CN203979526U - Axial flow type check valve - Google Patents
Axial flow type check valve Download PDFInfo
- Publication number
- CN203979526U CN203979526U CN201420418899.4U CN201420418899U CN203979526U CN 203979526 U CN203979526 U CN 203979526U CN 201420418899 U CN201420418899 U CN 201420418899U CN 203979526 U CN203979526 U CN 203979526U
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- China
- Prior art keywords
- spring
- valve
- valve body
- flap
- guide rod
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- Expired - Lifetime
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Abstract
本实用新型公开了一种轴流式止回阀，包括阀体、设于所述阀体内的导流罩、活动设置在所述阀体内的阀瓣以及为所述阀瓣提供弹力的弹簧；所述弹簧套设在与所述阀瓣固定连接的导向杆上，并与套设在所述导向杆上的弹簧座相抵；所述阀瓣在所述弹簧的弹力作用下封闭所述阀体的阀体通道；所述导流罩中心位置设有沿轴向设置的安装孔，所述安装孔内螺接安装有调整套；所述弹簧座以及所述导向杆远离所述阀瓣的一端设于所述调整套的中心孔内；所述弹簧及所述弹簧座的外径均小于所述安装孔的孔径，所述调整套上设有适于转动其的调整部。本实用新型的止回阀的弹簧预紧力可调，并且弹簧更换方便，具有很好的使用效果。
The utility model discloses an axial-flow check valve, which comprises a valve body, a guide cover arranged in the valve body, a valve clack movably arranged in the valve body, and a spring providing elastic force for the valve clack; The spring is sleeved on the guide rod fixedly connected with the valve disc, and resists the spring seat sleeved on the guide rod; the valve disc closes the valve body under the elastic force of the spring The channel of the valve body; the center position of the guide cover is provided with an axially arranged installation hole, and the adjustment sleeve is screwed in the installation hole; the spring seat and the end of the guide rod away from the valve disc Set in the center hole of the adjustment sleeve; the outer diameters of the spring and the spring seat are both smaller than the diameter of the installation hole, and the adjustment sleeve is provided with an adjustment part suitable for rotating it. The spring pre-tightening force of the check valve of the utility model is adjustable, and the spring is easy to replace, and has good use effect.
Description
Technical field
The utility model relates to a kind of axial flow type check valve, belongs to valve mechanism design field.
Background technique
Axial flow type check valve operates steadily with it, and flow resistance is little, and surge pressure is little, and fluidised form is good, and pressure medium is changed to fast response time, has the advantage such as low noise and good airproof performance.Be mainly used in, on the pipeline of medium one-way flow, belonging to self-acting valve class, be widely used in oil, gas, and the pump discharge such as defeated pipe network.Axial flow type check valve critical piece has valve body, flap, valve shaft and spring, its medi-spring is to have played crucial important effect, in the time that upstream does not have pressure medium, under the elastic force effect of spring, promote flap and move, make valve clack sealing surface and valve body sealing surface laminating and then form sealing.
The problem that existing axial flow type check valve exists is: along with the valve increase of service time, spring can due to original production problem, flow-induced corrosion problem, spring material problem etc. wherein the stack of a kind of problem or several problems make spring size depart from original design size, usually can be in for a long time the position of opening because of flap, spring is in the position of compression all the time, when pipeline system pressure drop, when safety check should cut out automatically, spring failure shortens and does not have enough elastic force to promote flap to reset, and then can not closed valve passage; In addition, axial flow type check valve in technology can only adapt to a kind of installation direction conventionally now, the level that is is installed needs generally can only level installing of design, for at right angle setting need to design generally can only at right angle setting, if because install and need the valve of design to want at right angle setting specially for level, the pretightening force hour of original spring, compressed at the lower spring of the downward gravity of flap, make valve clack sealing surface depart from the sealing surface of seat of valve body, valve cannot be realized automatically and closing.
Model utility content
To this, technical problem to be solved in the utility model is that existing axial flow type check valve causes valve can only adapt to specific installation direction because initial tension of spring is non-adjustable, and the problem of replacing spring inconvenience, thereby provide a kind of initial tension of spring adjustable, and change spring axial flow type check valve easily.
The technological scheme that realizes the utility model object is:
A kind of axial flow type check valve, comprises valve body, is located at air guide sleeve in described valve body, is movably arranged on flap in described valve body and provides the spring of elastic force for described flap; Described spring housing is located on the guide rod being fixedly connected with described flap, and offsets with the spring seat being set on described guide rod; Described flap seals the valve channel of described valve body under the elastic force effect of described spring;
Described air guide sleeve central position is provided with the mounting hole arranging vertically, in described mounting hole, is spirally connected adjusting sleeve is installed; Described spring seat and described guide rod are located at away from one end of described flap in the center hole of described adjusting sleeve; The external diameter of described spring and described spring seat is all less than the aperture of described mounting hole, and described adjusting sleeve is provided with the adjustment part that is suitable for rotating it.
In technique scheme, described adjustment part is to take shape in described adjusting sleeve away from the boss on the end face of described flap one end or hole.
In technique scheme, described guide rod and described flap are one-body molded.
In technique scheme, described air guide sleeve is spirally connected and is arranged on described valve inner.
The utlity model has positive effect: in (1) axial flow type check valve of the present utility model, on described air guide sleeve, be provided with mounting hole, described adjusting sleeve is spirally connected and is arranged in mounting hole, in the time of practical operation, can be according to actual conditions needs, change the pretightening force of spring thereby screw adjusting sleeve by adjustment part, can at right angle setting thereby valve can either level be installed also; In the time changing spring, first adjusting sleeve is pulled down, then spring seat and old spring are taken out from mounting hole, reinstall new spring, and without air guide sleeve is pulled down, so just make spring more change jobs more convenient.(2) in the utility model, described guide rod and described flap are one-body molded, by adopting this structure just can save the operation of assembling guide rod and flap, thereby increase work efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of axial flow type check valve of the present utility model.
Reference character shown in figure is: 1-valve body; 11-valve channel; 2-air guide sleeve; 21-mounting hole; 3-flap; 4-guide rod; 5-spring; 6-spring seat; 7-adjusting sleeve; 8-hole.
Embodiment
Below in conjunction with Figure of description, the concrete structure of axial flow type check valve of the present utility model is done to illustrate:
The axial flow type check valve of the present embodiment, as shown in Figure 1, it comprises valve body 1, be located at air guide sleeve 2 in described valve body 1, be movably arranged on flap 3 in described valve body 1 and provide the spring 5 of elastic force for described flap 3; Described spring 5 is set on the guide rod 4 being fixedly connected with described flap 3, and offsets with the spring seat 6 being set on described guide rod 4, and the effect of described guide rod 4 is to provide guiding for described flap 3; Described flap 3 seals the valve channel 11 of described valve body 1 under the elastic force effect of described spring 5; Described air guide sleeve 2 central positions are provided with the mounting hole 21 arranging vertically, in described mounting hole 21, be spirally connected adjusting sleeve 7 is installed; Described spring seat 6 and described guide rod 4 are located at away from one end of described flap 3 in the center hole of described adjusting sleeve 7; The external diameter of described spring 5 and described spring seat 6 is all less than the aperture of described mounting hole 21, and described adjusting sleeve 7 is provided with the adjustment part that is suitable for rotating it.In the axial flow safety check of the present embodiment, on described air guide sleeve 2, be provided with mounting hole 21, described adjusting sleeve 7 is spirally connected and is arranged in mounting hole 21, in the time of practical operation, can be according to actual conditions needs, change the pretightening force of springs 5 thereby screw adjusting sleeve 7 by adjustment part, can at right angle setting thereby valve can either level be installed also; In the time changing spring 5, first adjusting sleeve 7 is pulled down, then spring seat 6 and old spring are taken out from mounting hole 21 (because the external diameter of described spring 5 and described spring seat 6 is all less than the aperture of described mounting hole 21, therefore after adjusting sleeve 7 is pulled down, spring seat 6 and spring 5 just can take out from mounting hole 21), reinstall new spring, and without air guide sleeve 2 is pulled down, so just make spring 5 more change jobs more convenient.
In the present embodiment, described adjustment part is to take shape in described adjusting sleeve 7 away from the hole 8 on the end face of described flap 3 one end, in the time adjusting the pretightening force of spring 5 and change spring 5, instrument is inserted in described hole 8, and switching instrument can make adjusting sleeve 7 move vertically in rotating; In practice, described adjustment part can be also to take shape in the boss of described adjusting sleeve 7 away from described flap 3 one end.
Described guide rod 4 in the present embodiment is one-body molded with described flap 3, adopts this structure by saving the operation of assembling guide rod 4 and flap 3, thereby increases work efficiency, and can prevent from revealing; Certainly, in practical operation, also can adopt assembling mode that described guide rod 4 is connected with described flap 3.
Described air guide sleeve 2 in the present embodiment is spirally connected and is arranged on described valve body 1 inside, by adopting this structure to facilitate and reliably air guide sleeve 2 being arranged on to valve body 1 inside.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all mode of executions.And these belong to apparent variation or the variation that connotation of the present utility model extends out and still belong to protection domain of the present utility model.
Claims (4)
1. an axial flow type check valve, comprises valve body (1), is located at air guide sleeve (2) in described valve body (1), is movably arranged on flap (3) in described valve body (1) and provides the spring (5) of elastic force for described flap (3); It is upper that described spring (5) is set in the guide rod (4) being fixedly connected with described flap (3), and offset with the spring seat (6) being set on described guide rod (4); Described flap (3) seals the valve channel (11) of described valve body (1) under the elastic force effect of described spring (5);
It is characterized in that: described air guide sleeve (2) central position is provided with the mounting hole (21) arranging vertically, is spirally connected adjusting sleeve (7) is installed in described mounting hole (21); Described spring seat (6) and described guide rod (4) are located in the center hole of described adjusting sleeve (7) away from one end of described flap (3); The external diameter of described spring (5) and described spring seat (6) is all less than the aperture of described mounting hole (21), and described adjusting sleeve (7) is provided with the adjustment part that is suitable for rotating it.
2. axial flow type check valve according to claim 1, is characterized in that: described adjustment part is for to take shape in described adjusting sleeve (7) away from the boss on the end face of described flap (3) one end or hole (8).
3. axial flow type check valve according to claim 2, is characterized in that: described guide rod (4) is one-body molded with described flap (3).
4. axial flow type check valve according to claim 3, is characterized in that: described air guide sleeve (2) is spirally connected and is arranged on described valve body (1) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420418899.4U CN203979526U (en) | 2014-07-28 | 2014-07-28 | Axial flow type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420418899.4U CN203979526U (en) | 2014-07-28 | 2014-07-28 | Axial flow type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979526U true CN203979526U (en) | 2014-12-03 |
Family
ID=51976971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420418899.4U Expired - Lifetime CN203979526U (en) | 2014-07-28 | 2014-07-28 | Axial flow type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203979526U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107718A (en) * | 2019-04-28 | 2019-08-09 | 博工阀门有限公司 | A kind of Novel axial flow type check-valves |
| CN110762261A (en) * | 2019-11-28 | 2020-02-07 | 江苏上阀阀业有限公司 | Multifunctional Industrial Valve |
-
2014
- 2014-07-28 CN CN201420418899.4U patent/CN203979526U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107718A (en) * | 2019-04-28 | 2019-08-09 | 博工阀门有限公司 | A kind of Novel axial flow type check-valves |
| CN110107718B (en) * | 2019-04-28 | 2020-06-09 | 博工阀门有限公司 | Axial flow type check valve |
| CN110762261A (en) * | 2019-11-28 | 2020-02-07 | 江苏上阀阀业有限公司 | Multifunctional Industrial Valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |