CN205956433U - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN205956433U CN205956433U CN201620857903.6U CN201620857903U CN205956433U CN 205956433 U CN205956433 U CN 205956433U CN 201620857903 U CN201620857903 U CN 201620857903U CN 205956433 U CN205956433 U CN 205956433U
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- China
- Prior art keywords
- valve
- valve rod
- ball
- stop component
- bonnet
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- 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.)
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Abstract
The utility model discloses a ball valve, including the valve body, be located the case ball of valve body inner chamber, the drive the case ball rotates with control the valve rod of ball valve aperture, the dustcoat the valve rod and with a valve body end screw thread connection's valve cap, the quilt the valve cap drives and axial displacement's locking parts, still include with the locking parts support to the spring of valve cap, the valve cap drives locking parts axial move down with the valve body cooperation realizes valve rod locking is in preset position. This scheme, adjustment be during valve rod positioning or during maintenance, only needs the loading valve cap can to can simplify the loading and unloading capacity, reduce the maintenance work step, and can avoid the locking parts to lose or forget to install locking parts phenomenon taking place.
Description
Technical field
The utility model is related to valve body technical field and in particular to a kind of ball valve.
Background technology
Ball valve, as valve switch element, is widely used in refrigeration system based on its energy-efficient advantage, right
Refrigerant plays the effect being switched off and on.
Fig. 1 is a kind of structural representation at typical ball valve bonnet position；Fig. 2 is that the structure after removing bonnet in Fig. 1 is shown
It is intended to.
As shown in figure 1, this ball valve includes valve ball 01, the valve body 02 being placed in valve base cavity, in valve rod 06 insertion valve body 02,
And driving the valve ball 01 positioned at valve body 02 inner chamber to rotate, valve ball 01 has through hole, and valve rod 06 drives valve ball 01 to rotate and makes
When through hole connects the import and export of valve body 02, refrigerant can pass through, conversely, then refrigerant is cut off.
As shown in Fig. 2 being inserted with alignment pin 07 in valve rod 06, the upper surface of valve body 02 is provided with two positioning boss 2a, valve
When bar 06 rotates, alignment pin 07 can only run between two positioning boss 2a, thus limiting the slewing area of valve rod 06, this turn
Dynamic range set is 90 degree.When valve rod 06 turns to alignment pin 07 and is in position shown in Fig. 2, valve port standard-sized sheet, valve rod 06 inverse time
After pin rotates 90 degree, valve port is fully closed, then realize being switched off and on of the internal refrigerant of ball valve.
However, in the presence of system pressure (the particularly business PC high-pressure system such as CO2 system), due to the valve rod of ball valve
06 with valve ball 01 fit clearance and form design deflection angle, then product can cause the automatic valve closing of valve ball 01 because of fluid impact.
The scheme in applicant's past is to add retainer on ball valve, and retainer takes the structure of stopper ring, and stopper ring has
There are two position-limit foots extending downwardly.After adjusting valve rod 06 position, can be by stopper ring overcoat to valve rod 06, and and valve rod
06 forms circumferential clamping, and two position-limit foots of stopper ring contact at positioning boss 2a respectively.As shown in Fig. 2 valve rod 06 overcoat stops
After moving-coil, the position-limit foot of stopper ring can contact at the positioning boss 2a side wall in left side, then valve rod 06 cannot rotate backward again, thus
Reach the effect of positioning valve rod 06, it is to avoid valve ball 01 automatic valve closing under fluid impact.
Although, stopper ring serves the effect of stop positioning, still there are following problems：
During system maintenance, need first to back out bonnet 08, then take off stopper ring, then close ball with spanner Operating valve rod 06
Valve, then maintenance activity is loaded down with trivial details, and stopper ring is easily lost, and also easily forgets to be loaded on stopper ring, leads to stopping effect no
Method plays.
In view of this, how above-mentioned ball valve is improved further, to simplify operation, prevent the stop component on ball valve from losing
With forget install, be those skilled in the art's technical problem urgently to be resolved hurrily.
Utility model content
For solving above-mentioned technical problem, the utility model provides a kind of ball valve, and this ball valve can simplify loading and unloading capacity, reduces
Operation work step, and can avoid forgetting to fill stop component or avoid stop component to lose.
The utility model discloses a kind of ball valve, including valve body, positioned at the valve ball of described body cavity, drive described valve
Core ball rotates to control the valve rod of described ball valve aperture, valve rod described in outer cover the bonnet being connected with described valve body threaded one end,
The stop component being driven and moving axially by described bonnet, also include by described stop component against described bonnet spring, institute
State bonnet drive described stop component move axially downwards with described valve body cooperation realize described valve stem jam in precalculated position.
Alternatively, described valve rod is provided near the side of described bonnet and can limit the described stop component described valve rod of disengaging
Spacer pin.
Alternatively, described valve rod is arranged with and can limit the back-up ring that described stop component departs from described valve rod.
Alternatively, described stop component is made up of stamping material, including the stopper ring being set in described stem outer circumference, described
Stopper ring includes the position-limit foot enclosing body and being bent to form on described circle body, described position-limit foot and described valve body cooperation limit
Make described valve rod to circumferentially rotate, described circle body also includes hollow bulb, described hollow bulb and described valve for the insertion of described valve rod
The side shape of the close described bonnet of bar is consistent, and described stopper ring is coordinated for keyway with described valve rod.
Alternatively, described valve rod is provided with first step portion, and described spring one end abuts described stop component, and the other end abuts
Described first step portion.
Alternatively, described valve body is provided with a pair of projections, and described spring one end abuts described stop component, and the other end abuts institute
State boss.
This programme, when needing to adjust stem position or need to carry out maintenance activity, only need to load and unload bonnet, need not take
Lower stop component, such that it is able to simplify loading and unloading capacity, reduces operation work step, and can avoid forgetting to fill stop component or avoid stop
Loss of parts.Further, also stop component can be limited on valve rod, further to prevent stop component from losing or to forget to pacify
The phenomenon of dress stop component occurs.
Brief description
Fig. 1 is a kind of structural representation at typical ball valve bonnet position；
Fig. 2 is the stereogram after removing bonnet in Fig. 1；
Fig. 3 is the structural representation of the utility model provided ball valve first embodiment；
Fig. 4 is the stereogram after the valve rod of ball valve, alignment pin and valve body cooperation in Fig. 3；
Fig. 5 is the partial sectional view of ball valve in Fig. 3；
Fig. 6 is the stereogram of stop component in Fig. 5；
Fig. 7 is that in Fig. 3, ball valve removes the partial perspective view after cap valve；
Fig. 8 is the partial perspective view of valve rod in Fig. 7；
Fig. 9 is that second embodiment ball valve provided by the utility model removes the partial perspective view after cap valve.
Description of reference numerals in Fig. 1-2：
01- valve ball, 02- valve body, 2a- positioning boss, 03-O type circle, 04- sealing ring, 05-O type circle, 06-
Valve rod, 07- alignment pin, 08- bonnet；
Description of reference numerals in Fig. 3-9：
1- bonnet, 11- internal thread, 12- second step portion, 121- second step face；
2- spacer pin, 2 '-back-up ring；
3- stopper ring, 31- circle body, 311- upper surface, 312- lower surface, 313- hollow bulb, 32- position-limit foot；
4- valve rod, 41- first step portion；
5- spring；
6- alignment pin, 7-O type circle；
8- valve body, 8a- first positioning boss, 8a '-the second positioning boss, 8a1- first locating surface, 8a2- second
Locating surface, 8a ' 1- the 3rd locating surface, 8a ' 2- the 4th locating surface, 81- external screw thread；
9- valve ball
Specific embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with the accompanying drawings and tool
The utility model is described in further detail for body embodiment.
Explanation first, the upper and lower grade noun of locality herein is with Figure of description as visual angle, and purpose is easy to explanation originally
The technical scheme of utility model, and should not be understood as the restriction to the utility model ball valve protection structure.
Fig. 3 is the structural representation of the utility model provided ball valve first embodiment；Fig. 4 be Fig. 3 in ball valve valve rod,
Stereogram after alignment pin and valve body cooperation；Fig. 5 is the partial sectional view of ball valve in Fig. 3；Fig. 6 is the vertical of stop component in Fig. 5
Body figure；Fig. 7 is that in Fig. 3, ball valve removes the partial perspective view after cap valve；Fig. 8 is the partial perspective view of valve rod in Fig. 7.
Ball valve in the present embodiment, as shown in Figure 3 and Figure 4, including valve body 8, is arranged at the valve ball 9 of valve body 8 inner chamber, valve element
Ball 9 drives rotation by valve rod 4.It is covered with bonnet 1 in the outside of valve rod 4, the lower end of bonnet 1 is connected with the threaded upper ends of valve body 8.
Specifically, bonnet 1 is provided with internal thread 11, and valve body 8 is provided with corresponding external screw thread 81, by internal thread 11 and external screw thread 81
Screw togather, realize the connection of bonnet 1 and valve body 8.The side of the close valve body 8 of valve rod 4 is inserted with alignment pin 6, the upper end of valve body 8
Face is additionally provided with two positioning boss, i.e. the first positioning boss 8a and the second positioning boss 8a '.First positioning boss 8a has first
Locating surface 8a1 and the second locating surface 8a2, the second positioning boss 8a ' have the 3rd locating surface 8a ' 1 and the 4th locating surface 8a ' 2.Valve
When bar 4 rotates, alignment pin 6 can only run on two positioning boss 8a, 8a ' between, thus limiting the slewing area of valve rod 4, with
Realize ball valve standard-sized sheet and fully closed control.This slewing area of in figure is set as 90 degree.If the two ends when alignment pin 6 are respectively with second
When locating surface 8a2 and the 3rd locating surface 8a ' 1 abuts, valve is shown in a fully open operation；When rotary valve rod 4, the two ends of alignment pin 6 are made to divide
When not abutting with the first locating surface 8a1 and the 4th locating surface 8a ' 2, valve is in full-shut position.
When ball valve is in fully open position, in order to prevent ball valve from causing valve-closing because of fluid impact, as Fig. 4-Fig. 8 institute
Show, this ball valve is additionally provided with axially movable stop component (axial direction herein is the axial direction of valve rod 4), and stop component is supported
Spring 5 to bonnet 1.Specifically, bonnet 1 can drive stop component moving axially downwards along valve rod 4, make stop component with
Valve body 8 cooperation is realized for valve rod 4 being stopped at precalculated position.Stop component can be made especially by impact style.The present embodiment
In, stop component is specially stopper ring 3.Stopper ring 3 includes substantially a ring-shaped circle body 31 and by downward on circle body 31
A pair of the position-limit foot 32 being bent to form, circle body 31 includes upper surface 311, lower surface 312 and the hollow bulb for valve rod 4 insertion
313, the shape of hollow bulb 313 is consistent with the side shape of the close bonnet 1 of valve rod 4, and stopper ring 3 can be coated at valve rod 4 simultaneously
With respect to the circumferential rotation stop of valve rod 4.Preferably, stopper ring 3 and valve rod 4 coordinate for keyway, and under keyway mated condition, both cooperations are good
Good, the harmful effect such as inclination without spin.
Valve rod 4 is provided with first step portion 41, and positioned at the top of alignment pin 6, (top herein refers in first step portion 41
First step portion 41 compared to alignment pin 6 closer to valve rod 4 upper end), spring 5 is set on valve rod 4, and one end of spring 5 is supported
Meet the first step portion 41 of valve rod 4, the other end abuts the lower surface 312 of the circle body 31 of stopper ring 3.
It is provided with second step portion 12, second step portion 12 is provided with step surface 121 in bonnet 1.Internal thread 11 due to bonnet 1
Screw togather with the external screw thread 81 of valve body 8, when rotation bonnet 1, make the step surface 121 in the second step portion 12 of bonnet 1 abut stopper ring 3
Circle body 31 upper surface 311 after, stopper ring 3 is driven by bonnet 1 and together moves axially downwards, then stopper ring 3 compression spring
5, so that a pair of position-limit foot 32 is determined with the first locating surface 8a1 and second with the first positioning boss 8a respectively when stopper ring 3 moves to
When the 4th locating surface 8a ' 2 of position boss 8a ' conflicts, due to now alignment pin 6 two ends respectively with the first positioning boss second
The 3rd locating surface 8a ' 1 of locating surface 8a2 and the second positioning boss 8a ' conflicts, and therefore, now valve rod 4 position is locked, and valve is protected
Hold full-gear (it is of course also possible to being set to now valve to be in full-shut position), so, efficiently avoid ball valve because by fluid
Impact causes valve-closing.Now, bonnet 1 is tight condition.
The ball valve of the present embodiment, when needing to adjust valve element ball position or dismounting maintenance, unloads bonnet 1, with bonnet 1
Gradually turn on, stopper ring 3 lifting axially upwards under the spring-force driven dual of spring 5, when a pair of position-limit foot 32 of stopper ring 3 moves
To exceeding positioning boss 8a, 8a ' when, valve rod 4 be in can circumferential free rotation state, now rotation valve rod is to needing the position to be
Can.In the process, only need to unload bonnet, stopper ring need not be taken off, such that it is able to simplify loading and unloading capacity, reduce operation work step,
And can avoid forgetting to fill stopper ring or avoid stopper ring to lose.
Further, lead to stopper ring 3 to be lost to be more reliably prevented from stopper ring 3 disengaging valve rod 4 or forget to install,
As shown in fig. 7, the ball valve of the present embodiment, near the side of bonnet 1 on valve rod 4, it is provided with and prevents stopper ring 3 from departing from valve rod 4
Spacer pin 2.That is, when stopper ring 3 circle body 31 upper surface 311 against spacer pin 2 when, stopper ring 3 is in the limit of spacer pin 2
Under the effect of position, no longer carry out moved axially upward.Now stopper ring 3 is limited on valve rod 4.It will be apparent that spacer pin 2 can be
Cylinder, cuboid, square etc., certainly, as long as its shape enables the utility model purpose.
The ball valve of the present embodiment, when needing to adjust stem position or need to carry out maintenance activity, only need to load and unload bonnet is
Can, stopper ring need not be taken off, such that it is able to simplify loading and unloading capacity, reduce operation work step, and can avoid forgetting filling stop component or
Stopper ring is avoided to lose.Further, also stopper ring can be limited on valve rod, further to prevent stopper ring from losing or to forget
The phenomenon installing stopper ring occurs.
Fig. 9 is that second embodiment ball valve provided by the utility model removes the partial perspective view after cap valve.
It is not repeated with identical content in the first specific embodiment in the present embodiment to describe, mainly to the present embodiment and the
The difference of one specific embodiment illustrates.
As shown in figure 9, differring primarily in that of ball valve eliminates limit in the ball valve of the present embodiment and the first specific embodiment
The design of position pin, realizes preventing stopper ring 3 from departing from valve rod 4 by the way of back-up ring 2 ' and valve rod 4 clamping.Specifically, Ke Yi
One draw-in groove or design one stage portion are opened up on valve rod 4, makes back-up ring 2 ' and draw-in groove or stage portion clamping.It will be apparent that this programme also may be used
To be reliably prevented stopper ring loss or to avoid forgetting to fill stopper ring.Certainly, those skilled in the art can be as needed to back-up ring
Concrete shape make design for change, as long as being capable of the utility model purpose.
It should be noted that technical solutions of the utility model can also carry out other design for change, as can be to spring 5
Abutted position carries out design for change, by a pair of positioning boss 8a, 8a of valve body 8 ' upper edge be designed higher than the first of valve rod 4
Stage portion 41 (herein higher than referring on the axial direction of valve rod 4, positioning boss 8a, 8a ' upper edge compared to First
Rank portion 41 is closer to the upper end of valve rod 4), now spring 5 one end abuts a pair of positioning boss 8a, 8a of valve body 8 ', and the other end supports
Connect the lower surface 312 of the circle body 31 of stopper ring 3.For another example, the length of bonnet 1 internal thread 11 is not restricted, as long as enabling this
Utility model purpose.For another example, stop component can be limited by hoodle limit method and depart from valve rod 4.
The above is only preferred embodiment of the present utility model it is noted that ordinary skill people for the art
For member, on the premise of without departing from the utility model principle, some improvements and modifications can also be made, these improvements and modifications
Also should be regarded as protection domain of the present utility model.
Claims (6)
1. a kind of ball valve, including valve body (8), positioned at the valve ball (9) of described valve body (8) inner chamber, drives described valve ball (9) to turn
Dynamic valve rod (4), valve rod (4) described in outer cover the valve being connected with described valve body (8) threaded one end with the described ball valve aperture of control
Cap (1), the stop component being driven and moved axially by described bonnet (1) is it is characterised in that also include supporting described stop component
To the spring (5) of described bonnet (1), described bonnet (1) the described stop component of drive moves axially downwards is joined with described valve body (8)
Conjunction is realized described valve rod (4) and is stopped at precalculated position.
2. ball valve as claimed in claim 1 is it is characterised in that the upper side near described bonnet (1) of described valve rod (4) is provided with
The spacer pin (2) that described stop component departs from described valve rod (4) can be limited.
3. ball valve as claimed in claim 1 can limit described stop component it is characterised in that being arranged with described valve rod (4)
Depart from the back-up ring (2 ') of described valve rod (4).
4. the ball valve as described in any one of Claims 2 or 3, it is characterised in that described stop component is made up of stamping material, wraps
Include the stopper ring (3) being set in described valve rod (4) periphery, described stopper ring (3) includes circle body (31) and encloses this described
The position-limit foot (32) being bent to form on body (31), described position-limit foot (32) limits described valve rod (4) week with described valve body (8) cooperation
To rotation, described circle body (31) also includes the hollow bulb (313) inserting for described valve rod (4), described hollow bulb (313) and institute
The side shape stating the close described bonnet (1) of valve rod (4) is consistent, and described stopper ring (3) and described valve rod (4) are joined for keyway
Close.
5. the ball valve as described in any one of claim 1-3 is it is characterised in that described valve rod (4) is provided with first step portion
(41), described spring (5) one end abuts described stop component, and the other end abuts described first step portion (41).
6. the ball valve as described in any one of claim 1-3 it is characterised in that described valve body (8) be provided with a pair of projections (8a,
8a '), described spring (5) one end described stop component of abutting, the other end described boss of abutting (8a, 8a ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620857903.6U CN205956433U (en) | 2016-08-09 | 2016-08-09 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620857903.6U CN205956433U (en) | 2016-08-09 | 2016-08-09 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205956433U true CN205956433U (en) | 2017-02-15 |
Family
ID=57974604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620857903.6U Active CN205956433U (en) | 2016-08-09 | 2016-08-09 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205956433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970010A (en) * | 2019-07-05 | 2022-01-25 | 自贡自高阀门有限公司 | Self-locking valve and system |
-
2016
- 2016-08-09 CN CN201620857903.6U patent/CN205956433U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970010A (en) * | 2019-07-05 | 2022-01-25 | 自贡自高阀门有限公司 | Self-locking valve and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220823 Address after: 312500 Daming new area, Zhejiang Xinchang Economic Development Zone, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Sanhua Commercial Refrigeration Co.,Ltd. Address before: 312500 xialiquan village, Qixing street, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. |