Adjustable speed regulating valve

Abstract

The utility model 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 joint, 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 utility model relates to the field of filling equipment, in particular to an adjustable speed regulating 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, causing back-bubbling in the bottle after filling. In order to prevent back-bubbling during the filling process, the existing technology uses a speed regulating valve to reduce the filling speed. However, the existing speed regulating valve needs to adjust the piston distance in the valve for different types of carbonated beverages and beer. Adjusting the piston distance in the valve requires re-disassembling the speed regulating valve, which is time-consuming and labor-intensive, and may also cause wear of the sealing ring and affect the sealing performance. In addition, some adjustable regulating valves use a gas-driven diaphragm to push the piston rod, which is not durable and may leak after aging. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an adjustable flow limiting valve which is convenient for adjusting the piston distance and durable.

[0004] In order to achieve the above-mentioned object, the utility model provides an adjustable speed regulating valve, comprising a valve seat, a gland, a valve bonnet, 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 radially movable piston rod is provided in the cavity formed by the valve seat and the gland. An air hole is provided on the upper part of the gland, and an internal thread is provided on the inner wall of the air hole. The air pipe joint is threadedly connected to the through hole. The utility model 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 bonnet is threadedly connected to the outside of the end of the gland, a through hole of 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-in are provided in the cavity, a through hole is provided at the center of the sealing bracket assembly and the plug-in, the piston rod passes through the through hole of the sealing bracket assembly and the plug-in and is threadedly connected to the valve core, a step is provided in the middle of the piston rod, the step is provided between the sealing bracket assembly and the plug-in, a spring is provided between the step and the plug-in, and the sealing bracket assembly can drive the piston rod to move radially under the push of gas.

[0005] Furthermore, a groove is provided behind the air hole in the gland through hole, and a sealing component is provided in the groove.

[0006] Furthermore, a sealing assembly is provided 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.

[0007] Furthermore, the plug-in unit and the valve core are engaged in an engaging structure formed by the valve seat and the gland.

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

[0009] Furthermore, the diameters of the adjusting nut and the fixing nut are smaller than those of the concave platform, and the adjusting nut and the fixing nut can enter the concave platform.

[0010] Furthermore, the middle portion of the valve core is a telescopic ring, which can realize elastic telescopic movement of the valve core head.

[0011] Furthermore, 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 connected to the external threaded connection of the gland end, the piston rod end passes through the gland through hole and is threadedly connected with an adjusting nut and a fixing nut, a sealing bracket assembly and a plug-in are provided in the cavity, a through hole is provided in the center of the sealing bracket assembly and the plug-in, the piston rod passes through the through hole of the sealing bracket assembly and the plug-in and is threadedly connected to the valve core, a step is provided in the middle of the piston rod, the step is provided between the sealing bracket assembly and the plug-in, a spring is provided between the step and the plug-in, the sealing bracket assembly can drive the piston rod to move radially under the push of gas; it is only necessary to unscrew the valve cap and adjust the adjusting nut and the fixing nut to control the extension and contraction of the piston rod, and the sealing bracket assembly provided with a sealing assembly is pushed by the gas from the trachea joint to drive the piston rod and the valve core to realize the opening and closing of the speed regulating valve, which has the beneficial effects of convenient adjustment of the piston distance and durability. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 1 This is a cross-sectional view of an adjustable speed regulating valve according to the present utility model;

[0015] Figure 2 It is a three-dimensional schematic diagram of an adjustable speed regulating valve described in the utility model;

[0016] Figure 3 This is a schematic diagram of a sealing bracket assembly of an adjustable speed regulating valve described in the utility model;

[0017] Figure 4 This is a schematic diagram of a plug-in unit of an adjustable speed regulating valve according to the present invention;

[0018] Figure 5 This is a schematic diagram of the cylinder action in the fully closed state of an adjustable speed regulating valve described in the utility model;

[0019] Figure 6This is a schematic diagram of the adjustable state limit cylinder action of an adjustable speed control valve described in the utility model, in which: 1-valve seat, 2-valve cover, 3-valve bonnet, 4-piston rod, 5-valve core, 6-fixing nut, 7-adjusting nut, 8-sealing bracket assembly, 9-plug-in, 10-trachea joint, 11-fluid inlet, 12-fluid outlet, 13-step, 14-spring, 15-sealing assembly, 20-sealing ring, 21-recess, 22-limiting groove, 23-external thread, 24 telescopic ring, 25-fixing screw, 26-air hole. Implementation Method

[0020] The adjustable speed regulating valve of the utility model is further described below with reference to the accompanying drawings:

[0021] like Figure 1-6 As shown, the adjustable speed regulating 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 the cylinder. The valve seat 1 and the gland 2 are fixed by fixing screws 22. The valve seat 11 is provided with a fluid inlet 11 and a fluid outlet 12 for connecting to 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 on the upper part of the gland 2. The inner wall of the air hole 26 is provided with an internal thread. The air pipe joint 10 is threadedly connected to the through hole. The center of the end of the gland 2 is provided with a concave platform, the outside of the end of the gland 2 is provided with an external thread, the valve cap 3 is threadedly connected to the external end of the end of the gland 2, the end of the gland 2 is provided with a through hole of the diameter of the piston rod 4, 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 fixing nut 6. The diameter of the through hole is smaller than the diameter of the adjusting nut 7. The adjusting nut 7 is arranged in front of the fixing nut 6. After the adjusting nut 7 is tightened to a certain distance, the fixing nut 6 is tightened to fix it. The movable distance is the distance from the adjusting nut 7 to the gland 2.

[0022] A sealing bracket assembly 8 and a plug-in are provided in the cavity, and a through hole is provided in the center of the sealing bracket assembly 8 and the plug-in 9. The piston rod 4 passes through the through hole of the sealing bracket 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, and the step is arranged between the sealing bracket assembly 8 and the plug-in 9. A spring 14 is provided between the step and the plug-in 9. The sealing bracket assembly 8 can drive the piston rod 4 to move radially under the push of the cylinder gas. A limiting groove 22 is provided outside the through hole of the plug-in 9, and one end of the spring 14 is sleeved in the limiting groove 22.

[0023] A groove is provided behind the air hole 26 in the through hole of the gland 2, and a sealing component 15 is provided in the groove to prevent gas from overflowing from the end.

[0024] A sealing assembly 15 is provided on the outside of the sealing bracket assembly 8, and a sealing ring 20 is provided on the inside of the sealing bracket assembly 8 at the connection with the piston rod 4 to seal and prevent the propulsion gas from escaping. The sealing assembly 15 is a Gly ring.

[0025] A sealing ring 20 is provided at the connection between the bottom of the valve core 5 and the valve seat 1 to seal 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 valve seat 1 and the pressure cover 2, and are fixed by fixing screws 22. The size of the engaging structure is equal to the size of the plug-in 9 plus the bottom of the valve core 5.

[0026] In the initial state, when the spring 14 is extended, the valve core 5 is in the fully open state. When the cylinder is actuated, 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 reach by pushing the piston rod 4 is the adjustable limit state.

[0027] When the flow of working gas stops, the spring 14 stretches and pushes the piston rod 4 to the initial state.

[0028] When filling different carbonated beverages and beer, the adjusting nut 7 is adjusted according to the filling speed required to prevent backbubbling of different liquids. The utility model can quickly adjust the filling speed for different filling liquids while ensuring the filling speed, without the need for re-disassembly, saving time and effort, and extending the service life.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustable speed regulating valve, comprising a valve seat, a gland, a valve cap, a trachea 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 radially movable piston rod is provided in the cavity formed by the valve seat and the gland. An air hole is provided on the upper portion of the gland, and an internal thread is provided on the inner wall of the air hole. The air pipe joint is threadedly connected to the through hole. Its characteristics are: The center of the gland end is provided with a concave platform, the outside of the gland end is provided with an external thread, the valve cap is connected to the external thread of the gland end, the gland end is provided with a through hole of the piston rod diameter, the piston rod end passes through the gland through hole and is threadedly connected with an adjusting nut and a fixing nut. A sealing bracket assembly and a plug-in are provided in the cavity, a through hole is provided in the center of the sealing bracket assembly and the plug-in, the piston rod passes through the through hole of the sealing bracket assembly and the plug-in and is threadedly connected to 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-in, a spring is provided between the step and the plug-in, and the sealing bracket assembly can drive the piston rod to move radially under the push of gas.

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

3. The adjustable speed regulating valve according to claim 2, characterized in that: A sealing assembly is provided 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. The adjustable speed regulating valve according to claim 3, characterized in that: The plug-in unit and the valve core are clamped in a clamping structure formed by the valve seat and the gland.

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

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

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

8. The adjustable speed regulating 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.

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