High pressure free forging angle type pressure self-balancing valve

Abstract

The utility model relates to pressure balance valve technical field especially relates to a high pressure free forging angle type pressure self -balancing valve, solved the limitation of balancing valve chamber size in the prior art and the limited spring force, influence pressure setting and fluid flow, influence its control load and prevent the problem of the performance of overrunning. A kind of high pressure free forging angle type pressure self -balancing valve, including valve body, the surface of valve body is connected with inlet pipe, the surface of valve body is connected with discharge pipe, discharge pipe is higher than inlet pipe, the inside of valve body is provided with extrusion cavity, the inside of extrusion cavity is slidably connected with stabilizing plate, the bottom of stabilizing plate is elastically connected with lifting cylinder by main spring, the inside of lifting cylinder is elastically connected with sealing rod by auxiliary spring, sealing rod and the inside of valve body are equipped with sealing mechanism. The utility model can enhance equivalent bias pressure, allow higher pressure setting, increase fluid flow, while maintaining consistent pressure setting, thereby effectively control load and prevent overrunning.

Description

Technical Field

[0001] This utility model relates to the field of pressure balancing valve technology, and in particular to a high-pressure free-angle pressure self-balancing valve. Background Technology

[0002] A pressure balancing valve is a valve device used to regulate the pressure balance in a fluid system. Its core function is to maintain the pressure within the system within a preset range through automatic or manual adjustment, or to balance the pressure differences between different areas or branches, thereby ensuring stable system operation and protecting equipment safety.

[0003] Chinese Patent Publication No. CN222880452U discloses a utility model comprising a valve body, an inlet connector on the left side of the valve body, and an outlet connector on the right side of the valve body. The valve body contains a matching valve ball, with a valve stem at its upper end. The upper end of the valve stem extends upwards to the valve body and has a handle. A lower connector is located on the lower left side of the outlet connector. A matching auxiliary connector is screwed to the lower end of the lower connector. A water-separating seat is located inside the left side of the outlet connector. The water-separating seat divides the internal space of the outlet connector into a left water inlet hole on the left side of the water-separating seat and a right water inlet hole on the right side of the water-separating seat. A corresponding recessed hole is located on the lower surface of the outlet connector, with the bottom of the recessed hole extending to the upper end of the water-separating seat. The right end of the left water inlet hole communicates with the recessed hole. The upper end of the lower connector encloses the lower end opening of the recessed hole. This utility model's automatic pressure balancing valve can automatically adjust the water pressure when it is too low or too high.

[0004] For existing high-pressure free-forged angle pressure self-balancing valves, in actual use, the traditional balancing valve has limited spring force due to the limitation of chamber size, which limits its pressure setting and fluid flow rate, and is easily affected by the pressure change at the outlet, affecting its performance in controlling negative loads and preventing over-limits. In addition, the internal structure of the balancing valve is more complex, resulting in an excessively large size. Utility Model Content

[0005] The purpose of this invention is to provide a high-pressure free-forged angle type pressure self-balancing valve, which solves the problem in the prior art where the limited size of the balancing valve chamber results in limited spring force, affecting pressure setting and fluid flow, and thus affecting its performance in controlling load and preventing over-limit.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-pressure free-forging angle type pressure self-balancing valve includes a valve body, an inlet pipe connected to the surface of the valve body, an outlet pipe connected to the surface of the valve body, the outlet pipe being higher than the inlet pipe, a squeezing chamber opened inside the valve body, a stabilizing plate slidably connected inside the squeezing chamber, a lifting cylinder elastically connected to the bottom of the stabilizing plate via a main spring, a sealing rod elastically connected inside the lifting cylinder via a secondary spring, and a sealing mechanism provided between the sealing rod and the inside of the valve body.

[0008] Preferably, the sealing mechanism includes a sealing disc fixedly connected to the surface of the sealing rod, a balance chamber is provided inside the valve body, a sealing ring is fixedly connected inside the balance chamber, and the bottom of the sealing disc fits against the bottom of the sealing ring.

[0009] Preferably, both the sealing ring and the sealing disc have a tapered cross-section.

[0010] Preferably, a screw is rotatably connected to the top of the stabilizing plate, the screw is threadedly connected to the top of the valve body, and a handle is fixedly connected to the top of the screw.

[0011] Preferably, an anti-tilt rod is provided at the top of the lifting cylinder, and the top of the anti-tilt rod is fixedly connected to the bottom of the stabilizing plate.

[0012] Preferably, the surface of the lifting cylinder is provided with a receiving groove, and a leak-proof ring is fixedly connected inside the receiving groove.

[0013] This utility model has the following beneficial effects:

[0014] During pressure balancing, the sealing rod can be sealed by applying pressure through the main spring and the auxiliary spring. The main spring and the auxiliary spring are configured together inside the compression chamber, which can enhance the equivalent bias pressure, allow for higher pressure settings, increase fluid flow, and maintain a consistent pressure setting, thereby effectively controlling the load and preventing over-limit. This allows the balancing valve to balance higher pressures and ensures the sealing of the balancing chamber with fewer components. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 Schematic cross-sectional view of the middle valve body;

[0018] Figure 3 for Figure 2 A schematic diagram showing the separation of the central sealing disc and the sealing ring;

[0019] Figure 4 for Figure 2 A cross-sectional view of the central lifting cylinder;

[0020] Figure 5 for Figure 2 A bottom-view diagram of the central stabilizing plate.

[0021] In the diagram: 1. Valve body; 2. Inlet pipe; 3. Outlet pipe; 4. Extrusion chamber; 5. Stabilizing plate; 6. Main spring; 7. Lifting cylinder; 8. Secondary spring; 9. Sealing mechanism; 10. Sealing rod; 11. Screw; 12. Handle; 13. Anti-tilting rod; 14. Receiving groove; 15. Leak-proof ring; 901. Sealing disc; 902. Balance chamber; 903. Sealing ring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] Reference Figure 1-5 A high-pressure free-forging angle type pressure self-balancing valve includes a valve body 1. An inlet pipe 2 and a outlet pipe 3 are connected to the surface of the valve body 1. The outlet pipe 3 is higher than the inlet pipe 2. During pressure balancing, the inlet pipe 2 is where fluid enters the valve body 1, while the outlet pipe 3 is where fluid is discharged to achieve balancing when the pressure is high. The valve body 1 has an internal compression chamber 4. A slidably connected stabilizing plate 5 is located inside the compression chamber 4. A lifting cylinder 7 is elastically connected to the bottom of the stabilizing plate 5 via a main spring 6. The lifting cylinder 7 separates the main spring 6 from the auxiliary spring 8, ensuring that although the main spring 6 and the auxiliary spring 8 are in the same direction, they are separated and compress separately, guaranteeing pressure consistency. The lifting cylinder 7 is further connected to the auxiliary spring 8 via a... A sealing rod 10 is elastically connected to a spring 8. A sealing mechanism 9 is provided inside the valve body 1 and the sealing rod 10. When pressure balancing is required, the sealing mechanism 9 is subjected to fluid pressure, which is transmitted to the inside of the lifting cylinder 7 through the sealing rod 10. At this time, the elastic force of the main spring 6 and the auxiliary spring 8 can counteract the pressure on the sealing rod 10 until the pressure on the sealing rod 10 is greater than the elastic force of the main spring 6 and the auxiliary spring 8, thereby causing the sealing mechanism 9 to open and release pressure, thus achieving pressure balancing. The main spring 6 and the auxiliary spring 8 enhance the equivalent pressure, allowing for higher pressure settings and increased flow rates, while maintaining a consistent pressure setting, thereby effectively controlling the load and preventing over-limit, and enabling stable pressure balancing.

[0024] Furthermore, the sealing mechanism 9 includes a sealing disc 901 fixedly connected to the surface of the sealing rod 10. The valve body 1 has a balance chamber 902 inside, and a sealing ring 903 is fixedly connected inside the balance chamber 902. The bottom of the sealing disc 901 fits against the bottom of the sealing ring 903. The spring force of the main spring 6 and the auxiliary spring 8 is transmitted to the sealing disc 901 through the sealing rod 10. When it is necessary to separate the inlet pipe 2 and the outlet pipe 3, the flow of the inlet pipe 2 and the outlet pipe 3 can be blocked by squeezing the sealing ring 903 inside the balance chamber 902 with the sealing disc 901. When the pressure is large and the sealing disc 901 is squeezed and rises, the fluid can pass through the sealing ring 903 and flow from the inlet pipe 2 to the outlet pipe 3 for discharge, thereby facilitating pressure balance.

[0025] Furthermore, both the sealing ring 903 and the sealing disc 901 have conical cross-sections. The conical sealing ring 903 and the sealing disc 901 can better improve the sealing performance, and when the pressure is greater than the elastic force, the fluid can be discharged in time to balance it, ensuring that the fluid is quickly and stably balanced.

[0026] Furthermore, a screw 11 is rotatably connected to the top of the stabilizing plate 5. The screw 11 is threadedly connected to the top of the valve body 1. A handle 12 is fixedly connected to the top of the screw 11. When it is necessary to control the height of the stabilizing plate 5 so that the elastic force of the main spring 6 and the auxiliary spring 8 can be controlled, the screw 11 can be rotated by the handle 12 to raise or lower the screw 11 to control the height of the stabilizing plate 5. This facilitates the adjustment of the pressure received by the sealing rod 10 and enables control of the pressure balance point, preventing the balance point from being controlled under different conditions.

[0027] Furthermore, an anti-tilt rod 13 is provided on the top of the lifting cylinder 7. The top of the anti-tilt rod 13 is fixedly connected to the bottom of the stabilizing plate 5. When the lifting cylinder 7 moves up and down inside the extrusion chamber 4, the anti-tilt rod 13 can ensure the stability of the lifting cylinder 7, thereby facilitating the sealing rod 10 to stably extrude the sealing disc 901 to seal the sealing ring 903.

[0028] Furthermore, the surface of the lifting cylinder 7 is provided with a receiving groove 14, and a leak-proof ring 15 is fixedly connected inside the receiving groove 14. During the lifting and lowering process of the lifting cylinder 7, the leak-proof ring 15 inside the receiving groove 14 can seal the extrusion chamber 4 and prevent fluid from entering the extrusion chamber 4.

[0029] In summary:

[0030] When pressure balancing of the fluid is required using valve body 1, the fluid enters the balancing chamber 902 of valve body 1 through the inlet cylinder. When balancing is needed, the fluid pressure is reduced by discharging through the outlet pipe 3 to achieve balance. If the pressure is insufficient, the main spring 6 inside the squeezing chamber 4 and the secondary spring 8 inside the lifting cylinder 7 apply elastic force to the sealing rod 10, causing the sealing disc 901 on the sealing rod 10 to seal the sealing ring 903, preventing fluid from entering the outlet pipe 3 through the sealing ring 903. Both the sealing disc 901 and the sealing ring 903 are conical, which allows for better sealing while also enabling timely fluid discharge when the pressure is high, ensuring timely pressure balance adjustment. The lifting cylinder 7 is located in the squeezing chamber 4... When moving inside the cavity, the anti-leakage ring 15 inside the receiving groove 14 can be used to seal and prevent fluid from entering the extrusion chamber 4. When the lifting cylinder 7 moves up and down inside the extrusion chamber 4, it can be stabilized by the anti-tilt rod 13 to prevent the lifting cylinder 7 from tilting. When it is necessary to adjust the elastic force to adjust the pressure balance point, the screw 11 can be rotated by turning the handle, so that the screw 11 can drive the stabilizing plate 5 to move up and down, thereby changing the elastic force of the main spring 6 and the auxiliary spring 8 on the sealing plate 901, which facilitates the setting of the pressure balance point. Through the above mechanism, when balancing the fluid pressure, the configuration of the main spring 6 and the auxiliary spring 8 can enhance the equivalent pressure, allowing for higher pressure settings and increased flow, while maintaining a consistent pressure setting, thereby effectively controlling the load and preventing over-limit. It can balance higher fluid pressure and can separate the inlet pipe 2 and the outlet pipe 3 with fewer structures, which can facilitate sealing when the pressure is insufficient and prevent fluid leakage when the pressure is insufficient.

[0031] 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 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-pressure free-forged angle type pressure self-balancing valve, comprising a valve body (1), characterized in that, The surface of the valve body (1) is connected to an inlet pipe (2), and the surface of the valve body (1) is connected to an outlet pipe (3). The outlet pipe (3) is higher than the inlet pipe (2). The valve body (1) has an extrusion chamber (4) inside. The extrusion chamber (4) is slidably connected to a stabilizing plate (5). The bottom of the stabilizing plate (5) is elastically connected to a lifting cylinder (7) via a main spring (6). The lifting cylinder (7) is elastically connected to a sealing rod (10) via a secondary spring (8). The sealing rod (10) and the valve body (1) are provided with a sealing mechanism (9).

2. The high-pressure free-forged angle type pressure self-balancing valve according to claim 1, characterized in that, The sealing mechanism (9) includes a sealing disc (901) fixedly connected to the surface of the sealing rod (10), and a balance chamber (902) is provided inside the valve body (1). A sealing ring (903) is fixedly connected inside the balance chamber (902), and the bottom of the sealing disc (901) is in contact with the bottom of the sealing ring (903).

3. A high-pressure free-forged angle type pressure self-balancing valve according to claim 2, characterized in that, Both the sealing ring (903) and the sealing disc (901) have conical cross-sections.

4. A high-pressure free-forged angle type pressure self-balancing valve according to claim 1, characterized in that, The top of the stabilizing plate (5) is rotatably connected to a screw (11), the screw (11) is threadedly connected to the top of the valve body (1), and a handle (12) is fixedly connected to the top of the screw (11).

5. A high-pressure free-forged angle type pressure self-balancing valve according to claim 1, characterized in that, An anti-tilt rod (13) is provided on the top of the lifting cylinder (7), and the top of the anti-tilt rod (13) is fixedly connected to the bottom of the stabilizing plate (5).

6. A high-pressure free-forged angle type pressure self-balancing valve according to claim 1, characterized in that, The surface of the lifting cylinder (7) is provided with a receiving groove (14), and a leak-proof ring (15) is fixedly connected inside the receiving groove (14).

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