CN220850869U - Ventilation air valve for laboratory - Google Patents
Ventilation air valve for laboratory Download PDFInfo
- Publication number
- CN220850869U CN220850869U CN202322826608.7U CN202322826608U CN220850869U CN 220850869 U CN220850869 U CN 220850869U CN 202322826608 U CN202322826608 U CN 202322826608U CN 220850869 U CN220850869 U CN 220850869U
- Authority
- CN
- China
- Prior art keywords
- valve body
- fixedly connected
- check block
- wall
- laboratory
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 32
- 239000000126 substance Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 230000000151 anti-reflux effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model relates to the technical field of ventilation air valves and discloses a ventilation air valve for a laboratory, which comprises a valve body, wherein a first check block is arranged at the upper end of the inner wall of the valve body, a second check block is arranged at the lower end of the inner wall of the valve body, a first fixing piece which is opposite to each other in front and back is fixedly connected to the middle part of the right side of the first check block, a second fixing piece which is opposite to each other in front and back is fixedly connected to the middle part of the right side of the second check block, a connecting shaft is fixedly connected to the middle part of the inner wall of the valve body, the first fixing piece and the second fixing piece are both rotatably connected to the outer side of the connecting shaft, and a clamping spring is arranged at the middle part of the outer side of the connecting shaft. According to the utility model, through the cooperation of the first check block, the second check block, the first fixing piece, the second fixing piece, the connecting shaft, the clamp spring and the limiting rod, the backflow prevention effect on the interior of the valve body is realized, the backflow of internal gas can be effectively prevented, and the service life of the air valve is further prolonged.
Description
Technical Field
The utility model relates to the technical field of ventilation air valves, in particular to a ventilation air valve for a laboratory.
Background
Ventilation is critical in laboratory environments to remove the harmful gases, odors and contaminants generated to ensure laboratory safety and comfort, and ventilation work typically requires the use of ventilation dampers for controlling the flow and direction of air.
The traditional air valve generally does not have the function of preventing gas backflow, and because a large amount of chemical gas is contained in a laboratory environment, the gas backflow easily causes chemical reaction inside the valve, so that corrosion inside the valve is caused, the valve is possibly damaged under serious conditions, the service life of the valve is reduced, the traditional air valve is poor in tightness, the chemical gas is easily leaked, certain potential safety hazards exist, and energy is wasted.
Disclosure of utility model
In order to make up for the defects, the utility model provides a ventilation air valve for a laboratory, which aims to solve the problems that a large amount of chemical gas is contained in the laboratory environment, and the gas backflow easily causes chemical reaction in the valve, so that the interior of the valve is corroded.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a ventilation blast gate for laboratory, includes the valve body, valve body inner wall upper end is provided with first non return piece, valve body inner wall lower extreme is provided with the second non return piece, relative first mounting around first non return piece right side middle part fixedly connected with, relative second mounting around second non return piece right side middle part fixedly connected with, valve body inner wall middle part fixedly connected with connecting axle, first mounting and second mounting all rotate the connection in the connecting axle outside, the connecting axle outside middle part is provided with the jump ring, jump ring both ends are located first non return piece and second non return piece right side respectively, valve body inner wall right side fixedly connected with gag lever post.
As a further description of the above technical solution:
The two first fixing pieces are positioned on the inner sides of the two second fixing pieces, and the first fixing pieces and the second fixing pieces are correspondingly arranged.
As a further description of the above technical solution:
the inner wall of the valve body is provided with an anti-corrosion layer, and the left side of the valve body is fixedly connected with a connecting pipeline.
As a further description of the above technical solution:
The upper end of the connecting pipeline is fixedly connected with an air pump, and the output end of the air pump is fixedly connected with an output pipeline.
As a further description of the above technical solution:
The inner side of the connecting pipeline is provided with a gas transmission pipeline, and the output port of the gas transmission pipeline is fixedly connected with the left end of the inner wall of the valve body.
As a further description of the above technical solution:
The gas transmission pipeline outside is provided with the inflatable seal circle, inflatable seal circle fixed connection is in output pipeline delivery outlet department.
As a further description of the above technical solution:
The right end of the inner wall of the connecting pipeline is provided with a sealing rubber ring, and the sealing rubber ring is arranged at the right end of the outer side of the gas transmission pipeline.
The utility model has the following beneficial effects:
1. According to the utility model, through the cooperation of the first check block, the second check block, the first fixing piece, the second fixing piece, the connecting shaft, the clamp spring and the limiting rod, the backflow prevention effect on the interior of the valve body is realized, the backflow of internal gas can be effectively prevented, the condition that the valve is corroded and damaged due to the fact that the traditional air valve does not have the backflow prevention function is avoided, and the service life of the air valve is further prolonged.
2. According to the utility model, through the cooperation of the connecting pipeline, the air pump, the output pipeline, the inflatable sealing ring and the sealing rubber ring, the sealing effect on the valve body is realized, the phenomenon of gas leakage is effectively prevented, the problem of gas leakage caused by poor sealing performance of the traditional air valve is avoided, and the potential safety hazard is reduced.
Drawings
FIG. 1 is an isometric schematic view of a ventilation damper for a laboratory according to the present utility model;
FIG. 2 is a sectional view showing the internal structure of a connecting pipe of a ventilation valve for laboratory according to the present utility model;
FIG. 3 is a cross-sectional view showing the internal structure of a valve body of a ventilation air valve for laboratory according to the present utility model;
FIG. 4 is an enlarged view of FIG. 3 at A;
fig. 5 is a schematic diagram showing the connection relationship of check blocks of a ventilation air valve for a laboratory according to the present utility model.
Legend description:
1. A valve body; 2. a connecting pipe; 3. an air pump; 4. an output pipe; 5. an inflatable sealing ring; 6. a gas line; 7. sealing the rubber ring; 8. an anti-corrosion layer; 9. a first check block; 10. a second check block; 11. a first fixing member; 12. a second fixing member; 13. a connecting shaft; 14. clamping springs; 15. and a limit rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, one embodiment provided by the present utility model is: a ventilation air valve for laboratory, including valve body 1, valve body 1 inner wall upper end is provided with first non return piece 9, valve body 1 inner wall lower extreme is provided with second non return piece 10, first non return piece 9 and second non return piece 10 are corresponding the setting, first mounting 11 relative around first non return piece 9 right side middle part fixedly connected with, first non return piece 9 plays fixed bolster to first mounting 11, second mounting 12 relative around second non return piece 10 right side middle part fixedly connected with, second non return piece 10 plays fixed bolster to second mounting 12, valve body 1 inner wall middle part fixedly connected with connecting axle 13, valve body 1 plays fixed bolster to connecting axle 13, further promote the stability of connecting axle 13, first mounting 11 and second mounting 12 are all rotated and are connected in the connecting axle 13 outside, connecting axle 13 runs through first mounting 11 and second mounting 12, and first mounting 11 and second mounting 12 accessible connecting axle 13 carry out relative rotation, connecting axle 13 outside is provided with jump ring 14, it is that the jump ring 14 is for preventing that first 13 from deviating from the side of first non return piece 14 and the first non return piece 10 and the limit stop lever 10 is located at the opposite ends of first non return piece 15, and the limit stop lever 15 is reached in order to prevent that the limit stop lever 10 from having the limit stop lever 15 to take place at the opposite ends to the first non return piece 1, the limit stop lever 15 is reached in order to prevent that the two ends of the first non return piece 1 from having the limit stop lever 10 from having the limit stop lever 15 to be connected with the second non return piece 9, and the second non return piece 15 is too high-stop lever 15.
The two first fixing pieces 11 are located inside the two second fixing pieces 12, and the first fixing pieces 11 and the second fixing pieces 12 are correspondingly arranged.
The inner wall of the valve body 1 is provided with an anti-corrosion layer 8 for further improving the corrosion resistance of the valve and further prolonging the service life of the valve, the left side of the valve body 1 is fixedly connected with a connecting pipeline 2, and the valve body 1 plays a fixed supporting role on the connecting pipeline 2.
The upper end fixedly connected with air pump 3 of connecting tube 2 is in order to further promote the stability of air pump 3, prevents that it from appearing the skew condition, and air pump 3 output fixedly connected with output pipeline 4 can carry the gas that air pump 3 produced through output pipeline 4.
The inside gas transmission pipeline 6 that is provided with of connecting pipeline 2, gas transmission pipeline 6 delivery outlet fixed connection is in valve body 1 inner wall left end, and inside exhaust gas in the laboratory accessible gas transmission pipeline 6 enters into valve body 1 inside.
The gas transmission pipeline 6 outside is provided with inflatable sealing ring 5, and inflatable sealing ring 5 fixed connection is in output pipeline 4 delivery outlet department, carries air pump 3 production gas through output pipeline 4, and then inflates inflatable sealing ring 5, makes its inflation, and then seals the inside connecting tube 2.
The right-hand member of connecting tube 2 inner wall is provided with sealing rubber circle 7, is in order to further promote the inside sealing performance of connecting tube 2, and sealing rubber circle 7 sets up at the outside right-hand member of gas transmission tube 6, prevents the condition that the gas appears revealing.
Working principle: when ventilation is needed in the laboratory, the air pump 3 inflates the inflatable sealing ring 5 through the output pipeline 4 to expand the inflatable sealing ring, and further seals the inside of the connecting pipe 2 to prevent gas leakage, and simultaneously chemical gas in the laboratory enters the inside of the valve body 1 through the gas transmission pipe 6, meanwhile, the sealing rubber ring 7 is arranged on the outer side of the gas transmission pipeline 6, so that the sealing performance of the valve is further improved, the problem of gas leakage caused by poor sealing performance of the traditional air valve is avoided, the potential safety hazard is reduced, and after the gas enters the valve body 1, the first check block 9 and the second check block 10 are opened by the impact force to be rotated outside the connecting shaft 13 by the first fixing member 11 and the second fixing member 12, respectively, and when the first check block 9 and the second check block 10 are rotated, the two ends of the snap spring 14 are extruded to shrink, the first check block 9 and the second check block 10 are limited by the limiting rod 15, the phenomenon of excessive displacement of the first check block 9 and the second check block 10 is prevented, gas is discharged after flushing the first check block 9 and the second check block 10, after the discharge is finished, the clamp spring 14 resets through self elasticity and drives the first check block 9 and the second check block 10 at the two ends to reset so as to be clamped on the inner wall of the valve body 1 again, thereby realizing the anti-reflux effect on the interior of the valve body 1, effectively preventing the reflux of the internal gas, avoiding the condition of rust and damage of the valve caused by the lack of the anti-reflux function of the traditional air valve, further prolonging the service life of the air valve, meanwhile, the inner wall of the valve body 1 is provided with the anti-corrosion layer 8, so that the corrosion resistance of the air valve can be improved to a certain extent through the anti-corrosion layer 8, and the practicability of the valve is further improved.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. A ventilation air valve for laboratory, comprising a valve body (1), characterized in that: the novel valve is characterized in that a first check block (9) is arranged at the upper end of the inner wall of the valve body (1), a second check block (10) is arranged at the lower end of the inner wall of the valve body (1), a first fixing piece (11) which is opposite to each other in the front and back is fixedly connected to the middle of the right side of the first check block (9), a second fixing piece (12) which is opposite to each other in the front and back is fixedly connected to the middle of the right side of the second check block (10), a connecting shaft (13) is fixedly connected to the middle of the inner wall of the valve body (1), the first fixing piece (11) and the second fixing piece (12) are all rotationally connected to the outer side of the connecting shaft (13), a clamp spring (14) is arranged at the middle of the outer side of the connecting shaft (13), and two ends of the clamp spring (14) are respectively positioned on the right sides of the first check block (9) and the second check block (10), and a limiting rod (15) is fixedly connected to the right side of the inner wall of the valve body (1).
2. A ventilation damper for a laboratory as claimed in claim 1, wherein: the two first fixing pieces (11) are positioned on the inner sides of the two second fixing pieces (12), and the first fixing pieces (11) and the second fixing pieces (12) are correspondingly arranged.
3. A ventilation damper for a laboratory as claimed in claim 1, wherein: the anti-corrosion valve is characterized in that an anti-corrosion layer (8) is arranged on the inner wall of the valve body (1), and a connecting pipeline (2) is fixedly connected to the left side of the valve body (1).
4. A ventilation damper for a laboratory according to claim 3, wherein: the upper end of the connecting pipeline (2) is fixedly connected with an air pump (3), and the output end of the air pump (3) is fixedly connected with an output pipeline (4).
5. A ventilation damper for a laboratory according to claim 3, wherein: the inner side of the connecting pipeline (2) is provided with a gas pipeline (6), and an output port of the gas pipeline (6) is fixedly connected with the left end of the inner wall of the valve body (1).
6. A ventilation damper for a laboratory as claimed in claim 5, wherein: the gas transmission pipeline (6) outside is provided with inflatable sealing ring (5), inflatable sealing ring (5) fixed connection is in output pipeline (4) delivery outlet department.
7. A ventilation damper for a laboratory according to claim 3, wherein: the right end of the inner wall of the connecting pipeline (2) is provided with a sealing rubber ring (7), and the sealing rubber ring (7) is arranged at the right end of the outer side of the gas pipeline (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322826608.7U CN220850869U (en) | 2023-10-20 | 2023-10-20 | Ventilation air valve for laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322826608.7U CN220850869U (en) | 2023-10-20 | 2023-10-20 | Ventilation air valve for laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220850869U true CN220850869U (en) | 2024-04-26 |
Family
ID=90744501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322826608.7U Active CN220850869U (en) | 2023-10-20 | 2023-10-20 | Ventilation air valve for laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220850869U (en) |
-
2023
- 2023-10-20 CN CN202322826608.7U patent/CN220850869U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |