CN2630589Y - Ball valve with long service life - Google Patents

Ball valve with long service life Download PDF

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Publication number
CN2630589Y
CN2630589Y CN 03226495 CN03226495U CN2630589Y CN 2630589 Y CN2630589 Y CN 2630589Y CN 03226495 CN03226495 CN 03226495 CN 03226495 U CN03226495 U CN 03226495U CN 2630589 Y CN2630589 Y CN 2630589Y
Authority
CN
China
Prior art keywords
valve
rod
ball
thread bush
valve body
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
CN 03226495
Other languages
Chinese (zh)
Inventor
苏金源
蔺荣春
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.)
SANGAO WEIDUOLI VALVE CO Ltd XIAMEN
Original Assignee
SANGAO WEIDUOLI VALVE CO Ltd XIAMEN
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 SANGAO WEIDUOLI VALVE CO Ltd XIAMEN filed Critical SANGAO WEIDUOLI VALVE CO Ltd XIAMEN
Priority to CN 03226495 priority Critical patent/CN2630589Y/en
Application granted granted Critical
Publication of CN2630589Y publication Critical patent/CN2630589Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a longer using ball valve, mainly consisting of a handle wheel, a valve rod, a valve cover, a valve body, a guide pin, a four-bar linkage mechanism, a ball valve, and a small valve rod. The valve is provided with a fluid inlet and an outlet channel which are arranged along the valve seat center line. The ball valve is arranged on the valve seat center line and can attach closely with the inner end port of the fluid inlet and the outlet channel. The ball valve is two valves arranged symmetrically, the upper and lower ends connect with the lower end of the valve rod and the upper end of the small valve rod movably by four-bar linkage mechanism. Due to the usage of two ball valves expansion and the rotation movement which are realized by the match of the parallel four-bar linkage and the upper and lower valve rod spiral grooves, the utility model has the advantages that the friction of the ball valve and the valve seat is zero, and the seal specific pressure is adjustable, with the service life of the ball valve prolonged.

Description

The ball valve that service time is long
Technical field
The utility model relates to a kind of ball-valve structure, particularly relates to a kind of service time of long ball valve.
Background technique
Existing ball valve generally comprises valve seat, the spool in valve body and the valve body, it is spherical that spool roughly is, drive valve seat rotation relatively by valve rod, when the through hole on the spool relative with the import and export of valve body when straight, valve just is in open mode, otherwise spool just cuts off the import and export of valve seat, and valve then is in closed condition.The spool of this ball valve and the motive sealing between the valve seat seal by existing certain specific pressure (power that is subjected on the unit area) between the two, this specific pressure produces when ball valve is tightened valve gap between erecting stage, when just having assembled, ball valve finishes and when being in closed condition, specific pressure value between the two is a maximum value, in use this specific pressure value (referring under the complete shut-down state) only can reduce later on, can not increase, the specific pressure value of this ball valve is uncontrollable, in the using process of ball valve, often occur biting, stuck, industry Frequently Asked Questions such as scuffing make that the working life of this ball valve is shorter.
Summary of the invention
The purpose of this utility model is to provide that a kind of seal pressure is adjustable, the friction of ball clack and valve seat is zero long ball valve service time.
For achieving the above object, solution of the present utility model is:
The ball valve that a kind of service time is long, it mainly is made up of handwheel, valve rod, valve gap, valve body, guide finger, telescopic mechanism, ball clack and small valve-rod; Described valve body has a fluid that laterally runs through valve body into and out of passage, described ball clack be arranged on this valve seat center line and can with fluid into and out of the airtight applying of passage inner port; The upper and lower end of ball clack is movably connected in the lower end of valve rod and the upper end of small valve-rod by telescopic mechanism respectively; Described valve bonnet seal is fixed in the upper end of valve body; Described valve rod is rotating to pass valve gap and handwheel is affixed, is provided with a spiral chute along oblique downward extension on the circumferential surface on valve rod top, and this spiral chute is slidingly matched with the end that laterally penetrates first guide finger of valve gap; The lower end of described small valve-rod is rotating to be placed through in the shrinkage pool of valve body, is provided with one along oblique upwardly extending spiral chute on the circumferential surface of small valve-rod, and this spiral chute is slidingly matched with the end that laterally penetrates second guide finger of valve body.
Described ball clack is along symmetrically arranged two ball clacks of valve rod axis.
The utility model also comprises the valve seat of a left and right symmetric arrangement, and this left and right valve seat is arranged at valve body fluid the inner into and out of passage respectively, and described ball clack is airtight to be fitted on the inner port of left and right valve seat.
The utility model also comprises a filler controlling device, and this filler controlling device is to be made of the transverse holes that filler, pressing plate, thread bush, adjustment are followed closely and be located on the valve gap; Described thread bush is fixed in the transverse holes on the valve gap, adjusts oncomelania and is connected in the thread bush, and the end roof pressure of adjusting nail is on pressing plate, and the pressing plate roof pressure is on filler.
Described telescopic mechanism is a quadratic crank mechanism, and this quadratic crank mechanism is to be made up of third connecting rod, the 4th connecting rod that first connecting rod, second connecting rod and an end that an end is movably articulated in the valve rod lower end are movably articulated in the small valve-rod upper end; The other end of first, second, third, fourth connecting rod is movably articulated on the ball clack.
The ball valve that service time according to claim 1 is long, it is characterized in that: the top of described valve rod is movably connected on the valve gap by a connection set, and this connection set is to be made of thread bush, connecting sleeve and thrust-bearing; Described thread bush, connecting sleeve are socketed on the valve rod successively, and described thrust-bearing is between thread bush and connecting sleeve.
The utility model utilizes parallel four connecting rods and valve rod to cooperate with spiral chute on the small valve-rod to realize that two ball clacks are flexible and rotatablely moves, thereby has the following advantages:
The friction of (one) two ball clack and valve seat is zero.During valve opening of the present utility model, two ball clacks shrink along valve seat (valve body) centerline direction lifts off a seat, and makes two ball clacks not contact with valve seat, thereby has prolonged the working life of ball valve.
(2) seal pressure is adjustable.Two ball clacks of the present utility model compress valve seat and produce the desired seal specific pressure under the effect of four connecting rods, so seal pressure can be adjusted with fluid erosion wearing and tearing, extent of corrosion and change of pressure, be applicable to high temperature, high pressure operating mode.
(3) simple in structure, good manufacturability of the present utility model has guaranteed that valve hangs down the reliability of torque operation and use.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 is a sectional view of the present utility model;
Fig. 2 is the stereogram of parts such as the utility model ball clack;
Fig. 3 is the sectional view of parts such as the utility model ball clack;
Fig. 4 is the sectional view along the A-A line of Fig. 3;
Fig. 5 is the utility model schematic diagram of movements.
Embodiment
As shown in Figure 1, the utility model long ball valve service time is made up of handwheel 1, connection set 2, valve rod 3, valve gap 4, filler controlling device 5, valve body 6, valve seat 7, first guide finger 8, quadratic crank mechanism 9, ball clack 10, small valve-rod 20, second guide finger 30, end cap 40, gasket seal 50.
Described valve body 6 has a fluid that laterally runs through valve body into and out of passage 61, and the inner into and out of passage 61 of this valve body 6 is respectively arranged with the valve seat 7 of left and right symmetry, and described ball clack 10 is airtight to be fitted on the inner port of left and right valve seat 71.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, described telescopic mechanism is that quadratic crank mechanism 9 also can be the bindiny mechanism that other can make ball clack 10 expand or shrink along the fluid of valve body into and out of passage 61 centerline directions.Described quadratic crank mechanism 9 is to be made up of third connecting rod 93, the 4th connecting rod 94 that first connecting rod 91, second connecting rod 92 and an end that an end is movably articulated in valve rod 3 lower ends are movably articulated in small valve-rod 20 upper ends.Described ball clack 10 is along symmetrically arranged two ball clacks 10 of valve rod axis, its the upper end respectively with quadratic crank mechanism 9 in first connecting rod 91 and second connecting rod 92 be movably hinged, its lower end respectively with quadratic crank mechanism in third connecting rod 93 and the 4th connecting rod 94 be movably hinged.Described valve gap 4 sealings are fixed in the upper end of valve body 6, are provided with gasket seal 50 between valve gap 4 and valve body 6.Described valve rod 3 is rotating, and to pass valve gap 4 affixed by flat key 70 with handwheel 1, on the circumferential surface on valve rod 3 tops, be provided with a spiral chute 31 along oblique downward extension, this spiral chute 31 is slidingly matched with the end that laterally penetrates first guide finger 8 of valve gap 4, makes to move up and down along this spiral chute 31 when valve rod 3 rotates; The lower end of described small valve-rod 20 is rotating to be placed through in the shrinkage pool 61 of valve body 6, on the circumferential surface of small valve-rod 20, be provided with one along oblique upwardly extending spiral chute 201, this spiral chute 201 is slidingly matched with the end that laterally penetrates second guide finger 30 of valve body 6, makes to move up and down along this spiral chute 201 when small valve-rod 20 rotates.
Described filler controlling device 5 is by filler 51, pressing plate 52, thread bush 53, adjusts nail 54 and the transverse holes 41 be located on the valve gap 4 constitutes.Described thread bush 53 is fixed in the transverse holes 41 on the valve gap 4, adjusts nail 54 and is screwed onto in the thread bush 53, and the end roof pressure of adjusting nail 54 is on pressing plate 52, and pressing plate 52 roof pressures are on filler 51.Just can adjust filler to valve rod 3 pressure, i.e. tightness by regulating the power that screws of adjusting nail 54.
The top of described valve rod 3 is movably connected on the valve gap 4 by a connection set 2, and this connection set 2 is to be made of thread bush 21, connecting sleeve 22 and thrust-bearing 23.Described thread bush 21, connecting sleeve 22 are socketed on the valve rod 3 successively, and described thrust-bearing 23 is between thread bush 21 and connecting sleeve 22.
Accept the corresponding part of the shrinkage pool 61 of small valve-rod 20 in the lower end of described valve body 6, be provided with an end cap 40, this end cap 40 is fixed in valve body 6 lower ends by bolt 60, and is provided with gasket seal 50 between the lower end of valve body 6 and end cap 40.
Working principle of the present utility model (as shown in Figure 5):
The utility model utilizes on parallel four-bar linkage 9 and valve rod 3 and the small valve-rod 20 spiral chute 31,201 to cooperate to realize two ball clacks 10 flexible and rotatablely move.During valve opening, two ball clacks 10 shrink along valve seat 7 (valve body 6) centerline direction lifts off a seat 7, and the fluid in the pipeline has evenly reduced the local scour corrosion of high-velocity fluid to valve seat 7 by valve along spherome surface, and last two ball clacks 10 turn to fully open position.During valve closing, two ball clacks 10 compress valve seat 7 generation desired seal under the effect of quadratic crank mechanism more reliable than means of press seals.Seal pressure can prolong the working life of ball valve with fluid erosion wearing and tearing, extent of corrosion and change of pressure adjustment.

Claims (6)

1, the ball valve of growing a kind of service time, it is characterized in that: it mainly is made up of handwheel, valve rod, valve gap, valve body, guide finger, telescopic mechanism, ball clack and small valve-rod; Described valve body has a fluid that laterally runs through valve body into and out of passage, described ball clack be arranged on this valve seat center line and can with fluid into and out of the airtight applying of passage inner port; The upper and lower end of ball clack is movably connected in the lower end of valve rod and the upper end of small valve-rod by a telescopic mechanism respectively; Described valve bonnet seal is fixed in the upper end of valve body; Described valve rod is rotating to pass valve gap and handwheel is affixed, is provided with a spiral chute along oblique downward extension on the circumferential surface on valve rod top, and this spiral chute is slidingly matched with the end that laterally penetrates first guide finger of valve gap; The lower end of described small valve-rod is rotating to be placed through in the shrinkage pool of valve body, is provided with one along oblique upwardly extending spiral chute on the circumferential surface of small valve-rod, and this spiral chute is slidingly matched with the end that laterally penetrates second guide finger of valve body.
2, the ball valve of growing service time according to claim 1 is characterized in that: described ball clack is along symmetrically arranged two ball clacks of valve rod axis.
3, the ball valve of growing service time according to claim 1, it is characterized in that: it also comprises the valve seat of a left and right symmetric arrangement, this left and right valve seat is arranged at valve body fluid the inner into and out of passage respectively, and described ball clack is airtight to be fitted on the inner port of left and right valve seat.
4, the ball valve of growing service time according to claim 1, it is characterized in that: it also comprises a filler controlling device, this filler controlling device is to be made of the transverse holes that filler, pressing plate, thread bush, adjustment are followed closely and be located on the valve gap; Described thread bush is fixed in the transverse holes on the valve gap, adjusts oncomelania and is connected in the thread bush, and the end roof pressure of adjusting nail is on pressing plate, and the pressing plate roof pressure is on filler.
5, the ball valve of growing service time according to claim 1, it is characterized in that: described telescopic mechanism is a quadratic crank mechanism, this quadratic crank mechanism is to be made up of third connecting rod, the 4th connecting rod that first connecting rod, second connecting rod and an end that an end is movably articulated in the valve rod lower end are movably articulated in the small valve-rod upper end; The other end of first, second, third, fourth connecting rod is movably articulated on the ball clack.
6, the ball valve of growing service time according to claim 1, it is characterized in that: the top of described valve rod is movably connected on the valve gap by a connection set, and this connection set is to be made of thread bush, connecting sleeve and thrust-bearing; Described thread bush, connecting sleeve are socketed on the valve rod successively, and described thrust-bearing is between thread bush and connecting sleeve.
CN 03226495 2003-05-23 2003-05-23 Ball valve with long service life Expired - Fee Related CN2630589Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03226495 CN2630589Y (en) 2003-05-23 2003-05-23 Ball valve with long service life

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03226495 CN2630589Y (en) 2003-05-23 2003-05-23 Ball valve with long service life

Publications (1)

Publication Number Publication Date
CN2630589Y true CN2630589Y (en) 2004-08-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 03226495 Expired - Fee Related CN2630589Y (en) 2003-05-23 2003-05-23 Ball valve with long service life

Country Status (1)

Country Link
CN (1) CN2630589Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100507325C (en) * 2007-10-18 2009-07-01 湖南泵阀制造有限公司 Hard-sealing zero-abrasion peeling valve
CN102767632A (en) * 2012-07-18 2012-11-07 上海凯科阀门制造有限公司 Ball valve and method for rigidity seal between valve element and valve seat in ball valve
CN107152534A (en) * 2017-04-17 2017-09-12 江苏盐阜电站阀门辅机制造有限公司 A kind of intelligent Power Station stop valve with solar power generation function
CN111692371A (en) * 2020-06-23 2020-09-22 邵玉强 Long-life ball valve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100507325C (en) * 2007-10-18 2009-07-01 湖南泵阀制造有限公司 Hard-sealing zero-abrasion peeling valve
CN102767632A (en) * 2012-07-18 2012-11-07 上海凯科阀门制造有限公司 Ball valve and method for rigidity seal between valve element and valve seat in ball valve
CN102767632B (en) * 2012-07-18 2014-02-19 上海凯科阀门制造有限公司 Ball valve and method for implementing rigid seal between valve element and valve seat in ball valve
CN107152534A (en) * 2017-04-17 2017-09-12 江苏盐阜电站阀门辅机制造有限公司 A kind of intelligent Power Station stop valve with solar power generation function
CN107152534B (en) * 2017-04-17 2019-05-07 江苏盐阜电站阀门辅机制造有限公司 A kind of intelligent disconnecting valve with solar power generation function
CN111692371A (en) * 2020-06-23 2020-09-22 邵玉强 Long-life ball valve

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GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee