Test box for detecting air leakage of air bag and test instrument using test box

Abstract

The utility model discloses a test box for detecting air leakage of an air bag and a test instrument using the test box, and relates to a detection device of the air bag. Which comprises an airtight box body which is provided with a sealing cover capable of being opened and closed, and is characterized in that the box body is provided with an inflation pipe and a deflation pipe which are communicated with an inner cavity of the box body and an outer space of the box body; an outer port of the inflation tube outside the box body is connected with an inflation source, and an inner port of the inflation tube in the inner cavity of the box body can inflate the air bag in the inner cavity of the box body; and an outer port of the deflation pipe outside the box body is connected with a gas flow meter. According to the technical scheme, the method is practical, the device is simple, large-batch one-time detection can be achieved, the detection efficiency is high, and the detection cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to a test box for detecting air bag leakage and test instrument using the test box relates to air bag detection device, especially the air tightness detection of small air bag used in high -end instrument and meter field. BACKGROUND

[0002] Air bag use field is extremely wide, and the air tightness detection of air bag mainly adopts the most common method, places the inflation air bag in the liquid, looks whether there is bubble, has bubble and shows that air bag leaks, and no bubble shows that air bag does not leak. There is also a method of detecting air pressure, such as the patent document with the name of "air bag leakage monitoring test device" disclosed in the authorized announcement No. CN221859868U, which judges whether the air bag leaks by detecting whether the air pressure changes. For small air bags used in the medical and health field or the high-end instrument and meter field, the quality requirements of the instruments and meters matched with the air bags are very high. In order to prevent the pollution of the air bags during the detection process, many detection methods and detection methods of the prior art cannot be used, or the detection method is very complex, and the detection cost is very high. SUMMARY

[0003] The utility model discloses a kind of test box and detection instrument using the test box for air bag air tightness detection, and the detection method is practical for small air bags used in the medical and health field or the high-end instrument and meter field, device is simple, can realize large batch one-time detection, detection efficiency is high, and detection cost is low.

[0004] The utility model technical scheme: a test box for detecting air bag leakage, including box body, cover;Its characterized in that the cover is covered on the box body and can form the closed box body inner cavity, the box body has inflation pipe and exhaust pipe to connect box body inner cavity and box body outer space;The inflation source is connected to the inflation pipe outer port outside the box body, and the inflation pipe inner port in the box body inner cavity can be inflated for the air bag placed in the box body inner cavity;The gas flowmeter is connected to the exhaust pipe outer port outside the box body.

[0005] The test box for detecting air bag leakage described above, the box body also has emptying pipe to connect box body inner cavity and box body outer space, and the emptying pipe is provided with emptying valve control.

[0006] The test box for detecting air bag leakage described above, the inflation pipe inner port is several.

[0007] The test box for detecting air bag leakage described above, the inflation pipe inner port has inflation air nozzle and air bag air nozzle connection.

[0008] A testing instrument using the test box, the testing instrument comprising a cabinet, characterized in that the cabinet comprises a detection area, wherein an air inlet joint and an air outlet joint are arranged in the detection area, the air inlet joint is connectable with an outer port of an inflation tube of the test box, the air outlet joint is connectable with an outer port of a deflation tube of the test box, and a cover of the test box is arranged in the detection area of the cabinet; a small air pump, a gas flow meter, a pneumatic piston, and a circuit board are arranged in the cabinet, the small air pump is connected with the air inlet joint and can inflate a gas bag in the test box, the gas flow meter is connected with the air outlet joint and can measure the gas flow of the air outlet joint, and the pneumatic piston is fixedly connected with the cover and can push the cover to tightly cover the box body of the test box; the small air pump, the gas flow meter, and the pneumatic piston are controlled by a control circuit on the circuit board; and a control panel is further arranged on the cabinet, the control panel is a touch display screen and is used for inputting operation commands and displaying working states.

[0009] The testing instrument, wherein the detection area is provided with a test box advancing track, and an outer bottom surface of the test box is provided with a track groove matched with the advancing track.

[0010] The testing instrument, wherein the air inlet joint is a self-locking female joint, and the outer port of the inflation tube of the test box is a self-locking male joint; the air outlet joint is a self-locking female joint, and the outer port of the deflation tube of the test box is a self-locking male joint.

[0011] The testing instrument, wherein an upper end surface of the box body is provided with a sealing ring, and the sealing ring is matched with the cover to realize air tightness.

[0012] The testing instrument has the advantages that the method is practical, the device is simple, a large number of tests can be realized at one time, the detection efficiency is high, and the detection cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 FIG. 1 is a schematic view of a cover of a test box for detecting air leakage of a gas bag according to the present application.

[0014] Figure 2 FIG. 2 is a schematic view of a box body of the test box for detecting air leakage of the gas bag according to the present application.

[0015] Figure 3 FIG. 3 is a perspective view of a testing instrument according to the present application.

[0016] Figure 4 FIG. 4 is a front view of the testing instrument according to the present application.

[0017] Figure 5 FIG. 5 is a top view of the testing instrument according to the present application. DETAILED DESCRIPTION

[0018] The utility model will be described in further detail below in combination with the embodiments and drawings.

[0019] Referring to Figure 1 , Figure 2 It is a kind of test box for detecting air bag leakage embodiment of the utility model for. Including box body 1, the box body 1 has the closure of openable cover 2, the cover 2 is covered on the box body 1 can form the closed box inner cavity 13, the box body 1 has the inflation pipe 11 and the gas release pipe 12 intercommunication box inner cavity 13 and box outer space;Inflation source is connected to the inflation pipe outer port outside the box, and the inflation pipe inner port in the box inner cavity 13 has inflation air nozzle 111 can be placed in the box inner cavity 13 air bag inflation;Gas flow meter is connected to the gas release pipe outer port outside the box. There is sealing ring 3 between the box body 1 and cover 2, the sealing ring 3 can make the box inner cavity 13 form airtight space. Thus, when air bag airtightness detection, air bag air nozzle is inserted into the inflation pipe inner port inflation air nozzle 111 of the box inner cavity 13, cover 2 is covered, ensure that the box inner cavity 13 is airtight space, then the air bag in the box inner cavity 13 is inflated to exceed atmospheric pressure certain air pressure value by inflation source and inflation pipe 11, then observe the gas flow meter connected to the gas release pipe outer port, if the gas flow meter has sustained gas outflow, it shows that air bag leakage;If the gas flow meter does not have sustained gas outflow, it shows that air bag does not leak. Because cover 2 is covered when air bag inflation, air bag volume increases, so that the air pressure in the box inner cavity 13 increases, at this time, the gas flow meter will show that a small amount of gas outflow, after inflation, if air bag does not leak, that is, the gas in the air bag does not leak into the box inner cavity 13, then the gas flow meter will not detect gas outflow, if the gas flow meter detects gas outflow, it shows that the gas in the air bag leaks into the box inner cavity 13, shows that air bag leakage. Of course, emptying pipe can also be provided in the box 1 and communicate the box inner cavity and box outer space, the emptying pipe is provided with emptying valve control, open emptying valve when inflation, close emptying valve after inflation, then observe the gas flow meter.

[0020] Referring to Figure 3 , Figure 4 , Figure 5The utility model discloses a test instrument embodiment for the test box. The test instrument includes a cabinet 4, which includes a detection area 41. An air inlet joint 42 and an air outlet joint 43 are provided in the detection area 41. The air inlet joint 42 can be connected to the outer port of the inflation tube of the test box. The air outlet joint 43 can be connected to the outer port of the deflation tube of the test box. The air inlet joint 42 and the air outlet joint 43 are arranged on a lifting plate 47. The lifting plate 47 can move up and down under the drive of a lifting cylinder. In this embodiment, the air inlet joint 42 is a self-locking female joint for inflation. The outer port of the inflation tube of the test box is a self-locking male joint for inflation. The air outlet joint 43 is a self-locking female joint for deflation. The outer port of the deflation tube of the test box is a self-locking male joint for deflation. The cover 2 of the test box is arranged in the detection area 41 of the cabinet 4. A small air pump, a gas flow meter, a pneumatic piston, and a circuit board are arranged in the cabinet 4. The small air pump is connected to the air inlet joint to inflate the air bag in the test box. The gas flow meter is connected to the air outlet joint to measure the gas flow of the air outlet joint. The pneumatic piston 44 is fixedly connected to the cover 2 and can push the cover 2 to tightly cover the box body 1 of the test box. The small air pump, the gas flow meter, and the pneumatic piston are controlled by the control circuit on the circuit board. A control panel 45 is arranged on the cabinet 4. The control panel 45 is a touch display screen for inputting operation commands and displaying the working state. In this embodiment, the detection area 41 is provided with a test box advancing track 46. The outer bottom surface of the box body 1 of the test box is provided with a rail groove 14 matched with the advancing track 46. In use, the air bag is first placed in the inner cavity 13 of the box body of the test box. The air bag nozzle is inserted into the inflation tube inner port inflation nozzle 111 of the inner cavity 13 of the box body. The test box is placed on the advancing track 46. The start command is input on the control panel 45. The test instrument will push the test box along the advancing track 46 into the detection area 41. The pneumatic piston 44 moves down and presses the cover 2, so that the cover 2 tightly covers the box body 1 of the test box. At the same time, the lifting plate 47 moves up under the drive of the lifting cylinder, so that the inflation self-locking male joint and the inflation self-locking female joint are locked, and the deflation self-locking female joint and the deflation self-locking male joint are locked. At this time, the small air pump starts to inflate the air bag to a preset air pressure value. The touch display screen of the control panel 45 is observed. If the air pressure value in the display screen continuously decreases, it indicates that the air bag leaks. If the air pressure value in the display screen is stable, it indicates that the air bag does not leak.

[0021] The above is only a preferred embodiment of the utility model. It should be noted that those skilled in the art can make some modifications and improvements without departing from the creative concept of the utility model. These modifications and improvements are within the protection scope of the utility model.

[0022] In the description of the utility model, need understanding is, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation structure and operation, therefore can not be understood as the limitation to the utility model.

Claims

1. A test cartridge for detecting air bag leaks, comprising a cartridge body, a cover; characterized in that The cover is covered on the box body to form a closed box body cavity. The box body has an inflation pipe and a deflation pipe connected to the box body cavity and the space outside the box body. The inflation pipe outside port outside the box body is connected to the inflation source, and the inflation pipe inside port in the box body cavity can inflate the air bag placed in the box body cavity. The deflation pipe outside port outside the box body is connected to the gas flow meter.

2. The test cartridge for detecting airbag gas leakage according to claim 1, wherein The box body also has a vent pipe connected to the box body cavity and the space outside the box body, and the vent pipe is provided with a vent valve control.

3. The test cartridge for detecting airbag leakage according to claim 1 or 2, characterized in that The inflation pipe inside port is a plurality of.

4. The test cartridge for detecting air bag gas leakage according to claim 3, wherein The inflation pipe inside port has an inflation air nozzle connected to the air bag air nozzle.

5. A test instrument using the test cartridge as claimed in the preceding claim, the test instrument comprising a cabinet, characterized in that The cabinet includes a detection area, an air inlet connector and an air outlet connector are arranged in the detection area, the air inlet connector is connected with the inflation pipe outside port of the test box, the air outlet connector is connected with the deflation pipe outside port of the test box, and the cover of the test box is arranged in the detection area of the cabinet; a small air pump, a gas flow meter, a pneumatic piston and a circuit board are arranged in the cabinet, the small air pump is connected with the air inlet connector to inflate the air bag to be detected in the test box, the gas flow meter is connected with the air outlet connector to measure the gas flow of the air outlet connector, and the pneumatic piston is fixedly connected with the cover and can push the cover to tightly cover the box body of the test box; the small air pump, the gas flow meter and the pneumatic piston are controlled by the control circuit on the circuit board; a control panel is further arranged on the cabinet, the control panel is a touch display screen, and is used for inputting operation commands and displaying working states.

6. A test instrument according to claim 5, characterised in that A test box advancing track is arranged in the detection area, and a rail groove is arranged on the outer bottom surface of the test box and matched with the advancing track.

7. A test instrument according to claim 6, characterised in that The air inlet connector is an inflation self-locking female connector, the inflation pipe outside port of the test box is an inflation self-locking male connector, the air outlet connector is an air outlet self-locking female connector, and the deflation pipe outside port of the test box is an air outlet self-locking male connector.

8. A test instrument according to claim 7, characterised in that A sealing ring is arranged on the upper end surface of the box body, and the sealing ring is matched with the cover to realize airtight sealing.

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