CN206093065U - Ball valve - Google Patents
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- CN206093065U CN206093065U CN201620879925.2U CN201620879925U CN206093065U CN 206093065 U CN206093065 U CN 206093065U CN 201620879925 U CN201620879925 U CN 201620879925U CN 206093065 U CN206093065 U CN 206093065U
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- piston rod
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Abstract
The utility model provides a ball valve belongs to valve manufacture technical field. It has solved current ball valve play water pressure can not limit the scheduling problem. This ball valve includes the valve body, valve rod and the case that is located the valve body, the play water end (W. E. ) of valve body links firmly the takeover that is the tube -shape and goes out the water end (W. E. ) and communicates in taking over the middle part, the inner wall department that it has swivel nut and takeover to be close to bottom department to take over top end screw thread connection is fixed with the disk seat, be equipped with the piston rod rather than coaxial setting in the takeover, the bottom circumference that disk seat setting and piston rod were passed to the bottom of piston rod has linked firmly seal gasket, it puies forward ammunition feed power and makes the bottom of piston rod have the trend of keeping away from the disk seat to be equipped with spring and spring between the top of piston rod and the swivel nut, the piston rod is close to bottom department to have one section reducing section and reducing section and is conical surface form to the outer wall of this section piston rod of piston rod middle part department, be equipped with the anti -disengaging structure who prevents the piston rod and break away from in the takeover. This ball valve can accurately inject the water pressure, and the practicality is strong, and use cost is low.
Description
Technical field
The utility model belongs to technical field of valve manufacturing, is related to a kind of ball valve.
Background technology
Ball valve is opening and closing element（Core）Driven by valve rod, and around the valve that rotates of axis of valve rod, in industry, agriculture
It is widely used in the pipeline in the fields such as industry, the energy and daily life, connection for medium in control pipeline or cuts
The flow of medium in disconnected and pipeline.
Such as Chinese patent literature data discloses a kind of ball valve [application number：201220638368.7；Authorization Notice No.：
CN202992322U], it includes valve body, the valve element being arranged in valve body and valve rod, and valve rod is inner to be circumferentially connected with valve element, its
Outer end is stretched out valve body and is connected with handle, and valve body includes the body with water inlet and is threadedly connected at body upper water-out end
Tubular bonnet, valve element is located at the inner side of body water side and its side wall leans with the inner of bonnet, bonnet and body
Between threaded connection place be provided with fluid sealant, sealing is equipped between valve element and body madial wall and between valve element and bonnet
Circle.
Sealing in above-mentioned ball valve between bonnet and body is preferable, but it does not all have as existing ball valve
The function of water outlet discharge pressure can be limited, therefore additionally mounted safety valve or balanced valve or pressure-reducing valve are needed in managing,
So that discharge pressure is more consistent, use cost is which increased, it is high to requirements of installation space, connection also more inconvenience is installed,
Multiple valves of series connection can cause each other certain turbulent flow, affect discharge pressure precision.
The content of the invention
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, there is provided one kind can limit water outlet
Pressure and the good ball valve of precision.
The purpose of this utility model can be realized by following technical proposal：A kind of ball valve, including valve body, valve rod and be located at
Valve element in valve body, the inner of described valve rod is circumferentially connected with valve element, and the outer end of valve rod is stretched out valve body and is connected with handle, its
It is characterised by, the water side of described valve body is fixed with tubular adapter and water side is communicated in adapter middle part, and described connects
Pipe top is threaded with swivel nut and takes over and is fixed with valve seat at the inwall of bottom end, is provided with same with it in described adapter
The piston rod that axle is arranged, the bottom of described piston rod is arranged through valve seat and the bottom of piston rod is circumferentially fixed with sealing gasket
Piece, is provided with spring and spring provides elastic force so that the bottom of piston rod has away from valve seat between the top of piston rod and swivel nut
Trend, described piston rod has one section of undergauge section at bottom and undergauge section is to outside this section of piston rod of piston rod center
Wall is in conical surface shape, and the disconnecting prevention structure for preventing piston rod from departing from is provided with described adapter.
When this ball valve is used, when intake pressure change is big, the hydraulic pressure of water side acts on the piston rod outer wall in conical surface shape,
Hydraulic pressure overcomes the elastic force of spring so that piston rod rising, reduces piston rod bottom and go out water space to valve seat so that water yield subtracts
It is few that with pressure limiting, when intake pressure is excessive, then the gasket seal of piston rod bottom is sealed in valve seat, the bottom of adapter will not water outlet,
Other valve pipe fittings are caused to damage in order to avoid water outlet hydraulic pressure is excessive；When intake pressure becomes hour, the elastic force of spring is caused under piston rod
Drop, increase piston rod bottom goes out water space to valve seat so that water yield increases to keep discharge pressure more constant.In the conical surface
The piston rod outer wall of shape experiences that hydraulic pressure is more sensitive, so this ball valve precision is higher, in addition undergauge section causes the current of water side
Easily flow out, turbulent flow will not be formed, it is ensured that precision.
In a kind of above-mentioned ball valve, described disconnecting prevention structure includes that the periphery of tubular inner sleeve and inner sleeve has and takes
Side, described nozzle inner wall has the step for supporting scrap (bridge) bottom, and described inner sleeve bottom has the flanging of fold inward, described
The piston rod first half there is the convex section of radially protruding, the bottom of described convex section contradict for flanging and convex section periphery
It is contacted with inner sleeve inwall.The flanging of inner sleeve is used to contradict convex section bottom, it is to avoid piston rod departs from inner sleeve, and inner sleeve is also acted as
Guide effect, convex section is contacted with inner sleeve inwall so that piston rod axial movement steadily, will not be produced and rock skew.
Used as another kind of situation, in a kind of above-mentioned ball valve, described disconnecting prevention structure is provided with including piston rod center
The back-up ring of one circle radial protrusion, is provided with the step for contradicting back-up ring bottom in described adapter or swivel nut.
In a kind of above-mentioned ball valve, described swivel nut screw top is connected with adjusting screw, and described spring is placed on tune
The top of the inner upper and spring of section screw is contacted in adjusting screw.The decrement of spring can be changed by turning adjusting screw,
So as to change piston rod bottom to the water space that goes out of valve seat, change discharge pressure, it is easy to adjust.
In a kind of above-mentioned ball valve, the top of described adapter is threaded with the guarantor for setting on swivel nut, adjusting screw cover
Helmet, the top surface of protective cap has flat recess or cross recess.Protective cover avoids lay operators' maloperation adjusting screw, really
Break even ball valve normal work.
In a kind of above-mentioned ball valve, described piston rod part axially offers installing hole, and described spring stretches into peace
Dress is arranged in hole.Installing hole plays certain position-limiting action to spring, it is to avoid spring to sidepiece is turned down, spring works stability
It is good.
In a kind of above-mentioned ball valve, described piston rod bottom is threaded with clamping cap, described gasket seal folder
It is held between clamping cap and piston rod bottom and the outer ring deformation of gasket seal protrudes from holding position.Such gasket seal installation side
Just, and will not fall off, good operating stability.
In a kind of above-mentioned ball valve, it is provided with water side and tubular filtration between described inner sleeve and valve seat
Net, is inserted in inner sleeve and is kept out by scrap (bridge) at the top of described screen pack, the bottom of screen pack is supported by valve seat.Screen pack was played
Filter impurities in water effect so that water outlet is clean.
In a kind of above-mentioned ball valve, between described valve seat and adapter, between scrap (bridge) and adapter, convex section and inner sleeve it
Between be equipped with sealing ring.Sealing ring ensure that sealing everywhere, it is to avoid leakage.
In a kind of above-mentioned ball valve, the bottom of described adapter has external screw thread and takes over bottom and be threaded with and connects
Snap ring and rubber are provided between head, the outer end threaded connection female loose joint cap of tool of joint, described joint and loose joint cap
Pad.Adapter can be directly connected to pipeline by external screw thread, when pipeline is also external screw thread, can be connected by loose joint cap so that even
Connect conveniently.
Compared with prior art, the compact conformation of this ball valve, connects quick and easy for installation, can accurately limit water outlet pressure
Power, practical, use cost is low, long service life, and discharge pressure is adjustable, easy to operate, also with filtering function, makes
Obtain water outlet clean.
Description of the drawings
Fig. 1 is the structure cross-sectional schematic of this ball valve.
In figure, 1, valve body；1a, water side；2nd, valve rod；3rd, valve element；4th, handle；5th, take over；6th, swivel nut；7th, valve seat；8th, it is living
Stopper rod；8a, undergauge section；8b, convex section；8c, installing hole；9th, gasket seal；10th, spring；11st, inner sleeve；11a, scrap (bridge)；11b, folding
Side；12nd, adjusting screw；13rd, protective cap；14th, clamping cap；15th, screen pack；16th, sealing ring；17th, joint；18th, loose joint cap；19、
Snap ring；20th, rubber sheet gasket.
Specific embodiment
The following is specific embodiment of the utility model and combine accompanying drawing, further is made to the technical solution of the utility model
Description, but the utility model is not limited to these embodiments.
As shown in figure 1, this ball valve includes valve body 1, valve rod 2 and the valve element in valve body 13, the inner and valve element of valve rod 2
3 is circumferential connected, and the outer end of valve rod 2 is stretched out valve body 1 and is connected with handle 4, and the water side 1a of valve body 1 is fixed with tubular adapter
5 and water side 1a are communicated in the middle part of adapter 5, and valve body 1 and adapter 5 are integral type structure, and the top of adapter 5 is threaded with swivel nut 6
And adapter 5 is fixed with valve seat 7, adapter 5 at the inwall of bottom end and is provided with the piston rod 8 for being coaxial therewith arranging, piston rod 8
Bottom arrange through valve seat 7 and the bottom of piston rod 8 is circumferentially fixed with gasket seal 9, the top of piston rod 8 and swivel nut 6 it
Between be provided with spring 10 and spring 10 and provide elastic force so that the bottom of piston rod 8 has the trend away from valve seat 7, piston rod 8 is close
The outer wall at bottom with one section of undergauge section 8a and undergauge section 8a to this section of piston rod of 8 center of piston rod 8 is in conical surface shape, is taken over
The disconnecting prevention structure for preventing piston rod 8 from departing from is provided with 5.
Further describe in detail, disconnecting prevention structure includes tubular inner sleeve 11 and the periphery of inner sleeve 11 has scrap (bridge) in the present embodiment
11a, the inwall of adapter 5 has the step for supporting scrap (bridge) 11a bottoms, and the bottom of inner sleeve 11 has the flanging 11b of fold inward, piston rod
The bottom that 8 first halves have the convex section 8b of radially protruding, convex section 8b supplies flanging 11b conflicts and the periphery contact of convex section 8b
In the inwall of inner sleeve 11.
The screw top of swivel nut 6 is connected with adjusting screw 12, and spring 10 is placed on the top of the inner upper and spring 10 of adjusting screw 12
End is contacted in adjusting screw 12, and the top of piston rod 8 axially offers installing hole 8c, and spring 10 is stretched in installing hole 8c and arranged.Connect
The top of pipe 5 is threaded with the protective cap 13 for setting on swivel nut 6, the cover of adjusting screw 12, and the top surface of protective cap 13 has cross recess.
In order to gasket seal 9 is easy for installation, and will not fall off, the bottom of piston rod 8 is threaded with clamping cap 14, sealing
Pad 9 is held between clamping cap 14 and the bottom of piston rod 8 and the outer ring deformation of gasket seal 9 protrudes from holding position；In order to go out
Water is clean, is provided between inner sleeve 11 and valve seat 7 at the 1a of water side and tubular screen pack 15, the top set of screen pack 15
Enter inner sleeve 11 and kept out by scrap (bridge) 11a, the bottom of screen pack 15 is supported by valve seat 7；For sealing, valve seat 7 and adapter 5 it
Between, sealing ring 16 is equipped between scrap (bridge) 11a and adapter 5, between convex section 8b and inner sleeve 11；In order to easy to connect, adapter 5
Bottom has external screw thread and the bottom of adapter 5 is threaded with joint 17, the female work of outer end threaded connection tool of joint 17
Cap 18 is connect, snap ring 19 and rubber sheet gasket 20 are provided between joint 17 and loose joint cap 18.
Specific embodiment described herein is only explanation for example to the utility model spirit.The utility model institute
Category those skilled in the art can make various modifications to described specific embodiment or supplement or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (10)
1. a kind of ball valve, including valve body（1）, valve rod（2）With positioned at valve body（1）Interior valve element（3）, described valve rod（2）It is interior
End and valve element（3）It is circumferential to be connected, valve rod（2）Outer end stretch out valve body（1）And and handle（4）It is connected, it is characterised in that described
Valve body（1）Water side（1a）It is fixed with tubular adapter（5）And water side（1a）It is communicated in adapter（5）Middle part, it is described
Adapter（5）Top is threaded with swivel nut（6）And take over（5）Valve seat is fixed with the inwall of bottom end（7）, described connects
Pipe（5）Inside it is provided with the piston rod for being coaxial therewith arranging（8）, described piston rod（8）Bottom pass through valve seat（7）Arrange and piston
Bar（8）Bottom be circumferentially fixed with gasket seal（9）, piston rod（8）Top and swivel nut（6）Between be provided with spring（10）And bullet
Spring（10）Elastic force is provided and causes piston rod（8）Bottom have away from valve seat（7）Trend, described piston rod（8）The bottom of near
There is one section of undergauge section at portion（8a）And undergauge section（8a）To piston rod（8）This section of piston rod of center（8）Outer wall be in the conical surface
Shape, described adapter（5）Inside being provided with prevents piston rod（8）The disconnecting prevention structure of disengaging.
2. a kind of ball valve according to claim 1, it is characterised in that described disconnecting prevention structure includes tubular inner sleeve
（11）And inner sleeve（11）Periphery there is scrap (bridge)（11a）, described adapter（5）Inwall has support scrap (bridge)（11a）The platform of bottom
Rank, described inner sleeve（11）Bottom has the flanging of fold inward（11b）, described piston rod（8）The first half has radial convex
The convex section for going out（8b）, described convex section（8b）Bottom supply flanging（11b）Contradict and convex section（8b）Periphery be contacted with
Inner sleeve（11）Inwall.
3. a kind of ball valve according to claim 1, it is characterised in that described disconnecting prevention structure includes piston rod（8）Middle part
Place is provided with the back-up ring of a circle radial protrusion, described adapter（5）Or swivel nut（6）Inside it is provided with the step for contradicting back-up ring bottom.
4. a kind of ball valve according to claim 1 and 2, it is characterised in that described swivel nut（6）Screw top is connected with tune
Section screw（12）, described spring（10）It is placed on adjusting screw（12）On the inner and spring（10）Top contact in adjusting screw
（12）.
5. a kind of ball valve according to claim 4, it is characterised in that described adapter（5）Top be threaded with by
Swivel nut（6）, adjusting screw（12）The protective cap that cover sets（13）, protective cap（13）Top surface there is flat recess or cross recess.
6. a kind of ball valve according to claim 5, it is characterised in that described piston rod（8）Top axially offers peace
Dress hole（8c）, described spring（10）Stretch into installing hole（8c）Middle setting.
7. a kind of ball valve according to claim 1 or 2 or 3, it is characterised in that described piston rod（8）Bottom screw thread connects
It is connected to clamping cap（14）, described gasket seal（9）It is held on clamping cap（14）And piston rod（8）Between bottom and gasket seal
（9）Outer ring deformation protrude from holding position.
8. a kind of ball valve according to claim 2, it is characterised in that described inner sleeve（11）And valve seat（7）Between be provided with
Positioned at water side（1a）Place and tubular screen pack（15）, described screen pack（15）Top be inserted in inner sleeve（11）And taken
Side（11a）Keep out, screen pack（15）Bottom by valve seat（7）Support.
9. a kind of ball valve according to claim 2, it is characterised in that described valve seat（7）And adapter（5）Between, scrap (bridge)
（11a）And adapter（5）Between, convex section（8b）And inner sleeve（11）Between be equipped with sealing ring（16）.
10. a kind of ball valve according to claim 1, it is characterised in that described adapter（5）Bottom have external screw thread and
Adapter（5）Bottom is threaded with joint（17）, joint（17）The outer end threaded connection female loose joint cap of tool（18）, institute
The joint stated（17）With loose joint cap（18）Between be provided with snap ring（19）And rubber sheet gasket（20）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620879925.2U CN206093065U (en) | 2016-08-15 | 2016-08-15 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620879925.2U CN206093065U (en) | 2016-08-15 | 2016-08-15 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206093065U true CN206093065U (en) | 2017-04-12 |
Family
ID=58467225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620879925.2U Active CN206093065U (en) | 2016-08-15 | 2016-08-15 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206093065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725985A (en) * | 2018-07-17 | 2020-01-24 | 浙江三花制冷集团有限公司 | Electric ball valve and manufacturing method thereof |
-
2016
- 2016-08-15 CN CN201620879925.2U patent/CN206093065U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725985A (en) * | 2018-07-17 | 2020-01-24 | 浙江三花制冷集团有限公司 | Electric ball valve and manufacturing method thereof |
| US11131397B2 (en) | 2018-07-17 | 2021-09-28 | Zhejiang Sanhua Climate And Appliance Controls Group Co., Ltd | Electric ball valve and manufacturing method therefor |
| CN110725985B (en) * | 2018-07-17 | 2021-11-12 | 浙江三花制冷集团有限公司 | Electric ball valve and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 317606 science and Technology Industrial Park, Yuhuan County, Taizhou City, Zhejiang Province (Qinggang Xiaqiu) Patentee after: Zhejiang Hengjie Copper Co.,Ltd. Address before: 317606 science and Technology Industrial Park, Yuhuan County, Taizhou City, Zhejiang Province (Qinggang Xiaqiu) Patentee before: ZHEJIANG HENGJIE COPPER INDUSTRY CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |