CN203703305U - Valve deck structure of low-flow-resistance check valve - Google Patents
Valve deck structure of low-flow-resistance check valve Download PDFInfo
- Publication number
- CN203703305U CN203703305U CN201420044616.4U CN201420044616U CN203703305U CN 203703305 U CN203703305 U CN 203703305U CN 201420044616 U CN201420044616 U CN 201420044616U CN 203703305 U CN203703305 U CN 203703305U
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- valve
- open loops
- valve gap
- valve body
- flow
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- Expired - Fee Related
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Abstract
The utility model discloses a valve deck structure of a low-flow-resistance check valve. The valve deck structure of the low-flow-resistance check valve is characterized in that the lower surface of a valve deck is an concave arc surface, and after extending to an outlet of a valve body, the concave arc surface can be roughly connected with the streamline surface of an inner cavity of the valve body, so that a valve flow channel formed by the inner surface of the valve body, the lower surface of the valve deck and other parts has the streamline characteristic. According to the technical scheme of the pressure self-fastening sealing valve deck in a particular application case, radial limiting of a four (three) open ring is achieved through a check ring or a top plate which is installed on and supported by the four (three) open ring, wherein the lower end of the check ring or the top plate is provided with a boss matched with an inner hole of the four (three) open ring. The valve deck structure of the low-flow-resistance check valve has the advantages that because the inner cavity of the valve is a streamline cavity with low flow resistance, mediums can flow more orderly, the resistance coefficient is small, and thus the product can meet the requirements for energy conservation and consumption reduction better.
Description
Technical field
The utility model relates to a kind of valve mechanism, is specifically related to a kind of valve cover structure of low flow resistance check valve.
Background technique
Carrying in the pump and pipe-line system of all kinds of media, in order to prevent that medium from flowing backwards, and generally all can install safety check.For the design manufacturer of safety check product, general all can focus on valve and can in the time that medium flows backwards, reliably close with valve and can meet required seal request what pay close attention to, the drag characteristic to valve when the operation is comparatively ignored.Differently when the operation from the valve of other type be, when safety check puts into operation, valve all can be in opening state, the size of the pressure loss that therefore resistance coefficient of valve that is valve bring to system media, just seem even more important, if the supporting safety check of pump and pipe-line system has low flow resistance characteristic, can reduce undoubtedly the crushing of system, thereby reach the object that reduces energy consumption, reduces production costs.
Be the basic pattern of existing safety check product valve body valve gap design as shown in Figure 1, comprise that the valve body valve gap design of Swing check valve, oblique flap valve generally all adopts such structural type.Existing product mouthful valve gap mounting point downside in valve body has a columniform larger cavity, and MEDIA FLOW can produce stronger eddy current through herein time, can consume a part of system and offer the kinetic energy of medium, thereby increase the energy consumption of unit and equipment.On the other hand, stronger eddy current in valve body cavity, also can lure that movable part in valve, as flap etc. produces flutter, has not only increased the noise of valve operation into, also increased simultaneously part wearing and tearing, reduced the usability of product.
Summary of the invention
In order to overcome structurally existing above-mentioned deficiency of existing product, the utility model provides a kind of valve cover structure of the safety check with low flow resistance characteristic.
To achieve these goals, the utility model is by the following technical solutions:
A kind of valve cover structure of low flow resistance check valve, it comprises valve gap, valve body, it is characterized in that: the lower surface of valve gap is concaved circular cambered surface, described concaved circular cambered surface roughly can join with the inner chamber fairing ace of valve body after valve outlet direction is extended, thereby makes the valve flowing channel being made up of valve interior surface and valve gap lower surface and other correlated parts have streamlined feature.
As one of this class valve comparatively typical case and the safety check of application-wiper seal valve gap widely, adopt following further technological scheme: for self-fastening pressure sealed valve cap, it forms except comprising valve gap, outside valve body, also comprise four (three) open loops, back-up ring and top board, it is characterized in that: four (three) open loops radially spacing is not upwards to promote valve gap during by assembling, it is spacing that nationality helps valve gap top outer round surface to realize radially only leaning on of four (three) open loops, but lean on mounting support in four (three) open loops, lower end is provided with the back-up ring of the boss matching with the endoporus of four (three) open loops, realize radially spacing to four (three) open loops, the top board of mounting support on valve body, except the axial limiting part as back-up ring, the support member of pretension simultaneously while also assembling as valve gap.
As one of this class valve comparatively typical case and the safety check of application-wiper seal valve gap widely, the utility model also can adopt another further technological scheme: for self-fastening pressure sealed valve cap, it forms except comprising valve gap, outside valve body, also comprise four (three) open loop and top boards, it is characterized in that: four (three) open loops radially spacing is not upwards to promote valve gap during by assembling, it is spacing that nationality helps valve gap top outer round surface to realize radially only leaning on of four (three) open loops, but lean on mounting support in four (three) open loops, lower end is provided with the top board of the boss matching with the endoporus of four (three) open loops, realize radially spacing to four (three) open loops, the top board of mounting support in four (three) open loops, except the radially spacing part as four (three) open loops, the support member of pretension simultaneously while also assembling as valve gap.
The beneficial effects of the utility model are: the technological scheme providing, and the streamlined chamber that its valve cavity is low flow resistance, media flow is more orderly, and resistance coefficient is little, thereby makes product more can meet energy-saving and cost-reducing requirement.Fig. 3 is shown in by the flow field schematic diagram of the streamlined inner chamber of valve.
Accompanying drawing explanation
Fig. 1 is a typical structural representation of existing safety check product, can reflect the Morphological Features of medium runner in existing product valve.
Fig. 2 is the structural representation at the valve gap position of a kind of safety check with low flow resistance characteristic provided by the utility model.
Fig. 3 is the flow field schematic diagram that adopts the valve fluid passage that forms of the technical solution of the utility model.
Embodiment
Below in conjunction with drawings and Examples, the technical solution of the utility model is further elaborated.
If Fig. 2 is an embodiment of the safety check valve cover structure with low flow resistance characteristic provided by the utility model, its structure comprises valve gap (1), valve body (2), the technical program is characterised in that: the lower surface of valve gap (1) is concaved circular cambered surface, described concaved circular cambered surface after extending toward valve body (2) Way out roughly can and the inner chamber fairing ace of valve body (2) join, thereby make the valve flowing channel being formed by valve body (2) internal surface and valve gap (1) lower surface and other correlated parts there is streamlined feature.
What the embodiment of Fig. 2 exemplified is as one of this class valve comparatively typical case and the safety check of application-wiper seal valve gap widely, in the additional following further technological scheme of the structure aspects of self-fastening pressure sealed valve cap: it forms to remove and comprises valve gap (1), outside valve body (2), also comprise four (three) open loops (3), back-up ring (4) and top board (5), it is characterized in that: four (three) open loops (3) radially spacing be not upwards promote during by assembling valve gap (1) nationality help valve gap (1) top outer round surface realize to four (three) open loops (3) radially only by spacing, but lean on mounting support in four (three) open loops (3), lower end is provided with the back-up ring (4) of the boss matching with the endoporus of four (three) open loops (3), realize radially spacing to four (three) open loops (3), the top board (5) of mounting support on valve body (2), except the axial limiting part as back-up ring (4), the support member of pretension simultaneously while also assembling as valve gap (1).
The safety check valve cover structure with low flow resistance characteristic proposing for the utility model is applied to the safety check of wiper seal valve gap, except the lower surface of valve gap (1) is concaved circular cambered surface, can jointly form outside streamline channel with valve body (2) internal surface, also can add another technological scheme (referring to Fig. 1) in the structure aspects of self-fastening pressure sealed valve cap: it forms except comprising valve gap (1), outside valve body (2), also comprise four (three) open loops (3) and top board (5), it is characterized in that: four (three) open loops (3) radially spacing be not upwards promote during by assembling valve gap (1) nationality help valve gap (1) top outer round surface realize to four (three) open loops (3) radially only by spacing, but lean on mounting support in four (three) open loops (3), lower end is provided with the top board (5) of the boss matching with the endoporus of four (three) open loops (3), realize radially spacing to four (three) open loops (3), the top board (5) of mounting support in four (three) open loops (3), except the radially spacing part as four (three) open loops (3), the support member of pretension simultaneously while also assembling as valve gap (1).
The structure of above-mentioned two kinds of self-fastening pressure sealed valve caps, why do not adopt and realize radially only leaning on of four (three) open loops (3) spacing by upwards promoting valve gap (1), but by increasing back-up ring (4) or adopting top board (5) to be used as the radially spacing part to four (three) open loops (3), because adopt when upwards promoting valve gap (1) and only carrying out radially by spacing structure to four (three) open loops (3), the hypomere of the cylindrical hole coordinating with valve gap (1) cylindrical that need to be on valve body (2), increase can meet the sufficient length of lifting height, thereby can cause the concaved circular cambered surface of valve gap (1) lower end between valve export direction and the arc shaped surface of valve body (2) inner chamber, to occur larger interruption, be unfavorable for forming streamline channel, and adopt back-up ring (4) or top board (5) to be used as the radially spacing part to four (three) open loops (3), in the structure of valve lumen without considering above-mentioned lifting height, thereby can not produce above-mentioned problem yet.
Below by reference to the accompanying drawings embodiment of the present utility model is described, but these explanations can not be understood to limit scope of the present utility model.Those skilled in the art should know; the utility model is not restricted to the described embodiments; its protection domain is defined by appending claims; any not exceeding the various changes in the scope that the utility model claims define, the technological scheme that modification forms; all do not depart from spirit of the present utility model and technical spirit, within still can belonging to claim scope of the present utility model.
Claims (3)
1. the valve cover structure of a low flow resistance check valve, it comprises valve gap (1), valve body (2), it is characterized in that: the lower surface of valve gap (1) is concaved circular cambered surface, described concaved circular cambered surface after extending toward valve body (2) Way out roughly can and the inner chamber fairing ace of valve body (2) join, thereby make the valve flowing channel being formed by valve body (2) internal surface and valve gap (1) lower surface and other correlated parts there is streamlined feature.
2. the valve cover structure of low flow resistance check valve according to claim 1, valve gap type is self-fastening pressure sealed valve cap, it forms except comprising valve gap (1), outside valve body (2), also comprise four (three) open loops (3), back-up ring (4) and top board (5), it is characterized in that: four (three) open loops (3) radially spacing be not upwards promote during by assembling valve gap (1) nationality help valve gap (1) top outer round surface realize to four (three) open loops (3) radially only by spacing, but lean on mounting support in four (three) open loops (3), lower end is provided with the back-up ring (4) of the boss matching with the endoporus of four (three) open loops (3), realize radially spacing to four (three) open loops (3), the top board (5) of mounting support on valve body (2), except the axial limiting part as back-up ring (4), the support member of pretension simultaneously while also assembling as valve gap (1).
3. the valve cover structure of low flow resistance check valve according to claim 1, valve gap type is self-fastening pressure sealed valve cap, it forms except comprising valve gap (1), outside valve body (2), also comprise four (three) open loops (3) and top board (5), it is characterized in that: four (three) open loops (3) radially spacing be not upwards promote during by assembling valve gap (1) nationality help valve gap (1) top outer round surface realize to four (three) open loops (3) radially only by spacing, but lean on mounting support in four (three) open loops (3), lower end is provided with the top board (5) of the boss matching with the endoporus of four (three) open loops (3), realize radially spacing to four (three) open loops (3), the top board (5) of mounting support in four (three) open loops (3), except the radially spacing part as four (three) open loops (3), the support member of pretension simultaneously while also assembling as valve gap (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044616.4U CN203703305U (en) | 2014-01-23 | 2014-01-23 | Valve deck structure of low-flow-resistance check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044616.4U CN203703305U (en) | 2014-01-23 | 2014-01-23 | Valve deck structure of low-flow-resistance check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703305U true CN203703305U (en) | 2014-07-09 |
Family
ID=51053750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420044616.4U Expired - Fee Related CN203703305U (en) | 2014-01-23 | 2014-01-23 | Valve deck structure of low-flow-resistance check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081185A (en) * | 2019-04-04 | 2019-08-02 | 西安建筑科技大学 | A kind of air-valve in ventilation and air conditioning system |
-
2014
- 2014-01-23 CN CN201420044616.4U patent/CN203703305U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081185A (en) * | 2019-04-04 | 2019-08-02 | 西安建筑科技大学 | A kind of air-valve in ventilation and air conditioning system |
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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: 20140709 Termination date: 20180123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |