CN203202319U - Medical single-way valve - Google Patents
Medical single-way valve Download PDFInfo
- Publication number
- CN203202319U CN203202319U CN 201320134214 CN201320134214U CN203202319U CN 203202319 U CN203202319 U CN 203202319U CN 201320134214 CN201320134214 CN 201320134214 CN 201320134214 U CN201320134214 U CN 201320134214U CN 203202319 U CN203202319 U CN 203202319U
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- China
- Prior art keywords
- valve
- cylindrical section
- cone
- valve body
- spool
- Prior art date
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Abstract
The utility model provides a medical single-way valve, and belongs to the medical equipment. The medical single-way valve comprises a valve body, a valve cover and a valve core, wherein the valve cover is sleeved on the valve body, a cylindrical valve cavity is defined through the valve body and the valve cover in an enclosed mode, the valve core is located inside the valve cavity, the valve body is provided with an inlet channel, and the valve cover is provided with an outlet channel. The valve core comprises a first cylindrical section and a second cylindrical section which is connected with the first cylindrical section through a plurality of elastic strips distributed in the circumferential direction, the first cylindrical section is provided with an axial through hole, the second cylindrical section is provided with a cone, a position communicated with the valve cavity, of the inlet channel is provided with a cone-shaped port having the same conicity with the cone, and the cone abuts against the cone-shaped port. The first cylindrical section abuts against the valve cover, and the valve core composed of the first cylindrical section, the second cylindrical section, the elastic strips and the cone is of an integral structure and formed through high-elasticity silicon rubber. The medical single-way valve has the advantages of being simple in structure, low in manufacturing cost, and free of a metal spring.
Description
Technical field:
The utility model relates to a kind of medical apparatus, specifically is a kind of Medical check valve.
Background technique:
At medical field, one-way valve is widely used in the systems such as haemodialysis, extracorporal circulatory system, mainly plays the effect of control liquid one-way flowing, at present, normally used one-way valve generally is comprised of valve body, valve gap, spool, metal spring, silica gel sealing ring, leads to come the metal spring pressed spool to seal, because the one-way valve volume is tiny, complex structure, so the required precision to part is high, manufacture cost is also higher, in addition, metal spring easily gets rusty, and easily produces and pollutes.
The model utility content:
The technical problems to be solved in the utility model is, provide a kind of simple in structure, manufacture cost is lower, without the Medical check valve of metal spring.
Technical solution of the present utility model is, provide a kind of Medical check valve with following structure: comprise valve body, valve gap and spool, valve gap is socketed on the valve body, surround columniform valve pocket between valve body and the valve gap, spool is positioned at valve pocket, valve body is provided with inlet passage, valve gap is provided with outlet passage, wherein, spool comprises the first cylindrical section and the second cylindrical section, be connected by a plurality of elastic strips that circumferentially distribute between the first cylindrical section and the second cylindrical section, the first cylindrical section is provided with axial hole, the second cylindrical section is provided with cone, inlet passage is provided with the taper mouth identical with the tapering of cone with the connectivity part of valve pocket, cone withstands on the taper mouth, and the first cylindrical section withstands on the valve gap, by the first cylindrical section, the second cylindrical section, the spool that a plurality of elastic strips and cone form is an overall structure and makes moulding by elastomeric silicone rubber.
Medical check valve described in the utility model, wherein, the periphery of the second cylindrical section is provided with the annular seal boss, and the left side that is positioned at the annular seal boss on the inwall of valve body is provided with guiding gutter.
After adopting above structure, compared with prior art, the utility model Medical check valve has the following advantages: owing to only having a spool parts in the valve pocket, part is less, and spool is to make moulding by elastomeric silicone rubber, elastic strip on the spool can become straight configuration under the state that does not stress, valve core structure is simpler, therefore, manufacturing and assembly cost are lower, in addition, the utility model Medical check valve utilizes the elastic force of the elastic strip on the spool to replace the effect of metal spring, has saved metal spring and has eliminated the pollution of getting rusty and producing because of metal spring.
The effect of annular seal boss and guiding gutter is: the annular seal boss can make between the second cylindrical section and the valve interior wall and produce seal action, the valve pocket of the second cylindrical section both sides is separated, except the sealing at cone and taper mouth place, increased again by place's sealing means, increased the Security of sealing, when the second cylindrical section was moved to the left the annular seal boss that makes on it and is moved to the left on the guiding gutter, the valve pocket of the second cylindrical section both sides at this moment can communicate by guiding gutter.
Description of drawings:
Fig. 1 is the sectional structure schematic diagram of the utility model Medical check valve.
Embodiment:
Below in conjunction with the drawings and specific embodiments the utility model Medical check valve is described further:
As shown in Figure 1, in this embodiment, the utility model Medical check valve comprises valve body 8, valve gap 4 and spool, valve gap 4 is socketed on the valve body, surround columniform valve pocket 5 between valve body 8 and the valve gap 4, spool is positioned at valve pocket 5, valve body 8 is provided with inlet passage 11, valve gap 4 is provided with outlet passage 1, spool comprises the first cylindrical section 3 and the second cylindrical section 7, be connected by a plurality of elastic strips 6 that circumferentially distribute between the first cylindrical section 3 and the second cylindrical section 7, the first cylindrical section 3 is provided with axial hole 2, the second cylindrical section 7 is provided with cone 10, inlet passage 11 is provided with the taper mouth 9 identical with the tapering of cone 10 with the connectivity part of valve pocket 5, cone 10 withstands on the taper mouth 9, the first cylindrical section 3 withstands on the valve gap 4, by the first cylindrical section 3, the second cylindrical section 7, the spool that six elastic strips 6 and cone 10 form is an overall structure and makes moulding by elastomeric silicone rubber, the periphery of the second cylindrical section 7 is provided with annular seal boss 12, and the left side that is positioned at annular seal boss 12 on the inwall of valve body 8 is provided with guiding gutter 13.
The working principle of the utility model Medical check valve is, flowing into liquid mediums in the inlet passage 11 can promote the second cylindrical section 7 and be moved to the left, when annular seal boss 12 is moved to the left on the guiding gutter 13, the valve pocket 5 of the second cylindrical section 7 both sides can communicate by guiding gutter 13, elastic strip 6 can buckle simultaneously, at this moment the liquid medium in the inlet passage 11 can flow into by the gap that separates between cone 10 and the taper mouth 9 in the valve pocket 5 on the second cylindrical section 7 right sides, flow in the valve pocket 5 in the second cylindrical section 7 left sides through guiding gutter 13 again, flow into outlet passage 1 through axial hole 2 again, otherwise, under the effect of the elastic force of elastic strip 6, cone 10 is pressed on the taper mouth 9, annular seal boss 12 moves to guiding gutter 13 right sides, realized sealing, so liquid medium can only flow to outlet passage 1 one-way flow by inlet passage 11.
Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.
Claims (2)
1. Medical check valve, comprise valve body (8), valve gap (4) and spool, described valve gap (4) is socketed on the valve body, surround columniform valve pocket (5) between described valve body (8) and the valve gap (4), described spool is positioned at valve pocket (5), described valve body (8) is provided with inlet passage (11), described valve gap (4) is provided with outlet passage (1), it is characterized in that: described spool comprises the first cylindrical section (3) and the second cylindrical section (7), be connected by a plurality of elastic strips (6) that circumferentially distribute between described the first cylindrical section (3) and the second cylindrical section (7), described the first cylindrical section (3) is provided with axial hole (2), described the second cylindrical section (7) is provided with cone (10), described inlet passage (11) is provided with the taper mouth (9) identical with the tapering of cone (10) with the connectivity part of valve pocket (5), described cone (10) withstands on the taper mouth (9), described the first cylindrical section (3) withstands on the valve gap (4), and is described by the first cylindrical section (3), the second cylindrical section (7), the spool that a plurality of elastic strips (6) and cone (10) form is an overall structure and makes moulding by elastomeric silicone rubber.
2. Medical check valve according to claim 1, it is characterized in that: the periphery of described the second cylindrical section (7) is provided with annular seal boss (12), and the left side that is positioned at annular seal boss (12) on the inwall of described valve body (8) is provided with guiding gutter (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320134214 CN203202319U (en) | 2013-03-15 | 2013-03-15 | Medical single-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320134214 CN203202319U (en) | 2013-03-15 | 2013-03-15 | Medical single-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203202319U true CN203202319U (en) | 2013-09-18 |
Family
ID=49146428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320134214 Expired - Fee Related CN203202319U (en) | 2013-03-15 | 2013-03-15 | Medical single-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203202319U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084264A (en) * | 2017-05-18 | 2017-08-22 | 长沙执先智量科技股份有限公司 | A kind of sanitation-grade check valve |
| WO2017185373A1 (en) * | 2016-04-29 | 2017-11-02 | 深圳市大疆创新科技有限公司 | Pressure accumulation sealing mechanism and nozzle apparatus |
| WO2020077949A1 (en) * | 2018-10-19 | 2020-04-23 | 惠州海卓科赛医疗有限公司 | Valve plug, high-pressure pump structure, and valve plug sealing method |
-
2013
- 2013-03-15 CN CN 201320134214 patent/CN203202319U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017185373A1 (en) * | 2016-04-29 | 2017-11-02 | 深圳市大疆创新科技有限公司 | Pressure accumulation sealing mechanism and nozzle apparatus |
| CN107466252A (en) * | 2016-04-29 | 2017-12-12 | 深圳市大疆创新科技有限公司 | Pressure accumulation sealing mechanism and ejecting device |
| CN107466252B (en) * | 2016-04-29 | 2019-05-31 | 深圳市大疆创新科技有限公司 | Pressure accumulation sealing mechanism and ejecting device |
| CN107084264A (en) * | 2017-05-18 | 2017-08-22 | 长沙执先智量科技股份有限公司 | A kind of sanitation-grade check valve |
| WO2020077949A1 (en) * | 2018-10-19 | 2020-04-23 | 惠州海卓科赛医疗有限公司 | Valve plug, high-pressure pump structure, and valve plug sealing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20140315 |