CN117168724B - Industrial pressure transmitter gas tightness check out test set - Google Patents
Industrial pressure transmitter gas tightness check out test set Download PDFInfo
- Publication number
- CN117168724B CN117168724B CN202311451229.2A CN202311451229A CN117168724B CN 117168724 B CN117168724 B CN 117168724B CN 202311451229 A CN202311451229 A CN 202311451229A CN 117168724 B CN117168724 B CN 117168724B
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- locking
- workbench
- pressure transmitter
- lower sealing
- turnover
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- 238000007789 sealing Methods 0.000 claims abstract description 85
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 230000007306 turnover Effects 0.000 claims abstract description 27
- 230000003287 optical effect Effects 0.000 claims description 17
- 238000010586 diagram Methods 0.000 description 5
- 244000309464 bull Species 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses an air tightness detection device of an industrial pressure transmitter, belonging to the technical field of detection devices; comprises a workbench, a turnover device, a sealing device and a detection device; the turnover device comprises a connector, wherein the connector is connected with a hollow tube and is used for fixing a pressure transmitter; the sealing device comprises a lower sealing shell and an upper sealing cover, central axes of the lower sealing shell and the upper sealing cover coincide, arc plates are coaxially arranged in the lower sealing shell and the upper sealing cover, and a plurality of buffer springs are arranged between the arc plates and the lower sealing shell and between the arc plates and the upper sealing cover; the invention automatically completes the air tightness detection of the pressure transmitter through the turnover device, the sealing device and the detection device, and has simple structure and convenient operation.
Description
Technical Field
The invention belongs to the technical field of detection equipment, and particularly relates to industrial pressure transmitter air tightness detection equipment.
Background
In modern industrial production processes, pressure transmitters are an important device widely used in the field of industrial process control, and pressure transmitters can quickly convert various pressure parameters, such as fluid pressure, pneumatic pressure, hydraulic pressure and the like, into standard electrical signals so as to monitor and control the pressure of a measured medium.
The Chinese patent with publication number of CN101349608A discloses a method and a device for detecting the air tightness of a pressure transmitter, which comprises a comparison container and a container to be detected, wherein two high-pressure control valves are arranged between the two containers and a high-pressure pump. In view of the above, the present invention provides an industrial pressure transmitter air tightness detection device.
Disclosure of Invention
Aiming at the technical problems, the invention adopts the following technical scheme: the industrial pressure transmitter air tightness detection device comprises a workbench, wherein a turnover device, a sealing device and a detection device are arranged on the workbench.
The turnover device comprises a mounting frame, wherein a connector is fixedly arranged on the mounting frame, a hollow tube is connected to the connector, the connector is used for fixing a pressure transmitter, and the mounting frame is arranged on a turnover assembly.
The sealing device comprises a lower sealing shell and an upper sealing cover, central axes of the lower sealing shell and the upper sealing cover coincide, the upper sealing cover is located above the lower sealing shell, a placing groove is formed in one side, close to the mounting frame, of the lower sealing shell, arc plates are arranged on the inner portions of the lower sealing shell and the upper sealing cover in a coaxial mode, a plurality of buffer springs are arranged between the arc plates and the lower sealing shell, between the arc plates and the upper sealing cover, two arc plates are used for providing sealing environments, and the lower sealing shell is mounted on the moving assembly.
Further, the upset subassembly include two symmetrical arrangement's bull stick, two the upper end of bull stick rotate with the both ends of mounting bracket respectively and be connected, the bull stick on fixed mounting have the slide bar, the arc groove sliding fit in slide bar and the arc guide arm, arc guide arm fixed mounting on the workstation, the inner circle of arc guide arm be provided with a plurality of meshing teeth one, meshing teeth one with the cooperation of upset gear meshing, upset gear fixed mounting on the output shaft of upset motor, upset motor and slide bar fixed connection.
Further, the connection part of the rotating rod and the elastic sheet is provided with the elastic sheet, and the elastic sheet is used for assisting the resetting of the mounting frame.
Further, turning device still include central pivot, the both ends of central pivot fixed mounting respectively on two bull sticks, central pivot rotate and install on the workstation, central pivot on fixed mounting have two symmetrical arrangement's gear one, gear one with horizontal rack meshing cooperation, horizontal rack slidable mounting on the workstation, horizontal rack be connected with the removal subassembly.
Further, the movable assembly include two symmetrical arrangement's optical axis, optical axis slidable mounting on the workstation, the one end of two optical axes respectively with two horizontal rack fixed connection, optical axis other end supporting shoe fixed connection, supporting shoe fixed mounting in lower seal shell below, lower seal shell and workstation between be provided with reset spring, reset spring cover establish at the optical axis outer lane, supporting shoe slidable mounting on the guide block, guide block fixed mounting on the workstation, be provided with the rectangular channel on the supporting shoe.
Further, seal assembly still include pushing assembly, pushing assembly include two symmetrically arranged guide bars, guide bar and rectangular channel sliding fit, and guide bar and last sealed cowling fixed connection, one guide bar on be provided with a plurality of meshing teeth two, meshing teeth two and gear two meshing cooperation, gear two fixed mounting on mobile motor's output shaft, mobile motor fixed mounting on the supporting shoe.
Further, sealing device still include locking subassembly, locking subassembly include that two are the locking rack and two are the locking gear that linear arrangement that are linear arrangement, locking rack rotate the outer lane of installing at the lower seal shell, locking gear fixed mounting on the locking axle, locking axle rotate and install on the workstation and with locking motor's output shaft fixed connection, locking motor fixed mounting on the workstation, last sealed cover on be provided with two sliding grooves.
Further, detection device include air pump and pressure detector, air pump and pressure detector fixed mounting on the workstation, air pump pass through hose and hollow tube intercommunication, pressure detector passes through hose and siphunculus intercommunication, siphunculus fixed mounting between two guide bars, and the central axis of siphunculus coincides with the central axis of lower seal shell.
Compared with the prior art, the invention has the beneficial effects that: (1) The invention automatically completes the air tightness detection of the pressure transmitter through the turnover device, the sealing device and the detection device, and has simple structure and convenient operation; (2) The turnover device can drive the sealing device to move together while driving the pressure transmitter to move, so that the detection speed is increased, and the practicability is high; (3) The invention detects the air tightness through the pressure difference, has obvious detection result and is convenient for observation.
Drawings
Fig. 1 is a front view of the overall structure of the present invention.
Fig. 2 is a left side view of the overall structure of the present invention.
Fig. 3 is a top view of the overall structure of the present invention.
Fig. 4 is a schematic diagram of a portion of the structure of the present invention.
Fig. 5 is a schematic view of a partial enlarged structure at a in fig. 4.
FIG. 6 is a schematic diagram of a portion of the structure of the second embodiment of the present invention.
Fig. 7 is a schematic diagram of a portion of the structure of the present invention.
Fig. 8 is a schematic diagram of a portion of the structure of the present invention.
FIG. 9 is a schematic diagram of a pressure transmitter configuration.
Reference numerals: 1-a workbench; 2-an arc-shaped guide arm; 3-arc grooves; 4-meshing first teeth; 5-turning gears; 6-turning over the motor; 7-a slide bar; 8-a central spindle; 9-gear one; 10-horizontal racks; 11-rotating rod; 12-an elastic sheet; 13-mounting rack; 14-connecting heads; 15-hollow tube; 16-an air pump; 17-optical axis; 18-a return spring; 19-a guide block; 20-a lower sealing shell; 21-locking the rack; 22-supporting blocks; 23-rectangular grooves; 24-placing grooves; 25-arc plates; 26-a buffer spring; 27-locking the motor; 28-locking the shaft; 29-locking a gear; 30-upper sealing cover; 31-a sliding groove; 32-a guide bar; 33-second meshing teeth; 34-gear two; 35-a mobile motor; 36-a pressure detector; a 37-pressure transmitter; 3701-end; 3702-fixed block; 3703-a cylinder; 3704-tail; 38-through pipe.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Examples: the industrial pressure transmitter air tightness detection device as shown in fig. 1-9 comprises a workbench 1, wherein a turnover device, a sealing device and a detection device are arranged on the workbench 1.
The turnover device comprises a mounting frame 13, a connector 14 is fixedly arranged on the mounting frame 13, a hollow tube 15 is connected to the connector 14, the connector 14 is used for fixing a pressure transmitter 37, and the mounting frame 13 is arranged on a turnover assembly.
The sealing device comprises a lower sealing shell 20 and an upper sealing cover 30, central axes of the lower sealing shell 20 and the upper sealing cover 30 coincide, the upper sealing cover 30 is located above the lower sealing shell 20, a placing groove 24 is formed in one side, close to the mounting frame 13, of the lower sealing shell 20, an arc-shaped plate 25 is arranged on the inner portion of the lower sealing shell 20 and the inner portion of the upper sealing cover 30 in a coaxial mode, a plurality of buffer springs 26 are arranged between the arc-shaped plate 25 and the lower sealing shell 20 and between the arc-shaped plate 25 and the upper sealing cover 30, two arc-shaped plates 25 are used for providing sealing environments, and the lower sealing shell 20 is mounted on a moving assembly.
The turnover assembly comprises two rotating rods 11 which are symmetrically arranged, the upper ends of the two rotating rods 11 are respectively connected with the two ends of a mounting frame 13 in a rotating mode, a sliding rod 7 is fixedly installed on the rotating rods 11, the sliding rod 7 is in sliding fit with an arc-shaped groove 3 in an arc-shaped guide arm 2, the arc-shaped guide arm 2 is fixedly installed on a workbench 1, a plurality of first meshing teeth 4 are arranged on the inner ring of the arc-shaped guide arm 2, the first meshing teeth 4 are meshed with a turnover gear 5 in a matched mode, the turnover gear 5 is fixedly installed on an output shaft of a turnover motor 6, and the turnover motor 6 is fixedly connected with the sliding rod 7.
Specifically, the rotation direction of the mounting bracket 13 is the direction in which the elastic sheet 12 is compressed, i.e., the mounting bracket 13 can only rotate clockwise (as in fig. 1).
The connection part of the rotating rod 11 and the elastic sheet 12 is provided with the elastic sheet 12, and the elastic sheet 12 is used for assisting the restoration of the mounting frame 13.
The turnover device further comprises a central rotating shaft 8, two ends of the central rotating shaft 8 are respectively and fixedly arranged on two rotating rods 11, the central rotating shaft 8 is rotatably arranged on the workbench 1, two symmetrically arranged gears 9 are fixedly arranged on the central rotating shaft 8, the gears 9 are meshed with a horizontal rack 10, the horizontal rack 10 is slidably arranged on the workbench 1, and the horizontal rack 10 is connected with a moving assembly.
The movable assembly comprises two symmetrically arranged optical shafts 17, the optical shafts 17 are slidably mounted on the workbench 1, one ends of the two optical shafts 17 are fixedly connected with the two horizontal racks 10 respectively, the other ends of the optical shafts 17 are fixedly connected with supporting blocks 22, the supporting blocks 22 are fixedly mounted below the lower sealing shell 20, a reset spring 18 is arranged between the lower sealing shell 20 and the workbench 1, the reset spring 18 is sleeved on the outer ring of the optical shaft 17, the supporting blocks 22 are slidably mounted on the guide blocks 19, the guide blocks 19 are fixedly mounted on the workbench 1, and rectangular grooves 23 are formed in the supporting blocks 22.
The sealing assembly further comprises a pushing assembly, the pushing assembly comprises two symmetrically arranged guide rods 32, the guide rods 32 are in sliding fit with the rectangular grooves 23, the guide rods 32 are fixedly connected with the upper sealing cover 30, a plurality of second meshing teeth 33 are arranged on one guide rod 32, the second meshing teeth 33 are in meshing fit with the second gear 34, the second gear 34 is fixedly mounted on an output shaft of the mobile motor 35, and the mobile motor 35 is fixedly mounted on the supporting block 22.
The sealing device further comprises a locking assembly, the locking assembly comprises two locking racks 21 which are linearly arranged and two locking gears 29 which are linearly arranged, the locking racks 21 are rotatably arranged on the outer ring of the lower sealing shell 20, the locking gears 29 are fixedly arranged on a locking shaft 28, the locking shaft 28 is rotatably arranged on the workbench 1 and fixedly connected with an output shaft of a locking motor 27, the locking motor 27 is fixedly arranged on the workbench 1, and two sliding grooves 31 are formed in an upper sealing cover 30.
The detection device comprises an air pump 16 and a pressure detector 36, the air pump 16 and the pressure detector 36 are fixedly arranged on the workbench 1, the air pump 16 is communicated with the hollow tube 15 through a hose, the pressure detector 36 is communicated with a through tube 38 through a hose, the through tube 38 is fixedly arranged between the two guide rods 32, and the central axis of the through tube 38 is coincident with the central axis of the lower sealing shell 20.
Working principle: in the detection of the pressure transmitter 37, the pressure transmitter 37 is first fixed to the connector 14, specifically, the pressure transmitter 37 includes four parts of an end 3701, a fixing block 3702, a cylinder 3703 and a tail 3704, threads are provided on the end 3701, and in the fixing of the pressure transmitter 37, the end 3701 is screwed into the connector 14, that is, threads are provided in the connector 14, and the end 3701 is screwed in.
After the end 3701 is screwed to the inner ring of the connector 14, the turning motor 6 is started, the output shaft of the turning motor 6 drives the turning gear 5 to rotate, the turning gear 5 is meshed with the first meshing gear 4 arranged on the inner ring of the arc-shaped guide arm 2, then the turning gear 5 moves along the distribution route of the first meshing gear 4, meanwhile, the turning motor 6 is fixedly connected with the sliding rod 7, the sliding rod 7 is in sliding fit with the arc-shaped groove 3, and the sliding rod 7 is fixedly connected with the rotating rod 11, so that the rotating rod 11 rotates clockwise (as shown in fig. 1), the central rotating shaft 8 is fixedly connected with the central rotating shaft 8, the central rotating shaft 8 also rotates on the workbench 1, and the central rotating shaft 8 is fixedly connected with the first gear 9, so that the rotating central rotating shaft 8 drives the first gear 9 to rotate together, the first gear 9 is meshed with the horizontal rack 10, so that the horizontal rack 10 slides leftwards (as shown in fig. 1), the horizontal rack 10 pulls the optical axis 17 to move leftwards, the optical axis 17 is fixed with the supporting block 22, so that the supporting block 22 slides leftwards along the guide block 19 fixedly arranged on the workbench 1, the connecting rod 14 drives the pressure transducer 37 to gradually move from the initial vertical state to the horizontal state, the reset spring 18 is reset to the reset spring 18 in the reset sealing shell 20, and the reset spring is reset spring 18 is reset under the sealing shell 20.
When the pressure transmitter 37 rotates to the upper part of the lower sealing shell 20, the turnover motor 6 is turned off, at the moment, angles exist between the rotating rod 11 and the pressure transmitter 37 and the workbench 1, namely, the rotating rod 11 is not horizontal, then the mounting frame 13 is pressed by a mechanical arm, as the mounting frame 13 and the rotating rod 11 are rotationally connected and the elastic piece 12 is arranged at the connecting part, the mounting frame 13 rotates relative to the rotating rod 11 and compresses the elastic piece 12, the elastic piece 12 is used for assisting the resetting of the mounting frame 13, the mounting frame 13 rotates relative to the rotating rod 11, the mounting frame 13 drives the pressure transmitter 37 to rotate to the horizontal position, the fixed block 3702 falls into the placing groove 24, the cylinder 3703 falls onto the arc plate 25 overlapped with the central axis of the lower sealing shell 20, and the buffer spring 26 between the arc plate 25 and the lower sealing shell 20 plays a role of buffering; then, the moving motor 35 is started, the output shaft of the moving motor 35 drives the gear II 34 to rotate, the gear II 34 is meshed with the meshing gear II 33, so that the meshing gear II 33 can move leftwards continuously, the two guide rods 32 are fixedly connected with the upper sealing cover 30, the upper sealing cover 30 can move leftwards, the upper sealing cover 30 can wrap the cylinder 3703 of the pressure transmitter 37 on the arc plate 25, and then the moving motor 35 stops rotating.
After the upper seal cover 30 stops moving, the locking motor 27 is started, the output shaft of the locking motor 27 drives the locking shaft 28 to rotate, the locking gear 29 fixed on the locking shaft 28 rotates (when the lower seal cover 20 moves, the locking rack 21 rotatably installed on the lower seal cover 20 moves to a position engaged with the locking gear 29), the rotating locking gear 29 rotates the locking rack 21 on the lower seal cover 20, and thus the locking rack 21 rotates into the sliding groove 31 on the upper seal cover 30, so that the locking rack 21 clamps the upper seal cover 30 and the lower seal cover 20.
After the upper seal cover 30 and the lower seal case 20 are clamped, the hollow tube 15 is started, air is supplied to the hollow tube 15 through the hollow tube 15 and the hose, the air enters the end 3701 through the hollow tube 15, enters the cylinder 3703 through the end 3701 and comes out of the tail 3704, finally enters the pressure detector 36 through the hose, a pressure sensor is arranged in the pressure detector 36, the pressure change of the air entering the pressure detector 36 can be detected, and whether the pressure transmitter 37 leaks or not can be obtained by comparing the pressure change with the pressure of the air conveyed in the hollow tube 15, namely, the air tightness detection of the pressure transmitter 37 is completed. In this process, the lower seal housing 20 and the upper seal housing 30 provide a sealed environment while the arcuate plate 25 provides protection against damage to personnel due to debris from excessive pressure applied to the pressure transmitter 37 by improper operation, and while the buffer spring 26 provides a buffer.
Claims (6)
1. The utility model provides an industry pressure transmitter gas tightness check out test set, includes workstation (1), its characterized in that: the workbench (1) is provided with a turnover device, a sealing device and a detection device;
the turnover device comprises a mounting frame (13), wherein a connector (14) is fixedly arranged on the mounting frame (13), a hollow pipe (15) is connected to the connector (14), the connector (14) is used for fixing a pressure transmitter (37), and the mounting frame (13) is arranged on a turnover assembly;
the turnover assembly comprises two rotating rods (11) which are symmetrically arranged, the upper ends of the two rotating rods (11) are respectively connected with two ends of a mounting frame (13) in a rotating mode, a sliding rod (7) is fixedly arranged on the rotating rods (11), the sliding rod (7) is in sliding fit with an arc groove (3) in an arc guide arm (2), the arc guide arm (2) is fixedly arranged on a workbench (1), a plurality of first meshing teeth (4) are arranged on the inner ring of the arc guide arm (2), the first meshing teeth (4) are meshed and matched with a turnover gear (5), the turnover gear (5) is fixedly arranged on an output shaft of a turnover motor (6), and the turnover motor (6) is fixedly connected with the sliding rod (7);
the sealing device comprises a lower sealing shell (20) and an upper sealing cover (30), central axes of the lower sealing shell (20) and the upper sealing cover (30) are coincident, the upper sealing cover (30) is positioned above the lower sealing shell (20), a placing groove (24) is formed in one side, close to a mounting frame (13), of the lower sealing shell (20), an arc-shaped plate (25) is arranged in each of the lower sealing shell (20) and the upper sealing cover (30) in a coaxial mode, a plurality of buffer springs (26) are arranged between each of the arc-shaped plate (25) and the lower sealing shell (20) and between each of the arc-shaped plate (25) and the upper sealing cover (30), the two arc-shaped plates (25) are used for providing a sealing environment, and the lower sealing shell (20) is mounted on a moving assembly;
the detection device comprises an air pump (16) and a pressure detector (36), wherein the air pump (16) and the pressure detector (36) are fixedly arranged on the workbench (1), the air pump (16) is communicated with the hollow pipe (15) through a hose, the pressure detector (36) is communicated with the through pipe (38) through a hose, the through pipe (38) is fixedly arranged between the two guide rods (32), and the central axis of the through pipe (38) coincides with the central axis of the lower sealing shell (20).
2. The industrial pressure transmitter gas tightness detection device of claim 1, wherein: the connecting part of the rotating rod (11) and the elastic sheet (12) is provided with the elastic sheet (12), and the elastic sheet (12) is used for assisting the resetting of the mounting frame (13).
3. The industrial pressure transmitter gas tightness detection device of claim 2, wherein: the turnover device also comprises a central rotating shaft (8), two ends of the central rotating shaft (8) are respectively and fixedly arranged on the two rotating rods (11), the central rotating shaft (8) is rotatably arranged on the workbench (1), two symmetrically arranged gears (9) are fixedly arranged on the central rotating shaft (8), the gears (9) are meshed with the horizontal racks (10), the horizontal racks (10) are slidably arranged on the workbench (1), and the horizontal racks (10) are connected with the movable assembly.
4. An industrial pressure transmitter gas tightness detection device as claimed in claim 3, wherein: the movable assembly comprises two symmetrically arranged optical shafts (17), the optical shafts (17) are slidably mounted on a workbench (1), one ends of the two optical shafts (17) are fixedly connected with two horizontal racks (10) respectively, the other ends of the optical shafts (17) are fixedly connected with supporting blocks (22), the supporting blocks (22) are fixedly mounted below a lower sealing shell (20), a reset spring (18) is arranged between the lower sealing shell (20) and the workbench (1), the reset spring (18) is sleeved on an outer ring of the optical shaft (17), the supporting blocks (22) are slidably mounted on guide blocks (19), the guide blocks (19) are fixedly mounted on the workbench (1), and rectangular grooves (23) are formed in the supporting blocks (22).
5. An industrial pressure transmitter gas tightness detection device as defined in claim 4 wherein: the sealing device also comprises a pushing assembly, the pushing assembly comprises two symmetrically arranged guide rods (32), the guide rods (32) are in sliding fit with the rectangular grooves (23), the guide rods (32) are fixedly connected with the upper sealing cover (30), a plurality of second meshing teeth (33) are arranged on the guide rods (32), the second meshing teeth (33) are in meshing fit with the second meshing teeth (34), the second meshing teeth (34) are fixedly arranged on an output shaft of the mobile motor (35), and the mobile motor (35) is fixedly arranged on the supporting block (22).
6. The industrial pressure transmitter gas tightness detection device of claim 5, wherein: the sealing device also comprises a locking assembly, the locking assembly comprises two locking racks (21) which are linearly arranged and two locking gears (29) which are linearly arranged, the locking racks (21) are rotationally arranged on the outer ring of the lower sealing shell (20), the locking gears (29) are fixedly arranged on a locking shaft (28), the locking shaft (28) is rotationally arranged on the workbench (1) and fixedly connected with an output shaft of the locking motor (27), the locking motor (27) is fixedly arranged on the workbench (1), and two sliding grooves (31) are formed in the upper sealing cover (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311451229.2A CN117168724B (en) | 2023-11-03 | 2023-11-03 | Industrial pressure transmitter gas tightness check out test set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311451229.2A CN117168724B (en) | 2023-11-03 | 2023-11-03 | Industrial pressure transmitter gas tightness check out test set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117168724A CN117168724A (en) | 2023-12-05 |
| CN117168724B true CN117168724B (en) | 2024-01-26 |
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ID=88932158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311451229.2A Active CN117168724B (en) | 2023-11-03 | 2023-11-03 | Industrial pressure transmitter gas tightness check out test set |
Country Status (1)
| Country | Link |
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| CN (1) | CN117168724B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349608A (en) * | 2008-09-17 | 2009-01-21 | 王德全 | Method and apparatus for detecting pressure vessel air tightness |
| CN206056887U (en) * | 2016-08-31 | 2017-03-29 | 天津森罗科技股份有限公司 | A kind of portable airtight detector |
| CN111289193A (en) * | 2020-04-08 | 2020-06-16 | 姜元成 | Valve gas tightness quality inspection equipment |
| CN113092026A (en) * | 2021-03-25 | 2021-07-09 | 中国航发南方工业有限公司 | Air tightness test equipment |
| CN115824530A (en) * | 2022-12-31 | 2023-03-21 | 王炳玉 | Valve gas tightness detection device |
| CN115950596A (en) * | 2023-03-13 | 2023-04-11 | 成立航空技术(成都)有限公司 | Aeroengine nozzle gas tightness detection device |
| CN116818221A (en) * | 2023-08-29 | 2023-09-29 | 西安航宇动力控制科技有限公司 | Microminiature electric gear fuel pump tightness detection system |
-
2023
- 2023-11-03 CN CN202311451229.2A patent/CN117168724B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349608A (en) * | 2008-09-17 | 2009-01-21 | 王德全 | Method and apparatus for detecting pressure vessel air tightness |
| CN206056887U (en) * | 2016-08-31 | 2017-03-29 | 天津森罗科技股份有限公司 | A kind of portable airtight detector |
| CN111289193A (en) * | 2020-04-08 | 2020-06-16 | 姜元成 | Valve gas tightness quality inspection equipment |
| CN113092026A (en) * | 2021-03-25 | 2021-07-09 | 中国航发南方工业有限公司 | Air tightness test equipment |
| CN115824530A (en) * | 2022-12-31 | 2023-03-21 | 王炳玉 | Valve gas tightness detection device |
| CN115950596A (en) * | 2023-03-13 | 2023-04-11 | 成立航空技术(成都)有限公司 | Aeroengine nozzle gas tightness detection device |
| CN116818221A (en) * | 2023-08-29 | 2023-09-29 | 西安航宇动力控制科技有限公司 | Microminiature electric gear fuel pump tightness detection system |
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| Publication number | Publication date |
|---|---|
| CN117168724A (en) | 2023-12-05 |
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