CN110513517A - A kind of safety valve preventing the spool prooving of valve seat - Google Patents
A kind of safety valve preventing the spool prooving of valve seat Download PDFInfo
- Publication number
- CN110513517A CN110513517A CN201910804985.6A CN201910804985A CN110513517A CN 110513517 A CN110513517 A CN 110513517A CN 201910804985 A CN201910804985 A CN 201910804985A CN 110513517 A CN110513517 A CN 110513517A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- valve
- spool
- flange
- valve seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/042—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with locking or disconnecting arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0426—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with seat protecting means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The present invention relates to valve arrangement technical fields, and disclose a kind of safety valve that can prevent the spool prooving of valve seat, including valve body, control valve pipe and safety guard, the top of valve body is fixedly connected with first flange, the bottom end of control valve pipe is fixedly connected with second flange, it is fixed by screws between first flange and second flange, the top of control valve pipe is fixedly connected with third flange, and the bottom of safety guard is fixedly connected with the 4th flange.This can prevent the safety valve of the spool prooving of valve seat, it is withstood during spool moves up and lift off a seat by inlet tube interior media pressure rise, limit plate moves up the top of buffering supporting plate with mobile tube body, at the end of pressure release, the elastic force of second spring moves down valve rod band movable valve plug, is buffered using buffer spring to moving down for limit plate, so that the impact strength of spool and valve seat substantially reduces, spool is not easy to be damaged with valve seat, to improve the service life of safety valve.
Description
Technical field
The present invention relates to valve arrangement technical field, specially a kind of safety valve that can prevent the spool prooving of valve seat.
Background technique
Safety valve is that opening and closing element is in normally off under by external force, is surpassed when the pressure medium in equipment or pipeline increases
When crossing specified value, by outside system discharge medium come to prevent pressure medium in pipeline or equipment be more than the particular usage valve of specified value
Door, safety valve belongs to automatic valve class, is mainly used for boiler, on pressure vessels and pipes, control pressure is no more than specified value, to people
Body safety and equipment have run important protective effect.
Due to existing safety valve by spring come control valve core and valve stem contacts so that arranged at safety valve is in normally off,
Spool movement is withstood by pipeline internal medium pressure rise, realization pressure release is separated with valve seat, however, in safety valve releasing pressure automatically knot
Shu Hou, since the elastic force of spring is larger, so that having certain collision, if things go on like this, spool in spool and valve seat contact process
It is prone to wear with the contact surface of valve seat, so that the service life of safety valve reduces, and the spring of safety valve is after a period of use,
Coefficient of elasticity can reduce, and need to replace it, and existing safety valve needs to block the two of pipeline when replacing spring
End, prevents pipeline medium from flowing out, then replaced, so that the spring replacement of safety valve is cumbersome.
Summary of the invention
The present invention provides the safety valves that one kind can prevent the spool prooving of valve seat, and having prevents pressure release from terminating back valve core and valve
The advantages of seat collision is impaired and is conveniently replaceable spring, solves existing safety valve and is connect by spring come control valve core and valve rod
Touching separates realization with valve seat and lets out so that arranged at safety valve withstands spool movement in normally off, by pipeline internal medium pressure rise
Pressure, however, after safety valve releasing pressure automatically, since the elastic force of spring is larger, so that in spool and valve seat contact process, meeting
There is certain collision, if things go on like this, the contact surface of spool and valve seat is prone to wear, so that the service life of safety valve reduces, and
After a period of use, coefficient of elasticity can reduce the spring of safety valve, need to replace it, and existing safety valve is more
It when changing spring, needs to block the both ends of pipeline, prevents pipeline medium from flowing out, then replaced, so that the spring of safety valve is replaced
Cumbersome problem.
The invention provides the following technical scheme: a kind of safety valve that can prevent the spool prooving of valve seat, including valve body, control valve
Pipe and safety guard, the top of the valve body are fixedly connected with first flange, and the bottom end of the control valve pipe is fixedly connected with second
Flange is fixed by screws between the first flange and second flange, and the top of the control valve pipe is fixedly connected with
Third flange, the bottom of the safety guard are fixedly connected with the 4th flange, pass through spiral shell between the third flange and the 4th flange
Silk is fixedly connected, and the internal activity of the control valve pipe is set with mobile tube body, and the side at the top of the mobile tube cavity is solid
Surely it is connected with fixed block, the other side of the mobile tubular body is movably installed with by movable plate, described to be fixed by the side of movable plate
It is connected with limit plate, and limit plate is far from the outside for being extended to mobile tube body by one end of movable plate, the other side by movable plate
It is fixedly connected with wirerope, one end of the wirerope runs through fixed block and extends to the outside on mobile tube body top, the quilt
The other side of movable plate is fixedly connected with the first spring, and first spring is separate to be fixed by one end of movable plate and the side of fixed block
Connection, the side of the control valve pipe are fixedly connected with separator tube, and the bottom of the buffering tube cavity is fixedly connected with buffering elastic
Spring, the top of the buffer spring are fixedly connected with sliding panel, and the two sides at the top of the sliding panel are fixedly connected to couple axle,
The top of two couple axles is fixedly connected with buffering supporting plate, is fixedly connected with gear at the top of the separator tube intracavity sidewall
Block, the other side of the control valve pipe are fixedly connected with position-limiting tube, and the flank threads of the position-limiting tube are socketed with adjusting screw rod, institute
The one end for stating adjusting screw rod is fixedly connected with runner outside position-limiting tube, and the other end of the adjusting screw rod is fixedly connected with
Linked block inside position-limiting tube, the external activity of the linked block are set with gearing pipe, and the side for interlocking pipe is fixed
It is connected with sealing plate, the side of the sealing plate is fixedly connected with restriction axis, and the axis that limits extends far from one end of sealing plate
To the inside of control valve pipe, the bottom of the mobile tube body is fixedly connected with stop block, and the middle part of the stop block bottom end is fixed
It is connected with valve rod, the bottom end of the valve rod extends to the inside of valve body and is fixedly connected with spool, the top of the mobile tube body
It is fixedly connected with pogo barrel, the top movable of the pogo barrel is set with second spring, and the top of the second spring is living
Dynamic to be set with pogo barrel, the side wall of the control valve tube cavity is fixedly connected with locating piece, and the side of the body base is set
Have an inlet tube, the other side of the body base is equipped with outlet, the inside of the valve body be fixedly installed with positioned at inlet tube and
Valve seat between outlet.
Preferably, the separate top by movable plate one end of the limit plate is inclined design, and limit plate is located at two gearings
Between axis.
Preferably, the wirerope and the first spring pivot bush unit, and wirerope and fixed block pivot bush unit, the steel wire
Rope is not contacted with pogo barrel.
Preferably, the side of the stop block opens up grooved hole, and the outer diameter of slot is greater than its internal diameter in stop block, described
One end pivot bush unit of slot and restriction axis in stop block.
Preferably, the spool is located at the surface of valve seat, and the diameter at the top of spool is greater than the diameter inside valve seat.
Preferably, the separator tube offers sliding slot compatible with limit plate with the junction of control valve pipe, and buffers
The inner wall of pipe and the outer pivot bush unit of buffering supporting plate.
Preferably, the block is located at the lower section of the junction sliding slot of separator tube and control valve pipe, and block is located at buffering
The top of supporting plate.
Preferably, one end pivot bush unit of the side for interlocking pipe and adjusting screw rod, and interlock the width value inside pipe
It is equal with the width value of linked block.
Preferably, the locating piece is located at the top of mobile tube body, and the side of locating piece and the side of second spring are not
Contact, the bottom of the locating piece is fixedly connected with one end of wirerope.
The present invention have it is following the utility model has the advantages that
1, this can prevent the safety valve of the spool prooving of valve seat, withstood by inlet tube interior media pressure rise and be moved away from spool
During valve seat, limit plate moves up the top of buffering supporting plate with mobile tube body, and at the end of pressure release, the elastic force of second spring makes
Valve rod band movable valve plug moves down, moving down for limit plate is buffered using buffer spring, so that spool and valve seat touch
It hits intensity to substantially reduce, spool is not easy to be damaged with valve seat, to improve the service life of safety valve.
2, this can prevent the safety valve of the spool prooving of valve seat, make sealing plate that restriction axis be driven to move by rotating adjusting screw rod
It is dynamic, it extends in the slot in stop block, stop block is limited using axis is limited, so that spool is protected always so that limiting axis
The contact with valve seat is held, when replacing spring, no longer needs to the both ends for carrying out sealing pipeline, bullet of the personnel easy to repair to safety valve
Spring is replaced.
3, this can prevent the safety valve of the spool prooving of valve seat, be acted on by the elastic force of the first spring, so that limit plate is always
The state moved to left, using the inclined design of limit plate, enables limit plate to be moved to buffering supporting plate when mobile tube body is moved up
Top, consequently facilitating buffered after pressure release using buffer spring, and in mobile tube body folding process, steel wire
Rope is held limit plate and is moved to right, and before spool contacts valve rod, limit plate is separated with buffering supporting plate, so that buffering supporting plate re-moves
The top of limit plate, so that it is guaranteed that buffer spring can play buffer function always.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the cut away view of structure of the invention control valve pipe；
Fig. 3 is the mobile tube body schematic diagram of structure of the invention Fig. 2；
Fig. 4 is the cut away view of structure of the invention position-limiting tube.
In figure: 1, valve body；101, inlet tube；102, outlet；103, valve seat；2, control valve pipe；21, mobile tube body；
211, fixed block；212, by movable plate；213, limit plate；214, wirerope；215, the first spring；22, stop block；23, valve rod；
24, spool；25, separator tube；251, buffer spring；252, sliding panel；253, couple axle；254, supporting plate is buffered；255, block；
26, position-limiting tube；261, adjusting screw rod；262, runner；263, linked block；264, pipe is interlocked；265, sealing plate；266, axis is limited；
27, pogo barrel；28, second spring；29, locating piece；3, safety guard；4, first flange；5, second flange；6, third flange；
7, the 4th flange.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-4, a kind of safety valve preventing the spool prooving of valve seat, including valve body 1, control valve pipe 2 and safety
Cover 3, the top of valve body 1 is fixedly connected with first flange 4, and the bottom end of control valve pipe 2 is fixedly connected with second flange 5, the first method
It is fixed by screws between orchid 4 and second flange 5, the top of control valve pipe 2 is fixedly connected with third flange 6, safety guard 3
Bottom be fixedly connected with the 4th flange 7, be fixed by screws between third flange 6 and the 4th flange 7, control valve pipe 2
Internal activity be set with mobile tube body 21, the side of mobile 21 inner cavity top of tube body is fixedly connected with fixed block 211, moving tube
The other side inside body 21 is movably installed with by movable plate 212, is fixedly connected with limit plate 213, limit plate by the side of movable plate 212
The 213 separate tops by 212 one end of movable plate are inclined design, and limit plate 213 is located between two couple axles 253, works as fluid
When the pressure of medium is larger, it is higher to withstand the height that spool 24 moves up, and during limit plate 213 moves up, utilizes limit plate 213
Inclined design so that limit plate 213 and buffering supporting plate 254 are when contacting, limit plate 213 is moved to right, it is ensured that limit plate 213 can move
The top of buffering supporting plate 254 is moved, thus using the support of buffering supporting plate 254, the elastic force effect of cooperation buffer spring 251, In
It after pressure release, when valve rod 23 is moved down with movable valve plug 24, is buffered, greatly reduces spool 24 and the collision of valve seat 103 is strong
Degree, protects valve rod 23 and valve seat 103 well, when pressure release intensity is lower, although limit plate 213 is mobile less than buffering supporting plate
254 top, but spool 24 is shorter at a distance from valve seat 103, after pressure release, spool 24 and the collision of valve seat 103 are strong
Less, spool 24 is not easily damaged with valve seat 103 for degree, and limit plate 213 is separate extends to mobile tube body 21 by one end of movable plate 212
Outside, wirerope 214 is fixedly connected with by the other side of movable plate 212,215 pivot bush unit of wirerope 214 and the first spring, and
Wirerope 214 and 211 pivot bush unit of fixed block, wirerope 214 are not contacted with pogo barrel 27, using wirerope 214, so that limit
It while position plate 213 moves down, moves right, before spool 24 is contacted with valve seat 103, limit plate 213 divides with buffering supporting plate 254
From, it is ensured that the elastic force of buffer spring 251 does not influence the effect of second spring 28, and limit plate 213 faces with what buffering supporting plate 254 separated
Boundary's point can carry out experiment and obtain result, it is ensured that when limit plate 213 is separated with buffering supporting plate 254, spool 24 does not connect with valve seat 103
One end of touching, wirerope 214 runs through fixed block 211 and extends to the outside on mobile 21 top of tube body, by the other side of movable plate 212
It is fixedly connected with the first spring 215, the first spring 215 is far from by the fixed company in the side of one end of movable plate 212 and fixed block 211
It connects, the side of control valve pipe 2 is fixedly connected with separator tube 25, and the junction of separator tube 25 and control valve pipe 2 offers and limits
The compatible sliding slot of plate 213, it is ensured that one end of limit plate 213 can be contacted with buffering supporting plate 254, to utilize buffering supporting plate
254 cooperation buffer springs 251 elastic force effect, buffering effect is played to moving down for limit plate 213, and the inner wall of separator tube 25 with
Buffer the outer pivot bush unit of supporting plate 254, it is ensured that buffering supporting plate 254 remains the state of balance, consequently facilitating to limit plate
Stable buffer function is played in 213 move down, and the bottom of 25 inner cavity of separator tube is fixedly connected with buffer spring 251, buffer spring
251 top is fixedly connected with sliding panel 252, and the two sides at 252 top of sliding panel are fixedly connected to couple axle 253, two companies
The top of moving axis 253 is fixedly connected with buffering supporting plate 254, is fixedly connected with block 255 at the top of 25 intracavity sidewall of separator tube, keeps off
Block 255 is located at the lower section of the junction sliding slot of separator tube 25 and control valve pipe 2, and block 255 is located at the upper of buffering supporting plate 254
Side, is limited using 255 pairs of buffering supporting plates 254 of block, so that buffering supporting plate 254 under normal conditions between limit plate 213
Vertical range is shorter, it is ensured that and limit plate 213 can be moved to the top of buffering supporting plate 254 when fluid medium pressure is larger, and
So that buffer spring 251 is in compressive state, the buffer intensity of buffer spring 251 is improved, the other side of control valve pipe 2 is fixed to be connected
It is connected to position-limiting tube 26, the flank threads of position-limiting tube 26 are socketed with adjusting screw rod 261, and one end of adjusting screw rod 261 is fixedly connected with
Runner 262 outside position-limiting tube 26, the other end of adjusting screw rod 261 are fixedly connected with the gearing inside position-limiting tube 26
Block 263, the external activity of linked block 263, which is set with, interlocks pipe 264, and one end of the side and adjusting screw rod 261 that interlock pipe 264 is living
Dynamic socket, and the width value interlocked inside pipe 264 is equal with the width value of linked block 263, it is ensured that when adjusting screw rod 261 rotates,
Sealing plate 265, which drives, limits the movement of axis 266, convenient for being limited using restriction axis 266 to stop block 22, so that spool 24 and valve
Seat 103 contacts, and is conveniently replaceable second spring 28, using sealing plate 265, so that the sealing effect inside control valve pipe 2 improves, even
The side of dynamic pipe 264 is fixedly connected with sealing plate 265, and the side of sealing plate 265, which is fixedly connected with, limits axis 266, limits axis 266
One end far from sealing plate 265 extends to the inside of control valve pipe 2, and the bottom of mobile tube body 21 is fixedly connected with stop block 22,
The side of stop block 22 opens up grooved hole, and the outer diameter of slot is greater than its internal diameter in stop block 22, the slot in stop block 22 with
One end pivot bush unit for limiting axis 266, by the rotation of adjusting screw rod 261, so that limiting the slot in axis 266 and stop block 22
Clamping, thus fixed spool 24, it is ensured that when replacement second spring 28, the fluid media (medium) inside inlet tube 101 be will not flow out, and is convenient for
Operator directly carries out replacement second spring 28, is fixedly connected with valve rod 23, the bottom of valve rod 23 in the middle part of 22 bottom end of stop block
End extends to the inside of valve body 1 and is fixedly connected with spool 24, and spool 24 is located at the surface of valve seat 103, and 24 top of spool
Diameter be greater than the diameter inside valve seat 103, it is ensured that spool 24 can block valve seat 103, and the top for moving tube body 21 is fixed
It is connected with pogo barrel 27, the top movable of pogo barrel 27 is set with second spring 28, the top movable set of second spring 28
Equipped with pogo barrel 27, the side wall of 2 inner cavity of control valve pipe is fixedly connected with locating piece 29, and locating piece 29 is located at mobile tube body 21
Top, and the side of locating piece 29 is not contacted with the side of second spring 28, the bottom of locating piece 29 and one end of wirerope 214
It is fixedly connected, utilizes being fixedly connected for locating piece 29 and wirerope 214, it is ensured that in mobile 21 folding process of tube body, limit plate 213
It can move right, limit plate 213 is separated with buffering supporting plate 254, the side of 1 bottom of valve body is equipped with inlet tube 101, valve
The other side of 1 bottom of body is equipped with outlet 102, the inside of valve body 1 be fixedly installed with positioned at inlet tube 101 and outlet 102 it
Between valve seat 103.
In use, withstanding spool 24 and being moved up with ovable valve stem 23, so that moving firstly, fluid media (medium) is entered by inlet tube 101
Dynamic tube body 21 drives the top that buffering supporting plate 254 is moved on on limit plate 213, and then, after pressure release, valve rod 23 is in the second bullet
It is moved down under the elastic force effect of spring 28, so that mobile tube body 21 drives limit plate 213 to move down, passes through the bullet of buffer spring 251
Power buffers limit plate 213, continues in folding process in limit plate 213, by wirerope 214, so that under limit plate 213
It moves to right during shifting, is separated to one end of limit plate 213 with buffering supporting plate 254, under the elastic force effect of buffer spring 251,
Buffering supporting plate 254 is moved to the top of limit plate 213, finally, rotating wheel 262 to adjust before replacing second spring 28
Screw rod 261 rotates, and drives the one end for limiting axis 266 to be moved to the inside of stop block 22, limits to spool 24, then separates the
Three flanges 6 and the 4th flange 7, replace second spring 28.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. one kind can prevent the safety valve of the spool prooving of valve seat, including valve body (1), control valve pipe (2) and safety guard (3), special
Sign is: the top of the valve body (1) is fixedly connected with first flange (4), and the bottom end of the control valve pipe (2) is fixedly connected with
Second flange (5) is fixed by screws between the first flange (4) and second flange (5), the control valve pipe (2)
Top be fixedly connected with third flange (6), the bottom of the safety guard (3) is fixedly connected with the 4th flange (7), the third
It is fixed by screws between flange (6) and the 4th flange (7), the internal activity of the control valve pipe (2) is set with movement
The side of tube body (21), mobile tube body (21) inner cavity top is fixedly connected with fixed block (211), the mobile tube body (21)
The internal other side is movably installed with by movable plate (212), and the side by movable plate (212) is fixedly connected with limit plate (213),
And limit plate (213) is far from being extended to the outsides of mobile tube body (21) by one end of movable plate (212), it is described by movable plate (212)
The other side is fixedly connected with wirerope (214), and one end of the wirerope (214) through fixed block (211) and extends to movement
The outside on tube body (21) top, the other side by movable plate (212) are fixedly connected with the first spring (215), first bullet
Spring (215) is separate to be fixedly connected by one end of movable plate (212) with the side of fixed block (211), the side of the control valve pipe (2)
It is fixedly connected with separator tube (25), the bottom of separator tube (25) inner cavity is fixedly connected with buffer spring (251), the buffering
The top of spring (251) is fixedly connected with sliding panel (252), and the two sides at the top of the sliding panel (252) are fixedly connected to company
Moving axis (253), the top of two couple axles (253) are fixedly connected with buffering supporting plate (254), separator tube (25) inner cavity
It is fixedly connected at the top of side wall block (255), the other side of the control valve pipe (2) is fixedly connected with position-limiting tube (26), institute
The flank threads for stating position-limiting tube (26) are socketed with adjusting screw rod (261), and one end of the adjusting screw rod (261) is fixedly connected with position
In the external runner (262) of position-limiting tube (26), the other end of the adjusting screw rod (261) is fixedly connected with positioned at position-limiting tube (26)
Internal linked block (263), the external activity of the linked block (263) are set with gearing pipe (264), and (264) are managed in the gearing
Side be fixedly connected with sealing plate (265), the side of the sealing plate (265) be fixedly connected with limit axis (266), the limit
Dead axle (266) extends to the inside of control valve pipe (2), the bottom of the mobile tube body (21) far from the one end of sealing plate (265)
It is fixedly connected with stop block (22), is fixedly connected with valve rod (23) in the middle part of stop block (22) bottom end, the valve rod (23)
Bottom end extend to the inside of valve body (1) and be fixedly connected with spool (24), be fixedly connected at the top of the mobile tube body (21)
Have pogo barrel (27), the top movable of the pogo barrel (27) is set with second spring (28), the second spring (28)
Top movable be set with pogo barrel (27), the side wall of control valve pipe (2) inner cavity is fixedly connected with locating piece (29), institute
The side for stating valve body (1) bottom is equipped with inlet tube (101), and the other side of valve body (1) bottom is equipped with outlet (102), institute
The inside for stating valve body (1) is fixedly installed with valve seat (103) between inlet tube (101) and outlet (102).
2. the safety valve that one kind according to claim 1 can prevent the spool prooving of valve seat, it is characterised in that: the limit plate
(213) far from being inclined design by the top of movable plate (212) one end, and limit plate (213) be located at two couple axles (253) it
Between.
3. the safety valve that one kind according to claim 1 can prevent the spool prooving of valve seat, it is characterised in that: the wirerope
(214) with the first spring (215) pivot bush unit, and wirerope (214) and fixed block (211) pivot bush unit, the wirerope
(214) it is not contacted with pogo barrel (27).
4. the safety valve that one kind according to claim 1 can prevent the spool prooving of valve seat, it is characterised in that: the stop block
(22) side opens up grooved hole, and the outer diameter of slot is greater than its internal diameter, the slot on the stop block (22) in stop block (22)
Hole and one end pivot bush unit for limiting axis (266).
5. the safety valve that one kind according to claim 1 can prevent the spool prooving of valve seat, it is characterised in that: the spool
(24) it is located at the surface of valve seat (103), and the diameter at the top of spool (24) is greater than valve seat (103) internal diameter.
6. the safety valve that one kind according to claim 1 can prevent the spool prooving of valve seat, it is characterised in that: the separator tube
(25) with the junction of control valve pipe (2) offer with limit plate (213) compatible sliding slot, and the inner wall of separator tube (25) with
Buffer the outer pivot bush unit of supporting plate (254).
7. the safety valve that one kind according to claim 1 can prevent the spool prooving of valve seat, it is characterised in that: the block
(255) it is located at the lower section of the junction sliding slot of separator tube (25) and control valve pipe (2), and block (255) is located at buffering supporting plate
(254) top.
8. the safety valve that one kind according to claim 1 can prevent the spool prooving of valve seat, it is characterised in that: the gearing pipe
(264) one end pivot bush unit of side and adjusting screw rod (261), and interlock pipe (264) internal width value and linked block
(263) width value is equal.
9. the safety valve that one kind according to claim 1 can prevent the spool prooving of valve seat, it is characterised in that: the locating piece
(29) it is located at the top of mobile tube body (21), and the side of locating piece (29) is not contacted with the side of second spring (28), it is described
The bottom of locating piece (29) is fixedly connected with one end of wirerope (214).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910804985.6A CN110513517B (en) | 2019-08-29 | 2019-08-29 | Safety valve capable of preventing valve core and valve seat from being abraded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910804985.6A CN110513517B (en) | 2019-08-29 | 2019-08-29 | Safety valve capable of preventing valve core and valve seat from being abraded |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110513517A true CN110513517A (en) | 2019-11-29 |
| CN110513517B CN110513517B (en) | 2021-01-26 |
Family
ID=68627792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910804985.6A Active CN110513517B (en) | 2019-08-29 | 2019-08-29 | Safety valve capable of preventing valve core and valve seat from being abraded |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110513517B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550586A (en) * | 2020-05-12 | 2020-08-18 | 成都海申科技有限公司 | Spring blasting relief valve can reset |
| CN112212041A (en) * | 2020-09-14 | 2021-01-12 | 廖代云 | Domestic gas self-closing valve with small force loss |
| CN112253766A (en) * | 2020-09-23 | 2021-01-22 | 刘兴华 | Rubber ball liquid discharge valve of horizontal washing tank |
| CN113404927A (en) * | 2021-06-25 | 2021-09-17 | 江苏盐阜电站阀门辅机制造有限公司 | Filtering type pressure reducing valve with buffer device |
| CN113738897A (en) * | 2021-09-06 | 2021-12-03 | 陆少华 | Anti-locking stop valve |
| CN114382896A (en) * | 2022-01-12 | 2022-04-22 | 合肥通用机械研究院有限公司 | Spring direct load type safety valve for low-temperature medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2613544A1 (en) * | 1975-04-02 | 1976-10-21 | Alto As | REDUCING VALVE FOR LIQUID OR GAS PRESSURE IN PIPES |
| CN2400604Y (en) * | 1999-12-28 | 2000-10-11 | 浙江科尔泵业股份有限公司 | Damped discharge valve for displacement pump |
| CN104373649A (en) * | 2014-11-14 | 2015-02-25 | 常州市鑫诺纺织有限公司 | Pressure-limiting valve |
| CN204942658U (en) * | 2015-09-17 | 2016-01-06 | 罗浮阀门集团有限公司 | The anticorrosion safety valve of spring |
| CN205504098U (en) * | 2016-04-24 | 2016-08-24 | 洪美玉 | Dual control self sealss check valve |
| CN205781117U (en) * | 2016-05-24 | 2016-12-07 | 浙江金龙自控设备有限公司 | Tiny Drag Slow Shut Check Valves |
| CN207406844U (en) * | 2017-11-18 | 2018-05-25 | 温州翰智信息技术有限公司 | A kind of check-valves of the operation is stable |
-
2019
- 2019-08-29 CN CN201910804985.6A patent/CN110513517B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2613544A1 (en) * | 1975-04-02 | 1976-10-21 | Alto As | REDUCING VALVE FOR LIQUID OR GAS PRESSURE IN PIPES |
| CN2400604Y (en) * | 1999-12-28 | 2000-10-11 | 浙江科尔泵业股份有限公司 | Damped discharge valve for displacement pump |
| CN104373649A (en) * | 2014-11-14 | 2015-02-25 | 常州市鑫诺纺织有限公司 | Pressure-limiting valve |
| CN204942658U (en) * | 2015-09-17 | 2016-01-06 | 罗浮阀门集团有限公司 | The anticorrosion safety valve of spring |
| CN205504098U (en) * | 2016-04-24 | 2016-08-24 | 洪美玉 | Dual control self sealss check valve |
| CN205781117U (en) * | 2016-05-24 | 2016-12-07 | 浙江金龙自控设备有限公司 | Tiny Drag Slow Shut Check Valves |
| CN207406844U (en) * | 2017-11-18 | 2018-05-25 | 温州翰智信息技术有限公司 | A kind of check-valves of the operation is stable |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550586A (en) * | 2020-05-12 | 2020-08-18 | 成都海申科技有限公司 | Spring blasting relief valve can reset |
| CN112212041A (en) * | 2020-09-14 | 2021-01-12 | 廖代云 | Domestic gas self-closing valve with small force loss |
| CN112253766A (en) * | 2020-09-23 | 2021-01-22 | 刘兴华 | Rubber ball liquid discharge valve of horizontal washing tank |
| CN112253766B (en) * | 2020-09-23 | 2022-11-08 | 铜陵市兴达阀门总厂 | Flat-washing tank rubber ball tapping valve |
| CN113404927A (en) * | 2021-06-25 | 2021-09-17 | 江苏盐阜电站阀门辅机制造有限公司 | Filtering type pressure reducing valve with buffer device |
| CN113738897A (en) * | 2021-09-06 | 2021-12-03 | 陆少华 | Anti-locking stop valve |
| CN113738897B (en) * | 2021-09-06 | 2023-11-24 | 天津市中核科技实业有限公司 | Anti-lock stop valve |
| CN114382896A (en) * | 2022-01-12 | 2022-04-22 | 合肥通用机械研究院有限公司 | Spring direct load type safety valve for low-temperature medium |
| CN114382896B (en) * | 2022-01-12 | 2023-10-27 | 合肥通用机械研究院有限公司 | Spring direct load type safety valve for low-temperature medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110513517B (en) | 2021-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110513517A (en) | A kind of safety valve preventing the spool prooving of valve seat | |
| CN208295209U (en) | A kind of check-valves that noise is small | |
| CN101440883A (en) | Middle and low pressure safety valve | |
| CN103388741B (en) | Ball float charge limiter for low-temperature liquid storage tank | |
| CN211715848U (en) | Safety valve capable of preventing valve core and valve seat from being abraded | |
| CN202852090U (en) | Integral valve capable of controlling and automatically cutting out flow | |
| CN113464659B (en) | High-parameter stop valve | |
| CN210800151U (en) | High-temperature-resistant one-way valve | |
| CN202302012U (en) | Spring shock absorption pre-resetting angle type hydraulic fast switching valve | |
| CN114086927A (en) | Adjustable novel erosion-resistant double-cage-sleeve oil nozzle and using method thereof | |
| CN107237383B (en) | Large-flow voltage stabilizer | |
| CN210240678U (en) | High-strength wear-resistant check valve | |
| CN203130650U (en) | Automatic flow control valve for load-change hydraulic system | |
| CN209385700U (en) | A kind of high-performance two-way hard seal spiral valve | |
| CN202252169U (en) | Angle type check valve with good sealing property and stable performance | |
| CN102954256A (en) | Angle check valve | |
| CN207584038U (en) | A kind of wear-resistant ceramic plunger angle valve | |
| CN112855974A (en) | Electromagnetic ball valve with positioning function | |
| CN217130416U (en) | Piston type micro-resistance slow-closing check valve | |
| CN207311407U (en) | A kind of piston type pneumatic control valve for rail vehicle | |
| CN201636128U (en) | Throttling buffer for hydraulic system | |
| CN112240418A (en) | Stable Y-shaped stop check valve | |
| CN101634349B (en) | Furniture damper | |
| CN106609873B (en) | Elastic hard sealing balanced valve core | |
| CN219139958U (en) | Gas self-closing valve lifting mechanism and gas self-closing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210106 Address after: 201508 floor 1, building 9, No. 188, Shanfeng Road, Shanyang Town, Jinshan District, Shanghai Applicant after: Shihuang (Shanghai) mechanical and electrical industry Co.,Ltd. Address before: 313306 No. 121, Xiaodou natural village, Banqiao Village, Meixi Town, Anji County, Huzhou City, Zhejiang Province Applicant before: Liu Zhouhao |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |