CN216112231U - Double-seal butterfly valve - Google Patents
Double-seal butterfly valve Download PDFInfo
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- CN216112231U CN216112231U CN202121659686.7U CN202121659686U CN216112231U CN 216112231 U CN216112231 U CN 216112231U CN 202121659686 U CN202121659686 U CN 202121659686U CN 216112231 U CN216112231 U CN 216112231U
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- butterfly plate
- butterfly
- plate
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Abstract
The utility model discloses a double-seal butterfly valve which comprises a valve body, an upper valve rod and a lower valve rod, wherein a valve hole is formed in the valve body, an inner cavity is formed in the valve body, a butterfly plate structure is arranged in the inner cavity, the upper end of the butterfly plate structure is fixedly connected with one end of the upper valve rod, the other end of the upper valve rod penetrates through the valve hole to be connected with a driving device, the lower end of the butterfly plate structure is fixedly connected with one end of the lower valve rod, the other end of the lower valve rod is fixedly connected with a lower end cover, the butterfly plate structure is composed of a front butterfly plate, a rear butterfly plate, a connecting block and a rib plate, wear-resistant sleeves are sleeved outside the front butterfly plate and the rear butterfly plate, inner embedded grooves are formed in two sides in the valve body, U-shaped rings are arranged in the embedded grooves, elastic rings are arranged in the U-shaped rings, and the U-shaped rings are in contact with the wear-resistant sleeves; the utility model can realize double sealing and is simple and convenient to disassemble and assemble the sealing ring.
Description
Technical Field
The utility model relates to the technical field of butterfly valves, in particular to a double-seal butterfly valve.
Background
The butterfly valve is also called a flap valve and is a regulating valve with simple structure, the butterfly valve which can be used for the on-off control of a low-pressure pipeline medium is a valve of which a closing part is a disc and which rotates around a valve rod to open and close, and the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like and mainly plays the roles of cutting off and throttling on the pipeline; the butterfly valve in the prior art is mostly provided with a seal, the butterfly plate is frequently opened and closed, the seal ring is easily abraded after long-time use, the seal ring is replaced after the whole butterfly plate is detached, and the butterfly valve is inconvenient to operate.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a double-seal butterfly valve which can realize double sealing and is simple and convenient to disassemble and assemble a sealing ring.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a double containment butterfly valve, includes the valve body, goes up valve stem and lower valve rod, be equipped with the valve opening on the valve body, be equipped with the inner chamber on the valve body, the intracavity is equipped with the butterfly plate structure, butterfly plate structure upper end with go up valve stem one end fixed connection, it passes to go up the valve stem other end the valve opening is connected with drive arrangement, butterfly plate structure lower extreme with lower valve stem one end fixed connection, the valve stem other end and lower end cover fixed connection down, the butterfly plate structure comprises preceding butterfly plate, back butterfly plate, connecting block and gusset, preceding butterfly plate with the outer all overlaps of back butterfly plate is equipped with wear-resisting cover, the inner both sides all are equipped with interior caulking groove in the valve body, be equipped with U-shaped circle in the interior caulking groove, be equipped with the elastic ring in the U-shaped circle, U-shaped circle with wear-resisting cover contacts with.
By adopting the technical scheme, the utility model has the following advantages:
according to the utility model, the wear-resistant sleeves are sleeved outside the front butterfly plate and the rear butterfly plate, so that the front butterfly plate and the rear butterfly plate are protected, and only the wear-resistant sleeves need to be replaced after the wear-resistant sleeves are worn and damaged, so that the service lives of the front butterfly plate and the rear butterfly plate are prolonged, and the maintenance and replacement cost is reduced; according to the butterfly valve, the inner embedded grooves are formed in the two sides in the valve body, the U-shaped rings are arranged in the inner embedded grooves, the elastic rings are arranged in the U-shaped rings, the U-shaped rings are in contact with the wear-resistant sleeves, the sealing performance between the butterfly plate and the valve body is improved, the U-shaped rings are arranged on the two sides of the valve body, the butterfly valve has double sealing performance, when the U-shaped ring on one side is damaged, the U-shaped ring on the other side continues to achieve the sealing performance, and the elastic rings are arranged, so that the sealing performance between the U-shaped rings and the wear-resistant sleeves is further improved.
Furthermore, an upper packing seat is arranged between the upper end of the upper valve rod and the valve body, sealing packing is arranged in the upper packing seat, two O-shaped rings are arranged at the lower end of the upper packing seat, and a packing cover plate is arranged at the upper end of the upper packing seat.
By adopting the technical scheme, the utility model has the following advantages:
according to the utility model, the upper packing seat is arranged between the upper end of the upper valve rod and the valve body, the sealing packing is arranged in the upper packing seat, the two O-shaped rings are arranged at the lower end of the upper packing seat, and the packing cover plate is arranged at the upper end of the upper packing seat, so that the sealing property between the upper valve rod and the valve body is enhanced.
Furthermore, a lower filler seat is arranged between the lower end of the lower valve rod and the valve body, the sealing filler is arranged in the lower filler seat, and the lower filler seat is provided with the O-shaped ring.
By adopting the technical scheme, the utility model has the following advantages:
according to the utility model, the lower filler seat is arranged between the lower end of the lower valve rod and the valve body, the sealing filler is arranged in the lower filler seat, and the O-shaped ring is arranged on the lower filler seat, so that the sealing property between the lower valve rod and the valve body is enhanced.
Furthermore, the front butterfly plate and the rear butterfly plate are respectively fixed on two sides of the connecting block through bolts.
By adopting the technical scheme, the utility model has the following advantages:
according to the utility model, the front butterfly plate and the rear butterfly plate are respectively fixed on two sides of the connecting block through bolts, through the arrangement of bolt connection, when the front butterfly plate or the rear butterfly plate is damaged, only the damaged one is needed to be replaced, the whole butterfly plate is not needed to be replaced, and when one side U-shaped ring or elastic ring is damaged, only the butterfly plate on one side is needed to be detached, so that the U-shaped ring or elastic ring can be replaced, the maintenance cost is reduced, and the detachment and replacement are convenient.
Furthermore, the rib plates are arranged between the connecting blocks.
By adopting the technical scheme, the utility model has the following advantages:
the rib plates are arranged between the connecting blocks, so that the pressure resistance of the front butterfly plate and the rear butterfly plate is enhanced, and the front butterfly plate or the rear butterfly plate is prevented from deforming under the action of fluid pressure.
Furthermore, the rib plate is composed of an inclined plate and a transverse plate, and the inclined plate is arranged between the transverse plate and the connecting block.
By adopting the technical scheme, the utility model has the following advantages:
the rib plate comprises an inclined plate and a transverse plate, the inclined plate is arranged between the transverse plate and the connecting block, and the inclined plate and the transverse plate are arranged.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is an enlarged view of the utility model at A;
FIG. 4 is a schematic view of the butterfly plate structure of the present invention.
Reference numerals: 1. a valve body; 101. an embedded groove is formed; 2. a butterfly plate structure; 201. a front butterfly plate; 202. a rear butterfly plate; 3. a lower valve stem; 4. a rib plate; 401. a transverse plate; 402. a sloping plate; 5. an upper valve stem; 6. a drive device; 7. an upper filler seat; 701. a filler cover plate; 8. an O-shaped ring; 9. sealing and filling; 10. a lower packing seat; 11. connecting blocks; 12. a lower end cover; 13. a wear-resistant sleeve; 14. a U-shaped ring; 15. an elastic ring.
Detailed Description
As shown in fig. 1 to 3, in a specific embodiment, a double-seal butterfly valve includes a valve body 1, an upper valve rod 5 and a lower valve rod 3, a valve hole is formed in the valve body 1, an inner cavity is formed in the valve body 1, a butterfly plate structure 2 is arranged in the inner cavity, the upper end of the butterfly plate structure 2 is fixedly connected with one end of the upper valve rod 5, the other end of the upper valve rod 5 penetrates through the valve hole to be connected with a driving device 6, the lower end of the butterfly plate structure 2 is fixedly connected with one end of the lower valve rod 3, the other end of the lower valve rod 3 is fixedly connected with a lower end cover 12, the butterfly plate structure 2 is composed of a front butterfly plate 201, a rear butterfly plate 202, a connecting block 11 and a rib plate 4, wear-resistant sleeves 13 are respectively sleeved on the front butterfly plate 201 and the rear butterfly plate 202, inner embedded grooves 101 are respectively formed on two sides in the valve body 1, U-shaped rings 14 are provided with elastic rings 15, and the U-shaped rings 14 are in contact with the wear-resistant sleeves 13.
Through the arrangement, the wear-resistant sleeves 13 are sleeved outside the front butterfly plate 201 and the rear butterfly plate 202, the wear-resistant sleeves 13 play a role in protecting the front butterfly plate 201 and the rear butterfly plate 202, when the wear-resistant sleeves 13 are worn and damaged, only the wear-resistant sleeves 13 need to be replaced, the service lives of the front butterfly plate 201 and the rear butterfly plate 202 are prolonged, and the maintenance and replacement cost is reduced; according to the butterfly valve, the inner embedded grooves 101 are formed in two sides of the valve body 1, the U-shaped rings 14 are arranged in the embedded grooves 101, the elastic rings 15 are arranged in the U-shaped rings 14, the U-shaped rings 14 are in contact with the wear-resistant sleeve 13, the sealing performance between the butterfly plate and the valve body 1 is improved, the U-shaped rings 14 are arranged on the two sides of the valve body 1, so that the butterfly valve has double sealing performance, when the U-shaped ring 14 on one side is damaged, the U-shaped ring 14 on the other side continues to achieve the sealing performance, and the elastic rings 15 are arranged, so that the sealing performance between the U-shaped ring 14 and the wear-resistant sleeve 13 is further enhanced.
As shown in fig. 2, an upper packing seat 7 is arranged between the upper end of the upper valve rod 5 and the valve body 1, a sealing packing 9 is arranged in the upper packing seat 7, two O-rings 8 are arranged at the lower end of the upper packing seat 7, and a packing cover plate 701 is arranged at the upper end of the upper packing seat 7; a lower packing seat 10 is arranged between the lower end of the lower valve rod 3 and the valve body 1, a sealing packing 9 is arranged in the lower packing seat 10, and an O-shaped ring 8 is arranged on the lower packing seat 10.
Through the arrangement, an upper packing seat 7 is arranged between the upper end of the upper valve rod 5 and the valve body 1, sealing packing 9 is arranged in the upper packing seat 7, two O-shaped rings 8 are arranged at the lower end of the upper packing seat 7, and a packing cover plate 701 is arranged at the upper end of the upper packing seat 7, so that the sealing property between the upper valve rod 5 and the valve body 1 is enhanced; according to the utility model, the lower filler seat 10 is arranged between the lower end of the lower valve rod 3 and the valve body 1, the sealing filler 9 is arranged in the lower filler seat 10, and the O-shaped ring 8 is arranged on the lower filler seat 10, so that the sealing property between the lower valve rod 3 and the valve body 1 is enhanced.
As shown in fig. 4, the front butterfly plate 201 and the rear butterfly plate 202 are respectively fixed on both sides of the connecting block 11 by bolts; rib plates 4 are arranged between the connecting blocks 11; the rib plate 4 is composed of a sloping plate 402 and a horizontal plate 401, and the sloping plate 402 is arranged between the horizontal plate 401 and the connecting block 11.
Through the arrangement, the front butterfly plate 201 and the rear butterfly plate 202 are respectively fixed on two sides of the connecting block 11 through bolts, through the arrangement of bolt connection, when the front butterfly plate 201 or the rear butterfly plate 202 is damaged, only the damaged one needs to be replaced, the whole butterfly plate does not need to be replaced, and when the U-shaped ring 14 or the elastic ring 15 on one side is damaged, only the butterfly plate on one side needs to be detached, the U-shaped ring 14 or the elastic ring 15 can be replaced, so that the maintenance cost is reduced, and the detachment and replacement are convenient; the rib plates 4 are arranged between the connecting blocks 11, and the arrangement of the rib plates 4 strengthens the pressure resistance of the front butterfly plate 201 and the rear butterfly plate 202, so that the front butterfly plate 201 or the rear butterfly plate 202 is prevented from deforming under the action of fluid pressure; the rib plate 4 of the butterfly valve is composed of a sloping plate 402 and a horizontal plate 401, the sloping plate 402 is arranged between the horizontal plate 401 and the connecting block 11, the sloping plate 402 and the horizontal plate 401 are arranged, when the butterfly valve is opened, the butterfly plate is rotated, so that fluid can pass through the two sides of the butterfly plate and also can pass through the horizontal plate 401 and the sloping plate 402, and the flow of the fluid is increased.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (6)
1. The utility model provides a double-seal butterfly valve, includes valve body (1), upper valve rod (5) and lower valve rod (3), its characterized in that, be equipped with the valve opening on valve body (1), be equipped with the inner chamber on valve body (1), the intracavity is equipped with butterfly plate structure (2), butterfly plate structure (2) upper end with upper valve rod (5) one end fixed connection, the upper valve rod (5) other end passes the valve opening is connected with drive arrangement (6), butterfly plate structure (2) lower extreme with lower valve rod (3) one end fixed connection, lower valve rod (3) other end and lower end cover (12) fixed connection, butterfly plate structure (2) comprise preceding butterfly plate (201), back butterfly plate (202), connecting block (11) and gusset (4), preceding butterfly plate (201) with all the cover is equipped with wear-resisting cover (13) outward of back butterfly plate (202), valve body (1) interior both sides all are equipped with interior caulking groove (101), the wear-resistant sleeve is characterized in that a U-shaped ring (14) is arranged in the inner embedded groove (101), an elastic ring (15) is arranged in the U-shaped ring (14), and the U-shaped ring (14) is in contact with the wear-resistant sleeve (13).
2. The dual seal butterfly valve according to claim 1, wherein an upper packing seat (7) is provided between the upper end of the upper valve stem (5) and the valve body (1), a sealing packing (9) is provided in the upper packing seat (7), two O-rings (8) are provided at the lower end of the upper packing seat (7), and a packing cover plate (701) is provided at the upper end of the upper packing seat (7).
3. The dual seal butterfly valve according to claim 2, wherein a lower packing seat (10) is provided between the lower end of the lower valve stem (3) and the valve body (1), the sealing packing (9) is provided in the lower packing seat (10), and the O-ring (8) is provided on the lower packing seat (10).
4. The dual seal butterfly valve according to claim 1, wherein the front butterfly plate (201) and the rear butterfly plate (202) are fixed to both sides of the connecting block (11) by bolts, respectively.
5. The dual seal butterfly valve according to claim 1, wherein the rib plates (4) are provided between the connecting blocks (11).
6. The dual seal butterfly valve according to claim 5, wherein the rib plate (4) is composed of a sloping plate (402) and a cross plate (401), and the sloping plate (402) is disposed between the cross plate (401) and the connecting block (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121659686.7U CN216112231U (en) | 2021-07-21 | 2021-07-21 | Double-seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121659686.7U CN216112231U (en) | 2021-07-21 | 2021-07-21 | Double-seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216112231U true CN216112231U (en) | 2022-03-22 |
Family
ID=80722756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121659686.7U Active CN216112231U (en) | 2021-07-21 | 2021-07-21 | Double-seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216112231U (en) |
-
2021
- 2021-07-21 CN CN202121659686.7U patent/CN216112231U/en active Active
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