CN111238803A - O-shaped ring sealing structure normal-temperature air tightness test device - Google Patents
O-shaped ring sealing structure normal-temperature air tightness test device Download PDFInfo
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- CN111238803A CN111238803A CN202010062971.4A CN202010062971A CN111238803A CN 111238803 A CN111238803 A CN 111238803A CN 202010062971 A CN202010062971 A CN 202010062971A CN 111238803 A CN111238803 A CN 111238803A
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- air outlet
- air
- joint
- shaped ring
- measuring cylinder
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- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 title claims abstract description 25
- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002609 medium Substances 0.000 description 5
- 102000046255 Type III Sodium-Phosphate Cotransporter Proteins Human genes 0.000 description 2
- 108091006286 Type III sodium-phosphate co-transporters Proteins 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/005—Sealing rings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a normal-temperature air tightness test device for an O-shaped ring sealing structure, wherein a product connecting end of an air inlet joint is of an O-shaped ring structure with an internal thread structure, a taper-mouth structure with an external thread structure is arranged inside a pipeline connecting end of the air inlet joint, and an air outlet is formed in the side surface of the middle part of the air inlet joint; one end of the air outlet joint is in threaded connection with the air outlet, the other end of the air outlet joint is provided with a conical opening, and one end of the air outlet pipe is inserted into the conical opening; one end of the compression nut is screwed on the air outlet connector, and the other end of the compression nut is fixed with the air outlet pipe; the mouth end of the measuring cylinder is fixed on the fixing seat, the other end of the air outlet pipe penetrates through the fixing seat and extends into the measuring cylinder, and liquid medium is contained in the measuring cylinder. According to the technical scheme, the air tightness detection device is simple and compact in structure, convenient and quick to use, capable of detecting leakage of products, convenient and quick in test mode and high in reliability and safety, and particularly suitable for air tightness detection of products which are not suitable for being in direct contact with water media and are produced on a large scale.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a normal-temperature air tightness test device for an O-shaped ring sealing structure.
Background
With the rapid development of the valve industry, the variety of valve sealing structures is increasing, wherein the sealing performance is used as a necessary item for valve delivery tests, and the test device for detecting the air tightness is concerned by the valve industry. In the prior art, an air tightness detection device with a simple structure and convenient operation does not exist, and an air tightness test can be completed under the condition of not contacting with a test medium.
Disclosure of Invention
Aiming at least one of the problems, the invention provides a normal-temperature air tightness test device for an O-shaped ring sealing structure, wherein the O-shaped ring is sealed with a product, the test device is simple and compact in structure and convenient and quick to use in the form of the O-shaped ring, the sealing structure with the conical opening can be quickly connected with a ball nut in a pipeline to achieve a good sealing effect, meanwhile, the leakage of the product can be detected, the test mode is convenient and quick, the reliability and the safety are high, and the device is particularly suitable for air tightness detection of products which are not suitable for being directly contacted with a water medium and are produced on a large scale.
In order to achieve the purpose, the invention provides a normal-temperature air tightness test device for an O-shaped ring sealing structure, which comprises: the gas outlet device comprises a gas inlet joint, a gas outlet joint, a compression nut, a gas outlet pipe, a fixed seat and a measuring cylinder; the product connecting end of the air inlet joint is of an O-shaped ring structure, a conical opening structure is arranged inside the pipeline connecting end of the air inlet joint, the O-shaped ring structure is provided with an internal thread structure, the conical opening structure is provided with an external thread structure, the side surface of the middle part of the air inlet joint is provided with an air outlet, and the air outlet is provided with an internal thread; the interior of the air outlet joint is provided with a hollow pipe structure, one end of the air outlet joint is provided with external threads and is in threaded connection with the internal threads of the air outlet, the other end of the air outlet joint is provided with a taper opening, and one end of the air outlet pipe is inserted from the taper opening to be communicated with the air outlet; the compression nut is provided with a taper matched with the taper opening, one end of the compression nut is screwed on the air outlet connector, and the other end of the compression nut is fixed on the air outlet pipe; the mouth end of the measuring cylinder is downwards fixed on the fixing seat, a through hole is formed in the fixing seat, the other end of the air outlet pipe penetrates through the through hole and extends into the measuring cylinder, the air outlet pipe and the through hole are arranged in a sealing mode, and liquid media are contained in the measuring cylinder.
In the above technical solution, preferably, the lower end of the fixing base adopts a cross-shaped groove structure, the through hole passes through the fixing base from inside of the cross-shaped groove, and the air outlet pipe is introduced into the through hole from the cross-shaped groove.
In the above technical solution, preferably, screw holes are uniformly distributed along the periphery of the measuring cylinder at the upper end of the fixing seat, and screws are screwed into the screw holes and are reserved with preset lengths outside the screw holes to fix the measuring cylinder.
In the above technical solution, preferably, the outer thread of the air outlet joint is an NPT thread, and is connected with an NPT thread adapted to the inside of the air outlet of the air inlet joint.
In the above technical solution, preferably, the tapered structure of the air inlet joint is a taper expanding from inside to outside, and an inclination angle of the tapered structure is 37 °.
In the above technical solution, preferably, the air inlet joint and the air outlet joint are made of stainless steel.
In the above technical scheme, preferably, the air outlet pipe is a silicone tube.
Compared with the prior art, the invention has the beneficial effects that: form through O type circle and product and seal, this form makes testing device simple structure compact, and convenient to use, swift adopts the binding off structure of bell mouth can reach good sealed effect with the bulb nut high-speed joint in the pipeline fast, simultaneously, can detect the leakage of product, makes test mode convenient and fast, reliability security height again, is particularly useful for big batch product not suitable and the product gas tightness detection of aqueous medium direct contact.
Drawings
Fig. 1 is a sectional view of a normal-temperature air-tightness test device for an O-ring sealing structure according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an air inlet joint according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an air outlet joint according to an embodiment of the present invention.
In the drawings, the correspondence between each component and the reference numeral is:
1. the gas inlet connector comprises a gas inlet connector 11, a gas outlet connector 2, a gas outlet connector 21, a conical opening 3, a compression nut 4, a fixed seat 41, a through hole 42, a cross groove 42, a gas outlet pipe 5, a measuring cylinder 6, a fixing screw 7, a product connecting end 8 and a pipeline connecting end 9.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention is described in further detail below with reference to the attached drawing figures:
as shown in fig. 1 to 3, the normal temperature air tightness test device for the sealing structure of the O-ring provided by the invention comprises: the gas outlet device comprises a gas inlet connector 1, a gas outlet connector 2, a compression nut 3, a gas outlet pipe 5, a fixed seat 4 and a measuring cylinder 6; the product connecting end 8 of the air inlet joint 1 is of an O-shaped ring structure, the interior of the pipeline connecting end 9 of the air inlet joint 1 is of a cone-mouth-shaped structure, the O-shaped ring structure is provided with an internal thread structure, the cone-mouth-shaped structure is provided with an external thread structure, the side surface of the middle part of the air inlet joint 1 is provided with an air outlet 11, and the air outlet 11 is provided with an internal thread; the interior of the air outlet joint 2 is provided with a hollow pipe structure, one end of the air outlet joint 2 is provided with external threads and is in threaded connection with the internal threads of the air outlet 11, the other end of the air outlet joint is provided with a taper opening 21, and one end of the air outlet pipe 5 is inserted from the taper opening 21 and is communicated with the air outlet 11; the compression nut 3 is provided with a taper matched with the taper opening 21, one end of the compression nut 3 is screwed on the air outlet joint 2, and the other end is fixed with the air outlet pipe 5; the mouth end of the measuring cylinder 6 is downwards fixed on the fixed seat 4, the fixed seat 4 is provided with a through hole 41, the other end of the air outlet pipe 5 penetrates through the through hole 41 and extends into the measuring cylinder 6, the air outlet pipe 5 and the through hole 41 are arranged in a sealing mode, and liquid medium is contained in the measuring cylinder 6.
In this embodiment, specifically, the connection portion of the product is sealed by a double O-ring, the O-ring structure has a good sealing effect, and the product is fixed on the air inlet joint 1 by a threaded structure. The other end of the air inlet joint 1 is internally provided with a taper-mouth structure, and the outside of the air inlet joint is provided with a thread structure which can be quickly connected with a ball joint of a test bed pipeline and can achieve a good sealing effect. The gas outlet 11 is arranged at the contact part of the middle part of the side surface of the gas inlet joint 1 and the gas outlet 11 of the product, residual gas discharged from the product can be discharged through the gas outlet 11, and the other side of the gas outlet 11 is designed with internal thread connection. One end of the air outlet connector 2 is connected with the air outlet 11 of the air inlet connector 1 through external threads, the other end of the air outlet connector is provided with a taper opening 21, the taper opening 21 can enable the air outlet pipe 5 to be tightly sleeved, and the loosening phenomenon cannot occur. One end of the tapered gland nut 3 is fixed at the tapered opening 21 of the air outlet joint 2, and the other end can press one end of the air outlet pipe 5. The fixing seat 4 is provided with a fixing screw 7, and the measuring cylinder 6 is fixed on the fixing seat 4. The other end of the air outlet pipe 5 is fixed in a water tank in the measuring cylinder 6 through the fixing seat 4.
In the above embodiment, preferably, the lower end of the fixing seat 4 adopts a cross-shaped groove structure, so that the silicone rubber tube can be conveniently and quickly installed in the groove, and a weight reduction effect can be achieved. The through hole 41 is formed by the cross-shaped groove 42 and penetrates through the fixed seat 4, and the air outlet pipe 5 is led into the through hole 41 through the cross-shaped groove 42. Preferably, the upper end of fixing base 4 is provided with 4 evenly distributed's screw hole along graduated flask 6 periphery, and set screw 7 screws into the screw hole and reserves preset length outside the screw hole to fixed graduated flask 6 can guarantee graduated flask 6's stability.
In the above embodiment, the outer thread of the outlet connector 2 is preferably NPT1/4 thread, and is connected with the NPT1/4 thread matched with the inner thread of the outlet 11 of the inlet connector 1.
In the above embodiment, preferably, the conical structure of the air inlet joint 1 is a cone expanding from inside to outside, and the inclination angle of the conical structure is 37 ° for quick connection with the test bench pipeline and forming a good sealing form.
In the above embodiment, preferably, the inlet connector 1 and the outlet connector 2 are made of stainless steel, so that the service life of the test device is ensured. Preferably, the middle of the air outlet joint 2 is designed to be a flat structure so as to be convenient to install.
In the above embodiment, preferably, the air outlet pipe 5 is a silicone tube, which is light, flexible, cheap and cost-saving.
According to the O-shaped ring sealing structure normal-temperature air tightness test device provided by the embodiment, in the implementation process, a product is installed at the product connecting end 8 of the air inlet connector 1, the measuring cylinder 6 filled with water is inversely fixed on the fixed seat 4, the silicone tube penetrates through the fixed seat 4 and extends into the measuring cylinder 6, and the fixing screw 7 ensures that the phenomenon of toppling cannot occur in the stability of the position of the measuring cylinder 6. In the test process, the gas tightness of the product can be judged by only introducing gas into the product and observing whether the volume of water in the measuring cylinder 6 changes or not, meanwhile, the contact between the product and a test medium is avoided, and the pollution of the medium to the inside of the product is prevented.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a O type circle seal structure normal atmospheric temperature air-tight test device which characterized in that includes: the gas outlet device comprises a gas inlet joint, a gas outlet joint, a compression nut, a gas outlet pipe, a fixed seat and a measuring cylinder;
the product connecting end of the air inlet joint is of an O-shaped ring structure, a conical opening structure is arranged inside the pipeline connecting end of the air inlet joint, the O-shaped ring structure is provided with an internal thread structure, the conical opening structure is provided with an external thread structure, the side surface of the middle part of the air inlet joint is provided with an air outlet, and the air outlet is provided with an internal thread;
the interior of the air outlet joint is provided with a hollow pipe structure, one end of the air outlet joint is provided with external threads and is in threaded connection with the internal threads of the air outlet, the other end of the air outlet joint is provided with a taper opening, and one end of the air outlet pipe is inserted from the taper opening to be communicated with the air outlet;
the compression nut is provided with a taper matched with the taper opening, one end of the compression nut is screwed on the air outlet connector, and the other end of the compression nut is fixed on the air outlet pipe;
the mouth end of the measuring cylinder is downwards fixed on the fixing seat, a through hole is formed in the fixing seat, the other end of the air outlet pipe penetrates through the through hole and extends into the measuring cylinder, the air outlet pipe and the through hole are arranged in a sealing mode, and liquid media are contained in the measuring cylinder.
2. The normal-temperature air tightness test device for the O-shaped ring sealing structure according to claim 1, wherein a cross-shaped groove structure is adopted at the lower end of the fixing seat, the through hole penetrates through the fixing seat from the inside of the cross-shaped groove, and the air outlet pipe is led into the through hole from the cross-shaped groove.
3. The device for testing the normal-temperature air tightness of the O-shaped ring sealing structure according to claim 1, wherein screw holes are uniformly distributed in the upper end of the fixing seat along the periphery of the measuring cylinder, and screws are screwed into the screw holes and are reserved with preset lengths outside the screw holes so as to fix the measuring cylinder.
4. The device for testing the normal-temperature air tightness of the O-shaped ring sealing structure according to claim 1, wherein the outer threads of the air outlet joint are NPT threads, and the NPT threads matched with the inner threads of the air outlet of the air inlet joint are connected.
5. The normal-temperature air tightness test device for the O-shaped ring sealing structure according to claim 1, wherein the tapered structure of the air inlet joint is tapered from inside to outside, and the inclination angle of the tapered structure is 37 degrees.
6. The device for testing the normal-temperature air tightness of the O-shaped ring sealing structure according to claim 1, wherein the air inlet joint and the air outlet joint are made of stainless steel.
7. The device for testing the normal-temperature air tightness of the O-shaped ring sealing structure according to claim 1, wherein the air outlet pipe is a silicone tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010062971.4A CN111238803B (en) | 2020-01-19 | 2020-01-19 | O-shaped ring sealing structure normal-temperature air tightness test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010062971.4A CN111238803B (en) | 2020-01-19 | 2020-01-19 | O-shaped ring sealing structure normal-temperature air tightness test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111238803A true CN111238803A (en) | 2020-06-05 |
| CN111238803B CN111238803B (en) | 2022-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010062971.4A Active CN111238803B (en) | 2020-01-19 | 2020-01-19 | O-shaped ring sealing structure normal-temperature air tightness test device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1825083A (en) * | 2006-03-27 | 2006-08-30 | 南京化工职业技术学院 | Multi-parameter measurable and controllable high-speed mechanical seal performance test device |
| US20090140006A1 (en) * | 2007-03-09 | 2009-06-04 | Vitantonio Marc L | Beverage dispensing assembly |
| FR2982950A1 (en) * | 2011-11-23 | 2013-05-24 | Diam Bouchage | CELL FOR MEASURING PERMEABILITY OF PLUGS |
| CN103344391A (en) * | 2013-06-28 | 2013-10-09 | 广州南沙珠江啤酒有限公司 | Filling machine wine valve corrugated lining detector and testing method thereof |
| CN103376189A (en) * | 2012-04-28 | 2013-10-30 | 上海云飞工贸发展有限公司 | Barrel weld joint leak detector for compressor |
| CN206905983U (en) * | 2017-05-26 | 2018-01-19 | 中山市优梦自动化设备有限公司 | Pressure reducing valve air tightness testing device |
-
2020
- 2020-01-19 CN CN202010062971.4A patent/CN111238803B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1825083A (en) * | 2006-03-27 | 2006-08-30 | 南京化工职业技术学院 | Multi-parameter measurable and controllable high-speed mechanical seal performance test device |
| US20090140006A1 (en) * | 2007-03-09 | 2009-06-04 | Vitantonio Marc L | Beverage dispensing assembly |
| FR2982950A1 (en) * | 2011-11-23 | 2013-05-24 | Diam Bouchage | CELL FOR MEASURING PERMEABILITY OF PLUGS |
| CN103376189A (en) * | 2012-04-28 | 2013-10-30 | 上海云飞工贸发展有限公司 | Barrel weld joint leak detector for compressor |
| CN103344391A (en) * | 2013-06-28 | 2013-10-09 | 广州南沙珠江啤酒有限公司 | Filling machine wine valve corrugated lining detector and testing method thereof |
| CN206905983U (en) * | 2017-05-26 | 2018-01-19 | 中山市优梦自动化设备有限公司 | Pressure reducing valve air tightness testing device |
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| Publication number | Publication date |
|---|---|
| CN111238803B (en) | 2022-03-29 |
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