A siphon valve capable of precisely regulating flow

Abstract

The utility model relates to valve technical field, concretely relates to a siphon valve that can precision regulation flow, it contains main part, two siphon passageways are set up in main part, is equipped with adjusting mechanism on main part, and adjusting mechanism is used for to its one passageway opening degree regulation, this adjusting mechanism contains the adjusting valve core that is inserted in main part along the vertical direction, the adjusting hole is opened in adjusting valve core, the adjusting disc is rotatably installed on main part, and adjusting disc drive connection is connected to adjusting valve core, the valve is divided into two passageways through this application, and thus adjustable passageway is smaller compared to the whole, and the subdivision fine adjustment mechanism of gear is combined, and the effective flow area change corresponding to unit angular is smaller, thereby realize higher flow regulation precision, thereby manual mode can also realize high-precision regulation, and high-precision servo motor need not be added, and the use cost is relatively lower, and simple structure.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a siphon valve that can precisely adjust the flow rate. Background Technology

[0002] Siphon valves are devices that utilize height differences and atmospheric pressure to transport fluids. They leverage the Bernoulli effect to increase the flow rate and volume of liquids with the same power. Unlike ordinary valves, siphon valves are primarily used to regulate flow rate, not to open or completely shut off. In agricultural equipment, such as pesticide spraying equipment, siphon valves are often single-channel, with the overall flow rate adjusted by the valve core opening. However, this method only utilizes a portion of the adjustment stroke. Manual adjustment offers low precision in valve core opening control, necessitating the use of high-precision servo drives to regulate valve flow. For example, Chinese utility model patent CN220414430U, while describing a large-scale water flow control device, also employs a siphon valve, which uses electric drive control. This method requires the purchase of electrical control components and a customized electrical control system, resulting in high implementation costs. Utility Model Content

[0003] The purpose of this utility model is to provide a reasonably designed siphon valve that can precisely adjust the flow rate, which can solve the above-mentioned defects and deficiencies of the existing technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a main body, two siphon channels are opened inside the main body, and an adjustment mechanism is provided on the main body. The adjustment mechanism is used to adjust the opening degree of one of the channels. The adjustment mechanism includes an adjustment valve core inserted vertically into the main body. An adjustment hole is opened inside the adjustment valve core. An adjustment disc is rotatably installed on the main body. The adjustment disc is driven to be connected to the adjustment valve core.

[0005] Preferably, the outer side of the rotating rod below the adjusting disc is evenly provided with teeth along the circumference, the top of the adjusting valve core is connected to an adjusting wheel, the outer side of the adjusting wheel is provided with driving teeth, and it meshes with the teeth mentioned above.

[0006] Preferably, an adjustment scale is provided above the adjustment disc.

[0007] Preferably, the main body is further provided with a positioning post mounted upwards by a spring, and several grooves are opened on the lower side of the adjusting plate, with the top of the positioning post resting in one of the grooves.

[0008] Preferably, the top of the regulating valve core is provided with a snap-fit ​​part, and the regulating wheel has a snap-fit ​​hole inside, which snaps into the top of the regulating valve core.

[0009] The beneficial effects of this utility model after adopting the above structure are: 1. This application divides the valve into two channels, making the adjustable channel smaller than the whole. Combined with the gear fine-tuning mechanism, the effective flow area changes less per unit angle, thereby achieving higher flow regulation accuracy. High-precision regulation can also be achieved manually without the need for a high-precision servo motor, resulting in relatively low cost and simple structure.

[0010] 2. This application uses two channels, one to maintain a fixed flow and the other to fine-tune the flow rate. Therefore, the disturbance to the system pressure during the adjustment process is small and stability can be maintained. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the external structure of this utility model after installation; Figure 2 This is a schematic diagram of the installation method of this utility model; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a longitudinal sectional view of the present invention.

[0012] Explanation of reference numerals in the attached figures: 1. Main body; 2. Adjusting valve core; 3. Adjusting hole; 4. Snap-fit ​​part; 5. Sealing ring; 6. Adjusting wheel; 7. Positioning pin; 8. Spring; 9. Adjusting disc; 10. Adjusting scale; 11. Drive gear. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] See Figure 1As shown in the figure, it includes a main body 1 with two siphon channels. An adjustment mechanism is provided on the main body 1 to adjust the opening of one of the channels. This mechanism includes a regulating valve core 2 inserted vertically into the main body 1 to regulate the flow rate of the channel. Sealing rings 5 ​​are located on the upper and lower sides of the channel on the regulating valve core 2. An adjusting hole 3 is provided inside the regulating valve core 2. An adjusting disc 9 is rotatably mounted on the main body 1. An adjusting scale 10 is provided above the adjusting disc 9 for easy gripping and angle comparison. The adjusting disc 9 is driven to the regulating valve core 2. The outer side of the rotating rod below the adjusting disc 9 has evenly spaced teeth along its circumference. An adjusting wheel 6 is connected to the top of the regulating valve core 2. Driving teeth 11 are provided on the outer side of the adjusting wheel 6 and mesh with the aforementioned teeth. A snap-fit ​​part 4 is provided at the top of the regulating valve core 2, and a snap-fit ​​hole is provided inside the adjusting wheel 6 to snap onto the top of the regulating valve core 2. Figure 2 As shown, the adjustment hole 3 is also provided with multiple limiting protrusions, and the bottom of the adjustment wheel 6 is also provided with matching slots. When the two are connected, the limiting protrusions can keep them from being misaligned in the circumferential direction, that is, the rotation angle of the adjustment valve core 2 and the adjustment wheel 6 is consistent. The main body 1 is also equipped with a positioning post 7 mounted upwards via a spring 8. Several grooves are opened on the lower side of the adjustment disk 9. The top of the positioning post 7 rests in one of the grooves. When the adjustment disk 9 is rotated, the positioning post 7 is pushed downwards, which compresses the spring 8 and moves it out of the groove and then into another groove. Therefore, when the adjustment disk 9 is rotated, an equiangular gear lever can be generated. The user can confirm the adjustment angle based on sound and tactile feedback.

[0015] In use, rotating the adjustment dial 10, which in turn drives the adjustment wheel 6 to rotate via the adjustment dial 9 and drive gear 11, thereby rotating the adjustment valve core 2. This allows the flow rate through the channel to be adjusted by the cross-sectional dimensions of the adjustment hole 3 and the two side channels. Because only one channel is adjusted, the flow rate adjustment per degree of rotation is smaller compared to traditional valves for the same adjustment angle stroke, resulting in higher flow rate adjustment accuracy. For example, if the valve has two channel openings CV1 and CV2, this application adjusts CV2, with the total opening CV... 总= CV1 + CV2, flow rate Q ≈ ΔCV2 * √ΔP, where P is the pressure difference before and after valve regulation, and CV2 is replaced by a larger CV. 总 This will increase Q. The above formula is only for understanding the precision relationship of valve adjustment. In actual application, P will change within a small range during the adjustment process, but the change is small. Therefore, it is considered as a constant value here, and it will not affect the conclusion.

[0016] The installation, connection, or setting methods of the components not detailed above are all common mechanical methods, and the specific structure, model, and coefficient indicators of all their components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be elaborated further.

[0017] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A siphon valve capable of precisely adjusting flow rate, comprising a body (1), characterized in that: Two siphon channels are opened inside the main body (1). An adjustment mechanism is provided on the main body (1). The adjustment mechanism is used to adjust the opening of one of the channels. The adjustment mechanism includes an adjustment valve core (2) inserted vertically into the main body (1). An adjustment hole (3) is opened inside the adjustment valve core (2). An adjustment disc (9) is rotatably installed on the main body (1). The adjustment disc (9) is driven to be connected to the adjustment valve core (2).

2. The siphon valve with precisely adjustable flow rate according to claim 1, characterized in that: The outer side of the rotating rod below the regulating disc (9) is evenly provided with teeth along the circumference. The top of the regulating valve core (2) is connected to the regulating wheel (6). The outer side of the regulating wheel (6) is provided with driving teeth (11), which mesh with the teeth mentioned above.

3. A siphon valve with precisely adjustable flow rate according to claim 1, characterized in that: An adjustment scale (10) is provided above the adjustment plate (9).

4. A siphon valve capable of precisely adjusting flow rate according to claim 2, characterized in that: The main body (1) is also equipped with a positioning post (7) mounted upwards by a spring (8), and several grooves are opened on the lower side of the adjusting plate (9), with the top of the positioning post (7) resting in one of the grooves.

5. A siphon valve capable of precisely adjusting flow rate according to claim 2, characterized in that: The top of the regulating valve core (2) is provided with a snap-fit ​​part (4), and the regulating wheel (6) has a snap-fit ​​hole and snaps onto the top of the regulating valve core (2).

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