CN202733082U - Diaphragm-type elastic overflow self-closing structure - Google Patents
Diaphragm-type elastic overflow self-closing structure Download PDFInfo
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- CN202733082U CN202733082U CN 201220369271 CN201220369271U CN202733082U CN 202733082 U CN202733082 U CN 202733082U CN 201220369271 CN201220369271 CN 201220369271 CN 201220369271 U CN201220369271 U CN 201220369271U CN 202733082 U CN202733082 U CN 202733082U
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- flexible sheet
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Abstract
The utility model relates to a diaphragm-type elastic overflow self-closing structure, which comprises an elastic diaphragm, wherein the elastic diaphragm is arranged in a pipeline or a valve inlet and can be used for blocking fluid; the center position of the elastic diaphragm is provided with a fluid through hole; the elastic diaphragm is fixedly provided with an end cap on the outlet side of the fluid through hole; and a gap used for the fluid to pass through is reserved between the end cap and the fluid through hole. The diaphragm-type elastic overflow self-closing structure disclosed by the utility model has the advantages of simple structure, easiness in installation and stable and reliable mechanism work performance and does not need to be regulated; the fluid through hole of the elastic diaphragm of the diaphragm-type elastic overflow self-closing structure can be swung between left and right to be in contact fit matching with the end cap; a self-closing valve has a high response rate, the problem that the traditional self-closing valve is not closed because the pipeline pressure is higher than use pressure but does not exceed the high pressure due to the boundedness of single structure is effectively solved, and the problem of inconvenience due to big possibility of regulation due to low self-closing valve response rate is solved.
Description
Technical field
The utility model belongs to the pipeline valve equipment technical field, relates to the self-closing structures of fluid line overcurrent, the particularly self-closing structure of a kind of diaphragm type elasticity overcurrent such as gas, liquid.
Background technique
Raising along with economic development and living standards of the people, city and industrial fuel gas are increasingly extensive, combustion gas becomes indispensable dependence in people's life, but people understand not comprehensive to the safe handling combustion gas, even the use of combustion gas is not had the consciousness of safety precaution, thereby unnecessary loss and accident have been caused.Natural gas companies is generally heightened supply gas pressure for guaranteeing air feed at present, and the characteristics of gas self-closing valve are autoshutdowns when pressure surpasses setting pressure.The gas voltage adjusting device is different because of environment, pipeline gas high voltage supply phenomenon easily occurs, in the repairing process, then must at first cut off source of the gas, if the user does not have timely or forgets valve before the valve of closing burner, the kitchen range, when air feed again, will cause because of artificial fuel gas divulges, and personnel and social safety around the entail dangers to.The gas self-closing valve that uses at present is varied, has directly to cross drift angle and close, and also has induction pressure to close etc.Be the safety problem that can solve a part of gas pipeline technically, but not comprehensive and more single, work in the range of pressure values of setting in the time of can only dispatching from the factory in producer, exceed or be difficult to reach the purpose that realizes autoshutdown when being lower than setting value; Like this in real life, when in a single day the higher flexible pipe end of pipeline gas self closing stop valve outlet end comes off or breaks, and be higher than the working pressure scope and not during ultrahigh pressure when pipeline pressure, present gas self-closing valve is in not closed condition, the personnel that very easily cause injure and property loss, and the sense of insecurity of society.
The model utility content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provides a kind of diaphragm type elasticity overcurrent self-closing structure, and this device realizes that by flexible sheet overcurrent is self-closing, it is simple in structure, be easy to install, and do not need to regulate mechanism's stable and reliable working performance.
The purpose of this utility model solves by the following technical programs:
The self-closing structure of this diaphragm type elasticity overcurrent, comprise and be arranged in the pipeline or the valve body import can be blocked the flexible sheet of fluid, described flexible sheet central position offers fluid and passes through the hole, be fixedly installed plug at described flexible sheet in the side of fluid by hole exits, described plug and fluid are by being reserved with the gap of passing through for fluid between the hole.
Further, the outer circumferential side of above-mentioned flexible sheet cooperates with inner-walls of duct or valve body import inner wall sealing, and the fluid of described flexible sheet central position is by the circular pipeline section of Kong Weiyi section.
Above-mentioned plug is cone type, and its cone point is towards the center of fluid by the hole; Circular pipeline section outlet end and the cone flank face of plug can the closely cooperate sealing of described fluid by the hole.
Further, above-mentioned plug is fixed in the pipeline by support or the valve body entrance location.
The utlity model has following beneficial effect:
The self-closing structure of diaphragm type elasticity overcurrent of the present utility model, it is simple in structure, be easy to install, need not to regulate, mechanism's stable and reliable working performance, the fluid of its flexible sheet can swing by the hole, contact close fit with plug, this self closing stop valve is highly sensitive, has effectively solved existing self closing stop valve and has been higher than not closing problem not during ultrahigh pressure of working pressure because the narrow limitation of single structure causes pipeline pressure, has overcome the low difficult problems such as unfavorable that produce of regulating of self closing stop valve sensitivity.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present utility model (being installed in pipeline or the valve body);
Fig. 2 is that whole valve was in ventilation normal working schematic diagram after the utility model was installed in the valve body;
Fig. 3 is the schematic diagram that valve body is in closed state among Fig. 2.
Wherein, 1 is flexible sheet; 2 is plug; 3 pass through the hole for fluid.
Referring to Fig. 1, the basic scheme of the self-closing structure of diaphragm type elasticity overcurrent of the present utility model is: comprise being arranged in the pipeline or the valve body import can be blocked the flexible sheet 1 of fluid, the central position of flexible sheet 1 offers fluid by hole 3, be fixedly installed plug 2 in fluid by the side that hole 3 exports at described flexible sheet 1, plug 2 and fluid are by being reserved with the gap that fluid is passed through between the hole 3.The outer circumferential side of flexible sheet 1 cooperates with inner-walls of duct or valve body import inner wall sealing.
Realize that such scheme has various ways, following the utility model describes in detail a kind of by reference to the accompanying drawings for example:
In the present embodiment, the fluid of flexible sheet 1 central position is one section circular pipeline section by hole 3, and described circular pipeline section circumferentially is arranged on the central position of flexible sheet 1 and is integral type with flexible sheet 1.Plug 2 is cone type, and its cone point is towards the center of fluid by hole 3; Circular pipeline section outlet end and the cone flank face of plug 2 can the closely cooperate sealing of fluid by hole 3.Plug 2 is to be fixed in the pipeline or the valve body entrance location by support.
The means of fixation of plug 2 of the present utility model can arrange arbitrarily according to actual needs, and in Fig. 2 or Fig. 3, when the utility model was arranged on valve body inlet, the parts in plug 2 and the valve body were fixedly connected with.
The self-closing structure of diaphragm type elasticity overcurrent of the present utility model is in normal working, because the pressure of flexible sheet 1 both sides about equally, because flexible sheet 1 keeps the state of self, as shown in Figure 2, whole valve body is in open mode, when in the pipeline or in the valve body because fault when causing flexible sheet 1 both sides pressure reduction not wait, because differential pressure action causes flexible sheet 1 distortion, cause the fluid of flexible sheet 1 close to plug 2 by hole 3, if pressure reduction is enough large, plug 2 is directly closely cooperated by hole 3 with fluid, the formation sealing configuration, as shown in Figure 3.So just can reach the self-closing purpose of overcurrent.
What need statement is; the self-closing structure of the utility model diaphragm type elasticity required for protection overcurrent can not only be installed on as in the described valve body of Fig. 2-3; it also can be installed in any pipeline for delivery of fluid forms such as gas or liquid, can realize its function equally.
Claims (5)
1. self-closing structure of diaphragm type elasticity overcurrent, it is characterized in that, comprise and be arranged in the pipeline or the valve body import can be blocked the flexible sheet (1) of fluid, the central position of described flexible sheet (1) offers fluid by hole (3), be fixedly installed plug (2) in fluid by the side that hole (3) export at described flexible sheet (1), described plug (2) and fluid are by being reserved with the gap that fluid is passed through between hole (3).
2. the self-closing structure of diaphragm type elasticity overcurrent according to claim 1, it is characterized in that, the outer circumferential side of flexible sheet (1) cooperates with inner-walls of duct or valve body import inner wall sealing, and the fluid of described flexible sheet (1) central position is one section circular pipeline section by hole (3).
3. the self-closing structure of diaphragm type elasticity overcurrent according to claim 2 is characterized in that, described plug (2) is cone type, and its cone point is towards the center of fluid by hole (3); Circular pipeline section outlet end and the cone flank face of plug (2) can the closely cooperate sealing of described fluid by hole (3).
4. the self-closing structure of diaphragm type elasticity overcurrent according to claim 2 is characterized in that, described circular pipeline section circumferentially is arranged on the central position of flexible sheet (1) and is integral type with flexible sheet (1).
5. the self-closing structure of the described diaphragm type elasticity of any one overcurrent is characterized in that according to claim 1-4, and described plug (2) is fixed in the pipeline by support or the valve body entrance location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369271 CN202733082U (en) | 2012-07-27 | 2012-07-27 | Diaphragm-type elastic overflow self-closing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369271 CN202733082U (en) | 2012-07-27 | 2012-07-27 | Diaphragm-type elastic overflow self-closing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202733082U true CN202733082U (en) | 2013-02-13 |
Family
ID=47658783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220369271 Expired - Lifetime CN202733082U (en) | 2012-07-27 | 2012-07-27 | Diaphragm-type elastic overflow self-closing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202733082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741110A (en) * | 2017-11-21 | 2018-02-27 | 珠海格力电器股份有限公司 | Expansion valve and refrigeration unit |
-
2012
- 2012-07-27 CN CN 201220369271 patent/CN202733082U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741110A (en) * | 2017-11-21 | 2018-02-27 | 珠海格力电器股份有限公司 | Expansion valve and refrigeration unit |
| CN107741110B (en) * | 2017-11-21 | 2023-11-14 | 珠海格力电器股份有限公司 | Expansion valve and refrigerating unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: SHAANXI DATANG INTELLIGENT INSTRUMENTS & METERS CO.,LTD. Document name: Notification that Application Deemed not to be Proposed |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |
|
| CX01 | Expiry of patent term |