CN203628011U - Out-leakage-preventing self-sealing valve - Google Patents

Out-leakage-preventing self-sealing valve Download PDF

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Publication number
CN203628011U
CN203628011U CN201320837127.XU CN201320837127U CN203628011U CN 203628011 U CN203628011 U CN 203628011U CN 201320837127 U CN201320837127 U CN 201320837127U CN 203628011 U CN203628011 U CN 203628011U
Authority
CN
China
Prior art keywords
valve
valve rod
seal ring
ring
cover
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.)
Expired - Lifetime
Application number
CN201320837127.XU
Other languages
Chinese (zh)
Inventor
陈文恭
陈润福
彭建清
魏永端
郑开省
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huhang Technology Group Co ltd
Original Assignee
QUANZHOU HUHANG VALVE MANUFACTURING CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by QUANZHOU HUHANG VALVE MANUFACTURING CO LTD filed Critical QUANZHOU HUHANG VALVE MANUFACTURING CO LTD
Priority to CN201320837127.XU priority Critical patent/CN203628011U/en
Application granted granted Critical
Publication of CN203628011U publication Critical patent/CN203628011U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a fluid control valve and provides an out-leakage-preventing self-sealing valve which is good in sealing effect, and a sealing ring can be replaced under the situation that water is not cut off and pressure does not exist. The out-leakage-preventing self-sealing valve comprises a valve body, a valve cover, a pressing cover, a valve plate, a valve rod, a starting device, an inverted-cone-shaped sealing ring and a pressing ring. The valve cover is arranged above the valve body. The pressing cover is detachably arranged above the valve cover. The valve body is provided with a water inlet and a water outlet which are communicated with medium fluid. The valve plate can be arranged between the water inlet and the water outlet in an up-down-lifting mode. One end of the valve rod penetrates through the pressing cover and the valve cover and is in thread connection with the valve plate. The starting device is arranged at a free end of the valve rod. At least two upper sealing rings are arranged between the pressing cover and the valve rod. A limiting ring which limits axial motion of the valve rod is arranged between the upper end of the valve rod and the valve cover. The inverted-cone-shaped sealing ring is arranged on the lower portion of the valve cover between the valve cover and the valve rod. A gap without friction is formed between the inverted-cone-shaped sealing ring and the valve rod. The pressing ring is arranged on the upper portion of the valve plate on the outer side of the lower portion of the valve rod in a sleeved mode and can go up and down along with the valve plate which goes up and down.

Description

The anti-self sealing valve that leaks outside
Technical field
The utility model relates to a kind of fluid control valve, particularly a kind of anti-self sealing valve that leaks outside.
Background technique
The existing anti-self sealing valve that leaks outside, as gate valve, comprise valve body, valve gap, gland valve plate, valve rod and opening device, described valve gap is located at valve body top, described valve body vertically part offers the fluid passage that connects medium, described fluid passage has water intake and water outlet, described valve plate is located between the interior water intake of valve body fluid passage and water outlet, described gland is located at the top of valve gap, described valve rod one end is threaded with valve plate through gland and valve gap, described opening device is located on the free end of valve rod, between the upper end of described valve rod and valve gap 2 ', be provided with restriction valve rod limited ring in axial sliding, between described gland and valve rod, be provided with at least two seals ring that can prevent dielectric leakage, on two free ends of described valve body periphery water intake and water outlet, be also provided with the flange plate that is connected use with pipeline, when work, utilize the lifting of flashboard to carry out the keying of control valve, thereby realize switching on or off of pipeline medium.Above-mentioned gate valve arranges seal ring to prevent the dielectric leakage in pipeline between valve rod and gland, seal ring is vulnerable part, need often to change, otherwise there will be the phenomenon of dielectric leakage, the above-mentioned this seal form lower seal ring of changing in working order, be in conduit running, do not cut off the water supply and situation with pressure under cannot change, can only block after loine pressure, dismounting gland could be changed seal ring, disassembling, assembling and replacing is very inconvenient, replacing need to be out of service by pipeline, need to impact follow-up use, uses inconvenient.
Summary of the invention
For the problems referred to above, the utility model proposes a kind of good sealing effect, can be not cutting off the water supply, change the anti-self sealing valve that leaks outside of seal ring in situation with pressure.
For solving this technical problem, the utility model is taked following scheme: the anti-self sealing valve that leaks outside, comprise valve body, valve gap, gland, valve plate, valve rod and opening device, described valve gap is located at valve body top, the dismantled and assembled valve gap top of being located at of described gland, described valve body has the water intake and the water outlet that connect medium fluid, described valve plate can oscilaltion be located between water intake and water outlet, one end of described valve rod is threaded with valve plate through gland and valve gap, described opening device is located on the free end of valve rod, between described gland and valve rod, be provided with at least seal ring in twice, between the upper end of valve rod and valve gap, be provided with the limited ring that restriction valve rod axially moves, also comprise inverted cone seal ring and retainer ring, described inverted cone seal ring is located at bonnet lower between valve gap and valve rod, between inverted cone seal ring and valve rod, there is the gap of the friction of not producing, described retainer ring is sheathed on the top of described valve plate outside stem lower portion, and can the lifting with the oscilaltion of valve plate, the top of described retainer ring is provided with the chamfering matching with inverted cone sealing ring lower potion cone angle.
Further improved: between described gland and valve gap, to be provided with seal ring.
Further improved: described upper seal ring is 3.
Further improved: described opening device is handwheel or handle.
By adopting aforementioned techniques scheme, the beneficial effects of the utility model are: this novel anti-self sealing valve that leaks outside, between valve gap and valve rod, be provided with inverted cone seal ring in bonnet lower, between inverted cone seal ring and valve rod, there is the gap of the friction of not producing, outside stem lower portion, the top of described valve plate arranges retainer ring that can the lifting with the oscilaltion of valve plate, when valve in close or when half-open inverted cone seal ring do not contact valve gap and do not produce friction with valve rod synchronization motion, now only have upper seal ring to seal, in the time that upper sealing occurs that wearing and tearing are leaked, valve is all opened, valve plate rises and drives the retainer ring on it to compress inverted cone seal ring, make inverted cone seal ring produce deformation and contact the effect of playing sealing with valve stem seal, now, even if there are wearing and tearing in upper seal ring, valve is still in sealing state, and can the upper seal ring of wearing and tearing be safeguarded or be changed, thereby realize the object of the replace with pressure seal ring of not cutting off the water supply, without blocking loine pressure, pipeline is out of service, can directly dismantle gland and change seal ring, disassembling, assembling and replacing is very inconvenient, follow-up production is not impacted, easy to use.This is novel utilizes the lower taper angle of inverted cone seal ring and the upper bevel of press seal circle to match to realize the effect of automatic impaction, the compression snare of this structure can not exert an influence because of rocking of flashboard, when rising, compress snare meeting automatic impaction inverted cone seal ring, play self centering effect, compress effective.
Brief description of the drawings
Fig. 1 is the utility model example structure schematic diagram.
Embodiment
Now with specific embodiment, the utility model is further illustrated by reference to the accompanying drawings.
With reference to figure 1, the open a kind of anti-self sealing valve that leaks outside of the present embodiment, comprise valve body 1, valve gap 2, gland 3, valve plate 4, valve rod 5 and handwheel 6, described valve gap 2 is located at valve body 1 top, described gland 3 by bolt-locking in valve gap 2 tops, between described gland 3 and valve gap 2, be provided with seal ring 31, described valve body 1 has the water intake 11 and the water outlet that connect medium fluid, described valve plate 4 can oscilaltion be located between water intake 11 and water outlet 12, one end of described valve rod 5 is threaded with valve plate 4 through gland 3 and valve gap 2, described handwheel 6 is located on the free end of valve rod 5, between described gland 3 and valve rod 5 by lower from be interval with three upper seal rings 31, between the upper end of valve rod 5 and valve gap 2, be provided with the limited ring 7 that restriction valve rod 5 axially moves, also comprise inverted cone seal ring 8 and retainer ring 9, described inverted cone seal ring 8 is located at valve gap 2 bottoms between valve gap 2 and valve rod 5, between inverted cone seal ring 8 and valve rod 5, there is the gap of the friction of not producing, described retainer ring 9 is sheathed on the top of valve plate 4 described in valve rod 5 lower outsides, and can the lifting with the oscilaltion of valve plate 4, the top of described retainer ring 9 is provided with the chamfering matching with inverted cone seal ring 8 lower taper angles.
The anti-self sealing valve that leaks outside of this novel improved type, between valve gap and valve rod, be provided with inverted cone seal ring in bonnet lower, between inverted cone seal ring and valve rod, there is the gap of the friction of not producing, outside stem lower portion, the top of described valve plate arranges retainer ring that can the lifting with the oscilaltion of valve plate, when valve in close or when half-open inverted cone seal ring do not contact valve gap and do not produce friction with valve rod synchronization motion, now only have upper seal ring to seal, in the time that upper sealing occurs that wearing and tearing are leaked, valve is all opened, valve plate rises and drives the retainer ring on it to compress inverted cone seal ring, make inverted cone seal ring produce deformation and contact the effect of playing sealing with valve stem seal, now, even if there are wearing and tearing in upper seal ring, valve is still in sealing state, and can the upper seal ring of wearing and tearing be safeguarded or be changed, thereby realize the object of the replace with pressure seal ring of not cutting off the water supply, without blocking loine pressure, pipeline is out of service, can directly dismantle gland and change seal ring, disassembling, assembling and replacing is very inconvenient, follow-up production is not impacted, easy to use, this is novel utilizes the lower taper angle of inverted cone seal ring and the upper bevel of press seal circle to match to realize the effect of automatic impaction, the compression snare of this structure can not exert an influence because of rocking of flashboard, when rising, compress snare meeting automatic impaction inverted cone seal ring, play self centering effect, compress effective.
Based on aforementioned techniques scheme, described opening device can be also handle, can realize equally the purpose of this utility model.
Above record, only, for utilizing the embodiment of this origination techniques content, modification, variation that any those skilled in the art use this creation to do, all belong to the scope of the claims that this creation is advocated, and be not limited to those disclosed embodiments.

Claims (4)

1. the anti-self sealing valve that leaks outside, comprise valve body, valve gap, gland, valve plate, valve rod and opening device, described valve gap is located at valve body top, the dismantled and assembled valve gap top of being located at of described gland, described valve body has the water intake and the water outlet that connect medium fluid, described valve plate can oscilaltion be located between water intake and water outlet, one end of described valve rod is threaded with valve plate through gland and valve gap, described opening device is located on the free end of valve rod, between described gland and valve rod, be provided with at least seal ring in twice, between the upper end of valve rod and valve gap, be provided with the limited ring that restriction valve rod axially moves, it is characterized in that: also comprise inverted cone seal ring and retainer ring, described inverted cone seal ring is located at bonnet lower between valve gap and valve rod, between inverted cone seal ring and valve rod, there is the gap of the friction of not producing, described retainer ring is sheathed on the top of described valve plate outside stem lower portion, and can the lifting with the oscilaltion of valve plate, the top of described retainer ring is provided with the chamfering matching with inverted cone sealing ring lower potion cone angle.
2. the anti-self sealing valve that leaks outside according to claim 1, is characterized in that: between described gland and valve gap, be provided with seal ring.
3. the anti-self sealing valve that leaks outside according to claim 1 and 2, is characterized in that: described upper seal ring is 3.
4. the anti-self sealing valve that leaks outside according to claim 3, is characterized in that: described opening device is handwheel or handle.
CN201320837127.XU 2013-12-18 2013-12-18 Out-leakage-preventing self-sealing valve Expired - Lifetime CN203628011U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320837127.XU CN203628011U (en) 2013-12-18 2013-12-18 Out-leakage-preventing self-sealing valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320837127.XU CN203628011U (en) 2013-12-18 2013-12-18 Out-leakage-preventing self-sealing valve

Publications (1)

Publication Number Publication Date
CN203628011U true CN203628011U (en) 2014-06-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320837127.XU Expired - Lifetime CN203628011U (en) 2013-12-18 2013-12-18 Out-leakage-preventing self-sealing valve

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105318934A (en) * 2015-11-27 2016-02-10 上海立格仪表有限公司 Liquid level measurement instrument
CN111981194A (en) * 2020-08-28 2020-11-24 温州职业技术学院 Anti-leakage self-sealing valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105318934A (en) * 2015-11-27 2016-02-10 上海立格仪表有限公司 Liquid level measurement instrument
CN111981194A (en) * 2020-08-28 2020-11-24 温州职业技术学院 Anti-leakage self-sealing valve

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20220507

Address after: No.11, Meiyu Road, Meiyu valve garden, Luncang, Nan'an City, Quanzhou City, Fujian Province, 362300

Patentee after: HUHANG TECHNOLOGY GROUP Co.,Ltd.

Address before: 362300 Luncang Meiyu valve garden, Nan'an City, Quanzhou City, Fujian Province

Patentee before: QUANZHOU HUHANG VALVE MANUFACTURING Co.,Ltd.

TR01 Transfer of patent right
CX01 Expiry of patent term

Granted publication date: 20140604

CX01 Expiry of patent term