CN112269217A - Internal blockage detection visualization device and detection method - Google Patents

Abstract

The inner blockage detection visualization device comprises a hollow groove-shaped body, wherein the hollow groove-shaped body is locally divided into an upper part and a lower part which are connected through threads; wherein, one end of the upper body is fixed with a glass sheet, and the inner part of the tail end of the lower body is provided with a threaded port; the lower body is also internally provided with a tympanic membrane sealed with the local inner wall, and the top point of the tympanic membrane is contacted with the push rod; a circuit system is arranged in the gap between the push rod and the glass sheet, wherein a contact switch of the circuit system is close to the push rod. The device is communicated with an air source and a pipeline, and whether the pipeline is smooth or not is judged by whether the device emits light or not; and meanwhile, the device can detect whether the device leaks or not when being immersed in water. The invention has simple structure, replaces manual detection, and is convenient and efficient.

Description

Internal blockage detection visualization device and detection method

Technical Field

The invention belongs to automobile air conditioner parts, and particularly relates to a device and a method for detecting pipeline internal blockage.

Background

The automobile pipeline is an important refrigerant circulation channel of the automobile air conditioner, and if the pipeline is blocked due to welding or other reasons, the refrigerant cannot be effectively circulated in the pipeline, so that the refrigeration effect of the automobile air conditioner is influenced. At present, the condition of welding blockage inside an automobile pipeline can be detected only by means of naked eyes or manual work and the like, the efficiency is low, and the omission ratio is high, so that a high-efficiency detection device needs to be developed.

Disclosure of Invention

The invention aims to provide an internal blockage detection visualization device and a detection method.

In order to achieve the purpose, the technical scheme of the invention is as follows:

interior stifled visual device that detects, its characterized in that: the device comprises a hollow groove-shaped body which is locally divided into an upper part and a lower part which are connected through threads; wherein, one end of the upper body is fixed with a glass sheet, and the inner part of the tail end of the lower body is provided with a threaded port; the lower body is also internally provided with a tympanic membrane sealed with the local inner wall, and the top point of the tympanic membrane is contacted with the push rod; a circuit system is arranged in the gap between the push rod and the glass sheet, wherein a contact switch of the circuit system is close to the push rod.

The circuit system also comprises a battery and a light emitting diode forming a loop with the battery.

The glass sheet and the body are sealed by two sealing rings; the upper body and the lower body are sealed by a sealing ring.

The device can be used for detecting the inner blockage of the air conditioning pipeline or other pipelines of the automobile.

The detection method of the visual device by utilizing the inner blockage detection is characterized in that:

firstly, connecting one end of a pipeline to be detected with an adapter, wherein the adapter is connected to a lower body; the other end of the pipeline to be detected is connected with an air source;

secondly, the whole connected device and the pipeline to be detected are immersed into water together, an air source switch is opened, and the pipeline is inflated;

thirdly, the air pressure of an air source is set to be 3.5MPa, the light-emitting diode 7 is bright, and the pipeline is not internally blocked; if not, the blockage is proved; simultaneously observing whether air leakage exists at the middle joint of the pipeline to be detected;

fourthly, the air pressure of the air source is possibly unstable in the using process, when the indicator light is not on, whether the air pressure is more than or equal to 2.4mPa is checked, if the air pressure is less than the value, the air source needs to be replaced or supplemented and then the air pressure is measured; if the light intensity is greater than or equal to the preset value, the pipeline is proved to be internally blocked, and if the light intensity is bright, the pipeline is indicated to be not internally blocked;

when the indicator light is on, the pressure needs to be maintained for at least 20 seconds, if the indicator light is turned on first and then turned off, the air pressure is unstable, and the air source needs to be replaced; if the indicator light is on constantly, the pipeline is proved to be smooth.

The invention has the advantages that: the invention realizes whether the light-emitting diode emits light or not by pushing the contact switch to be closed through air pressure, thereby judging whether the inside of the pipeline is blocked or not through vision; the device is not only suitable for automobile air conditioner pipelines, but also can be used for detecting the inner blockage of other pipelines, and is convenient and efficient. Meanwhile, the air pressure of the air source is unstable in the using process, and the lighting state of the diode can be used, so that the pressure of the air source is judged, and the detection accuracy is improved. In addition, the whole device is placed in water, and whether leakage exists can be detected at the same time.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Detailed Description

The invention will be further explained with reference to the drawings.

Referring to the attached figure 1, the hollow groove-shaped body is locally divided into an upper part and a lower part, and an upper body 10 and a lower body 11 are connected through threads and sealed by a third sealing ring 4; wherein, one end of the upper body 10 is fixed with a glass sheet 9, and the glass sheet 9 and the body are sealed by a first sealing ring 8 and a second sealing ring 10; a threaded opening is formed in the tail end of the lower body 11; the lower body 11 is also internally provided with a tympanic membrane 2 sealed with the local inner wall, and the vertex of the tympanic membrane 2 is contacted with the push rod 3; in the gap between the push rod 3 and the glass sheet 9 there is a circuitry, wherein the contact switch 5 of the circuitry is close to the push rod 3. The circuit system also comprises a battery 6 and a light-emitting diode 7 forming a loop with the battery.

During operation, a pipeline to be detected is placed on a leak detection test bench, a proper plugging joint is selected according to the size of the pipeline, one end of the plugging joint is connected with the lower body 11 of the invention, and the other end of the plugging joint is connected with the pipeline to be detected; the fast-assembling is admitted air and is connected at the other end of waiting to examine the pipeline, start equipment switch. The internal high-pressure air source is connected to push the tympanic membrane 2 to generate elastic deformation, so that the push rod 3 is extruded, the push rod 3 pushes the contact switch of the circuit system to be closed, and then the observation is carried out through the glass sheet 9. If the pipeline is communicated, the light-emitting diode is on, otherwise, the pipeline is an internally blocked defective product.

The specific detection method comprises the following steps:

firstly, connecting one end of a pipeline to be detected with an adapter 1, wherein the adapter 1 is connected to a lower body 11; the other end of the pipeline to be detected is connected with an air source;

secondly, the whole connected device and the pipeline to be detected are immersed into water together, an air source switch is opened, and the pipeline is inflated;

thirdly, the air pressure of an air source is set to be 3.5MPa, the light-emitting diode 7 is bright, and the pipeline is not internally blocked; if not, the blockage is proved; simultaneously observing whether air leakage exists at the middle joint of the pipeline to be detected;

fourthly, the air pressure of the air source is possibly unstable in the using process, when the indicator light is not on, whether the air pressure is more than or equal to 2.4mPa is checked, if the air pressure is less than the value, the air source needs to be replaced or supplemented and then the air pressure is measured; if the light intensity is greater than or equal to the preset value, the pipeline is proved to be internally blocked, and if the light intensity is bright, the pipeline is indicated to be not internally blocked;

when the indicator light is on, the pressure needs to be maintained for at least 20 seconds, if the indicator light is turned on first and then turned off, the air pressure is unstable, and the air source needs to be replaced; if the indicator light is on constantly, the pipeline is proved to be smooth.

The invention can detect the inner blockage and leakage of the pipeline by a visual means, and meanwhile, as the air source is frequently used and the air pressure is unstable, in order to prevent the misjudgment caused by the early air pressure problem, the invention also judges whether the air source pressure is qualified or not by the state of the indicator lamp, thereby improving the detection accuracy.

The device is sealed by the sealing ring and can be placed under water for detection, so that the inner blockage and the leakage are detected.

Claims (6)

1. Interior stifled visual device that detects, its characterized in that: the device comprises a hollow groove-shaped body which is locally divided into an upper part and a lower part which are connected through threads; wherein, one end of the upper body is fixed with a glass sheet, and the inner part of the tail end of the lower body is provided with a threaded port; the lower body is also internally provided with a tympanic membrane sealed with the local inner wall, and the top point of the tympanic membrane is contacted with the push rod; a circuit system is arranged in the gap between the push rod and the glass sheet, wherein a contact switch of the circuit system is close to the push rod.

2. The occlusion detection visualization device according to claim 1, wherein: the circuit system also comprises a battery and a light emitting diode forming a loop with the battery.

3. The occlusion detection visualization device according to claim 2, wherein: the glass sheet and the body are sealed by two sealing rings; the upper body and the lower body are sealed by a sealing ring.

4. The occlusion detection visualization device according to claim 3, wherein: the device can be used for detecting the inner blockage of the air conditioning pipeline or other pipelines of the automobile.

5. A method of testing using the apparatus of any preceding claim, wherein:

firstly, connecting one end of a pipeline to be detected with an adapter, wherein the adapter is connected to a lower body; the other end of the pipeline to be detected is connected with an air source;

secondly, the whole connected device and the pipeline to be detected are immersed into water together, an air source switch is opened, and the pipeline is inflated;

thirdly, the air pressure of an air source is set to be 3.5MPa, the light-emitting diode 7 is bright, and the pipeline is not internally blocked; if not, the blockage is proved; and simultaneously observing whether air leakage exists at the middle joint of the pipeline to be detected.

6. The detection method using the occlusion detection visualization device according to claim 5, wherein:

the air pressure of the air source may be unstable in the using process, when the indicator light is not on, whether the air pressure is more than or equal to 2.4mPa is checked, if the air pressure is less than the value, the air source needs to be replaced or supplemented and then the air pressure is measured; if the light intensity is greater than or equal to the preset value, the pipeline is proved to be internally blocked, and if the light intensity is bright, the pipeline is indicated to be not internally blocked;

when the indicator light is on, the pressure needs to be maintained for at least 20 seconds, if the indicator light is turned on first and then turned off, the air pressure is unstable, and the air source needs to be replaced; if the indicator light is on constantly, the pipeline is proved to be smooth.

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