CN205278447U - Formula of removing theatrical makeup and costume ball valve that floats - Google Patents
Formula of removing theatrical makeup and costume ball valve that floats Download PDFInfo
- Publication number
- CN205278447U CN205278447U CN201620051836.9U CN201620051836U CN205278447U CN 205278447 U CN205278447 U CN 205278447U CN 201620051836 U CN201620051836 U CN 201620051836U CN 205278447 U CN205278447 U CN 205278447U
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- ball valve
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- gap
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Abstract
The utility model provides a formula of removing theatrical makeup and costume ball valve that floats, including valve body (7), spheroid case (9), gland (21), with spheroid case (9) are connected and are upwards passed valve rod (20) of valve body mounting hole, the left and right sides of valve body (7) sealing connection respectively have left valve gap (14) and right valve gap (1), and well through -hole (71) link up about having in valve body (7), spheroid case (9) are arranged in through -hole (71), the right -hand member portion of a left side valve gap (14) penetrate in well through -hole (71) and with the inner wall threaded connection of well through -hole (71), be equipped with in the right -hand member portion of left valve gap (14) with the sealed complex left side disk seat (11) of spheroid case (9), the left end portion of the right side valve gap (1) penetrate in well through -hole (71) and with the inner wall threaded connection of well through -hole (71), be equipped with in the left end portion of right valve gap (1) with spheroid case (9) sealed complex right side disk seat (4). Compared with the prior art, the utility model discloses formula of removing theatrical makeup and costume ball valve that floats adopts three formula threaded connection structures, makes the ball valve structure compacter, and it is more convenient to install.
Description
Technical field
The utility model relates to valve, especially relates to a kind of down-mounting type floating ball valve.
Background technology
The principle of work of floating ball valve is freely supported by valve seat by ball valve core, under fluid pressure action, ball valve core produces displacement on fluid flow direction, it and exit end valve base sealing face is made to produce to contact more closely, namely the specific pressure on sealing face increases, thus forms the sealing of exit end. At present, small-bore high-pressure ball valve requires compact construction, and if adopt traditional two-piece type structure design will certainly increase the wall thickness of valve body, and the length of valve rod also can lengthen thereupon, causes unnecessary freely wasting. Traditional floating ball valve generally adopts the mode of " upper dress " to install valve rod, has so just lacked the design of anti-" blowout ", under high pressure medium works, there is bigger potential safety hazard.
In order to avoid valve rod by " blowout ", Chinese patent literature CN104747750A devises the floating ball valve of a kind of employing " lower dress " mode, by valve rod is worn from the through hole bottom valve body and be installed in valve body open holes, valve rod forms the step-like projection that diameter is greater than valve rod open holes diameter, step-like projection is resisted against the inwall of valve body from inside, thus ensures that valve rod can not by " blowout ". But the valve body of floating ball valve disclosed in the document is two-piece type structure, left and right two panels is needed to offer bolt hole and is connected by bolt nut, causes the wall thickness of valve body thicker, and structure is compact not; And its shaft length is also longer, during installation, valve rod can only insert from valve body bottom through-hole, cause the through-hole diameter bottom valve body must be greater than valve rod, and through-hole diameter bottom valve body bigger need to design special valve plug, lower cover and sealed structure and seal, make and install and all relatively bother, also reduce the reliability that ball valve uses under high pressure medium.
Summary of the invention
In view of this, in order to overcome the defect of prior art, the purpose of this utility model is to provide a kind of down-mounting type floating ball valve, and this down-mounting type floating ball valve compact construction is easy for installation, works more reliable.
In order to achieve the above object, the utility model is by the following technical solutions:
A kind of down-mounting type floating ball valve, comprise valve body, the ball valve core being arranged in described valve body, the valve body open holes being arranged on described valve body, mount cover the gland on described valve body, it be connected with described ball valve core and be upward through the valve rod of described valve body open holes, it is characterised in that: the left and right sides of described valve body is sealedly connected with left valve gap and right valve gap respectively, having the middle through hole that left and right is through in described valve body, described ball valve core is arranged in described through hole; The right part of described left valve gap is worn in described middle through hole and inner thread with described middle through hole (71) is connected, and the right part of described left valve gap is provided with the left valve seat being sealed and matched with described ball valve core; The left part of described right valve gap is worn in described middle through hole and inner thread with described middle through hole is connected, and the left part of described right valve gap is provided with the right valve seat being sealed and matched with described ball valve core.
Preferably, described left valve gap has the left locating surface that the face, left side with described valve body is adjacent to, between described left locating surface and the face, left side of described valve body, is provided with left dog screw; Described right valve gap has the right locating surface that the face, right side with described valve body is adjacent to, between described right locating surface and the face, right side of described valve body, is provided with right dog screw.
Further preferably, between described left valve seat and described ball valve core, it is metal hard-sealing between described ball valve core and described right valve seat.
In the utility model, between the right part of described left valve gap and the inwall of described middle through hole, between the left part of described right valve gap and the inwall of described middle through hole, all it is provided with sealing member respectively between the outer circumference surface of described right valve seat and described right valve gap and it is tightly connected.
In the utility model, described valve rod open holes being provided with at least two sealing members coordinated with described valve stem seal, be also provided with filler group in the upper shed of described valve rod open holes, described filler group is fixed by described gland.
Preferably, described valve body is provided with the lower bleed of the underface being positioned at described valve rod open holes, and described lower bleed is provided with lubricator. Lower bleed only plays the effect of auxiliary installation, puts into valve body not by lower bleed, therefore descend the aperture of bleed can do less, be less than valve rod and the diameter of valve rod open holes when valve rod is installed.
Preferably, the elasticity part that preliminary tension is provided it is provided with between the right part of described left valve gap and described left valve seat.
Further preferably, described elasticity part is butterfly spring.
Preferably, described valve rod is also fixedly connected with valve stem coupling member, described valve stem coupling member is connected with handle.
In a particular embodiment, one of them of the head of described valve rod and the head of described valve stem coupling member is provided with Polygons protuberance, and another is provided with the Polygons groove matched; Also being provided with pin-and-hole on the side, side of described Polygons protuberance, between the head of described valve rod and the head of described valve stem coupling member, bearing pin by coordinating with described pin-and-hole is fixedly connected with.
Compared to prior art, down-mounting type floating ball valve of the present utility model has the following advantages:
(1) down-mounting type floating ball valve of the present utility model adopts three-chip type screw connection structure, compared with the floating ball valve of traditional two-piece type structure, valve body does not need design bolt hole, reduces the wall thickness of valve body, make ball-valve structure compacter.
(2) owing to the valve gap of valve body and both sides is all threaded, the position of through hole on two valve gaps and valve body laminating rear flange face can not be ensured. Therefore, down-mounting type floating ball valve of the present utility model have employed the mode first filling post-treatment in the design process and solves this problem, increases dog screw between valve body and valve gap, valve body valve gap both can have been made to fit tightly connection, served again the effect of location.
(3) valve rod of the present utility model adopts the mode of " lower dress " to install, time bleed has been offered immediately below valve body open holes, first by middle through hole, valve rod is put into during installation, then valve rod alignment valve rod open holes is made, stretched into from lower bleed by instrument is pressed in valve rod open holes by valve rod again, it is achieved the installation of valve rod.
(4) valve rod of the present utility model can also adopt external valve stem coupling member to realize valve rod lengthening by the mode of pinned connection valve rod, the connection of the head of valve rod and valve stem coupling member adopts Polygons protuberance to be connected with Polygons groove fit, and in the one side of Polygons, make a call to a pin-and-hole, after during installation, valve rod first loads in valve rod open holes, valve stem coupling member is loaded onto again, by pinned connection valve rod and valve stem coupling member from outside. Wherein, moment of torsion power when valve switch is born in the side of the polygonized structure on the head of valve rod and valve stem coupling member, and bearing pin only plays ligation, not by the impact of moment of torsion power.
(5) realizing sealing under high pressure medium effect for realizing floating ball valve, down-mounting type floating ball valve of the present utility model all adopts metal hard-sealing between ball valve core and left and right valve seat. Entrance end valve seat (i.e. left valve seat) is provided with an elasticity part, ensures to make floating ball valve sealing in a low voltage state in the preliminary tension of elasticity part. Along with the increase of operating pressure, ball valve core compresses to exit end valve seat, it is achieved high pressure seal. Between the outer circumference surface of exit end valve seat (i.e. right valve seat) and right valve gap, sealing member is set, ensures right valve seat and the sealing of right valve gap.
(6) compared with traditional upper dress formula valve rod, high pressure of the present utility model, ball valve valve rod small-bore, Flange joint are designed with anti-" blowout " design, ensure that the security of use. The utility model also placed at least two sealing members on valve body open holes, effectively ensure that valve stem seal.
Accompanying drawing explanation
Fig. 1 is longitudinal diagrammatic cross-section of the utility model down-mounting type floating ball valve.
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Fig. 3 is the vertical view of the utility model down-mounting type floating ball valve.
1 right valve gap, 2 sealing members, 3 lubricators, 4 right valve seats, 5 back-up rings, 6 sealing members, 7 valve bodies, 8 pads, 9 ball valve cores, 10 elasticity parts, 11 left valve seats, 12 springs, 13 steel balls, 14 left valve gaps, 15 thrust pads, 16 back-up rings, 17 left dog screw, 18 sealing members, 19 filler groups, 20 valve rods, 21 glands, 22 strongbacks, 23 plain washers, 24 nuts, 25 valve stem coupling member, 26 handles, 27 pins, 28 bearing pins, 29 screws, 30 right dog screw, 31 rivets, 32 flow arrows, through hole in 71-.
Embodiment
Below in conjunction with accompanying drawing, the utility model is preferred embodiment described in detail.
Refer to Fig. 1 to 3, the present embodiment provides a kind of down-mounting type floating ball valve, comprise valve body 7, the ball valve core 9 being arranged in described valve body 7, the valve body open holes being arranged on valve body 7, mounts cover the gland 21 on valve body 7, it is connected with ball valve core 9 and it is upward through the valve rod 20 of described valve body open holes, the left and right sides of valve body 7 is sealedly connected with left valve gap 14 and right valve gap 1 respectively, has the middle through hole 71 that left and right is through in valve body 7, and ball valve core 9 is arranged in through hole 71; The right part of left valve gap 14 is worn in middle through hole 71 and inwall with middle through hole 71 is threaded connection, and the right part of left valve gap 14 is provided with the left valve seat 11 being sealed and matched with ball valve core 9; The left part of right valve gap 1 is worn in middle through hole 71 and inwall with middle through hole 71 is threaded connection, and the left part of right valve gap 1 is provided with the right valve seat 4 being sealed and matched with ball valve core 9.
In this enforcement, left valve gap 14 has the left locating surface that the face, left side with valve body 7 is adjacent to, between the face, left side of left locating surface and valve body 7, it is provided with left dog screw 17; Right valve gap 1 has the right locating surface that the face, right side with described valve body 7 is adjacent to, between described right locating surface and the face, right side of described valve body 7, is provided with right dog screw 30. Owing to being all threaded between valve body 7 and left valve gap 14, right valve gap 1, can not ensure that valve gap and valve body 7 are fitted the position of through hole on rear flange face. Therefore, the down-mounting type floating ball valve of the present embodiment have employed the mode first filling post-treatment and solves orientation problem, offers positioning spiro pit between valve body and valve gap, then installs dog screw, both valve body valve gap can have been made to fit tightly connection, served again the effect of location.
In the present embodiment, between left valve seat 11 and ball valve core 9, it is metal hard-sealing between ball valve core 9 and right valve seat 4, it is ensured that under high pressure medium effect, realize sealing. In addition, between the right part of left valve gap 14 and the inwall of middle through hole 71, it is equipped with sealing member 2 between the left part of right valve gap 1 and the inwall of middle through hole 71 and it is tightly connected, be also provided with sealing member 6 between the outer circumference surface of right valve seat 4 and right valve gap 1 and be tightly connected. In the present embodiment, sealing member 2 and sealing member 6 are O.
In order to the sealing ensured between valve rod 20 and valve body 7, valve rod open holes being provided with at least two sealing members 18 being sealed and matched with valve rod 20, in the present embodiment, the seal 18 is also O. Also being provided with filler group 19 in the upper shed of valve rod open holes, filler group 19 is fixed by gland 21. Gland 21 is fixed on valve body 7 upper end by multiple screw 29.
Valve body 7 is provided with the lower bleed of the underface being positioned at described valve rod open holes, and described lower bleed is provided with lubricator 3. Put into valve body 7 not by lower bleed when valve rod 20 is installed, therefore descend the aperture of bleed can do less, be less than valve rod 20 and the diameter of valve rod open holes.
The elasticity part 10 that preliminary tension is provided it is provided with between the right part of left valve gap 14 and left valve seat 11. In the present embodiment, elasticity part 10 is butterfly spring. Under the preliminary tension effect of elasticity part 10, floating ball valve sealing in a low voltage state can be made. Along with the increase of operating pressure, ball valve core 9 to the right valve seat 4 compress, it is achieved high pressure seal.
In the present embodiment, after valve rod 20 is put into from the middle through hole 71 of valve body 7 so that it is the alignment valve rod open holes of upper end, then stretch into valve rod 20 upwards jack-up in lower bleed by instrument, make valve rod 20 upper end protrude upward valve body 7. The bottom of valve rod 20 has the step-like projection that diameter is greater than valve rod open holes diameter, and step-like projection can be conflicted on the inwall of valve body 7, avoids valve rod 20 under high pressure by " blowout ". In the present embodiment, between step-like projection and valve body 7 inwall, also it is provided with thrust pad 15. Then, ball valve core 9 is put into through hole 71, valve rod 20 times ends are coordinated with ball valve core 9, and between valve rod 20 times ends and ball valve core 9, be also provided with spring 12 and the steel ball 13 of radial setting. The upper end of ball valve core 9 is provided with connective slot, the bayonet socket that the sidewall of connective slot is provided with steel ball 13 coordinates, and after the connective slot of valve rod 20 times end insertion ball valve cores 9, the first radius vector of steel ball 13, to adduction, then ejects under the effect of spring 12 and is stuck on bayonet socket.
When the entire length of valve rod 20 requires longer, directly entirety therefrom through hole 71 cannot put into installation, now just need to adopt external valve stem coupling member 25 to be lengthened by valve rod 20, formation valve rod assembly. After valve stem coupling member 25 is connected with valve rod 20, then strongback 22 and handle 26 are installed by plain washer 23 and nut 24 in valve stem coupling member 25 upper end.
Specifically, as illustrated in fig. 1 and 2, in the present embodiment, one of them of the head of valve rod 20 and the head of valve stem coupling member 25 is provided with Polygons protuberance, and another is provided with the Polygons groove matched. Polygons can be equilateral triangle, square or other regular polygons. Also being provided with pin-and-hole on the side, side of described Polygons protuberance, between the head of valve rod 20 and the head of valve stem coupling member 25, bearing pin 28 by coordinating with described pin-and-hole is fixedly connected with. Valve stem coupling member 25 installs filler group 19 and gland 21 after installing in valve rod open holes upper shed, and then installs pin 27 for locating, with pin 27 with the use of strongback 22, for operating the handle 26 of rotary valve rod 20.
After installing valve rod 20 and ball valve core 9, by butterfly spring and left valve seat 11 be housed left valve gap 14 by being threaded into the left side of middle through hole 71, by right valve seat 4 is housed right valve gap 1 by being threaded into the right side of middle through hole 71, left valve seat 11, right valve seat 4 are sealed and matched with ball valve core 9, left valve gap 14, right valve gap 1 all screw after putting in place, upper left dog screw 17 and right dog screw 30 are installed respectively, then lubricator 3 are being installed in lower bleed. Wherein, the left and right sides of valve body 7 are also respectively equipped with pad 8, valve body 7 and left valve gap 14, right valve gap 1 are fitted tightly.
Above-described embodiment is only for illustrating technical conceive of the present utility model and feature; its object is to allow person skilled in the art can understand content of the present utility model and implement according to this; protection domain of the present utility model can not be limited with this; all equivalences done according to the utility model spirit change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (10)
1. a down-mounting type floating ball valve, comprise valve body (7), the ball valve core (9) being arranged in described valve body (7), the valve body open holes being arranged on described valve body (7), mount cover the gland (21) on described valve body (7), it is connected with described ball valve core (9) and it is upward through the valve rod (20) of described valve body open holes, it is characterized in that: the left and right sides of described valve body (7) is sealedly connected with left valve gap (14) and right valve gap (1) respectively, described valve body (7) has the middle through hole (71) that left and right is through, described ball valve core (9) is arranged in described through hole (71), the right part of described left valve gap (14) is worn in described middle through hole (71) and inner thread with described middle through hole (71) is connected, and the right part of described left valve gap (14) is provided with the left valve seat (11) being sealed and matched with described ball valve core (9), the left part of described right valve gap (1) is worn in described middle through hole (71) and inner thread with described middle through hole (71) is connected, and the left part of described right valve gap (1) is provided with the right valve seat (4) being sealed and matched with described ball valve core (9).
2. a kind of down-mounting type floating ball valve according to claim 1, it is characterized in that: described left valve gap (14) has the left locating surface that the face, left side with described valve body (7) is adjacent to, between the face, left side of described left locating surface and described valve body (7), is provided with left dog screw (17); Described right valve gap (1) has the right locating surface that the face, right side with described valve body (7) is adjacent to, between the face, right side of described right locating surface and described valve body (7), is provided with right dog screw (30).
3. a kind of down-mounting type floating ball valve according to claim 2, it is characterised in that: between described left valve seat (11) and described ball valve core (9), between described ball valve core (9) and described right valve seat (4), it is metal hard-sealing.
4. according to the arbitrary described a kind of down-mounting type floating ball valve of claims 1 to 3, it is characterised in that: between the right part of described left valve gap (14) and the inwall of described middle through hole (71), between the left part of described right valve gap (1) and the inwall of described middle through hole (71), all it is provided with sealing member respectively between the outer circumference surface of described right valve seat (4) and described right valve gap (1) and it is tightly connected.
5. according to the arbitrary described a kind of down-mounting type floating ball valve of claims 1 to 3, it is characterized in that: described valve rod open holes is provided with at least two sealing members (18) being sealed and matched with described valve rod (20), also being provided with filler group (19) in the upper shed of described valve rod open holes, described filler group (19) is fixed by described gland (21).
6. according to the arbitrary described a kind of down-mounting type floating ball valve of claims 1 to 3, it is characterised in that: described valve body (7) is provided with the lower bleed of the underface being positioned at described valve rod open holes, and described lower bleed is provided with lubricator (3).
7. according to the arbitrary described a kind of down-mounting type floating ball valve of claims 1 to 3, it is characterised in that: it is provided with the elasticity part (10) that preliminary tension is provided between the right part of described left valve gap (14) and described left valve seat (11).
8. a kind of down-mounting type floating ball valve according to claim 7, it is characterised in that: described elasticity part is butterfly spring.
9. according to the arbitrary described a kind of down-mounting type floating ball valve of claims 1 to 3, it is characterised in that: described valve rod (20) is also fixedly connected with valve stem coupling member (25), described valve stem coupling member (25) is connected with handle (26).
10. a kind of down-mounting type floating ball valve according to claim 9, it is characterised in that: one of them of the head of described valve rod (20) and the head of described valve stem coupling member (25) is provided with Polygons protuberance, and another is provided with the Polygons groove matched; Also being provided with pin-and-hole on the side, side of described Polygons protuberance, between the head of described valve rod (20) and the head of described valve stem coupling member (25), bearing pin (28) by coordinating with described pin-and-hole is fixedly connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620051836.9U CN205278447U (en) | 2016-01-20 | 2016-01-20 | Formula of removing theatrical makeup and costume ball valve that floats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620051836.9U CN205278447U (en) | 2016-01-20 | 2016-01-20 | Formula of removing theatrical makeup and costume ball valve that floats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205278447U true CN205278447U (en) | 2016-06-01 |
Family
ID=56063025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620051836.9U Withdrawn - After Issue CN205278447U (en) | 2016-01-20 | 2016-01-20 | Formula of removing theatrical makeup and costume ball valve that floats |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205278447U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508648A (en) * | 2016-01-20 | 2016-04-20 | 纽威石油设备（苏州）有限公司 | Floating ball valve installed from bottom |
-
2016
- 2016-01-20 CN CN201620051836.9U patent/CN205278447U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508648A (en) * | 2016-01-20 | 2016-04-20 | 纽威石油设备（苏州）有限公司 | Floating ball valve installed from bottom |
| CN105508648B (en) * | 2016-01-20 | 2018-05-25 | 纽威石油设备（苏州）有限公司 | A kind of down-mounting type floating ball valve |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160601 Effective date of abandoning: 20180525 |