Constant-flow noise reduction fluid control mechanism and bathroom equipment

Abstract

The utility model belongs to the technical field of bathroom accessories, and particularly relates to a constant-flow noise reduction fluid control mechanism and bathroom equipment. Comprising a constant flow assembly, and the constant flow assembly comprises a constant flow shell, a flow adjusting part and an elastic part; a water inlet channel, a limiting protrusion and a water outlet channel which are arranged in the axial direction are arranged in the constant flow shell, and the limiting protrusion is located between the water inlet channel and the water outlet channel. An annular groove is formed in the top end face of the limiting protrusion, and a first sealing ring is arranged in the annular groove. A first through hole penetrating through the axial direction of the limiting bulge is formed in the center of the limiting bulge; a first water outlet is formed in the side, close to the water inlet channel, of the limiting protrusion, a second water outlet is formed in the side, close to the water outlet channel, of the limiting protrusion, the first water outlet communicates with the annular groove and the water outlet channel, and the second water outlet communicates with the first through hole and the water outlet channel. The elastic piece is arranged on the outer side of the guide column part in a sleeving mode, the guide column part penetrates through the first through hole, the radial clamping jaw part abuts against the buckling face of the bottom end of the limiting protrusion, and a dynamic gap is formed between the flow adjusting table and the top end face of the limiting protrusion.

Description

Technical Field

[0001] This utility model belongs to the field of bathroom technology, and in particular relates to a constant flow noise reduction fluid control mechanism and bathroom equipment. Background Technology

[0002] In the current field of fluid control, the demand for stable water supply and noise reduction is becoming increasingly urgent across various application scenarios. From civil facilities to industrial production, stable and low-noise water flow control plays a crucial role in improving user experience, ensuring production efficiency, and extending equipment lifespan.

[0003] In terms of constant current control, many existing constant current control products on the market exhibit significant limitations. They generally use 0.15MPa water pressure as a critical inflection point, such as... Figure 10 As shown in curve A2, when the water pressure is below 0.15 MPa, the flow rate and pressure exhibit an upward-sloping linear relationship, meaning the flow rate increases significantly with increasing pressure. However, when the water pressure reaches or exceeds 0.15 MPa, the flow rate and pressure gradually approach a near-horizontal linear relationship, and the flow rate remains essentially constant. While the constant flow device disclosed in application number CN201210126817.4 has achieved the basic goal of maintaining a constant water volume under different water pressure environments, there is still considerable room for improvement in expanding its constant flow function. Especially in the low water pressure range, it cannot achieve effective constant flow control, making it difficult to meet the stringent constant flow requirements in scenarios such as insufficient water pressure in old buildings or unstable water pressure in remote areas. This limitation not only affects the user's water experience in low-pressure environments (e.g., fluctuating water flow from faucets) but may also damage equipment that relies on a stable water flow, increasing equipment maintenance costs and the risk of failure. Furthermore, this constant flow device only has a constant flow function and its noise reduction and rectification effects are far from ideal.

[0004] Based on this, the present invention provides a novel constant flow noise reduction fluid control mechanism and bathroom equipment to overcome the above-mentioned defects. Utility Model Content

[0005] One objective of this invention is to provide a constant flow noise reduction fluid control mechanism. This mechanism has a relatively simple structure, utilizing only the interaction between the elastic force of the elastic element and the water pressure to achieve dynamic self-adjustment of the gap between the flow regulating platform and the top surface of the limiting protrusion. This achieves purely mechanical constant flow, eliminating the need for external sensors or control units, reducing the possibility of malfunctions, improving the reliability and service life of the mechanism, and lowering maintenance costs. Furthermore, this constant flow noise reduction fluid control mechanism has a constant flow inflection point at a water pressure of 0.1 MPa. Shifting the constant flow inflection point forward allows the water flow to remain stable over a wider range of water pressures.

[0006] The present invention adopts the following technical solution: a constant flow noise reduction fluid control mechanism, comprising a constant flow component, wherein the constant flow component comprises a constant flow housing, a flow regulating component, and an elastic component;

[0007] The constant flow housing is provided with an axially oriented water inlet channel, a limiting protrusion, and an outlet channel, with the limiting protrusion located between the water inlet channel and the outlet channel;

[0008] The top surface of the limiting protrusion is provided with an annular groove, and a first sealing ring is provided in the annular groove; the center of the limiting protrusion is provided with a first through hole penetrating its axial direction; the limiting protrusion is provided with a first water outlet on the side near the water inlet channel and a second water outlet on the side near the water outlet channel, the first water outlet connecting the annular groove and the water outlet channel, and the second water outlet connecting the first through hole and the water outlet channel;

[0009] The flow regulating component includes a guide post, a flow regulating platform at the top of the guide post, and a radial claw at the end of the guide post. The elastic element is sleeved on the outside of the guide post. The guide post passes through the first through hole and the radial claw abuts against the locking surface at the bottom of the limiting protrusion. A dynamic gap is formed between the flow regulating platform and the top surface of the limiting protrusion.

[0010] Furthermore, the constant current noise reduction fluid control mechanism also includes a noise reduction component;

[0011] The noise reduction assembly includes a main housing, a noise reduction housing, and a second sealing ring;

[0012] The main shell has a first water passage inside, a countersunk hole at the top and an external thread structure on the outer wall;

[0013] The noise reduction housing forms a second water passage inside, and a positioning platform matching the countersunk hole is provided at the top. The positioning platform is installed at the countersunk hole of the main housing. The second water passage connects the water outlet channel of the constant flow housing with the first water passage of the main housing.

[0014] The second sealing ring is located between the stepped surface at the top of the water outlet channel of the constant flow housing and the top end face of the main housing; the main housing is screwed to the internal thread structure of the inner wall of the water outlet channel of the constant flow housing through the external thread structure until the top ends of the main housing and the noise reduction housing press together to tighten the second sealing ring, thereby achieving a sealing and locking between the main housing and the constant flow housing.

[0015] Furthermore, the cross-sectional area of ​​the second water passage inside the noise reduction housing gradually decreases along the water flow direction; and multiple sets of chain-shaped side outlets are opened circumferentially along the side wall of the second water passage, the chain-shaped side outlets being connected to the first water passage.

[0016] The bottom of the noise reduction housing is provided with a spherical sealing shell.

[0017] Furthermore, the chain-shaped side outlet is inclined.

[0018] Furthermore, the total flow area of ​​the chain-like side outlet is ≥ 1.2 times the inlet area of ​​the second water passage.

[0019] Furthermore, the constant current noise reduction fluid control mechanism also includes a rectifier assembly;

[0020] The rectifier assembly includes a rectifier housing, a rectifier cover, and a third sealing ring;

[0021] The top of the rectifier housing is built into the outlet of the first water passage at the bottom of the main housing;

[0022] The third sealing ring is fitted onto the outer wall of the rectifier housing and abuts against the end face of the bottom of the main housing;

[0023] The rectifier cover is sleeved on the outer wall of the rectifier housing and located below the third sealing ring. The inner wall of the rectifier cover is provided with an internal thread, which is screwed into the external thread on the outer wall of the bottom end of the main housing. The rectifier cover, through the axial displacement of the engagement of the internal thread and the external thread, squeezes the third sealing ring, thereby realizing the locking and fixing connection between the rectifier housing and the main housing.

[0024] Furthermore, the rectifier housing includes an upper rectifier housing and a lower rectifier housing. The upper rectifier housing has a through and regularly arranged honeycomb water passage, and the lower rectifier housing has a columnar water passage. The columnar water passage is connected to the honeycomb water passage.

[0025] Furthermore, the outer wall surface of the upper part of the rectifier shell is an arc-shaped convex surface, and correspondingly, the outlet of the first water passage at the bottom end of the main shell is an arc-shaped concave surface that matches the arc-shaped convex surface.

[0026] Furthermore, the honeycomb-shaped water passage is vertically arranged.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] The general working principle of the constant current noise reduction fluid control mechanism in this utility model is as follows:

[0029] When the water pressure is lower than a preset threshold, the constant flow component operates in a low-pressure mode. The elastic force of the elastic element is greater than the water pressure, and this force pushes the flow regulating element upward, maintaining a gap between the flow regulating platform and the top surface of the limiting protrusion. After the water flows in through the inlet channel, it splits into two paths into the outlet channel. One path flows directly into the outlet channel through the first outlet, while the other path flows into the outlet channel sequentially through the gap between the flow regulating platform and the top surface of the limiting protrusion, the first through hole, and the second outlet. In the low-pressure mode, in the first flow path, the first sealing ring undergoes only slight deformation under low pressure, resulting in a slight reduction in the flow area of ​​the first outlet. However, the second flow path replenishes the flow through the dynamic gap, keeping the total flow constant.

[0030] When the water pressure reaches or exceeds a preset threshold, the constant flow component enters a high-pressure operating mode. The water pressure overcomes the elastic force of the elastic element, pressing the flow regulating component downwards, causing the flow regulating platform to fit against the top surface of the limiting protrusion. The dynamic gap between them becomes zero, thus cutting off the second flow path. Simultaneously, due to the increased water pressure, the first sealing ring deforms, blocking part of the flow area of ​​the first outlet. This significantly reduces the effective flow area of ​​the first outlet; that is, the deformation of the first sealing ring reduces the flow area of ​​the first outlet. At this time, water can only flow into the outlet channel through the first outlet. In high-pressure operating mode, although the flow area decreases, the high-pressure water velocity increases. According to the conservation relationship of flow rate = velocity × flow area, the total flow rate remains constant.

[0031] This invention relates to a constant flow noise reduction fluid control mechanism that can automatically adjust the flow path and flow area of ​​water under different water pressure conditions to achieve constant flow output. At low pressure, a certain flow rate is ensured by increasing the flow path (two inlets); at high pressure, the flow area is reduced (water enters only through the first outlet, which is partially blocked) to prevent excessive flow, thus maintaining a relatively stable flow output under different water pressure environments. Simultaneously, the dual-flow-path design disperses the impact energy of the water flow, reducing cavitation noise generated by high-speed jets in a single flow path.

[0032] Furthermore, the entire constant flow assembly has a relatively simple structure, mainly consisting of a constant flow housing, a flow regulating component, and an elastic component, without complex electronic components or control systems. It achieves dynamic self-adjustment of the gap between the flow regulating platform and the top surface of the limiting protrusion solely through the interaction of the elastic force of the elastic component and water pressure, realizing purely mechanical constant flow. This eliminates the need for external sensors or control units, reducing the likelihood of malfunctions, improving the reliability and service life of the mechanism, and lowering maintenance costs.

[0033] Furthermore, as shown in Table 1, the experimental data reveals that the constant flow noise reduction fluid control mechanism of this invention achieves a constant flow inflection point at a water pressure of 0.1 MPa. Moving this inflection point forward allows the water flow to remain stable over a wider range of water pressures. Achieving constant flow at lower water pressures enables users to enjoy a stable and comfortable water flow under various pressure conditions, thus improving user satisfaction.

[0034] The second objective of this utility model is to provide a bathroom device, including the aforementioned constant flow noise reduction fluid control mechanism. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is an exploded view of the constant current noise reduction fluid control mechanism in a specific embodiment of this utility model;

[0037] Figure 2 This is a cross-sectional view of the constant current noise reduction fluid control mechanism in a specific embodiment of this utility model;

[0038] Figure 3 for Figure 1 Schematic diagram of the constant current housing structure;

[0039] Figure 4 for Figure 1 Schematic diagram of the medium flow rate regulating component;

[0040] Figure 5 for Figure 1 Schematic diagram of the main shell structure;

[0041] Figure 6 for Figure 1 Cross-sectional view of the noise reduction housing;

[0042] Figure 7 for Figure 1 Schematic diagram of the rectifier housing structure;

[0043] Figure 8 This is a schematic diagram illustrating the working principle of the constant current noise reduction fluid control mechanism under low-pressure working mode in a specific embodiment of this utility model.

[0044] Figure 9 This is a schematic diagram illustrating the working principle of the constant current noise reduction fluid control mechanism under high-pressure working mode in a specific embodiment of this utility model.

[0045] Figure 10 The graph shows the relationship between water pressure and flow rate between the constant flow noise reduction fluid control mechanism of this utility model and the constant flow device in the prior art.

[0046] The components include: constant flow housing 1, water inlet channel 10, limiting protrusion 11, locking surface 111, water outlet channel 12, stepped surface 121, internal thread structure 122, annular groove 13, first sealing ring 14, first through hole 15, first water outlet 16, and second water outlet 17; flow regulating component 2, guide column 20, flow regulating platform 21, radial claw 22, and flow regulating port 23; elastic component 3; main housing 4, first water passage channel 40, and countersunk hole 4. 1. External thread structure 42, external thread 43, arc-shaped concave surface 44, fourth sealing ring 45, locking nut 46; noise reduction housing 5, positioning platform 50, second water passage 51, chain-shaped side flow outlet 52, spherical sealing shell 53; second sealing ring 6; rectifier housing 7, upper part of rectifier housing 70, lower part of rectifier housing 71, honeycomb water passage 72, columnar water passage 73, arc-shaped convex surface 74; rectifier cover 8, internal thread 80; third sealing ring 9. Detailed Implementation

[0047] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0048] The following is in conjunction with the appendix Figure 1 To be continued Figure 10 The present invention will be described in detail with reference to specific embodiments:

[0049] like Figure 1-9 As shown, this utility model provides a constant flow noise reduction fluid control mechanism, including a constant flow component, which includes a constant flow housing 1, a flow regulating component 2, and an elastic component 3. In this embodiment, the elastic component 3 is a spring.

[0050] The constant flow housing 1 is provided with an inlet channel 10, a limiting protrusion 11 and an outlet channel 12 arranged in the axial direction. The limiting protrusion 11 is located between the inlet channel 10 and the outlet channel 12.

[0051] The top surface of the limiting protrusion 11 (facing the water inlet channel 10) is provided with an annular groove 13, and a first sealing ring 14 is provided in the annular groove 13; the center of the limiting protrusion 11 is provided with a first through hole 15 penetrating its axial direction; the limiting protrusion 11 is provided with a first water outlet 16 on the side near the water inlet channel 10, and a second water outlet 17 on the side near the water outlet channel 12, the first water outlet 16 connecting the annular groove 13 and the water outlet channel 12, and the second water outlet 17 connecting the first through hole 15 and the water outlet channel 12.

[0052] The flow regulating component 2 includes a guide post 20, a flow regulating platform 21 located at the top of the guide post 20, and a radial claw portion 22 located at the end of the guide post 20. The elastic member 3 is sleeved on the outside of the guide post 20. The guide post 20 passes through the first through hole 15, and the radial claw portion 22 abuts against the locking surface 111 at the bottom of the limiting protrusion 11. A dynamic gap is formed between the flow regulating platform 21 and the top surface of the limiting protrusion 11. In this embodiment, an annular flange is formed at the top of the guide post 20 in the flow regulating component 2. The annular flange contacts the inner wall of the first through hole 15, and a flow regulating port 23 that extends vertically through the annular flange is formed, creating a tooth-like structure to increase the stability of the flow regulating component 2 moving vertically within the first through hole 15.

[0053] The constant current component has two low-voltage operating modes and a high-voltage operating mode;

[0054] When the water pressure is lower than the preset threshold, the constant flow component is in low-pressure working mode. The elastic force of the elastic element 3 is greater than the water pressure, and the elastic force of the elastic element 3 will push the flow regulating element 2 upward, so that the flow regulating platform 21 and the top surface of the limiting protrusion 11 maintain a gap. After the water flows in from the inlet channel 10, it will be divided into two paths into the outlet channel 12. One path flows directly into the outlet channel 12 through the first outlet 16, and the other path flows into the outlet channel 12 sequentially through the gap between the top surface of the flow regulating platform 21 and the limiting protrusion 11, the flow regulating port 23, the first through hole 15, and the second outlet 17. In low-pressure working mode, in the first flow path, the first sealing ring 14 is only slightly deformed by the low pressure, resulting in a slight reduction in the flow area of ​​the first outlet 16. However, the second flow path supplements the flow through the dynamic gap, so that the total flow remains constant. The preset threshold in this utility model is 0.1MPa.

[0055] When the water pressure reaches or exceeds a preset threshold, the constant flow component enters a high-pressure working mode. The water pressure overcomes the elastic force of the elastic element 3, pressing the flow regulating element 2 downwards, causing the flow regulating platform 21 to fit against the top surface of the limiting protrusion 11. The dynamic gap between them becomes zero, thus cutting off the second flow path. Simultaneously, due to the increased water pressure, the first sealing ring 14 deforms, blocking part of the flow area of ​​the first outlet 16, significantly reducing the effective flow area of ​​the first outlet 16. At this time, water can only flow into the water outlet channel 12 through the first outlet 16. In the high-pressure working mode, although the flow area decreases, the high-pressure water velocity increases. According to the conservation relationship of flow rate = velocity × flow area, the total flow rate remains constant.

[0056] This invention relates to a constant flow noise reduction fluid control mechanism that can automatically adjust the flow path and flow area of ​​water under different water pressure conditions to achieve constant flow output. At low pressure, a certain flow rate is ensured by increasing the flow path (two inlets); at high pressure, the flow area is reduced (water enters only through the first outlet 16, which is partially blocked) to prevent excessive flow, thus maintaining a relatively stable flow output under different water pressure environments. Simultaneously, the dual-flow path design disperses the impact energy of the water flow, reducing cavitation noise generated by high-speed jets in a single flow path.

[0057] Furthermore, the entire constant flow assembly has a relatively simple structure, mainly consisting of a constant flow housing 1, a flow regulating component 2, and an elastic component 3, without complex electronic components or control systems. The dynamic gap between the flow regulating platform 21 and the top surface of the limiting protrusion 11 is dynamically adjusted solely by the interaction of the elastic force of the elastic component 3 and the water pressure, achieving purely mechanical constant flow. This eliminates the need for external sensors or control units, reducing the likelihood of malfunctions, improving the reliability and service life of the mechanism, and lowering maintenance costs.

[0058] Furthermore, as shown in Table 1, the experimental data indicates that the constant flow noise reduction fluid control mechanism of this invention reaches its constant flow inflection point at a water pressure of 0.1 MPa. Figure 10 As shown in curve A1, shifting the constant flow inflection point forward allows the water flow to remain stable over a wider range of water pressures. Achieving constant flow at lower water pressures allows users to enjoy a stable and comfortable water flow under various pressure conditions, increasing user satisfaction with the product.

[0059] Table 1 shows the test data of the constant current noise reduction fluid control mechanism of this utility model.

[0060]

[0061] Furthermore, in some specific embodiments, the constant current noise reduction fluid control mechanism also includes a noise reduction component to achieve noise reduction function and improve the user experience. The noise reduction component includes a main housing 4, a noise reduction housing 5, and a second sealing ring 6.

[0062] The main housing 4 has a first water passage 40 inside, a countersunk hole 41 at the top of the main housing, and an external thread structure 42 on the outer wall.

[0063] The noise reduction housing 5 forms a second water passage 51 inside, and a positioning platform 50 matching the countersunk hole 41 is provided at the top. The positioning platform 50 is installed at the countersunk hole 41 of the main housing 4 to form an axial limit; and the second water passage 51 connects the water outlet channel 12 of the constant flow housing 1 with the first water passage 40 of the main housing 4.

[0064] The second sealing ring 6 is disposed between the stepped surface 121 at the top of the water outlet channel 12 of the constant flow housing 1 and the top end face of the main housing 4; the main housing 4 is screwed to the internal thread structure 122 on the inner wall of the water outlet channel 12 of the constant flow housing 1 through the external thread structure 42 until the top ends of the main housing 4 and the noise reduction housing 5 press together to tighten the second sealing ring 6, generating radial deformation, thereby achieving a sealing and locking between the main housing 4 and the constant flow housing 1, thus preventing water from leaking from the connection part and achieving a sealing effect.

[0065] The water flowing out of the outlet channel 12 of the constant flow component first enters the second water passage 51 of the noise reduction housing 5. Since the second water passage 51 is connected to the first water passage 40, the water then flows into the first water passage 40 of the main housing 4, completing the water transport within the noise reduction component.

[0066] Specifically, the cross-sectional area of ​​the second water passage 51 inside the noise reduction housing 5 gradually decreases along the water flow direction; and multiple sets of chain-shaped side-flow outlets 52 are formed circumferentially along the side wall of the second water passage 51, the chain-shaped side-flow outlets 52 being connected to the first water passage 40; the bottom of the noise reduction housing 5 is provided with a spherical sealing shell 53. It should be noted that each set of chain-shaped side-flow outlets 52 is similar to a chain structure arranged axially along the second water passage 51, forming multiple spaced chain-shaped side-flow outlets 52 from top to bottom along its axial direction.

[0067] The cross-sectional area of ​​the second water passage 51 gradually decreases along the water flow direction, resulting in a uniform change in water flow velocity. When the water reaches the bottom of the second water passage 51, the concave arc surface design of the spherical sealing shell 53 changes the water flow direction, forming vortices or circulation. This process consumes the kinetic energy of the water and reduces turbulent kinetic energy (i.e., noise source energy). At the same time, the water flow impact and vortex motion convert some kinetic energy into heat energy, reducing fluid pressure pulsation and thus reducing noise intensity. As the water flows in the second water passage 51, some of the water flow is diverted through the chain-like side outlet 52 into the first water passage 40 of the main shell. The water flow is then discharged in layers through the chain-like side outlet 52 into the first water passage 40, reducing local flow velocity and impact noise.

[0068] In this embodiment, the chain-shaped side-flow outlet 52 is inclined so that the water flows tangentially into the first water passage 40 of the main housing 4, avoiding the water flow from vertically impacting the inner wall of the main housing 4 and reducing high-frequency impact noise caused by the impact. Furthermore, the total flow area of ​​the chain-shaped side-flow outlet 52 is ≥ 1.2 times the inlet area of ​​the second water passage 51.

[0069] Furthermore, in some specific embodiments, the constant current noise reduction fluid control mechanism further includes a rectifier assembly. The rectifier assembly includes a rectifier housing 7, a rectifier cover 8, and a third sealing ring 9.

[0070] The top of the rectifier housing 7 is built into the outlet of the first water passage 40 at the bottom of the main housing 4.

[0071] The third sealing ring 9 is sleeved on the outer wall of the rectifier housing 7 and abuts against the end face of the bottom of the main housing 4.

[0072] The rectifier cover 8 is sleeved on the outer wall of the rectifier housing 7 and located below the third sealing ring 9. The inner wall of the rectifier cover 8 is provided with an internal thread 80, which is screwed into the external thread 43 on the outer wall of the bottom end of the main housing 4. The rectifier cover 8, through the axial displacement caused by the engagement of the internal thread 80 and the external thread 43, squeezes the third sealing ring 9 to produce radial deformation, so that the inner wall of the outlet of the first water passage 40 of the rectifier housing 7 and the main housing 4 forms a dynamic seal, thereby realizing the locking and fixed connection between the rectifier housing 7 and the main housing 4.

[0073] Specifically, the rectifier housing 7 includes an upper rectifier housing 70 and a lower rectifier housing 71. The upper rectifier housing 70 has a through and regularly arranged honeycomb-shaped water passage 72, and the lower rectifier housing 71 has a columnar water passage 73, which communicates with the honeycomb-shaped water passage 72. The honeycomb-shaped water passage 72 is vertically arranged, that is, along the water flow direction in the water inlet channel 10.

[0074] When water flows out through the chain-shaped side outlet 52 of the noise-reducing shell 5 and is directed towards the perimeter of the first water passage 40 of the main shell 4, its velocity decreases, but the flow rate remains unchanged. Then, the water flows downstream along the perimeter towards the honeycomb water passage 72 of the rectifying shell 7, reducing the noise generated by the water falling vertically and directly impacting the rectifying shell 7. At the same time, the honeycomb water passage 72 divides the large water flow into multiple thin streams, reducing the velocity of each stream and the impact noise between the water flow and the channel wall. Furthermore, the partitions between adjacent honeycomb holes guide the water flow to generate tiny vortices, which consume turbulent kinetic energy through viscous friction, suppressing high-frequency noise and making the water flow more straight. Then, through the columnar water passage 73 on its straight surface, the water flows out smoothly with a more uniform velocity, thus ensuring that the water is ejected outward in a rectified state.

[0075] Therefore, when water flows through this rectifier, it can improve the concentration of the water flow and form a rectifier, preventing water splashing, thereby strengthening the impact force, making it easier to effectively wash away dirt, and saving water.

[0076] Specifically, in this embodiment, the outer wall surface of the upper part 70 of the rectifier shell is an arc-shaped convex surface 74, and correspondingly, the outlet of the first water passage 40 at the bottom of the main shell 4 is an arc-shaped concave surface 44 that matches the arc-shaped convex surface 74, which increases the contact area between the main shell 4 and the rectifier shell 7, making the connection between the two more stable.

[0077] Based on the aforementioned constant current noise reduction fluid control mechanism, this utility model also provides a bathroom device that includes the aforementioned constant current noise reduction fluid control mechanism. This bathroom device has at least all the advantages of the aforementioned constant current noise reduction fluid control mechanism, which will not be elaborated here.

[0078] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A constant flow noise reducing fluid control mechanism, characterized by, The constant flow assembly comprises a constant flow shell, a flow regulating member and an elastic member; The constant flow shell is provided with a water inlet channel, a limiting protrusion and a water outlet channel arranged in the axial direction, and the limiting protrusion is located between the water inlet channel and the water outlet channel; A ring-shaped groove is formed in the top end surface of the limiting protrusion, and a first sealing ring is arranged in the ring-shaped groove; a first through hole is arranged in the center of the limiting protrusion and penetrates the axial direction of the limiting protrusion; a first water outlet is formed in the side of the limiting protrusion close to the water inlet channel, and a second water outlet is formed in the side of the limiting protrusion close to the water outlet channel; the first water outlet is connected with the ring-shaped groove and the water outlet channel, and the second water outlet is connected with the first through hole and the water outlet channel; The flow regulating member comprises a guide column part, a flow regulating platform arranged at the top end of the guide column part, and a radial clamping jaw part arranged at the end of the guide column part; the elastic member is sleeved on the outside of the guide column part; the guide column part penetrates the first through hole, and the radial clamping jaw part abuts against the buckling surface at the bottom end of the limiting protrusion; and the dynamic gap is formed between the flow regulating platform and the top end surface of the limiting protrusion.

2. The constant flow noise reduction fluid control mechanism according to claim 1, wherein The constant flow noise reduction fluid control mechanism further comprises a noise reduction assembly; The noise reduction assembly comprises a main shell, a noise reduction shell and a second sealing ring; The inside of the main shell forms a first water passing channel, the top end of the main shell is provided with a counterbore, and the outer wall is provided with an external thread structure; The inside of the noise reduction shell forms a second water passing channel, and the top end is provided with a positioning platform matched with the counterbore; the positioning platform is abutted and mounted at the counterbore of the main shell; and the second water passing channel is connected with the water outlet channel of the constant flow shell and the first water passing channel of the main shell; The second sealing ring is arranged between the stepped surface at the top end of the water outlet channel of the constant flow shell and the top end surface of the main shell; the main shell is screwed with the internal thread structure on the inner wall of the water outlet channel of the constant flow shell through the external thread structure, until the top ends of the main shell and the noise reduction shell jointly compress the second sealing ring, so as to realize the sealing locking between the main shell and the constant flow shell.

3. The constant flow noise reduction fluid control mechanism according to claim 2, wherein The cross-sectional area of the second water passing channel in the noise reduction shell gradually decreases along the water flow direction; a plurality of chain-shaped side water outlets are arranged along the circumferential direction of the side wall of the second water passing channel; and the chain-shaped side water outlets are connected with the first water passing channel; The bottom of the noise reduction shell is provided with a spherical plugging shell.

4. The constant flow noise reduction fluid control mechanism according to claim 3, wherein The chain-shaped side water outlets are arranged in an inclined manner.

5. The constant flow noise reduction fluid control mechanism according to claim 3, wherein The total flow area of the chain-shaped side water outlets is greater than 1.2 times the inlet area of the second water passing channel.

6. The constant flow noise reduction fluid control mechanism according to claim 3, wherein The constant flow noise reduction fluid control mechanism further comprises a flow regulating assembly; The flow regulating assembly comprises a flow regulating shell, a flow regulating cover and a third sealing ring. The top end of the rectifying shell is embedded in the first water passage outlet of the bottom end of the main shell; The third sealing ring is sleeved on the outer wall of the rectifying shell and abuts against the end face of the bottom end of the main shell; The rectifying cover is sleeved on the outer wall of the rectifying shell below the third sealing ring, the inner wall of the rectifying cover is provided with internal threads, and the rectifying cover is in threaded connection with the external threads of the outer wall of the bottom end of the main shell; the rectifying cover is axially displaced by the threaded connection of the internal threads and the external threads, the third sealing ring is extruded, and the rectifying shell and the main shell are locked and fixedly connected.

7. The constant flow noise reduction fluid control mechanism according to claim 6, characterized in that: The rectifying shell comprises a rectifying shell upper part and a rectifying shell lower part, the rectifying shell upper part is provided with honeycomb-shaped water passages penetrating through and regularly arranged, and the rectifying shell lower part is provided with a columnar water passage, which is in communication with the honeycomb-shaped water passages.

8. The constant flow noise reduction fluid control mechanism according to claim 7, characterized in that: The outer wall surface of the rectifying shell upper part is an arc-shaped convex surface, and correspondingly, the first water passage outlet of the bottom end of the main shell is an arc-shaped concave surface matched with the arc-shaped convex surface.

9. The constant flow noise reduction fluid control mechanism according to claim 7, characterized in that: The honeycomb-shaped water passages are vertically arranged.

10. A bathroom equipment comprising the constant flow noise reduction fluid control mechanism according to any one of claims 1 to 9.

Images