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1. WO2020108238 - SLIP-INCREASING STRUCTURE FOR PREVENTING SEIZURE OF LOWER-END PORTION OF VALVE STEM

Publication Number WO/2020/108238
Publication Date 04.06.2020
International Application No. PCT/CN2019/115524
International Filing Date 05.11.2019
IPC
F16K 1/22 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
1Lift 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
16with pivoted closure members
18with pivoted discs or flaps
22with axis of rotation crossing the valve member, e.g. butterfly valves
F16K 1/226 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
1Lift 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
16with pivoted closure members
18with pivoted discs or flaps
22with axis of rotation crossing the valve member, e.g. butterfly valves
226Shape or arrangement of the sealing
F16K 1/32 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
1Lift 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
32Details
F16K 1/36 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
1Lift 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
32Details
34Cutting-off parts
36Valve members
CPC
F16K 51/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
51Other details not peculiar to particular types of valves or cut-off apparatus
Applicants
  • 江南阀门有限公司 JIANGNAN VALVE CO., LTD. [CN]/[CN]
Inventors
  • 黄子龙 HUANG, Zilong
  • 张其清 ZHANG, Qiqing
  • 张耀平 ZHANG, Yaoping
  • 刘志刚 LIU, Zhigang
  • 黄作兴 HUANG, Zuoxing
Agents
  • 温州金瓯专利事务所(普通合伙) WENZHOU JINOU PATENT LAW OFFICE (GENERAL PARTNERSHIP)
Priority Data
201811452904.230.11.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) SLIP-INCREASING STRUCTURE FOR PREVENTING SEIZURE OF LOWER-END PORTION OF VALVE STEM
(FR) STRUCTURE D'AUGMENTATION DE GLISSEMENT POUR EMPÊCHER LE GRIPPAGE D'UNE PARTIE D'EXTRÉMITÉ INFÉRIEURE D'UNE TIGE DE SOUPAPE
(ZH) 阀杆下端部防卡死的增滑结构
Abstract
(EN)
A slip-increasing structure for preventing seizure of a lower-end portion of a valve stem (1), comprising a valve stem (1) passing through a valve body (2). A flange cover (5) is provided on a bottom portion of the valve body (2). The exterior of the valve stem (1) is connected to the valve body (2) by means of a bearing (3). A thrust washer (8) and a split collar (4) are sequentially provided on the end of the valve stem (1), and anti-seizing slip-increasing washers (6) are respectively provided above and below the thrust washer (8). The top side anti-seizing slip-increasing washer (6) is provided between the thrust washer (8) and the valve stem (1), and the bottom side anti-seizing slip-increasing washer (6) is provided between the thrust washer (8) and the split collar (4). The anti-seizing slip-increasing washers (6) are capable of effectively preventing a stationary face of the thrust washer (8) and the split collar (4) from scraping and locking under pressure.
(FR)
L'invention concerne une structure d'augmentation de glissement destinée à empêcher le grippage d'une partie d'extrémité inférieure d'une tige de soupape (1), comprenant une tige de soupape (1) passant à travers un corps de soupape (2). Un couvercle de bride (5) est disposé sur une partie inférieure du corps de soupape (2). L'extérieur de la tige de soupape (1) est relié au corps de soupape (2) au moyen d'un palier (3). Une rondelle de butée (8) et un collier fendu (4) sont disposés séquentiellement sur l'extrémité de la tige de soupape (1), et des rondelles d'augmentation de glissement anti-grippage (6) sont respectivement disposées au-dessus et au-dessous de la rondelle de butée (8). La rondelle d'augmentation de glissement anti-grippage côté supérieur (6) est disposée entre la rondelle de butée (8) et la tige de soupape (1), et la rondelle d'augmentation de glissement anti-grippage côté inférieur (6) est disposée entre la rondelle de butée (8) et le collier fendu (4). Les rondelles d'augmentation de glissement anti-grippage (6) sont en mesure d'empêcher efficacement une face fixe de la rondelle de butée (8) et du collier fendu (4) de racler et de se bloquer sous pression.
(ZH)
一种阀杆(1)下端部防卡死的增滑结构,其包括穿设在阀体(2)内的阀杆(1),所述阀体(2)底部设有法兰盖(5),所述阀杆(1)外通过轴承(3)与阀体(2)连接,所述阀杆(1)末端依次设置止推垫(8)和对开环(4),并在止推垫(8)上下两侧分别设置防卡增滑垫(6),上侧的防卡增滑垫(6)设置在止推垫(8)与阀杆(1)之间,下侧的防卡增滑垫(6)设置在止推垫(8)与对开环(4)之间,防卡增滑垫(6)能有效防止止推垫(8)的静止面与对开环(4)受挤压而擦伤、咬死。
Also published as
Latest bibliographic data on file with the International Bureau