CN206617611U - A kind of ball valve - Google Patents
A kind of ball valve Download PDFInfo
- Publication number
- CN206617611U CN206617611U CN201720226437.6U CN201720226437U CN206617611U CN 206617611 U CN206617611 U CN 206617611U CN 201720226437 U CN201720226437 U CN 201720226437U CN 206617611 U CN206617611 U CN 206617611U
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- China
- Prior art keywords
- ring
- valve rod
- spheroid
- valve
- fixator
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Abstract
The utility model discloses a kind of ball valve, including valve body, bonnet, spheroid, valve rod, pivot, handwheel, pressure release plug screw, support and gear-box, spheroid is in valve body, valve stem part stretches into valve body and linked with spheroid, pivot stretches into valve body and is pivotally connected with spheroid, pivot is coaxial with valve rod, the portion outboard that valve rod is stretched out outside valve body is arranged with support, connecting seat is provided with support, gear-box is fixed with connecting seat, worm and gear is provided with gear-box, worm gear is connected with valve rod upper end, worm screw is connected with handwheel, valve body is provided with relief hole, pressure release plug screw is arranged in relief hole, it is close to be provided with the first fixator and the second fixator respectively in spheroid both sides, sealed between spheroid and two fixators.Ball-valve structure of the present utility model is simple, sealed reliable, easy to operate advantage.
Description
Technical field
The utility model is related to valve technology field, more particularly to a kind of ball valve.
Background technology
In China, ball valve be widely used petroleum refining, long-distance transport pipes, chemical industry, papermaking, pharmacy, water conservancy, electric power,
The industries such as municipal administration, steel, are mainly used to make the flow direction for cutting off, distributing and changing medium, and it only needs to use what is be rotated by 90 °
The rotating torque of operation and very little can just close tight.
Utility model content
The utility model proposes a kind of ball valve, the ball valve has the advantages that simple in construction, sealed reliable, easy to operate.
In order to solve the above-mentioned technical problem, the utility model proposes following technical scheme：
A kind of ball valve, including valve body, bonnet, spheroid, valve rod, pivot, handwheel, pressure release plug screw, support and gear-box, spheroid
In valve body, valve body be provided with valve rod hole, valve rod through valve rod hole and with spheroid link, pivot stretch into valve body and with spheroid pivot
Connect, pivot is coaxial with valve rod, support is arranged with outside valve rod, gap is left between support and valve rod, support is provided with connecting seat, tooth
Roller box is fixed on connecting seat, and worm gear and worm screw are provided with gear-box, and worm gear is connected with valve rod, and worm screw is connected with handwheel, handwheel
Lock bolt is provided between gear-box, valve body is provided with relief hole, and pressure release plug screw is threadably secured in relief hole, and spheroid both sides are divided
It is not close to be provided with the first fixator and the second fixator, the first fixator passes through the first seal ring seal, the first sealing with spheroid
Ring is compressed by the first pressure ring, and the first pressure ring is connected by bolt with the first fixator, and the second fixator is close by second with spheroid
Seal ring is sealed, and the second sealing ring is compressed by the second pressure ring, and the second pressure ring is connected by bolt with the second fixator.The utility model
Beneficial effect be：Rotating handwheel rotates valve rod, and drives spheroid to rotate, and pivot is provided with valve rod for the rotation of spheroid to be turned
Axle；When ball valve fluid pressure is excessive, pressure release is carried out by pressure release plug screw, the seal failure caused by pressure is excessive is prevented；The
One fixator and the second fixator are located at spheroid both sides, and provided with the first sealing ring and the second sealing ring, with good sealing
Effect；First pressure ring and the second pressure ring can make the first sealing ring and the second sealing ring be close to sealing surface respectively, improve sealing effect
Really, and the first pressure ring and the second pressure ring be it is dismountable, it is easy for removal and installation, change, it is easy to maintenance.
In some embodiments, the first back-up ring is provided between the first fixator and valve body, valve body ring is circumferentially uniformly provided with
The first spring is provided with some first holes, first hole, one end of the first spring compresses the first back-up ring, the second fixator and valve
The second back-up ring is provided between lid, bonnet ring, which is circumferentially uniformly provided with some second holes, the second hole, is provided with second spring, second spring
Push down second back-up ring.The spring energy of first spring promotes the first fixator to be close to spheroid, and the spring energy of second spring is promoted
Second fixator is close to spheroid, improves the sealing effectiveness between the first fixator and spheroid, the second fixator and spheroid；First
The elastic force of spring is applied to the first back-up ring, and the elastic force of second spring is applied to the second back-up ring, the first back-up ring and the second back-up ring difference
Compress the first fixator and the second fixator so that the first fixator is more uniformly stressed with the second fixator, improve each
Locate sealing uniform, prevent from revealing caused by sealing is uneven.
In some embodiments, sealed between the first fixator and valve interior wall by graphite rope and the first general stopper ring,
First general stopper ring is locked by baffle ring, is sealed between the second fixator and bonnet by the second general stopper ring.First fixator and valve
Graphite rope between body plays first of sealing function, and the first general stopper ring plays second sealing function, and two seals have good
Sealing effectiveness；General stopper ring is a kind of high-performance sealed part of the built-in special spring of U-shaped Teflon, due to the effect of spring, is had
Better seal is acted on and lasting sealing effectiveness.
In some embodiments, it is fastened by bolts, and is sealed with the second graphite gasket between valve body and bonnet.Bolt
It is fixed detachable, and the second graphite gasket can be compressed, improve sealing effectiveness.
In some embodiments, valve rod hole inwall is stepped, valve rod insertion valve rod hole, valve rod side provided with radially to
The bulge loop of outer extension, is provided with axle sleeve between bulge loop and valve rod hole inwall, bulge loop is provided with thrust washer.Thrust washer can promote valve
Bar is rotated, and can bear axial load.
In some embodiments, it is arranged with support outside valve rod, the contact surface of support and valve rod hole passes through the first graphite pads
Circle sealing, support is fixed by bolt and valve body and compresses first graphite gasket, will be sealed at valve rod hole.
In some embodiments, it is provided with the gap of pedestal upper end and valve rod in filler packing ring and filler group, filler group
Side is provided with gland, and gland compresses filler group.Filler group can be by the clearance seal between pedestal upper end and valve rod.
In some embodiments, valve body is provided with stair-stepping pivot hole, pivot insertion pivot hole, and passes through the 3rd graphite
Washer sealing.The main function of pivot is fixed spheroid, and pivot is designed using split with valve body rather than is molded with valve body,
Reduce the shaping difficulty and assembly difficulty of ball valve.
In some embodiments, pressure release plug screw is sealed with relief hole by the 4th graphite gasket.4th graphite gasket is prevented
Fluid stopping body flows out from relief hole.
In some embodiments, the top of spheroid is provided with square groove, and the end of valve rod is square, valve stem end insertion ball
The square groove of body.During rotation valve rod, spheroid can be driven to rotate together, valve rod is inserted directly into the square groove of spheroid, realizes spheroid
With the linkage of valve rod, simple and fast is assembled.
Brief description of the drawings
Fig. 1 is the profile of the ball valve of the embodiment of the utility model one.
Fig. 2 is the schematic diagram and pressure release plug screw partial schematic diagram in A directions in Fig. 1.
Fig. 3 is the handwheel and gear-box junction side schematic view of the ball valve of the embodiment of the utility model one.
Fig. 4 is the enlarged drawing of I positions in Fig. 1.
Fig. 5 is the enlarged drawing of II position in Fig. 1.
Fig. 6 is the enlarged drawing of III position in Fig. 1.
Fig. 7 is the valve rod upper end partial enlarged drawing of the ball valve of the embodiment of the utility model one.
Embodiment
Elaborated with reference to the embodiment of Fig. 1-7 pairs of ball valves of the present utility model.
As depicted in figs. 1 and 2, a kind of ball valve, including valve body 1, bonnet 2, spheroid 3, valve rod 4, pivot 5, handwheel 6, pressure release
Plug screw 7, support 26 and gear-box 32, spheroid 3 is in valve body 1, and valve body 1 is provided with valve rod hole 102 (see Fig. 6), and valve rod 4 passes through valve
Rod aperture 102 simultaneously links with spheroid 3, and pivot 5 stretches into valve body 1 and is pivotally connected with spheroid 3, and pivot 5 is coaxial with valve rod 4, is arranged outside valve rod 4
There is support 26, gap is left between support 26 and valve rod 4, support 26 is provided with connecting seat 33, and gear-box 32 is fixed on connecting seat
On 33, intermeshing worm gear and worm screw are provided with gear-box 32, worm gear is connected with the upper end of valve rod 4, worm screw is with being located at gear
The handwheel 6 of the side of case 32 is connected.Support 26 can be used to install gear-box 32 and support and protection valve rod 4.As shown in figure 3, hand
Lock bolt 31 is provided between wheel 6 and gear-box 32, lock bolt 31 is locked, others can be prevented arbitrarily to be turned on and off valve.Rotate
During handwheel 6, gear-box 32 delivers torque to valve rod 4, rotates valve rod 4, drives the rotation of spheroid 3, controls the unlatching of ball valve
And closure.As shown in Fig. 2 valve body 1 is provided with relief hole 101, pressure release plug screw 7 is threadably secured in relief hole 101.Such as Fig. 1,
Shown in Fig. 4 and Fig. 5, the both sides of spheroid 3 are respectively equipped with the first fixator 8 and the second fixator 9, and the first fixator 8 passes through with spheroid 3
First sealing ring 10 is sealed, and the first sealing ring 10 is compressed by the first pressure ring 11, and the first pressure ring 11 passes through bolt and the first fixator 8
Connection, the second fixator 9 is sealed with spheroid 3 by the second sealing ring 12, and the second sealing ring 12 is compressed by the second pressure ring 13, and second
Pressure ring 13 is connected by bolt with the second fixator 9.Handwheel 6 is rotated, valve rod 4 is delivered torque to by gear-box 32, makes valve
Bar 4 is rotated, and drives spheroid 3 to rotate, and pivot 5 plays a part of support to spheroid 3, and cooperatively forms turning for spheroid 3 with valve rod 1
Axle.After ball valve is closed, if middle cavity pressure is excessive, pressure release can be carried out by pressure release plug screw 7, prevented caused by pressure is excessive
Seal failure.First fixator 8 and the second fixator 9 are close to the both sides of spheroid 3, with the first sealing ring 10 and the second sealing ring
12, improve sealing effectiveness.First pressure ring 11 and the second pressure ring 13 can make the first sealing ring 10 and the second sealing ring 12 tight respectively
Paste sealing surface, further increase sealing effectiveness, and the first pressure ring 11 and the second pressure ring 13 be it is dismountable, it is easy to disassemble with
Install, change, it is easy to maintenance.
In some embodiments, as shown in Figures 4 and 5, the first back-up ring 14 is provided between the first fixator 8 and valve body 1,
The ring of valve body 1, which is circumferentially uniformly provided with some first holes 15, the first hole 15, is provided with the first spring 16, and one end of the first spring 16 is compressed
First back-up ring 14, is provided with the second back-up ring 17 between the second fixator 9 and bonnet 2, the ring of bonnet 2, which is circumferentially uniformly provided with, some is provided with the
Second spring 19 is provided with two holes 18, the second hole 18, second spring 19 pushes down the second back-up ring 17.The spring energy of first spring 16 is pushed away
Dynamic first fixator 8 is close to spheroid 3, and the spring energy of second spring 19 promotes the second fixator 9 to be close to spheroid 3, improves first
Sealing effectiveness between fixator 8 and spheroid 3, the second fixator 9 and spheroid 3；The elastic force of first spring 16 is applied to first gear
Circle 14, the elastic force of second spring 19 is applied to the second back-up ring 17, and the first back-up ring 14 and the second back-up ring 17 compress the first fixation respectively
The fixator 9 of device 8 and second so that the first fixator 8 is more uniformly stressed with the second fixator 9, improves sealing everywhere
Uniformly, prevent from revealing caused by sealing is uneven.
In some embodiments, as shown in Figures 4 and 5, graphite rope is passed through between the first fixator 8 and the inwall of valve body 1
20 and first general stopper ring 21 seal, the first general stopper ring 21 is locked by baffle ring 22, passes through between the second fixator 9 and bonnet 2
Two general stopper rings 23 are sealed.20 first of sealing functions of graphite rope between first fixator 8 and valve body 1, the first general stopper ring 21
Second sealing function is played, two seals have good sealing effectiveness.General stopper ring is a kind of built-in special spring of U-shaped Teflon
High-performance sealed part, due to the effect of spring, acted on better seal and lasting sealing effectiveness.
In some embodiments, by being fastened by bolts between valve body 1 and bonnet 2, as shown in figure 5, valve body 1 and valve
The contact surface of lid 2 is sealed with the second graphite gasket 28.Bolt is detachable, and can compress the second graphite gasket 28, improves sealing effectiveness.
In some embodiments, as shown in fig. 6, the inwall of valve rod hole 102 is stepped, the insertion valve rod hole 102 of valve rod 4,
The side of valve rod 4 is provided with the bulge loop 401 extended radially outwardly, and axle sleeve 24, bulge loop are provided between bulge loop 401 and the inwall of valve rod hole 102
401 are provided with thrust washer 25.Thrust washer 25 can promote valve rod 4 to rotate, and can bear axial load.
In some embodiments, as shown in fig. 6, the contact surface of support 26 and valve rod hole 102 passes through the first graphite gasket
27 sealings, support 26 is fixed with valve body 1 by bolt and compresses the first graphite gasket 27, will be sealed at valve rod hole 102.
In some embodiments, as shown in fig. 7, in the gap of the upper end of support 26 and valve rod 4 provided with filler packing ring 34 and
Filler group 35, the top of filler 35 is provided with gland 36, and gland 36 compresses filler group 35.Filler group 35 can be by the upper end of support 26 and valve
Clearance seal between bar 4.
In some embodiments, as shown in figure 1, valve body 1 is provided with stair-stepping pivot hole 103, the insertion pivot hole of pivot 5
103, and sealed by the 3rd graphite gasket 29.Pivot 5 is designed using split with valve body 1 rather than is integrally formed with valve body 1, is dropped
The shaping difficulty and assembly difficulty of low ball valve.
In some embodiments, as shown in Fig. 2 pressure release plug screw 7 is close by the 4th graphite gasket 30 with relief hole 101
Envelope.4th graphite gasket 30 prevents fluid from being flowed out from relief hole 101.
In some embodiments, the top of spheroid 3 is provided with square groove, and the end of valve rod 4 is square, valve rod 4 it is square
The square groove of spheroid 3 is inserted in end.During rotation valve rod 4, spheroid 3 can be driven to rotate together, valve rod 4 is inserted directly into spheroid 3
Square groove, realizes the linkage of spheroid 3 and valve rod 4, not only increases moment of torsion, and assembling simple and fast.
Above-described is only some embodiments of the present utility model.For the person of ordinary skill of the art,
On the premise of the utility model creation design is not departed from, various modifications and improvements can be made, these belong to this practicality
New protection domain.
Claims (10)
1. a kind of ball valve, it is characterised in that including valve body (1), bonnet (2), spheroid (3), valve rod (4), pivot (5), handwheel
(6), pressure release plug screw (7), support (26) and gear-box (32), the spheroid (3) is in the valve body (1), the valve body (1)
Provided with valve rod hole (102), the valve rod (4) is stretched into the valve rod hole (102) and linked with the spheroid (3), the pivot (5)
Stretch into the valve body (1) and be pivotally connected with the spheroid (3), the pivot (5) is coaxial with the valve rod (4), and the valve rod (4) is outside
The support (26) is arranged with, gap is left between the support (26) and the valve rod (4), the support (26) is provided with company
Joint chair (33), the gear-box (32) is fixed on the connecting seat (33), and worm gear and worm screw are provided with the gear-box (32),
The worm gear is connected with the valve rod (4), and the worm screw is connected with the handwheel (6), the handwheel (6) and the gear-box
(32) between be provided with lock bolt (31), the valve body (1) be provided with relief hole (101), the pressure release plug screw (7) be threadably secured in
In the relief hole (101), spheroid (3) both sides are close to be provided with the first fixator (8) and the second fixator (9), institute respectively
State the first fixator (8) to seal by the first sealing ring (10) with the spheroid (3), first sealing ring (10) is by the first pressure
Ring (11) is compressed, and first pressure ring (11) is connected by bolt with first fixator (8), second fixator (9)
Sealed with the spheroid (3) by the second sealing ring (12), second sealing ring (12) is compressed by the second pressure ring (13), described
Second pressure ring (13) is connected by bolt with second fixator (9).
2. ball valve according to claim 1, it is characterised in that set between first fixator (8) and the valve body (1)
There is the first back-up ring (14), valve body (1) ring is circumferentially uniformly provided with some first holes (15), first hole (15) provided with the
One spring (16), one end of first spring (16) compresses first back-up ring (14), second fixator (9) with it is described
Be provided with the second back-up ring (17) between bonnet (2), bonnet (2) ring be circumferentially uniformly provided with it is some be provided with the second hole (18), it is described
Second spring (19) is provided with second hole (18), the second spring (19) pushes down second back-up ring (17).
3. ball valve according to claim 1, it is characterised in that first fixator (8) and the valve body (1) inwall it
Between sealed by graphite rope (20) and the first general stopper ring (21), the first general stopper ring (21) is locked by baffle ring (22), described
Sealed between second fixator (9) and the bonnet (2) by the second general stopper ring (23).
4. ball valve according to claim 1, it is characterised in that pass through bolt between the valve body (1) and the bonnet (2)
Fastening, and sealed with the second graphite gasket (28).
5. ball valve according to claim 1, it is characterised in that valve rod hole (102) inwall is stepped, the valve rod
(4) valve rod hole (102) is inserted, the valve rod (4) is sideways provided with the bulge loop (401) extended radially outwardly, the bulge loop
(401) axle sleeve (24) is provided between the valve rod hole (102) inwall, the bulge loop (401) is provided with thrust washer (25).
6. ball valve according to claim 1, it is characterised in that support (26) contact with the valve rod hole (102)
Face is sealed by the first graphite gasket (27), and the support (26) is fixed and by described first by bolt and the valve body (1)
Graphite gasket (27) is compressed.
7. ball valve according to claim 1, it is characterised in that support (26) upper end in the gap of valve rod (4) with setting
There are a filler packing ring (34) and filler group (35), be provided with gland (36) above filler group (35), the gland (36) is by the filler
Group (35) is compressed.
8. ball valve according to claim 1, it is characterised in that the valve body (1) is provided with stair-stepping pivot hole (103),
The pivot (5) inserts the pivot hole (103), and is sealed by the 3rd graphite gasket (29).
9. ball valve according to claim 1, it is characterised in that the pressure release plug screw (7) passes through with the relief hole (101)
4th graphite gasket (30) is sealed.
10. ball valve according to claim 1, it is characterised in that the top of the spheroid (3) is provided with square groove, the valve
The end of bar (4) is square, and the squared ends of the valve rod (4) are inserted in the square groove of the spheroid (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720226437.6U CN206617611U (en) | 2017-03-09 | 2017-03-09 | A kind of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720226437.6U CN206617611U (en) | 2017-03-09 | 2017-03-09 | A kind of ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206617611U true CN206617611U (en) | 2017-11-07 |
Family
ID=60232058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720226437.6U Active CN206617611U (en) | 2017-03-09 | 2017-03-09 | A kind of ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206617611U (en) |
-
2017
- 2017-03-09 CN CN201720226437.6U patent/CN206617611U/en active Active
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