Adjustable water outlet valve

Abstract

The utility model discloses an adjustable water outlet valve relates to water outlet valve technical field, including valve seat, the inside rotation of valve seat and is installed with the pivot, the outer wall of pivot is installed with the rotating vane, one end of valve seat is provided with adjustable mechanism, adjustable mechanism includes the protection seat, one end screw thread connection of protection seat has no.

Description

Technical Field

[0001] This utility model relates to the field of water outlet valve technology, and in particular to an adjustable water outlet valve. Background Technology

[0002] In scenarios lacking external power (such as electricity or manual operation space), such as agricultural irrigation, temporary industrial cooling, and outdoor gardening, fluid flow control has long relied on traditional non-powered valves or simple regulating devices. However, existing technologies suffer from low power conversion efficiency, unstable speed control, and insufficient emergency safety, making it difficult to meet the actual needs of "no power, stable flow, and high reliability." The specific technical pain points can be discussed from the following three aspects: However, in existing technologies, traditional non-powered valves (such as bypass valves for drip irrigation tapes in agricultural irrigation) only limit the flow rate through a preset small-diameter flow channel, without converting the pressure difference of the upstream fluid into adjustable mechanical power. When the upstream water pressure fluctuates (such as when multiple nozzles are turned on at the same time, causing the water pressure to drop from 0.5MPa to 0.1MPa), the flow rate will change linearly with the pressure, which cannot adapt to the precise water requirements of crops at different growth stages. Utility Model Content

[0003] The purpose of this utility model is to solve the problems existing in the prior art by proposing an adjustable water outlet valve.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable water outlet valve, comprising a valve seat, a rotating shaft rotatably mounted inside the valve seat, rotating blades mounted on the outer wall of the rotating shaft, an adjustable mechanism provided at one end of the valve seat, the adjustable mechanism comprising a protective seat, a No. 2 screw threadedly connected to one end of the protective seat, a guide cylinder mounted on the inner wall of the protective seat, a concave circular seat welded to one end of the rotating shaft, a circular push plate provided on one side of the guide cylinder, a limit post welded to one end of the circular push plate, a top plate slidably mounted inside the guide cylinder, and a support spring mounted at one end of the top plate.

[0005] Preferably, one end of the second screw is welded with a rotating handle, and one end of the protective seat is fixed to one end of the valve seat.

[0006] Preferably, one end of the limiting post is in contact with the inner wall of the concave circular seat, and the other end of the supporting spring is in contact with one end of the circular push plate.

[0007] Preferably, the other end of the second screw passes through one end of the guide cylinder and contacts one end of the top plate.

[0008] Preferably, the rotating blade is disposed inside the valve seat.

[0009] Preferably, a connecting block is fixedly installed on one side of the valve seat, a gate is provided inside the connecting block, and a screw is threaded to one end of the connecting block.

[0010] Preferably, one end of the first screw is welded with a round shank, and the other end of the first screw is fixed to one end of the gate plate.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, dual-stage adjustment ensures accuracy: the rotating blade achieves basic flow regulation by changing the flow channel area, and the adjustable mechanism stabilizes the blade speed through damping control, avoiding the problem of sudden flow changes when adjusting with traditional valves. Secondly, by combining the rotation angle of the rotating blade with the damping level, the flow regulation range can be covered, adapting to multiple scenarios such as agricultural irrigation, industrial cooling, and home gardening, without the need to purchase valves separately for different scenarios, thus reducing equipment investment costs.

[0012] 2. In this utility model, the trapezoidal thread design makes the screw rotation easier. When women or the elderly turn the round handle or the rotary handle, the labor intensity is reduced compared to traditional valves. Secondly, the combination of stainless steel body, Inconel alloy spring and fluororubber seals improves the valve's tolerance range for temperature, salt spray environment and acid and alkali fluids. Compared with traditional cast iron valves, it reduces the cost of frequent valve replacements. Attached Figure Description

[0013] Figure 1 A three-dimensional structural diagram of an adjustable water outlet valve is provided for this utility model; Figure 2 A three-dimensional half-sectional structural diagram of an adjustable water outlet valve is provided for this utility model. Figure 3 This utility model provides a three-dimensional top view of the internal structure of an adjustable water outlet valve. Figure 4 This utility model presents a schematic diagram of the internal structure of the guide cylinder of an adjustable water outlet valve.

[0014] Legend: 1. Valve seat; 11. Connecting block; 12. Round handle; 13. Rotating shaft; 14. Rotating blade; 15. Gate plate; 16. No. 1 screw; 2. Adjustable mechanism; 21. Protective seat; 22. No. 2 screw; 23. Guide cylinder; 24. Concave round seat; 25. Round push plate; 26. Limiting post; 27. Support spring; 28. Top plate; 29. ​​Rotating handle. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0017] Example: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides an adjustable water outlet valve, including a valve seat 1. A rotating shaft 13 is rotatably mounted inside the valve seat 1. Rotating blades 14 are mounted on the outer wall of the rotating shaft 13. An adjustable mechanism 2 is provided at one end of the valve seat 1. The adjustable mechanism 2 includes a protective seat 21. A second screw 22 is threaded to one end of the protective seat 21. A guide cylinder 23 is mounted on the inner wall of the protective seat 21. A concave circular seat 24 is welded to one end of the rotating shaft 13. A circular push plate 25 is provided on one side of the guide cylinder 23. One end of the guide cylinder 23 is welded with a limiting post 26. A top plate 28 is slidably installed inside the guide cylinder 23. A support spring 27 is installed at one end of the top plate 28. A handle 29 is welded to one end of the second screw 22. One end of the protective seat 21 is fixed to one end of the valve seat 1. One end of the limiting post 26 is in contact with the inner wall of the concave round seat 24. The other end of the support spring 27 is in contact with one end of the round push plate 25. The other end of the second screw 22 passes through one end of the guide cylinder 23 and is in contact with one end of the top plate 28. Rotating blade 14 is installed inside valve seat 1. A connecting block 11 is fixedly installed on one side of valve seat 1. A gate 15 is installed inside the connecting block 11. One end of the connecting block 11 is threadedly connected to a screw 16. One end of the screw 16 is welded with a round shank 12. The other end of the screw 16 is fixed to one end of the gate 15.

[0018] The specific settings and functions of this embodiment are described below. The core load-bearing components, valve seat 1, connecting block 11, rotating shaft 13, rotating blade 14, screw 16, and screw 22, are made of 304 stainless steel with passivation treatment (salt spray test ≥480h), which is suitable for humid / corrosive scenarios such as agricultural irrigation and industrial cooling, and avoids rusting that may cause jamming. Elastic and sealing components: The support spring 27 is made of Inconel alloy material, which is suitable for outdoor scenes with large temperature differences; a nitrile rubber sealing ring (oil and water resistant) is added at the contact point between the round push plate 25 and the inner wall of the protective seat 21 to prevent fluid from seeping into the interior of the adjustable mechanism 2; the edge of the rotating blade 14 is wrapped with a polytetrafluoroethylene wear-resistant layer to reduce frictional wear with the inner wall of the valve seat 1. Operating components: The round handle 12 and the rotating handle 29 are injection molded from ABS engineering plastic (with anti-slip ripples on the surface), which are lightweight and insulated, avoiding the risk of hand slippage or electric shock during outdoor operation (suitable for industrial scenarios with live electrical environments). Shaft 13 sealing: A double-layer skeleton oil seal (dustproof on the inside and fluid leakageproof on the outside) is installed at the rotating connection between shaft 13 and valve seat 1. The oil seal material is fluororubber (resistant to chemical corrosion) to prevent fluid leakage from contaminating the adjustable mechanism 2. Leak-proof connecting block 11: U-shaped rubber sealing grooves are provided on both sides of the gate 15, with embedded silicone sealing strips. When the gate 15 is fully closed, the sealing strips fit tightly against the inner wall of the connecting block 11, meeting the sealing requirements during maintenance. Damping adjustment scale: The outer wall of the protective seat 21 is engraved with a damping adjustment scale (0-10 levels, corresponding to the compression of the support spring 27 0-20mm). The outer side of the handle 29 is equipped with an indicator line. Users can accurately match the damping level through the scale (e.g., use 8-10 levels for high damping during the seedling stage of agricultural irrigation, and 3-5 levels for medium damping during the mature stage), avoiding the accuracy deviation caused by adjustment based on experience. Effort-saving transmission optimization: Both screw 16 and screw 22 adopt trapezoidal threads, which reduce the rotational torque by 30% compared with ordinary triangular threads. Users need less effort when turning the round handle 12 and the rotating handle 29, making it suitable for elderly people, women and other operators. Overcurrent protection: A stainless steel filter screen is installed at the inlet of the internal flow channel of valve seat 1. The edge of the filter screen can be removed by buckle. It can filter mud and impurities in the water to avoid clogging the rotating blade 14 or scratching the seal. Pressure differential sensors are installed on both sides of the filter screen. When the filter screen is clogged and the pressure difference is ≥0.2MPa, the sensor triggers an external alarm light (requires additional circuitry) to remind the user to clean the filter screen. Overload protection design: A limiting sleeve (made of polycarbonate) is provided on the outside of the support spring 27. The length of the limiting sleeve corresponds to the maximum safe compression of the spring, preventing the spring from breaking due to overload caused by excessive rotation of the handle 29 by the user, thus improving structural safety.

[0019] The usage and working principle of this device: Because water pressure may fluctuate with upstream conditions (such as water pressure drop caused by multiple sprinklers being turned on simultaneously during agricultural irrigation, or pump group pressure changes during industrial cooling), relying solely on water pressure drive can easily lead to unstable blade speed and sudden changes in flow rate. The adjustable mechanism 2 provides variable damping force through spring pressure to suppress excessively fast blade rotation and achieve stable control of speed and flow rate. This is the key aspect of non-powered regulation. Generation and transmission of damping force: The support spring 27 is coaxially sleeved on the outside of the guide cylinder 23. One end is fixed to the inner wall step of the protective seat 21, and the other end is tightly fitted to the circular push plate 25. In its natural state, the spring is in a pre-compressed state, applying a continuous axial thrust to the circular push plate 25. Three to four limiting posts 26 (evenly distributed circumferentially) at one end of the circular push plate 25 are inserted into the arc-shaped groove of the concave circular seat 24 (the concave circular seat 24 is welded and fixed to the rotating shaft 13). The thrust of the support spring 27 is transmitted to the concave circular seat 24 through the limiting posts 26, and is converted into a damping force that hinders the rotation of the rotating shaft 13. The greater the damping force, the greater the resistance that the blade needs to overcome when rotating, and the slower the rotation speed. On-demand adjustment of damping force (adapting to different water pressure scenarios): Users can adjust the damping force by rotating handle 29 to adapt to the speed control requirements under different water pressures. When the upstream water pressure is high, rotating the handle 29 drives the second screw 22 to move axially along the internal thread of the protective seat 21, pushing the top plate 28 to compress the support spring 27. The thrust of the support spring 27 increases, and the damping force increases accordingly, which can reduce the blade speed from 8r / min when there is no damping to 2r / min, thus avoiding a sudden increase in flow rate due to excessive speed. When the upstream water pressure is low (e.g., 0.1 MPa at the end of agricultural irrigation), the handle 29 is rotated in the opposite direction, the second screw 22 retracts, the spring compression decreases (returns to 5-8 mm), the damping force decreases, ensuring that the blade can still rotate under low pressure difference (the speed is maintained at 3-5 r / min), and avoiding blade jamming due to excessive damping; During adjustment, the scale (0-10 levels) on the outer wall of the protective seat 21 can assist in precise control - "10 levels" corresponds to the maximum damping (high water pressure scenario), and "0 levels" corresponds to the minimum damping (low water pressure scenario). Users can quickly adapt to the working conditions without professional tools.

[0020] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. An adjustable water outlet valve, comprising a valve seat (1), characterized in that: The valve seat (1) is rotatably mounted with a rotating shaft (13). The outer wall of the rotating shaft (13) is equipped with rotating blades (14). One end of the valve seat (1) is provided with an adjustable mechanism (2). The adjustable mechanism (2) includes a protective seat (21). One end of the protective seat (21) is threadedly connected to a second screw (22). The inner wall of the protective seat (21) is equipped with a guide cylinder (23). One end of the rotating shaft (13) is welded with a concave round seat (24). One side of the guide cylinder (23) is provided with a round push plate (25). One end of the round push plate (25) is welded with a limit post (26). The guide cylinder (23) is slidably mounted with a top plate (28). One end of the top plate (28) is equipped with a support spring (27).

2. The adjustable water outlet valve according to claim 1, characterized in that: One end of the second screw (22) is welded with a handle (29), and one end of the protective seat (21) is fixed to one end of the valve seat (1).

3. An adjustable water outlet valve according to claim 2, characterized in that: One end of the limiting post (26) is in contact with the inner wall of the concave round seat (24), and the other end of the supporting spring (27) is in contact with one end of the round push plate (25).

4. An adjustable water outlet valve according to claim 3, characterized in that: The other end of the second screw (22) passes through one end of the guide cylinder (23) and contacts one end of the top plate (28).

5. An adjustable water outlet valve according to claim 1, characterized in that: The rotating blade (14) is disposed inside the valve seat (1).

6. An adjustable water outlet valve according to claim 1, characterized in that: A connecting block (11) is fixedly installed on one side of the valve seat (1). A gate plate (15) is provided inside the connecting block (11). A screw rod (16) is threaded to one end of the connecting block (11).

7. An adjustable water outlet valve according to claim 6, characterized in that: One end of the first screw (16) is welded with a round shank (12), and the other end of the first screw (16) is fixed to one end of the gate plate (15).

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