CN211901709U

CN211901709U - Lining safety valve with balanced buffering and corrosion resisting functions

Info

Publication number: CN211901709U
Application number: CN202020036936.0U
Authority: CN
Inventors: 许彬鑫
Original assignee: Zhejiang Jing Heng Copper Industry Ltd By Share Ltd
Current assignee: Zhejiang Jing Heng Copper Industry Ltd By Share Ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-11-10
Anticipated expiration: 2030-01-07

Abstract

The utility model discloses a lining relief valve with balanced buffering corrosion-resistant function, including the valve body, the stifled ring of inner wall fixedly connected with that is close to its bottom on the valve body, be close to the inner wall fixedly connected with guide bar at its middle part on the valve body, the through-hole has been seted up at the middle part of guide bar, the inner wall sliding connection of through-hole has the push-and-pull rod, the bottom fixedly connected with of push-and-pull rod is used for the shutoff stopper of sealed stifled ring, the inner wall fixedly connected with sleeve pipe that is close to its top on the valve body, the side fixedly connected with U type honeycomb duct of valve body. The utility model discloses an above-mentioned isotructure's cooperation has solved current relief valve function comparatively single, and the equilibrium is relatively poor, is difficult for adjusting the automatic size of opening and the required fluid pressure under the closed condition of relief valve simultaneously, reduces the problem of the adaptability of relief valve.

Description

Lining safety valve with balanced buffering and corrosion resisting functions

Technical Field

The utility model relates to the technical field of valves, specifically a lining relief valve with balanced buffering corrosion-resistant function.

Background

The safety valve is a special valve which is in a normally closed state under the action of external force, when the pressure of medium fluid in equipment or a pipeline rises to exceed a specified value, the medium fluid is discharged to the outside of a system to prevent the medium pressure in the pipeline or the equipment from exceeding a specified value, the safety valve belongs to the automatic valve class, is mainly used for boilers, pressure containers and pipelines, controls the pressure to be not more than the specified value, and plays an important role in protecting personal safety and equipment operation. Because the existing safety valve has single function and poor balance, and simultaneously, the size of the fluid pressure required by the safety valve in the automatic opening and closing state is not easy to adjust, and the adaptability of the safety valve is reduced, the improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lining relief valve with balanced buffering corrosion-resistant function, possess through the setting of spring, telescopic link, connecting rod and push-and-pull rod, make can realize the automatic opening and the closure of valve body according to the size of the fluid pressure of the end of getting into of valve body bottom, through coating polytetrafluoroethylene on the surface of slide, shutoff, the inner wall isostructure of stifled ring and valve body, improve the corrosion resistance of valve body and its internal member, through the setting of two springs and telescopic link, make the slide atress balanced, move more steadily smooth and easy under the impact of fluid, and through the setting of screw rod, movable plate and sealing ring, can change the spring compression degree, thus can change and promote the slide and move required fluid pressure, and then can change the advantage of valve body opening required fluid pressure, the problems set forth in the above background art are solved.

In order to achieve the above object, the utility model provides a following technical scheme: a lining safety valve with balanced buffering and corrosion resistance functions comprises a valve body, wherein a plugging ring is fixedly connected to the inner wall of the valve body close to the bottom end of the valve body, a guide rod is fixedly connected to the inner wall of the valve body close to the middle of the valve body, a through hole is formed in the middle of the guide rod, a push-pull rod is slidably connected to the inner wall of the through hole, a plugging plug for sealing the plugging ring is fixedly connected to the bottom end of the push-pull rod, a sleeve is fixedly connected to the inner wall of the valve body close to the top end of the valve body, a U-shaped guide pipe is fixedly connected to the side face of the valve body, the bottom end of the U-shaped guide pipe penetrates into the valve body and is located below the plugging ring, the top end of the U-shaped guide pipe penetrates into the valve body and is located in the sleeve, a strip-, one side that the slide is close to the shutoff and blocks up articulates there is the connecting rod, the bottom of connecting rod is articulated with the top of push-and-pull rod, one side fixedly connected with compression subassembly of U type honeycomb duct is kept away from to the slide, one side fixedly connected with pressure regulating assembly of slide is kept away from to compression subassembly, and the side and the fixedly connected with swing handle of valve body are worn out to the one end that the slide was kept away from to the pressure regulating assembly.

Preferably, the plugging plug is in the shape of a circular truncated cone, a sealing rubber layer is fixedly connected to the surface, close to the bottom end, of the plugging plug, and the surface of the sealing rubber layer is abutted to the inner wall of the plugging ring.

Preferably, the compression subassembly includes the telescopic link, telescopic link fixed connection is on the side of pressure regulating subassembly, the telescopic link is close to the one end of slide and the side fixed connection of slide, the surface cover of telescopic link is equipped with the spring, the both ends of spring respectively with the side fixed connection of slide and pressure regulating subassembly.

Preferably, the number of the telescopic rods is two, and the two telescopic rods are symmetrically distributed on the side face of the sliding plate.

Preferably, the pressure regulating subassembly includes the screw rod, the screw rod passes through bearing seal and rotates to be connected on the side of valve body, the screw rod is close to the surperficial threaded connection of slide one end and has the movable plate, the one end fixed connection of slide is kept away from with the telescopic link to the side of movable plate.

Preferably, the surface of the screw rod is rotatably connected with a sealing ring, and one side of the sealing ring, which is close to the valve body, is fixedly connected to the side surface of the valve body.

Compared with the prior art, the beneficial effects of the utility model are that: when the pressure of the fluid at the inlet end of the bottom of the valve body is too high, the fluid in the valve body can enter the sleeve through the guide pipe under the action of the pressure, the fluid impacts the sliding plate, so that the sliding plate overcomes the elastic force of the spring to move to the side far away from the U-shaped guide pipe, the plugging plug can be pulled to be separated from the plugging ring under the action of the connecting rod and the push-pull rod, a certain amount of fluid can be discharged through the U-shaped guide pipe and the plugging ring, when the pressure is recovered to be normal, the sliding plate can be pushed to move to the side close to the U-shaped guide pipe under the action of the elastic force of the spring to plug the sleeve, the fluid is prevented from flowing out of the U-shaped guide pipe, meanwhile, the sliding plate can drive the plugging plug to move downwards to be in sealing connection with the plugging ring under the action of the connecting rod and the push-pull, The shutoff blocks up, the surface coating polytetrafluoroethylene of inner wall isotructure of stifled ring and valve body, the corrosion resistance of valve body and its internal component has been improved, two springs and telescopic link make slide stress balance, it is more smooth and easy to remove under fluidic impact, it drives the screw rod rotation to rotate the swing arm, because movable plate and screw rod threaded connection, and pass through the slide, connecting rod and push-and-pull rod have carried out the restriction to the rotation of movable plate, make the movable plate can be at the surperficial removal of screw rod, thereby can change the compression degree of spring, can change promptly and promote the required fluid pressure of slide removal, and then can change the valve body and open required fluid pressure, the adaptability of valve body has been improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a front sectional view of the valve body of the present invention in a closed state;

fig. 3 is a front sectional view of the valve body of the present invention in an open state;

fig. 4 is an enlarged view of the structure of the present invention at a.

In the figure: 1-valve body, 2-plugging ring, 3-guide rod, 4-push-pull rod, 5-plugging, 6-sleeve, 7-U-shaped guide pipe, 8-strip-shaped through groove, 9-sliding plate, 10-connecting rod, 11-telescopic rod, 12-spring, 13-screw rod, 14-moving plate, 15-sealing ring and 16-sealing rubber layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides a lining relief valve with balanced buffering corrosion-resistant function, including valve body 1, the inner wall fixedly connected with of valve body 1 near its bottom blocks up ring 2, the inner wall fixedly connected with guide bar 3 near its middle part on valve body 1, the through-hole has been seted up at the middle part of guide bar 3, the inner wall sliding connection of through-hole has push-and-pull rod 4, the bottom fixedly connected with of push-and-pull rod 4 is used for sealed shutoff stopper 5 of blocking up ring 2, cross at slide 9, shutoff stopper 5, the surface coating polytetrafluoroethylene of the inner wall isotructure of stifled ring 2 and valve body 1, the corrosion resistance of valve body 1 and its internal component has been improved.

Further, the shape of the plugging plug 5 is a circular truncated cone, a sealing rubber layer 16 is fixedly connected to the surface, close to the bottom end, of the plugging plug 5, the surface of the sealing rubber layer 16 is abutted to the inner wall of the plugging ring 2, and the sealing rubber layer 16 improves the sealing performance of the plugging plug 5 and the plugging ring 2.

The inner wall of the valve body 1 close to the top end thereof is fixedly connected with a sleeve 6, the side surface of the valve body 1 is fixedly connected with a U-shaped guide pipe 7, the bottom end of the U-shaped guide pipe 7 penetrates into the valve body 1, and is positioned below the blocking ring 2, the top end of the U-shaped draft tube 7 penetrates into the valve body 1 and is positioned in the sleeve 6, the surface of the sleeve 6 close to the middle part thereof is provided with a strip-shaped through groove 8, when the blocking ring 2 is separated from the blocking plug 5 conveniently through the strip-shaped through groove 8, fluid can flow out from the strip-shaped through groove 8, the inner wall of the strip-shaped through groove 8 is connected with a sliding plate 9 in a sliding manner, one side of the sliding plate 9 close to the sealing plug 5 is hinged with a connecting rod 10, the bottom end of the connecting rod 10 is hinged with the top end of the push-pull rod 4, one side of the sliding plate 9 far away from the U-shaped draft tube 7 is fixedly connected with a compression assembly, one side of the compression assembly far away from the sliding plate 9 is fixedly connected, and one end of the pressure regulating component far away from the sliding plate 9 penetrates out of the side surface of the valve body 1 and is fixedly connected with a rotating handle.

Further, the compression assembly comprises an expansion link 11, the expansion link 11 is fixedly connected to the side of the pressure regulating assembly, one end of the expansion link 11 close to the sliding plate 9 is fixedly connected to the side of the sliding plate 9, a spring 12 is sleeved on the surface of the expansion link 11, two ends of the spring 12 are respectively fixedly connected to the side of the sliding plate 9 and the side of the pressure regulating assembly, when the pressure of fluid entering the bottom of the valve body 1 is too large, the fluid inside the valve body 1 can enter the sleeve 6 through the U-shaped flow guide pipe 7 under the action of the pressure, the fluid impacts the sliding plate 9, the sliding plate 9 can move towards one side far away from the U-shaped flow guide pipe 7 by overcoming the elastic force of the spring 12, under the action of the connecting rod 10 and the push-pull rod 4, the blocking plug 5 can be pulled to be separated from the blocking ring 2.

Further, the number of the telescopic rods 11 is two, the two telescopic rods 11 are symmetrically distributed on the side face of the sliding plate 9, and the two springs 12 and the telescopic rods 11 enable the sliding plate 9 to be balanced in stress and move more stably and smoothly under the impact of fluid.

Further, the pressure regulating assembly comprises a screw 13, the screw 13 is connected to the side face of the valve body 1 in a sealing and rotating mode through a bearing, a movable plate 14 is connected to the surface, close to one end of the sliding plate 9, of the screw 13 in a threaded mode, the side face of the movable plate 14 is fixedly connected with one end, far away from the sliding plate 9, of the telescopic rod 11, the screw 13 is driven to rotate through the rotating rotary handle, the movable plate 14 is connected with the screw 13 in a threaded mode, the rotation of the movable plate 14 is limited through the sliding plate 9, the connecting rod 10 and the push-pull rod 4, the movable plate 14 can move on the surface of the screw 13, the compression degree of the spring 12 can be changed, the fluid pressure required for pushing the sliding plate 9 to move can be changed, the fluid pressure required.

Further, the surface of the screw 13 is rotatably connected with a sealing ring 15, one side of the sealing ring 15 close to the valve body 1 is fixedly connected to the side surface of the valve body 1, and the sealing ring 15 plays a role in sealing the rotary connection position of the screw 13 and the valve body 1.

The working principle is as follows: when the lining safety valve with the balanced buffering corrosion-resistant function is used, when the pressure of fluid at the inlet end at the bottom of the valve body 1 is too high, the fluid in the valve body 1 enters the sleeve 6 through the U-shaped guide pipe 7 under the action of the pressure, impacts the sliding plate 9 to enable the sliding plate 9 to move towards one side far away from the U-shaped guide pipe 7 by overcoming the elasticity of the spring 12, under the action of the connecting rod 10 and the push-pull rod 4, the plugging plug 5 can be pulled to be separated from the plugging ring 2, so that a certain amount of fluid can be discharged through the U-shaped guide pipe 7 and the plugging ring 2, when the pressure is recovered to be normal, the sliding plate 9 is pushed to move towards one side close to the U-shaped guide pipe 7 under the action of the elasticity of the spring 12 to plug the sleeve 6, so as to prevent the fluid from flowing out of the U-shaped guide pipe 7, and meanwhile, under the action of the connecting rod 10 and the push-pull rod, the valve body 1 is closed to prevent fluid from flowing out continuously, so that equipment and a pipeline system are protected, the corrosion resistance of the valve body 1 and internal components thereof is improved by coating polytetrafluoroethylene on the surfaces of structures such as the sliding plate 9, the plugging plug 5, the plugging ring 2, the inner wall of the valve body 1 and the like, the sliding plate 9 is stressed in a balanced manner by the two springs 12 and the telescopic rod 11, the movement is more stable and smooth under the impact of the fluid, the rotating handle drives the screw 13 to rotate, and as the moving plate 14 is in threaded connection with the screw 13, and the rotation of the moving plate 14 is limited by the sliding plate 9, the connecting rod 10 and the push-pull rod 4, so that the moving plate 14 can move on the surface of the screw 13, thereby changing the degree of compression of the spring 12, the fluid pressure required by the movement of the push sliding plate 9 can be changed, the fluid pressure required by the opening of the valve body 1 can be changed, and the adaptability of the valve body 1 is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A lining safety valve with balanced buffer corrosion resistance function comprises a valve body (1), and is characterized in that: the inner wall of the valve body (1) close to the bottom end of the valve body is fixedly connected with a blocking ring (2), the inner wall of the valve body (1) close to the middle of the valve body is fixedly connected with a guide rod (3), the middle of the guide rod (3) is provided with a through hole, the inner wall of the through hole is connected with a push-pull rod (4) in a sliding manner, the bottom end of the push-pull rod (4) is fixedly connected with a blocking plug (5) for sealing the blocking ring (2), the inner wall of the valve body (1) close to the top end of the valve body is fixedly connected with a sleeve (6), the side surface of the valve body (1) is fixedly connected with a U-shaped flow guide pipe (7), the bottom end of the U-shaped flow guide pipe (7) penetrates into the valve body (1) and is positioned below the blocking ring (2), the top end of the U-shaped flow guide pipe (7) penetrates into the valve body (1) and is positioned in, the inner wall sliding connection that the groove (8) was led to the bar has slide (9), slide (9) are close to one side that seals up and block up (5) and articulate there is connecting rod (10), the bottom of connecting rod (10) is articulated with the top of push-and-pull rod (4), one side fixedly connected with compression subassembly of U type honeycomb duct (7) is kept away from in slide (9), one side fixedly connected with pressure regulating assembly of slide (9) is kept away from to compression subassembly, and the side and the fixedly connected with swing handle of valve body (1) are worn out to the one end that slide (9) were kept away from to pressure regulating assembly.

2. The liner safety valve with balanced buffer corrosion resistance function according to claim 1, wherein: the plug (5) is in a round table shape, a sealing rubber layer (16) is fixedly connected to the surface, close to the bottom end, of the plug (5), and the surface of the sealing rubber layer (16) is abutted to the inner wall of the plug ring (2).

3. The liner safety valve with balanced buffer corrosion resistance function according to claim 1, wherein: the compression assembly comprises a telescopic rod (11), the telescopic rod (11) is fixedly connected to the side face of the pressure regulating assembly, the telescopic rod (11) is close to one end of the sliding plate (9) and fixedly connected to the side face of the sliding plate (9), the surface of the telescopic rod (11) is sleeved with a spring (12), and the two ends of the spring (12) are respectively fixedly connected to the side faces of the sliding plate (9) and the pressure regulating assembly.

4. A lining safety valve having a balanced cushioning corrosion resistance function according to claim 3, wherein: the number of the telescopic rods (11) is two, and the two telescopic rods (11) are symmetrically distributed on the side face of the sliding plate (9).

5. A lining safety valve having a balanced cushioning corrosion resistance function according to claim 3, wherein: the pressure regulating assembly comprises a screw rod (13), the screw rod (13) is connected to the side face of the valve body (1) in a rotating mode through bearing sealing, a movable plate (14) is connected to the surface of the screw rod (13) close to one end of the sliding plate (9) in a threaded mode, and one end of the sliding plate (9) is far away from the side face of the movable plate (14) and the telescopic rod (11) in a fixed connection mode.

6. The liner safety valve with balanced buffer corrosion resistance function according to claim 5, wherein: the surface of the screw rod (13) is rotatably connected with a sealing ring (15), and one side, close to the valve body (1), of the sealing ring (15) is fixedly connected to the side face of the valve body (1).