CN217177653U - Corrugated pipe stop valve with good valve rod sealing performance - Google Patents
Corrugated pipe stop valve with good valve rod sealing performance Download PDFInfo
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- CN217177653U CN217177653U CN202220405563.9U CN202220405563U CN217177653U CN 217177653 U CN217177653 U CN 217177653U CN 202220405563 U CN202220405563 U CN 202220405563U CN 217177653 U CN217177653 U CN 217177653U
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Abstract
A corrugated pipe stop valve with good valve rod sealing performance comprises a valve body, a multi-section valve rod and a valve cover, wherein a valve cavity is formed in the valve body, one end of the multi-section valve rod penetrates through the valve cover and extends into the valve cavity, a valve seat and a valve clack are arranged in the valve cavity, one end, extending into the valve cavity, of the multi-section valve rod is connected with the valve clack, the multi-section valve rod comprises an upper valve rod, a lower valve rod, a valve rod connecting piece and a valve rod sealing piece, the valve rod connecting piece and the valve rod sealing piece are arranged between the upper valve rod and the lower valve rod, the valve rod connecting piece penetrates through the valve rod sealing piece to be arranged, the two ends of the valve rod connecting piece are correspondingly connected with the upper valve rod and the lower valve rod, the valve rod sealing piece is arranged on the valve rod connecting piece and is provided with a valve rod sealing part, the two ends of the valve rod sealing part are connected with the upper valve rod and the lower valve rod in a sealing manner, by arranging the valve rod into a multi-section structure and arranging the valve rod sealing element between the upper valve rod and the lower valve rod, guarantee the sealing performance of multistage formula valve rod when making the valve rod can dismantle the change.
Description
Technical Field
The utility model relates to a bellows stop valve technical field, concretely relates to bellows stop valve that valve rod sealing performance is good.
Background
Present bellows stop valve rod is mostly the integral type structure, and the valve rod needs to change whole valve rod after the part damages appearing, leads to cost of maintenance to increase, and its sealed effect of current multistage formula valve rod is not good, takes place to leak in the segmentation department of valve rod easily, consequently needs a sealed effectual sectional type valve rod urgently.
Disclosure of Invention
In view of this, the utility model provides a bellows stop valve that valve rod sealing performance is good.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a bellows stop valve that valve rod sealing performance is good, includes valve body, multistage formula valve rod and valve gap, form the valve pocket in the valve body, multistage formula valve rod one end is passed the valve gap and is stretched into the valve pocket, set up disk seat and valve clack in the valve pocket, the one end that multistage formula valve rod stretched into the valve pocket is connected with the valve clack, the multistage formula valve rod includes valve rod, lower valve rod, valve rod connecting piece and valve rod sealing member all set up at last valve rod under and between the valve rod, the valve rod connecting piece runs through the valve rod sealing member setting, valve rod and lower valve rod are connected in the both ends correspondence of valve rod connecting piece, valve rod sealing member sets up on the valve rod connecting piece, valve rod sealing member has valve rod sealing portion, valve rod sealing portion both ends and last valve rod meet with lower valve rod sealing.
The preferred, valve rod and lower valve rod set up seal groove and seal groove down on the valve rod sealing member corresponds, go up and set up connect the through-hole between seal groove and the lower seal groove, valve rod connecting piece sets up in connecting the through-hole, valve rod connecting piece has last link and lower link, go up the link and stretch into corresponding last seal groove and lower seal groove with lower link, go up valve rod and lower valve rod correspondence and stretch into last seal groove and seal groove down, go up the valve rod and be connected with the last link of valve rod connecting piece, the lower valve rod is connected with valve rod connecting piece's lower link.
Preferably, the upper valve rod and the lower valve rod are respectively provided with an upper screw hole and a lower screw hole, the upper connecting end and the lower connecting end are respectively provided with an external thread, and the upper connecting end and the lower connecting end stretch into the corresponding upper screw hole and the corresponding lower screw hole to be respectively in threaded connection with the upper valve rod and the lower valve rod.
Preferably, a sealing cavity is formed between the multi-section valve rod and the valve cover, the sealing cavity is divided into an upper sealing cavity and a lower sealing cavity by the valve rod sealing element, an upper sealing filler is arranged in the upper sealing cavity, a lower sealing filler is arranged in the lower sealing cavity, and the lower part of the valve rod sealing element compresses and seals the lower sealing filler.
Preferably, a packing gland is arranged on the valve cover, one end of the packing gland extends into the upper sealing cavity to press and seal the upper sealing packing in the upper sealing cavity, and the other end of the packing gland is fixedly connected with the valve cover.
Preferably, the valve rod sealing element is made of rubber, and the aperture of the connecting through hole is smaller than the outer diameter of the valve rod connecting piece.
The beneficial effects of the utility model reside in that: the utility model discloses a set up the valve rod into multistage formula structure to set up valve rod sealing member between last valve rod and lower valve rod, guarantee the sealing performance of multistage formula valve rod when making the valve rod can dismantle the change.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged view of a portion a of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The invention will be further described with reference to the accompanying drawings.
The utility model provides a following technical scheme:
as shown in the attached drawing 2, the utility model discloses a bellows stop valve with good valve rod sealing performance, which comprises a valve body 1, a multi-section valve rod 2 and a valve cover 3, wherein a valve cavity 4 is formed in the valve body 1, one end of the multi-section valve rod 2 penetrates through the valve cover 3 and extends into the valve cavity 4, a valve seat 5 and a valve clack 6 are arranged in the valve cavity 4, one end of the multi-section valve rod 2 extending into the valve cavity 4 is connected with the valve clack 6, the multi-section valve rod 2 comprises an upper valve rod 7, a lower valve rod 8, a valve rod connecting piece 9 and a valve rod sealing piece 10, the valve rod connecting piece 9 and the valve rod sealing piece 10 are both arranged between the upper valve rod 7 and the lower valve rod 8, the valve rod connecting piece 9 penetrates through the valve rod sealing piece 10, the two ends of the valve rod connecting piece 9 are correspondingly connected with the upper valve rod 7 and the lower valve rod 8, the valve rod sealing piece 10 is arranged on the valve rod connecting piece 9, the valve rod sealing piece 10 is provided with a valve rod sealing part 11, and two ends of the valve rod sealing part 11 are connected with the upper valve rod 7 and the lower valve rod 8 in a sealing way. Specifically, in this design, through setting up the valve rod into multistage formula structure to set up valve rod sealing member 10 between last valve rod 7 and lower valve rod 8, guarantee multistage formula valve rod 2's sealing performance when making the valve rod can dismantle the change.
Further, it sets up seal groove 13 and lower seal groove 14 to correspond last valve rod 7 and lower valve rod 8 on valve rod sealing member 10, go up and set up connect the through hole 15 between seal groove 13 and the lower seal groove 14, valve rod connecting piece 9 sets up in connect the through hole 15, valve rod connecting piece 9 has last link 16 and lower link 17, it stretches into corresponding last seal groove 13 and lower seal groove 14 with lower link 17 to go up link 16, it corresponds to stretch into last seal groove 13 and lower seal groove 14 with lower valve rod 8 to go up valve rod 7, it is connected with the last link 16 of valve rod connecting piece 9 to go up valve rod 7, lower valve rod 8 is connected with the lower link 17 of valve rod connecting piece 9. Specifically, valve rod sealing member 10 is the rubber material, connect through hole 15's aperture is less than valve rod connecting piece 9's external diameter, because valve rod sealing member 10 of rubber material has deformable effect, therefore when valve rod connecting piece 9 passed connect through hole 15, can enlarge connect through hole 15's aperture, make connect through hole 15's the pore wall at utmost with valve rod connecting piece 9's outer wall laminating, realize sealed effect, and go up seal groove 13 and lower seal groove 14's setting and can seal the last link 16 and the lower link 17 that stretch into wherein, avoid going up link 16 and appearing leaking between lower link 17 (be valve rod 7 and lower valve rod 8).
Further, last screw 18 and lower screw 19 are set up respectively on last valve rod 7 and the lower valve rod 8, all set up the external screw thread on last link 16 and the lower link 17, last link 16 and lower link 17 stretch into corresponding last screw 18 and lower screw 19 and last valve rod 7 and lower valve rod 8 threaded connection respectively. Specifically, for the dismouting change of conveniently going up valve rod 7 and lower valve rod 8, adopt threaded connection's mode to carry out threaded connection with last valve rod 7 and lower valve rod 8 and valve rod connecting piece 9 in this embodiment to make things convenient for the dismouting when guaranteeing joint strength.
Further, a sealing cavity is formed between the multi-section valve rod 2 and the valve cover, the valve rod sealing member 10 divides the sealing cavity into an upper sealing cavity 20 and a lower sealing cavity 21, an upper sealing packing 22 is arranged in the upper sealing cavity 20, a lower sealing packing 23 is arranged in the lower sealing cavity 21, and the lower portion of the valve rod sealing member 10 compresses and seals the lower sealing packing 23. Further, a packing gland 24 is arranged on the valve cover 3, one end of the packing gland 24 extends into the upper sealing cavity 20 to compress and seal the upper sealing packing 22 in the upper sealing cavity 20, and the other end of the packing gland 24 is fixedly connected with the valve cover 3. Specifically, the packing gland 24 causes the upper packing 22 to compress the stem seal 10 when compressing the upper packing 22, thereby causing the stem seal 10 to compress the lower packing 23.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a valve rod sealing performance is good bellows stop valve which characterized in that: including valve body, multistage formula valve rod and valve gap, form the valve pocket in the valve body, multistage formula valve rod one end is passed the valve gap and is stretched into the valve pocket, set up disk seat and valve clack in the valve pocket, the one end that multistage formula valve rod stretched into the valve pocket is connected with the valve clack, the multistage formula valve rod includes valve rod, lower valve rod, valve rod connecting piece and valve rod sealing member all set up at last valve rod under and between the valve rod, the valve rod connecting piece runs through the valve rod sealing member setting, valve rod and lower valve rod are connected in the both ends correspondence of valve rod connecting piece, valve rod sealing member sets up on the valve rod connecting piece, valve rod sealing member has valve rod sealing portion, valve rod sealing portion both ends meet with last valve rod and lower valve rod sealing.
2. The bellows stop valve with good valve rod sealing performance according to claim 1, characterized in that: the valve rod sealing element is corresponding to go up the valve rod and set up seal groove and seal groove down with lower valve rod, go up and set up connect the through-hole between seal groove and the lower seal groove, the valve rod connecting piece sets up in the connect through-hole, the valve rod connecting piece has last link and lower link, go up the link and stretch into corresponding last seal groove and lower seal groove with lower link, go up the valve rod and correspond with lower valve rod and stretch into last seal groove and seal groove down, go up the valve rod and be connected with the last link of valve rod connecting piece, the lower valve rod is connected with the lower link of valve rod connecting piece.
3. The bellows stop valve with good valve rod sealing performance according to claim 2, characterized in that: go up and set up screw and screw down on the valve rod and the lower valve rod respectively, all set up the external screw thread on last link and the lower link, go up the link and stretch into corresponding last screw and screw down respectively with last valve rod and lower valve rod threaded connection with the link down.
4. The bellows stop valve with good valve rod sealing performance according to claim 1, characterized in that: a sealing cavity is formed between the multi-section valve rod and the valve cover, the sealing cavity is divided into an upper sealing cavity and a lower sealing cavity by the valve rod sealing element, upper sealing filler is arranged in the upper sealing cavity, lower sealing filler is arranged in the lower sealing cavity, and the lower part of the valve rod sealing element compresses and seals the lower sealing filler.
5. The bellows stop valve with good valve rod sealing performance according to claim 4, characterized in that: the valve cover is provided with a packing gland, one end of the packing gland extends into the upper sealing cavity to compress and seal the upper sealing packing in the upper sealing cavity, and the other end of the packing gland is fixedly connected with the valve cover.
6. The bellows stop valve with good valve rod sealing performance according to claim 2, characterized in that: the valve rod sealing element is made of rubber, and the aperture of the connecting through hole is smaller than the outer diameter of the valve rod connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220405563.9U CN217177653U (en) | 2022-02-26 | 2022-02-26 | Corrugated pipe stop valve with good valve rod sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220405563.9U CN217177653U (en) | 2022-02-26 | 2022-02-26 | Corrugated pipe stop valve with good valve rod sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217177653U true CN217177653U (en) | 2022-08-12 |
Family
ID=82739861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220405563.9U Active CN217177653U (en) | 2022-02-26 | 2022-02-26 | Corrugated pipe stop valve with good valve rod sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217177653U (en) |
-
2022
- 2022-02-26 CN CN202220405563.9U patent/CN217177653U/en active Active
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