CN209876055U - One-way non-return explosion-proof isolating valve - Google Patents

Abstract

The embodiment of the utility model discloses an explosion-proof isolating valve with one-way check, which comprises a valve body, wherein the left end of the valve body is an isolation protection end, the right end of the valve body is an explosion-proof isolation end, the isolation protection end of the valve body is provided with a manual closing component, the explosion-proof isolation end of the valve body is provided with an explosion-proof component, the one-way check component is arranged between the explosion-proof component and the manual closing component, the explosion-proof component comprises a closing component and two pressure chambers, a connecting component is arranged between the pressure chambers and the closing component, the back flow of media in a pipeline can be prevented by arranging the two check plates, when the pipeline explodes, the pipeline generates larger impact force, when the impact force reaches a certain value, the valve can be closed by the closing plate in the explosion-proof component, the explosion impact force can be effectively avoided to be too large, and the damage of the one-way check component, the medium in the pipeline can flow, and the use is more convenient.

Description

One-way non-return explosion-proof isolating valve

Technical Field

The embodiment of the invention relates to the technical field of one-way anti-explosion check valves, in particular to a one-way non-return anti-explosion isolating valve.

Background

The check valve is a valve in which an opening and closing member is a circular valve flap and acts by its own weight and medium pressure to block the reverse flow of a medium, and the check valve is a type of valve that allows a medium to flow in one direction only and blocks the reverse flow, and has been widely used in industrial production, and attention is paid to the check valve.

However, most of the existing check valves can only prevent the reverse flow of the medium, and when an explosion occurs in the pipeline, the generated strong recoil force can easily cause the check component inside the check valve, and the valve is failed or damaged due to the large impact force, which is to be solved.

Disclosure of Invention

Therefore, the embodiment of the invention provides a one-way non-return explosion-proof isolation valve, which can drive the movement of an explosion-proof assembly through the pressure generated by explosion, realize secondary sealing and protection of the valve, and effectively solve the problem of failure or damage of the valve caused by the fact that the impact force generated during explosion exceeds the load of a non-return part in the check valve in the prior art.

In order to achieve the above object, an embodiment of the present invention provides the following:

in a first aspect of an embodiment of the present invention, a one-way non-return explosion-proof isolation valve is provided, which includes a valve body, wherein the left end of the valve body is an isolation protection end, the right end of the valve body is an explosion-proof isolation end, the isolation protection end of the valve body is provided with a manual closing component, the explosion-proof isolation end of the valve body is provided with an explosion-proof component, and a one-way non-return component is arranged between the explosion-proof component and the manual closing component;

the explosion-proof assembly comprises a sealing member and two pressure chambers, and a connecting member is arranged between the pressure chambers and the sealing member;

the two pressure chambers are respectively arranged at the upper end and the lower end of the inner wall of the valve body, mounting grooves are formed in the bottoms of the pressure chambers, and pressure plates are mounted in the mounting grooves through springs;

the sealing member comprises an upper sliding guide groove and a lower sliding guide groove, a sealing plate is connected in the two sliding guide grooves through springs, and an embedded fixing groove is formed in one side, close to the pressure chamber, of the sealing plate;

the connecting component comprises a pressing rod arranged on the pressure chamber and a fixing rod rotatably connected to the valve body, one end of the fixing rod is fixed in the embedded fixing groove, and the other end of the fixing rod is connected with one end, far away from the pressure chamber, of the pressing rod.

As a preferred technical scheme, one-way non return subassembly is including the installation diaphragm, spacing recess has all been seted up on the upper and lower two sides of installation diaphragm spacing recess internal rotation is connected with the check board.

As an optimal technical scheme of the utility model, the rotation junction of check plate and spacing recess is provided with the torsional spring.

As an optimal technical scheme of the utility model, manual closed subassembly is including deciding board and rotor plate, the rotor plate rotates through rotating the groove and connects on deciding the board, just one side that the rotor plate kept away from and decides the board is provided with the bevel gear, one side meshing of bevel gear has bevel gear, be connected with the connecting rod that runs through the valve body on the bevel gear, the one end of keeping away from bevel gear at the connecting rod is provided with the rotary disk.

As an optimized technical scheme, a plurality of corresponding through holes are all opened on the fixed plate and the rotating plate.

As an optimized technical scheme of the utility model, two be provided with the embedding piece and the recess of a plurality of gomphosis each other between the one side homogeneous phase that the closing plate corresponds.

According to the embodiment of the invention, the following advantages are provided:

the utility model provides an one-way non return subassembly is when using, two check boards that the accessible set up, can make the medium in the pipeline only can one-way pass through, and can not reverse circulation, when exploding in the pipeline, the impact force of its explosion can make the medium in the pipeline against the current, can cause great impact force to the check board, when the impact force reaches certain value, then can be by the closed plate among the explosion-proof subassembly seal the valve, can effectually avoid explosion impact force too big in the pipeline, make one-way non return subassembly inefficacy, lead to the problem of intraductal inside medium backward flow, the practicality is stronger.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is a front view of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is a schematic cross-sectional front view of the present invention;

FIG. 4 is a schematic view of the construction of the bevel gear of the present invention;

fig. 5 is an enlarged view of a portion of a structure shown in fig. 3.

Reference numbers in the figures:

1-a manual closure assembly; 2-one-way check assembly; 3-an explosion-proof component; 4-a valve body;

101-fixing a plate; 102-a rotating plate; 103-bevel gear; 104-bevel gear; 105-rotating the disc; 106-rotating slot; 107-connecting rod;

201-installing a transverse plate; 202-a limit groove; 203-check plate; 204-torsion spring;

301-a pressure chamber; 302-a closure member; 303-a connecting member; 304-mounting grooves; 305-a pressure plate; 306-a sliding guide slot; 307-closing plate; 308-embedding a fixing groove; 309-pressing rod; 310-a fixing bar; 311-embedded block; 312-groove.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, an explosion-proof isolating valve of one-way non return, including valve body 4, the left end of valve body 4 is the isolation protection end, the right-hand member of valve body 4 is explosion-proof isolation end, the isolation protection end of valve body 4 is provided with manual closed component 1, just the explosion-proof isolation end of valve body 4 is provided with explosion-proof subassembly 3 be provided with one-way non return subassembly 2 between explosion-proof subassembly 3 and the manual closed component 1, the top of valve body 4 is provided with the apron, rotates in the top of apron to be connected with the dwang that is used for fixed cover board, the installation caulking groove has been seted up on the dwang, and the place ahead of valve body is rotated and is connected with the clamping screw who corresponds with the dwang, the clamping screw embedding uses the nut to fix the dead lever in the installation caulking groove, after the explosion takes place, can convenience.

The explosion-proof assembly 3 comprises a closing member 302 and two pressure chambers 301, a connecting member 303 is arranged between the pressure chambers 301 and the closing member 302, the two pressure chambers 301 are respectively arranged at the upper end and the lower end of the inner wall of the valve body 4, mounting grooves 304 are respectively formed in the bottoms of the pressure chambers 301, and pressure plates 305 are mounted in the mounting grooves 304 through springs; when the explosion impact force reaches the one-way check assembly 2, the one-way check assembly 2 prevents the explosion impact force from continuously diffusing, and the pressure chamber 301 arranged therein enables the pressure plate 305 to move under the action of the impact force, so that the valve can play a role in buffering to a certain extent, and the damage of the explosion to the valve can be reduced.

The sealing member 302 comprises an upper sliding guide groove 306 and a lower sliding guide groove 306, a sealing plate 307 is connected in each sliding guide groove 306 through a spring, and an embedding fixing groove 308 is formed in one side, close to the pressure chamber 301, of the sealing plate 307; the connecting member 303 comprises a pressing rod 309 disposed on the pressure chamber 301 and a fixing rod 310 rotatably connected to the valve body 4, one end of the fixing rod 310 is fixed in the insertion fixing groove 308, and the other end of the fixing rod 310 is connected to one end of the pressing rod 309 far from the pressure chamber 301, when the impact force generated by explosion reaches a certain value, the pressure plate 305 will abut against the pressing rod 309, so that the pressing rod 309 moves under the action of the pressure plate 305, the pressing rod 309 will abut against the fixing rod 310, so that the fixing rod 310 is separated from the insertion fixing groove 308, and the sealing plate 307 rapidly seals the whole valve under the action of the spring, thereby effectively avoiding the excessive explosion impact force, causing irreparable damage to the disposed one-way check assembly 2, an embedded pull handle is disposed on one side of the sealing plate, so that the sealing plate 307 can be manually restored by opening the cover plate after the sealing plate 307 is closed, the use is more convenient for users.

The utility model discloses in, one-way non return subassembly 2 is including installation diaphragm 201, spacing recess 202 has all been seted up on the upper and lower two sides of installation diaphragm 201 spacing recess 202 internal rotation is connected with check plate 203, and one side of spacing recess 202 has certain inclination, carries out spacing to check plate 203, still is provided with the lug that uses with spacing recess 202 cooperation in valve body 4, and its lug also carries on spacingly to check plate 203, guarantees that check plate 203 can not be too big because of the pressure of medium backward flow in the pipeline, leads to making it lose effect because of the rotation is excessive.

The utility model discloses in, the rotation junction of check plate 203 and spacing recess 202 is provided with torsional spring 204, and when using, the medium in the pipeline can overcome torsional spring 204's power and dash open check plate 203 and circulate, but when flowing back, its produced pressure can withstand check plate 203, makes its counter rotation withstand the lug and seals the valve, realizes the non return effect of this valve.

The utility model discloses in, manual closed subassembly 1 is including deciding board 101 and rotor plate 102, decide and all set up a plurality of through-holes that correspond on board 101 and the rotor plate 102, when through-hole on rotor plate 102 and the through-hole on deciding board 101 are in same position, then can communicate both ends, make the medium normal through this valve, when the through-hole on deciding board 101 misplaces with the through-hole of rotor plate 102, then can seal the valve, prevent the circulation of medium, rotor plate 102 rotates through rotation groove 106 and connects on deciding board 101, just one side that stator plate 101 was kept away from to rotor plate 102 is provided with oblique shape gear 103, one side meshing of oblique shape gear 103 has bevel gear 104, be connected with the connecting rod 107 that runs through valve body 4 on the bevel gear 104, the one end of keeping away from bevel gear 104 at connecting rod 107 is provided with rotary disk 105. During the use, rotate rotary disk 105, accessible connecting rod 107 drives the rotation of conical gear 104, and then can realize the rotation of bevel gear 103 by the rotation of conical gear 104, finally realize the rotation of rotor plate 102, its rotor plate 102 rotates the rotation groove 106 of connecting on fixed plate 101 and is the annular structure, and be provided with the rubber pad in rotation groove 106, its rubber pad only plays sealed effect, and can not cause too big resistance to the rotation, when guaranteeing to carry out manual closed valve through rotary disk 105, can be more convenient.

The utility model discloses in, two be provided with the embedding piece 311 and the recess 312 of a plurality of gomphosis each other between the one side homogeneous phase that the closing plate 307 corresponds to this guarantees can effectual sealing valve, more practical through the closing plate.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (6)

1. The utility model provides an explosion-proof isolating valve of one-way non return, includes valve body (4), its characterized in that: the left end of the valve body (4) is an isolation protection end, the right end of the valve body (4) is an explosion-proof isolation end, the isolation protection end of the valve body (4) is provided with a manual closing assembly (1), the explosion-proof isolation end of the valve body (4) is provided with an explosion-proof assembly (3), and a one-way check assembly (2) is arranged between the explosion-proof assembly (3) and the manual closing assembly (1);

the explosion-proof assembly (3) comprises a closing member (302) and two pressure chambers (301), wherein a connecting member (303) is arranged between the pressure chambers (301) and the closing member (302);

the two pressure chambers (301) are respectively arranged at the upper end and the lower end of the inner wall of the valve body (4), mounting grooves (304) are formed in the bottoms of the pressure chambers (301), and pressure plates (305) are mounted in the mounting grooves (304) through springs;

the sealing component (302) comprises an upper sliding guide groove and a lower sliding guide groove (306), a sealing plate (307) is connected in each sliding guide groove (306) through a spring, and an embedding fixing groove (308) is formed in one side, close to the pressure chamber (301), of the sealing plate (307);

the connecting component (303) comprises a pressing rod (309) arranged on the pressure chamber (301) and a fixing rod (310) rotatably connected to the valve body (4), one end of the fixing rod (310) is fixed in the embedding fixing groove (308), and the other end of the fixing rod (310) is connected with one end, far away from the pressure chamber (301), of the pressing rod (309).

2. A one-way non-return explosion-proof isolation valve as defined in claim 1, wherein: one-way non return subassembly (2) are including installation diaphragm (201), spacing recess (202) have all been seted up to the upper and lower two sides of installation diaphragm (201) spacing recess (202) internal rotation is connected with check board (203).

3. A one-way non-return explosion-proof isolation valve as defined in claim 2, wherein: and a torsion spring (204) is arranged at the rotary connection part of the check plate (203) and the limiting groove (202).

4. A one-way non-return explosion-proof isolation valve as defined in claim 1, wherein: manual closing assembly (1) is including deciding board (101) and rotor plate (102), rotor plate (102) rotate through rotating groove (106) and connect on deciding board (101), just one side that stator plate (101) were kept away from to rotor plate (102) is provided with bevel gear (103), one side meshing of bevel gear (103) has bevel gear (104), be connected with connecting rod (107) that run through valve body (4) on bevel gear (104), the one end of keeping away from bevel gear (104) at connecting rod (107) is provided with rotary disk (105).

5. A one-way non-return explosion-proof isolation valve as claimed in claim 4, wherein: the fixed plate (101) and the rotating plate (102) are provided with a plurality of corresponding through holes.

6. A one-way non-return explosion-proof isolation valve as defined in claim 1, wherein: a plurality of embedded blocks (311) and grooves (312) which can be embedded with each other are alternately arranged on one corresponding surface of each of the two closing plates (307).