CN105697793A - Disassembling method of valve core of valve - Google Patents
Disassembling method of valve core of valve Download PDFInfo
- Publication number
- CN105697793A CN105697793A CN201610288207.2A CN201610288207A CN105697793A CN 105697793 A CN105697793 A CN 105697793A CN 201610288207 A CN201610288207 A CN 201610288207A CN 105697793 A CN105697793 A CN 105697793A
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- Prior art keywords
- valve
- screw rod
- pulling part
- plug
- rod
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 claims abstract description 5
- 230000003068 static effect Effects 0.000 claims abstract description 4
- 230000008676 import Effects 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
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- 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
- F16K1/02—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 with screw-spindle
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- 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
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
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- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention relates to a valve and a disassembling method of a valve core of a valve. The disassembling method comprises the following steps: a, a rotary hand wheel closes the valve, a screw rod moves downwardly to enable a pulling part to be at the lowest part, and a wrench notch extends from an inlet and is matched with the pulling part; b, the hand wheel is mounted in a rotating tool of which an arm of force is increased, a wrench is held to control the pulling part not to rotate, the hand wheel is continuously rotated reversely, and the screw rod is in a static state and does not rotate to enable a valve rod to be screwed out of the screw rod; c, the wrench is adopted to rotate the pulling part to promote the screw rod to move upwardly and form a space for plug disassembly between the plug and a valve port, and the plug is pulled down by using the wrench and is taken out from the inlet; d, finally, the wrench is adopted to rotate the pulling part in the opposite direction in the step c so as to promote the screw rod to move downwardly till the lower end of the screw rod extends into the valve port and is separated from a water through plate, and the valve core is removed. The valve is low in cost and good in sealing and leakage prevention effects; when the valve is in use, the valve core is very convenient to replace.
Description
The application is to be on November 27th, 2014 for the applying date, and application number is 201410706957.8, and invention and created name is the divisional application that " method for dismounting of a kind of valve and its spool " application for a patent for invention case proposes。
Technical field
The invention belongs to mechanical fitting field of components, especially relate to a kind of valve and the method for dismounting of this valve core。
Background technology
Existing a kind of valve, as shown in Figure 1, its structure includes valve body 10, handwheel 50, valve rod 30 and spool 20, valve body 10 is provided with inlet and outlet, handwheel 50 is in outside valve body, spool 20 is in valve body, valve body 10 top is a valve gap 40, valve gap 40 is fixedly installed on the spool mouth of valve body 10 by screw, valve opening in the middle part of valve gap 40, valve opening inwall is provided with screw thread, valve rod 30 is provided with and the external screw thread of valve opening screw-internal thread fit, the upper end of valve rod 30 is fixing with handwheel 50 to be connected, threaded with valve opening in the middle part of valve gap 40 in the middle part of valve rod 30, adjustment by handwheel 50, realize moving up and down of spool 20。Valve gap 40 is fixed by screws on the spool mouth of valve body 10 by above-mentioned valve, and not by its integrally casting, and advantage is in that dismounting and to change spool more convenient。
Although above-mentioned valve simple in construction, cost is low, but in use, we have found that this kind of valve also has many deficiencies, it is mainly manifested in following 2 points: 1. the valve gap 40 of this valve and valve body 10 connect when being connected by split, hand over the low pig iron according to cost, not only easily get rusty in junction and leak, and intensity is low。2. in the middle part of the valve rod 30 of this valve and with in the middle part of valve gap 40 valve opening adopt threaded, this is threaded in order that promote handwheel to drive it up and down with valve opening, therefore it is a mobilizable loose fit, and this cooperation also to realize sealing, it not only requires very high in precision, and in use for some time, as easy as rolling off a log abrasion and leak。Additionally, this fit system, when leakage easily occurs in hydraulic pressure one higher position, it is difficult to meet high hydraulic pressure environment and use。
Summary of the invention
For the deficiency that above-mentioned this kind of valve exists, the technical problem to be solved is in that to provide a kind of cost low, and sealing and anti-leakage is effective and is conveniently replaceable the valve of spool。
On the basis of this valve, another technical problem to be solved of the present invention is in that to provide the method for dismounting of spool in a kind of valve。
For this, the present invention by the following technical solutions:
A kind of spool method for dismounting of above-mentioned valve, described valve includes valve body, handwheel, valve rod and spool, is provided with cavity in valve body, valve body is provided with the inlet and outlet connected with described cavity, handwheel is in outside valve body, and spool is in valve body, and handwheel connects spool by valve rod；Described body top is the valve gap roof being connected as a single entity with valve body body, and described valve gap roof is provided with the through hole for wearing valve rod；Sealing ring it is provided with in through hole；Cavity in described valve body is divided into the cavity of resorption that the epicoele being connected with import and outlet connect, and the valve interior wall bottom epicoele and between cavity of resorption is provided with the valve port that can be connected；Described spool includes screw rod and for blocking the plug of valve port；Described valve rod is polished rod, and stem lower portion is through described through hole and stretches into epicoele；Being provided with screwed hole inside screw rod upper end, valve rod bottom is provided with the external screw thread coordinated with described screwed hole, forms the first threaded engagement and be connected between valve rod bottom with screw rod upper end；The water board of internal thread hole it is provided with inside described epicoele；Form the second threaded engagement between described screw rod with described internal thread hole to be connected；It is can order about screw rod with the up and down loose fit of water board that described second threaded engagement connects, and it is the tight fixing connection connected in the second threaded engagement that the first threaded engagement connects；It is polygonal pulling part that described screw rod bottom is provided with cross section, when closing valve closing, and the corresponding described import in described pulling part position；Screw rod below described pulling part is detachably connected with plug, and described plug is corresponding with valve port and coupling。Described method for dismounting employing one is with the spanner of the recess mated with described pulling part；It comprises the steps:
A. valve cuts out by rotation hand wheel, and screw rod activity downwards makes pulling part be in bottom, and described spanner recess stretches into from import and coordinates with pulling part；
B. being loaded in the turning tool strengthening the arm of force by handwheel, hold spanner control pulling part and do not rotate, continue to reversely rotate handwheel, screw rod is static not to be rotated so that valve rod screws out screw rod；
C. adopt spanner to rotate pulling part again, promote described screw rod upwards movable so that there is between plug and valve port the spacing of dismounting plug, then dial lower end cap with spanner and take out from import department；
D. finally adopt spanner to rotate pulling part with opposite direction in step c, promote described screw rod movable downwards, until screw rod lower end is stretched into valve port and departs from water board, split out spool。
Scheme as a further improvement on the present invention, in described valve, through-hole wall is provided with two cannelures being arranged above and below, and described sealing ring quantity is two, is respectively received in two described cannelures。
As present invention further optimization scheme, in described valve, described plug is the cone structure that top is big, bottom is little, and the end face of plug is provided with projection, and the lower surface of described screw rod is provided with mounting groove, and described projection is embedded in into fixing in described mounting groove。
Further, in described valve, described projection is fastener, and described mounting groove is draw-in groove, and plug is by the draw-in groove clamping of fastener with the lower end of screw rod。
Use invention can reach following beneficial effect: the valve of the present invention still cost is low, adopts the valve of this structure, and its body top is the valve gap roof being connected as a single entity with valve body body, and valve gap roof is provided with the through hole for wearing valve body。Sealing ring it is provided with in through hole；And valve rod is polished rod, stem lower portion is through through hole, and polished rod and sealing ring closely cooperate, and has not only facilitated and has rotated but also sealing effectiveness is relatively good。And drive especially by handwheel and with axially moving up and down thus what promote to be formed between plug and valve port conducting and Guan Bi is the screw rod of a connection valve rod, screw rod is completely in intracavity。So, the internal thread hole between screw rod and water board can adopt the matching relationship of extremely pine, decreases the rotation strength of handwheel, facilitates the operation of valve。Therefore this valve can also be suitable for the environment of elevated pressures and the flexible operation of this valve, does not rotate for a long time and is not easy to become dead valve。
Accompanying drawing explanation
Fig. 1: the cross-sectional view of prior art。
Fig. 2: the cross-sectional view of the embodiment of the present invention。
The fit structure schematic diagram of Fig. 3: when the present invention dismantles spool, spanner and pulling part。
Fig. 4: when the present invention dismantles spool, the structural representation that spool decomposes。
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail。
Embodiment: a kind of valve as shown in figs. 2 to 4, including valve body 1, handwheel 3, valve rod 20 and spool, is provided with cavity in valve body 1, valve body 1 is provided with the import 10 connected with described cavity and outlet 11, handwheel 3 is in outside valve body 1, and spool is in valve body 1, and handwheel 3 connects spool by valve rod 20。Specifically:
Cavity in above-mentioned valve body 1 is divided into the cavity of resorption 1d that the epicoele 1c being connected with import 10 and outlet connect, and the valve interior wall bottom epicoele 1c and between cavity of resorption 1d is provided with the valve port 1e that can be connected, and blocks valve port 1e and valve Guan Bi。Valve body 1 top is the valve gap roof being connected as a single entity with valve body 1 body, and valve gap roof is provided with the through hole 10a for wearing valve rod 20；Through hole 10a inwall is provided with two cannelures being arranged above and below, and is equipped with a sealing ring 4 in each cannelure, and namely sealing ring 4 is two be arranged above and below, and is respectively received in two described cannelures。Valve rod 20 is polished rod, and epicoele 1c is stretched into through through hole 10a in its underpart, is in the valve rod 20 crush seal circle 4 in through hole 10a and realizes sealing。
Being provided with water board 1b inside above-mentioned epicoele 1c, this water board 1b week side is fixedly connected on epicoele 1c inwall, and internal thread hole in the middle part of water board 1b is provided with some outlet passes around middle part。Corresponding position, internal thread hole position is in the surface of valve port 1e。Above-mentioned spool includes screw rod 21 and for blocking the plug 22 of valve port 1e, and screw rod 21 lower end is connected with plug 22, and therefore plug 22 is corresponding with valve port 1e, and plug 22 is in the cone structure that top is big, bottom is little, bottom and valve port 1e form fit。
Above-mentioned screw rod 21 is threadeded with internal thread hole, specifically with movable loose fit, being provided with screwed hole inside screw rod 21 upper end, valve rod 20 bottom is provided with the external screw thread coordinated with described screwed hole, forms the first threaded engagement and be connected between valve rod 20 bottom with screw rod 21 upper end；The water board 1b of internal thread hole it is provided with inside epicoele 1c；Form the second threaded engagement between described screw rod 21 and described internal thread hole to be connected。
It is can order about screw rod 21 with loose fit up and down for water board 1b that second threaded engagement connects, and it is the tight fixing connection connected in the second threaded engagement that the first threaded engagement connects。
It is polygonal pulling part 211 that screw rod 21 bottom is provided with cross section, when closing valve closing, and the corresponding described import 10 in described pulling part 211 position；Screw rod 21 below pulling part 211 is detachably connected with plug 22, and described plug 22 is corresponding with valve port 1e and coupling。
Above-mentioned plug 22 is in the cone structure that top is big, bottom is little, and the end face of plug 22 is provided with projection, and the lower surface of described screw rod 21 is provided with mounting groove, and described projection is embedded in into fixing in described mounting groove。Projection is fastener, and mounting groove is draw-in groove, and plug 22 is by the draw-in groove clamping of fastener with the lower end of screw rod 21。
Why the present invention adopts above-mentioned valve body 1 top to be the valve gap roof being connected as a single entity with valve body 1 body, reason is to allow valve body have globality, bring comprcssive strength better, and not easily leak because seam crossing gets rusty, so that manufacturer can adopt the cast iron materials that cost is low to make valve body, with the effect reducing cost。
And after adopting the valve body 1 of above-mentioned integral structure, in order to change spool, the present invention can dismantle spool in the following way。Specifically:
Spool method for dismounting in above-mentioned valve arrangement, it is necessary to use a comparatively conventional extracting tool, this instrument is one with the spanner 5 of the recess mated with described pulling part 211；Its method for dismounting comprises the steps:
1. valve cuts out by rotation hand wheel 3, and the downward activity of screw rod 21 makes pulling part 211 be in bottom, and described spanner 5 recess stretches into from import 10 and coordinates with pulling part 211；
2. being loaded by handwheel 3 in the turning tool strengthening the arm of force, hold spanner 5 and control pulling part and do not rotate, continue to reversely rotate handwheel 3, screw rod 21 is static not to be rotated so that valve rod 20 screws out screw rod 21；
3. adopt spanner 5 rotate pulling part 211, promote described screw rod 21 upwards movable so that have between plug 22 and valve port 1e dismounting plug 22 spacing, then with 5 groups of lower end caps 22 of spanner and from import 10 taking-up；
4. last employing spanner 5 rotates pulling part 211 with opposite direction in step c, promotes described screw rod 21 movable downwards, until screw rod 21 lower end is stretched into valve port 1e and departs from water board 1b, splits out spool。
This spool method for dismounting is more ingenious, make use of import 10 as dismounting mouth, recycling spanner 5 fly 3 rotate, just splitting out spool smoothly through above-mentioned steps, it is arbitrarily devised that the size of certainly above-mentioned import 10, screw rod 21, valve port 1e size and plug 22 is based on that those skilled in the art can implement on the basis of said method。Adopt above-mentioned spool method for dismounting, be prevented effectively from design of easily leaking of the prior art, replacing spool advantage eaily can be retained again simultaneously。And this method for dismounting is more hidden, it is suitable for professional person's dismounting, it is simple to manufacturer prevents user from arbitrarily dismantling so that the subsequent maintenance of valve is attributed to manufacturer's care and maintenance, and has uniformity。
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described。Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the claimed scope of the invention。Claimed scope is defined by appending claims and equivalent thereof。
Claims (4)
1. the spool method for dismounting of a valve, described valve includes valve body (1), handwheel (3), valve rod (20) and spool, valve body is provided with cavity in (1), valve body (1) is provided with the import (10) connected with described cavity and outlet (11), handwheel (3) is in valve body (1) outward, spool is in valve body (1), and handwheel (3) connects spool by valve rod (20)；
Described valve body (1) top is the valve gap roof being connected as a single entity with valve body (1) body, and described valve gap roof is provided with the through hole (10a) for wearing valve rod (20)；Sealing ring (4) it is provided with in through hole (10a)；Cavity in described valve body (1) is divided into the cavity of resorption (1d) that the epicoele (1c) being connected with import (10) and outlet connect, and valve body (1) inwall between epicoele (1c) bottom and cavity of resorption (1d) is provided with the valve port (1e) that can be connected；
Described spool includes screw rod (21) and is used for blocking the plug (22) of valve port (1e)；
Described valve rod (20) is polished rod, and valve rod (20) bottom is through described through hole (10a) and stretches into epicoele (1c)；
It is provided with screwed hole inside screw rod (21) upper end, valve rod (20) bottom is provided with the external screw thread coordinated with described screwed hole, forms the first threaded engagement and be connected between valve rod (20) bottom with screw rod (21) upper end；
Described epicoele (1c) inner side is provided with the water board (1b) of internal thread hole；Form the second threaded engagement between described screw rod (21) and described internal thread hole to be connected；
It is can order about screw rod (21) with the up and down loose fit of water board (1b) that described second threaded engagement connects, and it is the tight fixing connection connected in the second threaded engagement that the first threaded engagement connects；
It is polygonal pulling part (211) that described screw rod (21) bottom is provided with cross section, when closing valve closing, and the corresponding described import (10) in described pulling part (211) position；The screw rod (21) of described pulling part (211) lower section is detachably connected with plug (22), and described plug (22) is corresponding with valve port (1e) and coupling；It is characterized in that: described method for dismounting employing one is with the spanner (5) of the recess mated with described pulling part (211)；It comprises the steps:
A. valve cuts out by rotation hand wheel (3), screw rod (21) activity downwards makes pulling part (211) be in bottom, and described spanner (5) recess stretches into from import (10) and coordinates with pulling part (211)；
B. handwheel (3) is loaded in the turning tool strengthening the arm of force, hold spanner (5) control pulling part not rotate, continuing to reversely rotate handwheel (3), screw rod (21) is static not to be rotated so that valve rod (20) screws out screw rod (21)；
C. spanner (5) is being adopted to rotate pulling part (211), promote described screw rod (21) upwards movable, make the spacing between plug (22) and valve port (1e) with dismounting plug (22), then dial lower end cap (22) with spanner (5) and take out from import (10)；
D. spanner (5) is finally adopted to rotate pulling part (211) with opposite direction in step c, promote described screw rod (21) movable downwards, until screw rod (21) lower end is stretched into valve port (1e) and departs from water board (1b), i.e. removably spool。
2. the spool method for dismounting of a kind of valve according to claim 1, it is characterized in that: in described valve, through hole (10a) inwall is provided with two cannelures being arranged above and below, and described sealing ring (4) quantity is two, is respectively received in two described cannelures。
3. the spool method for dismounting of a kind of valve according to claim 1, it is characterized in that: in described valve, the cone structure that described plug (22) is big in top, bottom is little, the end face of plug (22) is provided with projection, the lower surface of described screw rod (21) is provided with mounting groove, and described projection is embedded in into fixing in described mounting groove。
4. the spool method for dismounting of a kind of valve according to claim 3, it is characterised in that: in described valve, described projection is fastener, and described mounting groove is draw-in groove, and plug (22) is by the draw-in groove clamping of fastener Yu the lower end of screw rod (21)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610288207.2A CN105697793B (en) | 2014-11-27 | 2014-11-27 | A kind of spool method for dismounting of valve |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610288207.2A CN105697793B (en) | 2014-11-27 | 2014-11-27 | A kind of spool method for dismounting of valve |
| CN201410706957.8A CN104405894B (en) | 2014-11-27 | 2014-11-27 | A kind of valve |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410706957.8A Division CN104405894B (en) | 2014-11-27 | 2014-11-27 | A kind of valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105697793A true CN105697793A (en) | 2016-06-22 |
| CN105697793B CN105697793B (en) | 2018-06-26 |
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ID=56216614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610288207.2A Active CN105697793B (en) | 2014-11-27 | 2014-11-27 | A kind of spool method for dismounting of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105697793B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112673204A (en) * | 2018-09-27 | 2021-04-16 | 株式会社富士金 | Valve, method for replacing valve element unit of valve, and method for assembling valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4384705A (en) * | 1980-10-13 | 1983-05-24 | Sekisui Kagaku Kogyo Kabushiki Kaisha | Stop valve |
| CN2469258Y (en) * | 2001-02-27 | 2002-01-02 | 吴怀之 | Shut-off valve with changeable valve seat |
| CN201190834Y (en) * | 2008-02-28 | 2009-02-04 | 勾松波 | Valve of transformer for preventing oil from being stolen |
| KR20100036534A (en) * | 2008-09-30 | 2010-04-08 | 퓨쳐이엔지 주식회사 | Check valve installed between branched pipe and main pipe |
| CN101927475A (en) * | 2010-09-19 | 2010-12-29 | 卓旦春 | Device for replacing valve core |
| CN201944408U (en) * | 2011-01-29 | 2011-08-24 | 山东益都阀门集团股份有限公司 | Special stop valve for chlorine gas |
| CN102588617A (en) * | 2011-01-07 | 2012-07-18 | 梁敬喜 | Stop valve |
| CN203442177U (en) * | 2013-09-04 | 2014-02-19 | 成都一帆塑胶有限公司 | Stop valve with detachable valve clack |
-
2014
- 2014-11-27 CN CN201610288207.2A patent/CN105697793B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4384705A (en) * | 1980-10-13 | 1983-05-24 | Sekisui Kagaku Kogyo Kabushiki Kaisha | Stop valve |
| CN2469258Y (en) * | 2001-02-27 | 2002-01-02 | 吴怀之 | Shut-off valve with changeable valve seat |
| CN201190834Y (en) * | 2008-02-28 | 2009-02-04 | 勾松波 | Valve of transformer for preventing oil from being stolen |
| KR20100036534A (en) * | 2008-09-30 | 2010-04-08 | 퓨쳐이엔지 주식회사 | Check valve installed between branched pipe and main pipe |
| CN101927475A (en) * | 2010-09-19 | 2010-12-29 | 卓旦春 | Device for replacing valve core |
| CN102588617A (en) * | 2011-01-07 | 2012-07-18 | 梁敬喜 | Stop valve |
| CN201944408U (en) * | 2011-01-29 | 2011-08-24 | 山东益都阀门集团股份有限公司 | Special stop valve for chlorine gas |
| CN203442177U (en) * | 2013-09-04 | 2014-02-19 | 成都一帆塑胶有限公司 | Stop valve with detachable valve clack |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112673204A (en) * | 2018-09-27 | 2021-04-16 | 株式会社富士金 | Valve, method for replacing valve element unit of valve, and method for assembling valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105697793B (en) | 2018-06-26 |
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Effective date of registration: 20230419 Address after: 529000 2nd floor, building 1, No.15 Nange West Road, Hetang Town, Pengjiang district, Jiangmen City, Guangdong Province Patentee after: Jiangmen KUKA plastic products Co.,Ltd. Address before: Room 202-2, building B, North Industrial Park, Binhai Economic Development Zone, Yancheng City, Jiangsu Province Patentee before: Yancheng Binbo Machinery Technology Co.,Ltd. |
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Denomination of invention: A method for disassembling the valve core of a valve Effective date of registration: 20231124 Granted publication date: 20180626 Pledgee: Agricultural Bank of China Limited jiangmencheng sub branch Pledgor: Jiangmen KUKA plastic products Co.,Ltd. Registration number: Y2023980067458 |