CN213933000U - High-low air pressure air tightness test checking fixture for plastic shell - Google Patents
High-low air pressure air tightness test checking fixture for plastic shell Download PDFInfo
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- CN213933000U CN213933000U CN202022910932.3U CN202022910932U CN213933000U CN 213933000 U CN213933000 U CN 213933000U CN 202022910932 U CN202022910932 U CN 202022910932U CN 213933000 U CN213933000 U CN 213933000U
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- connecting rod
- lifting plate
- workpiece
- tightness test
- plastic shell
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Abstract
The utility model discloses a plastics system shell is with high low pressure gas tightness test utensil of examining, its characterized in that: the device comprises an air source, a bottom plate, a lifting plate and a lifting mechanism, wherein the lifting mechanism is arranged on the bottom plate and can lift the lifting plate, a test hole is formed in the lifting plate and is connected with the air source through an air pipe, and a workpiece is fixed on the lifting plate through a fastening structure and is communicated with the air inlet and the test hole of the workpiece. The device is placed in a water tank during testing, low-pressure testing and high-pressure testing are performed, the whole device can sink into water during low-pressure testing, and then air is conveyed into a workpiece through an air source, so that whether the workpiece leaks or not is known; during high-pressure testing, the lifting plate is driven by the lifting mechanism to lift the workpiece to the water surface for testing, tests with different requirements under water and on water can be completed through the checking fixture, and the quality of products is guaranteed.
Description
Technical Field
The utility model relates to an utensil is examined in gas tightness test for testing plastics system shell, especially an utensil is examined in test of motorcycle intake manifold gas tightness.
Background
The motorcycle intake manifold is formed by bonding three components through glue, and local air leakage caused by uneven glue coating or other problems possibly exists in the bonding process, so that air tightness detection is needed after bonding, and the applicant designs the check tool for the air tightness test of the motorcycle intake manifold to solve the problems.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides an utensil is examined with high low pressure gas tightness test to plastics system shell.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a utensil is examined in high low pressure gas tightness test for plastics system shell which characterized in that: the device comprises an air source, a bottom plate, a lifting plate and a lifting mechanism, wherein the lifting mechanism is arranged on the bottom plate and can lift the lifting plate, a test hole is formed in the lifting plate and is connected with the air source through an air pipe, and a workpiece is fixed on the lifting plate through a fastening structure and is communicated with the air inlet and the test hole of the workpiece.
The fastening structure comprises a fastening screw hole arranged on the lifting plate and a screw matched with the fastening screw hole.
And the lifting plate is provided with a positioning pin.
The lifting mechanism comprises a driving unit arranged on the bottom plate and a connecting rod structure driven by the driving unit to lift, and the lifting plate is hinged with the connecting rod structure.
The connecting rod structure comprises a first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are oppositely arranged, the first connecting rod is hinged with each other, the second connecting rod is hinged with each other, one end of the first connecting rod is hinged with the corresponding second connecting rod, and the other end of the first connecting rod is hinged with the corresponding driving unit; and the second connecting rod is hinged with the lifting plate.
The lifting plate is provided with a rotating shaft, one end of the second connecting rod is provided with a shaft hole, and the rotating shaft penetrates through the two shaft holes and is in running fit with the shaft holes.
The lifting plate is provided with a protective cover capable of covering the workpiece.
And the connecting rod structure is provided with a roller which is in contact with the bottom plate to roll.
The bottom plate is provided with a guide post, and the guide post is in sliding fit with the lifting plate.
The utility model has the advantages that: the utility model discloses an air supply, bottom plate, lifter plate and set up the elevating system that can make the lifter plate go up and down on the bottom plate, be equipped with the test hole on the lifter plate, this test hole passes through the trachea and is connected with the air supply, and the work piece is fixed in on the lifter plate through fastening structure. The device is placed in a water tank during testing, low-pressure testing and high-pressure testing are performed, the whole device can sink into water during low-pressure testing, and then air is conveyed into a workpiece through an air source, so that whether the workpiece leaks or not is known; during high-pressure testing, the lifting plate is driven by the lifting mechanism to lift the workpiece to the water surface for testing, tests with different requirements under water and on water can be completed through the checking fixture, and the quality of products is guaranteed.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural view of a belt workpiece according to the present invention;
fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
Referring to fig. 1 and 2, the utility model discloses a utensil is examined with high low pressure gas tightness test to plastics system shell, including air supply, bottom plate 1, lifter plate 2 and set up the elevating system that can make lifter plate 2 go up and down on bottom plate 1, what the air supply adopted is compressed air, be equipped with test hole 3 on the lifter plate 2, this test hole 3 passes through the trachea and is connected with the air supply, and the work piece is fixed in on lifter plate 2 through fastening structure and makes the air inlet and the test hole 3 intercommunication of work piece 4, has three inlet port on the installation face of work piece 4, and the installation face of work piece 4 and the face contact of lifter plate 2 during the test make an inlet port overlap with test hole 3 just can, because the three inlet port and the inside of work piece 4 all are the intercommunication, and sealing washer 5 in addition between the installation face of work piece 4 and lifter plate 2 during the test, prevent gas leakage.
As shown in the drawings, the fastening structure of the present application includes a fastening screw hole provided on the lifting plate 2 and a screw engaged with the fastening screw hole, but the fastening structure may be other structures. In order to facilitate installation and positioning, the lifting plate 2 is provided with a positioning pin 6, and the positioning pin 6 is matched with a hole in the workpiece 4.
As shown in the figure, the lifting mechanism comprises a guide post 7, a driving unit 8 and a connecting rod structure which is arranged on the bottom plate 1 and driven by the driving unit 8 to lift, the lifting plate 2 is hinged to the connecting rod structure, the guide post 7 is in sliding fit with the lifting plate 2, the driving unit 8 adopts a cylinder, and the cylinder and the connecting rod structure are selected to lift because the lifting plate is immersed in water, so that the lifting is realized, the cost is low, and compared with a mode of directly using the cylinder to jack the lifting plate 2 to lift through the lifting of the connecting rod structure, the stroke requirement of the cylinder is low, the height of the whole checking fixture is low, and the occupied space is small.
As shown in the figure, the connecting rod structure comprises two oppositely arranged connecting rods I9 and two oppositely arranged connecting rods II 10, the connecting rods I9 are hinged with each other at the middle part, the connecting rods II 10 are hinged with each other at the middle part, one end of each connecting rod I9 is hinged with the corresponding connecting rod II 10, and the other end of each connecting rod I9 is hinged with the corresponding driving unit 8; the second connecting rod 10 is hinged to the lifting plate 2, and through the structure, as long as the first connecting rod 9 is pushed by the cylinder, the first connecting rod 9 can drive the second connecting rod 10, so that the lifting plate 2 is lifted. The lifting plate 2 is provided with a rotating shaft, one end of the second connecting rod 10 is provided with a shaft hole, and the rotating shaft penetrates through the two shaft holes and is in running fit with the shaft hole. And the end part of the connecting rod one 9 is provided with a roller 12 which is contacted and rolled by the bottom plate 1, so that the air cylinder can avoid excessive friction when pushing the connecting rod one 9.
The workpiece 4 may be exploded when the high-voltage test is performed, so that the protective cover 13 capable of covering the workpiece 4 is arranged on the lifting plate 2 and is hinged with the lifting plate 2, so that the workpiece 4 is covered during the high-voltage test and the workpiece 4 is exposed during the low-voltage test.
Brief description of the principles of the application: the workpiece 4 is subjected to a low-pressure test and a high-pressure test when testing the air tightness, wherein the low-pressure test is to be soaked in water so as to find whether air leakage exists or not; the high pressure test is a limit test, that is, high pressure gas with preset pressure is introduced into the workpiece 4 for a period of time, and whether the workpiece 4 is cracked or exploded is observed, so that the limit bearing strength of the workpiece 4 is tested, and the high pressure test needs to expose the workpiece 4 on the water surface for testing in order to avoid the influence of water pressure.
The above detailed description is made on the workpiece 4 airtightness testing fixture provided by the embodiment of the present invention, and the principle and the implementation of the present invention are explained by applying the specific examples herein, and the description of the above embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (9)
1. The utility model provides a utensil is examined in high low pressure gas tightness test for plastics system shell which characterized in that: the device comprises an air source, a bottom plate, a lifting plate and a lifting mechanism, wherein the lifting mechanism is arranged on the bottom plate and can lift the lifting plate, a test hole is formed in the lifting plate and is connected with the air source through an air pipe, and a workpiece is fixed on the lifting plate through a fastening structure and is communicated with the air inlet and the test hole of the workpiece.
2. The high-low air pressure air tightness test tool for the plastic shell as claimed in claim 1, wherein: the fastening structure comprises a fastening screw hole arranged on the lifting plate and a screw matched with the fastening screw hole.
3. The high-low air pressure air tightness test tool for the plastic shell as claimed in claim 1, wherein: and the lifting plate is provided with a positioning pin.
4. The high-low air pressure air tightness test tool for the plastic shell as claimed in claim 1, wherein: the lifting mechanism comprises a driving unit arranged on the bottom plate and a connecting rod structure driven by the driving unit to lift, and the lifting plate is hinged with the connecting rod structure.
5. The high-low air pressure air tightness test tool for the plastic shell as claimed in claim 4, wherein: the connecting rod structure comprises a first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are oppositely arranged, the first connecting rod is hinged with each other, the second connecting rod is hinged with each other, one end of the first connecting rod is hinged with the corresponding second connecting rod, and the other end of the first connecting rod is hinged with the corresponding driving unit; and the second connecting rod is hinged with the lifting plate.
6. The high-low air pressure air tightness test tool for the plastic shell as claimed in claim 5, wherein: the lifting plate is provided with a rotating shaft, one end of the second connecting rod is provided with a shaft hole, and the rotating shaft penetrates through the two shaft holes and is in running fit with the shaft holes.
7. The high-low air pressure air tightness test tool for the plastic shell as claimed in claim 1, wherein: the lifting plate is provided with a protective cover capable of covering the workpiece.
8. The high-low air pressure air tightness test tool for the plastic shell as claimed in claim 4, wherein: and the connecting rod structure is provided with a roller which is in contact with the bottom plate to roll.
9. The high-low air pressure air tightness test tool for the plastic shell as claimed in claim 4, wherein: the bottom plate is provided with a guide post, and the guide post is in sliding fit with the lifting plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202022910932.3U CN213933000U (en) | 2020-12-07 | 2020-12-07 | High-low air pressure air tightness test checking fixture for plastic shell |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202022910932.3U CN213933000U (en) | 2020-12-07 | 2020-12-07 | High-low air pressure air tightness test checking fixture for plastic shell |
Publications (1)
Publication Number | Publication Date |
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CN213933000U true CN213933000U (en) | 2021-08-10 |
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Application Number | Title | Priority Date | Filing Date |
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CN202022910932.3U Active CN213933000U (en) | 2020-12-07 | 2020-12-07 | High-low air pressure air tightness test checking fixture for plastic shell |
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CN (1) | CN213933000U (en) |
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2020
- 2020-12-07 CN CN202022910932.3U patent/CN213933000U/en active Active
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