CN201739624U - Sealing mechanism on ball valve stem - Google Patents

Sealing mechanism on ball valve stem Download PDF

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Publication number
CN201739624U
CN201739624U CN2010202493458U CN201020249345U CN201739624U CN 201739624 U CN201739624 U CN 201739624U CN 2010202493458 U CN2010202493458 U CN 2010202493458U CN 201020249345 U CN201020249345 U CN 201020249345U CN 201739624 U CN201739624 U CN 201739624U
Authority
CN
China
Prior art keywords
sealing mechanism
ball valve
valve stem
valve rod
groove
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 - Fee Related
Application number
CN2010202493458U
Other languages
Chinese (zh)
Inventor
矫永臣
曲树蓁
张敏慧
刘鑫
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.)
Penglai Shuicheng Cast Basalt Pipe & Valve Co., Ltd.
Original Assignee
曲树蓁
矫永臣
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 曲树蓁, 矫永臣 filed Critical 曲树蓁
Priority to CN2010202493458U priority Critical patent/CN201739624U/en
Application granted granted Critical
Publication of CN201739624U publication Critical patent/CN201739624U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a sealing mechanism on a ball valve stem, belonging to the sealing mechanism technological field. The sealing mechanism on the ball valve stem is an X-shaped sealing ring (7), which is provided at the upper part with an up recess (8), at the lower part with a down recess (9), at the left side with a left recess (10) and at the right side with a right recess (11). The sealing mechanism on the ball valve stem of the utility model has the advantages of reasonable structure design, time-saving labor-saving opening and closing operation, convenient operation, good sealing performance and long service lifetime.

Description

Sealing mechanism on the ball valve valve rod
Technical field
The utility model relates to sealing mechanism on a kind of ball valve valve rod, belongs to the sealing mechanism technical field.
Background technique
At present, knownly be used on the ball valve sealing and mostly be the O RunddichtringO, put into the O RunddichtringO in the circular groove of both on axle, having processed, then it is fitted on the cover parts in the machining hole, form the sealing in axle and hole, magnitude of interference when the sealability of this structure depends on design, the i.e. machining accuracy of the decrement of O RunddichtringO and hole, axle part.Magnitude of interference is too little, poor sealing performance, and magnitude of interference is big, squeezes bad O RunddichtringO during assembling easily, makes seal failure.The assembling simple in structure of this sealing configuration is easy.But if the machining accuracy in axle, hole is not high or when being difficult to improve machining accuracy, remove that basic sealability is difficult to guarantee or when being difficult to further improve precision, its main shortcoming is sealing material, this sealing configuration is still very suitable in gas, fluid cylinder, uses to seal on the cast stone ball valve in grey pulp water just to be difficult to guarantee its sealability.Reason is that the switch of ball valve belongs to the part rotary type, often needs 90 ° of switches.Its deficiency since between valve rod and the valve body for certain interval is arranged movingly, valve medium when switch acts on the huge thrust of spheroid, must make valve rod produce certain inclination, the power of valve rod lays particular stress on one side, beyond is with regard to serious wear, and contains a large amount of suspended matter erosions in the grey pulp water and seal ring.Cause that O RunddichtringO Life cycle short easy leakage phenomenon in valve rod position often takes place, site environment is also caused certain influence, waste a large amount of human and material resources.Simultaneously also cause pipeline normally to move.
Summary of the invention
The purpose of this utility model is to solve the deficiency that above-mentioned prior art exists, a kind of reasonable in design is provided, make in the assembling that is sealed in axle, hole on the ball valve valve rod, can adjust by decrement, the machining accuracy that need not significantly improve axle, hole just can guarantee sealing mechanism on the ball valve valve rod of effective seal.
The utility model is achieved through the following technical solutions:
Sealing mechanism on the ball valve valve rod, special way be to be the seal ring 7 that is the X type, and the top of X RunddichtringO 7 is provided with upper groove 8, and the below is provided with low groove 9, and the left side is provided with left groove 10, and the right side is provided with right groove 11.
Sealing mechanism on the utility model ball valve valve rod, reasonable in design, have open and close time saving and energy saving, easy to operate, the advantage of good seal performance and long service life.
Description of drawings
Fig. 1: the structural representation of sealing mechanism on the utility model ball valve valve rod;
Fig. 2: the structure sectional view of seal ring 7.
Among the figure: 1, valve body, 2, flow channel, 3, discharge route, 4, spheroid, 5, upper valve rod, 6, lower valve rod, 7, seal ring, 8, upper groove, 9, low groove, 10, left groove, 11, right groove.
Embodiment
Provide embodiment of the present utility model below with reference to accompanying drawing, be used for formation of the present utility model is described further.
Embodiment 1
Sealing mechanism on the ball valve valve rod of present embodiment, be applied to valve body 1, the two ends of valve body 1 are respectively equipped with flow channel 2, discharge route 3, spheroid 4 is installed in the valve body 1, spheroid 4 is connected with upper valve rod 5, lower valve rod 6, has upper valve rod 5 in the valve body 1, sealing mechanism forms sealing on valve body 1 stuffing hole, upper valve rod 5 and the ball valve valve rod, sealing mechanism on the ball valve valve rod is the seal ring 7 that is the X type, and the top of X RunddichtringO 7 is provided with upper groove 8, below and is provided with that low groove 9, left side are provided with left groove 10, the right side is provided with right groove 11.
During use, top add the material gland, the bottom add backing strap respectively to upper groove 8, low groove 9 application of forces, seal ring 7 is to both sides skew, extruding, left groove 10, right groove 11 are close to upper valve rod 5 and axis hole, it is effective to reach better seal.

Claims (1)

1. sealing mechanism on the ball valve valve rod is characterized in that the seal ring (7) for being the X type, and the top of X RunddichtringO (7) is provided with upper groove (8), and the below is provided with low groove (9), and the left side is provided with left groove (10), and the right side is provided with right groove (11).
CN2010202493458U 2010-06-26 2010-06-26 Sealing mechanism on ball valve stem Expired - Fee Related CN201739624U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202493458U CN201739624U (en) 2010-06-26 2010-06-26 Sealing mechanism on ball valve stem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202493458U CN201739624U (en) 2010-06-26 2010-06-26 Sealing mechanism on ball valve stem

Publications (1)

Publication Number Publication Date
CN201739624U true CN201739624U (en) 2011-02-09

Family

ID=43554899

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202493458U Expired - Fee Related CN201739624U (en) 2010-06-26 2010-06-26 Sealing mechanism on ball valve stem

Country Status (1)

Country Link
CN (1) CN201739624U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105221832A (en) * 2015-11-12 2016-01-06 无锡隆盛科技股份有限公司 EGR valve valve rod leak-proof structure
CN105465400A (en) * 2015-12-25 2016-04-06 江苏信息职业技术学院 Efficient sealing ball valve
CN106895172A (en) * 2015-12-18 2017-06-27 纽威阀门有限公司 New pressure transmitting type ball valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105221832A (en) * 2015-11-12 2016-01-06 无锡隆盛科技股份有限公司 EGR valve valve rod leak-proof structure
CN106895172A (en) * 2015-12-18 2017-06-27 纽威阀门有限公司 New pressure transmitting type ball valve
CN105465400A (en) * 2015-12-25 2016-04-06 江苏信息职业技术学院 Efficient sealing ball valve

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: PENGLAI SHUICHENG CAST BASALT PIPE AND VALVE CO.,

Free format text: FORMER OWNER: QU SHUZHEN

Effective date: 20130327

Free format text: FORMER OWNER: JIAO YONGCHEN

Effective date: 20130327

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20130327

Address after: 265608, 6, Zhenxing Road East, Liu Gou Town, Yantai, Shandong, Penglai

Patentee after: Penglai Shuicheng Cast Basalt Pipe & Valve Co., Ltd.

Address before: 265608, 6, Zhenxing Road East, Liu Gou Town, Yantai, Shandong, Penglai

Patentee before: Qu Shuqin

Patentee before: Jiao Yongchen

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110209

Termination date: 20150626

EXPY Termination of patent right or utility model