Flow control device for water supply and drainage

Abstract

The utility model relates to water supply and drainage technical field discloses water supply and drainage flow control equipment, including water pipe, the control pipe is fixedly installed on water pipe, is equipped with flowing cavity in the control pipe, and the flow guide structure is movably arranged in the control pipe, and the flow guide structure includes support shaft, sealing baffle and water delivery spiral, and the both ends of support shaft are fixedly provided with sealing baffle and water delivery spiral of different size specifications respectively, and support shaft is movably arranged in the control pipe, and the flow resistance structure is rotatably arranged in the control pipe, and the flow resistance structure includes water stop and diffuser pipe, and one diffuser pipe is fixedly arranged at the both ends of water stop respectively, and water stop is rotatably connected control pipe through the diffuser pipe at both ends, through setting the flowing cavity of C, the pressure under the water flow impact of C-shaped buffer is buffered by spiral flow guide of water delivery spiral, makes the water flow to flow slowly, avoids water hammer phenomenon, guarantees the stable use of equipment simultaneously, thereby alleviates maintenance cost.

Description

Technical Field

[0001] This utility model belongs to the field of tap water supply and drainage technology, specifically, it relates to flow control equipment for tap water supply and drainage. Background Technology

[0002] Tap water needs to be purified and disinfected before being delivered to users through water distribution pumping stations. During the water supply and drainage process, the flow rate and velocity need to be controlled.

[0003] The prior art discloses a flow control device (CN214278756U) for water supply and drainage in a water company, including a main body, a control mechanism, and a counting mechanism. The main body includes a water pipe, and the top end of the water pipe is connected to a mounting shell. The control mechanism includes a stop block located on the inner wall of the mounting shell. This invention controls the flow rate of tap water in the water pipe by setting up a control mechanism. When the motor rotates, it drives the stop block to move. The flow rate of tap water is controlled by the different positions of the stop block. After reaching the appropriate position, the stop block is moved into the slot by the elastic force of a second spring, fixing the stop block. When the stop block needs to be raised, the push block is pressed, and the push block moves, causing the stop block to move out of the slot, thus releasing the fixation of the stop block.

[0004] The search revealed that the baffle uses a planar linear displacement flow control method. The edge of the baffle is difficult to fit completely with the inner wall of the mounting shell, which easily creates a water flow bypass gap. This results in a large deviation between the actual flow rate and the set flow rate, leading to poor flow control effect. It is not suitable for the stable flow control requirements in various environments. At the same time, the impact without a buffer structure is prone to water hammer in the pipeline, which may damage subsequent water meters, valves and other equipment, increasing the maintenance costs of the water company.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: Flow control equipment for tap water supply and drainage, including A water pipe, on which a control pipe is fixedly installed, and a flow chamber is provided inside the control pipe; A flow guiding structure is movably disposed within a control tube. The flow guiding structure includes a support shaft, a sealing baffle, and a water conveying spiral. Sealing baffles and water conveying spirals of different sizes are fixedly disposed at both ends of the support shaft, and the support shaft is movably disposed within the control tube. A flow-blocking structure is rotatably disposed inside a control pipe. The flow-blocking structure includes a water-blocking plate and a flow-diffusing pipe. A flow-diffusing pipe is fixedly disposed at each end of the water-blocking plate. The water-blocking plate is rotatably connected to the control pipe through the flow-diffusing pipes at both ends.

[0007] In a preferred embodiment of this utility model, the flow cavity has a C-shaped structure, one end of the flow cavity is fixed to the inner wall of the control tube, and the other end of the flow cavity is provided with a water outlet, forming a C-shaped flow channel between the control tube and the flow cavity.

[0008] In a preferred embodiment of this utility model, a U-shaped bracket is fixedly provided on the top of the outer side of the control tube, and a threaded shank is provided on the inner thread of the bracket. The top of the threaded shank is fixed to the sealing baffle at the top of the support shaft.

[0009] In a preferred embodiment of this utility model, the water-blocking plate is an arc-shaped plate structure with a cross-section resembling a C shape. A handle is fixedly provided on the diffuser pipe at the top of the water-blocking plate. The handle rotates through the control pipe, and the threaded shank rotates through the handle.

[0010] In a preferred embodiment of this utility model, water conveying spirals with different pitches are fixedly arranged on the curved surfaces at both ends of the support shaft, and a sealing baffle with a different diameter is fixed at each end of the support shaft, the size of the sealing baffle matching that of the water conveying spiral.

[0011] In a preferred embodiment of this utility model, the diffuser at the top of the water-blocking plate is rotatably engaged with the sealing baffle at the top of the support shaft, and the diffuser at the bottom of the water-blocking plate is rotatably engaged with the sealing baffle at the bottom of the support shaft.

[0012] In a preferred embodiment of this utility model, the diffuser tubes at both ends of the water-blocking plate rotate through the upper and lower sides of the flow cavity, and the outer curved surface of the water-blocking plate corresponds to and fits the water outlet.

[0013] Compared with the prior art, the present invention has the following advantages: 1. By setting up a flow guiding structure and controlling its raising and lowering via a threaded handle, the sealing baffle, in conjunction with the spiral flow guiding and stabilizing effect of the water conveying spiral, prevents water bypass. The flow obstruction structure adjusts the contact area between the arc surface of the water obstruction plate and the outlet to precisely control the downstream water output. When the two work together, they are suitable for small-area time-sharing water supply, accurately matching user water consumption and avoiding water waste. At the same time, they meet the requirements of industrial users for flow stability and ensure production quality.

[0014] 2. By setting up a C-shaped flow cavity, the C-shape buffers the water flow impact, while the spiral guide of the water conveying screw buffers the pressure under the water flow impact, allowing the water to flow slowly, avoiding water hammer phenomenon, ensuring stable use of the equipment, and thus reducing maintenance costs.

[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0016] In the attached diagram: Figure 1 This is a cross-sectional view of the overall structure of this utility model; Figure 2 This is a cross-sectional schematic diagram of the water pipe and control pipe of this utility model; Figure 3 This is a structural breakdown diagram of the present invention; Figure 4 This is a schematic diagram of the flow guiding structure of this utility model; Figure 5 This is a schematic diagram of the flow-blocking structure of this utility model.

[0017] In the diagram: 10. Water pipe; 11. Control pipe; 12. Support; 13. Flow chamber; 14. Outlet; 15. Water baffle; 16. Handle; 17. Diffuser; 18. Support shaft; 19. Threaded shank; 20. Sealing baffle; 21. Water conveying spiral. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0019] Flow control equipment for tap water supply and drainage, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, including Water pipe 10 is the main flow pipe of the equipment. A control pipe 11 is fixedly installed on the water pipe 10. A flow chamber 13 is provided inside the control pipe 11. The flow guiding structure is the core of stepless flow fine adjustment and water hammer buffering. The flow guiding structure is movably set in the control tube 11. The flow guiding structure includes a support shaft 18, a sealing baffle 20 and a water conveying spiral 21. The two ends of the support shaft 18 are respectively fixed with sealing baffles 20 and water conveying spirals 21 of different specifications and sizes. The support shaft 18 is movably set in the control tube 11. The flow-blocking structure is the core of the large or small flow mode switching and the enhanced sealing. The flow-blocking structure is rotatably set in the control pipe 11. The flow-blocking structure includes a water-blocking plate 15 and a diffuser pipe 17. A diffuser pipe 17 is fixedly set at each end of the water-blocking plate 15. The water-blocking plate 15 is rotatably connected to the control pipe 11 through the diffuser pipes 17 at both ends. like Figure 1 , Figure 2As shown, the flow chamber 13 has a C-shaped structure. One end of the flow chamber 13 is fixed to the inner wall of the control pipe 11, and the other end of the flow chamber 13 is provided with an outlet 14. A C-shaped flow channel is formed between the control pipe 11 and the flow chamber 13. After the water enters the control pipe 11, it must flow through this C-shaped channel.

[0020] The working principle is as follows: after tap water enters the control pipe 11 from the inlet of the water pipe 10, it is guided by the C-shaped flow chamber 13 and flows along the C-shaped flow channel between the control pipe 11 and the flow chamber 13. Finally, it flows to the outlet of the water pipe 10 through the outlet 14 of the flow chamber 13.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a U-shaped bracket 12 is fixedly provided on the top of the outer side of the control tube 11. A threaded shank 19 is provided in the inner thread of the bracket 12. The top of the threaded shank 19 is fixed to the sealing baffle 20 at the top of the support shaft 18. The lower end of the threaded shank 19 rotates through the handle 16 and the top diffuser 17 in sequence. like Figure 1 , Figure 3 , Figure 4 , Figure 5 As shown, the water-blocking plate 15 is an arc-shaped plate structure with a cross-section resembling a C. A handle 16 is fixedly installed on the diffuser pipe 17 at the top of the water-blocking plate 15. The handle 16 rotates through the control pipe 11. The handle 16 extends outward and rotates through the pipe wall of the control pipe 11, making it convenient for operators to operate from the outside. The threaded shank 19 rotates through the handle 16. Rotating the threaded shank 19 can drive the support shaft 18 to move up and down along the axis of the control pipe 11 through thread transmission, thereby adjusting the cross-sectional area of ​​the flow channel.

[0022] like Figure 4 As shown, water conveying spirals 21 with different pitches are fixedly installed on the curved surfaces at both ends of the support shaft 18. The upper end has a larger pitch and the lower end has a smaller pitch. A sealing baffle 20 with a different diameter is fixed at each end of the support shaft 18. The size of the sealing baffle 20 matches that of the water conveying spiral 21. like Figure 1 , Figure 3 , Figure 4 , Figure 5 As shown, the diffuser 17 at the top of the water-blocking plate 15 is rotatably engaged with the sealing baffle 20 at the top of the support shaft 18, and the diffuser 17 at the bottom of the water-blocking plate 15 is rotatably engaged with the sealing baffle 20 at the bottom of the support shaft 18. like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the diffuser pipes 17 at both ends of the water baffle 15 rotate through the upper and lower sides of the flow cavity 13, and the outer curved surface of the water baffle 15 is in contact with the water outlet 14 to ensure that it can perfectly fit and seal the water outlet 14.

[0023] The working principle is as follows: the support shaft 18 moves up and down through the threaded drive of the threaded shank 19. The sealing baffles 20 at both ends change their contact area with the inner wall of the control pipe 11 as the support shaft 18 moves. The larger the contact area, the smaller the cross-sectional area of ​​the C-shaped flow channel, and the lower the inlet flow rate. Simultaneously, the water conveying spiral 21 moves synchronously with the support shaft 18, transforming the straight-flowing water into a spiral flow, reducing turbulence and avoiding flow fluctuations caused by sudden changes in velocity. When the water flow is large, the water accumulates in the C-shaped channel. At this time, rotating the threaded shank 19 controls the flow guiding structure to rise, and the sealing baffle 20 at the bottom of the support shaft 18 seals against the top of the diffuser pipe 17 at the bottom of the water-blocking plate 15. The water can then pass through the water conveying spiral 21 at the top of the support shaft 18. 1. Flow discharge; Rotating handle 16 causes the water-blocking plate 15 to rotate, directly connecting to the outlet 14, thus enabling the direct inflow of large-volume water; Lowering support shaft 18, the sealing baffle 20 at the top of support shaft 18 fits against the top diffuser pipe 17, and the water flows out from the bottom small water conveying spiral 21 through the bottom of the C-shaped channel, enabling the direct discharge of small-volume water; The water-blocking plate 15 drives the diffuser pipe 17 to rotate through the handle 16, and its C-shaped arc-shaped outer curved surface changes the contact area with the outlet 14 as it rotates. The larger the contact area, the smaller the effective flow cross-sectional area of ​​the outlet 14, and the less downstream water flow; At the same time, the diffuser pipe 17 disperses the water flow concentrated at the outlet 14 into a uniform water flow along the pipe circumference, further weakening the impact of the water flow on the downstream pipe.

[0024] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A flow control device for water supply and drainage, characterized by include Water pipe (10), on which a control pipe (11) is fixedly installed, and a flow chamber (13) is provided inside the control pipe (11); The flow guiding structure is movably disposed within the control tube (11). The flow guiding structure includes a support shaft (18), a sealing baffle (20), and a water conveying spiral (21). The two ends of the support shaft (18) are respectively fixedly provided with sealing baffles (20) and water conveying spirals (21) of different specifications and sizes. The support shaft (18) is movably disposed within the control tube (11). The flow-blocking structure is rotatably disposed inside the control tube (11). The flow-blocking structure includes a water-blocking plate (15) and a diffuser (17). A diffuser (17) is fixedly disposed at each end of the water-blocking plate (15). The water-blocking plate (15) is rotatably connected to the control tube (11) through the diffuser (17) at both ends.

2. The flow control device for a tap water supply and drain according to claim 1, characterized by The flow chamber (13) has a C-shaped structure. One end of the flow chamber (13) is fixed to the inner wall of the control pipe (11), and the other end of the flow chamber (13) is provided with an outlet (14). A C-shaped flow channel is formed between the control pipe (11) and the flow chamber (13).

3. The flow control device for a tap water supply and drain according to claim 2, characterized by The top of the outer side of the control tube (11) is fixedly provided with a U-shaped bracket (12), and the bracket (12) is provided with a threaded shank (19) with an internal thread. The top of the threaded shank (19) is fixed to the sealing baffle (20) at the top of the support shaft (18).

4. The flow control device for a tap water supply and drain according to claim 3, characterized by The water-blocking plate (15) is an arc-shaped plate structure with a cross-section resembling a C shape. A handle (16) is fixedly provided on the diffuser pipe (17) at the top of the water-blocking plate (15). The handle (16) rotates through the control pipe (11), and the threaded shank (19) rotates through the handle (16).

5. The flow control device for a tap water supply and drain according to claim 4, characterized by The two curved surfaces of the support shaft (18) are respectively fixed with water conveying spirals (21) of different pitch sizes. The two ends of the support shaft (18) are respectively fixed with sealing baffles (20) of different diameter sizes. The size of the sealing baffles (20) matches that of the water conveying spirals (21).

6. The flow control device for a tap water supply and drain according to claim 5, characterized by The diffuser pipe (17) at the top of the water-blocking plate (15) is rotatably engaged with the sealing baffle (20) at the top of the support shaft (18), and the diffuser pipe (17) at the bottom of the water-blocking plate (15) is rotatably engaged with the sealing baffle (20) at the bottom of the support shaft (18).

7. The flow control device for a tap water supply and drain according to claim 6, characterized by The diffuser pipes (17) at both ends of the water-blocking plate (15) rotate through the upper and lower sides of the flow cavity (13), and the outer curved surface of the water-blocking plate (15) is in contact with the water outlet (14).

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