

[0022] Figure 4 for Figure 3 Cross-sectional views of points A, B, C, and D.

[0023] Figure 5 It is a partial cross-sectional view of the flush toilet of the present invention.

[0024] Figure 6 It is a side sectional view of a flush toilet of the present invention.

[0025] In the picture:

[0026] 100. Jet water pipe; 101. Water inlet; 102. Water outlet; 1. Spiral guide surface; 2. Belly arc surface; 21. First side; 22. Second side; 23. Third side; 24. Fourth side; 3. First arc transition surface; 4. Second arc transition surface; 200. Water tank; 201. Drain outlet; 202. Connecting pipe; 300. Jet guide pipe; 400. Bedpan; 401. Jet outlet; 402. Water cover; 403. Sewage outlet; 500. Siphon. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Implementation Method 1

[0029] like Figure 1 、 Figure 2 as well as Figure 5 As shown, the present invention provides a jet water conduit 100, which has a water inlet end 101 and a water outlet end 102. The jet water conduit 100 has a spiral guide surface 1. A busbar spirally moves around a vertical axis from the water inlet end 101 to the water outlet end 102 to form the spiral guide surface 1. Water enters from the water inlet end 101 and flows along the spiral guide surface 1 to the water outlet end 102 under the action of its own gravity.

[0030] The jet water conduit 100 of the present invention is provided with a spiral guide surface 1. After water enters the water inlet end 101, it can flow along the spiral guide surface 1 to the water outlet end 102 under the action of its own gravity, causing the water to perform a spiral motion in the jet water conduit 100, thereby generating rotational inertia and impulse. On the one hand, this increases the water outlet speed and energy of the water flow; on the other hand, it ensures that the water flow flows in the tangential direction of the spiral guide surface 1, reduces the pipe resistance, and prevents the water flow from colliding with other parts in the jet water conduit 100 and generating noise, while also facilitating the formation of a concentrated rotating water flow.

[0031] Specifically, the drain outlet 201 of the water tank 200 is connected to the jet guide pipe 300 via the jet water conduit 100, and water is then ejected from the jet outlet 401 of the toilet bowl 400. The main line is generally a straight line arranged in the horizontal direction, that is, the spiral guide surface 1 is a flat spiral surface. By configuring the spiral guide surface 1 as a flat spiral surface, it can better connect with the jet guide pipe 300, thereby allowing water to flow through the jet guide pipe 300 along the axial direction of the jet outlet 401 and be ejected from the jet outlet 401 of the toilet bowl 400. The water inlet end 101 of the jet water conduit 100 is connected to the drain outlet 201 of the water tank 200, and the water outlet end 102 of the jet water conduit 100 is connected to the jet outlet 401 of the toilet bowl 400. Because the velocity of water flowing out of the water tank 200 in existing flush toilets is relatively low, except for flush toilets equipped with an external water pump, in other flush toilets, the water flowing from the drain outlet 201 of the water tank 200 to the jet outlet 401 of the toilet bowl 400 primarily converts gravitational potential energy into kinetic energy. Therefore, by configuring the spiral guide surface 1 as the vertically lowest bottom surface of the jet water conduit 100, water entering the jet water conduit 100 from the water inlet end 101 falls onto the spiral guide surface 1 by its own gravity, and then flows along the spiral guide surface 1. Optionally, the generatrix is ​​generally a concave curve tangent to the horizontal direction, making the spiral guide surface 1 a spirally curved surface.

[0032] like Figure 1 、 Figure 2 as well as Figure 5 As shown, in an embodiment of the present invention, the width of the spiral guide surface 1 in the busbar direction (i.e., the horizontal direction) is gradually reduced along the direction of spiral movement, so that the water flow is continuously pressurized in the process of flowing along the spiral guide surface 1, thereby increasing the injection speed of the water when it passes through the injection guide pipe 300 and is ejected from the injection port 401.

[0033] Specifically, to ensure that spiral guide surface 1 has sufficient flow area, that is, that it can receive the entire water flow and flow only along spiral guide surface 1, the width of spiral guide surface 1 is set according to the flow rate of water discharged from water tank 200 each time. The greater the flow rate, the greater the width of spiral guide surface 1, and vice versa. The cross-sectional area of ​​the channel along the spiral motion direction of the jet water conduit 100 also gradually decreases.

[0034] In the embodiment of the present invention, the width of the spiral guide surface 1 at the water inlet end 101 is 50mm-70mm, and the width of the spiral guide surface 1 at the water outlet end 102 is 40mm-55mm. In this embodiment, the water tank 200 of the flush toilet is a sunken water tank, the width of the spiral guide surface 1 at the water inlet end 101 is 55mm-70mm, preferably 65mm, and the width of the spiral guide surface 1 at the water outlet end 102 is 45mm-55mm, preferably 50mm. Figure 3 and Figure 4 As shown, the cross-sectional areas of the four channels A, B, C, and D selected in sequence along the spiral motion direction on the jet water pipe 100 are 2000 mm 2 、1800mm 2 , 1400mm 2 , 1200mm 2 In another embodiment, the water tank of the flush toilet is a high water tank, the width of the spiral guide surface 1 at the water inlet end 101 is 50mm-60mm, preferably 55mm, and the width of the spiral guide surface 1 at the water outlet end 102 is 40mm-50mm, preferably 45mm.

[0035] like Figure 1 、 Figure 2 as well as Figure 5As shown, in an embodiment of the present invention, the jet water conduit 100 further includes a ventral arc surface 2, which extends from the water inlet end 101 to the water outlet end 102 along a cylindrical spiral line parallel to the spiral guide surface 1, and the ventral arc surface 2 is located on the side of the spiral guide surface 1 away from the vertical axis. To prevent a portion of the water flow from being thrown to the outside of the spiral guide surface 1 (i.e., the side away from the vertical axis) due to centrifugal force as the speed increases during the flow along the spiral guide surface 1, causing the water flow to diverge and the motion trajectory to become turbulent, the ventral arc surface 2 is provided on the outside of the spiral guide surface 1. When a portion of the water flow with a higher speed is thrown to the outside of the spiral guide surface 1 due to centrifugal force, it can land on the ventral arc surface 2 and continue its spiral motion along the ventral arc surface 2. Specifically, when a moving point moves at a constant speed along the straight generatrix of the cylindrical surface, and this generatrix simultaneously rotates at a constant speed around the axis of the cylindrical surface, the trajectory of the moving point is a cylindrical spiral line. Therefore, the ventral arc surface 2 moves along the cylindrical spiral line parallel to the spiral guide surface 1, so that the water flow makes a spiral motion synchronously with the water flow on the spiral guide surface 1 when flowing along the ventral arc surface 2. In this embodiment, the ventral arc surface 2 is located on the cylindrical surface where the cylindrical spiral line is located, that is, the ventral arc surface 2 only has an arc in the direction of the cylindrical spiral line and does not have an arc in the vertical direction, so that it can be better connected with the injection guide pipe 300, and is conducive to the water flow on the ventral arc surface 2 entering the injection guide pipe 300 and being able to be ejected along the axial direction of the injection port 401 under the guidance of the injection guide pipe 300. Optionally, the ventral arc surface also has an arc in the vertical direction.

[0036] like Figure 1 、 Figure 2 as well as Figure 5 As shown, the jet water conduit 100 also includes a first arc transition surface 3 and a second arc transition surface 4. The side of the spiral guide surface 1 near the vertical axis is connected to the outer wall of the toilet bowl 400. The side of the spiral guide surface 1 away from the vertical axis is connected to one side of the ventral arc surface 2 via the first arc transition surface 3. The other side of the ventral arc surface 2 is connected to the outer wall of the toilet bowl 400 via the second arc transition surface 4. The provision of the first arc transition surface 3 and the second arc transition surface 4 ensures that water flowing from the water inlet end 101, regardless of where it splashes, can flow down to the spiral guide surface 1, thus converging the water flow. The jet water conduit 100 is formed by the spiral guide surface 1, the ventral arc surface 2, the first arc transition surface 3, and the second arc transition surface 4, in conjunction with the outer wall of the toilet bowl 400, facilitating the integral molding of the jet water conduit 100 and the toilet bowl 400, preventing problems such as cracking and leakage.

[0037] like Figure 1 、 Figure 3 、 Figure 4 as well as Figure 5As shown, in an embodiment of the present invention, the width of the ventral arc surface 2 in the vertical direction gradually increases along its extension direction, the arc length of the first arc transition surface 3 gradually decreases from the water inlet end 101 to the water outlet end 102, and the arc length of the second arc transition surface 4 gradually decreases from the water inlet end 101 to the connection position between the ventral arc surface 2 and the outer wall surface of the toilet bowl 400. Since the speed of the water flow is low when it enters the water inlet end 101 and the flow direction is uncertain, the first arc transition surface 3 and the second arc transition surface 4 can act on the water flow in a larger area near the water inlet end 101, while the area of ​​the ventral arc surface 2 can act on the water flow is smaller, so that the water flow outside the spiral guide surface 1 can flow along the first arc transition surface 3 and the second arc transition surface 4 to the spiral guide surface 1 under the action of its own gravity; and as the speed of the water flow continues to increase, the water flow is increasingly susceptible to the action of centrifugal force and flows along the first arc transition surface 3 to the ventral arc surface 2. Therefore, by continuously increasing the area of ​​the ventral arc surface 2 that can act on the water flow, the faster water flow can flow along the ventral arc surface 2 and make a spiral motion.

[0038] Specifically, the belly arc surface 2 has a first side 21, a second side 22, a third side 23, and a fourth side 24. The first side 21 is connected to the outer side of the spiral guide surface 1 via a first arc transition surface 3. The second side 22 is connected to the outer wall of the toilet bowl 400 via a second arc transition surface 4. The third side 23 is directly connected to the outer wall of the toilet bowl 400. The fourth side 24 is connected to the jet guide pipe 300. The first arc transition surface 3 extends from the water inlet end 101 to the water outlet end 102 along a cylindrical spiral line parallel to the spiral guide surface 1 and is connected to the jet guide pipe 300. The second arc transition surface 4 has a first end and a second end. The first end is connected to the water inlet end 101 of the jet guide pipe 100, and the second end is connected to the junction of the second side 22 and the third side 23. The arc length of the second arc transition surface 4 gradually decreases from its first end to its second end.

[0039] like Figure 1 、 Figure 5 as well as Figure 6 As shown, the water inlet 101 is connected to the drain outlet 201 of the water tank 200 via a connecting pipe 202. The height of the water inlet 101 is lower than the height of the drain outlet 201, which is higher than the height of the water cover 402 inside the toilet bowl 400. The flow cross-sectional area of ​​the connecting pipe 202 gradually decreases along the direction of water flow. The water outlet 102 is connected to the spray outlet 401 of the toilet bowl 400 via a spray guide pipe 300, and the height of the water outlet 102 is no lower than the height of the spray outlet 401.

[0040] The magnitude of the rotational inertia and impulse generated by the spiral motion of water within the jet aqueduct 100 is closely related to the rotation angle of the generatrix and the height difference between the water inlet 101 and the water outlet 102 of the jet aqueduct 100. The greater the height difference and the greater the rotation angle, the greater the generated rotational inertia and impulse. However, since the water inlet 101 of the jet aqueduct 100 must be lower than the height of the drain outlet 201 of the water tank 200, and the water outlet 102 of the jet aqueduct 100 cannot be lower than the height of the jet outlet 401, and the installation space within the flush toilet is limited, the rotation angle of the generatrix is ​​limited. To fully elevate the height of the drain outlet 201 while ensuring smooth drainage, the drain outlet 201 is positioned on the side of the water tank 200. However, since the spiral guide surface 1 in the jet water conduit 100 requires a certain rotation angle, directly connecting the drain outlet 201 of the water tank 200 to the water inlet 101 of the jet guide pipe 300 via the jet water conduit 100 would result in an excessively large flush toilet. Therefore, the jet water conduit 100 is connected to the drain outlet 201 via a connecting pipe 202, facilitating a more rational layout of the jet water conduit 100. Furthermore, the cross-sectional area of ​​the connecting pipe 202 gradually decreases along the direction of water flow, allowing the pressurized water to enter the jet water conduit 100.

[0041] In this embodiment, the vertical distance (i.e., height difference) between the water inlet 101 and the water outlet 102 is 50 mm to 65 mm, ensuring that the water flow has sufficient gravitational potential energy and, therefore, that the water discharge velocity meets the requirements when it is discharged from the water outlet 102. The rotation angle of the generatrix is ​​90 to 120 degrees, ensuring that the water flow generates sufficient rotational inertia and flows along the spiral guide surface 1.

[0042] Implementation Method 2

[0043] like Figure 5 and Figure 6 As shown, the present invention also provides a flush toilet including a jet water conduit 100. The structure, operating principle, and beneficial effects of the jet water conduit 100 in this embodiment are identical to those of the jet water conduit 100 in Embodiment 1 and are not further described here. Specifically, the flush toilet also includes a toilet bowl 400, a water tank 200, a jet guide pipe 300, and a siphon 500. The toilet bowl 400 is connected to the jet guide pipe 300 via a jet port 401, and the toilet bowl 400 is connected to the siphon 500 via a sewage outlet 403. The operating principle of the flush toilet is identical to that of the prior art and is not further described here.

[0044] The above descriptions are only several embodiments of the present invention. Those skilled in the art may make various changes or modifications to the embodiments of the present invention based on the contents disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims

1. A jet water conduit, characterized in that: It has a water inlet and a water outlet. The jet water guide pipe has a spiral guide surface. A busbar spirally moves around a vertical axis from the water inlet to the water outlet to form the spiral guide surface. Water enters from the water inlet and flows along the spiral guide surface to the water outlet under the action of its own gravity. Wherein, the width of the spiral guide surface in the generatrix direction is gradually reduced along the spiral motion direction; The jet water conduit further comprises a belly arc surface, which extends from the water inlet end to the water outlet end along a cylindrical spiral line parallel to the spiral guide surface, and the belly arc surface is located on a side of the spiral guide surface away from the vertical axis; The jet water pipe also has a first arc transition surface and a second arc transition surface. The side of the spiral guide surface close to the vertical axis is connected to the outer wall of the toilet bowl, and the side of the spiral guide surface away from the vertical axis is connected to one side of the ventral arc surface through the first arc transition surface, and the other side of the ventral arc surface is connected to the outer wall of the toilet bowl through the second arc transition surface.

2. The jet water conduit according to claim 1, characterized in that: The width of the spiral guide surface at the water inlet end is 50 mm to 70 mm, and the width of the spiral guide surface at the water outlet end is 40 mm to 55 mm.

3. The jet water conduit according to claim 1, characterized in that: The rotation angle of the busbar is 90 degrees to 120 degrees.

4. The jet water conduit according to claim 1, characterized in that: The width of the abdominal arc surface in the vertical direction gradually increases along its extension direction, the arc length of the first arc transition surface gradually decreases from the water inlet end to the water outlet end, and the arc length of the second arc transition surface gradually decreases from the water inlet end to the connection position between the abdominal arc surface and the outer wall surface of the toilet bowl.

5. The jet water conduit according to claim 1, characterized in that: The water inlet end is connected to the drain outlet of the water tank through a connecting pipe, and the height of the water inlet end is lower than the height of the drain outlet, the height of the drain outlet is higher than the height of the water surface in the toilet bowl, and the flow cross-sectional area of ​​the connecting pipe gradually decreases along the water flow direction.

6. The jet water conduit according to claim 5, characterized in that: The water outlet is connected to the spray port of the toilet bowl through a spray guide pipe, and the height of the water outlet is not lower than the height of the spray port.

7. The jet water conduit according to claim 6, characterized in that: The height difference between the water inlet and the water outlet is 50mm-65mm.

8. A flush toilet, characterized in that: The invention comprises the jet water conduit according to any one of claims 1 to 7.

Images