CN114964660A - Hydrogen energy automobile pipeline gas tightness testing arrangement - Google Patents
Hydrogen energy automobile pipeline gas tightness testing arrangement Download PDFInfo
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- CN114964660A CN114964660A CN202210555140.XA CN202210555140A CN114964660A CN 114964660 A CN114964660 A CN 114964660A CN 202210555140 A CN202210555140 A CN 202210555140A CN 114964660 A CN114964660 A CN 114964660A
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- fixedly connected
- sealing
- pipeline
- energy automobile
- box body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The invention discloses a hydrogen energy automobile pipeline gas tightness testing device, which comprises a workbench, wherein the top of the workbench is fixedly connected with a mounting frame, the top of the workbench is fixedly connected with a sealing box body which is positioned under the mounting frame, the front surface of the sealing box body is provided with a gas valve in a penetrating way, the sealing box body is arranged above the workbench, the output end of a cylinder is provided with a sealing top cover, the sealing box body forms a sealed space by utilizing a sealing gasket on the sealing top cover, gas is injected into the sealing box body through the gas valve on the sealing box body at the moment to change the pressure in the sealing box body, the pressure in a pipeline is monitored through a gas pressure sensor in a storage tank, if the gas tightness of the pipeline has a problem, the pressure in the pipeline also changes, and the gas tightness of the pipeline is monitored through the mode, the subsequent drying of the pipeline, the rust application and other problems are not required to be considered.
Description
Technical Field
The invention relates to the technical field of pipeline air tightness devices, in particular to a device for testing the air tightness of a hydrogen energy automobile pipeline.
Background
When the pipeline of the automobile is maintained and installed, the air tightness of the pipeline needs to be detected through a performance testing tool table, the application of the pipeline of the automobile is increasingly wide along with the development of the society,
chinese patent discloses a water immersion type automobile exhaust pipe air tightness detection device and a detection method (publication number: CN113607337A), the exhaust pipe is controlled by a first blocking block and a second blocking block, the water immersion type detection mode can realize the rapid detection of the air tightness of the exhaust pipe, even if air leakage is found at a joint, the air tightness can be directly observed, if the cracks on the surface of a pipeline are small, bubbles generated by the air leakage are difficult to observe, and the air tightness detection device needs to be noticed by workers at any time, the detection mode is not intuitive, and time and labor are wasted.
Disclosure of Invention
The invention aims to provide a device for testing the air tightness of a hydrogen energy automobile pipeline, which is characterized in that a sealing box body is arranged above a workbench, a sealing top cover is arranged at the output end of a cylinder, a sealing gasket on the sealing top cover is utilized to form a sealed space for the sealing box body, gas is injected into the sealing box body through a gas valve on the sealing box body at the moment, so that the pressure in the sealing box body is changed, the pressure in a pipeline is monitored through a gas pressure sensor in a storage groove, if the air tightness of the pipeline has a problem, the pressure in the pipeline also changes, and the air tightness of the pipeline is monitored through the method without considering the problems of subsequent drying, rust application and the like of the pipeline.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a hydrogen energy car pipeline gas tightness testing arrangement, includes the workstation, the top fixedly connected with mounting bracket of workstation, the top of workstation just is located the sealed box body of fixedly connected with under the mounting bracket, the front of sealed box body runs through and is provided with the pneumatic valve, the equal fixedly connected with cylinder in both sides at mounting bracket top, two the output of cylinder all runs through the mounting bracket and extends to the outside of mounting bracket, two fixedly connected with seal top cap between the output of cylinder, seal top cap's internal surface is provided with the backup pad of two removal in opposite directions, two one side that the backup pad is relative all runs through and is provided with the kicker, two the thing groove is put all to one side that the kicker is relative, the internal surface fixedly connected with baroceptor of putting the thing groove, the external surface fixedly connected with elastic sleeve of kicker.
As a further scheme of the invention: one side fixedly connected with of seal cap internal surface rotates the motor, the output fixedly connected with two-way threaded rod that rotates the motor, threaded hole runs through on one side of backup pad, the internal surface and the two-way threaded rod surface threaded connection of screw hole.
As a further scheme of the invention: all run through around the mount frame top and be provided with and run through the cover, the internal surface sliding connection who runs through the cover has the guide bar, the bottom of guide bar and seal cap's top fixed connection.
As a further scheme of the invention: two one side that the backup pad was kept away from relatively all is connected with the depression bar that is used for compressing tightly the kickstand through the dwang rotation, one side of backup pad just is located the below of depression bar and is connected with the stopper that is used for restricting the depression bar position through the short axle rotation.
As a further scheme of the invention: the utility model discloses a spacing clamping block of push rod, including the depression bar, the thing chamber is seted up to one side of depression bar, spacing chamber has been seted up to one side of stopper, one side fixedly connected with thrust spring of putting the intracavity wall, the spacing fixture block of one end fixedly connected with of thrust spring, one side fixedly connected with push rod of spacing fixture block, the surface of push rod and the surface sliding connection in spacing chamber.
As a further scheme of the invention: the top of the inner cavity of the sealing top cover is fixedly connected with a connecting block, the bottom of the connecting block is connected with a hoisting piece through a pin shaft, an annular groove is formed in the inner surface of the hoisting piece, a supporting semi-ring is connected to the inner surface of the annular groove in a sliding mode, a limiting clamping block is fixedly connected to one end of the supporting semi-ring, and one side of the limiting clamping block is connected with the outer surface of the annular groove in a sliding mode.
As a further scheme of the invention: the outer surface cover of sealing top cap is equipped with sealed the pad.
As a further scheme of the invention: the cross-section of brace piece is the stairstepping setting, the surface of elastic sleeve is the arc setting.
The invention has the beneficial effects that:
(1) according to the invention, the sealing box body is arranged above the workbench, the sealing top cover is arranged at the output end of the air cylinder, the sealing box body forms a sealed space by using the sealing gasket on the sealing top cover, at the moment, air is injected into the sealing box body through the air valve on the sealing box body, so that the pressure in the sealing box body is changed, then the pressure in the pipeline is monitored through the air pressure sensor in the storage groove, if the air tightness of the pipeline is in a problem, the pressure in the pipeline is also changed, the air tightness of the pipeline is monitored through the method, and the problems of follow-up drying, rust application and the like of the pipeline are not required to be considered.
(2) According to the invention, the stepped supporting block is arranged on the supporting plate, the rotatable pressing rod and the limiting block are matched, and the thrust spring and the limiting clamping block in the object placing cavity are utilized to fix the pressing rod, so that the supporting block is pressed tightly, the supporting block without specification can be replaced conveniently through the structure, and the structure can adapt to pipelines and pipelines with different diameters, and only the push rod and the rotating pressing rod need to be pushed during replacement, so that the structure is simple to operate and easy to popularize.
(3) According to the invention, the connecting block is fixed in the sealing top cover, the hoisting piece is connected on the connecting block, the pipeline can be preliminarily fixed by utilizing the annular groove in the hoisting piece and the supporting semi-rings sliding in the annular groove, and the two supporting blocks can be ensured to be inserted into the pipeline when the two supporting plates move to one side relatively close to each other through the structure, so that the stability and the practicability of the device are further improved when the device is used.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall external structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the seal cap of the present invention;
FIG. 3 is a schematic view showing an external structure of a support plate according to the present invention;
FIG. 4 is a schematic view of the engagement structure of the pressing rod and the limiting block according to the present invention;
figure 5 is a schematic view of the internal structure of the sling according to the invention.
In the figure: 1. a work table; 2. a support frame; 3. a control panel; 4. a mounting frame; 5. sealing the box body; 6. an air valve; 7. a cylinder; 8. sealing the top cover; 9. penetrating through the sleeve; 10. a guide bar; 11. a double control switch; 12. a gasket; 13. rotating the motor; 14. a bidirectional threaded rod; 15. a support plate; 16. a supporting block; 17. an elastic sleeve; 18. a storage groove; 19. an air pressure sensor; 20. connecting blocks; 21. a support half ring; 22. a limiting block; 23. a threaded hole; 24. rotating the rod; 25. a pressure lever; 26. a pin shaft; 27. a storage cavity; 28. a limiting cavity; 29. a minor axis; 30. a push rod; 31. a thrust spring; 32. a limiting clamping block; 33. an annular groove; 34. hoisting a piece; 35. and a through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the invention relates to a hydrogen energy automobile pipeline airtightness testing device, which comprises a workbench 1, wherein the top of the workbench 1 is fixedly connected with a support frame 2, a control panel 3 is arranged inside the support frame 2, the control panel 3 is used for displaying the air pressure change detected by an air pressure sensor 19, the top of the workbench 1 is fixedly connected with an installation frame 4, the top of the workbench 1 is fixedly connected with a sealing box body 5 which is positioned right below the installation frame 4, the front surface of the sealing box body 5 is provided with an air valve 6 in a penetrating manner, both sides of the top of the installation frame 4 are fixedly connected with air cylinders 7, the output ends of the two air cylinders 7 penetrate through the installation frame 4 and extend to the outside of the installation frame 4, a sealing top cover 8 is fixedly connected between the output ends of the two air cylinders 7, and two support plates 15 which move in opposite directions are arranged on the inner surface of the sealing top cover 8, two supporting blocks 16 are arranged on one side, opposite to the supporting plate 15, of each supporting block 16 in a penetrating mode, a storage groove 18 is formed in one side, opposite to the supporting blocks 16, of each supporting block, an air pressure sensor 19 is fixedly connected to the inner surface of each storage groove 18, an elastic sleeve 17 is fixedly connected to the outer surface of each supporting block 16, the cross section of each supporting block 16 is in a step-shaped arrangement, the surface of each elastic sleeve 17 is in an arc-shaped arrangement, the elastic sleeves 17 in the arc-shaped arrangement can achieve a better sealing effect, a sealing gasket 12 is sleeved on the outer surface of each sealing top cover 8, a sealing box body 5 is arranged above the workbench 1, a sealing top cover 8 is arranged at the output end of the air cylinder 7, the sealing gasket 12 on each sealing top cover 8 is used for forming a sealing space for the sealing box body 5, air is injected into the sealing box body 5 through an air valve 6 on the sealing box body 5, and accordingly pressure in the sealing box body 5 is changed, the pressure in the pipeline is monitored through the air pressure sensor 19 in the storage groove 18, if the air tightness of the pipeline is in a problem, the pressure in the pipeline can be changed, the air tightness of the pipeline is monitored through the mode, and the problems of follow-up drying, rust application and the like of the pipeline are not needed to be considered.
One side fixedly connected with of 8 internal surfaces of seal cap rotates motor 13, the output fixedly connected with two-way threaded rod 14 of rotating motor 13, set up threaded hole 23 is run through to one side of backup pad 15, the internal surface and the 14 surface threaded connection of two-way threaded rod of screw hole 23, all run through around the 4 tops of mounting bracket and be provided with and run through cover 9, the internal surface sliding connection who runs through cover 9 has guide bar 10, the bottom of guide bar 10 and the top fixed connection of seal cap 8, two one side that backup pad 15 kept away from relatively all is rotated through dwang 24 and is connected with the depression bar 25 that is used for compressing tightly kicker 16, one side of backup pad 15 just is located the below of depression bar 25 and is rotated through minor axis 29 and is connected with stopper 22 that is used for restricting depression bar 25 position.
The pipeline support structure comprises a support plate 15, a stepped support block 16, a rotatable compression rod 25 and a limit block 22, wherein the support block 16 is arranged on the support plate 15, the compression rod 31 and the limit block 22 are matched, the compression rod 25 and the limit block 32 in the storage cavity 27 can be used for fixing the compression rod 25, so that the support block 16 is compressed, the support block 16 with different specifications can be conveniently replaced by the structure, pipelines and pipelines with different diameters can be adapted, and only the compression rod 30 is required to be pushed and the compression rod 25 is required to be rotated when the pipeline support structure is replaced, so that the limit cavity 28 is arranged on one side of the limit block 22, the thrust spring 31 is fixedly connected to one side of the inner wall of the storage cavity 27, and the push rod 30 is fixedly connected to one side of the inner wall of the storage cavity 27, the structure is simple to operate and easy to popularize.
The top of the inner cavity of the sealing top cover 8 is fixedly connected with a connecting block 20, the bottom of the connecting block 20 is connected with a hoisting piece 34 through a pin shaft 26, the inner surface of the hoisting piece 34 is provided with an annular groove 33, the inner surface of the annular groove 33 is connected with a supporting half ring 21 in a sliding manner, one end of the supporting half ring 21 is fixedly connected with a limiting fixture block 32, one side of the limiting fixture block 32 is connected with the outer surface of the annular groove 33 in a sliding manner, one side of the connecting block 20 is provided with a through hole 35 in a penetrating manner, the diameter of the through hole 35 is larger than that of the bidirectional threaded rod 14 and does not obstruct the rotation of the bidirectional threaded rod 14, the connecting block 20 is fixed inside the sealing top cover 8, the hoisting piece 34 is connected onto the connecting block 20, the pipeline can be preliminarily fixed by utilizing the annular groove 33 in the hoisting piece 34 and the supporting half ring 21 sliding in the annular groove 33, and when the two supporting plates 15 move to the relatively close side through the structure, the two supporting blocks 16 can be inserted into the pipeline, and the stability and the practicability of the device are further improved.
The working principle of the invention is as follows: firstly, a pipeline is placed right below a hoisting piece 34, then a support semi-ring 21 is pulled to slide on the inner surface of an annular groove 33, a limit clamping block 32 is driven to slide on the inner surface of the annular groove 33 to wrap the pipeline, then the hoisting piece 34 is fixed below a connecting block 20 through a pin shaft 26, at the moment, a rotating motor 13 is started to rotate so as to drive a bidirectional threaded rod 14 to rotate, two support plates 15 move towards opposite sides under the threaded matching of the surfaces of a threaded hole 23 and the bidirectional threaded rod 14 until a support block 16 is positioned in the pipeline, at the moment, an elastic sleeve 17 on the surface of the support block 16 is arranged in an arc shape due to the cross section, so that the two ends of the pipeline are sealed by the elastic sleeve 17, at the moment, a double control switch 11 is pressed down, an air cylinder 7 on a mounting frame 4 is started to extend, so as to drive a sealing top cover 8 to move downwards, the guide rod 10 slides downwards on the inner surface of the through sleeve 9 until the sealing top cover 8 covers the outer surface of the sealing box body 5, the sealing gasket 12 on the sealing top cover 8 seals a gap between the sealing top cover 8 and the sealing box body 5, then the air valve 6 is opened, and quantitative air is blown into the sealing box body 5 through the air valve 6 by an external air pump, so that the pressure in the sealing box body 5 is obviously changed, the pipeline is static, at the moment, the pressure in the pipeline can be monitored by the air pressure sensor 19 in the storage groove 18, whether the pressure in the pipeline is changed or not is observed through the control panel 3, if the pressure in the pipeline is greatly changed, the air tightness of the pipeline is seriously insufficient, if the pressure in the pipeline is not slightly fluctuated or unchanged, the air tightness of the pipeline is good, after the detection is finished, the two supporting plates 15 move towards the side far away from each other by rotating the motor 13 reversely, so that the supporting blocks 16 at the two ends of the pipeline are driven to move towards the side far away from each other, and the pipeline can be taken down by pushing the supporting half rings 21;
if need change bracer 16 and the elastic sleeve 17 of different specifications, push rod 30 on spacing fixture block 32 pushes into the inside of putting thing chamber 27 from the internal surface of spacing chamber 28 this moment, rotate depression bar 25 and stopper 22 this moment, make depression bar 25 no longer push down bracer 16, can take off echelonment bracer 16 from the inside of backup pad 15 this moment, change the inside of bracer 16 insertion backup pad 15 of different specifications, rotate depression bar 25 again and compress tightly bracer 16, and rotate stopper 22 together, lie in the inside of spacing chamber 28 with the one end of depression bar 25, thrust spring 31 at this moment pushes spacing fixture block 32 to the inside of spacing chamber 28, and push rod 30 also slides into the inside of spacing chamber 28 from the inside of putting thing chamber 27, thereby fix bracer 16.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (8)
1. The device for testing the air tightness of the hydrogen energy automobile pipeline comprises a workbench (1), wherein a mounting frame (4) is fixedly connected to the top of the workbench (1), a sealing box body (5) is fixedly connected to the top of the workbench (1) and is positioned under the mounting frame (4), the device is characterized in that an air valve (6) is arranged on the front surface of the sealing box body (5) in a penetrating mode, air cylinders (7) are fixedly connected to the two sides of the top of the mounting frame (4), the output ends of the two air cylinders (7) penetrate through the mounting frame (4) and extend to the outside of the mounting frame (4), a sealing top cover (8) is fixedly connected between the output ends of the two air cylinders (7), two supporting plates (15) moving in opposite directions are arranged on the inner surface of the sealing top cover (8), and supporting blocks (16) are arranged on one side, opposite to the two supporting plates (15), in a penetrating mode, two thing groove (18) have all been seted up to one side that bracer (16) is relative, the internal surface fixed connection who puts thing groove (18) has baroceptor (19), the external surface fixed connection of bracer (16) has elastic sleeve (17).
2. The hydrogen energy automobile pipeline airtightness testing device according to claim 1, wherein a rotating motor (13) is fixedly connected to one side of the inner surface of the sealing top cover (8), a bidirectional threaded rod (14) is fixedly connected to an output end of the rotating motor (13), a threaded hole (23) is formed in one side of the supporting plate (15) in a penetrating manner, and the inner surface of the threaded hole (23) is in threaded connection with the outer surface of the bidirectional threaded rod (14).
3. The hydrogen energy automobile pipeline airtightness testing device according to claim 1, wherein penetrating sleeves (9) penetrate through the peripheries of the tops of the mounting frames (4), guide rods (10) are slidably connected to the inner surfaces of the penetrating sleeves (9), and the bottom ends of the guide rods (10) are fixedly connected with the tops of the sealing top covers (8).
4. The hydrogen energy automobile pipeline airtightness testing device according to claim 1, wherein the two support plates (15) are rotatably connected with a pressure lever (25) for compressing the support block (16) through a rotating rod (24) at the side away from each other, and a limit block (22) for limiting the position of the pressure lever (25) is rotatably connected with one side of the support plate (15) and below the pressure lever (25) through a short shaft (29).
5. The hydrogen energy automobile pipeline airtightness testing device according to claim 4, wherein a storage cavity (27) is formed in one side of the pressure lever (25), a limiting cavity (28) is formed in one side of the limiting block (22), a thrust spring (31) is fixedly connected to one side of the inner wall of the storage cavity (27), a limiting clamping block (32) is fixedly connected to one end of the thrust spring (31), a push rod (30) is fixedly connected to one side of the limiting clamping block (32), and the outer surface of the push rod (30) is in sliding connection with the outer surface of the limiting cavity (28).
6. The device for testing the gas tightness of the hydrogen energy automobile pipeline according to claim 1, wherein a connecting block (20) is fixedly connected to the top of an inner cavity of the sealing top cover (8), a hoisting member (34) is connected to the bottom of the connecting block (20) through a pin shaft (26), an annular groove (33) is formed in the inner surface of the hoisting member (34), a supporting half ring (21) is slidably connected to the inner surface of the annular groove (33), a limiting clamping block (32) is fixedly connected to one end of the supporting half ring (21), and one side of the limiting clamping block (32) is slidably connected to the outer surface of the annular groove (33).
7. The device for testing the air tightness of the hydrogen energy automobile pipeline is characterized in that a sealing gasket (12) is sleeved on the outer surface of the sealing top cover (8).
8. The device for testing the airtightness of the hydrogen energy automobile pipeline is characterized in that the cross section of the supporting block (16) is arranged in a stepped manner, and the surface of the elastic sleeve (17) is arranged in an arc manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210555140.XA CN114964660A (en) | 2022-05-19 | 2022-05-19 | Hydrogen energy automobile pipeline gas tightness testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210555140.XA CN114964660A (en) | 2022-05-19 | 2022-05-19 | Hydrogen energy automobile pipeline gas tightness testing arrangement |
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| Publication Number | Publication Date |
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| CN114964660A true CN114964660A (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210555140.XA Pending CN114964660A (en) | 2022-05-19 | 2022-05-19 | Hydrogen energy automobile pipeline gas tightness testing arrangement |
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| CN (1) | CN114964660A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118090042A (en) * | 2024-04-24 | 2024-05-28 | 常州市朗福电子科技有限公司 | Air conditioner pressure switch air pressure testing machine |
-
2022
- 2022-05-19 CN CN202210555140.XA patent/CN114964660A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118090042A (en) * | 2024-04-24 | 2024-05-28 | 常州市朗福电子科技有限公司 | Air conditioner pressure switch air pressure testing machine |
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