CN213543935U - Cabin gas testing tool - Google Patents
Cabin gas testing tool Download PDFInfo
- Publication number
- CN213543935U CN213543935U CN202023144802.XU CN202023144802U CN213543935U CN 213543935 U CN213543935 U CN 213543935U CN 202023144802 U CN202023144802 U CN 202023144802U CN 213543935 U CN213543935 U CN 213543935U
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- China
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- water tank
- sealing plug
- hole
- cabin
- balancing weight
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Abstract
The utility model discloses a cabin gas testing tool, which comprises a water tank, an air pressure reading tube and a safety pressure relief device, wherein the air pressure reading tube passes through the top surface of the water tank and extends into the bottom of the water tank; the top surface of the water tank is provided with an inflation hole, a cabin hole and an exhaust hole, the inflation hole is communicated with an inflation pump through a pipeline, and the cabin hole is communicated with a sealed cabin through a pipeline; the safety pressure relief device comprises a connecting rope, a fixed pulley for supporting the connecting rope, and a sealing plug and a balancing weight which are fixedly connected with the two ends of the connecting rope respectively, wherein the sealing plug is positioned in the water tank and matched with the exhaust hole; the weight of the balancing weight is greater than that of the sealing plug, and the gravity borne by the balancing weight minus the buoyancy borne by the balancing weight when the balancing weight is freely immersed in water is smaller than that borne by the sealing plug; the sealing plug is made of elastic material; the liquid level in the water tank is separated from the top surface of the water tank. Simple structure, avoid cabin atmospheric pressure to transship, improve the security of testing process.
Description
Technical Field
The utility model relates to a boats and ships detect instrument field, concretely relates to cabin gas testing instrument.
Background
Some compartments need to be checked for gas tightness during the production of the ship or before the ship leaves the factory. The common detection method is a gas-tight test, in which compressed gas is filled into the chamber and maintained at a predetermined pressure and time, and an effective display liquid (e.g., soap water liquid) is applied to all welding seams to check whether the welding seams of the gas-tight chamber are gas-tight. The test pressure is usually required to be stabilized at 0.015MPa, and generally not to exceed 0.02MPa, while the minimum number of people are left near the cabin to be detected. It is generally determined whether to supplement the chamber with the compressed gas or to stop the compressed gas based on a gas pressure detection device connected to the chamber. If the closure is not timely when the filling of the compressed gas is stopped, the air pressure in the cabin may be overloaded to cause damage or danger to the cabin.
SUMMERY OF THE UTILITY MODEL
To the problem that the air pressure probably transships in the cabin, the utility model provides a can be when the air pressure transships the cabin of gassing examination gas instrument.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a cabin gas testing tool comprises a water tank, an air pressure reading pipe and a safety pressure relief device, wherein the air pressure reading pipe penetrates through the top surface of the water tank and extends into the bottom of the water tank; the top surface of the water tank is provided with an inflation hole, a cabin hole and an exhaust hole, the inflation hole is communicated with an inflation pump through a pipeline, and the cabin hole is communicated with a sealed cabin through a pipeline; the safety pressure relief device comprises a connecting rope, a fixed pulley for supporting the connecting rope, and a sealing plug and a balancing weight which are fixedly connected with two ends of the connecting rope respectively, wherein the sealing plug is positioned in the water tank and matched with the exhaust hole; the weight of the balancing weight is greater than that of the sealing plug, and the gravity borne by the balancing weight minus the buoyancy borne by the balancing weight when the balancing weight is freely immersed in water is smaller than that borne by the sealing plug; the sealing plug is made of elastic material; the liquid level in the water tank is separated from the top surface of the water tank.
If the air pressure in the cabin does not reach or just reaches the rated detection air pressure value, the air pressure reading pipe is internally provided with a liquid level which does not contact with the balancing weight, the sealing plug is abutted against and extrudes the exhaust hole, the water tank is in a sealing state, when the air pressure in the cabin reaches or exceeds the warning air pressure, the air pressure reading pipe is internally provided with liquid which exerts buoyancy on the balancing weight, the sealing plug falls, the exhaust hole is opened, the air pressure in the water tank is reduced, the gravity borne by the balancing weight is subtracted from the gravity borne by the balancing weight until the gravity borne by the balancing weight.
Compared with the prior art, the utility model discloses following beneficial effect has:
simple structure, avoid cabin atmospheric pressure to transship, improve the security of testing process.
Drawings
Fig. 1 shows an embodiment of the present invention.
In the above drawings: 1. a water tank; 2. an air pressure reading tube; 3. an inflation hole; 4. a cabin hole; 5. an exhaust hole; 6. connecting ropes; 7. a fixed pulley; 8. a sealing plug; 9. and a balancing weight.
Detailed Description
As shown in fig. 1, the embodiment of the utility model discloses a cabin gas testing tool, which comprises a water tank 1, an air pressure reading tube 2 which passes through the top surface of the water tank 1 and extends into the bottom of the water tank 1, and a safety pressure relief device, wherein the air pressure reading tube 2 is made of transparent material and is fixedly connected with the water tank 1 in a sealing way; the top surface of the water tank 1 is provided with an inflation hole 3, a cabin hole 4 and an exhaust hole 5, the pipeline of the inflation hole 3 is communicated with an inflation pump, and the pipeline of the cabin hole 4 is communicated with a sealed cabin; the safety pressure relief device comprises a connecting rope 6, a fixed pulley 7 for supporting the connecting rope 6, and a sealing plug 8 and a balancing weight 9 which are fixedly connected with two ends of the connecting rope 6 respectively, wherein the sealing plug 8 is positioned inside the water tank 1 and is matched with the exhaust hole 5, the connecting rope 6 penetrates through the exhaust hole 5 from the sealing plug 8, bypasses the fixed pulley 7 and then falls from the upper part of the air pressure reading pipe 2 to enable the balancing weight 9 to be positioned inside the air pressure reading pipe 2; the weight of the balancing weight 9 is greater than that of the sealing plug 8, and the gravity borne by the balancing weight 9 minus the buoyancy borne by the balancing weight 9 when freely immersed in water is less than that borne by the sealing plug 8; the sealing plug 8 is made of an elastic material; the liquid level in the water tank 1 is spaced from the top surface of the water tank 1.
Preferably, the vent hole 5 is a circular hole, the sealing plug 8 is conical or spherical, and the radius of the bottom surface of the cone or the radius of the sphere is larger than that of the vent hole 5. The sealing plug 8 with the shape is matched with the exhaust hole 5 to have better sealing effect.
Preferably, the air pressure reading pipe 2 is provided with a liquid level sensor, and the liquid level sensor is in signal connection with the inflator pump. When the air pressure in the cabin reaches the rated detection air pressure, the continuous inflation is automatically stopped.
Preferably, the liquid level sensor is connected with an alarm through signals. The detector can be informed that the air pressure in the cabin reaches the rated detection air pressure, and the smearing of the display liquid can be started.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (5)
1. A kind of cabin gas testing tool, characterized by: the pressure-measuring device comprises a water tank, an air pressure reading pipe and a safety pressure relief device, wherein the air pressure reading pipe penetrates through the top surface of the water tank and extends into the bottom of the water tank; the top surface of the water tank is provided with an inflation hole, a cabin hole and an exhaust hole, the inflation hole is communicated with an inflation pump through a pipeline, and the cabin hole is communicated with a sealed cabin through a pipeline; the safety pressure relief device comprises a connecting rope, a fixed pulley for supporting the connecting rope, and a sealing plug and a balancing weight which are fixedly connected with two ends of the connecting rope respectively, wherein the sealing plug is positioned in the water tank and matched with the exhaust hole; the weight of the balancing weight is greater than that of the sealing plug, and the gravity borne by the balancing weight minus the buoyancy borne by the balancing weight when the balancing weight is freely immersed in water is smaller than that borne by the sealing plug; the sealing plug is made of elastic material; the liquid level in the water tank is separated from the top surface of the water tank.
2. A chamber test gas tool as defined in claim 1, wherein: the exhaust hole is a round hole, the sealing plug is conical, and the radius of the bottom surface of the cone is larger than that of the exhaust hole.
3. A chamber test gas tool as defined in claim 1, wherein: the exhaust hole is a circular hole, the sealing plug is spherical, and the radius of the sphere is larger than that of the exhaust hole.
4. A chamber test gas tool as defined in claim 1, wherein: the air pressure reading pipe is provided with a liquid level sensor which is in signal connection with the inflator pump.
5. A chamber test gas tool as defined in claim 4, wherein: and the liquid level sensor is in signal connection with an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023144802.XU CN213543935U (en) | 2020-12-24 | 2020-12-24 | Cabin gas testing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023144802.XU CN213543935U (en) | 2020-12-24 | 2020-12-24 | Cabin gas testing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213543935U true CN213543935U (en) | 2021-06-25 |
Family
ID=76485999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023144802.XU Active CN213543935U (en) | 2020-12-24 | 2020-12-24 | Cabin gas testing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213543935U (en) |
-
2020
- 2020-12-24 CN CN202023144802.XU patent/CN213543935U/en active Active
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