CN210344419U - Anti-blocking safety valve - Google Patents

Abstract

The utility model provides a prevent stifled type relief valve relates to relief valve technical field and includes the valve body, the inside cavity that is equipped with of valve body, the inside closing plate that is equipped with the level setting of cavity, the equal fixedly connected with of closing plate both sides lateral wall is sealed fills up, sealed pad and the contact of cavity inner wall, two pressure release holes with the cavity intercommunication are seted up to the valve body lateral wall, sealed pad corresponds with the pressure release hole position, the spring that lateral wall and two symmetries of cavity roof fixedly connected with set up on the closing plate, lateral wall fixedly connected with connecting rod on the closing plate, the upper end of connecting rod runs through the valve body roof, is located the valve body outside the connecting strip that two levels of one end fixedly connected. The utility model discloses in for the inside gas of cavity can be followed the relief vent release, has played the effect of preventing stifled, avoids the pipeline to damage, prevents the emergence of incident.

Description

Anti-blocking safety valve

Technical Field

The utility model relates to a relief valve technical field especially relates to an anti-blocking type relief valve.

Background

The safety valve is a special valve, wherein the opening and closing part is in a normally closed state under the action of external force, and when the pressure of a medium in equipment or a pipeline rises to exceed a specified value, the medium is discharged to the outside of the system to prevent the pressure of the medium in the pipeline or the equipment from exceeding the specified value. The safety valve is mainly used for boiler, pressure container and pipeline, and its control pressure is not greater than specified value, so that it can play important role in protecting personal safety and equipment operation.

The existing safety valve has the phenomenon of blocking and clamping, so that the internal pressure of the safety valve and a pipeline is too high, the pipeline is cracked seriously, safety accidents occur, and the life safety of people is threatened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-blocking type relief valve to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize: an anti-blocking safety valve comprises a valve body, a cavity is arranged in the valve body, a sealing plate is horizontally arranged in the cavity, the side walls of the two sides of the sealing plate are fixedly connected with sealing gaskets which are contacted with the inner wall of the cavity, the outer side wall of the valve body is provided with two pressure reducing holes communicated with the cavity, the sealing gasket corresponds to the pressure reducing holes, the upper side wall of the sealing plate and the top wall of the cavity are fixedly connected with two symmetrically arranged springs, the upper side wall of the sealing plate is fixedly connected with a connecting rod, the upper end of the connecting rod penetrates through the top wall of the valve body, one end of the connecting rod positioned outside the valve body is fixedly connected with two connecting strips which are horizontally arranged, the lateral wall all is equipped with the anti-blocking mechanism who is connected with the connecting strip on the valve body both sides, the lateral wall is equipped with attraction mechanism on the valve body, lateral wall fixedly connected with is equipped with the first magnet that corresponds with attraction mechanism on the connecting strip.

Preferably, the attraction mechanism comprises a fixing plate fixedly connected to the upper side wall of the valve body, the upper side wall of the fixing plate is fixedly connected with a top plate, the lower side wall of the top plate is fixedly connected with two second magnets, and the second magnets correspond to the corresponding first magnets in position.

Preferably, prevent that stifled mechanism includes the stifled pipe of preventing of fixed connection at the valve body lateral wall, prevent stifled pipe and be L type structure, prevent stifled inside sliding connection and have the piston plate, piston plate below is equipped with two supporting shoes, the supporting shoe with prevent stifled inside pipe wall fixed connection, lateral wall fixedly connected with carriage release lever on the supporting shoe, the carriage release lever upper end extend to prevent stifled outside of tubes and with connecting strip fixed connection.

Preferably, the lower side wall of the valve body is fixedly connected with a bottom plate, an air inlet is formed in the bottom plate, and the air inlet is communicated with the cavity.

Preferably, the side wall of one side of the valve body is provided with an exhaust port communicated with the cavity.

Preferably, the sealing plate and the sealing gasket have the same height.

Preferably, the moving rod is arranged perpendicular to the connecting strip.

The utility model has the advantages that:

1. the movable rod, the connecting strip, the first magnet, the fixed plate, the connecting rod and the top plate are arranged; and second magnet, when the inside pressure of cavity is too high, inside gaseous meeting got into anti-blocking pipe 12, promote the piston board to shift up, the piston board drives the carriage release and shifts up, the carriage release drives the connecting strip and shifts up, first magnet and the mutual actuation of second magnet, there is a lifting force, thereby convenient drive the closing plate through the connecting rod and shift up, sealed pad does not block up the pressure release hole, thereby inside gas can be followed the release of pressure release hole, play and prevented stifled effect, avoid pipeline damage, prevent the emergence of incident.

2. Through setting up sealed pad and closing plate, played the effect to cavity internal seal, avoided gaseous the revealing of when internal pressure is little.

Drawings

Fig. 1 is a schematic structural view of an anti-blocking safety valve of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is an enlarged view of fig. 1 at B.

Reference numerals: 1. a valve body; 2. a base plate; 3. a cavity; 4. a travel bar; 5. a connecting strip; 6. a first magnet; 7. a fixing plate; 8. a connecting rod; 9. a top plate; 10. a second magnet; 11. a spring; 12. preventing the pipe from being blocked; 13. an exhaust port; 14. a sealing plate; 15. an air inlet; 16. a pressure relief vent; 17. a piston plate; 18. a support block; 19. and a gasket.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

In this embodiment 1, as shown in fig. 1, fig. 2 and fig. 3, an anti-blocking safety valve comprises a valve body 1, a cavity 3 is disposed inside the valve body 1, a sealing plate 14 horizontally disposed is disposed inside the cavity 3, sealing pads 19 are fixedly connected to both side walls of the sealing plate 14, the sealing pads 19 contact with the inner wall of the cavity 3, two pressure-reducing holes 16 communicated with the cavity 3 are disposed on the outer side wall of the valve body 1, the sealing pads 19 correspond to the pressure-reducing holes 16, two symmetrically disposed springs 11 are fixedly connected to the upper side wall of the sealing plate 14 and the top wall of the cavity 3, a connecting rod 8 is fixedly connected to the upper side wall of the sealing plate 14, the upper end of the connecting rod 8 penetrates through the top wall of the valve body 1, two horizontally disposed connecting strips 5 are fixedly connected to one end of the connecting rod 8 located outside the valve body 1, anti, the lateral wall fixedly connected with 6 that the connecting strip 5 corresponds with attraction mechanism, and gas gets into cavity 3 through air inlet 15, and when the inside gas pressure of cavity 3 was too big, the cooperation of preventing stifled mechanism and attraction mechanism made closing plate 14 and sealed 19 shift up, and relief vent 16 is opened to play the effect of pressure release, avoided relief valve and pipeline to damage, prevented the emergence of incident.

The specific arrangement and function of the anti-blocking mechanism and the suction mechanism will be described in detail below.

As shown in fig. 1, the attraction mechanism includes a fixing plate 7 fixedly connected to an upper side wall of the valve body 1, a top plate 9 fixedly connected to an upper side wall of the fixing plate 7, two second magnets 10 fixedly connected to a lower side wall of the top plate 9, and the second magnets 10 correspond to the corresponding first magnets 6 in position.

The motion principle and the achieved effect of the whole attraction mechanism are as follows: the first magnet 6 and the second magnet 10 are attracted to each other and have a lifting force, so that the sealing plate 14 is conveniently driven to move upwards through the connecting rod 8, the sealing plate 14 is conveniently moved upwards, and the pressure relief hole 16 is conveniently opened.

As shown in fig. 1, the anti-blocking mechanism includes an anti-blocking pipe 12 fixedly connected to the outer side wall of the valve body 1, the anti-blocking pipe 12 is of an L-shaped structure, a piston plate 17 is slidably connected to the inside of the anti-blocking pipe 12, two support blocks 18 are arranged below the piston plate 17, the support blocks 18 are fixedly connected to the inner wall of the anti-blocking pipe 12, a movable rod 4 is fixedly connected to the upper side wall of each support block 18, and the upper end of each movable rod 4 extends to the outside of the anti-blocking pipe 12 and is fixedly connected to.

The motion principle and the achieved effect of the whole anti-blocking mechanism are as follows: gas gets into cavity 3 through air inlet 15, when the inside gas pressure of cavity 3 is too big, gas can get into and prevent stifled inside 12, promote piston plate 17 and move up, piston plate 17 drives carriage release 4 and shifts up, carriage release 4 drives connecting strip 5 and moves up, thereby convenient drive closing plate 14 through connecting rod 8 and move up, sealed 19 that fills up does not block 16 the relief vent, thereby inside gas can be followed 16 releases in the relief vent, the effect of preventing stifled has been played, avoid relief valve and pipeline to damage, prevent the emergence of incident.

As shown in figure 1, the lower side wall of the valve body 1 is fixedly connected with a bottom plate 2, an air inlet 15 is formed in the bottom plate 2, the air inlet 15 is communicated with the cavity 3, and air enters the cavity 3 through the air inlet 15.

As shown in fig. 1, a side wall of the valve body 1 is provided with an exhaust port 13 communicating with the chamber 3, and the gas is exhausted through the exhaust port 13.

As shown in fig. 1, the sealing plate 14 and the gasket 19 have the same height.

As shown in fig. 1, the moving bar 4 is disposed perpendicular to the connecting bar 5.

The utility model discloses in, gas gets into cavity 3 through air inlet 15, when the inside gas pressure of cavity 3 is too big, gas can get into and prevent stifled inside 12, promote piston plate 17 and move up, piston plate 17 drives carriage release 4 and shifts up, carriage release 4 drives connecting strip 5 and moves up, first magnet 6 and the mutual actuation of second magnet 10, there is a lifting force, thereby it is convenient to drive closing plate 14 through connecting rod 8 and move up, sealed 19 that fill up do not block 16 relief holes, thereby inside gas can be followed 16 releases of relief holes, the effect of preventing blocking up has been played, avoid the pipeline to damage, prevent the emergence of incident, when pressure drops down, because spring 11's elasticity and self gravity, closing plate 14 resumes the normal position.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides an anti-blocking type relief valve, includes the valve body, its characterized in that: the inside cavity that is equipped with of valve body, the inside closing plate that is equipped with the level and sets up of cavity, the equal fixedly connected with of closing plate both sides lateral wall is sealed fills up, sealed pad and the contact of cavity inner wall, two pressure release holes that communicate with the cavity are seted up to the valve body lateral wall, sealed pad corresponds with the pressure release hole position, lateral wall and the two symmetrical springs that set up of cavity roof fixedly connected with on the closing plate, lateral wall fixedly connected with connecting rod on the closing plate, the valve body roof is run through to the upper end of connecting rod, is located the valve body outside the connecting strip that two levels of one end fixedly connected with of connecting rod set up, valve body both sides lateral wall all is equipped with the anti-blocking mechanism who is connected with the connecting strip, the lateral wall is equipped with attraction mechanism on the valve.

2. An anti-clog safety valve, according to claim 1, wherein: the attraction mechanism comprises a fixing plate fixedly connected to the upper side wall of the valve body, the upper side wall of the fixing plate is fixedly connected with a top plate, two second magnets are fixedly connected to the lower side wall of the top plate, and the second magnets correspond to the corresponding first magnets in position.

3. An anti-clog safety valve, according to claim 1, wherein: prevent stifled mechanism including the stifled pipe of preventing of fixed connection at the valve body lateral wall, prevent stifled pipe and be L type structure, prevent stifled inside sliding connection and have the piston plate, piston plate below is equipped with two supporting shoes, the supporting shoe with prevent stifled inside pipe wall fixed connection, lateral wall fixedly connected with carriage release lever on the supporting shoe, the carriage release lever upper end extend to prevent stifled outside of pipe and with connecting strip fixed connection.

4. An anti-clog safety valve, according to claim 1, wherein: the lower side wall of the valve body is fixedly connected with a bottom plate, an air inlet is formed in the bottom plate, and the air inlet is communicated with the cavity.

5. An anti-clog safety valve, according to claim 1, wherein: and an exhaust port communicated with the cavity is formed in the side wall of one side of the valve body.

6. An anti-clog safety valve, according to claim 1, wherein: the sealing plate and the sealing gasket are the same in height.

7. An anti-clog safety valve, according to claim 3, wherein: the movable rod is perpendicular to the connecting strip.

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