CN217502699U - Angle type check valve - Google Patents

Angle type check valve Download PDF

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Publication number
CN217502699U
CN217502699U CN202221465562.XU CN202221465562U CN217502699U CN 217502699 U CN217502699 U CN 217502699U CN 202221465562 U CN202221465562 U CN 202221465562U CN 217502699 U CN217502699 U CN 217502699U
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China
Prior art keywords
valve
valve body
piston
valve cover
hole
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CN202221465562.XU
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Chinese (zh)
Inventor
黄文博
路厚尤
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Kunshan Kinglai Hygienic Materials Co Ltd
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Kunshan Kinglai Hygienic Materials Co Ltd
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Priority to CN202221465562.XU priority Critical patent/CN217502699U/en
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Abstract

The utility model discloses an angle-shaped one-way valve, which comprises a valve body, wherein one end of the valve body is a flow inlet, the other end is a flow outlet, a valve core assembly mounting hole is arranged on the valve body between the flow inlet and the flow outlet, and an annular limiting surface is arranged in the valve body; the valve element assembly comprises a valve cover, a piston and a spring, wherein the valve cover is fixedly installed on the valve body, the lower end face of the valve cover is provided with a piston hole, the piston comprises a rod part and a head part, the end part of the rod part extends into the piston hole, the upper end of the spring is connected with the valve cover, and the head part is connected with the lower end of the spring in an abutting connection mode on the annular limiting surface, so that the opening between the outflow port and the inflow port is in an open circuit state. Piston hole sets up down, compares the setting up among the prior art, and in the valve switch in-process, the medium can not remain in the hole, is applicable to sealed, cleanliness and the vital large-scale gas distribution application occasion of purity.

Description

Angle type check valve
Technical Field
The utility model belongs to the valve technology, concretely relates to angle type check valve.
Background
Disclosed a check valve in patent CN206439455U, including valve body and valve cap, valve body bottom left side is the influent stream mouth, and the right side is for the effluent stream mouth, the influent stream mouth inboard is equipped with the slope heavy-calibre opening, opening and influent stream mouth are 60 angles of inclination, the opening upper end is equipped with the case of the same angle, threaded connection has the valve cap on the valve body, valve cap inner end lateral wall is equipped with first recess, first recess inside wall sliding connection has the case, the packing ring has been cup jointed to the one end that the valve cap was kept away from to the case, the packing ring lower extreme is equipped with the gasket, the gasket cup joints on the case, the gasket lower extreme is equipped with lock nut. The utility model discloses a first spring and second spring coupling valve cap and case make the first recess inner wall of case and valve cap slide, increase the leakproofness of valve body and valve cap junction through the shape circle of mouth as one speaks, and the valve clack is self-closing in order to prevent the fluid refluence under the thrust effects such as fluid pressure difference, gravity and spring of own.
However, the spring groove of the valve has an upward hole, and in the opening and closing process of the valve, media can remain in the hole and are not easy to remove, so that the valve is not suitable for the cleaning industry.
Disclosure of Invention
The utility model discloses to prior art's shortcoming, designed an angle type check valve, the piston hole sets up down, compares setting up in prior art, and at the valve switch in-process, the medium can not remain in the hole, is applicable to sealed, cleanliness and the vital large-scale gas distribution application scenario of purity.
The utility model discloses a technical scheme as follows: an angle-type check valve comprising:
the valve comprises a valve body, wherein one end of the valve body is provided with a flow inlet, the other end of the valve body is provided with a flow outlet, a valve core assembly mounting hole is formed in the valve body between the flow inlet and the flow outlet, and an annular limiting surface is arranged in the valve body;
the valve core assembly comprises a valve cover, a piston and a spring, wherein the valve cover is fixedly installed on the valve body, the lower end face of the valve cover is provided with a piston hole, the piston comprises a rod part and a head part, the end part of the rod part extends into the piston hole, the upper end of the spring is connected with the valve cover, and the head part is connected with the lower end of the spring in an abutting mode on the annular limiting surface so that the outflow port and the inflow port are in an open circuit state.
On the basis of the scheme, preferably, a shaft sleeve is further installed between the wall of the piston hole and the rod part, the shaft sleeve is fixedly installed in the piston hole, and the rod part is in clearance fit with the shaft sleeve.
On the basis of the scheme, the valve cover is preferably T-shaped, the valve cover comprises a valve cover cap and a valve cover rod, the valve cover cap is fixedly and hermetically connected with the valve body, the valve cover rod extends into the valve core assembly mounting hole, and the piston hole is located on the valve cover rod.
In addition to the above, preferably, the bonnet cap and the valve body are hermetically connected by a bonnet gasket.
On the basis of above-mentioned scheme, as the preferred, the up end of bonnet cap's lower terminal surface and valve body all has the seal groove, and the bonnet gasket is installed in the seal groove.
On the basis of the scheme, the side wall of the valve cover rod is preferably provided with at least one exhaust hole, and the exhaust holes are communicated with the piston hole.
Preferably, in addition to the above aspect, the upper end surface of the head portion is integrally formed with the rod portion, and the lower end surface is fixedly attached with the seal gasket.
On the basis of the above-mentioned scheme, preferably, the screw passes through the sealing ring and the sealing gasket to fix the sealing ring and the sealing gasket on the lower end surface of the head.
On the basis of the scheme, preferably, the annular limiting surface is perpendicular to the axis of the valve core assembly mounting hole.
On the basis of the scheme, preferably, the included angle between the annular limiting surface and the horizontal plane is 45 degrees.
Compared with the prior art, the utility model discloses following beneficial effect has:
piston hole sets up down, compares the setting up among the prior art, and in the valve switch in-process, the medium can not remain in the hole, is applicable to sealed, cleanliness and the vital large-scale gas distribution application occasion of purity.
The piston hole is downward, sliding seal does not need to be arranged between the piston rod and the hole wall of the piston hole, sealing maintenance and maintenance are not needed to be carried out on the piston hole, and the service life of a product is prolonged.
The valve body adopts 45 degrees designs, forms the angle type, effectively prevents the pressure oscillation phenomenon.
The seal gasket is soft seal, when the valve is closed, can prevent that the piston from leading to the sealed point gapped inadequately with valve body concentricity, the condition of unable complete shut-off valve appears.
All hole site designs are in the valve chamber, and when the valve was closed, the medium can in time be got rid of, and is difficult for remaining.
Drawings
Fig. 1 is a schematic structural view of the closed state of the present invention;
fig. 2 is a schematic structural view of the open state of the present invention.
Detailed Description
In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
As shown in fig. 1-2, an angle type check valve includes:
the valve comprises a valve body 1, wherein one end of the valve body is provided with a flow inlet 2, the other end of the valve body is provided with a flow outlet 3, a valve core assembly mounting hole (valve cavity) is formed in the valve body between the flow inlet and the flow outlet, and an annular limiting surface 4 is arranged in the valve body; the reference is made to the horizontal direction of the inlet and the outlet, the left side of the inlet is the inlet, and the right side of the outlet is the outlet.
The valve core assembly comprises a valve cover 5, a piston 6 and a spring 7, the valve cover is fixedly installed on the valve body, a piston hole 8 is formed in the lower end face of the valve cover, the piston comprises a rod portion 601 and a head portion 602, the end portion of the rod portion extends into the piston hole, the upper end of the spring is connected with the valve cover, and the head portion is abutted to the annular limiting face through the lower end connecting head portion, so that an open circuit state is formed between the outflow port and the inflow port.
In the above solution, the axial direction of the piston bore is at an angle of 45 degrees to the horizontal.
In the scheme, under the closed state of the valve, the spring is in a compressed state and gives a certain force value to the piston, so that the head of the piston can form sealing with the annular limiting surface (valve body). The piston is limited in the piston hole and moves up and down in a reciprocating mode at an angle of 45 degrees with the horizontal direction, when the valve is closed, the head of the piston and the sealing point form line surface sealing, and leakage points are reduced. Simultaneously, the piston hole sets up downwards, compares the setting up in prior art, and at the valve switch in-process, the medium can not remain in the hole, is applicable to sealed, cleanliness and the vital large-scale gas distribution application occasion of purity. And because the piston hole is downward, need not to set up sliding seal between the pore wall of piston rod and piston hole, need not to seal here and maintain, improved the life of product.
Piston pore wall with pole portion between still install axle sleeve 9, axle sleeve fixed mounting is in the piston hole, pole portion with clearance fit between the axle sleeve, through the axle sleeve setting, the internal diameter of axle sleeve slightly is less than the internal diameter in piston hole, can avoid producing the friction between pole portion and the piston pore wall, cause the damage.
The valve cover is T-shaped and comprises a valve cover cap 501 and a valve cover rod 502, the valve cover cap is fixedly and hermetically connected with the valve body, the valve cover rod extends into the valve core assembly mounting hole, and the piston hole is positioned on the valve cover rod.
The bonnet cap and the valve body are connected in a sealing mode through a bonnet gasket 10, and other sealing elements can be adopted as an alternative.
The lower terminal surface of bonnet lid and the up end of valve body all have the seal groove, and the valve gap gasket is installed in the seal groove, and the design of seal groove, when the installation, the valve gap gasket is adorned in the seal groove of valve body upper end, can prevent that the position from taking place the skew. When the valve cover is installed, the sealing groove of the valve cover cap is aligned to the valve cover gasket, the valve cover gasket is locked in a limiting mode, the valve cover is prevented from being deviated in position, and the valve cover and the valve body are locked from top to bottom through screws.
The side wall of the valve cover rod is also provided with at least one exhaust hole 11, and the exhaust holes are communicated with the piston hole. The design of the exhaust hole ensures that impurities in the fluid are brought out in the continuous flow of the fluid after entering the piston hole through the gap between the shaft sleeve and the rod part when in use, and cannot be retained in the piston hole.
The upper end surface of the head part and the rod part are integrally formed, and a sealing gasket 12 is fixedly arranged on the lower end surface.
The screw penetrates through the sealing ring 13 and the sealing gasket to fix the sealing ring and the sealing gasket on the lower end face of the head.
The annular limiting surface is perpendicular to the axis of the valve core assembly mounting hole.
The included angle between the annular limiting surface and the horizontal plane is 45 degrees.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. An angle type check valve, comprising:
the valve comprises a valve body, wherein one end of the valve body is provided with a flow inlet, the other end of the valve body is provided with a flow outlet, a valve core assembly mounting hole is formed in the valve body between the flow inlet and the flow outlet, and an annular limiting surface is arranged in the valve body;
the valve core assembly comprises a valve cover, a piston and a spring, wherein the valve cover is fixedly installed on the valve body, the lower end face of the valve cover is provided with a piston hole, the piston comprises a rod part and a head part, the end part of the rod part extends into the piston hole, the upper end of the spring is connected with the valve cover, and the head part is connected with the lower end of the spring in an abutting mode on the annular limiting surface so that the outflow port and the inflow port are in an open circuit state.
2. The angle check valve as in claim 1, further comprising a bushing disposed between said piston bore wall and said rod, said bushing being fixedly disposed within said piston bore, said rod being in clearance fit with said bushing.
3. The angle type check valve as claimed in claim 1, wherein the valve cover is T-shaped, the valve cover comprises a valve cover cap and a valve cover rod, the valve cover cap and the valve body are fixedly and hermetically connected, the valve cover rod extends into the valve core assembly mounting hole, and the piston hole is positioned on the valve cover rod.
4. An angle type check valve as claimed in claim 3, wherein said bonnet cap and said valve body are sealingly connected by a bonnet gasket.
5. The angle check valve of claim 4, wherein the lower end surface of the bonnet cap and the upper end surface of the valve body each have a sealing groove, and the bonnet gasket is mounted in the sealing groove.
6. An angle type check valve as claimed in claim 3, wherein the valve cover rod is further provided with at least one vent hole in the side wall thereof, the vent hole being in communication with said piston bore.
7. The angle check valve as claimed in claim 1, wherein the head portion has an upper end surface integrally formed with the stem portion and a lower end surface to which the sealing gasket is fixedly attached.
8. The angle check valve of claim 7, wherein a screw passes through the sealing ring and the sealing gasket to fix the sealing ring and the sealing gasket to the lower end surface of the head.
9. The angle check valve as in claim 1, wherein the annular stop surface is perpendicular to the axis of the spool assembly mounting hole.
10. The angle check valve as in claim 9, wherein the annular stop surface is at an angle of 45 degrees to the horizontal.
CN202221465562.XU 2022-06-13 2022-06-13 Angle type check valve Active CN217502699U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221465562.XU CN217502699U (en) 2022-06-13 2022-06-13 Angle type check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221465562.XU CN217502699U (en) 2022-06-13 2022-06-13 Angle type check valve

Publications (1)

Publication Number Publication Date
CN217502699U true CN217502699U (en) 2022-09-27

Family

ID=83360419

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221465562.XU Active CN217502699U (en) 2022-06-13 2022-06-13 Angle type check valve

Country Status (1)

Country Link
CN (1) CN217502699U (en)

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