CN202580085U - Manual sealing air valve - Google Patents
Manual sealing air valve Download PDFInfo
- Publication number
- CN202580085U CN202580085U CN 201220032207 CN201220032207U CN202580085U CN 202580085 U CN202580085 U CN 202580085U CN 201220032207 CN201220032207 CN 201220032207 CN 201220032207 U CN201220032207 U CN 201220032207U CN 202580085 U CN202580085 U CN 202580085U
- Authority
- CN
- China
- Prior art keywords
- valve
- guide sleeve
- spool
- air valve
- rod
- 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 - Fee Related
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- Multiple-Way Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to the technical field of air valve manufacture, in particular to a manual sealing air valve, which comprises a valve body (1) and a valve core (2), wherein the valve body (1) is provided with an air inlet (11) and an air outlet (12), the upper end part of the valve core (2) is provided with a guide sleeve (4), and the inner wall of the valve core (2) is nested with a valve rod (3). The manual sealing air valve is characterized in that an upper sealing post (33) and a lower sealing post (34) are arranged on the valve rod (3), the upper sealing post (33) is tightly matched with the inner wall of the valve core (2), the upper end part of the valve rod (3) is provided with a flat connecting rod (31), the flat connecting rod (31) is nested on the inner wall of the guide sleeve (4) and extends out of the guide sleeve (4), and the upper end part of the flat connecting rod (31) is nested with a knob (5) tightly buckled with the guide sleeve (3). The manual sealing air valve has the advantages that the structure is simple, the arrangement is reasonable, the manufacture cost is low, and the like.
Description
Technical field
The utility model relates to air valve manufacturing technology field, particularly a kind of manual sealing air valve.
Background technique
In gas transmission or pneumatic control field, the height of air valve quality and performance will directly influence the normal operation of gas transmission safety and pneumatic system.Popular in the market air valve is by an end air inlet, behind the valve core cavity passage, exports by the other end, it " by valve body, push rod; button, O type pad, stage clip is formed, and an end of valve body is established outside thread; through hole is established in the valve body axle center, and outer screw thread one end has central small hole, and concentric becomes gross porosity again; stage clip is set in the gross porosity, and push rod passes central small hole, passes stage clip and is connected fixing with button; an end of stage clip withstands on the valve body small bore end, and the other end withstands on the button, utilizes the elastic force of stage clip to make the O type pad on the push rod contact closing seam with the valve body end face." still, what this product adopted is the end face seal mode, promptly its O shape pad contacts closure with the valve body end face, and this structure has following deficiency: the one, sealability depends on the pressure that contacts end face; The 2nd, easy ageing lost efficacy O shape pad owing to long-term pressurized; The 3rd, impurity is prone to cause seal failure after being embedded in the contact end face.As run into some flammable gas leakages, can there be sizable potential safety hazard.Gu how to improve the sealing of air valve, how to make problems such as air valve is more safe and reliable become the focus of research in the industry.
The model utility content
The purpose of the utility model is defective and the deficiency to existing technology, provides a kind of simple in structure, a kind of manual sealing air valve reasonable in design, easy to use.
For realizing above-mentioned purpose, the technological scheme that the utility model adopts is:
The described a kind of manual sealing air valve of the utility model; Comprise valve body and spool, said valve body is provided with suction port and air outlet, and said spool upper end portion is provided with guide sleeve; Said spool inwall is nested with valve rod; Said valve rod is provided with sealing column and lower seal post, and said upward sealing column and spool inwall closely cooperate, and said valve rod upper end portion is provided with flat connecting rod; Said flat connecting rod is nested in the guide sleeve inwall and stretches out in guide sleeve, and said flat small end portion is embedded in the knob that said guide sleeve closely interlocks.
Further, said going up on the sealing column radially is provided with groove A, is provided with seal ring in the groove A.
Further, radially be provided with groove B on the said lower seal post, be provided with lower seal in the groove B.
Further, said valve rod axial wall is provided with pilot pin, and said guide sleeve inwall is provided with corresponding guide chute with pilot pin, and said guide chute becomes screw type to extend.
After adopting said structure, the utility model beneficial effect is: the described a kind of manual sealing air valve of the utility model comprises valve body, spool and valve rod; Said valve rod is provided with sealing column and lower seal post, radially is provided with groove B on the said lower seal post, is provided with lower seal in the groove B; When using the utility model, the sealing of whole air valve relies on the spool inwall fully and contacts with the lower seal peripheral wall and realize that the lower seal contact stress is little; Distortion is few, long service life.Simultaneously, the lower seal in the work often moves up and down at the spool inwall, has cleared up the impurity that adheres to said spool inwall automatically, guarantees the proper functioning of seal arrangement.The utlity model has simple in structurely, be provided with rationally, advantage such as fabricating cost is low.
Description of drawings
Fig. 1 is the utility model on state structural representation;
Fig. 2 is the utility model closed condition structural representation;
Description of reference numerals:
1, valve body; 11, suction port; 12, air outlet; 2, spool; 3, valve rod; 31, flat connecting rod; 32, pilot pin; 33, go up sealing column; 34, lower seal post; 4, guide sleeve; 41, guide chute; 5, knob; 6, go up seal ring; 7, lower seal.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Like Fig. 1, shown in Figure 2, the described a kind of manual sealing air valve of the utility model comprises valve body 1 and spool 2; Said valve body 1 is provided with suction port 11 and air outlet 12, and said spool 2 upper end portions are provided with guide sleeve 4, and said spool 2 inwalls are nested with valve rod 3; Said valve rod 3 is provided with sealing column 33 and lower seal post 34; The said sealing column 33 that goes up closely cooperates with spool 2 internal chamber walls, and said valve rod 3 upper end portions are provided with flat connecting rod 31, and said flat connecting rod 31 is nested in guide sleeve 4 inwalls and stretches out in guide sleeve 4; Said flat connecting rod 31 upper end portions are embedded in the knob 5 that said guide sleeve 3 closely interlocks, the agent structure of above-mentioned formation the utility model.
Said going up on the sealing column 33 radially is provided with groove A, is provided with seal ring 6 in the groove A, and last seal ring 6 closely cooperates with valve body 1 inwall, thus with valve body 1 inner chamber to external sealed, avoided the interior gas of valve body 1 from valve rod 3 leakages.
Radially be provided with groove B on the said lower seal post 34, be provided with lower seal 7 in the groove B, when air valve was in closed condition, the sealing of whole air valve relied on said spool 2 inwalls fully and contacts with lower seal 7 peripheral wall and realize.Simultaneously, the lower seal 7 in the work often moves up and down at spool 2 inwalls, has cleared up the impurity that adheres to said spool 2 inwalls automatically, guarantees the proper functioning of seal arrangement.
Said valve rod 3 axial walls are provided with pilot pin 32, and said guide sleeve 4 inwalls are provided with and pilot pin 32 corresponding guide chutes 41, and 41 one-tenth screw types of said guide chute are extended.Mainly be to be convenient to after knob 5 drives flat connecting rod 31 rotations whole valve rod 3 rotated in the lump, thereby realize the on off state of air valve.
Working principle
As shown in Figure 1, when the utility model was on state, gas was got into by said suction port 11, and the opened gap between said spool 2 lower ends and said valve rod 3 lower seal posts 34 is by 12 outputs of said air outlet.
When closing air flue like need; The said knob 5 that turns clockwise drives said flat connecting rod 31 and rotates in the lump together with said valve rod 3, and this moment, said valve rod 3 pilot pins 32 received said guide chute 41 guiding; In rotation, move up, until arriving closed condition as shown in Figure 2.
During with the utility model sealing gas, not only can play good seal action, reduce the distortion of seal ring, improve working life, also can clear up the impurity that adheres to said spool inwall automatically, guarantee the proper functioning of seal arrangement.In addition, this is simple in structure, reasonable in design, low cost of manufacture.
The above only is the preferred embodiments of the utility model, so all equivalences of doing according to the described structure of the utility model patent claim, characteristic and principle change or modify, includes in the utility model patent claim.
Claims (4)
1. one kind manually seals air valve; Comprise valve body (1) and spool (2), said valve body (1) is provided with suction port (11) and air outlet (12), and said spool (2) upper end portion is provided with guide sleeve (4); Said spool (2) inwall is nested with valve rod (3); It is characterized in that: said valve rod (3) is provided with sealing column (33) and lower seal post (34), and the said sealing column (33) that goes up closely cooperates with spool (2) inwall, and said valve rod (3) upper end portion is provided with flat connecting rod (31); Said flat connecting rod (31) is nested in guide sleeve (4) inwall and stretches out in guide sleeve (4), and said flat connecting rod (31) upper end portion is embedded in the knob (5) that said guide sleeve (3) closely interlocks.
2. a kind of manual sealing air valve according to claim 1 is characterized in that: said going up on the sealing column (33) radially is provided with groove A, is provided with seal ring (6) in the groove A.
3. a kind of manual sealing air valve according to claim 1 is characterized in that: radially be provided with groove B on the said lower seal post (34), be provided with lower seal (7) in the groove B.
4. a kind of manual sealing air valve according to claim 1 is characterized in that: said valve rod (3) axial wall is provided with pilot pin (32), and said guide sleeve (4) inwall is provided with and the corresponding guide chute of pilot pin (32) (41), and said guide chute (41) becomes screw type to extend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220032207 CN202580085U (en) | 2012-01-30 | 2012-01-30 | Manual sealing air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220032207 CN202580085U (en) | 2012-01-30 | 2012-01-30 | Manual sealing air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202580085U true CN202580085U (en) | 2012-12-05 |
Family
ID=47249498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220032207 Expired - Fee Related CN202580085U (en) | 2012-01-30 | 2012-01-30 | Manual sealing air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202580085U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775667A (en) * | 2014-01-22 | 2014-05-07 | 南通爱慕希机械有限公司 | Adjustable throttling valve |
| CN104033615A (en) * | 2014-05-21 | 2014-09-10 | 杭州中能汽轮动力有限公司 | Double-seat throttling guide type governing steam valve |
-
2012
- 2012-01-30 CN CN 201220032207 patent/CN202580085U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775667A (en) * | 2014-01-22 | 2014-05-07 | 南通爱慕希机械有限公司 | Adjustable throttling valve |
| CN104033615A (en) * | 2014-05-21 | 2014-09-10 | 杭州中能汽轮动力有限公司 | Double-seat throttling guide type governing steam valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20150130 |
|
| EXPY | Termination of patent right or utility model |