CN216200701U - Miniature gas flow distributor - Google Patents
Miniature gas flow distributor Download PDFInfo
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- CN216200701U CN216200701U CN202122443314.7U CN202122443314U CN216200701U CN 216200701 U CN216200701 U CN 216200701U CN 202122443314 U CN202122443314 U CN 202122443314U CN 216200701 U CN216200701 U CN 216200701U
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Abstract
The utility model relates to a micro gas flow distributor, which comprises a supporting part and a flow dividing part, wherein the supporting part comprises a valve body and a valve cover, the valve body is connected with the valve cover, one side of the valve body is provided with a gas inlet, the other side of the valve body is provided with a gas outlet, and the position of the gas outlet is higher than that of the gas inlet; the flow dividing part comprises a gas dividing sheet and a ventilation wheel, the gas dividing sheet is arranged in the valve body, one side of the gas dividing sheet is provided with a gas dividing blind hole, the bottom of the gas dividing blind hole is provided with a limited circulation hole, and the diameter of the limited circulation hole is far smaller than that of the gas dividing blind hole; the ventilation wheel comprises a wheel shaft and a wheel disc, the wheel shaft is arranged in the valve cover in a penetrating mode, a sealing ring matched with the valve cover is sleeved on the wheel shaft, the wheel disc is attached to one side of the current-limiting through hole of the air distribution piece, and the wheel disc is provided with a ventilation hole communicated with the current-limiting through hole through rotation. The flow change of the air source is realized by controlling the number of the phase through holes between the air exchanging wheel and the air distributing sheet, and the air flow and the flow speed of the air source are reduced; the utility model has simple structure, high reliability, cost saving and obvious throttling effect.
Description
Technical Field
The utility model relates to the technical field of flow control valves, in particular to a miniature gas flow distributor.
Background
At present, the market has multiple modes for controlling and adjusting the gas flow, and the product types are also multiple, such as a switch valve, an adjusting valve, a proportional valve and the like.
The existing gas flow distributor is mostly adapted to large-flow equipment, and generally has larger volume, complex structure and lower controllable precision in order to ensure the tightness of the distributor. In some special use scenarios, such as low pressure and micro-flow air source dispensing, the product is not fully adaptable and does not meet the requirements.
Therefore, in order to solve the above problems, a flow distributor with simple structure, small volume and high precision needs to be designed.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the utility model is to overcome the defects that the gas flow distributor in the prior art has a complex structure and low precision and cannot adapt to the distribution of micro-flow gas.
In order to solve the technical problems, the utility model provides a micro gas flow distributor which comprises a supporting part and a flow dividing part, wherein the supporting part comprises a valve body and a valve cover, the valve body is connected with the valve cover, one side of the valve body is provided with a gas inlet, the other side of the valve body is provided with a gas outlet, and the position of the gas outlet is higher than that of the gas inlet;
the flow dividing part comprises a gas dividing sheet and a ventilation wheel, the gas dividing sheet is arranged in the valve body, a gas dividing blind hole is formed in one side of the gas dividing sheet, a limited through hole is formed in the bottom of the gas dividing blind hole, and the diameter of the limited through hole is smaller than that of the gas dividing blind hole; the ventilation wheel comprises a wheel shaft and a wheel disc, the wheel shaft is arranged in a valve cover in a penetrating mode, a sealing ring matched with the valve cover is sleeved on the wheel shaft, the wheel disc is attached to one side of the flow limiting through hole of the air distributing piece, and an air hole communicated with the flow limiting through hole through rotation is formed in the wheel disc.
In one embodiment of the utility model, a placing groove for placing the sealing ring is arranged at the position where the valve cover is matched with the wheel shaft.
In one embodiment of the present invention, the supporting portion further comprises a knob, and the knob is sleeved on the top of the wheel shaft.
In one embodiment of the utility model, a spring is arranged between the valve cover and the air exchange wheel.
In one embodiment of the utility model, the air distribution piece is connected with the valve body through a sealing glue.
In one embodiment of the utility model, the wheel disc is provided with a lower groove for placing the spring.
In one embodiment of the utility model, an upper groove for placing the spring is arranged on one side of the valve cover connected with the valve body.
In one embodiment of the utility model, the valve cover is detachably connected with the valve body.
In one embodiment of the utility model, the material of the gas distribution sheet is ceramic or polytetrafluoroethylene.
In one embodiment of the utility model, the flow limiting through hole is arranged at the edge position of the air distribution blind hole.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
according to the micro gas flow distributor, after gas enters from the gas inlet, the gas firstly passes through the gas distribution sheet to be distributed, the special structure of the gas distribution sheet can limit the flow of the gas of a gas source, and the distributed gas can be changed from large flow into small flow; then adjust the angle of gas exchange wheel through the knob, the gaseous after the intercommunication current-limiting, different angles correspond different gas flows, and gaseous is gone out from the gas outlet at last. The utility model can change the large-flow air source into small flow through a simple mechanical structure, has high flow control precision and obvious effect.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic cross-sectional view of the structure of the present invention;
FIG. 2 is an axial side view of the part of the present invention;
FIG. 3 is a plan view of a part of the present invention;
the specification reference numbers indicate: 1. a knob; 2. a valve cover; 3. a valve body; 4. a gas exchange wheel; 5. a seal ring; 6. a spring; 7. a gas distribution sheet; 71. a current limiting via; 72. and air distribution blind holes.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1, the structural section of the present invention includes a support portion and a flow dividing portion, the support portion includes a valve body 3 and a valve cover 2, the valve body 3 is connected with the valve cover 2, one side of the valve body 3 is provided with an air inlet, the other side is provided with an air outlet, and the position of the air outlet is higher than the position of the air inlet; the flow dividing part comprises a gas dividing sheet 7 and a ventilation wheel 4, the gas dividing sheet 7 is arranged in the valve body 3, as shown in fig. 2, a gas dividing blind hole 72 is formed in one side of the gas dividing sheet 7, a limited flow through hole 71 is formed in the bottom of the gas dividing blind hole 72, and the diameter of the limited flow through hole 71 is smaller than that of the gas dividing blind hole 72; the air exchanging wheel 4 comprises a wheel shaft and a wheel disc, the wheel shaft is arranged in the valve cover 2 in a penetrating mode, a sealing ring 5 matched with the valve cover 2 is sleeved on the wheel shaft, the wheel disc is attached to one side of a current-limiting through hole 71 of the air distributing piece 7, and an air hole communicated with the current-limiting through hole 71 through rotation is formed in the wheel disc.
The utility model is used for instruments such as an oxygen economizer and the like, and the gas source enters from the gas inlet, and the gas is divided and then limited by the flow dividing part, thereby being adaptive to a micro-flow gas source. Specifically, the air distributing sheet 7 firstly enables an air source to enter the air distributing blind hole 72 and then enters the flow limiting through hole 71, so that the air source is divided and limited; preferably, the diameter of the flow limiting through hole 71 is far smaller than that of the gas distribution blind hole 72, so that the gas passing through the gas distribution sheet 7 can be ensured to rapidly reduce the flow speed and flow rate; meanwhile, the position of the gas exchanging wheel 4 is adjusted, when the gas exchanging wheel is turned to the position corresponding to the flow limiting through hole 71, the gas outlet hole is communicated to output gas, the sealing ring 5 can ensure that the gas leaks from the joint of the gas exchanging wheel and the valve cover 2 when passing through the top of the valve body 3, and the gas tightness of the whole flow divider is ensured.
Further, valve gap 2 with the shaft cooperation department is provided with and is used for placing the standing groove of sealing washer 5, and is specific, and sealing washer 5 sets up between valve gap 2 and shaft, prevents that gas from revealing from valve gap 2 top.
Further, the supporting part also comprises a knob 1, and the knob 1 is sleeved on the top of the wheel shaft; specifically, the knob 1 is connected with the gas exchange wheel 4 to adjust the number of the communicated flow limiting through holes 71, and different gears correspond to different flow rates.
Further, a spring 6 is arranged between the valve cover 2 and the air exchange wheel 4, an upper groove for placing the spring 6 is formed in one side, connected with the valve body 3, of the valve cover 2, a lower groove for placing the spring 6 is formed in the wheel disc, the tension force of the spring 6 acts between the valve cover 2 and the air exchange wheel 4, the sealing performance of the flow divider can be improved, and the position of the spring 6 is limited by the upper groove and the lower groove.
Further, the flow limiting through hole 71 is arranged at the edge of the air distribution blind hole 72, specifically, the axes of the flow limiting through hole 71 and the air distribution blind hole 72 are not on the same straight line, so that the air flow buffering effect can be achieved, and the flow speed of the air flow can be limited to a great extent.
Furthermore, the gas distribution sheet 7 is connected with the valve body 3 through a sealant, so that the position of the gas distribution sheet 7 can be fixed, and the sealing performance of the connection part of the gas distribution sheet 7 and the side edge of the valve body 3 is ensured.
Further, valve gap 2 with detachable the connection between the valve body 3 makes things convenient for the installation and the maintenance of shunt, and is preferred, passes through bolted connection between valve gap 2 and the valve body 3.
Further, the material of the air distribution sheet 7 is ceramic or polytetrafluoroethylene, the knob 1 drives the air exchange wheel 4 to rub against the air distribution sheet 7, and preferably, the ceramic and the polytetrafluoroethylene have the characteristics of corrosion resistance and wear resistance, and the friction coefficient is also low.
In conclusion, the flow divider is designed to be similar to a mode of controlling the size of air flow by a valve, the flow dividing part is arranged in the valve body 3, the special process of the air dividing sheet 7 is adopted, the air source divides the air flow into strands from the air inlet through the air dividing blind hole 72, the flow rate of the air flow is reduced through the flow limiting hole 71, the control knob 1 drives the air exchanging wheel 4 and the air dividing sheet 7 to rotate in a friction mode, the air exchanging wheel 4 is communicated with the air holes, the air flows out from the air outlet, the air source flows from the air inlet to the air outlet, the flow rate and the flow rate of the air can be greatly reduced, and the effect is remarkable. The air tightness of the whole flow divider is ensured between the valve cover 2 and the air dividing wheel through a sealing ring 5. The utility model has simple structure, the aperture and the number of the current-limiting through holes 71 of the gas-distributing plate 7 can be changed at will, only one process of processing the current-limiting through holes 71 of the gas-distributing plate 7 needs to be changed, and the utility model is matched with a relevant controller to design, thereby conveniently realizing different product requirements; and the sealing process is simple, the sealing effect is good, and the cost is saved.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.
Claims (10)
1. A micro gas flow distributor, comprising: comprises a supporting part and a shunt part;
the supporting part comprises a valve body and a valve cover, the valve body is connected with the valve cover, one side of the valve body is provided with an air inlet, the other side of the valve body is provided with an air outlet, and the position of the air outlet is higher than that of the air inlet;
the flow dividing part comprises a gas dividing sheet and a ventilation wheel, the gas dividing sheet is arranged in the valve body, a gas dividing blind hole is formed in one side of the gas dividing sheet, a limited through hole is formed in the bottom of the gas dividing blind hole, and the diameter of the limited through hole is smaller than that of the gas dividing blind hole; the ventilation wheel comprises a wheel shaft and a wheel disc, the wheel shaft is arranged in a valve cover in a penetrating mode, a sealing ring matched with the valve cover is sleeved on the wheel shaft, the wheel disc is attached to one side of the flow limiting through hole of the air distributing piece, and an air hole communicated with the flow limiting through hole through rotation is formed in the wheel disc.
2. A flow distributor as claimed in claim 1, wherein: the valve cover and the wheel shaft are matched, and a placing groove for placing the sealing ring is formed in the position where the valve cover and the wheel shaft are matched.
3. A flow distributor as claimed in claim 1, wherein: the supporting part further comprises a knob, and the knob is sleeved on the top of the wheel shaft.
4. A flow distributor as claimed in claim 1, wherein: and a spring is arranged between the valve cover and the air exchange wheel.
5. A flow distributor as claimed in claim 4, wherein: and the wheel disc is provided with a lower groove for placing the spring.
6. A flow distributor as claimed in claim 4, wherein: one side of the valve cover connected with the valve body is provided with an upper groove for placing the spring.
7. A flow distributor as claimed in claim 1, wherein: the air distributing sheet is connected with the valve body through a sealant.
8. A flow distributor as claimed in claim 1, wherein: the valve cover is detachably connected with the valve body.
9. A flow distributor as claimed in claim 1, wherein: the gas distribution sheet is made of ceramic or polytetrafluoroethylene.
10. A flow distributor as claimed in claim 1, wherein: the flow limiting through hole is arranged at the edge of the air distribution blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122443314.7U CN216200701U (en) | 2021-10-11 | 2021-10-11 | Miniature gas flow distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122443314.7U CN216200701U (en) | 2021-10-11 | 2021-10-11 | Miniature gas flow distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216200701U true CN216200701U (en) | 2022-04-05 |
Family
ID=80863488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122443314.7U Active CN216200701U (en) | 2021-10-11 | 2021-10-11 | Miniature gas flow distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216200701U (en) |
-
2021
- 2021-10-11 CN CN202122443314.7U patent/CN216200701U/en active Active
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