Constant-flow noise reduction fluid control mechanism and bathroom equipment

Abstract

The invention belongs to the technical field of bathroom accessories, and particularly relates to a constant-flow noise reduction fluid control mechanism and bathroom equipment. The constant flow assembly comprises a constant flow shell, a flow adjusting piece and an elastic piece. 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] The present invention belongs to the technical field of sanitary ware, and particularly relates to a constant-flow noise-reducing fluid control mechanism and a sanitary ware device. Background Art

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

[0003] In terms of constant-flow control, many existing constant-flow structure products on the market show relatively significant limitations. Generally, 0.15 MPa water pressure is taken as a key inflection point. As shown by curve A2 in Figure 10 When the water pressure is lower than 0.15 MPa, the flow rate and pressure show an upward-sloping linear relationship, that is, the flow rate increases significantly as the pressure increases; when the water pressure reaches or exceeds 0.15 MPa, the flow rate and pressure gradually approach a linear relationship close to a horizontal line, and the flow rate basically remains constant. For example, the constant-flow device disclosed in the patent application No. CN201210126817.4 has achieved the basic goal of making the water volume constant in different water pressure environments, but there is still much room for improvement in the expansion of the constant-flow function. Especially in the low-water-pressure range, effective constant-flow control cannot be achieved, and it is difficult to meet the strict requirements for constant flow in scenarios such as insufficient water supply pressure in old buildings and unstable water supply pressure in remote areas. This limitation not only affects the user experience in low-water-pressure environments, such as the water flow from the faucet being unstable, but may also damage some devices that rely on stable water flow, increasing the equipment maintenance cost and the risk of failure. In addition, this constant-flow device only has a constant-flow function, and the noise reduction and rectification effects are far from ideal.

[0004] Based on this, a novel constant-flow noise-reducing fluid control mechanism and a sanitary ware device are provided in the present invention to overcome the above defects. Summary of the Invention

[0005] An object of the present invention is to provide a constant-flow noise-reducing fluid control mechanism. The structure of this constant-flow noise-reducing fluid control mechanism is relatively simple. It only uses the interaction between the elastic force of the elastic member and the water pressure to realize the self-adjustment of the dynamic gap between the flow rate adjustment table and the top surface of the limit protrusion, achieving pure mechanical constant flow without external sensors or control units, reducing the possibility of failure, improving the reliability and service life of the mechanism, and reducing the maintenance cost. At the same time, the constant-flow inflection point of this constant-flow noise-reducing fluid control mechanism is 0.1 MPa water pressure, which advances the constant-flow inflection point of the product, enabling the water flow to remain stable within a wider range of water pressures.

[0006] The present invention adopts the following technical solution: a constant-current noise-reducing fluid control mechanism, including a constant-current component, and the constant-current component includes a constant-current housing, a flow regulator, and an elastic member;

[0007] An inlet channel, a limiting protrusion, and an outlet channel are arranged along the axial direction inside the constant-current housing, and the limiting protrusion is located between the inlet channel and the outlet channel;

[0008] A ring groove is formed on the top surface of the limiting protrusion, and a first sealing ring is arranged in the ring groove; a first through hole penetrating its axis is arranged at the center of the limiting protrusion; a first water outlet is arranged on one side of the limiting protrusion close to the inlet channel, and a second water outlet is arranged on one side close to the outlet channel. The first water outlet communicates the ring groove with the outlet channel, and the second water outlet communicates the first through hole with the outlet channel;

[0009] The flow regulator includes a guiding column part, a flow regulation table arranged at the top end of the guiding column part, and a radial claw part arranged at the end of the guiding column part. The elastic member is sleeved outside the guiding column part. The guiding column part passes through the first through hole, and the radial claw part abuts against the buckling surface at the bottom end of the limiting protrusion. A dynamic gap is formed between the flow regulation table and the top surface of the limiting protrusion.

[0010] Further, the constant-current component has two low-pressure working modes and a high-pressure working mode;

[0011] When the water pressure is lower than the preset threshold, the constant-current component is in the low-pressure working mode. The elastic force of the elastic member keeps a gap between the flow regulation table and the top surface of the limiting protrusion. The water flow is divided into two paths and enters the outlet channel. One path flows directly through the first water outlet, and the other path flows through the gap, the first through hole, and the second water outlet in sequence;

[0012] When the water pressure reaches or exceeds the preset threshold, the constant-current component is in the high-pressure working mode. The water pressure overcomes the elastic force of the elastic member to make the flow regulation table fit with the top surface of the limiting protrusion, and the first sealing ring deforms to reduce the flow area of the first water outlet. The water flow only enters the outlet channel through the first water outlet.

[0013] Further, the constant-current noise-reducing fluid control mechanism further includes a noise-reducing component;

[0014] The noise-reducing component includes a main housing, a noise-reducing housing, and a second sealing ring;

[0015] A first water passing channel is formed inside the main housing. A counterbore is arranged at the top end of the main housing, and an external thread structure is arranged on the outer wall;

[0016] A second water passage is formed inside the noise reduction housing, and a positioning platform matching the counterbore is provided at the top. The positioning platform is abutted and installed at the counterbore of the main housing; and the second water passage communicates the water outlet passage of the constant flow housing with the first water passage of the main housing.

[0017] The second sealing ring is arranged between the stepped surface at the top end of the water outlet passage of the constant flow housing and the top end face of the main housing; the main housing is screwed to the inner wall of the water outlet passage of the constant flow housing through an external thread structure until the top ends of the main housing and the noise reduction housing jointly compress the second sealing ring to realize the sealing and locking between the main housing and the constant flow housing.

[0018] Further, the cross-sectional area of the second water passage inside the noise reduction housing gradually decreases along the water flow direction; and a plurality of groups of chain-shaped side water outlet openings are arranged circumferentially along the side wall of the second water passage, and the chain-shaped side water outlet openings are communicated with the first water passage.

[0019] A spherical plug housing is provided at the bottom of the noise reduction housing.

[0020] Further, the chain-shaped side water outlet openings are inclined.

[0021] Further, the total flow-through area of the chain-shaped side water outlet openings ≥ 1.2 times the inlet area of the second water passage.

[0022] Further, the constant flow noise reduction fluid control mechanism further includes a rectifying assembly.

[0023] The rectifying assembly includes a rectifying housing, a rectifying cover and a third sealing ring.

[0024] The top end of the rectifying housing is placed inside the outlet of the first water passage at the bottom end of the main housing.

[0025] The third sealing ring is sleeved on the outer wall of the rectifying housing and abuts against the end face at the bottom end of the main housing.

[0026] The rectifying cover is sleeved on the outer wall of the rectifying housing and is located below the third sealing ring. The inner wall of the rectifying cover is provided with an internal thread and is screwed and matched with the external thread on the outer wall of the bottom end of the main housing; the rectifying cover axially displaces through the screwing of the internal thread and the external thread to squeeze the third sealing ring to realize the locking and fixed connection between the rectifying housing and the main housing.

[0027] Further, the rectifying housing includes an upper rectifying shell and a lower rectifying shell. The upper rectifying shell is provided with honeycomb-shaped water passages that are penetrated and regularly arranged, and the lower rectifying shell has a columnar water passage, and the columnar water passage is communicated with the honeycomb-shaped water passages.

[0028] Furthermore, the outer wall surface of the upper part of the rectifying shell is an arc convex surface. Correspondingly, the first water passage outlet at the bottom end of the main shell is an arc concave surface that matches the arc convex surface.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] The general working principle of the constant-flow noise-reducing fluid control mechanism in the present invention:

[0031] When the water pressure is lower than the preset threshold, the constant-flow component is in the low-pressure working mode. The elastic force of the elastic member is greater than the water pressure. The elastic force of the elastic member will push the flow regulating member upward, so that a gap is maintained between the flow regulating table and the top surface of the limit protrusion. After the water flow enters from the water inlet passage, it will be divided into two paths to enter the water outlet passage. One path directly flows into the water outlet passage through the first water outlet, and the other path flows into the water outlet passage through the gap between the flow regulating table and the top surface of the limit protrusion, the first through hole and the second water outlet in sequence. In the low-pressure working mode, in the first flow path, the first sealing ring is only slightly deformed under the action of low pressure, resulting in a slightly reduced flow area of the first water outlet. However, the second flow path supplements the flow through the dynamic gap, so that the total flow remains constant.

[0032] When the water pressure reaches or exceeds the preset threshold, the constant-flow component is in the high-pressure working mode. The water pressure overcomes the elastic force of the elastic member and presses the flow regulating member downward, so that the flow regulating table fits with the top surface of the limit protrusion, and the dynamic gap between the two becomes zero, so that the second flow path is cut off. At the same time, due to the increase in water pressure, the first sealing ring deforms, and its deformation blocks a part of the flow area of the first water outlet, so that the effective flow area of the first water outlet is significantly reduced, that is, the deformation of the first sealing ring reduces the flow area of the first water outlet. At this time, the water flow can only flow into the water outlet passage through the first water outlet. In the high-pressure working mode, although the flow area is reduced, the high-pressure water flow velocity increases. According to the conservation relationship of flow rate = flow velocity × flow area, the total flow rate remains constant.

[0033] In the constant-flow noise-reducing fluid control mechanism of the present invention, under different water pressure conditions, it can automatically adjust the flow path and flow area of the water flow, so as to achieve constant-flow output. At low pressure, a certain flow rate is ensured by increasing the flow path of the water flow (two-way water inlet); at high pressure, the flow area is reduced (only water inlet through the first water outlet and part of the first water outlet is blocked), avoiding excessive flow rate, so that a relatively stable flow rate output can be maintained in different water pressure environments. At the same time, the double-flow path design is adopted to disperse the water flow impact energy and reduce the cavitation noise generated by the high-speed jet of a single flow path.

[0034] In addition, the structure of the entire constant current component is relatively simple. It mainly consists of a constant current housing, a flow regulating member, and an elastic member, without complex electronic components or control systems. Only by utilizing the interaction between the elastic force of the elastic member and the water pressure can the dynamic gap between the flow regulating platform and the top surface of the limiting protrusion be self-regulated, achieving pure mechanical constant current. Without the need for external sensors or control units, the possibility of failures is reduced, the reliability and service life of the mechanism are improved, and the maintenance cost is lowered.

[0035] In addition, as can be seen from the experimental data shown in Table 1, in the present invention, the constant current inflection point of this constant current and noise reduction fluid control mechanism is at a water pressure of 0.1 MPa. Shifting the constant current inflection point of the product forward can enable the water flow to remain stable within a wider water pressure range. Constant current can be achieved at a lower water pressure, allowing users to enjoy stable and comfortable water flow under various water pressure conditions, thereby improving user satisfaction with the product.

[0036] The second object of the present invention is a sanitary ware device, including the above-mentioned constant current and noise reduction fluid control mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0038] Figure 1 It is an exploded view of the constant current and noise reduction fluid control mechanism in a specific embodiment of the present invention;

[0039] Figure 2 It is a cross-sectional view of the constant current and noise reduction fluid control mechanism in a specific embodiment of the present invention;

[0040] Figure 3 It is Figure 1 a schematic structural view of the constant current housing in

[0041] Figure 4 It is Figure 1 a schematic structural view of the flow regulating member in

[0042] Figure 5 It is Figure 1 a schematic structural view of the main housing in

[0043] Figure 6 It is Figure 1 a cross-sectional view of the noise reduction housing in

[0044] Figure 7 It is Figure 1 a schematic structural view of the rectifying housing in

[0045] Figure 8 This is the working schematic diagram of the constant-current noise-reducing fluid control mechanism in the low-pressure working mode in the specific embodiment of the present invention;

[0046] Figure 9 This is the working schematic diagram of the constant-current noise-reducing fluid control mechanism in the high-pressure working mode in the specific embodiment of the present invention;

[0047] Figure 10 This is the curve graph of the water pressure and flow rate relationship between the constant-current noise-reducing fluid control mechanism in the present invention and the constant-current device in the prior art;

[0048] Wherein: constant-current housing 1, water inlet channel 10, limit protrusion 11, buckling surface 111, water outlet channel 12, step surface 121, internal thread structure 122, annular groove 13, first sealing ring 14, first through hole 15, first water outlet 16, second water outlet 17; flow rate adjusting member 2, guiding column part 20, flow rate adjusting table 21, radial claw part 22, flow rate adjusting port 23; elastic member 3; main housing 4, first water passing channel 40, counterbore 41, external thread structure 42, external thread 43, arc-shaped concave surface 44; noise-reducing housing 5, positioning table 50, second water passing channel 51, chain-shaped side water outlet 52, spherical plug housing 53; second sealing ring 6; rectifying housing 7, upper rectifying housing part 70, lower rectifying housing part 71, honeycomb-shaped water passing channel 72, columnar water passing channel 73, arc-shaped convex surface 74; rectifying cover 8, internal thread 80; third sealing ring 9. Specific embodiments

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0050] Next, in conjunction with the attached Figure 1 to the attached Figure 10 and specific embodiments, the present invention will be described in detail:

[0051] As Figures 1 - 9 shown, the present invention provides a constant-current noise-reducing fluid control mechanism, including a constant-current assembly, and the constant-current assembly includes a constant-current housing 1, a flow rate adjusting member 2 and an elastic member 3. In this embodiment, the elastic member 3 is a spring.

[0052] An axial water inlet channel 10, a limit protrusion 11 and a water outlet channel 12 are arranged in the constant-current housing 1, and the limit protrusion 11 is located between the water inlet channel 10 and the water outlet channel 12.

[0053] The top surface of the limiting protrusion 11 (towards the water inlet channel 10) is provided with an annular groove 13, and a first sealing ring 14 is arranged in the annular groove 13; a first through hole 15 penetrating its axis is arranged at the center of the limiting protrusion 11; a first water outlet 16 is arranged on one side of the limiting protrusion 11 close to the water inlet channel 10, and a second water outlet 17 is arranged on one side close to the water outlet channel 12. The first water outlet 16 communicates the annular groove 13 with the water outlet channel 12, and the second water outlet 17 communicates the first through hole 15 with the water outlet channel 12.

[0054] The flow regulating member 2 includes a guiding column portion 20, a flow regulating table 21 arranged at the top end of the guiding column portion 20, and a radial claw portion 22 arranged at the end of the guiding column portion 20. The elastic member 3 is sleeved outside the guiding column portion 20. The guiding column portion 20 passes through the first through hole 15, and the radial claw portion 22 abuts against the buckling surface 111 at the bottom end of the limiting protrusion 11. A dynamic gap is formed between the flow regulating table 21 and the top surface of the limiting protrusion 11. In this embodiment, an annular flange is formed at the top end of the guiding column portion 20 in the flow regulating member 2. The annular flange contacts the inner wall of the first through hole 15, and a flow regulating port 23 penetrating up and down is arranged on the annular flange, forming a tooth-like structure, which increases the stability of the flow regulating member 2 moving up and down in the first through hole 15.

[0055] The constant flow component has two low-pressure working modes and a high-pressure working mode;

[0056] When the water pressure is lower than the preset threshold value, the constant flow component is in the low-pressure working mode. The elastic force of the elastic member 3 is greater than the water pressure. The elastic force of the elastic member 3 will push the flow regulating member 2 upward to keep a gap between the flow regulating table 21 and the top surface of the limiting protrusion 11. After the water flow flows in from the water inlet channel 10, it will be divided into two paths to enter the water outlet channel 12. One path directly flows into the water outlet channel 12 through the first water outlet 16, and the other path flows into the water outlet channel 12 through the gap between the flow regulating table 21 and the top surface of the limiting protrusion 11, the flow regulating port 23, the first through hole 15 and the second water outlet 17 in sequence. In the low-pressure working mode, in the first flow path, the first sealing ring 14 is only slightly deformed under the action of the low pressure, resulting in a slightly reduced flow area of the first water outlet 16, but the second flow path supplements the flow through the dynamic gap, so that the total flow remains constant. In the present invention, the preset threshold value is 0.1 MPa.

[0057] When the water pressure reaches or exceeds the preset threshold, the constant flow component is in the high-pressure working mode. The water pressure overcomes the elastic force of the elastic member 3 and presses the flow regulating member 2 downward, causing the flow regulating table 21 to fit against the top surface of the limit projection 11, and the dynamic gap between the two becomes zero, so that the second flow path is cut off. At the same time, due to the increase in water pressure, the first sealing ring 14 deforms, and its deformation blocks a part of the flow area of the first water outlet 16, so that the effective flow area of the first water outlet 16 is significantly reduced, that is, the deformation of the first sealing ring 14 reduces the flow area of the first water outlet 16. At this time, the water flow can only flow into the water outlet channel 12 through the first water outlet 16. In the high-pressure working mode, although the flow area is reduced, the high-pressure water flow velocity increases. According to the conservation relationship of flow rate = flow velocity × flow area, the total flow rate remains constant.

[0058] In the constant flow and noise reduction fluid control mechanism of the present invention, under different water pressure conditions, the flow path and flow area of the water flow can be automatically adjusted, so as to achieve constant flow output. At low pressure, a certain flow rate is ensured by increasing the flow path of the water flow (two-way water inlet); at high pressure, the flow area is reduced (only water inlet through the first water outlet 16 and part of the first water outlet 16 is blocked) to avoid excessive flow rate, so that a relatively stable flow rate output can be maintained in different water pressure environments. At the same time, the double-flow path design is adopted to disperse the water flow impact energy and reduce the cavitation noise generated by the high-speed jet of a single flow path.

[0059] In addition, the structure of the entire constant flow component is relatively simple, mainly composed of a constant flow housing 1, a flow regulating member 2 and an elastic member 3, without complex electronic components or control systems. Only by using the interaction between the elastic force of the elastic member 3 and the water pressure, the dynamic gap between the flow regulating table 21 and the top surface of the limit projection 11 is self-adjusted, realizing pure mechanical constant flow, without external sensors or control units, reducing the possibility of failures, improving the reliability and service life of the mechanism, and reducing the maintenance cost.

[0060] In addition, through the experimental data as shown in Table 1, it can be seen that the constant flow and noise reduction fluid control mechanism in the present invention has a constant flow inflection point when the water pressure is 0.1 MPa, as Figure 10 shown by curve A1 in the figure. Pushing the constant flow inflection point of the product forward can make the water flow stable in a wider water pressure range. Constant flow can be achieved at a lower water pressure, enabling users to enjoy stable and comfortable water flow under various water pressure conditions, and improving user satisfaction with the product.

[0061] Table 1 shows the test experimental data of the constant flow and noise reduction fluid control mechanism in the present invention

[0062]

[0063] Further, in some specific embodiments, the constant current noise reduction fluid control mechanism further includes a noise reduction component to achieve a noise reduction function and a better experience. The noise reduction component includes a main housing 4, a noise reduction housing 5, and a second sealing ring 6.

[0064] A first water passage 40 is formed inside the main housing 4. A counterbore 41 is provided at the top end of the main housing, and an external thread structure 42 is provided on the outer wall.

[0065] A second water passage 51 is formed inside the noise reduction housing 5. A positioning table 50 matching the counterbore 41 is provided at the top end. The positioning table 50 is abutted and installed at the counterbore 41 of the main housing 4 to form an axial limit. And the second water passage 51 communicates the water outlet passage 12 of the constant current housing 1 with the first water passage 40 of the main housing 4.

[0066] The second sealing ring 6 is provided between the step surface 121 at the top end of the water outlet passage 12 of the constant current housing 1 and the top end face of the main housing 4. The main housing 4 is screwed with the internal thread structure 122 on the inner wall of the water outlet passage 12 of the constant current housing 1 through the external thread structure 42 until the top ends of the main housing 4 and the noise reduction housing 5 jointly press the second sealing ring 6 to generate a radial deformation, realizing the sealing and locking between the main housing 4 and the constant current housing 1, thereby preventing water flow from leaking from the connection part and achieving a sealing effect.

[0067] The water flow flowing out of the water outlet passage 12 of the constant current component first enters the second water passage 51 of the noise reduction housing 5. Since the second water passage 51 communicates with the first water passage 40, the water flow will then flow into the first water passage 40 of the main housing 4 to complete the conveyance of the water flow within the noise reduction component.

[0068] 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 a plurality of groups of chain-shaped side water outlet ports 52 are circumferentially formed on the side wall of the second water passage 51. The chain-shaped side water outlet ports 52 communicate with the first water passage 40. A spherical plug housing 53 is provided at the bottom of the noise reduction housing 5. It should be noted that each group of chain-shaped side water outlet ports 52 is similar to a chain structure axially arranged along the second water passage 51, and a plurality of spaced chain-shaped side water outlet ports 52 are formed from top to bottom along its axis.

[0069] The cross-sectional area of ​​the second water passage 51 gradually decreases along the direction of the water flow, so that the water flow velocity changes evenly. When the water flow reaches the bottom of the second water passage 51, the concave arc surface design of the spherical sealing shell 53 will change the direction of the water flow, forming an eddy current or a ring current. This process can consume the kinetic energy of the water flow and reduce the turbulent kinetic energy (i.e., the energy of the noise source); at the same time, the impact of the water flow and the eddy current movement will convert part of the kinetic energy into heat energy, reduce the fluid pressure pulsation, and thus reduce the noise intensity. As the water flows in the second water passage 51, part of the water flow will be diverted to the first water passage 40 of the main shell through the chain-shaped side flow outlet 52, and the water flow will be discharged to the first water passage 40 in layers through the chain-shaped side flow outlet 52, reducing the local flow velocity and impact noise.

[0070] In this embodiment, the chain-shaped side flow outlets 52 are arranged obliquely, so that the water flows into the first water passage 40 of the main housing 4 along the tangential direction, avoiding the water flow from vertically impacting the inner wall of the main housing 4, and reducing the high-frequency impact noise generated by the impact. And the total flow area of ​​the chain-shaped side flow outlets 52 is ≥ 1.2 times the inlet area of ​​the second water passage 51.

[0071] Furthermore, in some specific embodiments, the constant flow noise reduction fluid control mechanism further includes a rectification assembly. The rectification assembly includes a rectification housing 7 , a rectification cover 8 and a third sealing ring 9 .

[0072] The top end of the rectifier housing 7 is built into the outlet of the first water passage 40 at the bottom end of the main housing 4 .

[0073] The third sealing ring 9 is sleeved on the outer wall of the rectification housing 7 and abuts against the end surface of the bottom end of the main housing 4 .

[0074] The fairing cover 8 is sleeved on the outer wall of the fairing shell 7 and is located below the third sealing ring 9. The inner wall of the fairing cover 8 is provided with an internal thread 80, which is screwed together with the external thread 43 on the outer wall of the bottom end of the main shell 4; the fairing cover 8 is axially displaced by the screwing of the internal thread 80 and the external thread 43, squeezing the third sealing ring 9 to produce radial deformation, so that the fairing shell 7 and the inner wall of the outlet of the first water flow channel 40 of the main shell 4 form a dynamic seal, thereby realizing a locking and fixed connection between the fairing shell 7 and the main shell 4.

[0075] Specifically, the fairing housing 7 includes a fairing housing upper portion 70 and a fairing housing lower portion 71, wherein the fairing housing upper portion 70 is provided with a honeycomb water passage 72 that is connected and regularly arranged, and the fairing housing lower portion 71 has a columnar water passage 73, and the columnar water passage 73 is connected to the honeycomb water passage 72. The honeycomb water passage 72 is vertically arranged, that is, arranged along the water flow direction in the water inlet channel 10.

[0076] When the water flows out from the chain-shaped side water outlet 52 of the noise reduction housing 5 and shoots towards the circumferential surface of the first water passage 40 of the main housing 4, its flow velocity has decreased at this time, but the flow rate remains unchanged. Then the water flows downstream along the circumferential surface towards the honeycomb-shaped water passage 72 of the rectifying housing 7, reducing the noise generated by the water directly hitting the rectifying housing 7 when falling vertically. At the same time, the honeycomb-shaped water passage 72 divides the large stream of water into multiple small streams, reducing the flow velocity of a single stream, reducing the impact noise between the water flow and the channel wall surface, and the partition piers between adjacent honeycomb holes guide the water flow to generate small vortices, consuming turbulent kinetic energy through viscous friction, suppressing high-frequency noise, making the water flow out more smoothly, and then through the columnar water passage 73 on its straight surface, enabling the water to flow out stably and the flow velocity to be more uniform, thus ensuring that the water flow forms a rectified state and sprays outwards.

[0077] Therefore, when the water flow passes through this rectifying assembly, it can improve the water flow concentration to form rectification, prevent the splashing of the water flow, thereby enhancing the impact force, making it easier to effectively wash away dirt, and saving water.

[0078] Specifically, in this embodiment, the outer wall surface of the upper part 70 of the rectifying housing is an arc convex surface 74. Correspondingly, the outlet of the first water passage 40 at the bottom end of the main housing 4 is an arc concave surface 44 that matches the arc convex surface 74, increasing the contact area between the main housing 4 and the rectifying housing 7 and making the connection between the two more stable.

[0079] Based on the above constant-flow noise reduction fluid control mechanism, the present invention also provides a sanitary ware device, including the above constant-flow noise reduction fluid control mechanism. This sanitary ware device at least has all the advantages of the above constant-flow noise reduction fluid control mechanism, which will not be elaborated here.

[0080] The above has further described the present invention with the help of specific embodiments. However, it should be understood that this specific description should not be construed as a limitation on the essence and scope of the present invention. Various modifications made by those of ordinary skill in the art to the above embodiments after reading this specification all fall within the scope protected by the present invention.

Claims

1. A constant flow noise reduction fluid control mechanism, characterized in that: It includes a constant current component, which includes a constant current housing, a flow regulating member and an elastic member; The constant current housing 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; An annular groove is provided on the top surface of the limiting protrusion, and a first sealing ring is provided in the annular groove; a first through hole is provided in the center of the limiting protrusion and runs through the limiting protrusion in an axial direction; a first water outlet is provided on the side of the limiting protrusion close to the water inlet channel, and a second water outlet is provided on the side close to the water outlet channel, the first water outlet connects the annular groove and the water outlet channel, and the second water outlet connects the first through hole and the water outlet channel; The flow regulating member includes a guide column portion, a flow regulating platform arranged at the top end of the guide column portion, and a radial claw portion arranged at the end of the guide column portion. The elastic member is sleeved on the outside of the guide column portion. The guide column portion passes through the first through hole, and the radial claw portion abuts against the buckling surface at the bottom end of the limiting protrusion, forming a dynamic gap 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, characterized in that: The constant current component has two low-voltage working modes and a high-voltage working mode; When the water pressure is lower than the preset threshold, the constant current component is in a low-pressure working mode, the elastic force of the elastic member keeps a gap between the flow regulating platform and the top surface of the limiting protrusion, and the water flows into the water outlet channel in two ways, one way flows directly through the first water outlet, and the other way flows in through the gap, the first through hole, and the second water outlet in sequence; When the water pressure reaches or exceeds the preset threshold, the constant current component is in a high-pressure working mode, the water pressure overcomes the elastic force of the elastic part to make the flow regulating platform fit with the top surface of the limiting protrusion, and the first sealing ring is deformed to reduce the flow area of ​​the first water outlet, and the water flows into the water outlet channel only through the first water outlet.

3. The constant flow noise reduction fluid control mechanism according to claim 1, characterized in that: The constant flow noise reduction fluid control mechanism also includes a noise reduction component; The noise reduction assembly includes a main shell, a noise reduction shell and a second sealing ring; A first water passage is formed inside the main shell, a countersunk hole is provided at the top of the main shell, and an external thread structure is provided on the outer wall; A second water passage is formed inside the noise reduction housing, and a positioning platform matching the countersunk hole is provided at the top, and the positioning platform is abutted and installed at the countersunk hole of the main housing; and the second water passage communicates with the water outlet channel of the constant flow housing and the first water passage of the main housing; The second sealing ring is arranged between the step 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 an external thread structure until the main housing and the top of the noise reduction housing jointly press the second sealing ring to achieve sealing and locking between the main housing and the constant flow housing.

4. The constant flow noise reduction fluid control mechanism according to claim 3, characterized in that: The cross-sectional area of ​​the second water passage inside the noise reduction housing gradually decreases along the water flow direction; and a plurality of chain-shaped side flow outlets are provided along the circumference of the side wall of the second water passage, and the chain-shaped side flow outlets are connected to the first water passage; A spherical sealing shell is provided at the bottom of the noise reduction shell.

5. The constant flow noise reduction fluid control mechanism according to claim 4, characterized in that: The chain-shaped side flow water outlet is arranged obliquely.

6. The constant flow noise reduction fluid control mechanism according to claim 4, characterized in that: The total flow area of ​​the chain-shaped side flow outlets is ≥ 1.2 times the inlet area of ​​the second water passage.

7. The constant flow noise reduction fluid control mechanism according to claim 4, characterized in that: The constant flow noise reduction fluid control mechanism also includes a rectification component; The rectification assembly comprises a rectification housing, a rectification cover and a third sealing ring; The top end of the rectifier housing is built into the outlet of the first water passage at the bottom end of the main housing; The third sealing ring is sleeved on the outer wall of the rectifier housing and abuts against the end surface of the bottom end of the main housing; The fairing cover is sleeved on the outer wall of the fairing shell and is located below the third sealing ring. The inner wall of the fairing cover is provided with an internal thread, which is screwed together with the external thread of the outer wall of the bottom end of the main shell. The fairing cover is axially displaced by the screwing of the internal thread and the external thread to squeeze the third sealing ring, thereby realizing a locking and fixed connection between the fairing shell and the main shell.

8. The constant flow noise reduction fluid control mechanism according to claim 7, characterized in that: The fairing shell comprises a fairing shell upper part and a fairing shell lower part, wherein the fairing shell upper part is provided with a through and regularly arranged honeycomb water passage, and the fairing shell lower part is provided with a columnar water passage, and the columnar water passage is connected with the honeycomb water passage.

9. The constant flow noise reduction fluid control mechanism according to claim 8, characterized in that: The outer wall surface of the upper part of the fairing 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 matching the arc-shaped convex surface.

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

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