CN204647441U - A kind of Novel swing check valve - Google Patents
A kind of Novel swing check valve Download PDFInfo
- Publication number
- CN204647441U CN204647441U CN201520225246.9U CN201520225246U CN204647441U CN 204647441 U CN204647441 U CN 204647441U CN 201520225246 U CN201520225246 U CN 201520225246U CN 204647441 U CN204647441 U CN 204647441U
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- valve
- valve body
- bearing pin
- flap
- swing check
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Abstract
The utility model relates to a kind of Novel swing check valve, comprise valve body, valve seat, flap and bearing pin, the two ends of valve body are respectively arranged with fluid inlet and fluid output, import and outlet end are coaxially integrally shaped with adpting flange, near fluid inlet side, cooperation is provided with valve seat to valve inner, and valve seat is positioned at the endoceliac side of valve body and is provided with flap, and flap is connected with rocking bar by nut, make a capping at the top radial integrated of valve body, capping inner edge is the cavity made with valve body.The valve body of the Novel swing check valve that the utility model provides is integrated the valve body made, an arc upper cover is integrally made on valve body top, replace existing valve gap and sealing gasket, to save in existing Swing check valve must valve gap, sealing gasket two parts, greatly reduce production and the manufacture cost of valve.
Description
Technical field
The utility model belongs to valve field, especially a kind of Novel swing check valve.
Background technique
Swing check valve is also known as one-way valve or check valve, and its effect prevents the medium in pipeline from flowing backwards.Open-shut device is opened voluntarily by media flow and strength or closes, and the valve flow backwards to prevent medium is on safety check.Safety check belongs to self-acting valve class, is mainly used on the pipeline of medium one-way flow, only allows medium to flow to a direction, to try to avert accidents.This class valve generally should level be installed in the duct.
Swing check valve adopts in-built rocking arm rotary-open type structure, and all open-shut device of valve are all loaded on valve inner, do not penetrate valve body, and except middle flange position gasket seal and seal ring, entirety does not have outer leak source, stops the possibility that valve leaks.The structure that Swing check valve rocking arm and flap joint adopt sphere to be connected, makes flap have certain degrees of freedom within the scope of 360 degree, has suitable micro-position compensation.
According to the retrieval, the patent of safety check is more, according to comparing and reading patent content, find that the emphasis of the patent of existing safety check improves the improvement all carried out on the connection of flap, rotation and sealing means at position, also little to the improvement of valve body itself, retrieve patent documentation CN202215799U simultaneously and disclose a kind of Swing check valve, the valve seat of this valve is positioned at valve body, be positioned at the endoceliac side of valve body at valve seat and be provided with flap, flap is connected with rocking bar, rocking bar by pinned connection on valve body.Adopt the utility model, because of the as a whole spherical valve body of body cavity, also just without outer leak source, both decreased volume, weight and consumptive material, meanwhile, because medium substantially belongs to laminar condition in valve flowing channel, during keying, noise reduces greatly.
Aforementioned patents disclose one and valve body is made integral spherical valve body, then in valve body, valve seat is inlayed in addition, although this application sealing is better, noise reduces greatly, but its valve seat needing regenerative ratio extra when producing, need to carry out sealing and fixing with valve body itself by coaxial for valve seat, add extra operation, increase simultaneously and install and detection difficulty.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art part, provides that a kind of cost is low, manufacturing procedure is few, the Novel swing check valve of better tightness.
The technological scheme that the utility model technical solution problem adopts is:
A kind of Novel swing check valve, comprise valve body, valve seat, flap and bearing pin, the two ends of valve body are respectively arranged with fluid inlet and fluid output, import and outlet end are coaxially integrally shaped with adpting flange, valve inner has valve seat near fluid inlet side, and valve seat is positioned at the endoceliac side of valve body and is provided with flap, and flap is connected with rocking bar by nut, make a capping at the top radial integrated of valve body, capping inner edge is the cavity made with valve body.
And described capping upper-end surface is shaped with tongue on.
And described bearing pin is fixed on the outside of valve body body wall, the side valve body outer rim of capping is shaped with pin shaft hole near valve seat side, and be coaxially fixedly mounted with bearing pin in pin shaft hole, bearing pin outer rim coaxially cuts with scissors dress rocking bar.
And bearing pin is fixed on the inner side of valve body body wall, the side valve body inner edge of bell capping is shaped with pin shaft hole near valve seat side, and be coaxially fixedly mounted with bearing pin in pin shaft hole, bearing pin outer rim coaxially cuts with scissors dress rocking bar.
Advantage of the present utility model and good effect are:
1, the valve body of Novel swing check valve that the utility model provides is integrated the valve body made, an arc upper cover is integrally made on valve body top, replace existing valve gap and sealing gasket, to save in existing Swing check valve must the parts such as valve gap, sealing gasket and connecting bolt nut, greatly reduce production and the manufacture cost of valve.
2, the valve body of Novel swing check valve that the utility model provides is integrated the valve body made, and first, does not need additionally to produce valve gap, sealing gasket again, saves production process; Secondly, do not need, again for valve body installs this two workpiece, to save installation procedure; Again, do not need the sealing after installing valve gap and sealing gasket again to detect, save and detect sealing operation.
3, the valve body of Novel swing check valve that the utility model provides is integrated the valve body made, and when mounted, only needs flap to be contained in valve body by bearing pin hinge, greatly saves assembling man-hour, raising unit production capacity and output.
4, the valve body of Novel swing check valve that the utility model provides is integrated the valve body made, and the arc upper cover on valve body top has two functions, and valve body can seal by one, and its two non-return effect that can ensure flap, achieves many things at one stroke.
Accompanying drawing explanation
Fig. 1 is the schematic diagram (bearing pin is fixed on the outside of valve body body wall) of the utility model structure;
Fig. 2 is the axial sectional view of Fig. 1;
Fig. 3 is the axial sectional view (bearing pin is fixed on the inner side of valve body body wall) of another structure of the utility model.
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of Novel swing check valve, comprise valve body 9, valve seat 5, flap 6 and bearing pin 2, the two ends of valve body are respectively arranged with fluid inlet 4 and fluid output 10, import and outlet end are coaxially integrally shaped with adpting flange 1, near fluid inlet side, cooperation is provided with valve seat to valve inner, valve seat is positioned at the endoceliac side of valve body and is provided with flap, flap is connected with rocking bar 7 by nut 8, rocking bar hinge is contained in bearing pin outer rim, bearing pin is arranged on valve body body wall, above-mentioned is the basic mounting structure of Swing check valve, and innovation of the present utility model is:
1, a bell capping 3 is made at the top radial integrated of valve body, bell capping inner edge is the cavity made with valve body, this cavity can containing fluid when passing through, the flap of spin-up, rocking bar and nut, carry out spacing to flap, because cavity is comparatively large, when fluid stops flowing simultaneously, flap can fall seal valve seat rapidly, stops liquid backflow.Thus save valve gap and sealing gasket.
2, bearing pin is fixed on the outside (Fig. 1 and Fig. 2) of valve body body wall, and in the side valve body outer rim of bell capping, (near valve seat side) is shaped with pin shaft hole, and be coaxially fixedly mounted with bearing pin in pin shaft hole, bearing pin outer rim coaxially cuts with scissors dress rocking bar.
3, bearing pin is fixed on the inner side (Fig. 3) of valve body body wall, and on the side valve body inner edge of bell capping, (near valve seat side) is shaped with pin shaft hole, and be coaxially fixedly mounted with bearing pin in pin shaft hole, bearing pin outer rim coaxially cuts with scissors dress rocking bar.
4, be shaped with tongue 3-1 in described capping upper-end surface, can effectively prevent blocking of flap.
Non-return principle of the present utility model is as follows:
When medium flows from left to right, flap is pushed open and rotates up around bearing pin by the pressure of medium, opens flap, till the upper wall of valve body body cavity is encountered in the end of screw thread on the right side of flap.Now valve is standard-sized sheet, and medium is unimpeded in valve and pipeline.When medium temporarily stop flowing time or medium flow from right to left time, flap then rotates until close to the sealing surface direction of valve seat.Now pipeline medium flowing is cut-off.
Claims (4)
1. a Novel swing check valve, comprise valve body, valve seat, flap and bearing pin, the two ends of valve body are respectively arranged with fluid inlet and fluid output, import and outlet end are coaxially integrally shaped with adpting flange, near fluid inlet side, cooperation is provided with valve seat to valve inner, and valve seat is positioned at the endoceliac side of valve body and is provided with flap, and flap is connected with rocking bar by nut, it is characterized in that: make a capping at the top radial integrated of valve body, capping inner edge is the cavity made with valve body.
2. Novel swing check valve according to claim 1, is characterized in that: described capping upper-end surface is shaped with tongue on.
3. Novel swing check valve according to claim 1, it is characterized in that: described bearing pin is fixed on the outside of valve body body wall, the side valve body outer rim of capping is shaped with pin shaft hole near valve seat side, and be coaxially fixedly mounted with bearing pin in pin shaft hole, bearing pin outer rim coaxially cuts with scissors dress rocking bar.
4. Novel swing check valve according to claim 1, it is characterized in that: bearing pin is fixed on the inner side of valve body body wall, the side valve body inner edge of bell capping is shaped with pin shaft hole near valve seat side, and be coaxially fixedly mounted with bearing pin in pin shaft hole, bearing pin outer rim coaxially cuts with scissors dress rocking bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520225246.9U CN204647441U (en) | 2015-04-15 | 2015-04-15 | A kind of Novel swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520225246.9U CN204647441U (en) | 2015-04-15 | 2015-04-15 | A kind of Novel swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204647441U true CN204647441U (en) | 2015-09-16 |
Family
ID=54100193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520225246.9U Active CN204647441U (en) | 2015-04-15 | 2015-04-15 | A kind of Novel swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204647441U (en) |
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2015
- 2015-04-15 CN CN201520225246.9U patent/CN204647441U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |