CN208651686U - A kind of regulation ball valve - Google Patents
A kind of regulation ball valve Download PDFInfo
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- CN208651686U CN208651686U CN201821316518.6U CN201821316518U CN208651686U CN 208651686 U CN208651686 U CN 208651686U CN 201821316518 U CN201821316518 U CN 201821316518U CN 208651686 U CN208651686 U CN 208651686U
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- shaft hole
- valve
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Abstract
The utility model relates to a kind of regulation ball valves, including valve body, valve seat, sphere, valve rod, bracket, it is characterized by: regulating valve is arranged in the circular flow channel of sphere, the regulating valve includes a round flap, the circle flap is mounted in sphere circular flow channel, valve rod lower end passes through the axis hole of sphere upper end and round flap upper end key-slot cooperates and connects, and locating shaft is equipped between round flap lower end and sphere circular flow channel bottom；The axis hole of sphere upper end is made of upper shaft hole, central axis hole and lower shaft hole, wherein shaft hole diameter is greater than upper shaft hole diameter, upper shaft hole diameter is greater than lower axle bore dia, between valve rod periphery and upper shaft hole with key, slot, dynamic sealing cooperates between lower shaft hole, there is radial step on the valve rod in central axis hole, spring is set between the radial direction step and central axis hole bottom surface.Sphere and valve seat are without friction in flow adjustment process.Have the characteristics that Torque-adjusting is small, degree of regulation is high, long product lifecycle.
Description
Technical field
The utility model belongs to valve field, more particularly, to a kind of regulation ball valve.
Background technique
Existing ball valve mainly includes valve body, valve seat, sphere and upper valve rod, and sphere is placed in body cavity, be equipped in sphere with
The runner that body cavity communicates, valve seat and outer surface of spheroid complement each other to form sealing, and sphere is driven by valve rod and around stem shaft
Line makees 90 degree of rotary motions, realizes the open and close of sphere and valve seat, its shortcoming is that: when ball valve is used as flow is adjusted
When, multiple rotary sphere is needed, causes repeatedly to rub between sphere and valve seat, valve seat is easy by friction damage, service life
It is short；In addition during being adjusted by spinning ball, since the frictional force between sphere and valve seat is larger, valve when adjusting
Torque needed for bar is larger, can not be precisely controlled flow, and degree of regulation is low.
Summary of the invention
The purpose of this utility model is to provide that a kind of adjustings operational torque is small, adjusting for disadvantage of the existing technology
Precision height, adjustment process sealing surface of seat are without abrasion, regulation ball valve with long service life.
The technical solution of the utility model includes valve body, valve seat, sphere, valve rod, bracket, and upper end is equipped with connection in the middle part of valve body
Flange and packing groove, valve rod lower end are connect with sphere, and valve rod upper end passes through packing groove and is fixedly mounted on driving device on bracket
Connection, compresses installation filler by gland between packing groove and valve rod periphery, and sphere is placed in body cavity, is equipped with circle in sphere
Shape runner, in body cavity, valve seat is equipped with the sealing surface of seat that sealing is formed with the spherical surface of sphere for valve seat setting, and feature exists
In: in the circular flow channel of sphere regulating valve is set, which includes a round flap, which, which is mounted on sphere, justifies
In shape runner, valve rod lower end passes through the axis hole of sphere upper end and round flap upper end key-slot cooperates and connects, under round flap
Locating shaft is equipped between end and sphere circular flow channel bottom；The axis hole of sphere upper end is made of upper shaft hole, central axis hole and lower shaft hole,
Wherein shaft hole diameter is greater than upper shaft hole diameter, and upper shaft hole diameter is greater than lower axle bore dia, is formed with connection in the inner hole wall of upper shaft hole
The axial keyway of central axis hole, valve rod periphery be fixed with the mutually matched axial flat key of the axial keyway, outside valve rod lower end
Dynamic sealing cooperates between disc and lower shaft hole inner wall, has radial step on the valve rod in central axis hole, in the radial direction step
Spring is set between central axis hole bottom surface；Under spring extended state, the axial flat key on valve rod is located at upper shaft hole inner hole wall
In axial keyway, under spring-compressed state, the axial flat key on valve rod is located at central axis hole inner cavity, the axial flat key on valve rod
When in the axial keyway of upper shaft hole inner hole wall, round flap center line is mutually perpendicular to sphere circular flow channel center line.
Preferably, clearance fit between round flap periphery and sphere circular flow channel inner hole wall, above and below round flap
Axis hole is respectively set in both ends, and axial groove, valve rod lower end is arranged in lower end axis hole and the dynamic cooperation of locating shaft, the inner hole wall of upper end axis hole
Setting and the mutually matched axial bond of the axial groove.
Preferably, spring uses disc spring.
Preferably, thrust bearing is installed in the valve rod hole inner wall close to body cavity, valve rod is equipped with radial convex shoulder, the diameter
To convex shoulder under spring extended state with thrust bearing lower end face contact.
The utility model has the advantages that regulating valve is arranged in the circular flow channel of sphere, need to adjust stream in valve wide open
When amount, pressure valve rod makes spring-compressed, and the axial keyway that the axial flat key on valve rod is detached from upper shaft hole inner wall enters in central axis hole
Chamber is disconnected valve rod with sphere, and when rotary valve rod drives, and round flap rotation adjusts the circulating face of sphere circular flow channel
Product realizes the adjusting to flow, and sphere and valve seat are without friction in adjustment process.It is small with Torque-adjusting, degree of regulation is high, product
The features such as long service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
Regulation ball valve as shown in Figure 1, including valve body 1, valve seat 2, sphere 3, valve rod 6, bracket 9,1 middle part upper end of valve body are set
There are connecting flange and packing groove, 6 lower end of valve rod is connect with sphere 3, and 6 upper end of valve rod passes through packing groove and is fixedly mounted on bracket 9
On driving device connection, installation filler 7 is compressed by gland 8 between 6 periphery of packing groove and valve rod, sphere 3 is placed in valve body 1
Inner cavity, sphere 3 is interior to be equipped with circular flow channel, and for the setting of valve seat 2 in 1 inner cavity of valve body, valve seat 2, which is equipped with, forms sealing with the spherical surface of sphere 3
Sealing surface of seat；It is characterized by: regulating valve is arranged in the circular flow channel of sphere 3, which includes a round flap
5, which is mounted in the circular flow channel of sphere 3, and 3 upper end center of sphere is formed with the axis hole concentric with valve rod 6, valve rod 6
Lower end passes through 5 upper end key of the axis hole and round flap-slot mutual cooperation and connects, i.e., along its axis direction on 6 periphery of valve rod
The slot with the dynamic cooperation of key on valve rod 6 is arranged in the hole of round 5 upper end of flap, makes valve rod 6 on round flap 5 for set key
Axial in the hole at end to move, radially fixed connection, valve rod 6 can drive round flap 5 to rotate, can also be using in valve rod
Key on 6 lower end peripheries in 5 upper end hole of slot processed and round flap cooperates, round 5 lower end of flap and 3 circular flow channel of sphere
Locating shaft 4 is equipped between bottom, locating shaft 4 and valve rod 6 are concentric；The axis hole of 3 upper end of sphere is by upper shaft hole, central axis hole and lower shaft hole
Composition, axis bore dia are greater than upper shaft hole diameter, and upper shaft hole diameter is greater than lower axle bore dia, is formed with company in the inner hole wall of upper shaft hole
The axial keyway of logical central axis hole, 6 periphery of valve rod be fixed with the mutually matched axial flat key 10 of the axial keyway, make valve rod
6 can move axially in the axis hole of 3 upper end of sphere, radially fixed connection, between 6 lower end periphery of valve rod and lower shaft hole inner wall
Dynamic sealing cooperates, and has radial step on the valve rod 6 in central axis hole, which is equal to upper shaft hole
Spring 11 is arranged in radial difference between lower shaft hole between the radial direction step and central axis hole bottom surface；In 11 stretch-like of spring
Under state, the axial flat key 10 on valve rod 6 is located in the axial keyway of upper shaft hole inner hole wall, and sphere 3 and circle are driven when valve rod 6 rotates
Shape flap 5 rotates simultaneously, and under 11 compressive state of spring, the axial flat key on valve rod 6 is located at central axis hole inner cavity, and valve rod 6 rotates
When drive round flap 5 to rotate, and sphere 3 remains stationary, when carrying out flow adjusting, by driving device band after the pushing of valve rod 6
Ovable valve stem 6, round flap 5 rotate, and sphere 3 is shown in a fully open operation, and the axial flat key on valve rod 6 is located at upper shaft hole inner hole wall
Axial keyway in when, round 5 center line of flap is mutually perpendicular to 3 circular flow channel center line of sphere.
Clearance fit between 3 circular flow channel inner hole wall of round 5 periphery of flap and sphere, in round 5 upper and lower ends of flap
Axis hole, lower end axis hole and the dynamic cooperation of locating shaft 4, the inner hole wall setting axial groove of upper end axis hole and 6 lower end of valve rod is respectively set
Axial bond cooperate.
Spring 11 uses disc spring, and upward thrust is generated to valve rod 6.
Thrust bearing 13 is installed in the valve rod hole inner wall close to 1 inner cavity of valve body, valve rod is equipped with radial convex shoulder 12, the radial direction
Convex shoulder 12, with 13 lower end face contact of thrust bearing, prevents valve rod 6 from being released upwards by when pressure medium under 11 extended state of spring.
Claims (4)
1. a kind of regulation ball valve, including valve body (1), valve seat (2), sphere (3), valve rod (6), bracket (9), sphere (3) is interior to be equipped with
Circular flow channel, valve seat (2) are equipped with the sealing surface of seat that sealing is formed with the spherical surface of sphere (3)；It is characterized by: in sphere (3)
Circular flow channel in regulating valve is set, which includes a round flap (5), which is mounted on sphere (3)
In circular flow channel, sphere (3) upper end center is formed with the axis hole concentric with valve rod (6), and valve rod (6) lower end passes through the axis hole and circle
Flap (5) upper end key-slot, which cooperates, to be connected, and positioning is equipped between round flap (5) lower end and sphere (3) circular flow channel bottom
Axis (4), locating shaft (4) and valve rod (6) are concentric；The axis hole of sphere (3) upper end is made of upper shaft hole, central axis hole and lower shaft hole, in
Shaft hole diameter is greater than upper shaft hole diameter, and upper shaft hole diameter is greater than lower axle bore dia, is formed with connection axis in the inner hole wall of upper shaft hole
The axial keyway in hole, valve rod (6) periphery are fixed with and the mutually matched axial flat key (10) of the axial keyway, valve rod (6)
Dynamic sealing cooperates between lower end periphery and lower shaft hole inner wall, has radial step, the diameter on the valve rod (6) in central axis hole
Be equal to radial difference between upper shaft hole and lower shaft hole to step radial direction mesa width, the radial direction step and central axis hole bottom surface it
Between be arranged spring (11)；Under spring (11) extended state, the axial flat key (10) on valve rod (6) is located at upper shaft hole inner hole wall
In axial keyway, under spring (11) compressive state, the axial flat key on valve rod (6) is located at central axis hole inner cavity, on valve rod (6)
Axial flat key when being located in the axial keyway of upper shaft hole inner hole wall, in round flap (5) center line and sphere (3) circular flow channel
Heart line is mutually perpendicular to.
2. regulation ball valve according to claim 1, it is characterized in that round flap (5) periphery and sphere (3) circular flow channel
Axis hole is respectively set in round flap (5) upper and lower ends in clearance fit between inner hole wall, and lower end axis hole and locating shaft (4) are dynamic
Cooperation, the inner hole wall setting axial groove of upper end axis hole and the axial bond of valve rod (6) lower end cooperate.
3. regulation ball valve according to claim 1 or 2, it is characterized in that spring (11) uses disc spring.
4. regulation ball valve according to claim 1 or 2, it is characterized in that pacifying in the valve rod hole inner wall close to valve body (1) inner cavity
Fill thrust bearing (13), valve rod (6) is equipped with radial convex shoulder (12), the radial direction convex shoulder (12) under spring (11) extended state and
Thrust bearing (13) lower end face contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821316518.6U CN208651686U (en) | 2018-08-15 | 2018-08-15 | A kind of regulation ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821316518.6U CN208651686U (en) | 2018-08-15 | 2018-08-15 | A kind of regulation ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208651686U true CN208651686U (en) | 2019-03-26 |
Family
ID=65789812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821316518.6U Active CN208651686U (en) | 2018-08-15 | 2018-08-15 | A kind of regulation ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208651686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679258A (en) * | 2018-08-15 | 2018-10-19 | 永阀门集团有限公司 | A kind of regulation ball valve |
-
2018
- 2018-08-15 CN CN201821316518.6U patent/CN208651686U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679258A (en) * | 2018-08-15 | 2018-10-19 | 永阀门集团有限公司 | A kind of regulation ball valve |
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