CN204592399U - Seal firm valve - Google Patents
Seal firm valve Download PDFInfo
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- CN204592399U CN204592399U CN201520051003.8U CN201520051003U CN204592399U CN 204592399 U CN204592399 U CN 204592399U CN 201520051003 U CN201520051003 U CN 201520051003U CN 204592399 U CN204592399 U CN 204592399U
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- valve
- seal
- groove
- firm
- sealed step
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Abstract
The utility model embodiment discloses and a kind ofly seals firm valve, relates to valve technology field.The utility model embodiment is a kind of seals firm valve, comprises the valve body with pipeline, and valve body is provided with the switching valve rod with seal arrangement, and on pipeline, corresponding seal arrangement is provided with sealed step; Described seal arrangement comprises the seal coordinated with described sealed step, and described sealed step is provided with groove, and the periphery holding of described seal is in described groove.The utility model is mainly used in valve, as three-way valve.
Description
Technical field
The utility model relates to valve technology field, particularly relates to the valve that sealing is firm.
Background technique
Valve uses very general in pipeline field, the common valve of existing one-way conduction, also has the valve of multi-way conduction, as three-way valve.Use valve rod to carry out in the valve switched, after the switching of valve puts in place, need the seal arrangement on guarantee valve rod and valve internal to seal firm, just there will not be leakage problem.
In existing valve, generally that communicating passage is set at valve internal, and design sealed step in the channel, then the seal arrangement on valve rod and the sealed step in passage are carried out gluing, sealing, it is made to leak, more than adopt the valve seal performance of above scheme or poor, easily occur the situation that sealing is not in place.
Model utility content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art and provides a kind of firm valve that seals, and improves the sealability of valve.
For achieving the above object, the utility model adopts following technological scheme:
Seal a firm valve, comprise the valve body with pipeline, valve body is provided with the switching valve rod with seal arrangement, and on pipeline, corresponding seal arrangement is provided with sealed step; Described seal arrangement comprises the seal coordinated with described sealed step, and described sealed step is provided with groove, and the periphery holding of described seal is in described groove.
The periphery of described seal and two of groove sidewalls are fitted respectively.
Described seal arrangement also comprises the fixed plate being arranged on seal bi-side, and described fixing plate clamp fastens described seal.
The periphery of described seal is the seal ring of circular arc.
Described fixed plate external diameter is less than the external diameter of described seal, and seal ring described in clamping part.
On described fixed plate, corresponding seal ring is provided with containing groove, is out of shape when described seal ring is extruded to described containing groove.
Described valve is three-way valve, and described pipeline is provided with two described sealed step.
The valve that the sealing that the utility model provides is firm, owing to being provided with groove in sealed step, make the periphery holding of seal in described groove, the both sides that so just can make seal periphery all with groove gluing, sealing, achieve dual face seals, thus improve the reliability of sealing; And adopt groove to block seal, the probability that seal comes off can be reduced, also improve sealing reliability.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is valve mechanism schematic diagram in the utility model embodiment;
Fig. 2 is A-A sectional view in Fig. 1;
Fig. 3 is I part partial enlarged drawing in Fig. 2.
Reference character: 10-valve body, 11-pipeline, 12-sealed step, 13-groove, 20-switches valve rod, 21-seal, 22-fixed plate, 23-containing groove.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides a kind of and seals firm valve, as shown in Figure 1, Figure 2 and Figure 3, this valve comprises the valve body 10 with pipeline 11, pipeline generally has runner mouth, to be communicated with external pipe, valve body is provided with the switching valve rod 20 with seal arrangement, on pipeline 11, corresponding seal arrangement is provided with sealed step 12, by switching valve rod 20, seal arrangement being pushed in sealed step 12, seal arrangement being sealed sealed step, prevents valve body from revealing.In order to improve the reliability of sealing, as shown in Figure 2, in the utility model embodiment, seal arrangement comprises the seal 21 coordinated with described sealed step 12, and described sealed step 12 is provided with groove 13, and the periphery holding of described seal 21 is in described groove 13.Owing to being provided with groove in sealed step 12, make the periphery holding of seal in described groove, and two sidewalls of the periphery of seal and groove are fitted respectively, the both sides that so just can make seal periphery all with groove gluing, sealing, achieve dual face seals, thus improve the reliability of sealing.
As shown in Figure 3, the utility model embodiment seal arrangement comprises fixed plate 22 and seal 21, and fixed plate 22 is arranged on seal 21 bi-side, to be fixedly clamped described seal 21 by fixed plate 22, due to fixed plate 22 pinch seal body 21, make seal under Long-Time Service, be not easy distortion, extend the life-span of seal arrangement.
In order to ensure the sealability of seal and sealed step, the periphery of seal 21 is designed to the seal ring of circular arc by the utility model, and the cross section of namely seal forms the crown body body structure shown in figure.In order to improve sealability, in the utility model, fixed plate 22 external diameter is less than the external diameter of described seal 21, thus can not the contact of baffle seal body and sealed step, seal ring described in clamping part gone back by fixed plate 22, make to promote, in seal ring process, dislocation is less likely to occur, ensure that seal ring is made and be fitted in sealed step.
Due to sealed step having groove, valve body when switching needs seal to push groove, obvious distortion can be there is in this procedure seals body periphery, in order to ensure that handoff procedure is comparatively smooth, the utility model embodiment corresponding seal ring on fixed plate 22 is provided with containing groove 23, be out of shape to described containing groove 23 when described seal ring is extruded, thus make seal ring can enter into groove smoothly, after seal ring enters groove, just utilize natural resiliency to recover from containing groove, maintenance closely cooperates with groove, thus ensures good sealing.
Valve in this use new embodiment is three-way valve, specifically see Fig. 2, is provided with two described sealed step in the pipeline of three-way valve, thus can seal well under making two of three-way valve on states.Certain the utility model embodiment can also for other valves, and concrete principle is similar, do not pluck herein and repeat.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (7)
1. the valve that sealing is firm, comprise the valve body with pipeline, valve body is provided with the switching valve rod with seal arrangement, and on pipeline, corresponding seal arrangement is provided with sealed step; It is characterized in that, described seal arrangement comprises the seal coordinated with described sealed step, and described sealed step is provided with groove, and the periphery holding of described seal is in described groove.
2. the valve that sealing according to claim 1 is firm, is characterized in that, the periphery of described seal and two of groove sidewalls are fitted respectively.
3. the valve that sealing according to claim 1 is firm, is characterized in that, described seal arrangement also comprises the fixed plate being arranged on seal bi-side, and described fixing plate clamp fastens described seal.
4. the valve that sealing according to claim 2 is firm, is characterized in that, the periphery of described seal is the seal ring of circular arc.
5. the valve that sealing according to claim 3 is firm, is characterized in that, described fixed plate external diameter is less than the external diameter of described seal, and seal ring described in clamping part.
6. the valve that sealing according to claim 5 is firm, is characterized in that, on described fixed plate, corresponding seal ring is provided with containing groove, is out of shape when described seal ring is extruded to described containing groove.
7. the valve that sealing as claimed in any of claims 1 to 6 is firm, is characterized in that, described valve is three-way valve, and described pipeline is provided with two described sealed step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520051003.8U CN204592399U (en) | 2015-01-15 | 2015-01-15 | Seal firm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520051003.8U CN204592399U (en) | 2015-01-15 | 2015-01-15 | Seal firm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204592399U true CN204592399U (en) | 2015-08-26 |
Family
ID=53928551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520051003.8U Active CN204592399U (en) | 2015-01-15 | 2015-01-15 | Seal firm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204592399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641276A (en) * | 2016-11-24 | 2017-05-10 | 江苏必得科技股份有限公司 | Sealing structure of air outlet of waste discharging unit of railway vehicle |
-
2015
- 2015-01-15 CN CN201520051003.8U patent/CN204592399U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641276A (en) * | 2016-11-24 | 2017-05-10 | 江苏必得科技股份有限公司 | Sealing structure of air outlet of waste discharging unit of railway vehicle |
| CN106641276B (en) * | 2016-11-24 | 2018-08-24 | 江苏必得科技股份有限公司 | The sealing structure of the useless row's unit air outlet of rail vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |