CN110672272A - Tightness water testing device - Google Patents
Tightness water testing device Download PDFInfo
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- CN110672272A CN110672272A CN201910968659.9A CN201910968659A CN110672272A CN 110672272 A CN110672272 A CN 110672272A CN 201910968659 A CN201910968659 A CN 201910968659A CN 110672272 A CN110672272 A CN 110672272A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 238000012360 testing method Methods 0.000 title claims abstract description 54
- 238000005086 pumping Methods 0.000 claims abstract description 11
- 230000003068 static effect Effects 0.000 claims description 2
- 230000003028 elevating effect Effects 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a tightness water testing device which comprises a testing water tank, a water supply part, a water pumping part and an inflating part, wherein the water supply part supplies water into the testing water tank and submerges a workpiece to be tested, the water pumping part pumps out water in the testing water tank and feeds back the water to the water supply part, and the inflating part inflates the workpiece to be tested in the testing water tank. This device is supplementary to be intake through the malleation, and the negative pressure is drawn water, does not have elevating system to realize that same platform places the observation. High efficiency and easy operation.
Description
Technical Field
The invention relates to the field of air tightness detection equipment, in particular to a tightness water testing device.
Background
For some workpieces needing air tightness tests, such as cylinders, bathroom products and the like, the common method is to seal the workpieces, put the workpieces into water, inflate the workpieces and check whether air leakage occurs or not; this approach has the following drawbacks: (1) the whole fixed sealing tool needs to be sunk into the water tank, so that the mechanism is large, sinking is not stable, and the accessories are easy to damage, so that the service cycle is short. (2) The sinking and rising speed of the product cannot be too fast, otherwise the water in the water tank is easy to spill. (3) The height of the placing platform is not consistent with that of the observation position, and the bubble is not easy to observe.
In the documents of chinese patent CN 107884134A, CN 110095234 a, etc., the conventional air tightness detection method is adopted, and the solutions are all to improve the detection efficiency on the basis of the conventional method, such as using a robot to accelerate the lifting speed of the workpiece, but none of the above-mentioned drawbacks is solved.
Disclosure of Invention
In view of this, it is necessary to provide a water testing device with simple structure and convenient use.
In order to solve the technical problems, the technical scheme of the invention is as follows: the water supply part is used for inputting the water quantity of a workpiece to be tested into the test water tank, the water pumping part is used for pumping out the water in the test water tank and sending the water back to the water supply part, and the inflating part is used for inflating the workpiece to be tested in the test water tank, wherein the workpiece to be tested is static relative to the test water tank.
Furthermore, the water supply part and the water pumping part are jointly arranged on a water storage tank, the bottom of the water storage tank is connected with the bottom of the test water tank through a first pipeline, a first valve is arranged on the first pipeline, the top of the water storage tank is connected with a vacuum pump through a second pipeline, and the top of the water storage tank is connected with the air charging part through a third pipeline.
Furthermore, a drain pipe is arranged on the first pipeline between the water storage tank and the first valve, and a sixth valve is arranged on the drain pipe.
Furthermore, the inflation part inflates air into the workpiece to be tested through a fourth pipeline.
Furthermore, a fourth valve is arranged on the fourth pipeline.
Furthermore, the device also comprises a clamping part for mounting and fixing the workpiece to be tested.
Furthermore, the clamping part comprises a mounting seat arranged at the bottom of the test water tank and an air cylinder for pressing a workpiece to be tested on the mounting seat.
Further, the cylinder is connected with the charging portion through a fifth pipeline.
Furthermore, a fifth valve is arranged on the fifth pipeline.
Further, the inflation part is an air compressor.
Compared with the prior art, the invention has the following beneficial effects:
1. the work piece that awaits measuring is motionless places in the test water tank, realizes detecting the gas tightness of work piece through the change of liquid level in the water tank, no longer need the lift work piece, can not cause the water fluctuation in the water tank big for water in the water tank does not spill, is favorable to observing the gas tightness condition of work piece.
2. The water supply part and the water pumping part are integrated, positive pressure air is applied to the water storage tank to feed water in the water storage tank into the test water tank through the water storage tank, the water storage tank is vacuumized to form negative pressure to suck the water in the test water tank back to the water storage tank, quick water supply and water pumping can be realized, the efficiency is high, and the occupied space is small.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a water storage tank in an embodiment of the invention.
Fig. 3 is a schematic diagram of an embodiment of the present invention.
In the figure: 1-a frame, 11-a control button, 2-a water storage tank, 21-an air inlet and outlet port, 22-a first pipeline, 23-a first valve, 24-a drain pipe, 25-a sixth valve, 3-a test water tank, 4-a second pipeline, 41-a vacuum pump, 42-a second valve, 5-a third pipeline, 51-a third valve, 52-a precision pressure regulating valve, 6-a fourth pipeline, 61-a fourth valve, 7-a fifth pipeline, 71-a fifth valve, 72-a cylinder, 8-an air compressor, 81-an air source processor and 9-a workpiece.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1, a water test device for tightness comprises a frame 1, wherein a test water tank 3, a water storage tank 2 and an air compressor 8 are arranged on the frame 1, a mounting seat (not shown in the figure) for placing a workpiece 9 is arranged at the bottom in the test water tank 3, and an air cylinder 72 for pressing the workpiece on the mounting seat is arranged outside the test water tank 3.
In this embodiment, an air source processor 81 is connected to an outlet of the air compressor 8, and compressed air output by the air compressor 8 is processed and then delivered to other components.
As shown in fig. 2, in this embodiment, the bottom of the water storage tank 2 is connected to the bottom of the test water tank 3 through a first pipe 21, a first valve 23 is disposed on the first pipe 22, a drain pipe 24 is disposed on the first pipe 22 between the water storage tank 2 and the first valve 23, and a sixth valve 25 is disposed on the drain pipe 24; the top of the water storage tank 2 is provided with an air inlet/outlet port 21, the air inlet/outlet port 21 is further connected with a vacuum pump 41 through a second pipeline 4, the air inlet/outlet port 21 is connected with the air source processor 81 through a third pipeline 5, the second pipeline 4 is provided with a second valve 42, the third pipeline 5 is provided with a third valve 51, and the third pipeline 5 between the third valve 51 and the air source processor 81 is further provided with a precision pressure regulating valve 52.
In this embodiment, the air source processor 81 inflates air into the workpiece 9 to be tested through a fourth pipeline 6, and the fourth pipeline 6 is provided with a fourth valve 61.
In this embodiment, the cylinder 72 is connected to the air source processor 81 through a fifth pipeline 7, and the fifth pipeline 7 is provided with a fifth valve 71.
In this embodiment, the first valve 23 is an electric butterfly valve, and the second to fifth valves are all electromagnetic valves, wherein the fifth valve 71 is a five-port two-position electromagnetic valve, and the second, third, and fourth valves are two-port two-position electromagnetic valves. The sixth valve 25 is a manual ball valve.
In this embodiment, after a period of use, the sixth valve 25 (i.e., the manual ball valve) is opened to drain the water in the water storage tank 2 through the drain pipe 24.
In this embodiment, the frame 1 is further provided with a control button 11 for controlling the air compressor, the vacuum pump, the cylinder and the corresponding valves to open and close.
As shown in FIG. 3, in use, the manual ball valve 25 is in a normally closed state; placing a workpiece 9 to be tested on the mounting seat, controlling the cylinder 72 to be opened, closing the first to fourth valves, opening the fifth valve 71, supplying air to the cylinder 72 through the fifth pipeline 7 by the air compressor 8 through the air source processor 81, and driving a cylinder piston rod to descend to press the workpiece 9 to be tested; controlling the fourth valve 61 to be opened, controlling the first valve, the second valve and the third valve to be closed, and enabling the air compressor to supply air to the workpiece to be tested through the fourth pipeline through the air source processor; controlling the first valve, the third valve and the fourth valve to be opened, closing the second valve 42, supplying air into the water storage tank 2 through the third pipeline 5 by the air compressor through the air source processor, pressing water in the water storage tank 2 into the test water tank 3 under the dual effects of self weight and positive pressure, and closing the first valve and the third valve when the workpiece to be tested is submerged in water; after the airtightness detection of the workpiece to be tested is finished, the vacuum pump 41 is controlled to be started, the third valve and the fourth valve are closed, the first valve and the second valve are opened, negative pressure is formed above the water storage tank 2, and water in the test water tank 3 is sucked back into the water storage tank 2; when the liquid level in the test water tank 3 is lower than the bottom surface of the workpiece to be tested, the vacuum pump, the first valve, the second valve and the third valve are closed, the fifth valve is switched to the other gas transmission channel to enable the piston rod of the cylinder to ascend, then all the valves and all the equipment are closed, the workpiece is taken down, and the next workpiece to be tested is subjected to the steps.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a leakproofness tries water testing arrangement which characterized in that: the device comprises a test water tank, a water supply part, a water pumping part and an inflating part, wherein the water supply part is used for inputting water which submerges a workpiece to be tested into the test water tank, the water pumping part is used for pumping water in the test water tank and sending the water back to the water supply part, the inflating part is used for inflating the workpiece to be tested in the test water tank, and the workpiece to be tested is static relative to the test water tank.
2. The sealability water test testing device of claim 1, characterized in that: the water supply part and the water pumping part are jointly arranged on a water storage tank, the bottom of the water storage tank is connected with the bottom of the test water tank through a first pipeline, a first valve is arranged on the first pipeline, the top of the water storage tank is connected with a vacuum pump through a second pipeline, and the top of the water storage tank is connected with the air charging part through a third pipeline.
3. The sealability water test testing device of claim 2, characterized in that: and a drain pipe is arranged on the first pipeline between the water storage tank and the first valve, and a sixth valve is arranged on the drain pipe.
4. The sealability water test testing device of claim 1, characterized in that: the inflation part inflates air into the workpiece to be tested through a fourth pipeline.
5. The sealability water test testing device of claim 4, wherein: and a fourth valve is arranged on the fourth pipeline.
6. The sealability water test testing device of claim 1, characterized in that: the test fixture also comprises a clamping part used for installing and fixing the workpiece to be tested.
7. The sealability water test testing device of claim 6, wherein: the clamping part comprises a mounting seat arranged at the bottom of the test water tank and an air cylinder for pressing a workpiece to be tested on the mounting seat.
8. The sealability water test testing device of claim 7, wherein: the cylinder is connected with the gas charging part through a fifth pipeline.
9. The sealability water test testing device of claim 8, wherein: and a fifth valve is arranged on the fifth pipeline.
10. The sealability water test apparatus according to any one of claims 1 to 9, characterized in that: the inflation part is an air compressor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921378191 | 2019-08-23 | ||
| CN201921378191X | 2019-08-23 |
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| Publication Number | Publication Date |
|---|---|
| CN110672272A true CN110672272A (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910968659.9A Pending CN110672272A (en) | 2019-08-23 | 2019-10-12 | Tightness water testing device |
| CN201921708800.3U Active CN210464805U (en) | 2019-08-23 | 2019-10-12 | Tightness water testing device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921708800.3U Active CN210464805U (en) | 2019-08-23 | 2019-10-12 | Tightness water testing device |
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| CN (2) | CN110672272A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345165A (en) * | 2020-11-13 | 2021-02-09 | 四川泛华航空仪表电器有限公司 | Tightness detection device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672272A (en) * | 2019-08-23 | 2020-01-10 | 厦门俞成自动化科技有限公司 | Tightness water testing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004017A (en) * | 2010-10-08 | 2011-04-06 | 天津市百顺丰金属制品厂 | Conveniently-controlled multi-functional steel bucket detecting machine |
| CN102798504A (en) * | 2012-08-22 | 2012-11-28 | 潍柴动力西港新能源发动机有限公司 | Leakage detector |
| CN103267615A (en) * | 2013-05-02 | 2013-08-28 | 江苏洪昌科技股份有限公司 | Water injection mode of hub air tightness testing machine |
| CN203758702U (en) * | 2014-01-27 | 2014-08-06 | 玉林市中创机械有限公司 | Automatic submersible-type leakage test machine for water pump semi-finished products |
| CN106768679A (en) * | 2017-03-10 | 2017-05-31 | 凤城市时代龙增压器制造有限公司 | A kind of turbocharger waterway sealing propertytest system and method |
| CN208672243U (en) * | 2018-07-25 | 2019-03-29 | 东莞瑞城压铸制品有限公司 | Water tank type Motorcycle Boxes air-tightness detection device |
| CN210464805U (en) * | 2019-08-23 | 2020-05-05 | 厦门俞成自动化科技有限公司 | Tightness water testing device |
-
2019
- 2019-10-12 CN CN201910968659.9A patent/CN110672272A/en active Pending
- 2019-10-12 CN CN201921708800.3U patent/CN210464805U/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004017A (en) * | 2010-10-08 | 2011-04-06 | 天津市百顺丰金属制品厂 | Conveniently-controlled multi-functional steel bucket detecting machine |
| CN102798504A (en) * | 2012-08-22 | 2012-11-28 | 潍柴动力西港新能源发动机有限公司 | Leakage detector |
| CN103267615A (en) * | 2013-05-02 | 2013-08-28 | 江苏洪昌科技股份有限公司 | Water injection mode of hub air tightness testing machine |
| CN203758702U (en) * | 2014-01-27 | 2014-08-06 | 玉林市中创机械有限公司 | Automatic submersible-type leakage test machine for water pump semi-finished products |
| CN106768679A (en) * | 2017-03-10 | 2017-05-31 | 凤城市时代龙增压器制造有限公司 | A kind of turbocharger waterway sealing propertytest system and method |
| CN208672243U (en) * | 2018-07-25 | 2019-03-29 | 东莞瑞城压铸制品有限公司 | Water tank type Motorcycle Boxes air-tightness detection device |
| CN210464805U (en) * | 2019-08-23 | 2020-05-05 | 厦门俞成自动化科技有限公司 | Tightness water testing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345165A (en) * | 2020-11-13 | 2021-02-09 | 四川泛华航空仪表电器有限公司 | Tightness detection device |
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| CN210464805U (en) | 2020-05-05 |
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