CN202901402U - Ball check valve - Google Patents
Ball check valve Download PDFInfo
- Publication number
- CN202901402U CN202901402U CN 201220511789 CN201220511789U CN202901402U CN 202901402 U CN202901402 U CN 202901402U CN 201220511789 CN201220511789 CN 201220511789 CN 201220511789 U CN201220511789 U CN 201220511789U CN 202901402 U CN202901402 U CN 202901402U
- Authority
- CN
- China
- Prior art keywords
- positioning seat
- valve
- valve core
- ball check
- spool
- Prior art date
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Check Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The utility model provides a ball check valve, belongs to the technical field of machinery, and solves the problems of complex structure and large size of the conventional ball check valve. The ball check valve comprises a valve body, a valve core, a valve rod and a hand wheel, wherein the valve body is provided with a water inlet and a water outlet; a cavity is formed in the valve body; the valve core is arranged in the valve body; one end of the valve rod is fixedly connected with the valve core, and the other end of the valve rod penetrates through the valve body and is fixedly connected with the hand wheel; a positioning seat is fixed in the valve core; a guide hole is transversely formed in the positioning seat; a check valve core is movably inserted into the guide hole; a spring is arranged between the check valve core and the positioning seat; and under the action of the elasticity of the spring, the check valve core tends to be sealed with the inner side wall of the positioning seat. The ball check valve has the advantages of simple structure, low cost, good backflow preventing effect and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of ball valve, relates in particular to a kind of ball check valve.
Background technique
Ball valve is a kind of common valve, realizes the function of opening and closing medium channel by the rotary ball valve spool, mainly is used as to cut off, distribute on pipeline and change media flow direction, and structure function is more single.Because the ball valve that uses in the existing pipeline does not have the effect that the prevention medium flows backwards, therefore in order to prevent that medium from flowing backwards, usually at safety check of the other installation of ball valve.But thus, just easily so that in the pipeline quantity of valve increase, required installing space is just larger, it is also higher to build the cost that pipeline uses, because valve quantity increases, increases easily the leakage of medium.
In order to address the above problem, people have passed through long-term exploration, have proposed various solutions, and what have has also applied for patent.A kind of ball check valve [application number: 02235459.X is disclosed such as Chinese patent; Notification number: CN2549281Y], it is that a flap is installed between the spheroid of ball valve and media outlet end, this flap is consistent with the direction of pipeline, and can move along pipeline.The head of flap is towards spheroid, and its cross section is the inclined-plane corresponding with the pipeline inclined-plane, and its bottom surface is greater than the diameter of pipeline.This ball check valve has been installed flap makes valve have check function, so that the medium one-way flow in the pipeline can prevent that medium from flowing backwards.
Yet, though above-mentioned ball check valve can prevent medium and flow backwards, but owing in valve body, be provided with for the flap that flap is installed, therefore so that the more general ball valve of the volume of whole ball check valve wants large, and the structure in the ball valve is more complicated, cost required when producing this ball valve is also much higher than general cost, so use value is not high.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist for prior art, proposed a kind of simple in structure, can prevent the ball check valve that medium flows backwards.
The purpose of this utility model can realize by following technical proposal: a kind of ball check valve, comprise valve body, spool, valve rod and handwheel, described valve body has water intake and water outlet, described valve inner is cavity, described spool is arranged in the valve body, one end of described valve rod and above-mentioned spool are connected and the other end of valve rod passes valve body and handwheel is connected, it is characterized in that, be fixed with positioning seat in the described spool, laterally be provided with a pilot hole on the described positioning seat, the place's activity of described pilot hole is equipped with non-return valve core, be provided with spring between described non-return valve core and the positioning seat, non-return valve core has the trend that forms sealing with the positioning seat madial wall under the elastic force effect of spring.
In use, rotate handwheel, the valve rod that is connected with handwheel and the spool that is connected with valve rod be along with handwheel rotates, and turns over the several angle late gate and be in and open or closed condition.Medium flows through spool by the valve inleting water mouth and is flowed out by the valve body water outlet.Because the non-return valve core in the spool forms sealing with the positioning seat madial wall under the elastic force effect of spring, therefore when this valve is opened, valve body is in the one-way conduction state, and namely the pressure of the medium elastic force that can overcome spring promotes non-return valve core and moves, and medium can only flow through water outlet by water intake.And the medium of water outlet its pressure when flowing backwards can make together with the elastic force of spring non-return valve core and positioning seat madial wall form to seal, thereby so that medium can't pass through.
In above-mentioned ball check valve, be fixed with a fixing frame in the described spool, the described positioning seat outside is complementary and both close contacts with the fixing frame inboard.Positioning seat can be positioned in the spool securely by fixing frame, thereby so that the position of positioning seat in spool be difficult for being offset.
In above-mentioned ball check valve, described positioning seat comprises positioning seat one and the positioning seat two of mutual clamping, described pilot hole is positioned at positioning seat one place, described positioning seat one is fixed in the fixing frame place, and described non-return valve core forms sealing with the madial wall of positioning seat two under the elastic force effect of spring.
In above-mentioned ball check valve, the inboard of described spool has the gear edge of protrusion, and an end of described positioning seat two is resisted against described gear along upper, is provided with seal ring between described positioning seat two and the spool.Seal ring between positioning seat two and the spool can prevent that medium is by between the two clearance leakage.
In above-mentioned ball check valve, described positioning seat two madial walls have the shoulder block of protrusion, described non-return valve core cross section is T-shaped, described non-return valve core front end is tapered, be provided with seal ring between described non-return valve core front end and positioning seat two madial walls, described non-return valve core front end is resisted against on the shoulder block in the elastic force effect of spring.Under the elastic force effect of spring, the tapered front end of non-return valve core is resisted against on the shoulder block, and the seal ring by between the two is so that they are in sealing state.
In above-mentioned ball check valve, described spring housing is located on the non-return valve core, and the two ends of described spring act on respectively on positioning seat one and the non-return valve core.
In above-mentioned ball check valve, described valve inleting water mouth place has been threaded connection an adapter.
In above-mentioned ball check valve, be equipped with sealing seat between described spool and valve body and the adapter.
Compared with prior art, this ball check valve has the following advantages:
1, this ball check valve only increases the check function of valve by non-return valve core is set in spool, and does not increase other unnecessary part, and structure is simpler, and manufacturing cost is lower, has utilized preferably the space in the valve;
2, the non-return valve core of this ball check valve is simple in structure, and utilizes the elastic force of spring and the out-of-date pressure of MEDIA FLOW to realize the one-way conduction function, has effectively eliminated the refluence phenomenon of medium;
3, this ball check valve arranges many places seal ring and sealing seat in valve body, has guaranteed preferably the sealability of this valve, has effectively prevented leakage problem.
Description of drawings
Fig. 1 is the sectional view of this ball check valve.
Fig. 2 is the structural representation at non-return valve core place in this ball check valve.
Among the figure, 1, valve body; 2, spool; 3, valve rod; 4, handwheel; 5, water intake; 6, water outlet; 7, non-return valve core; 8, spring; 9, fixing frame; 10, positioning seat one; 11, positioning seat two; 12, gear edge; 13, seal ring; 14, shoulder block; 15, take over; 16, sealing seat.
Embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one
As shown in Figure 1, a kind of ball check valve comprises valve body 1, spool 2, valve rod 3 and handwheel 4, and valve body 1 has water intake 5 and water outlet 6, and valve body 1 water intake 5 places have been threaded connection one and have taken over 15.Valve body 1 inside is cavity, and spool 2 is arranged in the valve body 1, spool 2 and valve body 1 and take over 15 between be equipped with sealing seat 16.One end and the spool 2 of valve rod 3 are connected, and the other end of valve rod 3 stretches out valve body 1 and is connected with handwheel 4, and valve rod 3 in valve body 1 part and valve body 1 between be provided with filler, also be provided with pressure cap on the filler.In the present embodiment, the structure in spool 2, other structure of this ball check valve is all identical with ordinary ball valve.
As depicted in figs. 1 and 2, be fixed with a fixing frame 9 in the spool 2, fixing frame 9 inboards are fixed with positioning seat, and the inboard of fixing frame 9 and the outside of positioning seat are complementary, and the inboard close contact of the outside of positioning seat and fixing frame 9.Laterally be provided with pilot hole on the positioning seat, the activity of pilot hole place is equipped with non-return valve core 7.Positioning seat comprises positioning seat 1 and the positioning seat 2 11 of mutual clamping, and positioning seat 1 is fixed in fixing frame 9 places, and pilot hole is positioned on the positioning seat 1.The inboard of spool 2 has the gear of protrusion along 12, and an end of positioning seat 2 11 is resisted against gear along on 12, is provided with seal ring 13 between positioning seat 2 11 and the spool 2.
During this use, user's handle with sleeve can be along with handwheel 4 together rotates with the spool 2 that valve rod 3 reaches and valve rod 3 is connected mutually that handwheel 4 is connected mutually, and after handwheel 4 turned over several angle, valve is in to be opened or closed condition.During valve opening, the pressure-acting of the medium at valve body 1 water intake 5 places is at the outer side surface of non-return valve core 7 front ends, and so that non-return valve core 7 overcome spring 8 the elastic force effect and away from the shoulder block 14 of positioning seat 2 11 madial walls, thereby guarantee that medium is can be by spool 2 inner and flow out from the water outlet 6 of valve body 1.
And flow into valve body 1 when interior by water outlet 6 places of valve body 1 when medium, the pressure-acting of medium is on non-return valve core 7, and under the acting in conjunction power of spring 8 elastic force so that the front end of non-return valve core 7 closely be resisted against on the shoulder block 14 of positioning seat 2 11 madial walls, this moment, valve was in closed condition, medium also can't flow into valve body 1 water intake 5 from the water outlet 6 of valve body 1, has namely realized the anti-back flow function of this valve.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (8)
1. ball check valve, comprise valve body (1), spool (2), valve rod (3) and handwheel (4), described valve body (1) has water intake (5) and water outlet (6), described valve body (1) inside is cavity, described spool (2) is arranged in the valve body (1), one end of described valve rod (3) and above-mentioned spool (2) are connected and the other end of valve rod (3) passes valve body (1) and is connected with handwheel (4), it is characterized in that, described spool is fixed with positioning seat in (2), laterally be provided with a pilot hole on the described positioning seat, the place's activity of described pilot hole is equipped with non-return valve core (7), be provided with spring (8) between described non-return valve core (7) and the positioning seat, non-return valve core (7) has the trend that forms sealing with the positioning seat madial wall under the elastic force effect of spring (8).
2. ball check valve according to claim 1 is characterized in that, is fixed with a fixing frame (9) in the described spool (2), and the described positioning seat outside is complementary and both close contacts with fixing frame (9) inboard.
3. ball check valve according to claim 2, it is characterized in that, described positioning seat comprises positioning seat one (10) and the positioning seat two (11) of mutual clamping, described pilot hole is positioned at positioning seat one (10) and locates, described positioning seat one (10) is fixed in fixing frame (9) to be located, and described non-return valve core (7) forms sealing with the madial wall of positioning seat two (11) under the elastic force effect of spring (8).
4. ball check valve according to claim 3, it is characterized in that, the inboard of described spool (2) has the gear of protrusion along (12), one end of described positioning seat two (11) is resisted against described gear along on (12), is provided with seal ring (13) between described positioning seat two (11) and the spool (2).
5. ball check valve according to claim 4, it is characterized in that, described positioning seat two (11) madial walls have the shoulder block (14) of protrusion, described non-return valve core (7) cross section is T-shaped, described non-return valve core (7) front end is tapered, be provided with seal ring (13) between described non-return valve core (7) front end and positioning seat two (11) madial walls, described non-return valve core (7) front end is resisted against on the shoulder block (14) in the elastic force effect of spring (8).
6. according to claim 1 and 2 or 3 or 4 or 5 described ball check valves, it is characterized in that described spring (8) is sheathed on the non-return valve core (7), the two ends of described spring (8) act on respectively on positioning seat one (10) and the non-return valve core (7).
7. according to claim 1 and 2 or 3 or 4 or 5 described ball check valves, it is characterized in that described valve body (1) water intake (5) is located to be threaded connection one and taken over (15).
8. ball check valve according to claim 8 is characterized in that, is equipped with sealing seat (16) between described spool (2) and valve body (1) and the adapter (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511789 CN202901402U (en) | 2012-09-29 | 2012-09-29 | Ball check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511789 CN202901402U (en) | 2012-09-29 | 2012-09-29 | Ball check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202901402U true CN202901402U (en) | 2013-04-24 |
Family
ID=48122073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220511789 Expired - Lifetime CN202901402U (en) | 2012-09-29 | 2012-09-29 | Ball check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202901402U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791116A (en) * | 2014-02-24 | 2014-05-14 | 张周卫 | LNG ball valve |
| CN107202193A (en) * | 2017-06-16 | 2017-09-26 | 盐城市东荣石油机械有限公司 | A kind of oil exploitation regulating valve |
-
2012
- 2012-09-29 CN CN 201220511789 patent/CN202901402U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791116A (en) * | 2014-02-24 | 2014-05-14 | 张周卫 | LNG ball valve |
| CN107202193A (en) * | 2017-06-16 | 2017-09-26 | 盐城市东荣石油机械有限公司 | A kind of oil exploitation regulating valve |
| CN107202193B (en) * | 2017-06-16 | 2019-01-15 | 盐城市东荣石油机械有限公司 | A kind of oil exploitation regulating valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202901402U (en) | Ball check valve | |
| CN208107244U (en) | A kind of vibration and noise reducing ball check valve | |
| CN201228774Y (en) | Structure improved stop valve | |
| CN211398675U (en) | Magnetic locking non-return gate valve | |
| CN203363266U (en) | Internal thread type ball valve with draining device | |
| CN203892634U (en) | Spherical check valve | |
| CN201795157U (en) | Hermetically sealed no-leakage clearance water distributing and collecting device with scaling-free valve rod | |
| CN204114251U (en) | A kind of Multifunctional combined valve | |
| CN201925496U (en) | Stop valve | |
| CN205745470U (en) | A kind of check-valves of preventing water leakage | |
| CN202228752U (en) | Normally closed valve | |
| CN202927106U (en) | Flat-plate type sluice valve with good sealing performance | |
| CN209892799U (en) | Check valve | |
| CN204025795U (en) | Antidrip theft-proof gate valve | |
| CN209604555U (en) | A kind of shut-off valve that leakproofness is strong | |
| CN201326768Y (en) | Novel ball valve | |
| CN203488723U (en) | Fluid stop valve | |
| CN201787142U (en) | Check valve | |
| CN201764040U (en) | Stop check valve | |
| CN208474589U (en) | A kind of shut-off valve | |
| CN108071849B (en) | Foot valve with flow temperature regulating device | |
| CN205715741U (en) | A kind of stockless straight chamber Filter valve | |
| CN203189760U (en) | Faucet for washing machine | |
| CN216742933U (en) | Electric two-way valve | |
| CN220850756U (en) | Valve core sealing structure of water tap |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200415 Address after: 317600 Industrial Agglomeration Area of Qinggang Town, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: Zhejiang Yonghe Intelligent Control Technology Co.,Ltd. Address before: Taizhou City, Zhejiang province 317606 Yuhuan County town industrial area Patentee before: YORHE FLUID INTELLIGENT CONTROL Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
|
| CX01 | Expiry of patent term |