CN210484691U - Stop check valve - Google Patents
Stop check valve Download PDFInfo
- Publication number
- CN210484691U CN210484691U CN201921115387.XU CN201921115387U CN210484691U CN 210484691 U CN210484691 U CN 210484691U CN 201921115387 U CN201921115387 U CN 201921115387U CN 210484691 U CN210484691 U CN 210484691U
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- China
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- valve
- pin bushing
- clack
- guide pin
- gasket
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Abstract
The utility model relates to a stop check valve, including disk seat, the valve gap of setting on the disk seat and stretch into the disk seat in and with valve gap connection's valve rod, the bottom of valve rod is equipped with the valve clack, and the valve rod overcoat between valve clack and the valve gap has the spring, the valve clack overcoat is equipped with the guide pin bushing, and a plurality of guide sleeve holes have evenly been seted up on the surface to the upper end and the valve cap bottom threaded connection of guide pin bushing in the guide pin bushing, are equipped with the step seal face that supports the valve clack on the inside wall of guide pin bushing lower part, and the. Compared with the prior art, the utility model improve valve gap and valve clack structure, add the guide pin bushing to lower part evenly sets up a plurality of guide sleeve holes in the guide pin bushing on the surface, liquid can follow the guide sleeve hole and flow out, can wholly tear the case open when making the valve installation, and the assembly is simple, convenient, makes the structure of case more stable.
Description
Technical Field
The utility model relates to a stop check valve.
Background
The stop check valve is a multi-purpose valve with the functions of both a stop valve and a check valve, and is similar to the stop valve in structure form, but a valve rod is not fixedly connected with a valve clack. When the valve rod descends to press the valve clack on the valve seat, the valve rod plays a role of a stop valve; the valve rod acts as a check valve when lifted. The use of a stop check valve can save installation costs and space in a pipeline where both a stop valve (or gate valve) and a check valve need to be installed (such as an outlet end of a water pump), or in a place where the installation location is limited (such as a ship). The valve cover of the existing stop check valve is provided with a hollow column extending into the valve seat and a bottom limiting valve clack of the hollow column, and the valve cover and the valve clack of the structure need to be installed well when in use, so that the stability of the valve core is poor easily.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcomes the defects in the prior art and provides a stop check valve.
The utility model provides a technical scheme that its technical problem adopted is: a stop check valve comprises a valve seat, a valve cover arranged on the valve seat and a valve rod extending into the valve seat and connected with the valve cover, wherein a valve clack is arranged at the bottom of the valve rod, a spring is sleeved outside the valve rod between the valve clack and the valve cover, a guide sleeve is sleeved outside the valve clack, the upper end of the guide sleeve is in threaded connection with the bottom of the valve cover, a plurality of guide sleeve holes are uniformly formed in the surface of the middle lower part of the guide sleeve, a step sealing surface for supporting the valve clack is arranged on the inner side wall of the lower part of the.
In order to prevent the valve seat from leaking, a guide sleeve sealing ring is arranged between the outer wall of the bottom of the guide sleeve and the inner wall of the valve seat.
Further inject, the bottom border of valve clack is provided with the valve clack gasket, and valve clack gasket below is provided with the clamp plate, and clamp plate and valve clack gasket compress tightly fixedly through borduring.
And further limiting, the width of the valve clack gasket is larger than that of the pressure plate, and the step sealing surface of the guide sleeve is in contact with and seals the valve clack gasket extending out of the pressure plate part.
In order to ensure the sealing performance between the valve cover and the valve seat, the valve cover and the valve seat are further limited to be fixed through bolts, and a flange gasket is arranged on the contact surface of the valve cover and the valve seat.
Further inject, the top of valve rod is equipped with the hand wheel, the upper end of valve gap is equipped with sealed lid, has set gradually scraping ring, sealing washer, filler and packing gasket from top to bottom between sealed lid and the valve rod.
The utility model has the advantages that: compared with the prior art, the utility model improve valve gap and valve clack structure, add the guide pin bushing to lower part evenly sets up a plurality of guide sleeve holes in the guide pin bushing on the surface, liquid can follow the guide sleeve hole and flow out, can wholly tear the case open when making the valve installation, and the assembly is simple, convenient, makes the structure of case more stable.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
In the figure: 1. the sealing structure comprises a valve seat, 2 parts of a valve cover, 3 parts of a valve rod, 4 parts of a valve clack, 5 parts of a spring, 6 parts of a guide sleeve, 7 parts of a valve clack gasket, 8 parts of a pressure plate, 9 parts of a bolt, 10 parts of a flange gasket, 11 parts of a hand wheel, 12 parts of a sealing cover, 13 parts of a scraping ring, 14 parts of a sealing ring, 15 parts of a filler, 16 parts of a filler gasket, 1.1 parts of an inlet pipe, 1.2 parts of an outlet pipe, 4.1 parts of a bound edge, 6.1 parts of a guide sleeve hole, 6.2 parts of a step.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
Example 1
As shown in fig. 1, a stop check valve comprises a valve seat 1, a valve cover 2 arranged on the valve seat 1 and a valve rod 3 extending into the valve seat 1 and connected with the valve cover 2, wherein the valve seat 1 is a straight-through valve seat, the central lines of an inlet pipe 1.1 and an outlet pipe 1.2 of the valve seat are on the same straight line, the bottom of the valve rod 3 is provided with a valve clack 4, a spring 5 is sleeved outside the valve rod 3 between the valve clack 4 and the valve cover 2, a guide sleeve 6 is sleeved outside the valve clack 4, the upper end of the guide sleeve 6 is in threaded connection with the bottom of the valve cover 2, the surface of the middle lower part of the guide sleeve 6 is uniformly provided with a plurality of guide sleeve holes 6.1, the inner side wall of the lower part of the guide. A guide sleeve sealing ring 6.3 is arranged between the outer wall of the bottom of the guide sleeve 6 and the inner wall of the valve seat 1.
The bottom border of valve clack 4 is provided with valve clack gasket 7, and valve clack gasket 7 below is provided with clamp plate 8, and clamp plate 8 and valve clack gasket 7 compress tightly fixedly through borduring 4.1. The width of the valve clack gasket 7 is larger than that of the pressure plate 8, and the step sealing surface 6.2 of the guide sleeve 6 is contacted and sealed with the valve clack gasket 7 extending out of the pressure plate 8. The valve cover 2 and the valve seat 1 are fixed through bolts 9, and a flange gasket 10 is arranged on the contact surface of the valve cover 2 and the valve seat. The top of the valve rod 3 is provided with a hand wheel 11, the upper end of the valve cover 2 is provided with a sealing cover 12, and a scraping ring 13, a sealing ring 14, a packing 15 and a packing gasket 16 are sequentially arranged between the sealing cover 12 and the valve rod 3 from top to bottom.
Example 2
As shown in fig. 2, a stop check valve, including disk seat 1, set up valve gap 2 on disk seat 1 and stretch into disk seat 1 in and the valve rod 3 of being connected with valve gap 2, disk seat 1 is right angle disk seat, its import pipe 1.1 becomes 90 contained angles with the central line of outlet pipe 1.2, the bottom of valve rod 3 is equipped with valve clack 4, valve rod 3 overcoat between valve clack 4 and the valve gap 2 has spring 5, valve clack 4 overcoat is equipped with guide pin bushing 6, the upper end and the valve gap 2 bottom threaded connection of guide pin bushing 6, a plurality of guide pin bushing holes 6.1 have evenly been seted up on the lower part surface in the guide pin bushing 6, be equipped with the step sealed face 6.2 that supports valve clack 4 on the lower part inside wall of guide pin bushing 6, the height of. A guide sleeve sealing ring 6.3 is arranged between the outer wall of the bottom of the guide sleeve 6 and the inner wall of the valve seat 1.
The bottom border of valve clack 4 is provided with valve clack gasket 7, and valve clack gasket 7 below is provided with clamp plate 8, and clamp plate 8 and valve clack gasket 7 compress tightly fixedly through borduring 4.1. The width of the valve clack gasket 7 is larger than that of the pressure plate 8, and the step sealing surface 6.2 of the guide sleeve 6 is contacted and sealed with the valve clack gasket 7 extending out of the pressure plate 8. The valve cover 2 and the valve seat 1 are fixed through bolts 9, and a flange gasket 10 is arranged on the contact surface of the valve cover 2 and the valve seat. The top of the valve rod 3 is provided with a hand wheel 11, the upper end of the valve cover 2 is provided with a sealing cover 12, and a scraping ring 13, a sealing ring 14, a packing 15 and a packing gasket 16 are sequentially arranged between the sealing cover 12 and the valve rod 3 from top to bottom.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable people skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (6)
1. The utility model provides a stop check valve, includes disk seat (1), set up valve gap (2) on disk seat (1) and stretch into disk seat (1) and valve rod (3) of being connected with valve gap (2), the bottom of valve rod (3) is equipped with valve clack (4), and valve rod (3) overcoat between valve clack (4) and valve gap (2) has spring (5), its characterized in that: the valve clack (4) overcoat is equipped with guide pin bushing (6), and the upper end and valve gap (2) bottom threaded connection of guide pin bushing (6), evenly seted up a plurality of guide pin bushing holes (6.1) on the lower part surface in guide pin bushing (6), be equipped with the step seal face (6.2) that support valve clack (4) on the lower part inside wall of guide pin bushing (6), the height of guide pin bushing (6) is greater than the height of guide pin bushing hole (6.1).
2. The check valve of claim 1, wherein: and a guide sleeve sealing ring (6.3) is arranged between the outer wall of the bottom of the guide sleeve (6) and the inner wall of the valve seat (1).
3. The check valve of claim 1, wherein: the bottom border of valve clack (4) is provided with valve clack gasket (7), and valve clack gasket (7) below is provided with clamp plate (8), and clamp plate (8) and valve clack gasket (7) compress tightly fixedly through borduring (4.1).
4. The check valve of claim 3, wherein: the width of the valve clack gasket (7) is larger than that of the pressure plate (8), and the step sealing surface (6.2) of the guide sleeve (6) is in contact with and seals the valve clack gasket (7) extending out of the pressure plate (8).
5. The check valve of claim 1, wherein: the valve cover (2) and the valve seat (1) are fixed through bolts (9), and flange gaskets (10) are arranged on contact surfaces of the valve cover and the valve seat.
6. The check valve of claim 1, wherein: the top of valve rod (3) is equipped with hand wheel (11), the upper end of valve gap (2) is equipped with sealed lid (12), has set gradually scraping ring (13), sealing washer (14), filler (15) and packing gasket (16) from top to bottom between sealed lid (12) and valve rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921115387.XU CN210484691U (en) | 2019-07-16 | 2019-07-16 | Stop check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921115387.XU CN210484691U (en) | 2019-07-16 | 2019-07-16 | Stop check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210484691U true CN210484691U (en) | 2020-05-08 |
Family
ID=70531576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921115387.XU Active CN210484691U (en) | 2019-07-16 | 2019-07-16 | Stop check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210484691U (en) |
-
2019
- 2019-07-16 CN CN201921115387.XU patent/CN210484691U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |