CN213985580U - Valve terminal and leakproofness test equipment - Google Patents
Valve terminal and leakproofness test equipment Download PDFInfo
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- CN213985580U CN213985580U CN202022915041.7U CN202022915041U CN213985580U CN 213985580 U CN213985580 U CN 213985580U CN 202022915041 U CN202022915041 U CN 202022915041U CN 213985580 U CN213985580 U CN 213985580U
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Abstract
The utility model discloses a valve island and leakproofness test equipment, including disk seat and gas pitcher, vacuum generator and a plurality of solenoid valve of setting on the disk seat, be provided with test interface, pressure regulating interface, first air inlet and second air inlet on the disk seat, gas pitcher, vacuum generator and a plurality of solenoid valve communicate through first air flue to fifth air flue, seventh air flue to eleventh air flue, and wherein first air flue to fifth air flue, seventh air flue to eleventh air flue all set up in the disk seat. All set up first air flue to fifth air flue, seventh air flue to eleventh air flue in the disk seat, can improve because the poor problem of precision that current leakproofness tester caused because the pipe connection sets up the pressure regulating interface on the disk seat, the pressure calibration of being convenient for sets up first air inlet and second air inlet on the disk seat, can part the air inlet of malleation test and negative pressure test, adjust pressure alone, convenient to use to and satisfy the test requirement of more products.
Description
Technical Field
The utility model relates to a test equipment technical field, in particular to valve island and leakproofness test equipment.
Background
The tightness tester is a device for testing the tightness of a product, wherein a valve island comprising a plurality of electromagnetic valves is arranged in the tightness tester. In the current valve terminal, be connected with the PU trachea through connecting between solenoid valve and the solenoid valve, have following not enough: 1) the sealing performance is poor, and the leakage generated by pipeline connection is difficult to control due to a plurality of joints, so that the self precision of the instrument is influenced; 2) the pipeline is easy to expand after being pressed, the pipeline used for connection has certain expansibility after being pressed, and the expansion is intensified along with the increase of the pressure, so that the stability of an instrument is influenced; 3) pipeline size overlength, the inside bulky in pipeline, owing to use the pipe connection, the surrounding of pipeline is buckled and is caused the pipeline overlength, and the inside volume grow of pipeline influences the instrument and detects the precision simultaneously.
In addition, the existing tightness tester has residual pressure in an air passage when in use, so that the detection precision is influenced, the positive pressure test and the negative pressure test share the air inlet, the pressure is required to be regulated again when the test items are changed, and the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a valve island and leakproofness test equipment, with the air flue integration in the disk seat, and be provided with independent pressure regulating interface and a plurality of air inlet, can improve the precision of tube coupling and be convenient for pressure regulating and use.
According to the utility model discloses valve island and leakproofness test equipment of embodiment, including the valve seat, be provided with test interface, pressure regulating interface, first air inlet and second air inlet;
the first electromagnetic valve is arranged on the valve seat, is communicated with the test interface and is communicated with the pressure regulating interface through a first air passage and a second air passage;
the second electromagnetic valve is arranged on the valve seat and is communicated with the first electromagnetic valve through a third air passage, and a pressure sensor is communicated with the third air passage;
the third electromagnetic valve is arranged on the valve seat and is communicated with the second electromagnetic valve through a fourth air passage, a fifth air passage and a seventh air passage;
the air tank is arranged on the valve seat and is communicated with the third electromagnetic valve through an eighth air passage;
the fourth electromagnetic valve is arranged on the valve seat and is communicated with the first air inlet, and the fourth electromagnetic valve is communicated with the third electromagnetic valve through a ninth air passage and the seventh air passage;
the fifth electromagnetic valve is arranged on the valve seat and is communicated with the second electromagnetic valve through the seventh air passage, the fifth air passage and the fourth air passage;
the sixth electromagnetic valve is arranged on the valve seat and communicated with the second air inlet, and the sixth electromagnetic valve is communicated with the fifth electromagnetic valve through a tenth air passage and an eleventh air passage;
a vacuum generator in communication with the tenth air passage;
wherein the first to fifth gas passages, the seventh to eleventh gas passages are provided in the valve seat.
According to the utility model discloses valve island has following beneficial effect at least:
will first air flue extremely the fifth air flue seventh air flue extremely the eleventh air flue all sets up in the disk seat, can improve because the poor problem of precision that current leakproofness tester caused because pipe connection set up on the disk seat the pressure regulating interface, the pressure calibration of being convenient for set up first air inlet and second air inlet on the disk seat, can separate the air inlet of malleation test and negative pressure test, adjust pressure alone, convenient to use to and satisfy the test requirement of more products.
According to the utility model discloses a some embodiments, still be provided with the pressure release solenoid valve on the disk seat, the pressure release solenoid valve passes through fifth air flue communicate in the second solenoid valve, the gas outlet intercommunication of pressure release solenoid valve has the sixth air flue, the sixth air flue sets up in the disk seat, and extend to outside the disk seat.
According to some embodiments of the invention, the first to fifth air passages, the seventh to eleventh air passages are arranged in layers in the valve seat.
According to some embodiments of the invention, the first air passage and the second air passage communicate vertically, the fourth air passage and the fifth air passage communicate vertically, the fifth air passage and the seventh air passage communicate vertically, the ninth air passage and the seventh air passage communicate vertically, and the tenth air passage and the eleventh air passage communicate vertically.
According to some embodiments of the invention, the first solenoid valve adopts a normally open solenoid valve.
According to some embodiments of the invention, the repetition accuracy of the pressure sensor is less than or equal to ± 0.02%.
According to some embodiments of the invention, the gas tank has a volume of greater than or equal to 100 ml.
In a second aspect, a tightness testing device according to an embodiment of the present invention includes the above-mentioned valve island.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a valve island according to an embodiment of the present invention;
FIG. 2 is a top perspective view of the valve island shown in FIG. 1;
FIG. 3 is a side perspective view of the valve seat of the valve island shown in FIG. 1.
Reference numerals: the gas-liquid separation device comprises a first gas channel 001, a first electromagnetic valve 002, a second gas channel 003, a pressure sensor 004, a third gas channel 005, a second electromagnetic valve 006, a fourth gas channel 007, a fifth gas channel 008, a pressure relief electromagnetic valve 009, a sixth gas channel 010, a seventh gas channel 011, a third electromagnetic valve 012, an eighth gas channel 013, a gas tank 014, a fourth electromagnetic valve 015, a ninth gas channel 016, a fifth electromagnetic valve 017, a sixth electromagnetic valve 018, a tenth gas channel 019, an eleventh gas channel 020, a vacuum generator 021, a test interface 022, a pressure regulating interface 023, a valve seat 024, a first gas inlet 025 and a second gas inlet 026.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. The description of first, second, etc. if any, is for the purpose of distinguishing between technical features and not intended to indicate or imply relative importance or implicitly indicate a number of indicated technical features or implicitly indicate a precedence relationship of indicated technical features.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 and 2, the embodiment discloses a valve island, which includes a valve seat 024, and a gas tank 014, a vacuum generator 021 and a plurality of solenoid valves disposed on the valve seat 024, wherein the valve seat 024 is provided with a test interface 022, a pressure-regulating interface 023, a first gas inlet 025 and a second gas inlet 026, the plurality of solenoid valves include first to fifth solenoid valves, a first solenoid valve 002 is communicated with the test interface 022 and communicated with the pressure-regulating interface 023 through a first gas passage 001 and a second gas passage 003, a second solenoid valve 006 is communicated with the first 002 solenoid valve through a third gas passage 005, a pressure sensor 004 is communicated with the third gas passage 005, the third solenoid valve 012 is communicated with the second solenoid valve 006 through a fourth gas passage 007, a fifth gas passage 008 and a seventh gas passage 011, the 014 is communicated with the third solenoid valve 012 through an eighth gas passage 013, the fourth solenoid valve 015 is communicated with the first gas inlet 025, the fourth solenoid valve 015 is communicated with the third gas passage 011 through a ninth gas passage 016 and a seventh gas passage 016, the fifth solenoid valve 017 is communicated with the second solenoid valve 006 through a seventh air passage 011, a fifth air passage 008 and a fourth air passage 007, the sixth solenoid valve 018 is communicated with a second air inlet 026, the sixth solenoid valve 018 is communicated with the fifth solenoid valve 017 through a tenth air passage 019 and an eleventh air passage 020, and the vacuum generator 021 is communicated with the tenth air passage 019, wherein the first air passage 001 to the fifth air passage 008, the seventh air passage 011 to the eleventh air passage 020 are all arranged in the valve seat 024.
Based on the valve seat 024, the positive pressure test step of the product comprises the following steps:
1, closing a voltage regulating interface 023;
2 connecting the product to be tested to a test interface 022;
3 opening the first solenoid valve 002, the second solenoid valve 006, the third solenoid valve 012 and the fourth solenoid valve 015, and closing the other solenoid valves;
4, monitoring the pressure value of the pressure sensor 004, and closing the second electromagnetic valve 006, the third electromagnetic valve 012 and the fourth electromagnetic valve 015 when the inflation pressure reaches a preset value;
and 5, when the pressure value of the pressure sensor 004 is kept within the preset range value within the preset pressure maintaining time, the product is tested to be qualified.
The step of carrying out negative pressure test on the product comprises the following steps:
1, closing a voltage regulating interface 023;
2 connecting the product to be tested to a test interface 022;
3, opening a first electromagnetic valve 002, a second electromagnetic valve 006, a fifth electromagnetic valve 017 and a sixth electromagnetic valve 018, and closing other electromagnetic valves;
4, monitoring the pressure value of the pressure sensor 004, and closing the second electromagnetic valve 006, the fifth electromagnetic valve 017 and the sixth electromagnetic valve 018 when the inflation pressure reaches a preset value;
and 5, when the pressure value of the pressure sensor 004 is kept within the preset range value within the preset pressure maintaining time, the product is tested to be qualified.
The disk seat 024 of this embodiment is integrated into one piece structure, with first air flue 001 to fifth air flue 008, seventh air flue 011 to eleventh air flue 020 all sets up in the disk seat 024, can improve because the poor problem of precision that current leakproofness tester caused because the pipe connection, set up pressure regulating interface 023 on the disk seat 024, the pressure calibration of being convenient for, set up first air inlet 025 and second air inlet 026 on the disk seat 024, can separate the air inlet of positive pressure test and negative pressure test, adjust pressure alone, and convenient to use, and satisfy the test requirement of more products.
Still be provided with pressure release solenoid valve 009 on valve seat 024, pressure release solenoid valve 009 communicates in second solenoid valve 006 through fifth air flue 008, and pressure release solenoid valve 009's gas outlet intercommunication has sixth air flue 010, and sixth air flue 010 sets up in valve seat 024, and extends to outside the valve seat 024.
In this embodiment, before the positive pressure test, the pressure calibration is performed, which specifically includes:
1, a standard leak is externally connected through a pressure regulating interface 023;
2, connecting the first air inlet 025, opening the second solenoid valve 006, the third solenoid valve 012 and the fourth solenoid valve 015, and closing the first solenoid valve 002, the fifth solenoid valve 017 and the pressure relief solenoid valve 009;
3, monitoring the pressure sensor 004, and adjusting the first electromagnetic valve 002 to enable the detection value of the pressure sensor 004 to reach a standard value;
and 4, closing the third solenoid valve 012 and the fourth solenoid valve 015, opening the pressure relief solenoid valve 009, and completing positive pressure calibration after releasing the pressure.
In addition, the pressure relief solenoid valve 009 can be used for performing pressure relief after the product is subjected to positive pressure test and negative pressure test, so as to ensure the test accuracy.
The first air passage 001 to the fifth air passage 008 and the seventh air passage 011 to the eleventh air passage 020 are arranged in the valve seat 024 in a layered mode, the three-dimensional space of the valve seat 024 can be fully utilized, the arrangement of the electromagnetic valve on the valve seat 024 is more compact, and the miniaturization design is facilitated. And test interface 022 communicates in pressure sensor 004 through first solenoid valve 002 and third air flue 005, can shorten the route between product and the pressure sensor 004 when the negative pressure is tested, reduces pressure error, is favorable to improving the measuring accuracy.
In order to facilitate processing and meet the air passage arrangement requirement, the two mutually connected air passages are perpendicular to each other, namely the first air passage 001 and the second air passage 003 are perpendicularly communicated, the fourth air passage 007 and the fifth air passage 008 are perpendicularly communicated, the fifth air passage 008 and the seventh air passage 011 are perpendicularly communicated, the ninth air passage 016 and the seventh air passage 011 are perpendicularly communicated, and the tenth air passage 019 and the eleventh air passage 020 are perpendicularly communicated.
In order to reduce the influence of the heat generated by the operation of the first electromagnetic valve 002 on the product to be tested and the test result, the first electromagnetic valve 002 is a normally open type electromagnetic valve, so that the action time of the first electromagnetic valve 002 is shortened, the heat generated by the first electromagnetic valve 002 is reduced, and the influence of temperature rise on the test precision is avoided.
In the above embodiment, the repetition accuracy of the pressure sensor 004 is less than or equal to ± 0.02%, and the repetition accuracy is high, so that the influence of the accuracy of the pressure sensor 004 after long-time use on the test accuracy can be reduced.
In the above embodiment, the volume of the gas tank 014 is greater than or equal to 100ml, which can improve a wider pressure range and thus is compatible with more products to be tested.
The embodiment of the utility model provides a still disclose a leakproofness test equipment, including foretell valve island. The specific structure of the valve island refers to the above embodiments, and since the tightness tester adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (8)
1. A valve island, comprising:
the valve seat (024) is provided with a test interface (022), a pressure regulating interface (023), a first air inlet (025) and a second air inlet (026);
a first solenoid valve (002) disposed on the valve seat (024), the first solenoid valve (002) in communication with the test interface (022) and in communication with the pressure regulating interface (023) through a first air passage (001) and a second air passage (003);
the second electromagnetic valve (006) is arranged on the valve seat (024), the second electromagnetic valve (006) is communicated with the first electromagnetic valve (002) through a third air passage (005), and a pressure sensor (004) is communicated with the third air passage (005);
the third electromagnetic valve (012) is arranged on the valve seat (024), and the third electromagnetic valve (012) is communicated with the second electromagnetic valve (006) through a fourth air passage (007), a fifth air passage (008) and a seventh air passage (011);
a gas tank (014) provided on the valve seat (024) and communicating with the third solenoid valve (012) through an eighth gas passage (013);
a fourth solenoid valve (015) provided on the valve seat (024), the fourth solenoid valve (015) communicating with the first intake port (025), the fourth solenoid valve (015) communicating with the third solenoid valve (012) through a ninth air passage (016) and the seventh air passage (011);
a fifth solenoid valve (017) provided on the valve seat (024), the fifth solenoid valve (017) being communicated with the second solenoid valve (006) through the seventh gas passage (011), the fifth gas passage (008), and the fourth gas passage (007);
a sixth solenoid valve (018) arranged on the valve seat (024), wherein the sixth solenoid valve (018) is communicated with the second air inlet (026), and the sixth solenoid valve (018) is communicated with the fifth solenoid valve (017) through a tenth air passage (019) and an eleventh air passage (020);
a vacuum generator (021) in communication with the tenth air passage (019);
wherein the first air passage (001) to the fifth air passage (008), the seventh air passage (011) to the eleventh air passage (020) are provided in the valve seat (024).
2. The valve island according to claim 1, wherein a pressure relief solenoid valve (009) is further arranged on the valve seat (024), the pressure relief solenoid valve (009) is communicated with the second solenoid valve (006) through the fifth air passage (008), an air outlet of the pressure relief solenoid valve (009) is communicated with a sixth air passage (010), and the sixth air passage (010) is arranged in the valve seat (024) and extends out of the valve seat (024).
3. Valve island according to claim 1 or 2, characterised in that the first (001) to fifth (008) gas passages, the seventh (011) to eleventh (020) gas passages are arranged in layers within the valve seat (024).
4. The valve island according to claim 1, wherein the first air passage (001) and the second air passage (003) are vertically communicated, the fourth air passage (007) and the fifth air passage (008) are vertically communicated, the fifth air passage (008) and the seventh air passage (011) are vertically communicated, the ninth air passage (016) and the seventh air passage (011) are vertically communicated, and the tenth air passage (019) and the eleventh air passage (020) are vertically communicated.
5. The valve island according to claim 1, wherein the first solenoid valve (002) is a normally open type solenoid valve.
6. The valve island according to claim 1, wherein the pressure sensor (004) has a repetition accuracy of less than or equal to ± 0.02%.
7. The valve island according to claim 1, wherein the gas canister (014) has a volume greater than or equal to 100 ml.
8. A leak testing apparatus comprising the valve island of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022915041.7U CN213985580U (en) | 2020-12-08 | 2020-12-08 | Valve terminal and leakproofness test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022915041.7U CN213985580U (en) | 2020-12-08 | 2020-12-08 | Valve terminal and leakproofness test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213985580U true CN213985580U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022915041.7U Active CN213985580U (en) | 2020-12-08 | 2020-12-08 | Valve terminal and leakproofness test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213985580U (en) |
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2020
- 2020-12-08 CN CN202022915041.7U patent/CN213985580U/en active Active
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