A water outlet adjusting mechanism, a shower head and an adjusting method

Abstract

This invention relates to the field of flow regulation technology, and discloses a water outlet regulating mechanism, a shower head, and a regulating method, which can meet the needs of precise fine-tuning at small openings and rapid flow increase at large openings. The invention includes a housing with a first inner cavity; an regulating member slidably disposed in the first inner cavity, the regulating member having a second inner cavity, the inner wall of the second inner cavity having multiple circumferentially arranged flow grooves, the flow grooves extending from left to right and the starting positions of the multiple flow grooves shifting to the right sequentially; and a flow pipe disposed within the second inner cavity and axially sliding relative to the regulating member, the flow pipe including, from left to right, a first flow section, a intercepting section, and a second flow section, both of which are conductive; the intercepting section abuts against the inner wall of the second inner cavity, and the intercepting section can block the fluid passage between the first and second flow sections; when the regulating member slides axially, the intercepting section can pass through the flow grooves, causing a change in the conductive area between the first and second flow sections.

Description

Technical Field

[0001] This invention relates to the field of flow regulation technology, and in particular to a water outlet regulating mechanism, a shower head, and a regulating method. Background Technology

[0002] Currently, the mainstream method in the bathroom industry is to use rotary valve cores to regulate flow. This type of structure changes the flow channel area by rotating the valve core, but it has many inherent defects in practical applications: First, the linearity of flow regulation is poor, and the flow is prone to sudden increases in small opening areas, making it impossible to achieve precise fine-tuning and difficult to adapt to fine flow control scenarios such as shower temperature adjustment; Second, the structure is complex and the size is relatively large, making it unsuitable for integrated designs with limited installation space, such as handheld showers; Third, the rotational friction is prone to wear on the sealing surface, and long-term use can easily lead to internal leakage, jamming, and short service life.

[0003] The few existing linear sliding adjustment schemes mostly adopt a single flow channel or a multi-flow channel design that opens simultaneously. They still cannot meet the needs of precise fine adjustment at small openings and rapid flow increase at large openings. At the same time, they generally have problems such as insufficient guidance, easy radial wear, and poor operational stability, which cannot meet the actual usage requirements of bathroom water outlet equipment. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a water outlet adjustment mechanism that can meet the needs of both precise fine-tuning at small openings and rapid flow increase at large openings.

[0005] The present invention also proposes a shower head having the above-mentioned water outlet adjustment mechanism and an adjustment method thereof.

[0006] On one hand, the water outlet regulating mechanism according to an embodiment of the present invention includes: The shell has a first inner cavity; An adjusting member is slidably disposed in a first inner cavity. The adjusting member has a second inner cavity. The inner wall of the second inner cavity is provided with a plurality of flow grooves in a circumferential direction. The flow grooves extend from left to right and the starting positions of the plurality of flow grooves are shifted to the right one by one. A flow channel is provided in the second inner cavity and can slide axially relative to the adjusting member. The flow channel includes a first flow section, a choke section and a second flow section from left to right. Both the first flow section and the second flow section are open. The choke section can abut against the inner wall of the second inner cavity and can block the fluid passage between the first flow section and the second flow section. When the adjusting member slides axially, the intercepting part can pass through the flow groove, causing the conduction area between the first flow part and the second flow part to change.

[0007] According to some embodiments of the present invention, the width of the flow channel is the same or gradually increases from the first flow section to the second flow section.

[0008] According to some embodiments of the present invention, the intercepting portion is provided with a first sealing ring, which is capable of abutting against the inner wall of the second inner cavity.

[0009] According to some embodiments of the present invention, the first flow section is provided with a first channel and a first water inlet, and the second flow section is provided with a second channel and a second water inlet. Both the first channel and the second channel are conductive structures, and the fluid can be guided through the flow channel formed by the second channel, the second water inlet, the flow groove, the first water inlet, and the first channel.

[0010] According to some embodiments of the present invention, the flow pipeline is provided with a second sealing ring and a third sealing ring that can abut against the inner wall of the second inner cavity. The second sealing ring is located on the left side of the first water inlet, the third sealing ring is located on the right side of the second water inlet, and the first sealing ring is located in the middle position between the second sealing ring and the third sealing ring.

[0011] According to some embodiments of the present invention, a driving member is further included, the driving member being used to drive the adjusting member to slide along the first inner cavity, the housing having a through hole, a portion of the structure of the driving member being disposed outside the housing, and the driving member being inserted into the adjusting member through the through hole.

[0012] According to some embodiments of the present invention, the flow pipeline is fixedly disposed on the housing, the flow pipeline is provided with a sliding groove, and the adjusting member is sleeved outside the sliding groove and slides along the sliding groove.

[0013] According to some embodiments of the present invention, one of the housing and the adjusting member is provided with a guide groove and the other is provided with a guide block, wherein the guide block and the guide groove are both extended axially and cooperate with each other.

[0014] The embodiments of the present invention have at least the following beneficial effects: Significantly improved flow regulation performance: Through the design of multiple flow channels that deflect rightward at the starting position, non-linear stepped flow regulation is achieved. The small opening range can be finely and smoothly adjusted, avoiding the problem of sudden flow increase in traditional valve cores, and is suitable for fine flow control scenarios such as shower head temperature adjustment. In the large opening range, multiple channels are connected in sequence, and the flow rate is rapidly increased to meet the demand for large flow water output. The entire stroke is stepless, without lag or sudden change.

[0015] Compact structure and strong adaptability: It adopts a coaxial nested layout of shell-adjustment component-flow pipeline, and the core components are highly integrated. Its volume is much smaller than that of traditional rotary valve core. It can be directly embedded in water outlet equipment with narrow installation space such as shower head and faucet, and has extremely strong adaptability.

[0016] Stable operation and long service life: The core adjustment action is axial linear sliding, without the rotational shear wear of traditional rotary valve cores, the wear rate of mating surfaces is greatly reduced, and long-term use is less prone to jamming and uneven wear; the throttling part fits snugly against the inner wall of the cavity to achieve reliable shut-off, with no risk of internal leakage, and the service life is significantly improved.

[0017] Smooth and convenient operation: Axial sliding adjustment does not require overcoming the friction torque of the rotary seal, resulting in low opening and closing resistance. The adjustment process is smooth and stable throughout, and can be easily operated with one hand, perfectly adapting to the high-frequency use scenarios of bathroom water outlet equipment.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the overall structure of the regulating valve according to an embodiment of the present invention; Figure 2 This is a cross-sectional structural diagram of the regulating valve according to an embodiment of the present invention, wherein the valve is in a closed state; Figure 3 This is a schematic diagram of the overall structure of the regulating valve according to an embodiment of the present invention, wherein the state is the ON state; Figure 4 This is a schematic diagram of the flow pipeline structure according to an embodiment of the present invention; Figure 5 This is a schematic cross-sectional view of the flow pipeline according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the adjusting component according to an embodiment of the present invention; Figure 7 This is a cross-sectional structural diagram of the adjusting component according to an embodiment of the present invention; Figure label: Casing 100; Adjusting component 200, flow channel 210; The components include: a flow pipe 300, a first flow section 310, a first channel 311, a first water inlet 312, a second sealing ring 313, a flow interception section 320, a first sealing ring 321, a second flow section 330, a second channel 331, a second water inlet 332, a third sealing ring 333, and a sliding groove 340. Drive component 400. Detailed Implementation

[0020] The following will describe several embodiments of the present invention, including embodiments corresponding to the accompanying drawings. It should be understood that the drawings are used to assist in understanding the technical features and technical solutions of the present invention, and should not be construed as limiting the scope of protection of the present invention.

[0021] The following will provide a clear and complete description of the concept, specific structure, and technical effects of the present invention in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of the present invention. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0022] It should be noted that, unless otherwise explicitly defined, when a feature is referred to as "fixed," "connected," or "installed" on another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. The terms "fixed," "connected," and "installed" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0023] It should be noted that the descriptions of orientations or positional relationships indicated by terms such as up, down, left, right, top, bottom, front, back, inside, and outside used in this invention are based on the orientations or positional relationships indicated by the accompanying drawings or embodiments. They are only for the purpose of facilitating the description of this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] It should be noted that the term "and / or" as used in this invention includes any combination of one or more of the related listed items, "several" means one or more, "multiple" means two or more, "greater than", "less than", "exceeding" are understood to exclude the number itself, and "above", "below", "within" are understood to include the number itself.

[0025] It should be noted that the use of "first" and "second" in this invention is only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or the order of the technical features.

[0026] It should be noted that, unless otherwise expressly defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and not for limiting the invention.

[0027] Reference Figures 1-7 A basic embodiment of the first aspect of the present invention provides a water outlet regulating mechanism, comprising: The housing 100 has a first inner cavity; The adjusting member 200 is slidably disposed in the first inner cavity. The adjusting member 200 is provided with a second inner cavity. The inner wall of the second inner cavity is provided with a flow groove 210, which extends from left to right. The flow pipe 300 is disposed in the second inner cavity and can slide axially relative to the adjusting member 200. The flow pipe 300 includes a first flow section 310, a choke section 320 and a second flow section 330 from left to right. Both the first flow section 310 and the second flow section 330 are open. The choke section 320 can abut against the inner wall of the second inner cavity and can block the fluid passage between the first flow section 310 and the second flow section 330. When the adjusting member 200 slides axially, the intercepting part 320 can pass through the flow groove 210, causing the conduction area between the first flow part 310 and the second flow part 330 to change.

[0028] A second aspect of the present invention provides a shower head, including a shower head body and a water outlet adjustment mechanism as described in any of the above embodiments. The shower head body includes a handle and a water outlet panel. The handle has a water inlet channel, and the water outlet adjustment mechanism is fixedly installed in the water inlet channel of the handle. The second channel 331 of the water outlet adjustment mechanism communicates with the water inlet channel, and the first channel 311 communicates with the water outlet cavity of the water outlet panel. The user can control the axial sliding of the adjustment component 200 through the drive component 400, thereby precisely controlling the water flow of the shower head. The adjustment is smooth and without jamming, and the structure is compact, does not occupy additional installation space, has a long service life, and is not prone to leakage.

[0029] A regulating method, applied to a regulating valve, includes the following steps: The drive adjustment component 200 slides axially in a linear reciprocating motion along the first inner cavity of the housing 100, simultaneously changing the axial relative position of the flow channel 210 and the intercepting part 320. When the regulating member 200 slides to the starting position on the left side of the flow channel 210 where the flow cut-off part 320 is completely offset, the flow cut-off part 320 fits tightly against the inner wall of the second inner cavity, completely blocking the fluid passage between the first flow section 310 and the second flow section 330, so that the regulating valve remains in a fully closed state. When the adjusting member 200 slides to the point where the intercepting part 320 and the flow channel 210 are axially aligned, the first flow part 310 and the second flow part 330 form a fluid conduction passage through the flow channel 210, and the fluid flows between the first flow part 310 and the second flow part 330 through the flow channel 210. By adjusting the axial sliding displacement of the regulating component 200, the conduction area of ​​the flow channel 210 in the first flow section 310 is continuously changed, thereby achieving stepless continuous adjustment of the flow rate of the regulating valve from fully closed to fully open.

[0030] According to embodiments of the present invention, this configuration achieves at least the following effects: By employing an axially extending flow channel 210 in conjunction with the linear sliding design of the regulating member 200, the area of ​​the flow channel 210 in the first flow section 310 can be continuously changed through the axial displacement of the regulating member 200. This enables stepless adjustment of the flow cross-sectional area between the first flow section 310 and the second flow section 330, ultimately achieving smooth and precise control of the fluid flow from fully closed to fully open, completely avoiding the problems of sudden flow changes, adjustment lag, and low control accuracy during the opening and closing process of traditional regulating valves. Furthermore, through customized design of the flow channel 210's groove shape, length, and cross-sectional profile, the flow regulation curve required for different operating conditions can be flexibly matched. This allows for adaptation to different pressure levels, such as low pressure and medium-high pressure, as well as the control requirements of different media, such as liquids and gases, significantly improving the operating condition adaptability and scenario versatility of the regulating valve.

[0031] When the regulating member 200 slides to the starting position where the throttling part 320 completely avoids the flow groove 210, the outer peripheral surface of the throttling part 320 and the inner wall surface of the second inner cavity form a hard seal structure that fits the entire circumference, which can completely block the fluid passage between the first flow part 310 and the second flow part 330, and realize the zero-leakage full shut-off of the regulating valve.

[0032] The valve adopts a coaxial nested layout of housing 100, regulating element 200, and flow pipe 300. The regulating element 200 is embedded in the first inner cavity of housing 100, and the flow pipe 300 is embedded in the second inner cavity of regulating element 200. The overall structure has a compact axial layout and small radial dimensions. Compared with traditional split-type regulating valves, the overall size of the valve is significantly reduced, making it perfectly adaptable to the needs of hydraulic systems, precision fluid control, and small water supply and drainage pipelines with limited installation space, thus significantly expanding the application scenarios of the product.

[0033] Flow regulation and opening / closing actions are both achieved through coaxial linear sliding of the regulating component 200. The motion pair is a single linear reciprocating motion, with precise and controllable movement trajectory. It eliminates the radial deflection and eccentric wear problems of traditional rotary valves, and also eliminates the risk of jamming during opening and closing. The valve has a fast response speed and a smooth and stable regulation process, significantly improving the valve's operational reliability and repeatability, making it suitable for high-frequency regulation scenarios.

[0034] The core moving surfaces of this design are all axially sliding, eliminating the severe wear caused by rotational shearing and impact collisions. Compared to traditional rotary control valves, this significantly reduces the wear rate of the mating surfaces, effectively extending the valve's service life. Furthermore, the overall structure adopts a modular design, with fewer core components, simplifying assembly and disassembly processes. Subsequent maintenance and repairs require no complex operations, greatly reducing the operation and maintenance costs and difficulty of the pipeline system.

[0035] In some embodiments, multiple flow channels 210 are provided, and the multiple flow channels 210 are distributed circumferentially around the adjusting member 200. By designing multiple circumferentially distributed flow channels 210, the maximum flow capacity of the valve can be significantly improved. The parallel conduction of multiple channels significantly increases the total cross-sectional area of ​​the fluid, reduces the flow resistance, and meets the requirements of high-flow-rate conditions. Secondly, the circumferentially distributed flow channels 210 allow the fluid to enter and exit the flow pipe 300 uniformly in the circumference, avoiding uneven radial force on the regulating component 200 caused by unilateral fluid impact. This solves the problems of uneven wear and eccentric operation of the regulating component 200 that are prone to occur in single-channel designs, and greatly improves the smoothness and coaxiality of the sliding of the regulating component 200. At the same time, the circumferentially distributed flow channels can make the fluid flow more uniform, avoiding the generation of local turbulence, eddies, and cavitation, reducing the erosion of the valve body wall by the fluid, and extending the service life of the valve. In addition, the redundant design of multiple channels can avoid valve regulation failure caused by blockage of a single channel. Even if a single flow channel 210 is blocked by particulate impurities in the medium, the other flow channels 210 can still conduct normally, which greatly improves the operational reliability of the valve under conditions containing impurities.

[0036] In some embodiments, the starting positions of multiple flow channels 210 are shifted to the right one by one. Through this staggered design of the starting positions of the multiple flow channels 210 shifting to the right in stages, non-linear step-like control of the valve flow rate can be achieved, solving the dual pain points of traditional linear regulating valves: "insufficient control accuracy at small openings and slow flow rate increase at large openings." Specifically, when the throttling section 320 moves gradually from left to right, it first reaches the leftmost flow channel 210 at the starting position. At this time, only one channel is conducting, and the flow rate change corresponding to the unit displacement of the regulating element 200 is extremely small, enabling ultra-high precision fine-tuning at small openings, perfectly adapting to refined control scenarios such as precise proportioning and micro-feeding. As the throttling section 320 continues to move to the right, the flow channels 210 with their starting positions shifted to the right are connected and conducted one by one, the cross-sectional area of ​​the flow channel increases geometrically, and the flow rate increase rate gradually accelerates, achieving rapid adjustment of large flow rates at large openings, meeting the needs of rapid liquid filling and large flow rate delivery in pipeline systems. This design allows for customization of the offset at the starting position of the flow channel 210, flexibly matching the nonlinear flow characteristic curve of "fine adjustment with small opening and fast adjustment with large opening". It adapts to the differentiated adjustment needs of complex working conditions such as fast and slow switching of hydraulic systems, precise proportioning of industrial fluids, and constant pressure control of water supply and drainage systems, greatly improving the valve's adjustment performance and scenario adaptability.

[0037] In some embodiments, the width of the flow channel 210 is the same from the first flow section 310 to the second flow section 330 or gradually increases. The channel width refers to the circumferential width of the flow channel 210, and as the channel width gradually increases, the water flow rate gradually increases.

[0038] By differentiating the groove width, the flow regulation characteristics of the valve can be further enriched, enabling a single valve body to adapt to multiple scenarios and meet the regulation needs of different working conditions without changing the overall structure.

[0039] Among them, the equal-width groove design can realize linear flow regulation throughout the valve stroke. That is, the axial displacement of the regulating element 200 is strictly linearly proportional to the flow change. The regulation process is stable and controllable, without sudden flow changes. It is perfectly adapted to working conditions that require linear and stable regulation, such as constant pressure water supply, continuous flow ratio, and uniform fluid transportation. It is convenient for operators to accurately control and for the parameter calibration of automation systems.

[0040] The gradually expanding channel design (channel width gradually increases from left to right) enables non-linear gain regulation of flow rate. With the same displacement increment of the regulating element 200, the closer to the maximum opening position, the faster the flow rate increases, adapting to operating conditions requiring rapid opening and closing, emergency switching, and high flow output. Simultaneously, the gradually expanding channel width gradually reduces the fluid flow velocity within the flow channel 210, minimizing erosion and cavitation damage to the channel wall from high-speed fluid, significantly extending the service life of the flow channel 210. Furthermore, the gradually expanding channel effectively reduces local resistance within the channel, minimizing valve pressure drop losses and reducing the energy consumption of the pipeline system. Through customized design of the channel width variation gradient, various non-standard flow characteristic curves, such as equal percentage and quick-opening curves, can be further matched, significantly improving the product's customization capabilities and market adaptability.

[0041] In some embodiments, the flow-blocking portion 320 is provided with a first sealing ring 321, which can abut against the inner wall of the second inner cavity. By adding the first sealing ring 321 to the flow-blocking portion 320, a double sealing redundancy protection can be formed with the hard sealing structure of the flow-blocking portion 320, which completely solves the problem of slight internal leakage that is prone to occur in the hard sealing structure under high pressure conditions and after slight wear of the mating surfaces. The first sealing ring 321 slides synchronously with the throttling part 320. When the valve is fully closed, the sealing ring is tightly fitted with the inner wall of the second inner cavity, forming a full-circumferential soft seal, which can achieve reliable shut-off with zero internal leakage. It is especially suitable for harsh working conditions of high pressure, flammable and explosive, toxic and harmful, and highly corrosive media, eliminating safety hazards and environmental pollution caused by media leakage. At the same time, the first sealing ring 321 can effectively compensate for the machining errors, assembly deviations and wear after long-term use of the mating surfaces of the regulating component 200 and the flow pipeline 300, reduce the machining accuracy requirements of core components, control production costs, and extend the effective service life of the sealing structure. In addition, the sealing ring can prevent particulate impurities in the medium from entering the mating gap between the regulating component 200 and the flow pipeline 300, avoiding particulate impurities from scratching the mating surfaces and causing the regulating component 200 to jam, further improving the stability and reliability of valve operation.

[0042] In some embodiments, the first flow section 310 is provided with a first channel 311 and a first nozzle 312, and the second flow section 330 is provided with a second channel 331 and a second nozzle 332. Both the first channel 311 and the second channel 331 are conductive structures, allowing fluid to flow through the channel formed by the second channel 331, the second nozzle 332, the flow channel 210, the first nozzle 312, and the first channel 311. Through the flow channel layout design of "axial channel + radial nozzle", a closed-loop flow channel of "axial inflow - radial splitting - circumferential conduction - radial convergence - axial outflow" is constructed, ensuring that the flow between the first flow section 310 and the second flow section 330 can only be achieved through the flow channel 210. This completely eliminates the problem of short-circuit flow of fluid through the mating gap, structurally ensuring precise and controllable flow regulation and avoiding leakage without regulation affecting control accuracy. Meanwhile, the combination of the radial inlet and the circumferential flow channel 210 allows the fluid to enter and exit the flow pipe 300 evenly in the circumferential direction, avoiding flow turbulence caused by unilateral fluid impact, significantly reducing local resistance and pressure drop loss of the fluid, and reducing the generation of turbulence and cavitation. In addition, this flow channel layout allows the erosion force of the fluid on the valve body to be evenly distributed in the circumferential direction, avoiding component damage caused by local concentrated erosion, and extending the service life of the valve. At the same time, the axially connected main channel can be adapted to the docking installation of standard pipelines, and can be directly connected to the existing system without changing the pipeline layout, improving the installation convenience and versatility of the product.

[0043] In some embodiments, the flow pipe 300 is provided with a second sealing ring 313 and a third sealing ring 333 that can abut against the inner wall of the second inner cavity. The second sealing ring 313 is located on the left side of the first water inlet 312, the third sealing ring 333 is located on the right side of the second water inlet 332, and the first sealing ring 321 is located between the second sealing ring 313 and the third sealing ring 333. Through the hierarchical isolation layout design of the "left-middle-right" three sealing rings, three independent sealing isolation zones are formed in the second inner cavity, completely separating and sealing the mating gap between the adjusting member 200 and the flow pipe 300, thus constructing a fully enclosed controllable flow channel. The second sealing ring 313 and the third sealing ring 333 respectively seal the mating gaps on the left side of the first water inlet 312 and the right side of the second water inlet 332, completely preventing fluid leakage from the mating gaps at both ends of the regulating component 200, ensuring that all conductive fluid must pass through the flow groove 210, further improving the accuracy of flow control and eliminating uncontrollable leakage; the middle first sealing ring 321 is located between the second and third sealing rings 333, completely isolating the regulating cavity where the flow groove 210 is located from the gaps on the left and right sides, and when the valve is fully closed, it can completely block the fluid passage between the first water inlet 312 and the second water inlet 332, achieving double shut-off sealing.

[0044] In some embodiments, a drive member 400 is further included, which drives the adjusting member 200 to slide along the first inner cavity. The design of the drive member 400 provides a stable and controllable power input for the axial sliding of the adjusting member 200.

[0045] In some embodiments, the housing 100 is provided with a through hole, and a portion of the structure of the drive member 400 is located outside the housing 100. The drive member 400 is inserted into the adjusting member 200 through the through hole. The drive member 400 adopts a direct insertion transmission design, directly inserting into the adjusting member 200 to achieve power transmission. The transmission path is short, there is no transmission gap, no power loss, fast action response speed, and high control precision.

[0046] In some embodiments, the flow pipe 300 is fixedly disposed on the housing 100, and the flow pipe 300 is provided with a sliding groove 340. The adjusting member 200 is sleeved on the outside of the sliding groove 340 and slides along the sliding groove 340. This structure forms a dual coaxial sliding constraint system of "outer guide + inner guide": the outer guide is the sliding fit between the outer wall of the adjusting member 200 and the first inner cavity of the housing 100, and the inner guide is the sliding fit between the inner wall of the adjusting member 200 and the sliding groove 340 of the flow pipe 300. The two guide surfaces are coaxially arranged along the same axis, doubly locking the sliding trajectory of the adjusting member 200. This design solves the problems of radial runout, unilateral wear, and stroke jamming of the regulating component 200 that are prone to occur in single-guide structures. Even under conditions of high-pressure fluid impact and high-frequency reciprocating adjustment, the regulating component 200 can still maintain smooth and stable linear sliding, significantly reducing the wear rate of the moving mating surfaces and effectively extending the valve's service life. The flow pipeline 300 is rigidly fixed to the shell 100, forming a stable coaxial nested structure with the regulating component 200, greatly improving the overall structure's impact and vibration resistance. Compared to the floating flow pipeline 300 structure, this design can effectively resist pipeline system vibration, transient water hammer impact, and structural deformation caused by sudden pressure changes, avoiding adjustment failure and sealing leakage problems caused by structural vibration and deformation.

[0047] In some embodiments, the housing 100 and the adjusting member 200 each have a guide groove and a guide block, respectively. Both the guide block and the guide groove extend axially and cooperate with each other. The guide groove and the guide block extend along the entire axial length, forming an auxiliary guiding system with the main guide surface of the first inner cavity of the housing 100. This further constrains the sliding trajectory of the adjusting member 200, ensuring that the adjusting member 200 always performs linear reciprocating motion along the axis, and preventing radial sway and torsion during sliding. Especially in long-stroke adjustment and unilateral fluid impact conditions, it can effectively disperse radial loads, reduce contact pressure and wear on the dominant axial surface, completely eliminate the risk of stroke jamming and motion vibration, and make the sliding of the adjusting member 200 smoother and its action response more sensitive.

[0048] It should be noted that the core structural design disclosed in this invention has strong cross-domain versatility and adaptability, and is not limited to the single application scenario of shower heads. The integrated structure of "piston-type stepless flow regulation, pre-removable filter, modular removable protection, and dual precise flow control" in this solution can be directly adapted to various fluid jetting and conveying equipment without the need for substantial modifications to the core structure.

[0049] Specifically, this structure can be widely applied to handheld spray guns, shower heads, bidet spray heads, kitchen sink washers, and other bathroom products. Its stepless flow regulation function allows for precise control of the shower water flow and pressure, meeting the bathing needs of different users. The pre-filter structure effectively removes sediment, rust, and residual chlorine impurities from tap water, improving water quality and protecting human skin and hair. The detachable modular design facilitates regular filter replacement and internal channel cleaning, extending the lifespan of bathroom products. Furthermore, this structure can be seamlessly adapted to garden sprayers, pet grooming washers, food processing spray systems, and precision laboratory rinsing equipment, achieving precise flow control, water purification, and convenient maintenance.

[0050] The scope of protection of this invention is not limited to the shower head applications described in the above specific embodiments. Any fluid jetting device that adopts the core technical solution of this invention falls within the scope of protection of this invention.

[0051] It should be noted that in this specification, terms such as "one embodiment", "some embodiments", "basic embodiment", and "extended embodiment" may be used to describe several embodiments of the present invention, and the specific features, structures, materials or characteristics in the several embodiments may be combined in accordance with the principles and spirit of the present invention.

[0052] Although some embodiments of the present invention have been shown and described in this specification, the present invention should not be limited to the above embodiments. As long as they achieve the technical effects of the present invention by the same or equivalent means, any changes, modifications, equivalent substitutions and equivalent variations of these embodiments within the spirit and principles disclosed in the present invention, without departing from the principles and purpose of the present invention, should be included within the scope of protection disclosed in the present invention and should be considered to fall within the protection scope of the present invention.

Claims

1. A water outlet regulating mechanism, characterized in that, include: The housing (100) has a first inner cavity; An adjusting member (200) is slidably disposed in a first inner cavity. The adjusting member (200) is provided with a second inner cavity. The inner wall of the second inner cavity is provided with a plurality of flow grooves (210) in a circumferential direction. The flow grooves (210) extend from left to right and the starting positions of the plurality of flow grooves (210) are shifted to the right one by one. A flow pipe (300) is provided in the second inner cavity and can slide axially relative to the adjusting member (200). The flow pipe (300) includes a first flow section (310), a choke section (320) and a second flow section (330) from left to right. Both the first flow section (310) and the second flow section (330) are open. The choke section (320) can block the fluid passage between the first flow section (310) and the second flow section (330). When the adjusting member (200) slides axially, the intercepting part (320) can pass through the flow groove (210), causing the conduction area between the first flow part (310) and the second flow part (330) to change.

2. The water outlet regulating mechanism according to claim 1, characterized in that: The width of the flow channel (210) is the same or gradually increases from the first flow section (310) to the second flow section (330).

3. The water outlet regulating mechanism according to claim 1, characterized in that: The intercepting part (320) is provided with a first sealing ring (321), which can abut against the inner wall of the second inner cavity.

4. The water outlet regulating mechanism according to claim 3, characterized in that: The first flow section (310) is provided with a first channel (311) and a first water outlet (312), and the second flow section (330) is provided with a second channel (331) and a second water outlet (332). The first channel (311) and the second channel (331) are both conductive structures, and the fluid can be guided through the flow channel formed by the second channel (331), the second water outlet (332), the flow channel (210), the first water outlet (312), and the first channel (311).

5. The water outlet regulating mechanism according to claim 4, characterized in that: The flow pipe (300) is provided with a second sealing ring (313) and a third sealing ring (333) that can abut against the inner wall of the second inner cavity. The second sealing ring (313) is located on the left side of the first water inlet (312), the third sealing ring (333) is located on the right side of the second water inlet (332), and the first sealing ring (321) is located in the middle position between the second sealing ring (313) and the third sealing ring (333).

6. The water outlet regulating mechanism according to claim 1, characterized in that: It also includes a drive member (400) for driving the adjustment member (200) to slide along the first inner cavity. The housing (100) is provided with a through hole. Part of the structure of the drive member (400) is located outside the housing (100). The drive member (400) is inserted into the adjustment member (200) through the through hole.

7. The water outlet regulating mechanism according to claim 1, characterized in that: The flow pipe (300) is fixedly installed on the housing (100). The flow pipe (300) is provided with a sliding groove (340). The adjusting member (200) is sleeved on the outside of the sliding groove (340) and slides along the sliding groove (340).

8. The water outlet regulating mechanism according to claim 1, characterized in that: The housing (100) and the adjusting member (200) are provided with a guide groove and a guide block, respectively. The guide block and the guide groove are both extended axially and cooperate with each other.

9. A shower head, characterized in that: Includes the water outlet regulating mechanism as described in any one of claims 1 to 8.

10. An adjustment method, applied to the water outlet adjustment mechanism as described in any one of claims 1 to 8, characterized in that, Includes the following steps: The adjustment member (200) is driven to slide axially in a straight line along the first inner cavity of the housing (100), and the axial relative position of the flow channel (210) and the intercepting part (320) is changed simultaneously. When the regulating member (200) slides to the starting position on the left side of the flow channel (210) where the flow interception part (320) is completely offset from the flow channel (210), the flow interception part (320) fits tightly against the inner wall of the second inner cavity, completely blocking the fluid passage between the first flow section (310) and the second flow section (330), so that the regulating valve remains in a fully closed state; When the adjusting member (200) slides to the point where the intercepting part (320) and the flow channel (210) are axially aligned, the first flow part (310) and the second flow part (330) form a fluid conduction passage through the flow channel (210), and the fluid flows between the first flow part (310) and the second flow part (330) through the flow channel (210); By adjusting the axial sliding displacement of the regulating member (200), the conduction area of ​​the flow channel (210) in the first flow section (310) is continuously changed, thereby realizing stepless continuous adjustment of the flow rate of the regulating valve from fully closed to fully open.

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