Adjustable speed regulating valve

Abstract

The invention relates to the technical field of adjustable speed regulating valves, in particular to an adjustable speed regulating valve which comprises a valve seat, a gland, a bonnet and an air pipe connector, the valve seat and the gland are fixed through a fixing screw, the valve seat is provided with a fluid inlet and a fluid outlet, a piston rod capable of moving in the radial direction is arranged in a cavity formed by the valve seat and the gland, and the valve bonnet is arranged in the cavity. According to the rapid filling device, the filling speed can be rapidly adjusted according to different filling liquids while the filling speed is guaranteed, the rapid filling device does not need to be disassembled and assembled again, time and labor are saved, and the service life is longer.

Description

Technical Field

[0001] The present invention relates to the field of filling equipment, and particularly to an adjustable speed control valve. Background Art

[0002] During the filling process of carbonated beverages and beer, when the flow rate is too fast, the gas in the carbonated beverages and beer will be released, resulting in the phenomenon of anti-foaming in the bottle after filling. In the prior art, in order to prevent anti-foaming during the filling process, a speed control valve is used to reduce the filling speed. However, for different types of carbonated beverages and beer, the distance of the piston inside the existing speed control valve needs to be adjusted, and adjusting the distance of the piston inside the valve requires disassembling and reassembling the speed control valve, which is time-consuming and laborious, and will also cause the wear of the sealing ring, affecting the sealing performance. In addition, some adjustable control valves that use a gas-driven diaphragm to push the piston rod have the problems of being not durable and leaking air after aging. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an adjustable flow-limiting valve that is convenient for adjusting the piston distance and durable.

[0004] To achieve the above purpose, the present invention provides an adjustable speed control valve, including a valve seat, a gland, a valve cap, an air pipe joint, and a valve core. The valve seat and the gland are fixed by fixing screws. The valve seat is provided with a fluid inlet and a fluid outlet. A piston rod that can move radially is arranged in the cavity formed by the valve seat and the gland. The upper part of the gland is provided with an air hole, and the inner wall of the air hole is provided with internal threads. The air pipe joint is threadedly connected to the through hole. It is characterized in that: a concave platform is arranged at the center of the end of the gland, an external thread is arranged on the outside of the end of the gland, the valve cap is threadedly connected to the outside of the end of the gland, a through hole with the diameter of the piston rod is arranged at the end of the gland, the end of the piston rod passes through the through hole of the gland and is threadedly connected with an adjusting nut and a fixing nut. A sealing bracket assembly and a plug are arranged in the cavity. Through holes are arranged at the centers of the sealing bracket assembly and the plug. The piston rod passes through the through holes of the sealing bracket assembly and the plug and is threadedly connected to the valve core. A step is arranged in the middle of the piston rod, and the step is arranged between the sealing bracket assembly and the plug. A spring is arranged between the step and the plug. The sealing bracket assembly can drive the piston rod to move radially under the push of gas.

[0005] Further, a groove is arranged in the through hole of the gland behind the air hole, and a sealing component is arranged in the groove.

[0006] Further, sealing components are arranged on the outside of the sealing bracket assembly, and a sealing ring is arranged at the connection between the inside of the sealing bracket assembly and the piston rod.

[0007] Further, the plug and the valve core are engaged in the engaging structure formed by the splicing of the valve seat and the gland.

[0008] Further, a limiting groove is provided outside the plug through hole, and one end of the spring is sleeved in the limiting groove.

[0009] Further, the adjusting nut and the fixing nut are smaller in diameter than the concave platform, and the adjusting nut and the fixing nut can enter the concave platform.

[0010] Further, the middle part of the valve core is a telescopic ring, which can realize the elastic telescoping of the head of the valve core.

[0011] Further, a sealing ring is provided at the connection between the bottom of the valve core and the valve seat.

[0012] The beneficial effects of the present invention are as follows: The valve cap is externally threadedly connected to the end of the gland. The end of the piston rod passes through the through hole of the gland and is threadedly connected with an adjusting nut and a fixing nut. A sealing bracket assembly and a plug are provided in the cavity. Through holes are provided in the centers of the sealing bracket assembly and the plug. The piston rod passes through the through holes of the sealing bracket assembly and the plug and is threadedly connected with the valve core. A step is provided in the middle of the piston rod, and the step is arranged between the sealing bracket assembly and the plug. A spring is provided between the step and the plug. The sealing bracket assembly can drive the piston rod to move radially under the push of gas; it is realized that only by unscrewing the valve cap and adjusting the adjusting nut and the fixing nut, the telescopic amount of the piston rod can be controlled. The sealing bracket assembly provided with a sealing component can drive the piston rod and the valve core to realize the opening and closing of the speed regulating valve under the push of gas through the air pipe joint, which has the beneficial effects of being convenient to adjust the piston distance and being durable. Description of the Drawings

[0013] For ease of explanation, the present invention is described in detail by the following preferred embodiments and accompanying drawings.

[0014] Figure 1 is a cross-sectional view of an adjustable speed regulating valve according to the present invention; Figure 2 is a three-dimensional schematic diagram of an adjustable speed regulating valve according to the present invention; Figure 3 is a schematic diagram of a sealing bracket assembly of an adjustable speed regulating valve according to the present invention; Figure 4 is a schematic diagram of a plug of an adjustable speed regulating valve according to the present invention; Figure 5 is a schematic diagram of the cylinder action in the fully closed state of an adjustable speed regulating valve according to the present invention; Figure 6It is a schematic diagram of the adjustable state limit cylinder action of an adjustable speed control valve described in the present invention. In the figure: 1-valve seat, 2-valve cover, 3-valve cap, 4-piston rod, 5-valve core, 6-fixed nut, 7-adjusting nut, 8-sealing support assembly, 9-plug-in, 10-air pipe joint, 11-fluid inlet, 12-fluid outlet, 13-step, 14-spring, 15-sealing assembly, 20-sealing ring, 21-recess, 22-limit groove, 23-external thread, 24-expansion ring, 25-fixed screw, 26-air hole. Embodiment

[0015] The following further describes an adjustable speed control valve described in the present invention with reference to the accompanying drawings: As Figure 1-6 shown, the adjustable speed control valve includes a valve seat 1, a gland 2, a valve cap 3, an air pipe joint 10, and a valve core 5. The air pipe joint 10 is connected to a cylinder. The valve seat 1 and the gland 2 are fixed by a fixed screw 22. The valve seat 11 is provided with a fluid inlet 11 and a fluid outlet 12 for docking with a liquid filling device. A radially movable piston rod 4 is provided in the cavity formed by the valve seat 1 and the gland 2. An air hole 26 is provided in the upper part of the gland 2, and an internal thread is provided on the inner wall of the air hole 26. The air pipe joint 10 is threadedly connected to the through hole. A recess is provided at the center of the end of the gland 2, and an external thread is provided on the outside of the end of the gland 2. The valve cap 3 is threadedly connected to the outside of the end of the gland 2. A through hole with a diameter of the piston rod 4 is provided at the end of the gland 2. The end of the piston rod 4 passes through the through hole of the gland 2 and is threadedly connected with an adjusting nut 7 and a fixed nut 6. The diameter of the through hole is smaller than the diameter of the adjusting nut 7. The adjusting nut 7 is arranged before the fixed nut 6. After the adjusting nut 7 is screwed to the appropriate distance, the fixed nut 6 is tightened to fix it. The moving distance is the distance from the adjusting nut 7 to the gland 2.

[0016] A sealing support assembly 8 and a plug-in are provided in the cavity. The sealing support assembly 8 and the plug-in 9 are provided with through holes at the center. The piston rod 4 passes through the through holes of the sealing support assembly 8 and the plug-in 9 and is threadedly connected to the valve core 5. A step is provided in the middle of the piston rod 4. The step is arranged between the sealing support assembly 8 and the plug-in 9. A spring 14 is provided between the step and the plug-in 9. The sealing support assembly 8 can drive the piston rod 4 to move radially under the push of the cylinder gas. A limit groove 22 is provided outside the through hole of the plug-in 9. One end of the spring 14 is sleeved in the limit groove 22.

[0017] A groove is provided in the through hole of the gland 2 behind the air hole 26. A sealing assembly 15 is arranged in the groove to prevent gas from overflowing from the end.

[0018] A sealing assembly 15 is arranged on the outside of the sealing support assembly 8. A sealing ring 20 is provided at the connection between the inside of the sealing support assembly 8 and the piston rod 4 to prevent the pushing gas from overflowing. The sealing assembly 15 adopts a Gleitring.

[0019] A sealing ring 20 is provided at the connection between the bottom of the valve core 5 and the valve seat 1 to play a role in sealing the liquid. The middle part of the valve core 5 is a telescopic ring 24. The plug-in 9 and the valve core 5 are engaged in the engaging structure formed by the splicing of the valve seat 1 and the gland 2 and fixed by the fixing screw 22. The size of the engaging structure is equal to the sum of the plug-in 9 and the bottom of the valve core 5.

[0020] In the initial state, when the spring 14 is in the extended state, the valve core 5 is in the fully open state. When the cylinder operates, the sealing bracket assembly 8 drives the piston rod 4 and the valve core 5, and the spring 14 contracts. At this time, it is in the fully closed state; unscrew the valve cap 3, and adjust the length of the piston rod 4 entering the cavity by adjusting the nut 7. The state that the cylinder can push the piston rod 4 to reach is the adjustable limit state.

[0021] When the working gas stops passing, the spring 14 extends to push the piston rod 4 to the initial state.

[0022] When filling different carbonated beverages and beers, adjust the adjusting nut 7 according to the filling speed required for different liquids without foaming. While ensuring the filling speed, the present invention can quickly adjust the filling speed for different filling liquids without disassembling and reassembling again, saving time and effort and having a longer service life.

[0023] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An adjustable speed control valve, comprising a valve seat, a gland, a valve cap, an air pipe joint, and a valve core. The valve seat and the gland are fixed by fixing screws. The valve seat is provided with a fluid inlet and a fluid outlet. A piston rod that can move radially is arranged in the cavity formed by the valve seat and the gland. The upper part of the gland is provided with an air hole, and the inner wall of the air hole is provided with internal threads. The air pipe joint is threadedly connected to the through hole. It is characterized in that: A concave platform is provided at the center of the end of the gland. An external thread is provided on the outside of the end of the gland. The valve cap is threadedly connected to the external thread of the end of the gland. A through hole with the diameter of the piston rod is provided at the end of the gland. The end of the piston rod passes through the through hole of the gland and is threadedly connected with an adjusting nut and a fixing nut. A sealing bracket assembly and a plug are provided in the cavity. Through holes are provided at the centers of the sealing bracket assembly and the plug. The piston rod passes through the through holes of the sealing bracket assembly and the plug and is threadedly connected with the valve core. A step is provided in the middle of the piston rod. The step is arranged between the sealing bracket assembly and the plug. A spring is provided between the step and the plug. The sealing bracket assembly can drive the piston rod to move radially under the push of gas.

2. An adjustable speed control valve according to claim 1, characterized in that: A groove is provided behind the air hole in the through hole of the gland, and a sealing component is arranged in the groove.

3. The adjustable speed control valve according to claim 2, wherein: A sealing component is arranged on the outside of the sealing bracket assembly, and a sealing ring is provided at the connection between the inside of the sealing bracket assembly and the piston rod.

4. An adjustable speed control valve according to claim 3, characterized in that: The plug and the valve core are engaged in a clamping structure formed by the combination of the valve seat and the gland.

5. An adjustable speed control valve according to claim 4, characterized in that: A limiting groove is provided outside the through hole of the plug, and one end of the spring is sleeved in the limiting groove.

6. An adjustable speed control valve according to claim 5, characterized in that: The diameters of the adjusting nut and the fixing nut are smaller than the concave platform.

7. An adjustable speed control valve according to claim 6, characterized in that: The middle part of the valve core is a telescopic ring.

8. An adjustable speed control valve according to claim 7, characterized in that: A sealing ring is provided at the connection between the bottom of the valve core and the valve seat.

Images