CN203757090U - Self-closing check valve - Google Patents
Self-closing check valve Download PDFInfo
- Publication number
- CN203757090U CN203757090U CN201420137607.XU CN201420137607U CN203757090U CN 203757090 U CN203757090 U CN 203757090U CN 201420137607 U CN201420137607 U CN 201420137607U CN 203757090 U CN203757090 U CN 203757090U
- Authority
- CN
- China
- Prior art keywords
- self
- plunger
- safety check
- valve casing
- check valve
- 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
Links
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a self-closing check valve. The self-closing check valve comprises a valve casing, a plunger, a spring and a seal cover. The plunger is in sliding connection with the valve casing. A liquid inlet tube, a liquid outlet tube and a hole shoulder are arranged on the valve casing, the hole shoulder is arranged between the liquid inlet tube and the liquid outlet tube, and a valve plate is arranged on the plunger. One end of the spring is connected with the seal cover which is connected with the valve casing. The self-closing check valve has the advantages that the spring is arranged, so that the valve plate can be closed automatically, and the whole check valve reliability is improved, backflow of the fluid is prevented; meanwhile, a lever structure formed by a hand lever is arranged, so that the check valve is rapid to open and effort saving.
Description
Technical field
The utility model relates to a kind of safety check, more precisely a kind of self-closing safety check.
Background technique
A large amount of equipment such as pneumatic gun, pneumatic mallet, hydraulic hammer that use in factory, the switch essence of these air pressure or hydraulic equipment is a kind of safety check, but safety check of the prior art does not have self-closed structure, need to rely on external equipment to carry out throttle down, structure is comparatively complicated, and it is unreliable to use, and does not have foolproof function, can not close in time, the energy of waste is more.
Model utility content
The utility model is mainly to solve the existing technical problem of prior art, thereby provides a kind of with spring, can self acting stop valve plate, improved the reliability of whole safety check, prevent that fluid from flowing backwards, the lever construction simultaneously forming with handle, opens fast and labour-saving self-closing safety check.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of self-closing safety check, comprise a valve casing and a plunger, described plunger and described valve casing are slidably connected, on described valve casing, be provided with a liquid inlet pipe, a drain pipe and hole shoulder, between liquid inlet pipe described in described hole shoulder is arranged on and described drain pipe, on described plunger, be provided with a valve plate, described self-closing safety check also comprises a spring and a capping, one end of described spring is connected with described valve plate, the other end is connected with described capping, and described capping is connected with described valve casing.
As the utility model preferred embodiment, a side of described valve plate is provided with a conical seal (contact) face.
As the utility model preferred embodiment, described self-closing safety check also comprises one handle, on described valve casing, be provided with two engaging lugs, one end of described handle is connected with described engaging lug, directly over the plunger described in described handle is arranged on.
As the utility model preferred embodiment, the upper end of described plunger comprises a domed ends.
The advantage of self-closing safety check of the present utility model is: with spring, can self acting stop valve plate, and improved the reliability of whole safety check, prevent that fluid from flowing backwards, the lever construction simultaneously forming with handle, opens quick and laborsaving.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the perspective view of self-closing safety check of the present utility model;
Fig. 2 is the sectional view of the self-closing safety check in Fig. 1;
Fig. 3 is the perspective view of the valve casing in Fig. 1;
Fig. 4 is the perspective view of the plunger in Fig. 1;
Wherein:
1, valve casing; 11, liquid inlet pipe; 12, drain pipe; 13, hole shoulder; 14, engaging lug;
2, plunger; 21, valve plate; 211, conical seal (contact) face; 22, domed ends;
3, handle; 4, spring; 5, capping.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection domain of the present utility model is made to more explicit defining.
The advantage of self-closing safety check of the present utility model is: with spring, can self acting stop valve plate, and improved the reliability of whole safety check, prevent that fluid from flowing backwards, the lever construction simultaneously forming with handle, opens quick and laborsaving.
As Fig. 1, shown in Fig. 2, a kind of self-closing safety check, comprise a valve casing 1 and a plunger 2, this plunger 2 is slidably connected with this valve casing 1, as Fig. 2, shown in Fig. 3, on this valve casing 1, be provided with a liquid inlet pipe 11, one drain pipe 12 and hole shoulder 13, this hole shoulder 13 is arranged between this liquid inlet pipe 11 and this drain pipe 12, as shown in Figure 4, on this plunger 2, be provided with a valve plate 21, this as shown in Figure 2, self-closing safety check also comprises a spring 4 and a capping 5, one end of this spring 4 is connected with this valve plate 21, the other end is connected with this capping 5, this capping 5 is connected with this valve casing 1.This spring 4 can promote this valve plate 21 and close this self-closing safety check, to pressing down this plunger 2, can open this self-closing safety check.
As shown in Figure 4, a side of this valve plate 21 is provided with a conical seal (contact) face 211.Fluid flows to the below of this plunger 2 from the top of this plunger 2, be following current, otherwise be adverse current, the resistance when this conical seal (contact) face 211 being set can reducing following current, the sealing effect while increasing adverse current.
As shown in Figure 1, Figure 2, Figure 3 shows, this self-closing safety check also comprises one handle 3, is provided with two engaging lugs 14 on this valve casing 1, and one end of this handle 3 is connected with this engaging lug 14, this handle 3 be arranged on this plunger 2 directly over.This handle 3 forms lever construction, more laborsaving quick while pressing this plunger 2.
As Figure 1 and Figure 4, the upper end of this plunger 2 comprises a domed ends 22.In pressing the process of this handle 3, can there is sliding phenomenon with respect to this handle 3 in the upper end of this plunger 2, this domed ends 22 is set and can effectively avoids this plunger 2 and this handle 3 that stuck phenomenon occurs, and reduces resistance simultaneously, improves simple operation.
Below only with a mode of execution, mentality of designing of the present utility model is described, in the situation that system allows, the utility model can expand to external more function module simultaneously, thereby expands to greatest extent its function.
The above, be only embodiment of the present utility model, but protection domain of the present utility model is not limited to this, and any variation of expecting without creative work or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims were limited.
Claims (4)
1. a self-closing safety check, comprise a valve casing (1) and a plunger (2), described plunger (2) is slidably connected with described valve casing (1), it is characterized in that: on described valve casing (1), be provided with a liquid inlet pipe (11), one drain pipe (12) and hole shoulder (13), between liquid inlet pipe (11) described in described hole shoulder (13) is arranged on and described drain pipe (12), on described plunger (2), be provided with a valve plate (21), described self-closing safety check also comprises a spring (4) and a capping (5), one end of described spring (4) is connected with described valve plate (21), the other end is connected with described capping (5), described capping (5) is connected with described valve casing (1).
2. self-closing safety check according to claim 1, is characterized in that: a side of described valve plate (21) is provided with a conical seal (contact) face (211).
3. self-closing safety check according to claim 1, it is characterized in that: described self-closing safety check also comprises one handle (3), on described valve casing (1), be provided with two engaging lugs (14), one end of described handle (3) is connected with described engaging lug (14), directly over the plunger (2) described in described handle (3) is arranged on.
4. self-closing safety check according to claim 3, is characterized in that: the upper end of described plunger (2) comprises a domed ends (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420137607.XU CN203757090U (en) | 2014-03-25 | 2014-03-25 | Self-closing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420137607.XU CN203757090U (en) | 2014-03-25 | 2014-03-25 | Self-closing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203757090U true CN203757090U (en) | 2014-08-06 |
Family
ID=51252369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420137607.XU Expired - Fee Related CN203757090U (en) | 2014-03-25 | 2014-03-25 | Self-closing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203757090U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107206381A (en) * | 2015-02-20 | 2017-09-26 | 文塔纳医疗系统公司 | Components for storing and transporting tissue samples submerged in fluid |
| CN109323111A (en) * | 2018-09-27 | 2019-02-12 | 扬州市艾力达机电制造有限公司 | A kind of alternating current generator internal lubrication oil bringing device and its applying method |
-
2014
- 2014-03-25 CN CN201420137607.XU patent/CN203757090U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107206381A (en) * | 2015-02-20 | 2017-09-26 | 文塔纳医疗系统公司 | Components for storing and transporting tissue samples submerged in fluid |
| US10983034B2 (en) | 2015-02-20 | 2021-04-20 | Ventana Medical Systems, Inc. | Assembly for storing and transporting tissue samples immersed in a fluid |
| CN109323111A (en) * | 2018-09-27 | 2019-02-12 | 扬州市艾力达机电制造有限公司 | A kind of alternating current generator internal lubrication oil bringing device and its applying method |
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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: 20140806 Termination date: 20150325 |
|
| EXPY | Termination of patent right or utility model |