Water outlet device and pedestal pan using same
By introducing a shrink-shaped rectifier section and a mixing chamber into the water outlet device, the complex structure and noise problems in the prior art are solved, and the effect of full mixing of water and gas and noise reduction is achieved.
Patent Information
- Application Number
- CN202422288217.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The Venturi channel structure of the existing water outlet device is complex, which leads to inconvenient production and installation, and insufficient mixing of water and gas, causing noise.
The design of a shrink-mouth rectifier section and a mixing chamber is adopted to form a negative pressure suction using the Venturi effect, and the water and gas are fully mixed through the rectifier section and the mixing chamber to reduce noise.
It realizes the adequacy of water and gas mixing and effective reduction of noise, has a simple structure, and reduces the difficulty of production and installation.
Smart Images
Figure CN223074866U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a water outlet device, in particular to a water outlet device and a toilet using the same. Background Art
[0002] Some existing water outlet devices, such as nozzles, etc., are provided with a Venturi channel structure inside. The Venturi effect is utilized to form a negative pressure inside, and external air is inhaled and mixed to form bubble water. In order to make the water and gas mix fully, a relatively complex gas mixing structure is often required to be arranged inside the Venturi channel. However, due to the complex structure, production and installation are inconvenient. Summary of the Utility Model
[0003] The utility model aims to at least solve one of the above technical problems in the related art to a certain extent. For this purpose, the utility model provides a water outlet device.
[0004] To achieve the above object, the technical solution of the utility model is as follows:
[0005] The utility model also provides a toilet with the above water outlet device.
[0006] The water outlet device according to the first aspect embodiment of the utility model includes a Venturi channel, an air inlet channel and a water outlet cavity. The Venturi channel has a suction section that forms a negative pressure after passing water and a rectifying section located on the downstream side of the suction section. The suction section can absorb external air through the air inlet channel. The downstream end of the Venturi channel is communicated with the upstream end of the water outlet cavity. The rectifying section is in a shape of a reduced opening that gradually narrows towards the upstream end of the water outlet cavity. Wherein, the liquid flowing into the suction section of the Venturi channel can axially impact on the inclined wall of the rectifying section.
[0007] The water outlet device according to the embodiment of the utility model has at least the following beneficial effects: The reduced-opening rectifying section has a radial impact and rebound component force on the flowing water and gas, so that the water and gas are mixed axially and radially, and the overall structure is simple, and the water and gas are mixed fully.
[0008] According to some embodiments of the utility model, it further includes a mixing cavity. The mixing cavity is connected between the downstream end of the Venturi channel and the upstream end of the water outlet cavity. The inner diameter of the mixing cavity is larger than the inner diameter of the downstream end of the Venturi channel, the inner diameter of the mixing cavity is larger than the inner diameter of the upstream end of the water outlet cavity, and the inner diameter of the downstream end of the Venturi channel is larger than the inner diameter of the upstream end of the water outlet cavity.
[0009] According to some embodiments of the present utility model, it includes a first pipe body, a second pipe body and a water distribution plate. A first pipeline is provided inside the first pipe body. Inside the second pipe body, a second pipeline, a third pipeline and a fourth pipeline are arranged in sequence along the axial direction. The water distribution plate is located between the first pipeline and the second pipeline. A plurality of flow holes are formed on the water distribution plate. The second pipeline forms the suction section. The air inlet channel is opened on the second pipe body at the position corresponding to the second pipeline. The third pipeline is in a necked-down shape from the second pipeline towards the fourth pipeline. The first pipeline, the flow holes, the second pipeline, the third pipeline and the fourth pipeline constitute the Venturi channel, and the fourth pipeline serves as the downstream end of the Venturi channel.
[0010] According to some embodiments of the present utility model, the inner diameter of the downstream end of the Venturi channel is G, the inner diameter of the mixing chamber is H, and the inner diameter of the upstream end of the water outlet chamber is I, which satisfy: I < 0.9G, 1.2G < H < 1.5G.
[0011] According to some embodiments of the present utility model, the sum of the length dimensions of the second pipeline, the third pipeline and the fourth pipeline in the axial direction is E, and the length dimension of the mixing chamber in the axial direction is F, which satisfy: E > 1.5G, 0.8H < F < 1.2H.
[0012] According to some embodiments of the present utility model, the total radial cross-sectional area of each flow hole is A, and the radial cross-sectional area of the upstream end of the water outlet chamber is S, which satisfy: A < 0.8S.
[0013] According to some embodiments of the present utility model, each flow hole is distributed within a virtual circumferential area on the water distribution plate. The diameter of the virtual circumferential area is D, which satisfy: 1.1G < D < 1.4G.
[0014] According to some embodiments of the present utility model, the transition position between the mixing chamber and the upstream end of the water outlet chamber is in a stepped shape.
[0015] According to the toilet of the second aspect embodiments of the present utility model, it includes a toilet body and a water outlet device installed on the toilet body.
[0016] The toilet according to the embodiments of the present utility model has at least the following beneficial effects: The water and gas are fully mixed through the water outlet device, and bubbles are formed in the formed fluid. Since the acoustic impedance difference between the gas and the liquid is relatively large, the sound wave will encounter more impedance mismatches during propagation. These bubbles will act as scatterers of the sound wave, increasing the scattering and attenuation of the sound wave, resulting in an increase in energy loss and a weakening of the sound, thereby effectively reducing the noise generated by the fluid impact in the toilet bowl.
[0017] According to some embodiments of the present utility model, the toilet body is provided with a fecal cavity, a water inlet ring groove is circumferentially arranged at the top of the fecal cavity, the water inlet ring groove is communicated with the fecal cavity, the water outlet device is installed on the water inlet ring groove, and the fluid ejected by the water outlet device flows in a swirling manner along the circumference of the water inlet ring groove towards the fecal cavity.
[0018] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings
[0019] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0020] Figure 1 is a top view of the low-noise flushing structure of the toilet;
[0021] Figure 2 is a schematic structural diagram of one embodiment of the water outlet device
[0022] Figure 3 is a schematic structural diagram of another embodiment of the water outlet device;
[0023] Figure 4 is Figure 3 the internal structural cross-sectional view of;
[0024] Figure 5 is Figure 4 the fluid flow schematic diagram of;
[0025] Figure 6 is a schematic diagram of the water distribution plate. Detailed Embodiments
[0026] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation to the present utility model.
[0027] In some embodiments of the present utility model, as Figure 2As shown, the water outlet device includes a Venturi channel 201, an air inlet channel 202, and a water outlet chamber 204. The interior of the Venturi channel 201 includes a suction section 205 and a rectifying section 206. The Venturi channel 201 is connected to an external water tank. When the water tank supplies water to the water outlet device, water flows through the Venturi channel 201. According to the Venturi effect, a negative pressure is formed in the suction section 205 of the Venturi channel 201. The air inlet channel 202 is connected to the suction section 205, and the negative pressure formed in the suction section 205 sucks air from the external environment into the suction section 205 through the air inlet channel 202. The air and water are mixed in the Venturi channel 201 to form a fluid. The rectifying section 206 is located on the downstream side of the suction section 205. The rectifying section 206 is in the shape of a constriction that gradually narrows in the direction of the upper end of the water outlet chamber 204. The water-air mixed fluid is rectified through the constriction-shaped rectifying section 206. Among them, the liquid flowing into the suction section 205 of the Venturi channel 201 can axially impact the inclined wall of the rectifying section 206. As shown in the figure, a part of the fluid directly flows from the central axis of the rectifying section 206 into the water outlet chamber 204; a part of the fluid impacts the inclined wall of the rectifying section 206, and this part of the fluid rebounds from the inclined wall of the rectifying section 206 towards the central axis direction of the rectifying section 206, so that the water and air are fully mixed in the rectifying section 206.
[0028] During the mixing process of water and air in the water outlet device, certain noise will also be generated. To reduce this noise, in some embodiments of the present invention, such as Figure 3 , Figure 4 and Figure 5As shown, on the basis of the above embodiment, the water outlet device further includes a mixing chamber 203. The mixing chamber 203 is connected between the downstream end of the Venturi channel 201 and the upstream end of the water outlet chamber 204. The inner diameter of the mixing chamber 203 is larger than the inner diameter of the downstream end of the Venturi channel 201, and the inner diameter of the mixing chamber 203 is larger than the inner diameter of the upstream end of the water outlet chamber 204. The rectifying section 206 is in the shape of a reducing opening that gradually narrows towards the mixing chamber 203. The fluid mixed with water and gas is rectified through the reducing-opening-shaped rectifying section 206, and after rectification, it flows into the mixing chamber 203 from the downstream end of the Venturi channel 201. When the fluid flows from the mixing chamber 203 towards the water outlet chamber 204, since the upstream end of the water outlet chamber 204 is reduced relative to the mixing chamber 203, and the inner diameter of the downstream end of the Venturi channel 201 is larger than the inner diameter of the upstream end of the water outlet chamber 204, after the fluid rushes into the mixing chamber 203 from the downstream end of the Venturi channel 201, it will inevitably be blocked when hitting the transition position between the mixing chamber 203 and the water outlet chamber 204, and part of the fluid close to the inner wall of the mixing chamber 203 will flow back towards the downstream end of the Venturi channel 201. However, since the rectifying section 206 is in the shape of a reducing opening, the flow rate on the downstream side of the rectifying section 206 is greater than that on its upstream side, the water pressure on the downstream side of the rectifying section 206 is relatively large, and the downstream end of the Venturi channel 201 is reduced relative to the rectifying section 206, so it is difficult for the fluid flowing back in the mixing chamber 203 to enter the rectifying section 206. Furthermore, the fluid flows back in the mixing chamber 203 from the downstream end of the Venturi channel 201 towards the upstream end of the water outlet chamber 204, preventing the fluid from flowing back into the rectifying section 206 and generating noise, thereby forming a uniform eddy current at the position close to the inner wall of the mixing chamber 203. On the one hand, this makes the mixing of water and gas more sufficient. On the other hand, when the sound wave propagates to the eddy current region, the energy of the sound wave will interact with the fluid particles in the eddy current. The eddy current partially converts the energy of the sound wave into mechanical energy through its rotational motion, thereby consuming the energy of the sound wave. At the same time, the dynamic change of the eddy current also causes the sound wave to be scattered and absorbed during propagation, effectively reducing the noise generated during the mixing of water and gas in the water outlet device.
[0029] Specifically, as Figure 3 and Figure 4As shown in the figure, the water outlet device includes a first pipe body 210, a second pipe body 220, and a water distribution plate 230. The first pipe body 210 and the second pipe body 220 are coaxially connected, and they can be connected by means such as threaded connection or snap connection. A first pipeline 211 is provided inside the first pipe body 210, and a second pipeline 221, a third pipeline 222, and a fourth pipeline 223 are provided inside the second pipe body 220 and arranged axially in sequence. The second pipeline 221 is closer to the first pipeline 211 than the fourth pipeline 223. The water distribution plate 230 is installed between the first pipeline 211 and the second pipeline 221. A plurality of flow holes 231 are provided on the water distribution plate 230. The second pipeline 221 forms a suction section 205. An air inlet passage 202 is opened on the pipe wall of the second pipe body 220, and the position where the air inlet passage 202 is located is opposite to the position of the second pipeline 221. The third pipeline 222 is in a constricted shape from the second pipeline 221 towards the fourth pipeline 223. The first pipeline 211, the flow holes 231, the second pipeline 221, the third pipeline 222, and the fourth pipeline 223 form a Venturi passage 201. The third pipeline 222 is the rectification section 206. The fourth pipeline 223 serves as the downstream end of the Venturi passage 201. Among them, the inner diameters of the first pipeline 211 and the second pipeline 221 can be set to be equal. The upstream end of the first pipe body 210 can be connected to an external water tank. After water enters the first pipeline 211, it flows through the flow holes 231 of the water distribution plate 230 to form multiple accelerated jets, and a negative pressure is generated in the second pipeline 221 under the Venturi effect, and water and gas are mixed and rectified in the rectification section 206. Among them, the mixing chamber 203 and the water outlet chamber 204 can be provided on a third pipe body 240, and the downstream end of the second pipe body 220 is inserted into the third pipe body 240 for connection. The transition position at the upstream ends of the mixing chamber 203 and the water outlet chamber 204 is in a stepped shape. The water in the mixing chamber 203 is blocked and refluxed through the stepped part. When the second pipe body 220 is inserted into the third pipe body 240, the end of the second pipe body 220, that is, the end of the fourth pipeline 223, is inserted into the mixing chamber 203, and the end of the fourth pipeline 223 also forms a stepped shape in the mixing chamber 203, so as to achieve a certain effect of blocking and refluxing water.
[0030] In some specific embodiments of the present invention, as Figure 5 shown, the inner diameter of the downstream end of the Venturi passage 201 is G, the inner diameter of the mixing chamber 203 is H, and the inner diameter of the upstream end of the water outlet chamber 204 is I, which satisfy: I < 0.9G, 1.2G < H < 1.5G. Among them, the inner diameters of each part of the water outlet chamber 204 can be set to be uniform, that is, the water outlet chamber 204 is in a cylindrical shape. The inner diameter of the downstream end of the Venturi passage 201 is also the inner diameter of the fourth pipeline 223. The inner diameter of the fourth pipeline 223 is equal to the minimum inner diameter of the third pipeline 222. The inner diameter of the second pipeline 221 is equal to the maximum inner diameter of the third pipeline 222. Within the above range, the fluid achieves a good eddy flow effect in the mixing chamber 203.
[0031] Further, the sum of the axial length dimensions of the second pipe 221, the third pipe 222, and the fourth pipe 223 is E, and the axial length dimension of the mixing chamber 203 is F, and they satisfy: E > 1.5G, 0.8H < F < 1.2H, which can ensure the kinetic energy of the fluid flowing in the water outlet device.
[0032] Further, the total radial cross-sectional area of each flow-through hole 231 is A, and the radial cross-sectional area of the upstream end of the water outlet chamber 204 is S, and they satisfy: A < 0.8S, which can ensure the Venturi effect when the liquid flows through each flow-through hole 231 and enters the second pipe 221. Further, as Figure 5 and Figure 6 shown, each flow-through hole 231 is distributed within a virtual circumferential region on the water distribution plate 230, and the diameter of the virtual circumferential region is D, and they satisfy: 1.1G < D < 1.4G, so as to ensure that after the water passes through the flow-through holes 231, a part of the water can directly impact on the inclined wall of the third pipe 222 to form a rebound.
[0033] The above water outlet device can be applied to various water-using products such as shower heads, faucets, spray guns, bathtubs, and shower heads. On the one hand, it can improve the water-air mixing, and on the other hand, it can effectively reduce the noise generated during the internal water-air mixing.
[0034] The present utility model further relates to a toilet, which applies the above water outlet device. As Figure 1 、 Figure 3 and Figure 4 shown, the toilet body 100 is provided with a fecal cavity 110. The water outlet device is installed on the toilet body 100. The water outlet device can be connected to the water tank configured with the toilet, and can also be directly connected to an external water supply system such as a water pipe. At the same time, the water outlet device is also connected to the external atmospheric environment or an external air supply device such as an air pump. Among them, it can be that the water outlet device includes a conventional Venturi tube, and the Venturi tube uses the Venturi effect to mix liquid and gas to form the above-mentioned fluid. When in use, liquid such as water and gas such as air enter the water outlet device, and the water outlet device mixes the liquid and gas to form a fluid in a gas-liquid mixed state. The fluid is sprayed onto the wall of the fecal cavity 110. When the fecal cavity 110 is rinsed with water alone conventionally, when the sound wave propagates in water, the medium properties encountered are relatively consistent, and the propagation efficiency is relatively high. Therefore, the sound generated by the collision is also relatively obvious, resulting in a large noise during the rinsing process. The low-noise flushing structure of the toilet mixes water and gas through the water outlet device, and bubbles are formed in the formed fluid. Since the acoustic impedance differences between gas and liquid are relatively large, the sound wave will encounter more impedance mismatches during the propagation process. These bubbles will act as scatterers of the sound wave, increasing the scattering and attenuation of the sound wave, resulting in an increase in energy loss and a weakening of the sound, thereby effectively reducing the noise generated when the fluid impacts in the fecal cavity 110. The toilet has a low noise during flushing.
[0035] Furthermore, as Figure 1 shown, a water inlet ring groove 120 is provided at the top of the toilet cavity 110, and the water inlet ring groove 120 is arranged circumferentially around the top of the toilet cavity 110. The water inlet ring groove 120 is directly communicated with the toilet cavity 110 in the circumferential direction. The water outlet device 200 is installed on the water inlet ring groove 120. The fluid ejected by the water outlet device 200 impacts on the water inlet ring groove 120, and the ejection direction of the fluid can be tangent to the groove wall of the water inlet ring groove 120. After the fluid flows along the circumference of the water inlet ring groove 120, it will flow into the toilet cavity 110, and the fluid flows in a swirling manner in the toilet cavity 110, so as to fully flush the toilet cavity 110.
[0036] In the description of this specification, the description with reference to terms such as "some specific embodiments" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0037] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.
Claims
1. A water outlet device, characterized in that: It includes a Venturi channel (201), an air inlet channel (202) and a water outlet cavity (204). Inside the Venturi channel (201), there is a suction section (205) that forms a negative pressure after water passes through it, and a rectifying section (206) located on the downstream side of the suction section (205). The suction section (205) can absorb external air through the air inlet channel (202). The downstream end of the Venturi channel (201) is communicated with the upstream end of the water outlet cavity (204). The rectifying section (206) is in the shape of a constriction that gradually narrows towards the upstream end of the water outlet cavity (204). Among them, the liquid flowing into the suction section (205) of the Venturi channel (201) can axially impact the inclined wall of the rectifying section (206).
2. The water outlet device according to claim 1, wherein: It further includes a mixing cavity (203). The mixing cavity (203) is connected between the downstream end of the Venturi channel (201) and the upstream end of the water outlet cavity (204). The inner diameter of the mixing cavity (203) is larger than the inner diameter of the downstream end of the Venturi channel (201), the inner diameter of the mixing cavity (203) is larger than the inner diameter of the upstream end of the water outlet cavity (204), and the inner diameter of the downstream end of the Venturi channel (201) is larger than the inner diameter of the upstream end of the water outlet cavity (204).
3. The water outlet device according to claim 2, characterized in that: It includes a first pipe body (210), a second pipe body (220) and a water distribution plate (230). Inside the first pipe body (210), there is a first pipeline (211). Inside the second pipe body (220), there are a second pipeline (221), a third pipeline (222) and a fourth pipeline (223) arranged in sequence along the axis. The water distribution plate (230) is located between the first pipeline (211) and the second pipeline (221). A plurality of flow holes (231) are formed on the water distribution plate (230). The second pipeline (221) forms the suction section (205). The air inlet channel (202) is opened on the second pipe body (220) at the position corresponding to the second pipeline (221). The third pipeline (222) is in the shape of a constriction from the second pipeline (221) towards the fourth pipeline (223). The first pipeline (211), the flow holes (231), the second pipeline (221), the third pipeline (222) and the fourth pipeline (223) constitute the Venturi channel (201), and the fourth pipeline (223) serves as the downstream end of the Venturi channel (201).
4. The water outlet device according to claim 3, characterized in that: The inner diameter of the downstream end of the Venturi channel (201) is G, the inner diameter of the mixing cavity (203) is H, and the inner diameter of the upstream end of the water outlet cavity (204) is I, which satisfy: I < 0.9G, 1.2G < H < 1.5G.
5. The water outlet device according to claim 4, characterized in that: The sum of the length dimensions of the second pipeline (221), the third pipeline (222) and the fourth pipeline (223) in the axial direction is E, and the length dimension of the mixing cavity (203) in the axial direction is F, which satisfy: E > 1.5G, 0.8H < F < 1.2H.
6. The water outlet device according to claim 4, wherein: The total radial cross-sectional area of each of the flow holes (231) is A, and the radial cross-sectional area of the upstream end of the water outlet chamber (204) is S, which satisfies: A < 0.8S.
7. The water outlet device according to claim 4, wherein: Each of the flow holes (231) is distributed within a virtual circumferential region on the water distribution plate (230). The diameter of the virtual circumferential region is D, which satisfies: 1.1G < D < 1.4G.
8. The water outlet device according to claim 3, characterized in that: The transition position between the mixing chamber (203) and the upstream end of the water outlet chamber (204) is stepped.
9. A toilet, characterized in that: It includes a toilet body and the water outlet device according to any one of claims 1 to 8 mounted on the toilet body.
10. The toilet according to claim 9, wherein: The toilet body (100) is provided with a feces chamber (110). An inlet ring groove (120) is provided along the circumference at the top of the feces chamber (110). The inlet ring groove (120) communicates with the feces chamber (110). The water outlet device is mounted on the inlet ring groove (120). The fluid ejected by the water outlet device flows in a swirling manner along the circumference of the inlet ring groove (120) towards the feces chamber (110).