Exhaust leakage detection device for hydrogen pipeline of hydrogen fuel cell vehicle

Abstract

The invention relates to the technical field of vehicle detection, and discloses a hydrogen fuel cell vehicle hydrogen pipeline exhaust leakage detection device, which comprises a detection box in which a detection medium is arranged, and also comprises a lifting plate which is slidably arranged at the top end of the detection box along the vertical direction, and side plates are arranged at the two sides of the lifting plate; the rotating assembly is arranged between the two side plates and is used for driving the exhaust adapter pipe to carry out turn-over detection; the rotating assembly comprises a first rotating plate and a second rotating plate; and the sealing assembly is arranged on the inner side of the rotating assembly and used for sealing the two ends of the exhaust adapter pipe to be detected. The exhaust leakage detection device for the hydrogen pipeline of the hydrogen fuel cell vehicle can effectively solve the problem that in the prior art, a pipe opening of a bent pipe is difficult to seal and clamp in an opposite clamping sealing mode, so that air leakage detection of a bent pipe type exhaust adapter pipe is inconvenient.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle detection, and in particular to a hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle. Background Art

[0002] The exhaust adapter, also known as the exhaust pipe connecting pipe or exhaust pipe conversion joint, is an important component in the automobile exhaust system. Its main function is to guide the exhaust gas discharged from the engine from the engine exhaust port to the exhaust pipe to ensure that the exhaust gas can be discharged smoothly out of the vehicle. If there is a leak in the exhaust adapter, it may cause poor exhaust, affect engine performance, and even increase the emission of harmful substances in the exhaust gas. In addition, leakage may also cause noise and vibration problems, affecting the comfort of the vehicle.

[0003] When checking for leaks in traditional exhaust adapters, it is necessary to seal and clamp the tube mouth of the adapter with a seal, then place the adapter below the liquid level, inflate and pressurize the inside of the adapter through one of the tube mouths, and judge the sealing performance of the adapter based on the bubbles generated in the liquid. When sealing and clamping, two seals that apply pressure in opposite directions are usually used to seal the tube mouth. This sealing method is easier to seal the tube mouth of a straight adapter because the clamping directions are parallel. However, in actual use, exhaust adapters still have curved tube shapes (such as L-type, Z-type, etc.), and it is difficult to seal and clamp the tube mouth of the curved tube with the traditional opposite clamping sealing method, which makes it inconvenient to detect leaks in the curved exhaust adapter. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle, which can effectively solve the problem in the prior art that the opposite clamping sealing method is difficult to seal and clamp the pipe opening of the bent pipe, resulting in the bent pipe type exhaust adapter being inconvenient for leakage detection.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle, comprising a detection box, wherein a detection medium is disposed in the detection box, and further comprising: A lifting plate is configured to slide vertically on the top of the detection box, and side plates are provided on both sides of the lifting plate; A rotating assembly is disposed between the two side plates and is used to drive the exhaust transfer tube to perform flip detection; the rotating assembly includes a first rotating plate and a second rotating plate; A sealing assembly, arranged on the inner side of the rotating assembly, used for sealing the two ends of the exhaust transfer pipe to be detected; A first supporting plate, slidably disposed on one side of the first rotating plate, for supporting one side of the exhaust transfer tube when the side plate drives the rotating assembly and the exhaust transfer tube to immerse in the detection medium; The second supporting plate is slidably disposed on one side of the second rotating plate, and is used to support the other side of the exhaust transfer tube after the rotating assembly drives the exhaust transfer tube to turn over and rotate.

[0006] Furthermore, the sealing assembly comprises: A seat body, fixedly disposed between the first rotating plate and the second rotating plate; A plurality of first plug bodies are provided, and the plurality of first plug bodies are provided correspondingly to the plurality of exhaust transfer tubes, and the first plug bodies are driven to move toward the corresponding exhaust transfer tubes; An air inlet pipe connected to one side of the first plug body and used for inflating air into the corresponding exhaust transfer pipe through the first plug body; There are a plurality of second plug bodies, which are arranged corresponding to the plurality of exhaust transfer tubes, and the second plug bodies are driven to move toward the corresponding exhaust transfer tubes to block one end of the exhaust transfer tubes.

[0007] Furthermore, an array of first support seats is provided on one side of the first support plate corresponding to the exhaust transfer pipe; An array of second support seats is provided on one side of the second support plate corresponding to the exhaust transfer pipe; The first support seat and the second support seat are staggered and are used to support the exhaust transfer pipe.

[0008] Furthermore, it also includes a limiting plate, wherein two limiting plates are provided, and the two limiting plates are fixedly connected to the corresponding side plates; A slide groove structure is provided on one side of the limit plate, which is used to drive the first support plate and the second support plate to alternately support and limit the exhaust transfer pipe during the rotation process; A first sliding pin is fixed on one side of the first support plate, and a second sliding pin is fixed on one side of the second support plate. Both the first sliding pin and the second sliding pin are slidably arranged in the slide groove structure.

[0009] Furthermore, both sides of the first rotating plate and the second rotating plate are fixedly connected with driving plates, and one side of the driving plate is fixedly provided with a slip ring; The slip ring is rotatably arranged on one side of the corresponding limiting plate.

[0010] Further, the slide groove structure includes a first slide groove and a second slide groove, and a third slide groove and a fourth slide groove are respectively provided at one end of the first slide groove and the second slide groove; The first sliding pin body is slidably arranged inside the first sliding groove and the third sliding groove; The second sliding pin body is slidably arranged inside the second sliding groove and the fourth sliding groove.

[0011] Furthermore, the first slide groove and the fourth slide groove are arc-shaped grooves of equal diameter; The second sliding groove and the third sliding groove are arc-shaped grooves with variable diameters.

[0012] Furthermore, it also includes a clamping assembly, which is arranged on the outside of the first support seat and the second support seat; Wherein, the pressing assembly comprises: A pressure plate is rotatably arranged on one side of a shaft seat through a pin shaft, and the shaft seat is fixedly arranged on one side corresponding to the first supporting seat or the second supporting seat; The baffle is fixedly connected to one end of the pressure plate close to the pin shaft, and the baffle is vertically arranged to the pressure plate. When the baffle is squeezed by the exhaust transfer tube, it can drive the pressure plate to rotate.

[0013] Furthermore, the clamping assembly further comprises: A card block is slidably arranged on the top of the connecting block, and the connecting block is fixedly arranged on one side corresponding to the first supporting seat or the second supporting seat. The card block can slide along the top of the connecting block under the pressure of the pressure plate, and when the pressure plate is separated from the card block, the card block can be reset to the top of the pressure plate.

[0014] Furthermore, the outer side of the connecting block is rotatably connected to a connecting rod via a fixed shaft; One end of the connecting rod is slidably connected to the clamping block; The other end of the connecting rod is provided with an elastic member for driving the card block to automatically reset, and the elastic member is arranged on one side corresponding to the first supporting seat or the second supporting seat.

[0015] Furthermore, the clamping assembly further comprises a connecting plate, and the connecting plate is fixedly arranged on one side of the connecting block; A guide groove is provided on one side of the connecting plate, and a sliding block is arranged in the guide groove.

[0016] Furthermore, the clamping assembly further comprises: A fixing plate, arranged on one side of the shaft seat; The adsorbent is connected to one side of the fixing plate, and the adsorbent can adsorb the pressing plate so that the pressing plate is attached to one side of the fixing plate.

[0017] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: (1) The present invention is provided with a first support plate to limit the position of the exhaust transfer tube, so that exhaust transfer tubes of different shapes can be stably supported before sealing and installation, so as to limit the two ends of the exhaust transfer tube and facilitate the subsequent sealing of the two ends of the exhaust transfer tube by the sealing assembly.

[0018] (2) The present invention provides a lifting plate to drive the side plates on both sides to move up and down. The side plates can be used to drive the exhaust transfer pipe clamped by the sealing component inside the rotating component to move toward the inside of the detection box for leak detection.

[0019] (3) The present invention provides a rotating assembly to drive the exhaust transfer tube to rotate, so that the exhaust transfer tube can be lifted and reset after the first leak detection, and then the exhaust transfer tube can be driven by the rotating assembly to rotate and turn over, so that the side blocked by the first support plate can be rotated to the top, which is convenient for observation during leak detection.

[0020] (4) The present invention provides a first support plate and a second support plate to alternately support and limit the bottom and top of the exhaust transfer tube, so as to ensure the stability of the exhaust transfer tube during the turning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the present invention; Figure 2 It is a schematic diagram of the structure of the top of an embodiment of the present invention; Figure 3 It is a structural schematic diagram of the main view of an embodiment of the present invention; Figure 4 This is a schematic structural diagram of the feeding side of the rotating assembly according to an embodiment of the present invention; Figure 5 This is a schematic structural diagram of the back of the rotating assembly according to an embodiment of the present invention; Figure 6 It is a schematic structural diagram of a rotating assembly and a sealing assembly according to an embodiment of the present invention; Figure 7 This is a schematic structural diagram of a sealing assembly according to an embodiment of the present invention; Figure 8 It is a schematic structural diagram of a first supporting plate and a second supporting plate according to an embodiment of the present invention; Fig. 9 This is a schematic diagram of the structure of a limiting plate according to an embodiment of the present invention; Fig.10 It is a schematic structural diagram of a clamping assembly according to an embodiment of the present invention.

[0023] The numbers in the figure represent: 100, exhaust transfer pipe; 1. Detection box; 11. Vertical plate; 12. Top plate; 13. First sliding hole; 14. Limiting groove; 2. Lifting plate; 21. Side plate; 22. Vertical slide rail; 23. Vertical slide sleeve; 24. First push rod; 25. Driving plate; 26. Horizontal slide rail; 27. Horizontal slide sleeve; 28. Gear; 29. ​​Motor; 3. Rotating assembly; 31. First rotating plate; 32. Second rotating plate; 33. Driving plate; 34. Tooth plate; 35. Slip ring; 36. Bracket; 37. Roller; 4. Sealing assembly; 41. Sealing body; 42. Second push rod; 43. Connecting rod; 44. Slide plate; 45. First plug body; 46. Slide rod; 47. Air inlet pipe; 48. Hose; 49. Third push rod; 410. Sliding frame; 411. Second plug body; 5. First support plate; 51. First support seat; 52. First sliding pin body; 53. First limit rod; 6. Second supporting plate; 61. Second supporting seat; 62. Second sliding pin body; 63. Second limiting rod; 7. Limiting plate; 71. Connecting piece; 72. First slide slot; 73. Second slide slot; 74. Third slide slot; 75. Fourth slide slot; 8. Clamping assembly; 81. Pressing plate; 82. Baffle; 83. Pin shaft; 84. Shaft seat; 85. Block; 851. Second sliding hole; 852. Third sliding pin body; 853. Connecting rod; 854. Third sliding hole; 855. Fixed shaft; 856. Elastic member; 86. Connecting block; 87. Pin column; 88. Fixed plate; 89. Adsorption member; 810. Connecting plate; 811. Guide groove; 812. Sliding block; 813. Fourth sliding pin body; 814. Fourth sliding hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The present invention will be further described below in conjunction with the embodiments.

[0026] See also Figure 1-Figure 10The present invention provides a technical solution: a hydrogen fuel cell vehicle hydrogen pipeline exhaust leak detection device, comprising a detection box 1, in which a detection medium is contained. In a specific example of the present application, the detection medium is water; a vertical plate 11 is symmetrically fixedly arranged on the top of the detection box 1, and a top plate 12 is fixedly arranged on the top of the vertical plate 11; a lifting plate 2 is movably arranged on the top of the top plate 12, and the lifting plate 2 is lifted and set on the top of the top plate 12 by a first push rod 24, and a side plate 21 is fixedly arranged on the outer side of the lifting plate 2, and the side plate 21 is slidably arranged on the inner side of the top plate 12, and the inner side of the top plate 12 corresponds to the side plate 21. The plate 21 is provided with a first sliding hole 13; a rotating assembly 3 is arranged between the side plates 21 on both sides, and the rotating assembly 3 is driven by the motor 29 to rotate and is arranged between the side plates 21 on both sides, and is used to drive the exhaust transfer tube 100 to perform flip detection; a sealing assembly 4 for sealing both ends of the exhaust transfer tube 100 is arranged on the inner side of the rotating assembly 3; a first supporting plate 5 and a second supporting plate 6 are movably arranged on the inner side of the rotating assembly 3, and the first supporting plate 5 and the second supporting plate 6 are respectively located on both sides of the sealing assembly 4, and are respectively used to support and limit the two sides of the exhaust transfer tube 100. Among them, the first supporting plate 5 is used to support one side of the exhaust transfer tube 100 when the side plate 21 directly drives the rotating assembly 3 and the exhaust transfer tube 100 to immerse in the detection medium; the second supporting plate 6 is used to support the other side of the exhaust transfer tube 100 when the rotating assembly 3 drives the exhaust transfer tube 100 to flip and rotate.

[0027] Among them, the rotating assembly 3 includes a first rotating plate 31 and a second rotating plate 32 for supporting the first support plate 5 and the second support plate 6 respectively. The first rotating plate 31 and the second rotating plate 32 are fixedly arranged on the outside of the sealing assembly 4. When the first rotating plate 31 and the second rotating plate 32 are driven to rotate by external force, they drive the first support plate 5 and the second support plate 6 to alternately support and limit the two sides of the exhaust transfer tube 100.

[0028] Specifically, the first push rod 24 is fixedly arranged on the inner side of the top plate 12, the driving end of the first push rod 24 is connected to the bottom of the lifting plate 2, and the motor 29 is fixedly arranged on the outer side of the side plate 21; in actual use, due to the relatively large height of the rotating assembly 3, the horizontal space occupied by the rotating assembly 3 increases when rotating, which indirectly causes the sealing assembly 4 to be away from the side of loading and unloading, which is not convenient for loading and unloading the exhaust transfer pipe 100. In order to solve this problem, brackets 36 are symmetrically fixed on the outer sides of the first rotating plate 31 and the second rotating plate 32, and rollers 37 are rotatably arranged on the outer sides of the brackets 36. The rollers 37 are located on the inner side of the vertical plate 11, and the inner side of the vertical plate 11 is provided with a limiting groove 14 corresponding to the moving trajectory of the roller 37, which is used to guide the roller 37 to rotate from one side of the detection box 1 to the other side. In this process, the side plate moves along the first sliding hole 13, so that the roller 37 pushes the rotating assembly 3 and the sealing assembly 4 inside it to automatically approach the side of loading and unloading after each rotation.

[0029] In addition, in order to ensure the stable movement of the rotating component 3, a driving plate 25 is fixedly provided at the driving end of the first push rod 24, and transverse slide rails 26 are fixedly provided at both ends of the driving plate 25. Transverse slide sleeves 27 are slidably provided on the outer sides of the transverse slide rails 26. The transverse slide sleeves 27 are fixedly provided at the bottom of the lifting plate 2, and a vertical slide rail 22 is fixedly provided on the outer side of the side plate 21, and a vertical slide sleeve 23 is slidably provided on the outer side of the vertical slide rail 22. The vertical slide sleeve 23 is horizontally slidably provided inside the detection box 1.

[0030] The sealing assembly 4 includes a seat body 41, a first plug body 45, an intake pipe 47 and a second plug body 411. The seat body 41 is fixedly arranged between the first rotating plate 31 and the second rotating plate 32; the first plug body 45 is coaxially arranged with one end of the exhaust transfer tube 100, and is driven by an external force to be sealed and clamped with the end of the exhaust transfer tube 100; the intake pipe 47 is used to inflate the exhaust transfer tube 100 through the first plug body 45; the second plug body 411 is coaxially arranged with the other end of the exhaust transfer tube 100, and is driven by an external force to be sealed and clamped with the end of the exhaust transfer tube 100; wherein, a plurality of first plug bodies 45 and second plug bodies 411 are arranged, and a plurality of first plug bodies 45 are respectively connected to the interior of the intake pipe 47 through a hose 48.

[0031] Specifically, a second push rod 42 is fixedly provided on the outer side of the seat body 41, a connecting rod 43 is fixedly provided on the driving end of the second push rod 42, a slide plate 44 is evenly fixedly provided on the outer side of the connecting rod 43, the slide plates 44 are slidably provided on the outer side of the slide rod 46, the slide rod 46 and the intake pipe 47 are fixedly provided on the outer side of the seat body 41, a first plug body 45 is fixedly provided on the other end of the slide plate 44, and the end of the first plug body 45 away from the exhaust transfer pipe 100 is connected to the inside of the intake pipe 47 through a hose 48, and a third push rod 49 is fixedly provided on the outer side of the seat body 41, a sliding frame 410 is fixedly provided on the driving end of the third push rod 49, the sliding frame 410 is slidably provided on the outer side of the seat body 41, and a second plug body 411 is fixedly provided on the side of the sliding frame 410 close to the exhaust transfer pipe 100 and corresponding to the port of the exhaust transfer pipe 100.

[0032] In the above technical solution, the first push rod 24, the second push rod 42 and the third push rod 49 are power parts with linear travel. In actual work, the first push rod 24, the second push rod 42 and the third push rod 49 can be selected from linear guides, pneumatic push rods, electric push rods or hydraulic push rods.

[0033] A first support seat 51 is fixedly provided on one side of the first support plate 5. A plurality of first support seats 51 are provided corresponding to each exhaust transfer tube 100. The plurality of first support seats 51 are distributed on one side of the exhaust transfer tube 100 and are provided corresponding to the exhaust transfer tube 100. A second support seat 61 is fixedly provided on one side of the second support plate 6. A plurality of second support seats 61 are provided corresponding to the first support seat 51. The second support seat 61 is located on one side of the first support seat 51 and is provided corresponding to the exhaust transfer tube 100. The first support seat 51 and the second support seat 61 are staggered.

[0034] The hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle recorded in this embodiment also includes two limit plates 7. A slide groove structure is provided on the inner side of the limit plate 7, which is used to drive the first support plate 5 and the second support plate 6 to alternately support and limit the exhaust transfer tube 100 during rotation. The two limit plates 7 are fixedly connected to the side plates 21 on both sides through the outer connecting members 71; driving plates 33 are fixedly provided on both sides of the first rotating plate 31 and the second rotating plate 32, and slip rings 35 are fixedly provided on the outer sides of the driving plates 33, and the slip rings 35 are rotatably provided on the outer sides of the limit plates 7.

[0035] Among them, the first supporting plate 5 is fixedly provided with a first sliding pin body 52 on both sides, and the second supporting plate 6 is fixedly provided with a second sliding pin body 62 on both sides. The first sliding pin body 52 and the second sliding pin body 62 are slidably arranged on the inner side of the slide groove structure, and the first supporting plate 5 and the second supporting plate 6 are fixedly provided with a first limiting rod 53 and a second limiting rod 63 on the side away from each other. The first limiting rod 53 and the second limiting rod 63 are respectively slidably connected with the first rotating plate 31 and the second rotating plate 32; and a tooth plate 34 is fixedly provided on the outer side of one of the driving plates 33, and a gear 28 is meshedly arranged on the outer side of the tooth plate 34, and the gear 28 is fixedly provided on the driving end of the motor 29.

[0036] Specifically, the slide groove structure includes a first slide groove 72 and a second slide groove 73, the first slide groove 72 is a constant diameter arc groove, and the second slide groove 73 is a variable diameter arc groove; the central angles corresponding to the first slide groove 72 and the second slide groove 73 are equal, and the first slide groove 72 and the second slide groove 73 are respectively provided with a third slide groove 74 and a fourth slide groove 75 at one end, the third slide groove 74 is a variable diameter arc groove, and the fourth slide groove 75 is a constant diameter arc groove; wherein the first sliding pin body 52 is slidably arranged inside the first slide groove 72 and the third slide groove 74, and the second sliding pin body 62 is slidably arranged inside the second slide groove 73 and the fourth slide groove 75.

[0037] In addition, the hydrogen pipeline exhaust leak detection device of the hydrogen fuel cell vehicle also includes a clamping assembly 8, which is arranged on the outer side of the first support seat 51 and the second support seat 61. The clamping assembly 8 includes a pressure plate 81, a baffle 82 and a clamping block 85. The pressure plate 81 is rotatably arranged on the outer side of the shaft seat 84 through a pin shaft 83 at one end, and the shaft seat 84 is fixedly arranged on the outer side of the corresponding first support seat 51 or the second support seat 61; the baffle 82 is fixedly arranged at one end of the pressure plate 81 close to the pin shaft 83, and is arranged vertically with the pressure plate 81, and the pressure plate 81 is driven to rotate and clamp by the pressure of the exhaust transfer pipe 100; the clamping block 85 is slidably arranged on the top of the connecting block 86, and the connecting block 86 is fixedly arranged on the outer side of the corresponding first support seat 51 or the second support seat 61. The clamping block 85 is squeezed by the pressure plate 81 and slides horizontally, and automatically resets to the top of the pressure plate 81; a fixing plate 88 is fixedly arranged on the outer side of the shaft seat 84, and an adsorption member 89 for adsorbing the pressure plate 81 is fixedly arranged on the inner side of the fixing plate 88.

[0038] In the above technical solution, the adsorption member 89 is a magnetic member, and the corresponding pressing plate 81 is made of a material that can be adsorbed by the magnetic member. This is a matter of course and will not be elaborated here.

[0039] The clamping assembly 8 also includes a connecting plate 810, which is fixedly arranged on the outside of the connecting block 86, and a guide groove 811 is fixedly arranged at the bottom of the connecting plate 810, and a slider 812 is slidably arranged inside the guide groove 811; wherein, a connecting rod 853 is rotatably connected to the outside of the connecting block 86 through a fixed shaft 855, and a third sliding hole 854 is opened on the inner side of one end of the connecting rod 853, and a third sliding pin body 852 is slidably arranged on the inner side of the third sliding hole 854, and the third sliding pin body 852 is fixedly arranged on the outside of the clamping block 85, and a second sliding hole 851 is opened on the inner side of the clamping block 85, and a pin column 87 is slidably arranged on the inner side of the second sliding hole 851, and the pin column 87 is fixedly arranged on the top of the connecting block 86, and an elastic member 856 for driving the clamping block 85 to automatically reset is arranged on the other end of the connecting rod 853, and the elastic member 856 is arranged on the outer side of the first supporting seat 51. Specifically, the bottom of the slider 812 cooperates with the inner side of the guide groove 811 , a fourth sliding pin 813 is fixedly provided on the outer side of the slider 812 , and fourth sliding holes 814 for the fourth sliding pin 813 to slide through are opened on both sides of the guide groove 811 .

[0040] The principle and advantages of hydrogen pipeline exhaust leak detection device for hydrogen fuel cell vehicles: First, when installing the exhaust adapter tube 100, the exhaust adapter tube 100 is placed on one side of the first support plate 5, and each exhaust adapter tube 100 can be supported and limited by the first support seat 51 on the top of the first support plate 5. Since the first support seat 51 is distributed on one side of the exhaust adapter tube 100, the limited support can be achieved according to the shape of the exhaust adapter tube 100. On the basis of the support and limitation of the first support seat 51, the second push rod 42 and the third push rod 49 on the top of the seat body 41 respectively drive the connecting rod 43 and the sliding frame 410 to slide, so that the connecting rod 43 drives the slide plate 44 to slide along the slide rod 46, and the slide plate 44 drives the first The plug body 45 is pressed and sealed at one end of the exhaust transfer tube 100. At this time, the interior of the exhaust transfer tube 100 is connected to the interior of the intake pipe 47 through the first plug body 45 and the hose 48, and the second plug body 411 is driven by the sliding frame 410 to seal the other end of the exhaust transfer tube 100. Since the first plug body 45 and the second plug body 411 are coaxially arranged at the two ends of the exhaust transfer tube 100, respectively, the two ends of the exhaust transfer tube 100 can be quickly sealed, and in the clamping and sealing process, the first support seat 51 located on the outside of the exhaust transfer tube 100 plays a stabilizing role to prevent the exhaust transfer tube 100 from being unstable due to its irregular shape. After the exhaust transfer tube 100 is installed, the first push rod 24 drives the driving plate 25 to descend, so that the driving plate 25 drives the lifting plate 2 to move downward, and the side plates 21 on both sides drive the rotating assembly 3 to move toward the inside of the detection box 1, and the entire rotating assembly 3 is located below the liquid surface. At this time, the inflatable device connected to the air inlet pipe 47 is used to inflate the exhaust transfer tube 100, and the sealing performance is judged by observing the bubble generation on the top and outside of the exhaust transfer tube 100. At this time, since the bottom of the exhaust transfer tube 100 is blocked by the first supporting plate 5 and is not conducive to observation, the motor 29 drives the gear 28 to rotate, so that the gear 28 drives the tooth plate 34 to rotate, and the tooth plate 3 is used to rotate. 4 drives one of the driving plates 33 to rotate, so that the driving plates 33 on both sides drive the slip ring 35 to rotate on the outside of the limiting plate 7, so that the sealing component 4 and the exhaust transfer tube 100 clamped therein are turned over by the rotating component 3. During the turning over process, the second supporting plate 6 located on one side of the second rotating plate 32 will first cooperate with the top of the exhaust transfer tube 100 to achieve limiting support, and then the first supporting plate 5 on the outside of the exhaust transfer tube 100 will be separated, so that the first supporting plate 5 and the second supporting plate 6 are automatically replaced to support and limit the exhaust transfer tube 100, so as to ensure that the exhaust transfer tube 100 maintains sealing stability during and after the turning over process.

[0041] The advantages are as follows: by setting the first support plate 5 to limit the exhaust transfer tube 100, the exhaust transfer tube 100 of different shapes can be stably supported before sealing and installation, so that the two ends of the exhaust transfer tube 100 can be limited, and it is convenient to seal the two ends of the exhaust transfer tube 100 through the sealing component 4 later; by setting the lifting plate 2 to drive the side plates 21 on both sides to move up and down, the side plates 21 can be used to drive the exhaust transfer tube 100 clamped by the sealing component 4 on the inner side of the rotating component 3 to move to the inside of the detection box 1 for leak detection; by setting the rotating component 3 to drive the exhaust transfer tube 100 to rotate, the exhaust transfer tube 100 can be lifted and reset after the first leak detection, and then the exhaust transfer tube 100 can be driven to rotate and turn over by the rotating component 3, so that the side blocked by the first support plate 5 can be rotated to the top, which is convenient for observation during leak detection; by setting the first support plate 5 and the second support plate 6 to alternately support and limit the bottom and top of the exhaust transfer tube 100, the stability of the exhaust transfer tube 100 during the turning process can be ensured.

[0042] When the rotating assembly 3 in the hydrogen pipeline exhaust leak detection device for the hydrogen fuel cell vehicle of the present application drives the exhaust transfer tube 100 to turn over for leak detection, first, the sliding ring 35 is driven by the driving plate 33 to rotate around the outer side of the limiting plate 7. At this time, the driving plate 33 drives the first rotating plate 31 and the second rotating plate 32 to rotate between the limiting plates 7 on both sides. During the rotation of the first rotating plate 31 and the second rotating plate 32, the first sliding pin body 52 and the second sliding pin body 62 on both sides of the first supporting plate 5 and the second supporting plate 6 will be driven to slide in the slide groove structure on the inner side of the limiting plate 7; The second slide pin 62 is pressed against the first support plate 50 and the second support plate 63 is pressed against the first support plate 50. The second slide pin 62 is pressed against the first support plate 50 and the second support plate 63 is pressed against the second support plate 50.

[0043] Its advantage is that the exhaust transfer tube 100 is turned over by rotating the rotating component 3, so that the two sides of the exhaust transfer tube 100 are respectively turned toward the top for leak detection, so as to observe the sealing performance of the exhaust transfer tube 100 and ensure that the exhaust transfer tube 100 can be fully leak-checked; by arranging a slide groove structure on the inner side of the limit plate 7, the first support plate 5 and the second support plate 6 automatically and alternately support and limit the two sides of the exhaust transfer tube 100 under the action of the slide groove structure, so as to ensure the stability of the sealing component 4 clamping and sealing the exhaust transfer tube 100.

[0044] In practical applications, the first supporting plate 5 supports and limits the exhaust transfer tube 100 in the following manner: In order to facilitate the clamping and sealing of the exhaust adapter tube 100 with the end tilted downward (that is, the sealing component 4 needs to provide a corresponding clamping force tilted upward, otherwise the exhaust adapter tube 100 will be lifted away from the inner side of the first support seat 51 due to the upward thrust), when the exhaust adapter tube 100 is installed corresponding to the first support seat 51 (at this time, the pressure plate 81 on the outer side of the first support seat 51 is in a vertical state, and the baffle plate 82 is in a horizontal state and located on the inner side of the first support seat 51), under the downward pressure of the exhaust adapter tube 100, the baffle plate 82 drives the pressure plate 81 to rotate downward around the pin shaft 83. During the rotation process, the end of the pressure plate 81 The clamping block 85 will be squeezed to slide horizontally on the top of the connecting block 86. The horizontal sliding of the clamping block 85 will push the connecting rod 853 to rotate around the fixed axis 855 through the third sliding pin body 852, so that the connecting rod 853 compresses the elastic member 856. When the pressure plate 81 is located at the top of the exhaust transfer tube 100, the connecting rod 853 pushes the clamping block 85 to reset horizontally under the action of the elastic member 856, so as to limit the top of the pressure plate 81. At this time, the exhaust transfer tube 100 will push the pressure plate 81 upward when it is subjected to an oblique upward thrust, and the pressure plate 81 can be prevented from rotating upward under the action of the clamping block 85, so as to limit the top of the exhaust transfer tube 100. After leak detection on one side, as the rotating assembly 3 drives the first supporting plate 5 and the second supporting plate 6 to gradually rotate, the first supporting seat 51 drives the guide groove 811 at the bottom of the connecting plate 810 to rotate. Before the second supporting plate 6 is not supported by the exhaust transfer tube 100, the guide groove 811 uses the bottom inclined surface to prevent the slider 812 from sliding. When the second supporting plate 6 and the exhaust transfer tube 100 cooperate with each other, the bottom inclined surface of the guide groove 811 is parallel to the horizontal plane. As the rotating assembly 3 continues to rotate, the slider 812 can slide along the guide groove 811 by its own gravity, so that the slider 812 drives the fourth sliding pin 813 to slide along the fourth sliding hole 814, and then pushes the connecting rod 853 to compress the elastic member 856, so that the connecting rod 853 drives the block 85 to release the limit on the top of the pressure plate 81 before the first supporting seat 51 and the exhaust transfer tube 100 are separated from each other. At this time, the tube body is limited by the pressure plate 81 at the top of the second supporting seat 61 to ensure the stability of the exhaust transfer tube 100. When the other side of the exhaust transfer pipe 100 is leak-checked and material is unloaded, the first rotating plate 31 and the second rotating plate 32 are driven to reverse, so that the first support plate 5 and the second support plate 6 are automatically reset to the initial state under the action of the limit plate 7. At the same time, during the reversal process, the pressure plate 81 is in a vertical state due to automatic gravity. At this time, the pressure plate 81 is adsorbed by the adsorption member 89 on the outside of the fixed plate 88 to ensure that the pressure plate 81 is in a vertical state after the first support seat 51 is reset, so that the baffle 82 at one end of the pressure plate 81 is horizontally located on the inner side of the first support seat 51 to ensure the stability of the reset of the pressure plate 81. At the same time, the slider 812 slides along the bottom inclined surface of the guide groove 811 by its own gravity, so that the slider 812 automatically moves away from the connecting rod 853, releasing the compression action of the connecting rod 853 on the elastic member 856, and realizing the automatic reset function of the block 85.

[0045] It is worth mentioning that the above support and limiting method has the following advantages: Advantage 1: By setting the pressure plate 81 and the baffle plate 82 perpendicular to each other, the baffle plate 82 drives the pressure plate 81 to rotate automatically under the action of the pressure generated when the exhaust adapter tube 100 is loaded, so that the other end of the pressure plate 81 squeezes the block 85 to make way and engage and press on the top of the exhaust adapter tube 100, so as to ensure that the end of the exhaust adapter tube 100 can maintain contact with the first support seat 51 when it is pushed upward by the sealing component 4.

[0046] Advantage two, by setting a pin shaft 83, the pressure plate 81 and the baffle plate 82 which are set perpendicular to each other are rotatably installed on the outside of the first support seat 51, so that the pressure plate 81 can automatically be reset to a vertical state by relying on its own gravity when the rotating component 3 is reversed and reset, and the pressure plate 81 is adsorbed by the adsorption member 89 to ensure the stability of the pressure plate 81 during the resetting process.

[0047] Advantage three, by setting the clamping block 85 to clamp the pressure plate 81, it can prevent the exhaust transfer pipe 100 from being separated from the support limit of the first support seat 51 when it is subjected to an inclined upward thrust, and the clamping block 85 will automatically give way when squeezed by the pressure plate 81, and will automatically reset after giving way, making the clamping operation at the end of the pressure plate 81 more convenient.

[0048] Advantage four, by rotating the connecting rod 853, the block 85 is driven to slide horizontally, so that the block 85 can slide stably along the pin 87, and the other end of the connecting rod 853 is supported by the elastic member 856, which is used to drive the block 85 to automatically reset. After the second support plate 6 is engaged with the outside of the exhaust transfer tube 100, the connecting rod 853 will automatically compress the elastic member 856 to release the limitation of the block 85 on the pressure plate 81, so that the first support plate 5 can be smoothly separated from the exhaust transfer tube 100 during the subsequent rotation process.

[0049] Advantage five, by sliding the slider 812, the bottom of the slider 812 is tilted upward toward the connecting rod 853, so that the slider 812 cannot slide before the second support plate 6 and the exhaust adapter tube 100 are not matched. When the two are matched, the bottom of the guide groove 811 is in a horizontal state. In the subsequent rotation process, the slider 812 can rely on automatic gravity to slide along the guide groove 811 to the outside of the connecting rod 853 to tighten it, so that the connecting rod 853 drives the block 85 to automatically release the limit on the top of the pressure plate 81.

[0050] Advantage six: by setting the slider 812 and the bottom of the guide groove 811 at an angle, the slider 812 can slide downward along the inclined surface at the bottom of the guide groove 811 by its own gravity after the rotating component 3 is reversed and reset, thereby achieving the effect of continuous use.

[0051] In addition, in the above technical solution, when the rotating assembly 3 drives the exhaust transfer tube 100 to rotate, the second support seat 61 first approaches the exhaust transfer tube 100. At this time, the exhaust transfer tube 100 is still pressed by the pressing assembly 8 on the side of the first support seat 51. The exhaust transfer tube 100 gradually squeezes the baffle 82 on the side of the second support seat 61, so that the pressing plate 81 on the side of the second support seat 61 presses the exhaust transfer tube 100. At the same time, the block 85 on the side of the first support seat 51 automatically releases the constraint on the exhaust transfer tube 100 under the action of the corresponding slider 812, which facilitates the separation of the first support plate 5. That is, during the detection process, the exhaust transfer tube 100 is always pressed by the pressing assembly 8 (on the side of the first support seat 51 or the second support seat 61), so as to prevent the exhaust transfer tube 100 from being separated from the corresponding side of the first support seat 51 or the second support seat 61 during the detection process.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle, comprising a detection box (1), wherein a detection medium is arranged in the detection box (1), and wherein: Also includes: A lifting plate (2) is arranged on the top of the detection box (1) in a vertically sliding manner, and side plates (21) are provided on both sides of the lifting plate (2); A rotating assembly (3) is disposed between the two side plates (21) and is used to drive the exhaust transfer tube (100) to perform a flip detection; the rotating assembly (3) comprises a first rotating plate (31) and a second rotating plate (32); A sealing component (4) is arranged on the inner side of the rotating component (3) and is used for sealing the two ends of the exhaust gas transfer tube (100) to be detected; A first supporting plate (5) is slidably disposed on one side of the first rotating plate (31) and is used to support one side of the exhaust transfer tube (100) when the side plate (21) drives the rotating assembly (3) and the exhaust transfer tube (100) to be immersed in the detection medium; The second support plate (6) is slidably disposed on one side of the second rotating plate (32) and is used to support the other side of the exhaust transfer tube (100) after the rotating assembly (3) drives the exhaust transfer tube (100) to turn over and rotate.

2. The hydrogen pipeline exhaust leak detection device for hydrogen fuel cell vehicles according to claim 1 is characterized in that: The sealing assembly (4) comprises: A seat body (41) is fixedly arranged between the first rotating plate (31) and the second rotating plate (32); A plurality of first plug bodies (45) are provided, and the plurality of first plug bodies (45) are provided corresponding to the plurality of exhaust transfer tubes (100), and the first plug bodies (45) are driven to move toward the corresponding exhaust transfer tubes (100); An air inlet pipe (47) connected to one side of the first plug body (45) and used for charging air into the interior of the corresponding exhaust transfer pipe (100) through the first plug body (45); A plurality of second plug bodies (411) are provided, and the plurality of second plug bodies (411) are provided corresponding to the plurality of exhaust transfer tubes (100), and the second plug bodies (411) are driven to move toward the corresponding exhaust transfer tube (100) to seal one end of the exhaust transfer tube (100).

3. The hydrogen pipeline exhaust leak detection device for hydrogen fuel cell vehicles according to claim 1, characterized in that: An array of first support seats (51) is provided on one side of the first support plate (5) corresponding to the exhaust transfer pipe (100); An array of second support seats (61) is provided on one side of the second support plate (6) corresponding to the exhaust transfer pipe (100); The first support seat (51) and the second support seat (61) are staggered and are used to support the exhaust transfer pipe (100).

4. The hydrogen pipeline exhaust leak detection device for hydrogen fuel cell vehicles according to claim 1, characterized in that: It also includes a limiting plate (7), wherein two limiting plates (7) are provided, and the two limiting plates (7) are fixedly connected to the corresponding side plates (21); A slide groove structure is provided on one side of the limiting plate (7) for driving the first supporting plate (5) and the second supporting plate (6) to alternately support and limit the exhaust transfer pipe (100) during the rotation process; A first sliding pin body (52) is fixed on one side of the first support plate (5), and a second sliding pin body (62) is fixed on one side of the second support plate (6); the first sliding pin body (52) and the second sliding pin body (62) are both slidably arranged in the slide groove structure.

5. The hydrogen pipeline exhaust leak detection device for hydrogen fuel cell vehicles according to claim 4, characterized in that: Both sides of the first rotating plate (31) and the second rotating plate (32) are fixedly connected to driving plates (33), and one side of the driving plate (33) is fixedly provided with a slip ring (35); The slip ring (35) is rotatably arranged on one side of the corresponding limiting plate (7).

6. The hydrogen pipeline exhaust leak detection device for hydrogen fuel cell vehicles according to claim 4, characterized in that: The slide groove structure comprises a first slide groove (72) and a second slide groove (73), and a third slide groove (74) and a fourth slide groove (75) are respectively provided at one end of the first slide groove (72) and the second slide groove (73); The first sliding pin body (52) is slidably disposed inside the first sliding groove (72) and the third sliding groove (74); The second sliding pin body (62) is slidably arranged inside the second sliding groove (73) and the fourth sliding groove (75).

7. The hydrogen pipeline exhaust leak detection device for hydrogen fuel cell vehicles according to claim 6, characterized in that: The first slide groove (72) and the fourth slide groove (75) are arc-shaped grooves of equal diameter; The second sliding groove (73) and the third sliding groove (74) are arc-shaped grooves with variable diameters.

8. The hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle according to claim 3, characterized in that: It also includes a clamping assembly (8), wherein the clamping assembly (8) is arranged on the outside of the first support seat (51) and the second support seat (61); Wherein, the pressing assembly (8) comprises: A pressure plate (81) is rotatably disposed on one side of a shaft seat (84) via a pin shaft (83), and the shaft seat (84) is fixedly disposed on a side corresponding to the first support seat (51) or the second support seat (61); The baffle plate (82) is fixedly connected to one end of the pressing plate (81) close to the pin shaft (83), and the baffle plate (82) and the pressing plate (81) are arranged vertically. When the baffle plate (82) is squeezed by the exhaust transfer pipe (100), it can drive the pressing plate (81) to rotate.

9. The hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle according to claim 8, characterized in that: The pressing assembly (8) further comprises: A clamping block (85) is slidably disposed on the top of a connecting block (86); the connecting block (86) is fixedly disposed on a side corresponding to the first supporting seat (51) or the second supporting seat (61); the clamping block (85) is pressed by the pressure plate (81) and can slide along the top of the connecting block (86); and when the pressure plate (81) is separated from the clamping block (85), the clamping block (85) can be reset to the top of the pressure plate (81).

10. The hydrogen pipeline exhaust leak detection device for hydrogen fuel cell vehicles according to claim 9, characterized in that: The outer side of the connecting block (86) is rotatably connected to a connecting rod (853) via a fixed shaft (855); One end of the connecting rod (853) is slidably connected to the clamping block (85); The other end of the connecting rod (853) is provided with an elastic member (856) for driving the clamping block (85) to automatically reset, and the elastic member (856) is arranged on a side corresponding to the first supporting seat (51) or the second supporting seat (61).

11. The hydrogen pipeline exhaust leak detection device for hydrogen fuel cell vehicles according to claim 9, characterized in that: The pressing assembly (8) further comprises a connecting plate (810), wherein the connecting plate (810) is fixedly arranged on one side of the connecting block (86); A guide groove (811) is provided on one side of the connecting plate (810), and a sliding block (812) is arranged in the guide groove (811).

12. The hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle according to claim 8, characterized in that: The pressing assembly (8) further comprises: A fixing plate (88) disposed on one side of the shaft seat (84); The adsorption member (89) is connected to one side of the fixing plate (88), and the adsorption member (89) is capable of adsorbing the pressing plate (81) so that the pressing plate (81) is attached to one side of the fixing plate (88).

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