CN221034117U - Combined smoke-return-preventing check valve - Google Patents
Combined smoke-return-preventing check valve Download PDFInfo
- Publication number
- CN221034117U CN221034117U CN202321728029.2U CN202321728029U CN221034117U CN 221034117 U CN221034117 U CN 221034117U CN 202321728029 U CN202321728029 U CN 202321728029U CN 221034117 U CN221034117 U CN 221034117U
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- China
- Prior art keywords
- fixedly connected
- valve body
- pipeline
- plate
- body pipeline
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Links
- 230000002265 prevention Effects 0.000 claims abstract description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model relates to the field of valves, and particularly discloses a combined smoke-return prevention check valve, which comprises: the device comprises a base, wherein a valve body pipeline is arranged at the right end of the base, an outer plate is arranged on the valve body pipeline, a connecting pipeline is arranged at the right end of the valve body pipeline, an annular bump is arranged in the valve body pipeline, an air door leaf plate is arranged in the valve body pipeline, and a fixed block is arranged at the right end below the air door leaf plate; the upper end and the lower end of the right end of the outer plate are symmetrically provided with a placing groove, a sliding rod is arranged in the placing groove, and a connecting plate is arranged above the sliding rod; the right end of the connecting plate is provided with a T-shaped block, the upper end and the lower end of the connecting pipeline are symmetrically and fixedly connected with a placing block, and a spring is arranged in the placing block; through being provided with the air door leaf in the inside of valve, can let smog pass through, the pulling piece can drive T type piece to make things convenient for valve pipeline and connecting tube to separate, easy operation is convenient, and danger coefficient is low, and the rate of utilization is high.
Description
Technical Field
The utility model relates to the field of valves, in particular to a combined smoke-return prevention check valve.
Background
The check valve is a valve with a circular valve clack and used for blocking the backflow of a medium by the action of the self weight and the pressure of the medium, and belongs to automatic valves, namely a check valve, a one-way valve, a reflux valve or an isolation valve, wherein the movement mode of the valve clack is divided into a lifting type and a swing type.
Chinese patent CN203309217U discloses a fire-proof check valve for discharging fume, which comprises a tubular valve housing, a valve plate and a non-return device, wherein the valve plate is circular and is rotatably connected to the valve housing through a valve plate rotating shaft, and the axis of the valve plate rotating shaft is a secant deviating from the center of the valve plate; the non-return device comprises a fixed non-return rod, a movable non-return rod, a torsion spring and a metal fastener, wherein one end of the fixed non-return rod and the metal fastener are fixed on the valve shell and positioned on the minor arc side of the valve plate after being divided by the valve plate rotating shaft; the other end of the fixed check rod and the movable check rod are movably connected with a torsion spring through a movable shaft, one torsion arm of the torsion spring is connected with the fixed check rod, the other torsion arm of the torsion spring is connected with the movable check rod, and a force is applied to the movable check rod to the center of the valve plate so that the movable check rod generates a trend of moving towards the center of the valve plate; the other end of the movable non-return rod is connected with a metal fastener to prevent the movable non-return rod from moving towards the center of the valve plate.
However, the above-mentioned patents cannot be assembled and installed, and may not be assembled and installed with other pipelines, so that the operation is not easy and the working efficiency is low during use.
Disclosure of utility model
The utility model aims to provide a combined smoke-return prevention check valve so as to solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
A combination smoke-return preventing check valve comprising: the device comprises a base, wherein a valve body pipeline is arranged at the right end of the base, an outer plate is arranged on the valve body pipeline, a connecting pipeline is arranged at the right end of the valve body pipeline, an annular bump is arranged in the valve body pipeline, an air door leaf plate is arranged in the valve body pipeline, and a fixed block is arranged at the right end below the air door leaf plate;
The upper end and the lower end of the right end of the outer plate are symmetrically provided with a placing groove, a sliding rod is arranged in the placing groove, and a connecting plate is arranged above the sliding rod; and
The right-hand member of connecting plate is provided with T type piece, and the upper and lower both ends symmetry fixedly connected with of connecting tube place the piece, place the inside of piece and be provided with the spring.
Preferably, the inside fixedly connected with annular lug of valve body pipeline, the centre of annular lug rotates and is connected with the connection horizontal pole, and the air door leaf is installed to the outer end of connecting the horizontal pole, and both sides all fixedly connected with fixed block about the right-hand member of air door leaf.
Preferably, the outer walls of the upper end and the lower end of the right side of the outer plate are symmetrically provided with placing grooves, the inside of each placing groove is fixedly connected with a gasket, and the upper part of each placing groove is slidably connected with a sliding rod.
Preferably, the outer walls of the upper end and the lower end of the left side of the connecting pipeline are symmetrically and fixedly connected with placing blocks, the upper surface of each placing block is provided with a groove, and the inside of each groove is fixedly connected with a limiting block.
Preferably, a connecting plate is fixedly connected above each sliding rod, a T-shaped block is fixedly connected to the right end of each connecting plate, and a pulling block is fixedly connected to the outer wall of each connecting plate.
Preferably, the lower outer end of each T-shaped block is fixedly connected with a spring, the lower part of each spring is fixedly connected with the upper surface of the limiting block, and the inside of the connecting pipeline is fixedly connected with an annular rubber ring.
Compared with the prior art, the utility model has the beneficial effects that: through being provided with the air door leaf in the inside of valve, can let smog pass through, the pulling piece can drive T type piece to make things convenient for valve pipeline and connecting tube to separate, easy operation is convenient, and danger coefficient is low, and the rate of utilization is high.
Drawings
FIG. 1 is a cross-sectional view of the overall structure of the present utility model;
FIG. 2 is an enlarged view of the structure of area A in FIG. 2 according to the present utility model;
FIG. 3 is a schematic view of a part of the structure of the present utility model.
In the figure: 1. a base; 2. an outer plate; 3. a valve body pipe; 4. an annular bump; 5. connecting the cross bars; 6. a damper blade; 7. a fixed block; 8. a connecting pipe; 9. pulling the block; 10. a connecting plate; 11. a placement groove; 12. a gasket; 13. a slide bar; 14. a T-shaped block; 15. a groove; 16. a spring; 17. a limiting block; 18. placing a block; 19. an annular rubber ring.
Detailed Description
In order to make the objects, technical solutions, and advantages of the present invention more apparent, the embodiments of the present invention will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present invention, are intended to be illustrative only and not limiting of the embodiments of the present invention, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present invention.
Embodiment one:
Referring to fig. 1-3, the present utility model provides a technical solution: a combination smoke-return preventing check valve comprising: the device comprises a base 1, wherein a valve body pipeline 3 is arranged at the right end of the base 1, an outer plate 2 is arranged on the valve body pipeline 3, a connecting pipeline 8 is arranged at the right end of the valve body pipeline 3, an annular lug 4 is arranged in the valve body pipeline 3, an air door leaf plate 6 is arranged in the valve body pipeline 3, and a fixed block 7 is arranged at the right end below the air door leaf plate 6; the upper end and the lower end of the right end of the outer plate 2 are symmetrically provided with a placing groove 11, a sliding rod 13 is arranged in the placing groove 11, and a connecting plate 10 is arranged above the sliding rod 13; the right-hand member of connecting plate 10 is provided with T type piece 14, and the upper and lower both ends symmetry fixedly connected with of connecting tube 8 place the piece 18, place the inside of piece 18 and be provided with spring 16.
Through being provided with air door leaf 6 in the inside of valve body pipeline 3, flue gas promotes air door leaf 6 for air door leaf 6 is promoted, thereby flue gas passes through, and valve body pipeline 3 and connecting tube 8 threaded connection are in the same place, connect closely.
Embodiment two:
Referring to fig. 2, in order to facilitate replacement of the valve body pipe 3, an annular bump 4 is fixedly connected to the inside of the valve body pipe 3, a connecting cross rod 5 is rotatably connected to the middle of the annular bump 4, an air door leaf 6 is mounted at the outer end of the connecting cross rod 5, fixing blocks 7 are fixedly connected to the upper and lower sides of the right end of the air door leaf 6, placing grooves 11 are symmetrically formed in the outer walls of the upper and lower ends of the right side of the outer plate 2, washers 12 are fixedly connected to the inside of each placing groove 11, and sliding rods 13 are slidably connected to the upper side of each placing groove 11.
Through symmetrically offering standing groove 11 on the surface of both ends about the right-hand member of valve body pipeline 3, the inside fixedly connected with packing ring 12 of standing groove 11, slide bar 13 has been placed to packing ring 12 top, the top fixedly connected with connecting plate 10 of slide bar 13, the top fixedly connected with pulling block 9 of connecting plate 10, pulling block 9 drives connecting plate 10 and upwards moves to slide bar 13 is pulled, shifts out in the standing groove 11.
Embodiment III:
Referring to fig. 2, in order to facilitate replacement of the connection pipe 8, the outer walls of the upper and lower ends of the left side of the connection pipe 8 are symmetrically and fixedly connected with placement blocks 18, the upper surface of each placement block 18 is provided with a groove 15, the inside of each groove 15 is fixedly connected with a limiting block 17, the upper side of each sliding rod 13 is fixedly connected with a connection plate 10, the right end of each connection plate 10 is fixedly connected with a T-shaped block 14, the outer wall of each connection plate 10 is fixedly connected with a pulling block 9, the lower outer end of each T-shaped block 14 is fixedly connected with a spring 16, the lower side of each spring 16 is fixedly connected with the upper surface of each limiting block 17, and the inside of the connection pipe 8 is fixedly connected with an annular rubber ring 19.
Through symmetrically seting up recess 15 on the surface of both ends about the left end of connecting tube 8, the inside fixedly connected with stopper 17 of recess 15, the top fixedly connected with spring 16 of stopper 17, the top fixedly connected with T type piece 14 of spring 16, T type piece 14 and connecting plate 10 fixed connection, pulling piece 9, connecting plate 10 upwards moves, drive T type piece 14 upwards moves, spring 16 upwards stretches, stopper 17 and recess 15 fixed connection, stopper 17 plays the limiting displacement, thereby slide bar 13 can be removed from standing groove 11, connecting tube 8 and valve body pipeline 3 can separate.
During actual use, through being provided with air door leaf 6 in the inside of valve body pipeline 3, flue gas promotes air door leaf 6, make air door leaf 6 be promoted, thereby flue gas passes through, valve body pipeline 3 is in the same place with connecting tube 8 threaded connection, connect closely, standing groove 11 has been seted up through the symmetry on the surface of both ends about the right-hand member of valve body pipeline 3, the inside fixedly connected with packing ring 12 of standing groove 11, slide bar 13 has been placed to packing ring 12 top, slide bar 13's top fixedly connected with connecting plate 10, connecting plate 10's top fixedly connected with pulling piece 9, pulling piece 9, drive connecting plate 10 upwards, thereby slide bar 13 is pulled, shift out from standing groove 11, through symmetrically seting up recess 15 on the surface of both ends about connecting tube 8, the inside fixedly connected with stopper 17 of recess 15, the top fixedly connected with spring 16 of stopper 17, the top fixedly connected with T type piece 14 and connecting plate 10, pulling piece 9, connecting plate 10 upwards moves, drive T type piece 14 upwards moves, pull piece 14 upwards, the stopper 17 is connected with stopper 17 in order to remove from the recess 3 through the upper and lower both ends surface symmetry of connecting tube 8, thereby can be removed from the recess 3, and the effect is connected with stopper 17.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A combination smoke-return preventing check valve comprising: base (1), the right-hand member of base (1) is provided with valve body pipeline (3), and the last planking (2) that are provided with of valve body pipeline (3), the right-hand member of valve body pipeline (3) is provided with connecting tube (8), its characterized in that: an annular lug (4) is arranged in the valve body pipeline (3), an air door blade plate (6) is arranged in the valve body pipeline (3), and a fixed block (7) is arranged at the right end below the air door blade plate (6);
The upper end and the lower end of the right end of the outer plate (2) are symmetrically provided with a placing groove (11), a sliding rod (13) is arranged in the placing groove (11), and a connecting plate (10) is arranged above the sliding rod (13); and
The right-hand member of connecting plate (10) is provided with T type piece (14), and the upper and lower both ends symmetry fixedly connected with of connecting tube (8) place piece (18), and the inside of placing piece (18) is provided with spring (16).
2. A combination smoke-return prevention check valve according to claim 1, wherein: the inside fixedly connected with annular lug (4) of valve body pipeline (3), the centre rotation of annular lug (4) is connected with and connects horizontal pole (5), and air door leaf (6) are installed to the outer end of connecting horizontal pole (5), and both sides all fixedly connected with fixed block (7) about the right-hand member of air door leaf (6).
3. A combination smoke-return prevention check valve according to claim 2, wherein: the outer walls of the upper end and the lower end of the right side of the outer plate (2) are symmetrically provided with placing grooves (11), washers (12) are fixedly connected inside each placing groove (11), and sliding rods (13) are slidably connected above each placing groove (11).
4. A combination smoke-return prevention check valve according to claim 3, wherein: the outer walls of the upper end and the lower end of the left side of the connecting pipeline (8) are symmetrically and fixedly connected with placing blocks (18), the upper surface of each placing block (18) is provided with a groove (15), and the inside of each groove (15) is fixedly connected with a limiting block (17).
5. The combination smoke-return prevention check valve of claim 4, wherein: the upper part of each sliding rod (13) is fixedly connected with a connecting plate (10), the right end of each connecting plate (10) is fixedly connected with a T-shaped block (14), and the outer wall of each connecting plate (10) is fixedly connected with a pulling block (9).
6. The combination smoke-return prevention check valve of claim 5, wherein: the lower outer end of each T-shaped block (14) is fixedly connected with a spring (16), the lower part of each spring (16) is fixedly connected with the upper surface of a limiting block (17), and the inside of the connecting pipeline (8) is fixedly connected with an annular rubber ring (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321728029.2U CN221034117U (en) | 2023-07-03 | 2023-07-03 | Combined smoke-return-preventing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321728029.2U CN221034117U (en) | 2023-07-03 | 2023-07-03 | Combined smoke-return-preventing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221034117U true CN221034117U (en) | 2024-05-28 |
Family
ID=91139498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321728029.2U Active CN221034117U (en) | 2023-07-03 | 2023-07-03 | Combined smoke-return-preventing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221034117U (en) |
-
2023
- 2023-07-03 CN CN202321728029.2U patent/CN221034117U/en active Active
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| GR01 | Patent grant |