CN210990255U - Low-speed air leakage valve - Google Patents
Low-speed air leakage valve Download PDFInfo
- Publication number
- CN210990255U CN210990255U CN201921846005.0U CN201921846005U CN210990255U CN 210990255 U CN210990255 U CN 210990255U CN 201921846005 U CN201921846005 U CN 201921846005U CN 210990255 U CN210990255 U CN 210990255U
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- China
- Prior art keywords
- hole
- valve body
- valve
- air leakage
- blind hole
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- 230000000903 blocking effect Effects 0.000 claims abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 16
- 238000009825 accumulation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000003437 trachea Anatomy 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 230000002026 carminative effect Effects 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Check Valves (AREA)
Abstract
A slow air leakage valve aims to solve the problems of air outlet hole blockage and uneven air leakage caused by dust accumulation of the existing slow air leakage valve; the valve comprises a valve body, wherein the valve body is cylindrical, a blind hole is formed in the valve body, an air outlet hole is formed in the plugging end of the blind hole, the axial lead of the air outlet hole is overlapped with the axial lead of the blind hole, and a first taper hole and a second taper hole which are connected with the blind hole are sequentially formed in one end, located in the valve body, of the air outlet hole; the utility model discloses the structure is ingenious, through add the cone angle in gas leakage hole inner for gas leakage hole department is no longer the laying dust, thereby avoids gas leakage valve blocking phenomenon to appear, guarantees the even of its gas leakage, and then guarantees measuring result's accuracy.
Description
Technical Field
The device relates to the technical field of air valves, in particular to a slow air leakage valve.
Background
In the equipment that needs slow gas leakage such as sphygmomanometer, cerebral apoplexy therapeutic instrument, need use a bleeder valve to realize the process of slow pressure release survey and get blood pressure.
The existing relief valve has the following disadvantages:
1. dust accumulation in the space: dust is easily accumulated because of the existence of dead space.
2. Dust accumulation easily blocks: because the dead space is always dusty, if the air temperature is high, the dead space can be caked, thereby blocking the small hole.
3. The long-strip-shaped scraps, dust and the like are discharged and blocked in front of the air holes.
4. Uneven air leakage: when the pressure is high, the air leakage is fast, such as 180mmHg air leakage is fast; the air leakage is slow when the pressure is low, such as 60 mmHg.
5. Combining the above points, the reject ratio caused by blockage in the current production is about two thousand parts.
SUMMERY OF THE UTILITY MODEL
For overcoming the defects of the prior art, the utility model provides a slow air leakage valve, its aim at solves the easy dirt retention of current slow air leakage valve and leads to blocks up the venthole and leak gas inhomogeneous problem.
The technical scheme for solving the technical problem is as follows: the utility model provides a slow air leakage valve, includes the valve body, and the valve body is cylindric, is equipped with the blind hole in the valve body, and the shutoff of blind hole is served and is equipped with the venthole, and the axial lead of venthole coincides with the axial lead of blind hole, and the venthole is located one end and is equipped with first taper hole and the second taper hole of being connected with the blind hole in proper order in the valve body.
The utility model discloses the structure is ingenious, through add the cone angle in gas leakage hole inner for gas leakage hole department is no longer the laying dust, thereby avoids gas leakage valve blocking phenomenon to appear, guarantees the even of its gas leakage, and then guarantees measuring result's accuracy.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a schematic side view of the present invention.
Fig. 3 is a left side view of fig. 2 of the present invention.
Fig. 4 is a side sectional view of the present invention.
Fig. 5 is a partially enlarged schematic view of fig. 4 according to the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As can be known from the drawings 1 to 5, the slow air leakage valve comprises a valve body 1, wherein the valve body 1 is cylindrical, a blind hole 2 is formed in the valve body 1, an air outlet 3 is formed in the plugging end of the blind hole 2, the axial lead of the air outlet 3 coincides with the axial lead of the blind hole 2, and a first taper hole 4 and a second taper hole 5 which are connected with the blind hole 2 are sequentially formed in one end, located in the valve body 1, of the air outlet 3.
For the convenience of use, the valve body 1 be provided with on the surface of one side that is close to the shutoff end and block piece 6, block piece 6 can guarantee to fix the trachea to the position when assembling trachea and exhaust valve, the requirement of equipment has been reached promptly when tracheal terminal surface and the side of blocking piece 6 are inconsistent. Two planes are arranged in two opposite directions on the stop block 6, so that the installation volume of the valve body 1 can be reduced, the space can be saved, and the stop block is conveniently used for products with strict requirements on the space.
In order to facilitate installation, a taper angle 7 is arranged at one end, away from the plugging end, of the valve body 1, so that the valve body 1 can be conveniently installed on an air pipe.
For the convenience of manufacturing, valve body 1 and stop 6 for silica gel, rubber or plastic material preparation, can adopt one shot injection moulding, reduce the preparation degree of difficulty, reduce the rejection rate, and simple structure back equipment also relative simple and convenient, reduce the operation requirement.
The valve body 1 has an outer diameter of 3.0mm and a length of 8 mm.
The inner diameter of the blind hole 2 is 1.5 mm.
The inner diameter of the air outlet 3 is 0.08-0.18mm, and the depth of the air outlet 3 is 0.1 mm.
The angle of the first taper hole 4 is 90 degrees.
The angle of the second taper hole 5 is 40 degrees, and the depth of the second taper hole 5 is 0.07 mm.
When the utility model is used in a concrete way,
directly with the one end and the trachea intercommunication that set up blind hole 2 on the valve body 1, and fix and can use, at carminative in-process, the dust is outwards discharged from blind hole 2, pass through first taper hole 4 and second taper hole 5 in proper order and discharge from venthole 3, the uncovered structure of first taper hole 4 makes the dust get into venthole 3 more easily, also make rectangular dust through circular cone arrangement flight posture, thereby can discharge from venthole 3 perpendicularly, second taper hole 5 plays excessive effect, can enough make the dust discharge from venthole 3, can strengthen the intensity of venthole 3 department again, avoid outside atress to destroy the structure of venthole 3.
Various sizes on the valve body 1 ensure that the air leakage valve works stably, and meanwhile, the air leakage valve and the air pipe are easier to assemble.
Compared with the prior art, the utility model, following beneficial effect has:
1. no dead angle exists, and no dust is accumulated;
2. the discharge of dust is accelerated, and the dust cannot be agglomerated;
3. the conical surface helps to arrange the long-strip-shaped dust into a posture parallel to the air outlet hole 3, so that the dust can be discharged better and faster.
4. The air leakage uniformity is better, and due to the existence of the two sections of conical cavities, when air flows, certain guide and variable resistance can be generated, so that the air flow resistance is large when the air pressure is large, the air pressure is small, the pressure of the air flow is small, the air leakage uniformity is better in a certain procedure, and the linearity is improved.
5. After improvement, the reject ratio caused by blockage during production is reduced to about ten thousand.
Claims (9)
1. The utility model provides a slow air leakage valve, its characterized in that, includes valve body (1), and valve body (1) is cylindric, is equipped with blind hole (2) in valve body (1), and the shutoff of blind hole (2) is served and is equipped with venthole (3), and the axial lead of venthole (3) and the axial lead coincidence of blind hole (2), venthole (3) are located valve body (1) one end and are equipped with first taper hole (4) and second taper hole (5) of being connected with blind hole (2) in proper order.
2. A slow air leakage valve according to claim 1, characterized in that the outer surface of the valve body (1) on the side close to the blocking end is provided with a blocking block (6).
3. A slow air leakage valve according to claim 1, characterized in that the end of the valve body (1) remote from the blocking end is provided with a cone angle (7).
4. The slow air leakage valve according to claim 2, wherein the valve body (1) and the blocking block (6) are made of silica gel, rubber or plastic.
5. A slow air leakage valve according to claim 1, characterized in that the valve body (1) has an outer diameter of 3.0mm and a length of 8 mm.
6. A slow air leakage valve according to claim 1, characterized in that the inner diameter of the blind hole (2) is 1.5 mm.
7. A slow air leakage valve according to claim 1, characterized in that the inner diameter of the air outlet (3) is 0.08-0.18mm, and the depth of the air outlet (3) is 0.1 mm.
8. A slow air leak valve according to claim 1, characterized in that the angle of the first conical hole (4) is 90 °.
9. A slow air leak valve according to claim 1, characterized in that the angle of the second conical hole (5) is 40 ° and the depth of the second conical hole (5) is 0.07 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921846005.0U CN210990255U (en) | 2019-10-30 | 2019-10-30 | Low-speed air leakage valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921846005.0U CN210990255U (en) | 2019-10-30 | 2019-10-30 | Low-speed air leakage valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210990255U true CN210990255U (en) | 2020-07-14 |
Family
ID=71484091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921846005.0U Active CN210990255U (en) | 2019-10-30 | 2019-10-30 | Low-speed air leakage valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210990255U (en) |
-
2019
- 2019-10-30 CN CN201921846005.0U patent/CN210990255U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231020 Address after: 423000 Sanxing Industrial Park, Rucheng Economic Development Zone, Rucheng County, Chenzhou City, Hunan Province Patentee after: Hunan bailukang Biotechnology Co.,Ltd. Address before: Building E201, No. 3 Keji Road, Zhukeng Community, Longtian Street, Pingshan District, Shenzhen City, Guangdong Province, 518118 Patentee before: Shenzhen weihande Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |