A toilet seat

Abstract

The application discloses a toilet seat body, which comprises a seat body with a toilet bowl and a water tank arranged at the back of the seat body, the bottom of the toilet bowl is provided with a first water seal, the seat body is provided with a flushing water channel which is communicated with the outlet of the water tank and the toilet bowl, the flushing water channel comprises a washing channel which is communicated with the upper flushing port of the toilet bowl, the flushing water channel further comprises a pre-stored water channel which is located upstream of the washing channel, the pre-stored water channel comprises an ascending section which extends upward along the water flow direction, the outlet of the water tank forms the inlet of the pre-stored water channel, in the non-flushing state, the pre-stored water channel is provided with pre-stored water under the action of the atmospheric pressure and forms a second water seal, the water seal surface of the second water seal is above the water seal surface of the first water seal. The application can form pre-stored water on the flushing water channel, the pre-stored water can flow to the upper flushing port of the toilet bowl to more effectively flush the inner wall of the toilet bowl, and no components such as one-way valves are needed, so that the structure is simple and the function is reliable.

Description

Technical Field

[0001] This invention relates to the field of toilet technology, and in particular to a toilet seat. Background Technology

[0002] In existing technologies, such as the Chinese utility model patent disclosed in CN202831138U, entitled "An Installation Structure of a One-Way Valve for a Toilet," the spray water pipe is isolated from the outside atmosphere, ensuring that the air pressure inside the spray water pipe remains low compared to the outside air pressure after the toilet is flushed. After each flush, the spray water pipe retains some water, preventing it from being completely used up. Therefore, during the next flush, the pre-stored water in the spray water pipe can directly act on the siphon pipe, saving water stroke, accelerating the siphon process of the toilet, and extending the siphon time, greatly improving the flushing effect. To allow the pre-stored water to also flow through the scrubbing water pipe to the flushing opening at the top of the toilet bowl for effective flushing of the inner wall, the scrubbing water pipe needs to be connected to the spray water pipe. Thus, during flushing, part of the pre-stored water in the spray water pipe flows through the spray water pipe to the flushing opening at the bottom of the toilet bowl, while the other part flows through the scrubbing water pipe to the flushing opening at the top of the toilet bowl. To separate the jet water pipe from the scrubbing water pipe in the unflushing state, thereby preventing outside air from entering the jet water pipe through the scrubbing water pipe and ensuring the jet water pipe is isolated from the outside atmosphere to achieve pre-stored water, the technical solution disclosed in the aforementioned patent is to install a one-way valve inside the scrubbing water pipe. Specifically, in the unflushing state, the one-way valve is in the closed state, thus isolating the scrubbing water pipe and the jet water pipe; in the flushing state, the one-way valve opens under the action of water pressure, allowing the pre-stored water to flow into the scrubbing water pipe to effectively flush the inner wall of the toilet bowl.

[0003] However, the aforementioned existing technology requires a one-way valve structure to allow pre-stored water to flow into the washing water pipeline. This structure is relatively complex and costly. Furthermore, the one-way valve is prone to problems with poor sealing, which can allow outside air to enter the spray water pipeline, thus failing to achieve the function of pre-stored water. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a toilet seat that can form pre-stored water in the flushing channel. The pre-stored water can flow to the washing channel and then to the upper flushing port of the toilet bowl for more effective flushing of the inner wall of the toilet bowl. It does not require the installation of components such as one-way valves, has a simple structure, low cost, and reliable function.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A toilet seat includes a seat with a commode bowl and a water tank disposed at the rear of the seat. The bottom of the commode bowl has a first water seal. The seat has a flushing channel connecting the outlet of the water tank and the commode bowl. The flushing channel includes a washing passage leading to an upper flushing port of the commode bowl. The flushing channel also includes a pre-storage water channel located upstream of the washing passage. The pre-storage water channel includes an upward rising section extending in the direction of water flow. The outlet of the water tank forms the inlet of the pre-storage water channel. In the unflushed state, the pre-storage water channel contains pre-storage water under atmospheric pressure and forms a second water seal. The water surface of the second water seal is above the water surface of the first water seal.

[0007] The rising section extends upward at an angle or vertically upward along the direction of water flow, and the outlet of the rising section forms the outlet of the pre-stored water channel. The outlet of the water tank is located higher than the outlet of the rising section.

[0008] The bottom of the toilet bowl is provided with a lower flushing port located below the water level of the first water seal. The flushing water channel also includes a spray channel leading to the lower flushing port of the toilet bowl. The outlet of the rising section is connected to the inlet end of the washing channel and the inlet end of the spray channel, respectively.

[0009] Point a on the top wall at the inlet of the rising section is lower than point b on the bottom wall at the outlet of the rising section. The vertical distance between points a and b is L. In the unflushed state, the water surface of the second water seal is above point a.

[0010] The lower part of the water tank is lower than the upper surface of the base.

[0011] The rising section extends upward at an angle along the direction of water flow, and the angle of inclination of the rising section to the horizontal plane is between 30° and 80°.

[0012] The top wall of the rising section is part of the bottom wall of the water tank.

[0013] The pre-stored water channel also includes a horizontal section and a vertical section. The vertical section, the horizontal section and the rising section are connected in sequence along the water flow direction. The vertical section extends upward from the top wall of the horizontal section into the interior of the water tank. The top opening of the vertical section forms the outlet of the water tank, and the water in the vertical section flows downward.

[0014] The water tank is equipped with a drain valve, which opens and closes the outlet of the water tank. The drain valve passes through the vertical section, and the bottom wall of the horizontal section is provided with a second through hole for the drain valve to pass through and install. The bottom of the drain valve is locked to the second through hole.

[0015] The second water seal is upstream of the first water seal, and in the unflushed state, the water in the second water seal and the water in the first water seal are independent of each other and not connected.

[0016] The present invention has the following advantages:

[0017] This invention features a pre-storage water channel located upstream of the washing channel in the flushing waterway. This pre-storage water channel has an upward-extending rising section. In the unflushing state, the pre-storage water channel stores water under atmospheric pressure. Thus, during flushing, the pre-stored water in the channel allows for rapid and powerful flushing of the toilet bowl, resulting in a better cleaning effect. Furthermore, because the pre-storage water channel is upstream of the washing channel, water from the pre-storage water channel enters the washing channel and flows out from the upper flushing outlet of the toilet bowl, further rinsing the inner wall of the bowl. This invention eliminates the need for a one-way valve to prevent outside air from entering the pre-storage water channel through the washing channel; simply designing the pre-storage water channel upstream of the washing channel with an upward-extending section suffices for a simpler structure and more reliable function. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the toilet seat body of the present invention.

[0019] Figure 2 This is a top view of the toilet seat body of the present invention.

[0020] Figure 3 for Figure 2 Schematic diagram of the sectional view along the AA direction.

[0021] Figure 4 This is a schematic diagram showing the state of pre-stored water in the pre-stored water channel of the present invention.

[0022] Figure 5 This is a schematic diagram of the state when the drain valve of the present invention is not turned on for flushing.

[0023] Figure 6 This is a schematic diagram of the drain valve of the present invention when it is open for flushing.

[0024] In the diagram, 1 is the seat; 11 is the bedpan; 111 is the upper flushing port; 112 is the lower flushing port; 2 is the water tank; 21 is the water tank outlet; 3 is the pre-stored water channel; 31 is the rising section; 32 is the horizontal section; 33 is the vertical section; 5 is the second through hole; 6 is the washing channel; 7 is the drain valve; 71 is the base; 72 is the sealing assembly; 8 is the spray channel; W1 is the first water seal; W2 is the second water seal. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0027] like Figure 1 —The embodiment shown in 6.

[0028] A toilet seat includes a seat 1 having a toilet bowl 11 and a water tank 2 disposed at the rear of the seat 1. The bottom of the toilet bowl 11 has a first water seal W1. The seat 1 is provided with an outlet 21 communicating with the water tank 2 and the toilet bowl 11. Water from the water tank 2 flows to the toilet bowl 11 through the flushing water channel to flush the toilet bowl 11.

[0029] The flushing channel includes a washing channel 6 leading to the upper flushing port 111 of the toilet bowl 11 and a pre-storage water channel 3 located upstream of the washing channel 6. The pre-storage water channel 3 includes an upward-extending section 31 along the water flow direction. The outlet 21 of the water tank 2 forms the inlet of the pre-storage water channel 3. In the unflushed state, the pre-storage water channel 3 contains pre-storage water under atmospheric pressure, forming a second water seal W2 (e.g., ...). Figure 4 As shown, the water surface of the second water seal W2 is above the water surface of the first water seal W1. The second water seal W2 is upstream of the first water seal W1, and in the unflushed state, the water in the second water seal W2 and the water in the first water seal W1 are independent of each other and not connected.

[0030] Reference Figures 3 to 6 As shown, by setting a pre-storage water channel 3 upstream of the washing channel 6 in the rinsing water channel, the pre-storage water channel 3 has an upwardly extending rising section 31. In the unrinsed state, the pre-storage water channel 3 can pre-store water under atmospheric pressure (e.g., Figure 4As shown in the diagram, during flushing, because the pre-stored water channel 3 already contains pre-stored water, the water flow can quickly flush the toilet bowl 11, resulting in a stronger flushing force and better cleaning effect. Furthermore, since the pre-stored water channel 3 is located upstream of the washing channel 6, during flushing, water from the pre-stored water channel 3 enters the washing channel 6 and flows out from the upper flushing port 111 of the toilet bowl 11 to wash the inner wall of the toilet bowl 11. Compared with existing technologies, this invention does not require a one-way valve to prevent outside air from entering the pre-stored water channel 3 through the washing channel 6. It only requires designing the pre-stored water channel 3 to be located upstream of the washing channel 6 and to have an ascending section 31, resulting in a simpler structure and more reliable function.

[0031] The rising section 31 can extend upwards at an angle or vertically along the water flow direction. This embodiment specifically adopts an upward angle extension, which is more conducive to water flow and minimizes energy loss in the rising section 31. The outlet of the rising section 31 forms the outlet of the pre-stored water channel 3, that is, the pre-stored water channel 3 refers to the channel between the outlet 21 of the water tank 2 and the outlet of the rising section 31. The position of the outlet 21 of the water tank 2 (i.e., the inlet position of the pre-stored water channel 3) is higher than the position of the outlet of the rising section 31 (i.e., the outlet position of the pre-stored water channel 3). Under atmospheric pressure, there is a level difference in the pre-stored water within the pre-stored water channel 3; the water level near the outlet of the rising section 31 is lower than the water level near the outlet 21 of the water tank 2.

[0032] The bottom of the toilet bowl 11 is provided with a lower flushing port 112 located below the water level of the first water seal W1. The flushing water channel also includes a spray channel 8 leading to the lower flushing port 112 of the toilet bowl 11. The outlet of the rising section 31 is connected to the inlet end of the washing channel 6 and the inlet end of the spray channel 8, respectively. That is, the water flow in the pre-stored water channel 3 is split at the outlet of the pre-stored water channel 3, with one part flowing to the washing channel 6 and the other part flowing to the spray channel 8. The water flow to the washing channel 6 flows to the upper flushing port 111 of the toilet bowl 11 to clean the inner wall of the toilet bowl 11, and the water flow to the spray channel 8 flows to the lower flushing port 112 of the toilet bowl 11 to spray the sewage pipe, causing the sewage pipe to form a siphon.

[0033] Point a on the top wall of the inlet of the rising section 31 is lower than point b on the bottom wall of the outlet of the rising section 31, and the vertical distance between points a and b is L (e.g., ...). Figure 4 (As shown). In the unrinsed state, the water surface of the second water seal W2 is above the position at point a.

[0034] The lower part of the water tank 2 is lower than the upper surface of the seat 1, so that the internal space of the seat 1 can be fully utilized. The height of the part of the water tank 2 that protrudes from the upper surface of the seat 1 can be designed to be relatively low, so that the appearance design of the toilet seat can be more flexible.

[0035] The rising section 31 extends upward at an angle along the direction of water flow, and the angle of inclination of the rising section 31 to the horizontal plane is between 30° and 80°. Specifically, the angle of inclination of the rising section 31 to the horizontal plane can be 30°, 40°, 50°, 60°, 70°, 80°, etc.

[0036] The top wall of the rising section 31 serves as part of the bottom wall of the water tank 2, thus making the internal structure of the seat 1 more compact.

[0037] The pre-stored water channel 3 also includes a horizontal section 32 and a vertical section 33. The vertical section 33, the horizontal section 32 and the rising section 31 are sequentially connected along the water flow direction. The vertical section 33 extends upward from the top wall of the horizontal section 32 into the interior of the water tank 2. The top opening of the vertical section 33 forms the outlet 21 of the water tank 2. The water in the vertical section 33 flows downward.

[0038] The water tank 2 is equipped with a drain valve 7, which opens and closes the outlet 21 of the water tank 2. The drain valve can adopt a known existing drain valve structure. Figures 4-6 Only two components of the drain valve 7 are shown: the base 71 and the sealing assembly 72. The rest of the structure of the drain valve 7 is not shown. The base 71 has a drain port and is installed at the outlet 21 of the water tank 2. The sealing assembly 72 opens and closes the outlet 21 of the water tank 2 by opening and closing the drain port on the base 71. The specific structure and driving method of the drain valve 7 are not limited, as long as it can control the drainage or stop the drainage of the water tank 2.

[0039] In this embodiment, the base 71 passes through the vertical section 33. The bottom wall of the horizontal section 32 is provided with a second through hole 5 through which the base 71 of the water supply and drainage valve 7 is installed, and the bottom of the base 71 is locked to the second through hole 5. This design makes the installation and fixing of the base 71 simpler and easier.

[0040] Reference Figure 4 and Figure 5 As shown, in the unflushed state, since the drain valve 7 is in the state of closing the outlet 21 of the water tank 2, under the action of atmospheric pressure, there is pre-stored water in the vertical section 33, the horizontal section 32 and the rising section 31 (at this time, the liquid level of the pre-stored water in the vertical section 33 is higher than the liquid level of the pre-stored water in the rising section 31, and the atmospheric pressure maintains this liquid level difference). Therefore, when flushing, not much water is needed to fill the pre-stored water channel 3, and the water flow can be transmitted to the toilet bowl more quickly, thus enabling rapid flushing.

[0041] The working process of this invention is as follows:

[0042] Reference Figure 5As shown, at the end of each drainage, the drain valve 7 seals the outlet 21 of the water tank 2, thereby closing the connection between the water tank 2 and the pre-stored water channel 3. At this time, there is negative pressure in the pre-stored water channel 3. Therefore, under the action of atmospheric pressure, there is pre-stored water in the pre-stored water channel 3, and the pre-stored water forms a water seal, namely the second water seal W2.

[0043] Reference Figure 6 As shown, when flushing, the sealing assembly 72 of the drain valve is activated to open the outlet 21 of the water tank 2. At this time, water from the water tank 2 enters the pre-storage water channel 3. Since there is already water in the pre-storage water channel 3, the water can flow rapidly in two directions: one to the jet channel 8 and out of the lower flushing port 112 of the toilet bowl, and the other to the washing channel 6 and out of the upper flushing port 111 of the toilet bowl. The directions of the two water flows can be specifically referred to... Figure 6 The arrows indicate the direction of flushing. After flushing, drain valve 7 reseals outlet 21 of water tank 2, and pre-stored water is re-stored in pre-stored water channel 3, restoring the original state. Figure 5 The state shown.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A toilet seat body comprising a seat body (1) having a bowl and a water tank (2) arranged at the rear of the seat body (1), the bottom of the bowl having a first water seal (W1), the seat body (1) being provided with a flushing water channel communicating the outlet of the water tank (2) with the bowl, the flushing water channel comprising a washing passage (6) leading to an upper flushing opening of the bowl, characterized in that: The flushing water channel further comprises a pre-stored water channel (3) located upstream of the washing channel (6), the pre-stored water channel (3) comprises an ascending section (31) extending upward along the water flow direction, and the outlet of the water tank (2) forms the inlet of the pre-stored water channel (3), in the non-flushing state, the pre-stored water channel (3) has pre-stored water under the action of atmospheric pressure and forms a second water seal (W2), and the water seal surface of the second water seal (W2) is above the water seal surface of the first water seal (W1). The top wall a point at the inlet of the ascending section (31) is lower than the bottom wall b point at the outlet of the ascending section (31), the vertical distance between the a point and the b point is L, and in the non-flushing state, the water seal surface of the second water seal (W2) is above the a point.

2. A toilet seat as claimed in claim 1, wherein: The ascending section (31) extends upward along the water flow direction, and the outlet of the ascending section (31) forms the outlet of the pre-stored water channel (3), and the outlet of the water tank (2) is located higher than the outlet of the ascending section (31).

3. A toilet seat as claimed in claim 2, wherein: The bottom of the toilet bowl is provided with a lower flushing opening (112) below the water level of the first water seal (W1), the flushing water channel further comprises a jet channel (8) leading to the lower flushing opening (112) of the toilet bowl, and the outlet of the ascending section (31) is in communication with the inlet end of the washing channel (6) and the inlet end of the jet channel (8) respectively.

4. A toilet seat as defined in claim 1, wherein: The lower part of the water tank (2) is lower than the upper surface of the seat body (1).

5. A toilet seat as defined in claim 1, wherein: The ascending section (31) extends upward along the water flow direction, and the ascending section (31) has an inclination angle with the horizontal plane in the range of 30°-80°.

6. A toilet seat as defined in claim 1, wherein: The top wall of the ascending section (31) is part of the bottom wall of the water tank (2).

7. A toilet seat as defined in claim 1, wherein: The pre-stored water channel (3) further comprises a horizontal section (32) and a vertical section (33), the vertical section (33), the horizontal section (32) and the ascending section (31) are sequentially and in communication, the vertical section (33) extends upward from the top wall of the horizontal section (32) to the inside of the water tank (2), the top end opening of the vertical section (33) forms the outlet of the water tank (2), and the water flow in the vertical section (33) flows downward.

8. A toilet seat as claimed in claim 7, characterised in that: The water tank (2) is provided with a drain valve (7) which opens and closes the outlet of the water tank (2), the drain valve (7) is arranged in the vertical section (33), the bottom wall of the horizontal section (32) is provided with a second through hole (5) for mounting the drain valve (7), and the bottom of the drain valve (7) is lockingly connected with the second through hole (5).

9. A toilet seat as defined in claim 1, wherein: The second water seal (W2) is upstream of the first water seal (W1), and in the non-flushing state, the water of the second water seal (W2) and the water of the first water seal (W1) are independent and not connected.

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