Piston flow and pressure regulating valve

Abstract

The utility model provides a piston type flow and pressure regulating valve, including pressure regulating valve outer casing, set up in the water outlet of pressure regulating valve outer casing other end, set up in pressure regulating valve outer casing and with water outlet intercommunication's water outlet channel, set up in the fixed base of water pipeline, can dismantle set up in the force pipe and flow -through pipe of fixed base in water outlet channel, still include a plurality of buffer plates of annular equidistance set up on the force pipe, a plurality of vertical perforation of vertical open in the force pipe and be located buffer board that end, one end fixed setting be located in a plurality of sliding rods of vertical perforation in the buffer board, and the other end slide setting in the vertical perforation, fixed setting be located between each buffer plate with the force pipe, and the buffer spring of sleeve setting on each sliding rod, set up between each buffer plate with the force pipe's auxiliary buffer board.

Description

Technical Field

[0001] This utility model relates to the field of pressure regulating valve technology, specifically to a piston-type flow regulating and pressure regulating valve. Background Technology

[0002] Piston-type flow and pressure regulating valves are widely used in pressure pipeline systems. They are commonly used for functions such as flow regulation, pressure regulation, and water level regulation in water tanks. They have advantages such as high regulation accuracy and good reliability, and are therefore widely used.

[0003] Chinese Patent No. CN202320406392.6 discloses a piston-type flow regulating and pressure regulating valve, including a valve housing and an anti-impact component. An inner shell is installed inside the valve housing, and a drive motor is mounted on the outer side of the inner shell. The drive motor is fixed to a drive seat via an output shaft, and the end of the drive seat is movably connected to a crank mechanism. The end of the crank mechanism away from the drive seat is movably connected to a piston. A sliding channel is installed on the left side of the inner shell, and the piston is slidably disposed inside the sliding channel. A throttling component is installed on the left side of the piston. In this piston-type flow regulating and pressure regulating valve, the anti-impact component is detachable inside the outlet pipe, replacing the impact that the long outlet pipe would otherwise bear. During maintenance of the pressure regulating valve, the anti-impact component can be cleaned or replaced, preventing water hammer caused by the water flowing at an angle, which can lead to water hammer, wear and tear on the pipe wall, and eventually render the pipe unusable.

[0004] Although the aforementioned patent can prevent water flow from causing water hammer on the pipe wall in an inclined manner, the pressure pipe cannot buffer the impacting water flow when it hits the pressure pipe. As a result, the pressure pipe is easily damaged by long-term water flow impact, which cannot improve the service life of the pressure pipe and requires frequent replacement and maintenance. Utility Model Content

[0005] The purpose of this utility model is to provide a piston-type flow regulating and pressure regulating valve in response to the defects and deficiencies of the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a piston-type flow regulating and pressure regulating valve, comprising a pressure regulating valve housing, an outlet disposed at the other end of the pressure regulating valve housing, an outlet channel disposed on the pressure regulating valve housing and connected to the outlet, a fixed seat disposed within the outlet channel, a force-receiving pipe and a flow pipe detachably disposed on the fixed seat within the outlet channel, and further comprising a plurality of buffer plates equidistantly disposed annularly on the force-receiving pipe, a plurality of vertical perforations vertically opened on the force-receiving pipe and located at the buffer plate end, a plurality of sliding rods one end fixedly disposed on the buffer plate and the other end slidably disposed within the vertical perforations, a buffer spring fixedly disposed between each of the buffer plates and the force-receiving pipe and sleeved on each sliding rod, and an auxiliary buffer plate disposed between each of the buffer plates and the force-receiving pipe.

[0007] A further improvement is that the auxiliary buffer plate includes a connecting plate body disposed on the force-bearing tube and located at the end of each buffer plate, and a plurality of buffer protrusions disposed on the connecting plate body, wherein the buffer protrusions are arc-shaped protrusions and the buffer protrusions are elastic protrusions.

[0008] A further improvement is that the buffer protrusion includes a base fixedly mounted on the connecting plate, a lifting punch block that can be raised and lowered above the base, a lifting opening at the lower end of the lifting punch block, a fixing rod located at the upper end of the base and in clearance fit with the lifting opening, and an auxiliary spring located between the upper end of the fixing rod and the lifting punch block and within the lifting opening. The base is an elastic protrusion, and the lifting punch block and fixing rod are a plastic block and a plastic rod, respectively.

[0009] A further improvement is made as follows: the lifting punch block has side slots on the left and right sides of the lifting opening; the upper end of the base has side columns on the left and right sides of the fixing rod; the side columns are fitted with the side slots with a clearance fit; the upper end of the side column has a semi-circular protrusion in the side slot; the semi-circular protrusion is an elastic protrusion; the lifting punch block has clearance grooves connected to the two side slots respectively; the clearance grooves are fitted with the semi-circular protrusions with a clearance fit; and the diameter of the clearance grooves is larger than the diameter of the side slots.

[0010] A further improvement is that the semi-circular protrusion is a rubber block or a silicone block.

[0011] After adopting the above technical solution, the beneficial effects of this utility model are as follows: When the water flow impacts the force-bearing pipe, the impacting water flow impacts each buffer plate. At this time, the buffer plate moves towards the force-bearing pipe end, and the buffer spring is compressed to produce elastic deformation, thereby buffering the impact of the water flow on the buffer plate. The setting of the sliding rod and vertical perforation allows the buffer plate to maintain its movement parallel to the force-bearing pipe during the movement process, preventing the buffer plate from tilting when the water flow impacts the side of the buffer plate. It can guide the movement direction of the buffer plate. When the buffer plate is impacted by the water flow and approaches the force-bearing pipe end, it is contacted by the auxiliary buffer plate to perform secondary buffering and limit the movement distance of the buffer plate towards the force-bearing pipe, preventing the buffer spring from being over-compressed and vibrating due to the impact of the water flow. This can reduce the damage to the force-bearing pipe caused by long-term water flow impact, improve the service life of the force-bearing pipe, and reduce the frequency of replacement and maintenance of the force-bearing pipe.

[0012] Further effect: By setting elastic arc-shaped protrusions, the buffer plate can be subjected to secondary buffering when it moves to the predetermined position towards the force-bearing tube, providing an auxiliary buffering effect.

[0013] Further effects: When the buffer plate moves to the predetermined position towards the force-bearing tube, the buffer plate presses down the lifting punch towards the base. At this time, the descent of the lifting punch is buffered by the auxiliary spring. When the lifting punch impacts the base, the elasticity of the base provides secondary buffering, thereby further improving the buffering effect of the buffer plate on the impact of water flow.

[0014] Further effects: When the lifting block is not pressed by the buffer plate, the auxiliary spring pushes the lifting block upward away from the base. At this time, the intersection of the clearance groove and the side slot restricts the movement of the semi-circular protrusion, thereby further preventing the lifting block from detaching from the base. When the lifting block is pressed by the buffer plate, the lifting block moves closer to the base. When the lower end of the lifting block presses against the upper end of the base, the semi-circular protrusion is squeezed against the upper end of the clearance groove, causing the semi-circular protrusion to deform and thus provide auxiliary buffering. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only 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; Figure 2 This is a front sectional view of the force-bearing pipe and the flow pipe in this utility model; Figure 3 It corresponds Figure 2 Another state diagram; Figure 4 This is a side view of the force-bearing tube and buffer plate in this utility model; Figure 5 This is a structural schematic diagram of the connecting plate and buffer protrusion in this utility model; Figure 6 This is a top view of the connecting plate and buffer protrusion in this utility model; Figure 7 This is a cross-sectional view of the buffer protrusion in this utility model; Figure 8 It corresponds Figure 7 Another state diagram.

[0017] Explanation of reference numerals in the attached drawings: 1. Pressure regulating valve housing; 2. Water outlet; 3. Water outlet channel; 4. Fixing base; 5. Force-bearing pipe; 6. Flow pipe; 7. Buffer plate; 8. Vertical perforation; 9. Sliding rod; 10. Buffer spring; 11. Connecting plate; 12. Buffer protrusion; 12. Base; 121. Lifting punch; 122. Lifting opening; 123. Fixing rod; 124. Auxiliary spring; 125. Side slot; 13. Side column; 14. Semi-circular protrusion; 15. Clearance groove; 16. Detailed Implementation

[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0019] See Figures 1 to 8 As shown, the technical solution adopted in this specific embodiment is: a piston-type flow regulating and pressure regulating valve, including a pressure regulating valve housing, an outlet 2 disposed at the other end of the pressure regulating valve housing, an outlet channel 3 disposed on the pressure regulating valve housing and connected to the outlet 2, a fixed seat 4 disposed in the outlet channel 3, a force-receiving pipe 5 and a flow pipe 6 detachably disposed on the fixed seat 4 and located in the outlet channel 3, and further including a plurality of buffer plates 7 circumferentially and equidistantly disposed on the force-receiving pipe 5, a plurality of vertical perforations 8 vertically opened on the force-receiving pipe 5 and located at the end of the buffer plates 7, a plurality of sliding rods 9 one end fixedly disposed on the buffer plates 7 and the other end slidably disposed in the vertical perforations 8, a buffer spring 10 fixedly disposed between each of the buffer plates 7 and the force-receiving pipe 5 and sleeved on each sliding rod 9, and an auxiliary buffer plate disposed between each of the buffer plates 7 and the force-receiving pipe 5.

[0020] Each buffer plate 7 is equidistantly arranged in a ring on the force-receiving pipe 5, with the central axis of the force-receiving pipe 5 and the flow pipe 6 as the reference. Each buffer plate 7 is parallel to the inclined surface of the force-receiving pipe 5, and the size of each buffer plate 7 corresponds to or is slightly larger than the size of the inclined surface of the force-receiving pipe 5. Vertical perforations 8 are provided at the positions of the buffer plates 7 on the force-receiving pipe 5, with at least four vertical perforations 8 at corresponding positions on each buffer plate 7. In this application, four vertical perforations 8 are provided at one end of each buffer plate 7, and the four vertical perforations 8 are rectangularly and equidistantly arranged between the buffer plate 7 and the force-receiving pipe 5. Alternatively, there can be nine vertical perforations 8, arranged in a 3x3 grid between the buffer plate 7 and the force-receiving pipe 5, with the perforations 8 also arranged in a 3x3 grid. The two ends of the buffer spring 10 are fixedly connected to the buffer plate 7 and the force-receiving pipe 5 by adhesive or welding. The buffer plate 7 is a plastic plate or a rubber plate.

[0021] The auxiliary buffer plate includes a connecting plate 11 disposed on the force-bearing tube 5 and located at the end of each buffer plate 7, and a plurality of buffer protrusions 12 disposed on the connecting plate 11. The buffer protrusions 12 are arc-shaped and elastic. The elastic protrusions are made of TPU, rubber, or silicone. The connecting plate 11 is disposed parallel to the inclined surface of the force-bearing tube 5. The buffer protrusions 12 are equidistantly disposed on the connecting plate 11, closer to the end of the buffer plate 7.

[0022] The buffer protrusion 12 includes a base 121 fixedly mounted on the connecting plate 11, a lifting punch 122 vertically mounted above the base 121, a lifting opening 123 at the lower end of the lifting punch 122, a fixing rod 124 disposed at the upper end of the base 121 and clearance-fitted with the lifting opening 123, and an auxiliary spring 125 disposed between the upper end of the fixing rod 124 and the lifting punch 122 and located within the lifting opening 123. The base 121 is an elastic protrusion, and the lifting punch 122 and fixing rod 124 are a plastic block and a plastic rod, respectively. The lifting punch and fixing rod 124 can be made of materials such as nylon or PVC plastic. The plastically made lifting punch 122 and fixing rod 124 prevent deformation of the lifting opening 123 and fixing rod 124 when the lifting punch 122 is squeezed, and buffer the impact of the lifting punch 122 on the base 121 when it is pressed down. The auxiliary spring 125 is installed between the fixing rod 124 and the lifting punch 122 by means of adhesive or other fixing methods.

[0023] The lifting punch 122 has side slots 13 on both sides of the lifting opening 123. Side pillars 14 are located on both sides of the upper end of the base 121, on both sides of the fixing rod 124. The side pillars 14 are clearance-fitted with the side slots 13. A semi-circular protrusion 15, which is an elastic protrusion, is located at the upper end of the side pillar 14 within the side slot 13. A clearance groove 16 is provided on the lifting punch 122, connecting to both side slots 13. The clearance groove 16 is clearance-fitted with the semi-circular protrusion 15, and its diameter is larger than that of the side slot 13. Both the side slots 13 and the clearance grooves 16 are circular, and the side pillars 14 are circular pillars. The upper end of the clearance groove 16 is arc-shaped.

[0024] The semi-circular protrusion 15 is a rubber block or a silicone block.

[0025] The working principle of this utility model is as follows: When water flows towards the force-bearing pipe 5, the impacting water flows onto each buffer plate 7. At this time, the buffer plate 7 moves towards the end of the force-bearing pipe 5, and the buffer spring 10 is compressed to produce elastic deformation, thereby buffering the impact of the water flow on the buffer plate 7. The sliding rod 9 and the vertical through hole 8 allow the buffer plate 7 to move in a parallel direction to the force-bearing pipe 5 during the movement, preventing the buffer plate 7 from tilting when the water flow impacts the side of the buffer plate 7. This can guide the movement direction of the buffer plate 7. When the buffer plate 7 is impacted by the water flow and approaches the end of the force-bearing pipe 5, the auxiliary buffer plate contacts the buffer plate 7, thereby performing secondary buffering and limiting the movement distance of the buffer plate 7 towards the force-bearing pipe 5. This prevents the buffer spring 10 from being over-compressed and vibrating due to the impact of the water flow, thereby reducing the damage to the force-bearing pipe 5 caused by long-term water flow impact, improving the service life of the force-bearing pipe 5, and reducing the need for frequent replacement and maintenance of the force-bearing pipe 5. When the lifting punch 122 is not pressed by the buffer plate 7, the auxiliary spring 125 pushes the lifting punch 122 upward away from the base 121. At this time, the junction of the clearance groove 16 and the side slot 13 restricts the movement of the semi-circular protrusion 15, thereby further preventing the lifting punch 122 from detaching from the base 121. When the lifting punch 122 is pressed by the buffer plate 7, the lifting punch 122 moves closer to the base 121. When the lower end of the lifting punch 122 presses against the upper end of the base 121, the semi-circular protrusion 15 is squeezed against the upper end of the clearance groove 16, causing the semi-circular protrusion 15 to deform and thus provide auxiliary buffering.

[0026] This utility model aims to protect the product's structure. The model numbers of the individual components are not protected by this utility model and are common knowledge. Any component on the market that can achieve the functions described above can be used as a piston-type flow and pressure regulating valve. Therefore, the model numbers and other parameters of the components are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of the various components.

[0027] 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 provided 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 protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.

Claims

1. A piston-type flow regulating and pressure regulating valve, comprising a pressure regulating valve housing, an outlet disposed at the other end of the pressure regulating valve housing, an outlet channel disposed on the pressure regulating valve housing and connected to the outlet, a fixed seat disposed within the outlet channel, and a force-bearing pipe and a flow pipe detachably disposed on the fixed seat and located within the outlet channel, characterized in that: It also includes a plurality of buffer plates equidistantly arranged in a ring on the force-bearing tube, a plurality of vertical perforations vertically opened on the force-bearing tube and located at the buffer plate end, a plurality of sliding rods with one end fixedly disposed on the buffer plate and the other end slidably disposed in the vertical perforation, a buffer spring fixedly disposed between each of the buffer plates and the force-bearing tube and sleeved on each sliding rod, and an auxiliary buffer plate disposed between each of the buffer plates and the force-bearing tube.

2. A piston flow and pressure regulating valve according to claim 1, characterized in that: The auxiliary buffer plate includes a connecting plate body disposed on the force-bearing tube and located at each buffer plate end, and a plurality of buffer protrusions disposed on the connecting plate body. The buffer protrusions are arc-shaped protrusions and are elastic protrusions.

3. A piston flow and pressure regulating valve according to claim 2, characterized in that: The buffer protrusion includes a base fixedly mounted on the connecting plate, a lifting punch block that can be raised and lowered above the base, a lifting opening at the lower end of the lifting punch block, a fixing rod located at the upper end of the base and in clearance fit with the lifting opening, and an auxiliary spring located between the upper end of the fixing rod and the lifting punch block and within the lifting opening. The base is an elastic protrusion, and the lifting punch block and fixing rod are a plastic block and a plastic rod, respectively.

4. A piston flow and pressure regulating valve according to claim 3, characterized in that: The lifting punch block has side slots on the left and right sides of the lifting opening. The upper end of the base has side columns on the left and right sides of the fixing rod. The side columns are fitted with the side slots with a clearance fit. The upper end of the side column is provided with a semi-circular protrusion in the side slot. The semi-circular protrusion is an elastic protrusion. The lifting punch block has clearance grooves that are connected to the two side slots respectively. The clearance grooves are fitted with the semi-circular protrusions with a clearance fit. The diameter of the clearance grooves is larger than the diameter of the side slots.

5. A piston flow and pressure regulating valve according to claim 4, characterized in that: The semi-circular protrusion is a rubber block or a silicone block.

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