CN103322245A - Miniature low-pressure self-lock check valve - Google Patents
Miniature low-pressure self-lock check valve Download PDFInfo
- Publication number
- CN103322245A CN103322245A CN2013102526534A CN201310252653A CN103322245A CN 103322245 A CN103322245 A CN 103322245A CN 2013102526534 A CN2013102526534 A CN 2013102526534A CN 201310252653 A CN201310252653 A CN 201310252653A CN 103322245 A CN103322245 A CN 103322245A
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- Prior art keywords
- valve
- pressure self
- miniature low
- safety check
- low pressure
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- Details Of Reciprocating Pumps (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a miniature low-pressure self-lock check valve which comprises a pump bushing, a valve body and a valve seat. The pump bushing is arranged on the inner side of the lower portion of the valve body so as to fix the valve body onto the valve seat, and the upper portion of the valve body is designed to be sharp. Since the upper portion of the valve body is designed to be sharp, liquid can flow through the valve body along one direction rather than the reserve direction, and back flow of the liquid is avoided. In addition, the miniature low-pressure self-lock check valve has the advantages of simple structure, few parts and low cost.
Description
Technical field
The present invention relates to a kind of improvement of safety check, refer in particular to a kind of simple in structure, miniature low pressure self-locking safety check that cost is low.
Background technique
Safety check refers to rely on medium itself to flow and automatic open and close flap, is used for preventing the valve that medium flows backwards, and claims check valve, one-way valve, reflux valve and back pressure valve again.Safety check belongs to a kind of automatic valve, and it mainly acts on is to prevent that medium from flowing backwards, preventing pump and drive motor counter-rotating, and the releasing of vessel media.Safety check also can be used for may rising to the auxiliary system of pressing above system to wherein pressure to be provided on the pipeline of supply.Safety check mainly can be divided into Swing check valve (according to the center of gravity rotation) and Lift check valve (moving along axis).The complex structure of safety check of the prior art, component are many, processing, installation complexity, cost height.
Summary of the invention
The present invention seeks to provide in order to overcome the deficiencies in the prior art a kind of simple in structure, miniature low pressure self-locking safety check that cost is low.
For achieving the above object, the technical solution used in the present invention is: a kind of miniature low pressure self-locking safety check comprises pump cap, valve, valve seat; The lower inside of described valve is provided with pump block; Described pump cap is fixed on valve, pump block on the valve seat; Top shape is arranged on the top of described valve.
Preferably, described pump block screw thread is fixed on the lower inside of valve.
Preferably, the top of described valve is arranged to coniform.
Preferably, tip-angled shape is arranged on the top of described valve.
Because the utilization of technique scheme, the present invention compared with prior art has following advantage:
The described miniature low pressure self-locking safety check of the present invention program is because top shape is arranged on the top of described valve; Liquid can only be from the direction valve of flowing through; Then can't flow through valve in the other direction, thereby can realize preventing that liquid from refluxing; The present invention is simple in structure, component are few, and cost is low.
Description of drawings
Below in conjunction with accompanying drawing technical solution of the present invention is described further:
Accompanying drawing 1 goes out the sectional view of stream mode for the liquid of miniature low pressure self-locking safety check of the present invention;
Accompanying drawing 2 is the plan view of accompanying drawing 1;
Accompanying drawing 3 is the sectional view of the liquid state of rest of miniature low pressure self-locking safety check of the present invention;
Accompanying drawing 4 is the plan view of accompanying drawing 3;
Accompanying drawing 5 is the sectional view of the liquid reflux state of miniature low pressure self-locking safety check of the present invention;
Accompanying drawing 6 is the plan view of accompanying drawing 5;
Wherein: 1, pump cap; 2, valve; 3, pump block; 4, valve seat.
Embodiment
The present invention is described in further detail below in conjunction with drawings and the specific embodiments.
Accompanying drawing 1-6 a kind of miniature low pressure self-locking safety check of the present invention comprises pump cap 1, valve 2, valve seat 4; The lower inside of described valve 2 is provided with pump block 3; Described pump block 3 screw threads are fixed on the lower inside of valve 2; Described pump cap 1 is fixed on valve 2, pump block 3 on the valve seat 4; Top shape is arranged on the top of described valve 2; The top of valve described in the present embodiment 2 is arranged to coniform.Certainly, tip-angled shape also can be arranged in the top of described valve.
The liquid that accompanying drawing 1-2 is depicted as described miniature low pressure self-locking safety check goes out stream mode, and liquid enters from water intake, back down valve 2 after, flow out from water outlet.
Accompanying drawing 3-4 is depicted as the liquid state of rest of described miniature low pressure self-locking safety check, and at this moment, valve 2 is closed automatically.
Accompanying drawing 5-6 is depicted as the liquid reflux state of described miniature low pressure self-locking safety check, and liquid enters from water outlet, gives the top pressurization of valve 2, because the top of valve 2 is top shape, it is more tight that the pressure of liquid more closes valve 2, thereby realize stoping the backflow of liquid.
Because the utilization of technique scheme, the present invention compared with prior art has following advantage:
The described miniature low pressure self-locking safety check of the present invention program is because top shape is arranged on the top of described valve; Liquid can only be from the direction valve of flowing through; Then can't flow through valve in the other direction, thereby can realize preventing that liquid from refluxing; The present invention is simple in structure, component are few, and cost is low.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage that is familiar with this technology can understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; all equivalences that spirit essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (4)
1. a miniature low pressure self-locking safety check comprises pump cap, valve, valve seat; It is characterized in that: the lower inside of described valve is provided with pump block; Described pump cap is fixed on valve, pump block on the valve seat; Top shape is arranged on the top of described valve.
2. miniature low pressure self-locking safety check according to claim 1, it is characterized in that: described pump block screw thread is fixed on the lower inside of valve.
3. miniature low pressure self-locking safety check according to claim 1 and 2, it is characterized in that: the top of described valve is arranged to coniform.
4. miniature low pressure self-locking safety check according to claim 1 and 2, it is characterized in that: tip-angled shape is arranged on the top of described valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102526534A CN103322245A (en) | 2013-03-28 | 2013-06-25 | Miniature low-pressure self-lock check valve |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310102129 CN103174851A (en) | 2013-03-28 | 2013-03-28 | Minitype low-pressure self-locking check valve |
| CN201310102129.9 | 2013-03-28 | ||
| CN2013102526534A CN103322245A (en) | 2013-03-28 | 2013-06-25 | Miniature low-pressure self-lock check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103322245A true CN103322245A (en) | 2013-09-25 |
Family
ID=48634910
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310102129 Pending CN103174851A (en) | 2013-03-28 | 2013-03-28 | Minitype low-pressure self-locking check valve |
| CN2013102526534A Pending CN103322245A (en) | 2013-03-28 | 2013-06-25 | Miniature low-pressure self-lock check valve |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310102129 Pending CN103174851A (en) | 2013-03-28 | 2013-03-28 | Minitype low-pressure self-locking check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103174851A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322256B (en) * | 2013-06-28 | 2016-06-29 | 珠海爱迪生智能家居股份有限公司 | A kind of stabilization flow restriction shutoff valve |
| CN107504229A (en) * | 2017-09-29 | 2017-12-22 | 南通市力沛流体阀业有限公司 | A kind of thermal power plant's check-valves |
| CN110541989A (en) * | 2018-05-29 | 2019-12-06 | 吴朋洋 | quick movable joint for water pipe |
| CN117019414B (en) * | 2023-09-28 | 2024-01-26 | 中建材通辽矽砂工业有限公司 | Quartz sand fluoride-free flotation production equipment and production process with same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2328382A (en) * | 1941-10-08 | 1943-08-31 | Jesse D Langdon | Flexible check valve and vacuum breaker |
| US2642259A (en) * | 1947-10-25 | 1953-06-16 | Manitowoc Shipbuilding Company | Valve |
| US3422844A (en) * | 1965-03-05 | 1969-01-21 | Grimar Inc | Flexible check valve |
| CN87204447U (en) * | 1987-07-20 | 1988-04-06 | 姚宏波 | Self-control throttle check valve |
| CN203421229U (en) * | 2013-03-28 | 2014-02-05 | 苏州优德通力电气有限公司 | Minitype low-pressure self-locking check valve |
-
2013
- 2013-03-28 CN CN 201310102129 patent/CN103174851A/en active Pending
- 2013-06-25 CN CN2013102526534A patent/CN103322245A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2328382A (en) * | 1941-10-08 | 1943-08-31 | Jesse D Langdon | Flexible check valve and vacuum breaker |
| US2642259A (en) * | 1947-10-25 | 1953-06-16 | Manitowoc Shipbuilding Company | Valve |
| US3422844A (en) * | 1965-03-05 | 1969-01-21 | Grimar Inc | Flexible check valve |
| CN87204447U (en) * | 1987-07-20 | 1988-04-06 | 姚宏波 | Self-control throttle check valve |
| CN203421229U (en) * | 2013-03-28 | 2014-02-05 | 苏州优德通力电气有限公司 | Minitype low-pressure self-locking check valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103174851A (en) | 2013-06-26 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130925 |