CN214838422U

CN214838422U - Piston type pressure regulator

Info

Publication number: CN214838422U
Application number: CN202121033555.8U
Authority: CN
Inventors: 章建辉
Original assignee: Chengdu Huatai Gas Equipment Co ltd
Current assignee: Chengdu Huatai Digital Intelligence Technology Co.,Ltd.
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2021-11-23
Anticipated expiration: 2031-05-14

Abstract

The utility model discloses a piston voltage regulator, including valve body and adjusting part, the both ends of valve body are fixed with flange, and the outside top of valve body is fixed with the portal frame, the inside of valve body is provided with the current-limiting plate, and the surface of current-limiting plate has seted up the water conservancy diversion mouth, and the top of current-limiting plate is fixed with the limiting plate simultaneously, the motor is fixed in the outside of portal frame, and the output of motor is connected with the lead screw, the lead screw rotates the inboard of connecting at the portal frame, and the both ends threaded connection of lead screw has the movable block, the below of movable block is rotated and is connected with the connecting rod, and the connecting rod is connected with the connecting block. This piston voltage regulator is provided with limiting plate and ball, can lead it at the valve rod slip in-process through the through-hole on limiting plate surface to improve the stability of valve rod in the slip in-process, avoid appearing the unstable phenomenon of shake, the ball on cooperation through-hole surface can reduce the valve rod and slide produced wearing and tearing in the through-hole, improves its life.

Description

Piston type pressure regulator

Technical Field

The utility model relates to a voltage regulator technical field especially relates to a piston voltage regulator.

Background

The piston type pressure regulator is also called as a piston type pressure regulating valve, which adopts the opening degree of an opening and closing part (piston) in a control valve body to regulate the flow of a medium, reduces the pressure of the medium, simultaneously regulates the opening degree of the opening and closing part by the action of the pressure behind the valve, keeps the pressure behind the valve in a certain range, keeps the pressure at an outlet in a set range under the condition that the pressure at the inlet is continuously changed, protects the subsequent life and production appliances, and finds that the piston type pressure regulating valve in the prior art is typical as CN206617589U through mass retrieval; the device body outside is provided with the steel structure shell, the steel structure shell outside parcel has chromium coating, the inside water course that is provided with of device body, the water course both ends are provided with the section of intaking and go out the water course, the inside delivery port that is provided with of water course, the delivery port agrees with the valve plate to be connected, the welding of valve plate upside has the valve rod, valve rod one end is passed the baffle and is welded each other with the backup pad, the welding of backup pad upside has electric telescopic handle, electric telescopic handle input and PLC automatic control input electric connection, device body upside is provided with the valve gap, the valve gap is fixed through the screw. The device convenient to use in the above-mentioned scheme uses through PLC automatic control and flow valve cooperation and can pass through the outflow of electric telescopic handle automatic control water yield.

To sum up, current piston air-vent valve simple structure adjusts the pipeline internal pressure through this kind of mode that sets up electronic telescopic link drive valve rod and the stifled motion of valve in valve body inside, nevertheless because inside the valve body is arranged in to electronic telescopic link, leads to its maintenance to dismantle comparatively difficultly, and is not convenient for observe to because valve internal pressure is great when using, lead to the valve rod to appear shaking unstable phenomenon easily under hydraulic effect, thereby influence the result of use.

SUMMERY OF THE UTILITY MODEL

For solving the problem that exists among the prior art, the utility model provides a piston voltage regulator, this voltage regulator leads the valve rod through setting up the limiting plate for the valve rod can be more stable slide, makes the motion that can control the valve rod in the outside of valve body through the portal frame in the valve body outside simultaneously, thereby makes things convenient for the staff to observe the in service behavior of valve rod.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the two ends of the valve body are fixedly provided with connecting flanges, the top of the outer side of the valve body is fixedly provided with a portal frame, a flow limiting plate is arranged inside the valve body, the surface of the flow limiting plate is provided with a flow guide port, a limiting plate is fixed above the flow limiting plate, the surface of the limiting plate is provided with a through hole, the inner side of the through hole is connected with a valve rod in a sliding mode, the surface of the through hole is provided with a ball, the valve rod penetrates through the top of the valve body, and a sealing plug is fixed at the bottom of the valve rod penetrating through the flow guide port;

the adjusting component for driving the valve rod to slide is arranged on the inner side of the portal frame.

In the structure, when adjusting the internal pressure of the valve body, the adjusting component arranged on the inner side of the portal frame can adjust the extension and retraction of the valve rod, so that the opening degree of the bottom sealing plug of the valve rod can be adjusted, meanwhile, the adjusting component can be convenient for workers to observe the service condition of the valve rod, the adjusting component is convenient to maintain, the valve rod can be guided by the aid of the matching limiting plate when the valve rod slides, the stability of the valve rod is improved, and the phenomenon of unstable shaking is avoided.

The utility model discloses a voltage regulator leads the valve rod through setting up the limiting plate for the valve rod can be more stable slide, makes the motion that can be at the outside control valve rod of valve body through the portal frame in the valve body outside simultaneously, thereby makes things convenient for the staff to observe the in service behavior of valve rod.

Preferably, the adjusting part includes motor, lead screw, movable block, connecting rod and connecting block, the motor is fixed in the outside of portal frame, and the output of motor is connected with the lead screw, the lead screw rotates the inboard of connecting at the portal frame, and the both ends threaded connection of lead screw has the movable block, and movable block sliding connection is at the inboard top both ends of portal frame simultaneously, the below of movable block is rotated and is connected with the connecting rod, and the connecting rod is connected with the connecting block, and the top at the valve rod is fixed to the connecting block simultaneously.

The motor through the portal frame outside drives the lead screw and rotates, make the lead screw drive the movable block at its both ends and slide in opposite directions or dorsad motion at the inboard top of portal frame, so that the top that drives the connecting rod through the movable block is in opposite directions or dorsad motion, thereby the bottom that drives the connecting rod rotates on the connecting block surface, make and to drive connecting block and valve rod and rise or descend, so that adjust the sealed stifled aperture in valve rod bottom, moreover, the steam generator is simple in structure, the inconvenience that manual operation brought has been avoided, make things convenient for the staff to observe the in service behavior of valve rod.

Preferably, the through hole is perpendicular to the flow guide opening.

So as to lead the valve rod in the process of driving the sealing plug to adjust the opening degree by the valve rod, thereby avoiding the unstable shaking phenomenon of the valve rod in the sliding process and improving the stabilizing effect.

Preferably, the balls are provided with a plurality of groups, and the groups are arranged at equal intervals.

So as to reduce the abrasion generated when the valve rod slides in the through hole and improve the service life of the valve rod,

preferably, an elastic sealing ring is arranged at the top of the inner side of the valve body.

The valve rod can keep tightness in the sliding process of the top of the valve body, and the phenomenon of leakage is avoided.

Preferably, a telescopic mechanism is formed among the movable block, the connecting rod and the connecting block.

Can drive two sets of movable blocks through the lead screw and slide in opposite directions or the motion dorsad, the connecting rod of cooperation movable block bottom makes can drive connecting block and valve rod and stretch out and draw back at the valve body top to the sealed stifled aperture in adjustment valve rod bottom.

Has the advantages that:

1. the valve rod can be guided in the sliding process of the valve rod through the through hole in the surface of the limiting plate, so that the stability of the valve rod in the sliding process is improved, the phenomenon of unstable shaking is avoided, the abrasion of the valve rod caused by sliding in the through hole can be reduced by matching with the ball on the surface of the through hole, and the service life of the valve rod is prolonged;

2. be provided with portal frame and connecting rod, the motor through the portal frame outside drives the lead screw and rotates, make the lead screw drive two sets of movable blocks or motion dorsad, so that the connecting rod through the movable block bottom drives connecting block and valve rod and upwards or the downward motion adjusts sealed stifled aperture, moreover, the steam generator is simple in structure, easily the staff observes the valve rod, the pipeline internal pressure has been adjusted through this kind of mode that sets up electric telescopic rod drive valve rod and the stifled motion of valve in that the valve body is inside to solved current piston air-vent valve, nevertheless because electric telescopic rod arranges the valve body inside in, lead to its maintenance to dismantle comparatively difficultly, and be not convenient for observe the problem.

Drawings

Fig. 1 is a schematic front view of an embodiment of the present invention;

fig. 2 is a schematic view of a front sectional structure of a valve body according to an embodiment of the present invention;

fig. 3 is a schematic top view of a limiting plate according to an embodiment of the present invention;

fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.

Reference numerals:

1. the valve comprises a valve body, 2, a connecting flange, 3, a portal frame, 4, a flow limiting plate, 5, a flow guiding opening, 6, a limiting plate, 7, a through hole, 8, a valve rod, 9, a ball, 10, a sealing plug, 11, an adjusting assembly, 1101, a motor, 1102, a screw rod, 1103, a movable block, 1104, a connecting rod, 1105 and a connecting block.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

example (b):

as shown in fig. 1 and 2, a piston type pressure regulator includes a valve body 1 and an adjusting assembly 11, wherein connecting flanges 2 are fixed at two ends of the valve body 1, a portal frame 3 is fixed at the top of the outer side of the valve body 1, a restrictor plate 4 is arranged inside the valve body 1, a flow guide opening 5 is formed in the surface of the restrictor plate 4, a restrictor plate 6 is fixed above the restrictor plate 4, a through hole 7 is formed in the surface of the restrictor plate 6, a valve rod 8 is slidably connected to the inner side of the through hole 7, a ball 9 is arranged on the surface of the through hole 7, the valve rod 8 penetrates through the top of the valve body 1, and a sealing plug 10 is fixed at the bottom of the valve rod 8 penetrating through the flow guide opening 5;

the adjusting component 11 for driving the valve rod 8 to slide is arranged on the inner side of the portal frame 3.

In the structure, when adjusting 1 internal pressure of valve body, can adjust the flexible of valve rod 8 through 3 inboard adjusting part 11 of portal frame for can adjust the sealed aperture of stifled 10 in valve rod 8 bottom, still can make things convenient for the staff to observe the in service behavior of valve rod 8 simultaneously, be convenient for maintain, cooperation limiting plate 6 makes and leads to valve rod 8 when valve rod 8 slides, with the stability that improves valve rod 8, avoid appearing the unstable phenomenon of shake.

In one embodiment, as shown in fig. 1 and 4, the adjusting assembly 11 includes a motor 1101, a lead screw 1102, movable blocks 1103, a connecting rod 1104 and a connecting block 1105, the motor 1101 is fixed outside the gantry 3, an output end of the motor 1101 is connected with the lead screw 1102, the lead screw 1102 is rotatably connected inside the gantry 3, two ends of the lead screw 1102 are in threaded connection with the movable blocks 1103, the movable blocks 1103 are slidably connected to two ends of a top portion inside the gantry 3, the connecting rod 1104 is rotatably connected below the movable blocks 1103, the connecting rod 1104 is connected with the connecting block 1105, the connecting block 1105 is fixed on a top portion of the valve rod 8, a telescopic mechanism is formed among the movable blocks 1103, the connecting rod 1104 and the connecting block 1105, when the piston type pressure regulator is used, the motor 1101 outside the gantry 3 drives the lead screw 1102 to rotate, so that the lead screw 1102 drives the movable blocks 1103 at two ends thereof to move towards or away from each other at the top portion inside the gantry 3, so that drive the top of connecting rod 1104 or move dorsad in opposite directions through movable block 1103 to the bottom that drives connecting rod 1104 rotates on connecting block 1105 surface, makes and to drive connecting block 1105 and valve rod 8 and rise or descend, so that the sealed aperture of stifled 10 in adjustment valve rod 8 bottom, simple structure has avoided the inconvenience that manual operation brought, makes things convenient for the staff to observe the in service behavior of valve rod 8.

In one embodiment, as shown in fig. 2 and 3, the through hole 7 is perpendicular to the flow guide port 5, and the valve rod 8 can be guided by the through hole 7 on the surface of the limiting plate 6 in the sliding process, so that the phenomenon of unstable shaking in the sliding process is avoided, and the stabilizing effect is improved.

The balls 9 are provided in groups and are arranged at equal intervals so as to reduce the wear of the valve rod 8 when sliding in the through hole 7 and improve the service life thereof.

In one embodiment, the top of the inner side of the valve body 1 is provided with an elastic sealing ring, so that the valve rod 8 can keep tightness in the sliding process of the top of the valve body 1, and the leakage phenomenon is avoided.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The piston type pressure regulator is characterized by comprising a valve body and an adjusting assembly, wherein connecting flanges are fixed at two ends of the valve body, a portal frame is fixed at the top of the outer side of the valve body, a flow limiting plate is arranged inside the valve body, a flow guide port is formed in the surface of the flow limiting plate, a limiting plate is fixed above the flow limiting plate, a through hole is formed in the surface of the limiting plate, a valve rod is connected to the inner side of the through hole in a sliding mode, a ball is arranged on the surface of the through hole, the valve rod penetrates through the top of the valve body, and a sealing plug is fixed at the bottom of the valve rod penetrating through the flow guide port;

2. The piston-type pressure regulator according to claim 1, wherein the adjusting assembly comprises a motor, a screw rod, a movable block, a connecting rod and a connecting block, the motor is fixed at the outer side of the portal frame, the output end of the motor is connected with the screw rod, the screw rod is rotatably connected at the inner side of the portal frame, the movable block is in threaded connection with the two ends of the screw rod, the movable block is slidably connected at the two ends of the top of the inner side of the portal frame, the connecting rod is rotatably connected below the movable block and is connected with the connecting block, and the connecting block is fixed at the top of the valve rod.

3. The piston-type pressure regulator of claim 1, wherein said through-hole is disposed perpendicular to the flow guide port.

4. A piston pressure regulator according to claim 1, wherein said balls are arranged in a plurality of groups and are equally spaced.

5. The piston pressure regulator of claim 1, wherein an elastomeric sealing ring is disposed on an inside top portion of the valve body.

6. The piston-type pressure regulator of claim 2, wherein a telescoping mechanism is formed between the movable block, the connecting rod and the connecting block.