Water conservancy water-saving regulating mechanism

Abstract

The utility model provides a water conservancy water saving regulation mechanism, including inlet pipe, the second pipe interface is set up in the central part of inlet pipe top, and the water outlet end of inlet pipe realizes rotary seal connection with adjusting assembly through rotary seal cover. Compared with prior art, the utility model has the beneficial effects as follows: the application cut -off pipe side wall has multiple rows of through -holes to form the flow -through hole group, three height gradually decreasing openings are set up in the corresponding position of adjusting cylinder, the flow -through hole group is matched with three gradient height openings of adjusting cylinder, and the double precision regulation logic of " opening height + through -hole row number" is constructed: on one hand, the flow -through hole group is aligned with different height openings, can utilize the difference of opening full height, 2 / 3 high, 1 / 3 high, control the conduction height of flow -through hole group, form the basic flow gradient, on the other hand, the angle of cut -off pipe is finely adjusted, can realize single row or multiple rows of through -holes and the same opening alignment, make the flow further subdivide on the basic gradient, improve the regulation accuracy.

Description

Technical Field

[0001] This utility model is a water-saving regulation mechanism, belonging to the field of water-saving regulation. Background Technology

[0002] In agricultural irrigation, industrial water circulation, and urban water supply, the efficient utilization and precise regulation of water resources are core elements in achieving water conservation goals. Water conservancy water-saving regulation mechanisms, as key equipment in the water resource transmission and distribution process, directly impact water-saving efficiency and regulation accuracy. With the increasing contradiction between water supply and demand, and the growing demand for refined water management across industries, existing water conservancy water-saving regulation equipment is gradually revealing numerous technical shortcomings, making it difficult to meet the high standards required in practical applications.

[0003] Traditional water-saving control equipment often uses a single valve structure (such as gate valve or ball valve) to achieve water flow interruption or coarse regulation. The flow rate is controlled by changing the valve opening. However, such equipment lacks the ability to precisely regulate the flow rate in a stepped manner. It can usually only achieve three levels of coarse regulation: "large, medium, and small". It cannot achieve gradient adaptation of the flow rate according to actual needs, which can easily lead to water waste. Therefore, it is necessary to design a water-saving control mechanism. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a water-saving regulation mechanism to solve the problems mentioned in the background technology.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a water-saving regulation mechanism, comprising: The water inlet pipe has a second conduit interface at the top center, and the water outlet end of the water inlet pipe is connected to the adjustment component through a rotating sealing sleeve. A threaded connection sleeve is provided on the outside of the rotating sealing sleeve. The adjustment assembly includes an outer cylinder, an adjustment cylinder, and a tapered connecting part. The outer cylinder has an integrally formed tapered connecting part with a gradually decreasing diameter at the end away from the water inlet pipe, and the adjustment cylinder is provided inside the outer cylinder. The adjustment cylinder is threadedly connected to the tapered connecting part. The water outlet assembly includes a first threaded connecting pipe, a measuring pipe, and a shut-off pipe. One end of the shut-off pipe is located inside the regulating cylinder, and the other end of the shut-off pipe passes through the tapered connecting part and is integrally connected to the measuring pipe. The shut-off pipe is rotatably connected to the tapered connecting part. The end of the measuring pipe away from the water inlet pipe is integrally connected to the first threaded connecting pipe, and a first conduit interface is provided at the center of the top of the measuring pipe. The differential pressure flow meter is located above the regulating component, and its two pressure taps are connected to the first conduit interface and the second conduit interface respectively via pressure taps.

[0006] Furthermore, the inner diameter of the measuring tube is consistent with the inner diameter of the choke tube, and the outer diameter of the choke tube matches the inner diameter of the tapered connector. The outer diameter of the measuring tube is consistent with the outer diameter of the narrow end of the tapered connector, and an indicator arrow is provided on the outer surface of the measuring tube. The outer surface of the tapered connector is uniformly provided with graduations along the circumference.

[0007] Furthermore, the end of the intercepting tube away from the measuring tube is sealed. An anti-detachment ring is provided on the outer surface of the intercepting tube near the measuring tube. An anti-detachment groove that matches the anti-detachment ring is provided on the inner side of the tapered connecting part. Ratchets are uniformly provided on the outer surface of the intercepting tube between the anti-detachment ring and the measuring tube. Multiple ratchet grooves that perfectly match the shape and size of the ratchet are provided on the inner sidewall of the tapered connecting part on the circumferential trajectory of the ratchet.

[0008] Furthermore, the inner diameter of the regulating cylinder matches the outer diameter of the throttling pipe, and one end of the regulating cylinder near the coarse diameter end of the tapered connecting part is threadedly connected to the tapered connecting part via a threaded joint.

[0009] Furthermore, a set of flow holes is provided on the side wall of the intercepting pipe, and the flow hole set consists of multiple rows of through holes closely arranged along the circumference of the intercepting pipe. Each row of through holes is neatly arranged along the axial direction of the intercepting pipe. A sealing strip is provided on the pipe wall of the intercepting pipe outside the flow hole set. Three openings are opened at equal angles on the side wall of the adjusting cylinder corresponding to the position of the flow hole set. The width of the three openings is the same and matches the overall width of the flow hole set. The heights decrease in a gradient. The height of the largest opening is the same as the height of a single row of through holes in the flow hole set. The heights of the other two openings are two-thirds and one-third of the height of a single row of through holes in the flow hole set, respectively.

[0010] Furthermore, the rotary sealing sleeve is formed by two half-sleeves snapping together. The splicing surfaces of the two half-sleeves are provided with concave and convex grooves. After splicing, they are fixed by the interlocking of the grooves. The end of the rotary sealing sleeve away from the water outlet component is integrally provided with an outwardly protruding blocking ring. The outer surface of the rotary sealing sleeve is provided with external threads, and the inside of the threaded connecting sleeve is provided with internal threads that are compatible with the external threads. The outer diameter of the threaded connecting sleeve is the same as the outer diameter of the blocking ring.

[0011] Furthermore, the outer surface of the outer cylinder is provided with anti-slip texture, and the end of the outer cylinder near the water inlet pipe is provided with a first protruding flange. One to three first sealing rings are evenly distributed on the outer surface of the outer cylinder near the first flange. The outer surface of the water inlet end of the water inlet pipe is provided with a second threaded connection, and the water outlet end of the water inlet pipe is integrally connected with a second flange. One to three second sealing rings are evenly distributed on the outer surface of the water inlet pipe between the second flange and the second conduit interface. An annular rotating groove is opened at the center of the interior of the rotating sealing sleeve. After the end faces of the first flange and the second flange are fitted together, they are embedded in the rotating groove as a whole. The outer circumference shape of the first flange and the second flange after fitting together is completely adapted to the inner sidewall shape of the rotating groove. Sealing grooves are provided inside the rotating sealing sleeves at both ends of the rotating groove, and the sealing grooves are interference-fitted with the corresponding first sealing rings and second sealing rings.

[0012] The beneficial effects of this utility model are: 1. This application constructs a refined flow control system through the collaborative design of "flow hole group + multi-height opening". Specifically, the side wall of the intercepting pipe is provided with multiple rows of through holes arranged closely along the circumference to form a flow hole group. The regulating cylinder has three openings with gradually decreasing heights at the corresponding positions. The flow hole group and the three gradient height openings of the regulating cylinder cooperate to construct a dual precise control logic of "opening height + number of through hole rows": On the one hand, by aligning the flow hole group with openings of different heights, the difference between the full height, 2 / 3 height and 1 / 3 height of the opening can be used to control the conduction height of the flow hole group and form a basic flow gradient; on the other hand, by finely adjusting the angle of the intercepting pipe, a single row or multiple rows of through holes can be aligned with the same opening, so that the flow can be further subdivided on the basic gradient. This design breaks through the limitations of the coarse adjustment of traditional equipment and is more adaptable to the fine water demand under different conditions in actual use, avoiding water waste caused by insufficient adjustment precision.

[0013] 2. This application integrates the differential pressure flow meter with the control structure into a cohesive design, constructing an efficient feedback control mechanism. The two pressure taps of the differential pressure flow meter are directly connected to the second conduit interface of the inlet pipe and the first conduit interface of the measuring pipe via pressure taps, respectively. This allows for real-time acquisition of pressure data before and after the water flow passes through the control system, enabling accurate calculation of the current flow rate. Simultaneously, the measuring pipe and the intercepting pipe are integrated, and the rotational adjustment of the intercepting pipe directly changes the alignment of the flow orifice group with the opening, achieving flow control. This design, which directly links the measuring interface with the control components, eliminates the spatial gap between measurement and control in traditional equipment, allowing measurement data to reflect the control effect in real time. Operators can quickly adjust the rotation angle of the intercepting pipe based on the real-time reading of the differential pressure flow meter, achieving closed-loop management of "real-time monitoring - immediate adjustment - effect feedback," solving the problem of measurement data lag, and significantly improving the accuracy of flow control. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the combined structure of this utility model; Figure 2 This is a schematic diagram of the disassembled structure of this utility model; Figure 3 This is a schematic diagram of the water outlet component structure of this utility model; Figure 4 This is a partial cross-sectional view of the adjustment component of this utility model; Figure 5 This is a schematic diagram showing the disassembled structure of the rotary sealing sleeve and threaded connecting sleeve of this utility model; In the picture: 1. Water outlet assembly; 101. First threaded connecting pipe; 102. Measuring pipe; 1021. First conduit interface; 1022. Indicating arrow; 103. Cut-off pipe; 1031. Flow hole group; 1032. Ratchet; 1033. Anti-detachment ring; 2. Adjustment assembly; 201. Outer cylinder; 2011. Anti-slip texture; 2012. First flange; 2013. First sealing ring; 202. Adjustment cylinder; 2021. Opening; 2022. Threaded connector; 203. Tapered connection; 2031. Scale; 2032. Ratchet; 2033. Anti-disengagement groove; 3. Water inlet pipe; 301. Second threaded connection; 302. Second conduit interface; 303. Second sealing ring; 304. Second flange; 4. Rotary sealing sleeve; 401. Half sleeve; 4011. External thread; 4012. Retaining ring; 4013. Rotary groove; 4014. Sealing adhesive groove; 5. Threaded connection sleeve; 6. Differential pressure flow meter; 601. Pressure tapping pipe. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] Please see Figures 1 to 5This utility model provides a technical solution: a water-saving control mechanism, including an inlet pipe 3, a second conduit interface 302 at the center of the top of the inlet pipe 3, and the outlet end of the inlet pipe 3 is rotary sealed to the regulating component 2 through a rotary sealing sleeve 4. A threaded connecting sleeve 5 is provided on the outer side of the rotary sealing sleeve 4. The regulating component 2 includes an outer cylinder 201, a regulating cylinder 202, and a conical connecting part 203. The outer cylinder 201, away from the inlet pipe 3, is integrally provided with a conical connecting part 203 with a gradually decreasing diameter, and the regulating cylinder 202 is provided inside the outer cylinder 201. The regulating cylinder 202 is threadedly connected to the conical connecting part 203. The outlet component 1 includes a first threaded connecting pipe 101, a measuring pipe 102, and a cutoff pipe 103. One end of the cutoff pipe 103 is located inside the regulating cylinder 202, and the other end of the cutoff pipe 103 passes through the conical connecting part 203 and is integrally connected to the measuring pipe 102. 2. The intercepting pipe 103 is rotatably connected to the tapered connecting part 203. The end of the measuring pipe 102 away from the inlet pipe 3 is integrally connected to the first threaded connecting pipe 101, and the top center of the measuring pipe 102 is provided with the first conduit interface 1021. The differential pressure flow meter 6 is set above the regulating component 2, and the two pressure taps of the differential pressure flow meter 6 are respectively connected to the first conduit interface 1021 and the second conduit interface 302 through the pressure taps 601. Through the pressure taps of the differential pressure flow meter 6, the first conduit interface 1021 and the second conduit interface 302 are directly connected via the pressure taps 601, which can collect the water flow pressure data in the inlet pipe 3 and the measuring pipe 102 in real time, quickly calculate the flow rate, realize the "measurement-control-feedback" closed-loop management, and solve the measurement lag problem of traditional equipment. At the same time, the cooperation between the intercepting pipe 103 and the regulating cylinder 202 provides a structural basis for subsequent stepped flow regulation and improves the regulation accuracy.

[0017] Furthermore, the inner diameter of the measuring tube 102 is consistent with the inner diameter of the intercepting tube 103, and the outer diameter of the intercepting tube 103 matches the inner diameter of the tapered connection 203. The outer diameter of the measuring tube 102 is consistent with the outer diameter of the narrow end of the tapered connection 203. An indicator arrow 1022 is provided on the outer surface of the measuring tube 102, and a scale 2031 is evenly provided along the circumference on the outer surface of the tapered connection 203. The indicator arrow 1022 on the outer surface of the measuring tube 102 and the scale 2031 on the outer surface of the tapered connection 203 are precisely matched. The operator can intuitively judge the rotation adjustment status of the intercepting tube 103 by the scale 2031 pointed to by the arrow, without relying on experience, thus reducing adjustment errors. At the same time, the inner diameters of the measuring tube 102 and the intercepting tube 103 are consistent, ensuring smooth water flow between the two and avoiding flow fluctuations caused by sudden changes in pipe diameter, thereby improving flow stability.

[0018] Furthermore, the end of the intercepting tube 103 away from the measuring tube 102 is sealed. An anti-detachment ring 1033 is provided on the outer surface of the intercepting tube 103 near the measuring tube 102. An anti-detachment groove 2033, matching the position of the anti-detachment ring 1033, is provided on the inner side of the tapered connecting part 203. Racket teeth 1032 are evenly distributed on the outer surface of the intercepting tube 103 between the anti-detachment ring 1033 and the measuring tube 102. Multiple grooves are formed on the inner wall of the tapered connecting part 203 along the circumferential trajectory of the ratchet teeth 1032. A ratchet groove 2032 that perfectly matches the shape and size of the ratchet 1032, and an anti-detachment ring 1033 on the cut-off pipe 103 that engages with the anti-detachment groove 2033 on the inner side of the conical connecting part 203, can prevent the cut-off pipe 103 from axial displacement during rotation adjustment, ensuring connection stability; at the same time, the ratchet 1032 of the cut-off pipe 103 and the ratchet groove 2032 of the conical connecting part 203 precisely engage, which can fix the rotation position of the cut-off pipe 103, avoid water flow impact causing the control state to deviate, and improve operational stability.

[0019] Furthermore, the inner diameter of the regulating cylinder 202 matches the outer diameter of the intercepting pipe 103, and the end of the regulating cylinder 202 near the coarse diameter end of the tapered connecting part 203 is threadedly connected to the tapered connecting part 203 via a threaded joint 2022. The inner diameter of the regulating cylinder 202 and the outer diameter of the intercepting pipe 103 are precisely matched with a reasonable fit clearance. This avoids both excessive clearance causing water flow to fluctuate and affecting flow stability, and excessive clearance increasing the relative sliding resistance between the two, ensuring the flexibility of adjustment. At the same time, the regulating cylinder 202 is threadedly connected to the tapered connecting part 203 via the threaded joint 2022, which is convenient to assemble and firmly connected, facilitating later maintenance and disassembly, and improving the practicality of the equipment.

[0020] Furthermore, a set of flow holes 1031 is provided on the side wall of the intercepting pipe 103, and the flow hole group 1031 consists of multiple rows of through holes closely arranged along the circumference of the intercepting pipe 103. Each row of through holes is neatly arranged along the axial direction of the intercepting pipe 103. A sealing strip is provided on the pipe wall of the intercepting pipe 103 outside the flow hole group 1031. Three openings 2021 are equally angularly opened on the side wall of the adjusting cylinder 202 at the position corresponding to the flow hole group 1031. The three openings 2021 have the same width and are adapted to the overall width of the flow hole group 1031. The heights decrease in a gradient, with the height of the largest opening 2021 being the same as the height of a single row of through holes in the flow hole group 1031. The heights of the other two openings 2021 are... The heights are two-thirds and one-third of the height of a single row of through holes in the flow hole group 1031, respectively. The flow hole group 1031 of the intercepting pipe 103 cooperates with the three gradient height openings 2021 of the regulating cylinder 202. By rotating the intercepting pipe 103, the flow hole group 1031 can be aligned with the openings 2021 of different heights, forming a stepped change in the flow area. Each opening 2021 can also be adjusted by rotation to align with a single row of through holes or to fully align with multiple rows of through holes, breaking the limitations of traditional rough adjustment and accurately adapting to the flow requirements of different scenarios. At the same time, the sealing strip on the outside of the flow hole group 1031 can reduce water leakage from the gap between the regulating cylinder 202 and the intercepting pipe 103, ensuring sealing performance.

[0021] Furthermore, the rotary sealing sleeve 4 is formed by two half-sleeves 401 engaging and splicing. The splicing surfaces of the two half-sleeves 401 are provided with concave and convex grooves, which are engaged and fixed after splicing. The end of the rotary sealing sleeve 4 away from the water outlet component 1 is integrally provided with an outwardly protruding blocking ring 4012. The outer surface of the rotary sealing sleeve 4 is provided with an external thread 4011, and the inside of the threaded connecting sleeve 5 is provided with an internal thread that matches the external thread 4011. The outer diameter of the threaded connecting sleeve 5 is the same as the outer diameter of the blocking ring 4012. The two half-sleeves 401 of the rotary sealing sleeve 4 are spliced ​​and fixed by the concave and convex grooves. During assembly, it is not necessary to put the whole sleeve on. It can be installed after the water inlet pipe 3 is connected to the adjusting component 2, which improves the ease of assembly. The external thread 4011 of the rotary sealing sleeve 4 and the internal thread of the threaded connecting sleeve 5 cooperate to further strengthen the splicing and connection of the rotary sealing sleeve 4. At the same time, the blocking ring 4012 can limit the screwing depth of the threaded connecting sleeve 5, avoid over-assembly and damage to components, and ensure structural reliability.

[0022] Furthermore, the outer surface of the outer cylinder 201 is provided with anti-slip texture 2011, and the end of the outer cylinder 201 near the water inlet pipe 3 is provided with a protruding first flange 2012. One to three first sealing rings 2013 are evenly distributed on the outer surface of the outer cylinder 201 near the first flange 2012. The outer surface of the water inlet end of the water inlet pipe 3 is provided with a second threaded connection part 301, and the water outlet end of the water inlet pipe 3 is integrally connected with a second flange 304. One to three second sealing rings 303 are evenly distributed on the outer surface of the water inlet pipe 3 between the second flange 304 and the second conduit interface 302. An annular rotating groove 4013 is opened at the center of the rotating sealing sleeve 4. After the end faces of the first flange 2012 and the second flange 304 are fitted together, they are embedded in the rotating groove 4013 as a whole, and the first flange 2012 and the second flange 304 are in close contact. The outer periphery shape of the rear part is perfectly matched with the inner wall shape of the rotating groove 4013. The rotating sealing sleeves 4 at both ends of the rotating groove 4013 are provided with sealing grooves 4014. The sealing grooves 4014 are press-fitted with the corresponding first sealing ring 2013 and second sealing ring 303. The anti-slip texture 2011 on the outer surface of the outer cylinder 201 can increase the friction between the hand and the outer cylinder 201. Even in a humid environment, the operator can hold it stably, reducing the difficulty of operation and safety risks. The rotating groove 4013 of the rotating sealing sleeve 4 is adapted to the first flange 2012 and the second flange 304 after they are fitted together. The sealing groove 4014 is press-fitted with the first sealing ring 2013 and the second sealing ring 303. This can effectively block the water leakage channel at the connection between the water inlet pipe 3 and the adjustment component 2, solve the problem of easy aging and leakage of traditional single seals, and ensure long-term reliable sealing.

[0023] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water-saving regulation mechanism, characterized in that, include: The water inlet pipe (3) has a second conduit interface (302) in the center of the top, and the water outlet of the water inlet pipe (3) is connected to the adjustment component (2) through a rotating sealing sleeve (4). A threaded connection sleeve (5) is provided on the outside of the rotating sealing sleeve (4). The adjustment assembly (2) includes an outer cylinder (201), an adjustment cylinder (202), and a tapered connecting part (203). The outer cylinder (201) is integrally provided with a tapered connecting part (203) with a gradually decreasing diameter at one end away from the water inlet pipe (3), and the adjustment cylinder (202) is provided inside the outer cylinder (201). The adjustment cylinder (202) is threadedly connected to the tapered connecting part (203). The water outlet assembly (1) includes a first threaded connecting pipe (101), a measuring pipe (102), and a cut-off pipe (103). One end of the cut-off pipe (103) is located inside the regulating cylinder (202), and the other end of the cut-off pipe (103) passes through the tapered connecting part (203) and is integrally connected to the measuring pipe (102). The cut-off pipe (103) is rotatably connected to the tapered connecting part (203). The end of the measuring pipe (102) away from the water inlet pipe (3) is integrally connected to the first threaded connecting pipe (101), and a first conduit interface (1021) is opened at the center of the top of the measuring pipe (102). The differential pressure flow meter (6) is located above the regulating component (2), and the two pressure taps of the differential pressure flow meter (6) are connected to the first conduit interface (1021) and the second conduit interface (302) respectively through the pressure tapping pipe (601).

2. The water-saving regulation mechanism according to claim 1, characterized in that: The inner diameter of the measuring tube (102) is the same as the inner diameter of the choke tube (103), and the outer diameter of the choke tube (103) matches the inner diameter of the tapered connecting part (203). The outer diameter of the measuring tube (102) is the same as the outer diameter of the narrow end of the tapered connecting part (203). An indicator arrow (1022) is provided on the outer surface of the measuring tube (102), and a scale (2031) is uniformly provided on the outer surface of the tapered connecting part (203) along the circumference.

3. The water-saving regulation mechanism according to claim 1, characterized in that: The end of the intercepting tube (103) away from the measuring tube (102) is sealed. The outer surface of the intercepting tube (103) near the measuring tube (102) is provided with an anti-detachment ring (1033). The inner side of the tapered connecting part (203) is provided with an anti-detachment groove (2033) that matches the position of the anti-detachment ring (1033). The outer surface of the intercepting tube (103) between the anti-detachment ring (1033) and the measuring tube (102) is uniformly provided with ratchet teeth (1032). The inner side wall of the tapered connecting part (203) is provided with multiple ratchet grooves (2032) that are completely matched with the shape and size of the ratchet teeth (1032) on the circumferential trajectory of the ratchet teeth (1032).

4. The water-saving regulation mechanism according to claim 1, characterized in that: The inner diameter of the regulating cylinder (202) matches the outer diameter of the throttling pipe (103), and one end of the regulating cylinder (202) near the coarse diameter end of the tapered connecting part (203) is threadedly connected to the tapered connecting part (203) through a threaded joint (2022).

5. A water-saving regulation mechanism according to claim 1, characterized in that: A set of flow holes (1031) is provided on the side wall of the intercepting pipe (103), and the flow hole group (1031) consists of multiple rows of through holes arranged closely along the circumference of the intercepting pipe (103). Each row of through holes is neatly arranged along the axial direction of the intercepting pipe (103). A sealing strip is provided on the pipe wall of the intercepting pipe (103) outside the flow hole group (1031). Three openings (2021) are opened at equal angles at the position corresponding to the flow hole group (1031) on the side wall of the regulating cylinder (202). The width of the three openings (2021) is the same and matches the overall width of the flow hole group (1031). The height decreases in a gradient. The height of the largest opening (2021) is the same as the height of a single row of through holes in the flow hole group (1031). The heights of the other two openings (2021) are two-thirds and one-third of the height of a single row of through holes in the flow hole group (1031), respectively.

6. A water-saving regulation mechanism according to claim 1, characterized in that: The rotating sealing sleeve (4) is formed by two half sleeves (401) snapping together. The splicing surfaces of the two half sleeves (401) are provided with concave and convex grooves. After splicing, they are fixed by the interlocking of the grooves. The rotating sealing sleeve (4) is provided with an outwardly protruding blocking ring (4012) at one end away from the water outlet component (1). The outer surface of the rotating sealing sleeve (4) is provided with an external thread (4011). The threaded connecting sleeve (5) is provided with an internal thread that matches the external thread (4011). The outer diameter of the threaded connecting sleeve (5) is the same as the outer diameter of the blocking ring (4012).

7. A water-saving regulation mechanism according to claim 1, characterized in that: The outer surface of the outer cylinder (201) is provided with anti-slip texture (2011), and the end of the outer cylinder (201) near the water inlet pipe (3) is provided with a first protruding flange (2012). One to three first sealing rings (2013) are evenly distributed on the outer surface of the outer cylinder (201) near the first flange (2012). The outer surface of the water inlet end of the water inlet pipe (3) is provided with a second threaded connection (301), and the water outlet end of the water inlet pipe (3) is integrally connected with a second flange (304). One to three second sealing rings are evenly distributed on the outer surface of the water inlet pipe (3) between the second flange (304) and the second conduit interface (302). A ring (303) is provided in the center of the rotating sealing sleeve (4). After the end faces of the first flange (2012) and the second flange (304) are fitted together, they are embedded in the rotating groove (4013). The outer circumference shape of the first flange (2012) and the second flange (304) after they are fitted together is completely matched with the inner sidewall shape of the rotating groove (4013). The rotating sealing sleeve (4) at both ends of the rotating groove (4013) is provided with a sealing groove (4014). The sealing groove (4014) is press-fitted with the corresponding first sealing ring (2013) and second sealing ring (303).

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