CN203442237U - One-way check valve - Google Patents
One-way check valve Download PDFInfo
- Publication number
- CN203442237U CN203442237U CN201320404699.9U CN201320404699U CN203442237U CN 203442237 U CN203442237 U CN 203442237U CN 201320404699 U CN201320404699 U CN 201320404699U CN 203442237 U CN203442237 U CN 203442237U
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- CN
- China
- Prior art keywords
- valve
- way check
- valve body
- check valve
- spool
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- Expired - Lifetime
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Abstract
The utility model provides a one-way check valve and belongs to the technical field of valve manufacturing. The one-way check valve solves the problems that an existing one-way check valve is poor in valve element stability and the like. The one-way check valve comprises a valve body, a valve element, a spring and a valve cover, a water inlet is formed in one end of the valve body, a water outlet is formed in the other end of the valve body, the valve element is located in the valve body, the valve cover is fixed at the water outlet of the valve body, and the spring is arranged between the valve element and the valve cover to enable the valve element to have the tendency to seal the water inlet of the valve body all the time. The one-way check valve is characterized in that a plurality of guiding bars are arranged on the edge of the valve cover at equal intervals in the axial direction of the valve cover, the guiding bars are located on the inner side of the valve body, and the peripheral outer side wall of the valve element is attached to the inner side walls of the guiding bars. The one-way check valve has the advantages of being good in stability and the like.
Description
Technical field
The utility model belongs to technical field of valve manufacturing, relates to a kind of one-way check valve.
Background technique
Common valve only has unlatching, closes and controls the function of fluid flow, wants to make fluid not flow backwards, and a check valve must be set in valve.Traditional check valve structure general expression adopts a dish spring and flap, its working principle is on valve seat, to realize non-return sealing by settling flap to be in the central expressed to, traditional check valve must carry out screw thread processing to pipeline when mounted, trouble is installed, inefficiency, traditional check valve is when opening, fluid can fluctuate, and then cause the vibrations of dish spring or flap, thereby cause noise, working life that simultaneously also can reduction dish spring.
For the problem of above existence, people have made improvement miscellaneous, and what have has also applied for patent, and for example Chinese patent literature data discloses the multifunctional non-return valve core [patent No. 200510049784.8, publication number: CN1699807A], it is by helical pitch seat, helical pitch support, spool and dish spring form, helical pitch seat and helical pitch support engagement connection, both joints arrange a seal washer, dish spring is arranged between spool and helical pitch support, helical pitch support afterbody arranges a boss, between boss and rack body, by a plurality of stiffening ribs, be connected, boss inner hollow, its bottom arranges a helical pitch track, spool is beveled structure, its afterbody is built in helical pitch track, its head holds on seal washer under the effect of compact disk spring, helical pitch seat outer side wall arranges round section joint ring, helical pitch support outer side wall is provided with a plurality of elastic card locking devices.
But this kind of non-return valve core, spool leaves seal washer when opening state, although the afterbody of spool is built in the helical pitch track on helical pitch support, but spool head is more much bigger than the area of spool afterbody, spool head is double swerve when mobile, and unrestricted, spool integral body is rocked, shakes more severe, spool poor stability, fluid circulation poor stability.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, and a kind of one-way check valve of good stability is provided.
The purpose of this utility model can realize by following technical proposal: a kind of one-way check valve, comprise valve body, spool, spring and valve gap, one end of described valve body is water intake, the other end is water outlet, described spool is positioned at described valve body, described valve gap is fixed on the water outlet of described valve body, described spring is located between described spool and described valve gap and is made described spool have all the time the trend of the described valve inleting water mouth of sealing, it is characterized in that, on the edge of described valve gap, along it, be axially equidistantly provided with some gib blocks, described gib block is positioned at the inner side of described valve body, the circumferential outer side wall of described spool is fitted on the madial wall of described gib block.
The circumferential outer side wall of this one-way check valve spool is fitted on the madial wall of gib block, check valve is under unlatching or closed condition, at spool during along axially the moving forward and backward of valve body, it is spacing that spool is directed to bar, gib block makes the spool can be along the radially double swerve of valve body, the good stability of spool, thus the flowing of this one-way check valve fluid that make to flow through is stable, and discharge value is stable.
In above-mentioned a kind of one-way check valve, described spool comprises the core print seat that is round table-like and the core bar that is direct rod shape, and the week of described core print seat has annular groove laterally, and described annular groove inner sleeve has " O " type rubber seal.This one-way check valve when closed condition, the water intake of " O " type rubber seal rings for seal valve body, good seal performance.
In above-mentioned a kind of one-way check valve, described annular groove is less than the diameter of opposite side near the diameter of described valve body water outlet one side, and the outer side wall of described annular groove opposite side is fitted on the madial wall of described gib block.The diameter of annular groove one side is less than the outermost diameter of " O " type rubber seal, the outermost diameter of " O " type rubber seal is less than the diameter of annular groove opposite side, the structure at this kind of structure and valve inleting water mouth place matches, be formed with level, curved sealing strip, make the better tightness between valve body and spool, the outer side wall at spool maximum diameter place and the madial wall of gib block fit, rational in infrastructure.
In above-mentioned a kind of one-way check valve, the outer side wall of described gib block is close on the madial wall of described valve body.The good stability of gib block, there is not the phenomenon of double swerve in gib block, thereby makes the good stability of spool.
In above-mentioned a kind of one-way check valve, the quantity of described gib block is 3-6.
In above-mentioned a kind of one-way check valve, the other end of described gib block has stiffening ring.Stiffening ring increases the firm degree of installation of gib block, thereby makes the good stability of spool.
In above-mentioned a kind of one-way check valve, the outside of described stiffening ring is close on the madial wall of described valve body.Stiffening ring can double swerve, and the firm degree that gib block is installed is high, thereby makes the good stability of spool.
In above-mentioned a kind of one-way check valve, described valve gap comprises guide cylinder, connection strap and retaining ring, described guide cylinder is positioned at the center of described retaining ring, described guide cylinder is connected mutually by described connection strap and described retaining ring, and described retaining ring is by being tightly fixed at the water outlet of described valve body.Guide cylinder is connected by connection strap mutually with retaining ring, makes to have opening on valve gap, and the fluid that makes to flow in valve body can flow out from valve gap, rational in infrastructure.
In above-mentioned a kind of one-way check valve, described core bar is positioned at guide cylinder.Guide cylinder play the guiding role to the movement of core bar, makes the core bar can double swerve, thereby makes the spool can double swerve, the stablizing of spool.
In above-mentioned a kind of one-way check valve, described spring is positioned at the outside of described core bar and described guide cylinder, and one end of described spring is resisted against on described core print seat, and the other end is resisted against on described connection strap.The external diameter of guide cylinder and the internal diameter of spring match, and spring are played to the effect of location, and spring housing is in the outside of core bar, and the position of spring can be offset.
Compared with prior art, the one-way check valve that the utility model provides has the following advantages:
1, the outer side wall of this one-way check valve spool is fitted on the madial wall of gib block, the outer side wall of gib block is close on the madial wall of valve body, gib block plays spacing effect to spool, make spool along valve body, axially move forward and backward Shi Buhui along the radially double swerve of valve body, the good stability of spool, thereby make to flow through, flowing of this one-way check valve fluid is stable, discharge value is stable.
2, the other end of this one-way check valve gib block is fixed with stiffening ring, and the outside of stiffening ring is close on the madial wall of valve body, and stiffening ring has been strengthened the installation strength of gib block, thereby has improved the stability of spool.
Accompanying drawing explanation
Fig. 1 is the explosive view of this one-way check valve.
Fig. 2 is the structural representation of this one-way check valve valve gap, gib block.
In figure, 1, valve body; 1a, water intake; 1b, water outlet; 2, spool; 2a, core print seat; 2a1, annular groove; 2b, core bar; 3, spring; 4, valve gap; 4a, guide cylinder; 4b, connection strap; 4c, retaining ring; 5, gib block; 6, " O " type rubber seal; 7, stiffening ring.
Embodiment
Be below specific embodiment of the utility model 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.
As shown in Figure 1, this one-way check valve comprises valve body 1, spool 2, spring 3 and valve gap 4.
The water outlet 1b place of valve body 1 is fixed with valve gap 4, as shown in Figure 2, valve gap 4 comprises guide cylinder 4a, connection strap 4b and retaining ring 4c, guide cylinder 4a is positioned at the middle of retaining ring 4c, in the middle of it, has through hole, and the cross section of through hole is regular hexagon, in the present embodiment, the quantity of connection strap 4b is four, and one end of four connection strap 4b is at interval of on 90 ° of equally spaced outer side walls that are connected in guide cylinder 4a, and the other end of four connection strap 4b is all connected on the madial wall of retaining ring 4c.On retaining ring 4c, be also equidistantly fixed with gib block 5, in the present embodiment, the quantity of gib block 5 is also four, and gib block 5 is along the axial setting of valve body 1, gib block 5 and connection strap 4b corresponding setting one by one, and the other end of gib block 5 is connected on stiffening ring 7.
Retaining ring 4c and valve body 1 water outlet 1b place drive fit are connected, and stiffening ring 7, gib block 5 are all positioned at valve body 1, and the outer side wall of stiffening ring 7, gib block 5 is all close on the madial wall that is combined in valve body 1.Spring 3 is enclosed within the outside of core bar 2b and guide cylinder 4a, core bar 2b is located in guide cylinder 4a, guide cylinder 4a plays leading role to the movement of core bar 2b, make spool 2 moving axially along valve body 1, the external diameter of the internal diameter of spring 3 and guide cylinder 4a matches, it is upper that spring 3 one end are resisted against core print seat 2a, and it is upper that the other end is resisted against connection strap 4b, makes spool 2 have all the time the trend of sealing check valve.The diameter on annular groove 2a1 diameter larger side limit and two match over against the distance arranging between gib block 5, the outer side wall that is spool 2 is to be fitted on the madial wall of gib block 5, can only be along the moving axially of valve body 1 when spool 2 moves, can be along the radially double swerve of valve body 1.
Specific embodiment described herein is only 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 supplements 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.
Although more used herein valve body 1, water intake 1a, water outlet 1b, spool 2, core print seat 2a, annular groove 2a1, core bar 2b, spring 3, valve gap 4, guide cylinder 4a, connection strap 4b, retaining ring 4c, gib block 5, " O " term such as type rubber seal 6, stiffening ring 7, do not get rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (10)
1. an one-way check valve, comprise valve body (1), spool (2), spring (3) and valve gap (4), one end of described valve body (1) is water intake (1a), the other end is water outlet (1b), described spool (2) is positioned at described valve body (1), described valve gap (4) is fixed on the water outlet (1b) of described valve body (1) and locates, described spring (3) is located between described spool (2) and described valve gap (4) and is made described spool (2) have all the time the trend of sealing described valve body (1) water intake (1a), it is characterized in that, on the edge of described valve gap (4), along it, be axially equidistantly provided with some gib blocks (5), described gib block (5) is positioned at the inner side of described valve body (1), the circumferential outer side wall of described spool (2) is fitted on the madial wall of described gib block (5).
2. a kind of one-way check valve according to claim 1, it is characterized in that, described spool (2) comprises the core print seat (2a) that is round table-like and the core bar (2b) that is direct rod shape, the week of described core print seat (2a) has annular groove (2a1) laterally, and described annular groove (2a1) inner sleeve has " O " type rubber seal (6).
3. a kind of one-way check valve according to claim 2, it is characterized in that, the diameter that close described valve body (1) water outlet (1b) of described annular groove (2a1) is located a side is less than the diameter of opposite side, and the outer side wall of described annular groove (2a1) opposite side is fitted on the madial wall of described gib block (5).
4. according to a kind of one-way check valve described in claim 1 or 2 or 3, it is characterized in that, the outer side wall of described gib block (5) is close on the madial wall of described valve body (1).
5. according to a kind of one-way check valve described in claim 1 or 2 or 3, it is characterized in that, the quantity of described gib block (5) is 3-6.
6. according to a kind of one-way check valve described in claim 1 or 2 or 3, it is characterized in that, the other end of described gib block (5) has stiffening ring (7).
7. a kind of one-way check valve according to claim 6, is characterized in that, the outside of described stiffening ring (7) is close on the madial wall of described valve body (1).
8. according to a kind of one-way check valve described in claim 2 or 3, it is characterized in that, described valve gap (4) comprises guide cylinder (4a), connection strap (4b) and retaining ring (4c), described guide cylinder (4a) is positioned at the center of described retaining ring (4c), described guide cylinder (4a) is connected mutually by described connection strap (4b) and described retaining ring (4c), and described retaining ring (4c) is located at the water outlet (1b) of described valve body (1) by being tightly fixed.
9. a kind of one-way check valve according to claim 8, is characterized in that, described core bar (2b) is positioned at guide cylinder (4a).
10. a kind of one-way check valve according to claim 8, it is characterized in that, described spring (3) is positioned at the outside of described core bar (2b) and described guide cylinder (4a), and it is upper that one end of described spring (3) is resisted against described core print seat (2a), and the other end is resisted against on described connection strap (4b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320404699.9U CN203442237U (en) | 2013-07-09 | 2013-07-09 | One-way check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320404699.9U CN203442237U (en) | 2013-07-09 | 2013-07-09 | One-way check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203442237U true CN203442237U (en) | 2014-02-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320404699.9U Expired - Lifetime CN203442237U (en) | 2013-07-09 | 2013-07-09 | One-way check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203442237U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442260A (en) * | 2014-06-11 | 2016-03-30 | 无锡小天鹅股份有限公司 | Washing machine abluent box outlet valve |
| CN107551427A (en) * | 2017-10-27 | 2018-01-09 | 航宇救生装备有限公司 | A kind of Self-water absorption type fire-fighting well-bucket |
| CN108180297A (en) * | 2017-11-30 | 2018-06-19 | 北京宇航系统工程研究所 | Anti- flutter check valve |
| CN110905759A (en) * | 2019-11-29 | 2020-03-24 | 俞航丰 | Electromagnetic pump with high stability |
| CN112923107A (en) * | 2021-02-04 | 2021-06-08 | 浙江精邑丰科技有限公司 | Check valve |
-
2013
- 2013-07-09 CN CN201320404699.9U patent/CN203442237U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442260A (en) * | 2014-06-11 | 2016-03-30 | 无锡小天鹅股份有限公司 | Washing machine abluent box outlet valve |
| CN107551427A (en) * | 2017-10-27 | 2018-01-09 | 航宇救生装备有限公司 | A kind of Self-water absorption type fire-fighting well-bucket |
| CN107551427B (en) * | 2017-10-27 | 2023-02-17 | 航宇救生装备有限公司 | Self-water-absorption type fire-fighting bucket |
| CN108180297A (en) * | 2017-11-30 | 2018-06-19 | 北京宇航系统工程研究所 | Anti- flutter check valve |
| CN110905759A (en) * | 2019-11-29 | 2020-03-24 | 俞航丰 | Electromagnetic pump with high stability |
| CN110905759B (en) * | 2019-11-29 | 2021-06-22 | 南京棠邑科创服务有限公司 | Electromagnetic pump with high stability |
| CN112923107A (en) * | 2021-02-04 | 2021-06-08 | 浙江精邑丰科技有限公司 | Check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: YUHUAN JIESHUI PLASTIC PRODUCTS FACTORY Assignor: Zhao Hongjun Contract record no.: 2014330000268 Denomination of utility model: Unidirectional check valve Granted publication date: 20140219 License type: Common License Record date: 20140630 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |