Constant flow valve

Abstract

The utility model discloses a constant flow valve which is characterized by further comprising a constant flow valve element arranged in a constant flow valve body, the constant flow valve element comprises a valve body and a flow dividing framework connected with the valve body, a plurality of flow channels are formed between the flow dividing framework and the valve body, the flow channels are divided into water inlets and water outlets, and the water inlets are communicated with the water outlets. Sealing rings I which are deformed under high pressure to seal the water inlets of the plurality of flow channels are mounted on the flow channels; the through-flow area of the flow channel is automatically adjusted through deformation of the first sealing ring under high pressure, the influence of pressure fluctuation on flow is effectively compensated, it can be ensured that constant flow output is achieved under different pressure conditions without a complex mechanical structure or an electronic control device, the structure is simple, response is rapid, and cost is low. And the production cost and the maintenance difficulty are also reduced.

Description

Technical Field

[0001] This utility model relates to the field of constant flow valve technology, specifically a constant flow valve. Background Technology

[0002] In existing fluid transmission systems, the flow rate of fluid often changes due to fluctuations in water pressure. For example, in a household water supply system, when multiple taps are turned on at the same time during peak water usage periods, the water pressure decreases, resulting in a smaller water flow. Conversely, during off-peak water usage periods, the water pressure increases, leading to a larger water flow. This unstable flow rate not only affects the user experience but may also damage some equipment that requires high flow stability.

[0003] Most constant flow valves on the market currently achieve constant flow through complex mechanical structures or electronic control devices. These constant flow valves suffer from problems such as complex structure, high cost, and difficult maintenance. For example, some electronically controlled constant flow valves rely on a power source and cannot function properly once the power is cut off. Meanwhile, some mechanically structured constant flow valves are prone to wear after long-term use, leading to a decrease in constant flow performance. There is an urgent need for a constant flow valve that is simple in structure, low in cost, and can stably achieve constant flow function. Therefore, a constant flow valve is proposed. Utility Model Content

[0004] The main purpose of this utility model is to provide a solution that can effectively address the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a constant flow valve, comprising a constant flow valve body, caps clamped at both ends of the constant flow valve body, claws installed on the caps, and a sealing ring disposed within the constant flow valve body, characterized in that: it further comprises a constant flow valve core disposed within the constant flow valve body, the constant flow valve core comprising a flow divider frame connected to the valve body, the flow divider frame and the valve body forming several flow channels, the flow channels being divided into inlets and outlets, and a sealing ring being installed on the flow channels to seal the inlet portion of the several flow channels due to deformation caused by high pressure.

[0006] Preferably, a positioning ring for positioning the sealing ring extends from one end of the diversion frame.

[0007] Preferably, a sealing ring 2 is provided between the inner wall of the constant flow valve body and the outer wall of the constant flow valve core.

[0008] Preferably, the outer wall of the constant flow valve core is provided with an arc-shaped groove that matches the sealing ring.

[0009] Preferably, the constant flow valve body is provided with a retaining ring for positioning the constant flow valve core.

[0010] Preferably, the constant flow valve body has a locking ring inside the claw at the water inlet end for fixing the pipe.

[0011] This invention has the following advantages: by automatically adjusting the flow area of ​​the flow channel through the deformation of the sealing ring under high pressure, the influence of pressure fluctuation on the flow rate is effectively compensated. It can ensure constant flow output under different pressure conditions without the need for complex mechanical structures or electronic control devices. It has a simple structure, rapid response, and also reduces production costs and maintenance difficulty. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is an exploded view of this utility model;

[0014] Figure 3 This is a cross-sectional view of the present invention;

[0015] Figure 4 This is a cross-sectional view of the constant flow valve core of this utility model;

[0016] Figure 5 This is a schematic diagram of the cross-sectional structure of the constant flow valve core of this utility model.

[0017] Legend: 1. Constant flow valve body; 2. Cap; 3. Claw; 31. Locking tooth ring; 4. Sealing ring; 5. Constant flow valve core; 51. Valve body; 52. Diverter frame; 53. Flow channel; 531. Inlet; 532. Outlet; 54. Sealing ring one; 55. Positioning ring; 56. Arc groove; 6. Sealing ring two; 7. Retaining ring. Detailed Implementation

[0018] 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.

[0019] like Figure 1-5As shown, a constant flow valve includes a constant flow valve body 1, caps 2 clamped at both ends of the constant flow valve body 1, claws 3 mounted on the caps 2, and a sealing ring 4 disposed within the constant flow valve body 1. The valve is characterized by further including a constant flow valve core 5 disposed within the constant flow valve body 1. The constant flow valve core 5 includes a flow divider frame 52 connected to a valve body 51. A plurality of flow channels 53 are formed between the flow divider frame 52 and the valve body 51. The flow channels 53 are divided into inlet ports 531 and outlet ports 532. A sealing ring 54, which is deformed under high pressure and seals the inlet ports 531 of the flow channels 53, is installed on each flow channel 53. During the operation of the constant flow valve, when the fluid pressure increases, the thrust generated by the fluid drives the sealing ring 54 to press against the flow divider frame 52. The sealed ring 54, after being subjected to force, undergoes elastic deformation along both sides. The deformed sealing ring 54 acts like an adjustable valve, blocking part of the diameter of the inlet 531 of the flow channel 53. This reduces the flow area of ​​the inlet 531, thus decreasing the water flow rate but increasing the flow velocity. Ultimately, this ensures that the outflow rate per unit time is the same as under normal pressure. When the fluid pressure is normal, the sealing ring 54 remains unchanged, and the inlet 531 of the flow channel 53 is completely unobstructed, with both flow rate and velocity at standard operating conditions. Therefore, regardless of the fluid pressure, the deformation of the sealing ring 54 under high pressure adjusts the flow area of ​​the flow channel 53, effectively compensating for the impact of pressure fluctuations on the flow rate. Without complex mechanical structures or electronic control devices, it ensures constant flow output under different pressure conditions. The structure is simple, the response is rapid, and it also reduces production costs and maintenance difficulty.

[0020] In one embodiment, a positioning ring 55 extends from one end of the flow divider frame 52 to position the sealing ring 54, preventing the sealing ring 54 from shifting during operation. For example, when the constant flow valve flows in reverse, the sealing ring 55 may easily detach from the positioning ring 55.

[0021] In one embodiment, a second sealing ring 6 is provided between the inner wall of the constant flow valve body 1 and the outer wall of the constant flow valve core 5; the outer wall of the constant flow valve core 5 is provided with an arc-shaped groove 56 adapted to the second sealing ring 6; this improves the sealing performance between the constant flow valve body 1 and the constant flow valve core 5, avoids fluid leakage, and improves the reliability and service life of the constant flow valve.

[0022] In one embodiment, the constant flow valve body 1 is provided with a retaining ring 7 for positioning the constant flow valve core 5, ensuring that the constant flow valve core 5 can work stably under complex working conditions.

[0023] In one embodiment, the claw 3 on the water inlet end of the constant flow valve body 1 is provided with a locking tooth ring 31 for fixing the pipe. When the pipe enters the constant flow valve body 1, the small piece on the locking tooth ring 31 is locked on the pipe to prevent the pipe from being pulled out in the opposite direction, thus ensuring that the constant flow valve maintains stable operation during long-term use.

[0024] In use, the constant flow valve core 5, retaining ring 7, and sealing ring 4 are first placed into the constant flow valve body 1 in sequence. Then, the cap 2 is connected to the constant flow valve body 1 by ultrasonic welding or pressing. Next, the claw 3 is also connected to the cap 2 by ultrasonic welding or pressing. The protrusions at the ends of the constant flow valve body 1 and the claw 3 prevent the constant flow valve core 5, retaining ring 7, and sealing ring 4 from detaching from the constant flow valve body 1 when pulled externally. Then, the pipe is inserted into both ends of the constant flow valve body 1. When fluid enters from the inlet end of the constant flow valve body 1, ... Under normal pressure, the sealing ring 54 is in its initial state and will not block the inlet hole 531 of the flow channel 53. The fluid flows out smoothly through the outlet 532 of the flow channel 53, maintaining normal flow output. If the fluid pressure increases, the fluid pressure acts on the sealing ring 54, causing it to deform. Part of the inlet 531 of the flow channel 53 is blocked by the deformed sealing ring 54, thereby reducing the flow area of ​​the flow channel 53, limiting the fluid flow, and accelerating the flow speed of the fluid, so that the output flow of the constant flow valve remains constant, realizing constant flow control.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A constant flow valve, comprising a constant flow valve body (1), caps (2) clamped at both ends of the constant flow valve body (1), claws (3) mounted on the caps (2), and a sealing ring (4) disposed within the constant flow valve body (1), characterized in that: It also includes a constant flow valve core (5) disposed in the constant flow valve body (1). The constant flow valve core (5) includes a flow divider frame (52) connected to the valve body (51). The flow divider frame (52) and the valve body (51) form several flow channels (53). The flow channels (53) are divided into an inlet (531) and an outlet (532). A sealing ring (54) is installed on the flow channels (53) to seal the inlet (531) of several flow channels (53) due to deformation caused by high pressure.

2. A constant flow valve according to claim 1, wherein: The diversion frame (52) has a positioning ring (55) extending from one end to position the sealing ring (54).

3. A constant flow valve according to claim 1, wherein: A sealing ring 2 (6) is provided between the inner wall of the constant flow valve body (1) and the outer wall of the constant flow valve core (5).

4. A constant flow valve according to claim 3, wherein: The outer wall of the constant flow valve core (5) is provided with an arc groove (56) that is compatible with the sealing ring (6).

5. A constant flow valve according to claim 3, wherein: The constant flow valve body (1) is provided with a retaining ring (7) for positioning the constant flow valve core (5).

6. A constant flow valve according to claim 1, wherein: The constant flow valve body (1) has a locking ring (31) for fixing the pipe inside the claw (3) on the water inlet end.

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