CN209069518U - A kind of check valve tightness measuring device for aircraft pipeline - Google Patents
A kind of check valve tightness measuring device for aircraft pipeline Download PDFInfo
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- CN209069518U CN209069518U CN201821453564.0U CN201821453564U CN209069518U CN 209069518 U CN209069518 U CN 209069518U CN 201821453564 U CN201821453564 U CN 201821453564U CN 209069518 U CN209069518 U CN 209069518U
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Abstract
The utility model provides a kind of check valve tightness measuring device for aircraft pipeline, belongs to sealing test technical field, including vehicle frame, enraged component, canister assembly and box assembly；The tympanites component is mounted on vehicle frame upper left side by the first internal thread stud and the first screw, passes through the second internal thread stud and the 5th screw installation canister assembly in enraged component dextral carriage；Box assembly is provided in the canister assembly dextral carriage；The first plain cushion is provided between the first internal thread stud and the first screw.The utility model drives vacuum generator using compressed nitrogen, vacuumizes to negative-pressure cup, tests fuel pipe leakproofness, do not limited by use occasion, small in volume, and operation and maintenance is convenient, and maintenance cost is low；It is tested using the present apparatus, sensor need to only be removed, test hose is connected to fuel pipe, be not necessarily to integral demounting pipeline, workload is small, and the testing time is short, and method is simple, avoids frequently dismounting fuel passage.
Description
Technical field
The utility model relates to a kind of sealing test equipment, specifically a kind of check valve leakproofness for aircraft pipeline is surveyed
Trial assembly is set.
Background technique
When the allocated check valve of fuel oil main line is assigned to each branch, if non-return valve function is not normal to will lead to upstream combustion
Oil is flow backwards, and need to remove a whole set of pipeline when detecting to non-return valve function, then makes special joint and load support simulation operative scenario
Check valve is tested.Heavy workload, work is complicated, and frequently dismounting influences pipeline life.
Utility model content
In view of the above shortcomings of the prior art, the technical problem to be solved by the present invention is to provide one kind to be used for aircraft pipe
The check valve tightness measuring device in road.
In order to solve the above technical problems, the utility model provides following technical solution:
A kind of check valve tightness measuring device for aircraft pipeline, including vehicle frame, enraged component, canister assembly and case group
Part；The tympanites component is mounted on vehicle frame upper left side, enraged component dextral carriage by the first internal thread stud and the first screw
It is upper that canister assembly is installed by the second internal thread stud and the 5th screw；Box assembly is provided in the canister assembly dextral carriage；Institute
It states and is provided with the first plain cushion between the first internal thread stud and the first screw；It is arranged between the second internal thread stud and the 5th screw
There are third plain cushion and the second spring washer.
As the further improvement project of the utility model: the vehicle frame includes the first steel plate placed vertically and is located at the
The second horizontal positioned steel plate of one steel plate lower right；It is fixedly connected with square tube in rectangular configuration below second steel plate, the
Two steel plate upper right side are provided with the first vertical angle steel；It is provided with equally distributed four wheels bottom plate below the square tube, it is separate
Directional wheel is connected by the second screw and the first spring washer below two bottom plates of the first steel plate, close to two bottoms of the first steel plate
Strap brake universal wheel is connected by the second screw and the first spring washer below plate；It is fixed between first angle steel and the first steel plate
Connect four steel pipes；Two piece of second angle steel is provided between the square tube；First steel plate top is provided with to push vehicle
The round tube of frame.
As the further improvement project of the utility model: the canister assembly includes lower cover plate, upper cover plate and organic glass
Pipe, wherein lower cover plate, upper cover plate and lucite tube form the negative-pressure cup for being tested；The upper cover plate setting is having
Above machine glass tube, lower cover plate is arranged below lucite tube, and passes through screw rod and the 4th spiral shell between upper cover plate and lower cover plate
Mother is fixedly connected；Third plain cushion is arranged in the junction of the screw rod and the 4th nut；The upper cover plate upper left side is provided with liquid feeding
Mouthful, by spending the transparent PU pipe of fast angle plug connection the 4th, upper cover plate downside is provided with safety valve in upper right side, above upper cover plate in
Portion is provided with the first internal-screw ball valve；First internal-screw ball valve top is arranged the second outer silk and twists elbow fastly, and the first internal-screw ball valve is right
Side connects digital display vacuum table；Pass through short silk outside second in the middle part of the lower cover plate lower surface and connects the second internal-screw ball valve；Described second
Internal-screw ball valve lower part is provided with the 5th transparent PU pipe and the second outer silk is twisted fastly.
As the further improvement project of the utility model: the screw rod is uniformly distributed setting four outside lucite tube
Root.
As the utility model further improvement project: the tympanites component includes tympanites；The tympanites front connects
Connect the second transparent PU pipe, the transparent PU pipe of enraged upper right side connection first；The first transparent PU pipe right-hand end is fast by first
It unloads female connector and the first quick-release pin end is connected to test splice；The tympanites left side is connect by third screw with the second nut
To the first steel plate；The second plain cushion is set between the third screw and the second nut.
As the utility model further improvement project: the box assembly includes cabinet；Setting in front of the cabinet
There is the case lid connected by door-hinge；Door handle is provided on the case lid；Vacuum generator is provided with above the box house；
The vacuum generator is fixed on cabinet by the 4th screw and third nut；It is set between 4th screw and third nut
Set third plain cushion；Transparent PU pipe is connected on the right side of the vacuum generator；It is disposed with list from left to right on the transparent PU pipe
To throttle valve, negative pressure pressure regulator valve and ball valve；Short silk outside first between the negative pressure pressure regulator valve and ball valve；The negative pressure pressure regulator valve is logical
It crosses the 4th screw and third nut is fixed on cabinet；The vacuum generator top has been screwed to connect fastly by a first outer elbow
The transparent PU pipe of third；The third transparent PU pipe left end connects the first outer silk and twists fastly；The first outer silk is twisted left side fastly and is provided with
Second quick-release pin end；Oxygen pressure reducing valve is provided with below the box house；It is soft by high pressure on the left of the oxygen pressure reducing valve
Pipe；The high-pressure hose left end connects the second quick-release female connector.
As the utility model further improvement project: the canister assembly top is additionally provided with exhaust valve, canister assembly
Lower part is provided with tapping valve；Canister assembly upper left side is connected to transparent PU pipe, sets gradually ball valve, pressure regulation from right to left on transparent PU pipe
Valve, one-way throttle valve, vacuum generator and quick-release coupling, transparent PU pipe left end are connected to oxygen pressure reducing valve；The canister assembly is left
Lower section is connected to tympanites by transparent PU pipe；The tympanites left side is connected to test splice, and tympanites and survey by transparent PU pipe
It tries and is provided with quick-release coupling on the transparent PU pipe tube body between head.
Compared with prior art, the utility model has the beneficial effects that
The utility model drives vacuum generator using compressed nitrogen, vacuumizes to negative-pressure cup, to fuel pipe leakproofness
It is tested, is not limited by use occasion, small in volume, operation and maintenance is convenient, and maintenance cost is low；Using the present apparatus into
Row test, sensor need to only be removed, test hose is connected to fuel pipe, be not necessarily to integral demounting pipeline, workload
Small, the testing time is short, and method is simple, avoids frequently dismounting fuel passage.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of check valve tightness measuring device for aircraft pipeline；
Fig. 2 is a kind of structural schematic diagram of enraged component in check valve tightness measuring device for aircraft pipeline；
Fig. 3 is a kind of structural schematic diagram of test splice in check valve tightness measuring device for aircraft pipeline；
Fig. 4 is a kind of front view schematic diagram of vehicle frame in check valve tightness measuring device for aircraft pipeline；
Fig. 5 is a kind of top view illustration of vehicle frame in check valve tightness measuring device for aircraft pipeline；
Fig. 6 is a kind of front view schematic diagram of box assembly in check valve tightness measuring device for aircraft pipeline；
Fig. 7 is a kind of schematic internal view of box assembly in check valve tightness measuring device for aircraft pipeline；
Fig. 8 is a kind of structural schematic diagram of canister assembly in check valve tightness measuring device for aircraft pipeline；
Fig. 9 is a kind of structural schematic diagram of filling opening in check valve tightness measuring device for aircraft pipeline；
Figure 10 is a kind of working principle diagram of check valve tightness measuring device for aircraft pipeline；
In figure: 1- tympanites component, the first screw of 2-, the first plain cushion of 3-, the first internal thread of 4- stud, 5- vehicle frame, the second spiral shell of 6-
Nail, the first spring washer of 7-, 8- strap brake universal wheel wheel, 9- directional wheel, 10- box assembly, 11- waterproof connector, 12- canister assembly, 13-
One nut, 14- schematic diagram label, 15- tympanites, the transparent PU of 16- first pipe, the transparent PU of 17- second pipe, 18- third screw, 19-
Second nut, the second plain cushion of 20-, the first quick-release of 21- female connector, the first quick-release of 22- pin end, 23- test splice, 24- first
Steel plate, 25- steel pipe, the first angle steel of 26-, the second steel plate of 27-, 28- square tube, 29- wheel bottom plate, the second angle steel of 30-, 31- round tube,
32- cabinet, 33- door-hinge, 34- case lid, 35- door handle, the second quick-release of 36- pin end, the outer silk of 37- first fastly twist, 38- third
Transparent PU pipe, the outer elbow of 39- first are twisted fastly, 40- vacuum generator, the 4th screw of 41-, 42- third nut, 43- third are flat
Short silk, 48- oxygen pressure reducing valve, 49- high pressure are soft outside pad, 44- one-way throttle valve, 45- negative pressure pressure regulator valve, 46- ball valve, 47- first
Pipe, the second quick-release of 50- female connector, the transparent PU of 51- the 4th are managed, 52-90 degree inserts elbow fastly, outside 53- digital display vacuum table, 54- second
Stubborn elbow, the first internal-screw ball valve of 55-, 56- safety valve, 57- filling opening, 58- upper cover plate, the 4th nut of 59-, 60- are organic fastly for silk
Short silk outside glass tube, 61- screw rod, 62- lower cover plate, the second internal thread of 63- stud, the 5th screw of 64-, 65- second, in 66- second
Pompon valve, the transparent PU of 67- the 5th are managed, the outer silk of 68- second is twisted fastly, 69- third plain cushion, the second spring washer of 70-, 71- exhaust valve, 72-
Pressure regulator valve, 73- quick-release coupling, 74- tapping valve.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
The embodiment of this patent is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining this patent, and cannot be understood as a limitation of this patent.
In the description of this patent, it is to be understood that term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship, be merely for convenience of description this patent and simplify description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to this patent.
In the description of this patent, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection ", " setting " shall be understood in a broad sense, for example, it may be being fixedly linked, being arranged, may be a detachable connection, set
It sets, or is integrally connected, is arranged.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in this patent.
Fig. 1-10 is please referred to, a kind of check valve tightness measuring device for aircraft pipeline is present embodiments provided, is wrapped
Include vehicle frame 5, enraged component 1, canister assembly 12 and box assembly 10；The tympanites component 1 passes through the first internal thread stud 4 and the first spiral shell
Silk 2 is mounted on 5 upper left side of vehicle frame, is installed in enraged 1 dextral carriage 5 of component by the second internal thread stud 63 and the 5th screw 64
Canister assembly 12；Box assembly 10 is provided in 12 dextral carriage 5 of canister assembly；The first internal thread stud 4 and the first screw 2
Between be provided with the first plain cushion 3；Third plain cushion 43 and second are provided between the second internal thread stud 63 and the 5th screw 64
Spring washer 70；
The vehicle frame 5 include the first steel plate 24 for placing vertically and be horizontally arranged positioned at 24 lower right of the first steel plate second
Steel plate 27；Square tube 28 in rectangular configuration is fixedly connected with below second steel plate 27,27 upper right side of the second steel plate is provided with
The first vertical angle steel 26；Equally distributed four wheels bottom plate 29 is provided with below the square tube 28, far from the first steel plate 24
Directional wheel 9 is connected by the second screw 6 and the first spring washer 7 below two bottom plates 29, close to two bottom plates of the first steel plate 24
29 lower sections connect strap brake universal wheel 8 by the second screw 6 and the first spring washer 7；First angle steel 26 and the first steel plate 24
Between be fixedly connected with four steel pipes 25；Two piece of second angle steel 30 is provided between the square tube 28；First steel plate, 24 top
It is provided with the round tube 31 convenient for pushing vehicle frame 5, passes through the first steel plate 24, the second steel plate 27, the first angle steel 26 and four steel pipes
25 surround rectangular frame structure, for fixed enraged component 1 and canister assembly 12；
The canister assembly 12 includes lower cover plate 62, upper cover plate 58 and lucite tube 60, wherein lower cover plate 62, upper cover plate
58 and lucite tube 60 form negative-pressure cup for being tested；The upper cover plate 58 is arranged above lucite tube 60,
Lower cover plate 62 is arranged below lucite tube 60, and passes through screw rod 61 and the 4th nut between upper cover plate 58 and lower cover plate 62
59 are fixedly connected；Third plain cushion 69 is arranged in the junction of the screw rod 61 and the 4th nut 59；The quantity of the screw rod 61 is not added
It limits, in the present embodiment, it is preferred that the screw rod 61 is uniformly distributed setting four outside lucite tube 60；The upper cover plate
58 upper left sides are provided with filling opening 57, and upper right side is by 90 degree the 4th transparent PU pipes 51 of the fast connection of angle plugs 52, under upper cover plate 58
Side is provided with safety valve 56, and 58 upper center of upper cover plate is provided with the first internal-screw ball valve 55；On first internal-screw ball valve 55
Portion is arranged the second outer silk and twists elbow 54 fastly, connects digital display vacuum table 53 on the right side of the first internal-screw ball valve 55；62 following table of lower cover plate
Middle face passes through short silk 65 outside second and connects the second internal-screw ball valve 66；It is transparent that second internal-screw ball valve, 66 lower part is provided with the 5th
PU pipe 67 and the second outer silk twist 68 fastly；
The tympanites component 1 includes tympanites 15；Enraged 15 front connects the second transparent PU pipe 17, enraged 15 upper right side
Connect the first transparent PU pipe 16；First transparent 16 right-hand end of PU pipe is public by the first quick-release female connector 21 and the first quick-release
Connector 22 is connected to test splice 23；Enraged 15 left side is connected to the first steel plate by third screw 18 and the second nut 19
24；Second plain cushion 20 is set between the third screw 18 and the second nut 19；
The box assembly 10 includes cabinet 32；The case lid 34 of the connection of door-hinge 33 is provided in front of the cabinet 32；Institute
It states and is provided with door handle 35 on case lid 34；32 inner upper of cabinet is provided with vacuum generator 40；The vacuum generator
40 are fixed on cabinet 32 by the 4th screw 41 and third nut 42；It is arranged between 4th screw 41 and third nut 42
Third plain cushion 43；Transparent PU pipe is connected on the right side of the vacuum generator 40；It is disposed with from left to right on the transparent PU pipe
One-way throttle valve 44, negative pressure pressure regulator valve 45 and ball valve 46；Short silk 47 outside first between the negative pressure pressure regulator valve 45 and ball valve 46；
The negative pressure pressure regulator valve 45 is fixed on cabinet 32 by the 4th screw 41 and third nut 42；40 top of vacuum generator
39 are twisted fastly by the first outer elbow is connected with the transparent PU pipe 38 of third；Transparent 38 left end of PU pipe of third connects the first outer silk
It is fast to twist 37；The first outer silk twists 37 left sides fastly and is provided with the second quick-release pin end 36；32 lower inside of cabinet is provided with
Oxygen pressure reducing valve 48；Pass through high-pressure hose 49 on the left of the oxygen pressure reducing valve 48；49 left end of the high-pressure hose connection second is fast
Unload female connector 50；
12 top of canister assembly is additionally provided with exhaust valve 71, and 12 lower part of canister assembly is provided with tapping valve 74；Canister assembly 12
Upper left side is connected to transparent PU pipe, sets gradually ball valve 46, pressure regulator valve 72, one-way throttle valve 44, true on transparent PU pipe from right to left
Empty generator 40 and quick-release coupling 73, transparent PU pipe left end are connected to oxygen pressure reducing valve 48；12 lower left of canister assembly passes through
Transparent PU pipe is connected to tympanites 15；Enraged 15 left side is connected to test splice 23, and tympanites 15 and survey by transparent PU pipe
It tries and is provided with quick-release coupling 73 on the transparent PU pipe tube body between first 23.
The working principle of the utility model is: the utility model utilizes sensor at one on band detection fuel passage to install
Mouthful, by the way that one end of transparent test hose is connected to the sensor installation port, the other end is inserted under negative pressure tank level；By pressing
Contracting nitrogen driving vacuum generator is evacuated to -25Kpa to negative-pressure cup, if liquid level still has bubble to emerge after vacuumizing, explanation
Seal for pipe joints failure, on the contrary illustrate that seal for pipe joints is normal.
The utility model drives vacuum generator using compressed nitrogen, vacuumizes to negative-pressure cup, to fuel pipe leakproofness
It is tested, is not limited by use occasion, small in volume, operation and maintenance is convenient, and maintenance cost is low；Using the present apparatus into
Row test, sensor need to only be removed, test hose is connected to fuel pipe, be not necessarily to integral demounting pipeline, workload
Small, the testing time is short, and method is simple, avoids frequently dismounting fuel passage.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (7)
1. a kind of check valve tightness measuring device for aircraft pipeline, characterized in that including vehicle frame (5), enraged component
(1), canister assembly (12) and box assembly (10)；The tympanites component (1) passes through the first internal thread stud (4) and the first screw (2)
It is mounted on vehicle frame (5) upper left side, passes through the second internal thread stud (63) and the 5th screw on enraged component (1) dextral carriage (5)
(64) canister assembly (12) are installed；Box assembly (10) are provided on canister assembly (12) dextral carriage (5)；The first internal thread spiral shell
The first plain cushion (3) are provided between column (4) and the first screw (2)；The second internal thread stud (63) and the 5th screw (64) it
Between be provided with third plain cushion (43) and the second spring washer (70).
2. a kind of check valve tightness measuring device for aircraft pipeline according to claim 1, characterized in that described
Vehicle frame (5) includes the first steel plate (24) placed vertically and second steel plate horizontal positioned positioned at the first steel plate (24) lower right
(27)；It is fixedly connected with square tube in rectangular configuration (28) below second steel plate (27), the second steel plate (27) upper right side is set
It is equipped with vertical the first angle steel (26)；Equally distributed four wheel bottom plates (29) are provided with below the square tube (28), separate the
It is close by the second screw (6) and the first spring washer (7) connection directional wheel (9) below two bottom plates (29) of one steel plate (24)
Strap brake universal wheel is connected by the second screw (6) and the first spring washer (7) below two bottom plates (29) of the first steel plate (24)
(8)；Four steel pipes (25) are fixedly connected between first angle steel (26) and the first steel plate (24)；It is set between the square tube (28)
It is equipped with two piece of second angle steel (30)；First steel plate (24) top is provided with the round tube (31) convenient for pushing vehicle frame (5).
3. a kind of check valve tightness measuring device for aircraft pipeline according to claim 1, characterized in that described
Canister assembly (12) includes lower cover plate (62), upper cover plate (58) and lucite tube (60), wherein lower cover plate (62), upper cover plate
(58) and lucite tube (60) forms the negative-pressure cup for being tested；The upper cover plate (58) is arranged in lucite tube
(60) top, lower cover plate (62) setting pass through between upper cover plate (58) and lower cover plate (62) below lucite tube (60)
Screw rod (61) is fixedly connected with the 4th nut (59)；Third plain cushion is arranged in the junction of the screw rod (61) and the 4th nut (59)
(69)；Upper cover plate (58) upper left side is provided with filling opening (57), and fast angle plug (52) connection the is spent by (90) in upper right side
Four transparent PU pipes (51), upper cover plate (58) downside are provided with safety valve (56), and upper cover plate (58) upper center is provided with first
Internal-screw ball valve (55)；First internal-screw ball valve (55) top is arranged the second outer silk and twists elbow (54) fastly, the first internal-screw ball valve
(55) right side connects digital display vacuum table (53)；Pass through the second short silk (65) connection second outside in the middle part of lower cover plate (62) lower surface
Internal-screw ball valve (66)；Second internal-screw ball valve (66) lower part is provided with the 5th transparent PU pipe (67) and the second outer silk is twisted fastly
(68)。
4. a kind of check valve tightness measuring device for aircraft pipeline according to claim 3, characterized in that described
Screw rod (61) is uniformly distributed setting four outside lucite tube (60).
5. a kind of check valve tightness measuring device for aircraft pipeline according to claim 1, characterized in that described
Enraged component (1) includes enraged (15)；The transparent PU pipe (17) of connection second, enraged (15) upper right side connect in front of the tympanites (15)
Connect the first transparent PU pipe (16)；First transparent PU pipe (16) right-hand end is fast by the first quick-release female connector (21) and first
It unloads pin end (22) and is connected to test splice (23)；Pass through third screw (18) and the second nut (19) on the left of the tympanites (15)
It is connected to the first steel plate (24)；The second plain cushion (20) are set between the third screw (18) and the second nut (19).
6. a kind of check valve tightness measuring device for aircraft pipeline according to claim 1, characterized in that described
Box assembly (10) includes cabinet (32)；The case lid (34) of door-hinge (33) connection is provided in front of the cabinet (32)；It is described
Door handle (35) are provided on case lid (34)；Cabinet (32) inner upper is provided with vacuum generator (40)；The vacuum
Generator (40) is fixed on cabinet (32) by the 4th screw (41) and third nut (42)；4th screw (41) and
Third plain cushion (43) are set between three nuts (42)；Transparent PU pipe is connected on the right side of the vacuum generator (40)；The transparent PU
One-way throttle valve (44), negative pressure pressure regulator valve (45) and ball valve (46) are disposed on pipe from left to right；The negative pressure pressure regulator valve
(45) the short silk (47) outside first between ball valve (46)；The negative pressure pressure regulator valve (45) passes through the 4th screw (41) and third nut
(42) it is fixed on cabinet (32)；(39) are twisted by the first outer elbow fastly and are connected with third in vacuum generator (40) top
Transparent PU manages (38)；The transparent PU pipe of third (38) left end connects the first outer silk and twists (37) fastly；The first outer silk is twisted fastly
(37) left side is provided with the second quick-release pin end (36)；Cabinet (32) lower inside is provided with oxygen pressure reducing valve (48)；Institute
It states on the left of oxygen pressure reducing valve (48) through high-pressure hose (49)；High-pressure hose (49) left end connects the second quick-release female connector
(50)。
7. a kind of check valve tightness measuring device for aircraft pipeline according to claim 1 or 3, characterized in that
Canister assembly (12) top is additionally provided with exhaust valve (71), and canister assembly (12) lower part is provided with tapping valve (74)；Canister assembly
(12) upper left side is connected to transparent PU pipe, sets gradually ball valve (46), pressure regulator valve (72), one-way throttle from right to left on transparent PU pipe
Valve (44), vacuum generator (40) and quick-release coupling (73), transparent PU pipe left end are connected to oxygen pressure reducing valve (48)；The tank group
Part (12) lower left is connected to enraged (15) by transparent PU pipe；Test is connected to by transparent PU pipe on the left of the tympanites (15)
Connector (23), and quick-release coupling (73) are provided on the transparent PU pipe tube body between enraged (15) and test splice (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821453564.0U CN209069518U (en) | 2018-09-05 | 2018-09-05 | A kind of check valve tightness measuring device for aircraft pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821453564.0U CN209069518U (en) | 2018-09-05 | 2018-09-05 | A kind of check valve tightness measuring device for aircraft pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209069518U true CN209069518U (en) | 2019-07-05 |
Family
ID=67091694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821453564.0U Active CN209069518U (en) | 2018-09-05 | 2018-09-05 | A kind of check valve tightness measuring device for aircraft pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209069518U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823468A (en) * | 2019-12-16 | 2020-02-21 | 中国商用飞机有限责任公司 | One-way valve failure detection device and method for detecting failure of one-way valve |
| CN111257596A (en) * | 2020-02-25 | 2020-06-09 | 西南交通大学 | Scanning probe microscope narrow and small experiment chamber environment atmosphere accurate control device |
| CN117367688A (en) * | 2023-12-08 | 2024-01-09 | 江苏众成复合材料有限责任公司 | Method for detecting and analyzing air tightness of glass fiber reinforced plastic pipe |
-
2018
- 2018-09-05 CN CN201821453564.0U patent/CN209069518U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823468A (en) * | 2019-12-16 | 2020-02-21 | 中国商用飞机有限责任公司 | One-way valve failure detection device and method for detecting failure of one-way valve |
| CN111257596A (en) * | 2020-02-25 | 2020-06-09 | 西南交通大学 | Scanning probe microscope narrow and small experiment chamber environment atmosphere accurate control device |
| CN111257596B (en) * | 2020-02-25 | 2021-09-14 | 西南交通大学 | Scanning probe microscope narrow and small experiment chamber environment atmosphere accurate control device |
| CN117367688A (en) * | 2023-12-08 | 2024-01-09 | 江苏众成复合材料有限责任公司 | Method for detecting and analyzing air tightness of glass fiber reinforced plastic pipe |
| CN117367688B (en) * | 2023-12-08 | 2024-02-23 | 江苏众成复合材料有限责任公司 | Method for detecting and analyzing air tightness of glass fiber reinforced plastic pipe |
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