CN208687002U - A kind of orbit ball valve with spiral valve rod - Google Patents
A kind of orbit ball valve with spiral valve rod Download PDFInfo
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- CN208687002U CN208687002U CN201821350409.6U CN201821350409U CN208687002U CN 208687002 U CN208687002 U CN 208687002U CN 201821350409 U CN201821350409 U CN 201821350409U CN 208687002 U CN208687002 U CN 208687002U
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Abstract
The utility model relates to a kind of orbit ball valves with spiral valve rod, comprising: valve body, sphere, valve component, valve deck, bearing ball, valve rod and pneumatic actuator；Sphere is assemblied in valve body, and sphere lower part is divided into cylindrical shape and is placed in bottom cover, is tightly connected on the right side of sphere with valve component；Valve deck is connect by the symmetrical bolt in two sides with valve body；Valve rod one end connects sphere, and the other end passes through bracket and connects pneumatic actuator；There are two bearing ball settings, is assemblied on valve deck, and cooperates with valve rod, realizes straight line and the rotary motion of valve rod.This structure reduces the abrasion of guide frame, is effectively prevented from stuck phenomenon, also can guarantee the good seal at valve seat in alternating temperature.
Description
Technical field
The utility model relates to a kind of valve technology field more particularly to a kind of orbit ball valves with spiral valve rod.
Background technique
Orbit ball valve is a kind of ball valve with special construction, since it is opened under the very high or very low bad working environments of temperature
Process is closed without friction, and still ensures that the reliability of sealing, therefore in chemical field, is especially switched fast, just in needs
The occasion of warm alternation has been more and more widely used.
The working principle of existing orbit ball valve is: valve rod rises under the action of handwheel or descending motion, on valve rod
Guide groove and guiding pin contacts carry out 90 degree of rotary motions after valve rod carries out one section of linear motion.In linear motion, valve
The lozenges of bar lower end pushes sphere to realize close to valve seat and seals, or is detached from valve seat and opens valve；Then guide groove and leading
To under the action of pin, valve rod drives sphere to make 90 degree of rotations.Opening for valve is realized by the raising and lowering movement of valve rod
It opens and closing process, when the rotation of sphere and valve seat is without friction.
The main problem of the prior art is: in rotary course, guide groove is larger to the shearing force of guide pin, cause pin and
There is abrasion deformation in slot, and so as to cause guide pin deformation failure, then the problem of stuck or even fracture occurs in valve rod, reduces
The service life of ball valve.In addition, sealing surface can generate small temperature deformation under alternating temperature operating condition, so as to cause poorly sealed,
It leaks.
In view of above-mentioned existing defect, the present inventor is based on being engaged in such product design manufacture practical experience abundant for many years
And professional knowledge, and cooperate the utilization of scientific principle, it is subject to research and innovation, actively to found a kind of track ball with spiral valve rod
Valve makes it with more practicability.By constantly studying, designing, and studied repeatedly sample and improve after, create finally really
The utility model having practical value.
Summary of the invention
In order to solve the above technical problems, the purpose of the utility model is to provide a kind of orbit ball valve with spiral valve rod,
It is co-structured rationally, abrasion is small, service life is high, the novel orbital ball valve of good seal performance.
It the purpose of this utility model and solves its technical problem and adopts the following technical solutions to realize.
A kind of orbit ball valve with spiral valve rod, comprising: valve body, sphere, valve component, valve deck, bearing ball, valve rod
And pneumatic actuator；
The sphere is assemblied in valve body, and the sphere lower part is divided into cylindrical shape and is placed in bottom cover, the sphere
Right side and the valve component are tightly connected；
The valve deck is connect by the symmetrical bolt in two sides with the valve body；
Described valve rod one end connects sphere, and the other end passes through bracket and connects the pneumatic actuator；
There are two the bearing rolling settings, is assemblied on the valve deck, and cooperates with the valve rod, realizes the valve rod
Straight line and rotary motion.
It preferably, further include filler, filler pressing sleeve and hold-down grid, the filler setting is described on the valve rod top
Filler pressing sleeve is arranged above the filler, and the hold-down grid is arranged above the filler pressing sleeve.
Preferably, the bearing ball is symmetrical arranged, and has certain fit-up gap between the valve rod.
It preferably, further include pressing device, there are four the pressing device settings, is symmetricly set on the bearing rolling two-by-two
On the outside of pearl, and limit between the valve rod and the valve deck.
Preferably, the valve component includes valve seat outer ring, valve seat inner ring, spring ring and valve base sealing ring, the spring
Circle is placed between the valve base sealing ring and the valve seat inner ring.
Preferably, the valve rod middle section is provided with symmetrical planar structure, and the planar structure is matched with the bearing ball
It closes, the planar structure middle section is the helicoid of 90 degree of torsions.
Preferably, the valve rod lower end is lozenges, and the lozenges is connect with the planar structure, is placed in the sphere
It is intermediate and protrude into inside spherical cavity.
It preferably, further include rollers on symmetrically arranged two lower rollers and two, the lower roller and the upper roller
Setting in the sphere, and is engaged by clamping with the valve rod lower end, for driving the sphere to rotate when the stem movement,
Complete the opening and closing process of the ball valve.
By adopting the above technical scheme, it can be realized following technical effect:
1, traditional spiral guide pin is replaced with bearing ball, and sliding friction is converted to rolling friction, reduces valve rod
Abrasion, extends the service life of ball valve, compensates for the defect of conventional rails ball valve guide pin and guide groove failure；
2, the planar structure in orbit ball valve valve rod middle section and the cooperation of helicoid and bearing ball, keep stem movement more flat
Surely, while the abrasion deformation between valve rod and bearing ball is also reduced；
3, there are certain fit clearances between bearing ball and valve rod, under the premise of guaranteeing normal opening-closing process, energy
Enough prevent the stuck situation of valve rod；
4, the sealing at valve component is compensated using spring ring, avoids producing between sphere and valve component under alternating temperature operating condition
Leakage caused by raw inevitably tiny deformation, ensure that the reliability of sealing.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Detailed description of the invention
Fig. 1 is a kind of orbit ball valve structural schematic diagram with spiral valve rod of the utility model；
Fig. 2 is a kind of valve component schematic diagram of the orbit ball valve with spiral valve rod of the utility model；
Appended drawing reference: valve body 1, sphere 2, lower roller 3, upper roller 4, valve component 5, valve seat outer ring 51, valve seat inner ring 52,
Spring ring 53, valve base sealing ring 54, valve deck 6, bearing ball 7, pressing device 8, valve rod 9, planar structure 91, helicoid 911, wedge
Shape face 92, filler 10, filler pressing sleeve 11, hold-down grid 12, filler support 13, pneumatic actuator 14.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Referring to Fig. 1, the utility model discloses a kind of orbit ball valves with spiral valve rod, comprising: valve body 1, sphere 2,
Valve component 5, valve deck 6, bearing ball 7, valve rod 9 and pneumatic actuator 14；Sphere 2 is assemblied in valve body 1, the lower part of sphere 2
It for cylindrical shape and is placed in bottom cover, 2 right side of sphere is tightly connected with valve component 5；Valve deck 6 by the symmetrical bolt in two sides with
Valve body 1 connects；9 one end of valve rod connects sphere 2, and the other end passes through bracket 13 and connects pneumatic actuator 14；Bearing ball 7 is provided with
It two, is assemblied on valve deck 6, and cooperates with valve rod 9, realize straight line and the rotary motion of valve rod 9.
Traditional spiral guide pin is replaced with bearing ball 7 in the application, sliding friction is converted to rolling friction, is reduced
The abrasion of valve rod 9 extends the service life of ball valve, compensates for the defect of conventional rails ball valve guide pin and guide groove failure.
It as a kind of perferred technical scheme, further include filler 10, filler pressing sleeve 11 and hold-down grid 12, filler 10 is arranged
On 9 top of valve rod, filler pressing sleeve 11 is arranged above filler 10, and hold-down grid 12 is arranged above filler pressing sleeve 11.
As a kind of perferred technical scheme, bearing ball 7 is symmetrical arranged, and has certain assembly between valve rod 9
Gap.There are certain fit clearances between bearing ball and valve rod can prevent under the premise of guaranteeing normal opening-closing process
There is the stuck situation of valve rod.
It as a kind of perferred technical scheme, further include pressing device 8, there are four the settings of pressing device 8, symmetrically sets two-by-two
It sets in 7 outside of bearing ball, and limits between valve rod 9 and valve deck 6.
As a kind of perferred technical scheme, valve component 5 includes valve seat outer ring 51, valve seat inner ring 52,53 and of spring ring
Valve base sealing ring 54, spring ring 53 are placed between valve base sealing ring 54 and valve seat inner ring 52.In the biggish operating condition of temperature change
Under, spring ring 53 is had certain pretightning force by compression, may further ensure that good seal when temperature change is larger.Valve
Sealing at holder assembly 5 is compensated using spring ring 53, and sphere 2 and valve component 5 under alternating temperature operating condition is avoided to generate unavoidably
Tiny deformation caused by leakage, ensure that the reliability of sealing.
As a kind of perferred technical scheme, 9 middle section of valve rod is provided with symmetrical planar structure 91, planar structure 91 and axis
The cooperation of ball 7 is held, 91 middle section of planar structure is the helicoid 911 of 90 degree of torsions.The planar structure in 9 middle section of orbit ball valve valve rod
91 and helicoid 911 and bearing ball 7 cooperate, keep the movement of valve rod 9 more steady, while also reducing valve rod 9 and bearing rolling
Abrasion deformation between pearl 7.
As a kind of perferred technical scheme, 9 lower end of valve rod is lozenges 92, and lozenges 92 is connect with planar structure 91,
It is placed among sphere 2 and protrudes into inside spherical cavity.
It as a kind of perferred technical scheme, further include symmetrically arranged two lower rollers 3 and two upper rollers 4, lower rolling
Column 3 and upper roller 4 are arranged in sphere 2, and are engaged by clamping with 9 lower end of valve rod, drive sphere 2 to rotate when moving for valve rod 9,
Complete the opening and closing process of ball valve.
When ball valve is opened, risen by pneumatic actuator 14 with ovable valve stem 9, the lozenges of 9 lower end of valve rod pushes sphere 2 de-
From valve component 5, when bearing ball 7 is contacted with valve rod 9 and is cooperated with the helicoid of valve rod 9 911 so that valve rod 9 starts to carry out
Rotation rises, and then 9 lower end of valve rod drives sphere 2 to rotate by upper roller 4 and lower roller 3, until sphere 2 rotates 90
Valve opening operation is completed after degree.
When ball valve is closed, declined by pneumatic actuator 14 with ovable valve stem 9, the helicoid 911 of bearing ball 7 and valve rod 9
Rotary motion is realized in cooperation, and 9 lower end of valve rod drives sphere 2 to rotate by upper roller 4 and lower roller 3, and sphere 2 is in closing shape
State, valve rod 9 continues straight line decline later, and 9 lower end lozenges 92 of valve rod pushes sphere 2 to be close to the guarantee sealing of valve component 5, works as pressure
When tight valve component 5, the spring ring 53 in original length is compacted have certain pretightning force, the bullet in alternating temperature originally
The pretightning force that spring coil 53 provides can compensate the micro-strain bring seal clearance due to structure, ensure that the reliable of sealing
Property.
The above is only the preferred embodiment of the utility model, is not intended to limit the utility model, it is noted that
For those skilled in the art, without deviating from the technical principle of the utility model, it can also do
Several improvements and modifications out, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of orbit ball valve with spiral valve rod characterized by comprising valve body (1), sphere (2), valve component (5),
Valve deck (6), bearing ball (7), valve rod (9) and pneumatic actuator (14)；
The sphere (2) is assemblied in valve body (1), and sphere (2) lower part is divided into cylindrical shape and is placed in bottom cover, described
It is tightly connected on the right side of sphere (2) with the valve component (5)；
The valve deck (6) is connect by the symmetrical bolt in two sides with the valve body (1)；
Described valve rod (9) one end connects sphere (2), and the other end passes through bracket (13) and connects the pneumatic actuator (14)；
There are two bearing ball (7) settings, is assemblied on the valve deck (6), and cooperates with the valve rod (9), realizes institute
State straight line and the rotary motion of valve rod (9).
2. the orbit ball valve according to claim 1 with spiral valve rod, which is characterized in that further include filler (10), fill out
Expect pressing sleeve (11) and hold-down grid (12), the filler (10) is arranged on the valve rod (9) top, and the filler pressing sleeve (11) sets
It sets above the filler (10), hold-down grid (12) setting is above the filler pressing sleeve (11).
3. the orbit ball valve according to claim 1 with spiral valve rod, which is characterized in that the bearing ball (7) is right
Claim setting, and there is certain fit-up gap between the valve rod (9).
4. the orbit ball valve according to claim 1 with spiral valve rod, which is characterized in that it further include pressing device (8),
There are four pressing device (8) settings, is symmetricly set on the outside of the bearing ball (7) two-by-two, and limit in the valve rod
(9) between the valve deck (6).
5. the orbit ball valve according to claim 1 with spiral valve rod, which is characterized in that valve component (5) packet
Valve seat outer ring (51), valve seat inner ring (52), spring ring (53) and valve base sealing ring (54) are included, the spring ring (53) is placed in institute
It states between valve base sealing ring (54) and the valve seat inner ring (52).
6. the orbit ball valve according to claim 1 with spiral valve rod, which is characterized in that valve rod (9) middle section is set
It is equipped with symmetrical planar structure (91), the planar structure (91) and the bearing ball (7) cooperate, the planar structure (91)
Middle section is the helicoid (911) of 90 degree of torsions.
7. the orbit ball valve according to claim 6 with spiral valve rod, which is characterized in that valve rod (9) lower end is
Lozenges (92), the lozenges (92) connect with the planar structure (91), are placed among the sphere (2) and protrude into spherical cavity
It is internal.
8. the orbit ball valve according to claim 1 with spiral valve rod, which is characterized in that further include symmetrically arranged two
A lower roller (3) and two are upper roller (4), the lower roller (3) and the upper roller (4) setting in the sphere (2), and
It is engaged by clamping with the valve rod (9) lower end, for driving the sphere (2) to rotate when the valve rod (9) movement, completes the ball
The opening and closing process of valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821350409.6U CN208687002U (en) | 2018-08-21 | 2018-08-21 | A kind of orbit ball valve with spiral valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821350409.6U CN208687002U (en) | 2018-08-21 | 2018-08-21 | A kind of orbit ball valve with spiral valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208687002U true CN208687002U (en) | 2019-04-02 |
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ID=65886295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821350409.6U Active CN208687002U (en) | 2018-08-21 | 2018-08-21 | A kind of orbit ball valve with spiral valve rod |
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| Country | Link |
|---|---|
| CN (1) | CN208687002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799539A (en) * | 2018-08-21 | 2018-11-13 | 江苏亿阀股份有限公司 | A kind of orbit ball valve with spiral valve rod |
-
2018
- 2018-08-21 CN CN201821350409.6U patent/CN208687002U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799539A (en) * | 2018-08-21 | 2018-11-13 | 江苏亿阀股份有限公司 | A kind of orbit ball valve with spiral valve rod |
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