阅读说明：本技术 阀芯组件和安全阀 (Valve core assembly and safety valve ) 是由 吴松 石峰 曹月秋 张天乐 邵林 张克楠 黎春梅 谭术洋 周宁 于 2019-12-13 设计创作，主要内容包括：本发明涉及阀门设备技术领域,尤其涉及一种阀芯组件和安全阀。该阀芯组件包括：阀瓣,阀瓣包括主体部和封盖部,主体部的内部开设有升力腔,封盖部能够开启或封盖阀座的阀口,主体部上设置有第一通孔；波纹管,波纹管设置在升力腔内,波纹管的一端连接阀瓣的封盖部,波纹管的另一端用于与阀座相对固定。该阀芯组件和该安全阀,阀芯组件与过压介质的接触面积相较于只通过封盖部与过压介质相接触的接触面积显著增大,进而提高了该阀芯组件在过压介质作用下的上升力,进而该阀芯组件的提高了开启速度和泄压及时性,缩短了开启时间。(The invention relates to the technical field of valve equipment, in particular to a valve core assembly and a safety valve. The valve core assembly comprises: the valve flap comprises a main body part and a sealing cover part, wherein a lifting cavity is formed in the main body part, the sealing cover part can open or seal a valve port of the valve seat, and a first through hole is formed in the main body part; the bellows, the bellows sets up in the lift intracavity, and the closing cap portion of valve clack is connected to the one end of bellows, and the other end of bellows is used for relatively fixing with the disk seat. This case subassembly and this relief valve, the area of contact of case subassembly and excessive pressure medium compares and is showing the increase in the area of contact that only contacts through capping portion and excessive pressure medium, and then has improved the lift of this case subassembly under the excessive pressure medium effect, and then this case subassembly improved opening speed and pressure release promptness, shortened opening time.)

1. A valve cartridge assembly, comprising:

the valve flap comprises a main body part and a sealing cover part, a lifting cavity is formed in the main body part, the sealing cover part can open or close a valve port of a valve seat, and a first through hole is formed in the main body part;

the corrugated pipe is arranged in the lift force cavity, one end of the corrugated pipe is connected with the sealing cover part, and the other end of the corrugated pipe is used for being fixed relative to the valve seat.

2. The valve core assembly of claim 1, wherein the valve flap further comprises a kickback portion disposed within the lift chamber and connected to the cover portion;

the edge the outside to inside direction of main part, the axis of first through-hole is gradually to keeping away from the direction of closing cap portion extends, recoil portion gradually to being close to the direction of closing cap portion extends, just recoil portion with first through-hole corresponds the setting.

3. The valve core assembly of claim 2,

the number of the first through holes is multiple, and the first through holes are distributed along the circumferential direction of the main body part;

the kick portion continuously extends in a circumferential direction of the main body portion to form an annular kick portion.

4. The spool assembly of claim 2, further comprising:

the fixing seat comprises a disk part and a hollow shaft part, and the hollow shaft part is arranged on the disk part in a penetrating way; the main body part is sleeved outside the hollow shaft part;

the guide shaft comprises a first shaft part, a second shaft part and a limiting part which are sequentially connected, wherein the radial size of the first shaft part is smaller than that of the second shaft part, and the radial size of the second shaft part is smaller than that of the limiting part;

the disk portion be used for with disk seat fixed connection, hollow axial region stretches into the lift intracavity is located the first axle portion is outer, spacing portion is connected the capping portion, the bellows cover is located outside the second axle portion, just the both ends of bellows are connected respectively spacing portion with the terminal surface of hollow axial region.

5. The spool assembly of claim 4, further comprising:

the pivoting ball and the pivoting condyle are arranged in the lifting cavity, the outer part of the pivoting condyle is fixedly connected with the cover part, and the pivoting ball is embedded in the pivoting condyle in a rotatable manner;

the surface of the limiting part facing the cover sealing part is provided with a mounting groove, and the part of the pivot ball is exposed out of the pivot condyle and is fixedly arranged in the mounting groove.

6. A safety valve comprising a valve seat and a spool assembly of claim 4 or 5;

a through hole is formed in the valve seat, the axis of the through hole is parallel to the axis of the corrugated pipe, and the disc part of the fixed seat covers one end of the through hole;

the valve seat is also provided with a liquid inlet channel and a liquid outlet channel, the other end of the through hole is communicated with the liquid inlet channel, a valve port is formed at the joint of the through hole and the liquid inlet channel, and the liquid outlet channel is communicated with the middle part of the through hole;

the valve clack and the corrugated pipe of the valve core assembly are arranged in the through hole, and the sealing cover part of the valve clack can open or seal the valve port so as to correspondingly communicate or block the liquid inlet channel and the liquid outlet channel.

7. The safety valve of claim 6, further comprising a valve cover assembly:

the valve cover assembly comprises a valve body, an elastic part, a pressure rod and a pressure plate; the valve body comprises a supporting part, an extending part and a connecting part which are connected in sequence, the extending part extends along the axis of the corrugated pipe, and the connecting part is connected with the valve seat; one end of the pressure lever can be slidably arranged in the supporting part in a penetrating way, the other end of the pressure lever is a pressure lever diameter expanding end and is abutted against the guide shaft, and the pressure plate is arranged between the two ends of the pressure lever;

the elastic piece is supported between the supporting part and the pressing plate, and the elastic piece has the tendency that the pressing plate presses the diameter expanding end of the pressing rod.

8. The safety valve of claim 7, further comprising a manual opening assembly; the manual opening assembly comprises a fixed piece, a manual rod, a connecting rod and a wane;

the fixing piece is fixedly connected with the connecting part, one end of the manual rod is in threaded connection with the fixing piece, two ends of the connecting rod are respectively hinged with the other end of the manual rod and the warping plate, and the warping plate is abutted to the end face, facing the diameter expansion end of the pressure rod, of the pressure plate;

when the manual lever is rotated in a direction away from the valve seat, the pressing plate can be made to compress the elastic member.

9. The safety valve of claim 7, further comprising an electromagnetic assist assembly:

the electromagnetic auxiliary assembly comprises a first shell, a second shell, a push rod, a coil support, a guide cylinder, a stop seat, a movable iron core and a static iron core;

the first shell is supported between the second shell and the supporting part, the coil support is a cylindrical support, axial lines of the coil support are parallel to each other relative to the axial direction of the corrugated pipe, the coil is wound on the outer ring of the coil support, the movable iron core and the static iron core are both arranged in the coil support, and the static iron core is positioned on one side of the movable iron core, which is far away from the first shell;

one end of the guide cylinder extends into the first shell, and the movable iron core can move in the guide cylinder and the coil support; the other end of the guide cylinder is sealed with a stop seat and extends into the second shell;

the push rod penetrates through the stop seat, one end of the push rod is located in the guide cylinder and fixedly connected with the static iron core, the other end of the push rod is a push rod diameter expanding end and located in the second shell, and the push rod diameter expanding end abuts against the pressure rod.

10. The safety valve of claim 6, further comprising:

the sleeve is arranged in the through hole and sleeved outside the valve clack; one end of the sleeve is abutted against the fixed seat, and the other end of the sleeve is abutted against the wall surface of the valve seat corresponding to the valve port;

the side wall of the sleeve is provided with a second through hole, and the second through hole can be communicated with the first through hole and the liquid outlet channel.

Technical Field

The invention relates to the technical field of valve equipment, in particular to a valve core assembly and a safety valve.

Background

The safety valve is a special valve which is in a normally closed state under the action of external force, and when the medium pressure in equipment or a pipeline rises to exceed a preset value, the medium pressure in the pipeline or the equipment is prevented from exceeding a specified value by opening the valve clack assembly to discharge the medium outwards, so that the safety valve plays an important role in protecting personal safety and equipment operation.

Disclosure of Invention

The first purpose of the present invention is to provide a valve core assembly with fast opening speed, short opening time and timely pressure relief.

The second purpose of the invention is to provide a safety valve with fast opening speed, short opening time and timely pressure relief.

In order to achieve the above object, the present invention provides the following technical solutions;

in view of the first object, the present invention provides a valve core assembly, including:

the valve flap comprises a main body part and a sealing cover part, a lifting cavity is formed in the main body part, the sealing cover part can open or close a valve port of a valve seat, and a first through hole is formed in the main body part;

the corrugated pipe is arranged in the lift force cavity, one end of the corrugated pipe is connected with the sealing cover part, and the other end of the corrugated pipe is used for being fixed relative to the valve seat.

In any of the above technical solutions, optionally, the valve flap further includes a recoil portion, and the recoil portion is disposed in the lift force cavity and connected to the cover portion;

the edge the outside to inside direction of main part, the axis of first through-hole is gradually to keeping away from the direction of closing cap portion extends, recoil portion gradually to being close to the direction of closing cap portion extends, just recoil portion with first through-hole corresponds the setting.

In any of the above technical solutions, optionally, the number of the first through holes is multiple, and the multiple first through holes are arranged along the circumferential direction of the main body portion;

the kick portion continuously extends in a circumferential direction of the main body portion to form an annular kick portion.

In any one of the above technical solutions, optionally, the valve core assembly further includes:

the fixing seat comprises a disk part and a hollow shaft part, and the hollow shaft part is arranged on the disk part in a penetrating way; the main body part is sleeved outside the hollow shaft part;

the guide shaft comprises a first shaft part, a second shaft part and a limiting part which are sequentially connected, wherein the radial size of the first shaft part is smaller than that of the second shaft part, and the radial size of the second shaft part is smaller than that of the limiting part;

the disk portion be used for with disk seat fixed connection, hollow axial region stretches into the lift intracavity is located the first axle portion is outer, spacing portion is connected the capping portion, the bellows cover is located outside the second axle portion, just the both ends of bellows are connected respectively spacing portion with the terminal surface of hollow axial region.

In any one of the above technical solutions, optionally, the valve core assembly further includes:

the pivoting ball and the pivoting condyle are arranged in the lifting cavity, the outer part of the pivoting condyle is fixedly connected with the cover part, and the pivoting ball is embedded in the pivoting condyle in a rotatable manner;

the surface of the limiting part facing the cover sealing part is provided with a mounting groove, and the part of the pivot ball is exposed out of the pivot condyle and is fixedly arranged in the mounting groove.

Based on the second object, the safety valve provided by the invention comprises a valve seat and the valve core assembly in any technical scheme;

a through hole is formed in the valve seat, the axis of the through hole is parallel to the axis of the corrugated pipe, and the disc part of the fixed seat covers one end of the through hole;

the valve seat is also provided with a liquid inlet channel and a liquid outlet channel, the other end of the through hole is communicated with the liquid inlet channel, a valve port is formed at the joint of the through hole and the liquid inlet channel, and the liquid outlet channel is communicated with the middle part of the through hole;

the valve clack and the corrugated pipe of the valve core assembly are arranged in the through hole, and the sealing cover part of the valve clack can open or seal the valve port so as to correspondingly communicate or block the liquid inlet channel and the liquid outlet channel.

In any of the above solutions, optionally, the safety valve further comprises a valve cover assembly;

the valve cover assembly comprises a valve body, an elastic part, a pressure rod and a pressure plate; the valve body comprises a supporting part, an extending part and a connecting part which are connected in sequence, the extending part extends along the axis of the corrugated pipe, and the connecting part is connected with the valve seat; one end of the pressure lever can be slidably arranged in the supporting part in a penetrating way, the other end of the pressure lever is a pressure lever diameter expanding end and is abutted against the guide shaft, and the pressure plate is arranged between the two ends of the pressure lever;

the elastic piece is supported between the supporting part and the pressing plate, and the elastic piece has the tendency that the pressing plate presses the diameter expanding end of the pressing rod.

In any of the above solutions, optionally, the safety valve further comprises a manual opening assembly; the manual opening assembly comprises a fixed piece, a manual rod, a connecting rod and a wane;

the fixing piece is fixedly connected with the connecting part, one end of the manual rod is in threaded connection with the fixing piece, two ends of the connecting rod are respectively hinged with the other end of the manual rod and the warping plate, and the warping plate is abutted to the end face, facing the diameter expansion end of the pressure rod, of the pressure plate;

when the manual lever is rotated in a direction away from the valve seat, the pressing plate can be made to compress the elastic member.

In any of the above solutions, optionally, the safety valve further comprises an electromagnetic auxiliary component;

the electromagnetic auxiliary assembly comprises a first shell, a second shell, a push rod, a coil support, a guide cylinder, a stop seat, a movable iron core and a static iron core;

the first shell is supported between the second shell and the supporting part, the coil support is a cylindrical support, axial lines of the coil support are parallel to each other relative to the axial direction of the corrugated pipe, the coil is wound on the outer ring of the coil support, the movable iron core and the static iron core are both arranged in the coil support, and the static iron core is positioned on one side of the movable iron core, which is far away from the first shell;

one end of the guide cylinder extends into the first shell, and the movable iron core can move in the guide cylinder and the coil support; the other end of the guide cylinder is sealed with a stop seat and extends into the second shell;

the push rod penetrates through the stop seat, one end of the push rod is located in the guide cylinder and fixedly connected with the static iron core, the other end of the push rod is a push rod diameter expanding end and located in the second shell, and the push rod diameter expanding end abuts against the pressure rod.

In any of the above solutions, optionally, the safety valve further includes:

the sleeve is arranged in the through hole and sleeved outside the valve clack; one end of the sleeve is abutted against the fixed seat, and the other end of the sleeve is abutted against the wall surface of the valve seat corresponding to the valve port;

the side wall of the sleeve is provided with a second through hole, and the second through hole can be communicated with the first through hole and the liquid outlet channel.

By adopting the technical scheme, the invention has the beneficial effects that:

the valve core assembly provided by the invention comprises a valve clack and a corrugated pipe, wherein the corrugated pipe is arranged in a lift force cavity in the valve clack, one end of the corrugated pipe is connected with the valve clack, and the other end of the corrugated pipe is connected with a valve body. Because the bellows can take place the deformation under the effect of the medium of lift intracavity to drive the valve clack and remove to the direction of keeping away from the valve port of disk seat, so the area of contact of this case subassembly and excessive pressure medium is compared and is showing the increase in the area of contact that only contacts with excessive pressure medium through the capping portion, and then has improved the lift of this case subassembly under the effect of excessive pressure medium, and then this case subassembly improved opening speed and pressure release timeliness, shortened opening time.

The safety valve provided by the invention comprises the valve core assembly, and can realize all beneficial technical effects which can be realized by the valve core assembly.

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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a first structural schematic diagram of a valve core assembly according to an embodiment of the present invention;

fig. 2 is a second structural schematic diagram of the valve core assembly according to the first embodiment of the invention;

fig. 3 is a schematic structural diagram of a valve flap of the valve core assembly according to a second embodiment of the present invention;

fig. 4 is a schematic structural diagram of a safety valve according to a second embodiment of the present invention;

fig. 5 is a schematic structural diagram of an electromagnetic auxiliary assembly of a safety valve according to a second embodiment of the present invention;

fig. 6 is a schematic structural diagram of a manual actuation assembly of a safety valve according to a second embodiment of the present invention.

Icon: 1-a valve core assembly; 10-a valve flap; 100-a main body portion; 101-a capping portion; 102-a lift chamber; 103-recoil part; 104-a first via; 11-a bellows; 12-a fixed seat; 120-a disc portion; 121-a hollow shaft portion; 122-a seal; 13-a guide shaft; 130-a first shaft portion; 131-a second shaft portion; 132-a limiting part; 14-a pivot ball; 15-pivoting condyles; 2-safety valve; 20-a valve seat; 21-valve port; 22-a liquid inlet channel; 23-a liquid outlet channel; 240-a support; 241-an extension; 242-a connecting portion; 243-elastic member; 244-a plunger; 245-a platen; 246-a pressure bar flare end; 247-pretensioning screws; 250-a fixture; 251-a manual lever; 252-a connecting rod; 253-rocker; 260-a first housing; 261-a second housing; 262-a push rod; 263-coil; 264-coil support; 265-a guide cylinder; 266-a stop seat; 267-a movable iron core; 268-a stationary core; 269-push rod enlarged end; 27-a sleeve; 270-second via.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.