Hydrogen pipeline exhaust leak detection device for hydrogen fuel cell vehicles

Abstract

The present invention relates to the technical field of vehicle detection, and discloses a hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle, including a detection box, in which a detection medium is configured. The device further includes: a lifting plate, slidably arranged vertically at the top of the detection box, and side plates are arranged on both sides of the lifting plate; a rotating assembly, arranged between the two side plates, for driving the exhaust rotating pipe to perform a turnover detection; the rotating assembly includes a first rotating plate and a second rotating plate; a sealing assembly, arranged inside the rotating assembly, for sealing both ends of the exhaust rotating pipe to be detected. This hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle can effectively solve the problem in the prior art that it is difficult to seal and clamp the pipe orifices of bent pipes by the opposite clamping and sealing method, resulting in the inconvenience of leak detection for the exhaust rotating pipe of the bent pipe type.

Description

Technical Field

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

[0002] An exhaust adapter, also known as an exhaust pipe connection or an exhaust pipe adapter, is an important component in an automotive exhaust system; its main function is to guide the exhaust gas discharged from the engine from the engine exhaust port to the exhaust pipe, ensuring that the exhaust gas can be smoothly discharged outside the vehicle; if there is a leak in the exhaust adapter, it may lead to poor exhaust, affect the engine performance, and even increase the emission of harmful substances in the exhaust gas; in addition, the leak may also cause noise and vibration problems, affecting the comfort of the vehicle.

[0003] When detecting leaks in a traditional exhaust adapter, it is necessary to seal and clamp the pipe orifice of the adapter through a seal, then place the adapter below the liquid level, and inflate and pressurize the inside of the adapter through one of the pipe orifices, and judge the sealing performance of the adapter according to the bubble situation in the liquid; among them, when performing the seal and clamp, the pipe orifice is usually sealed by two seals with reverse pressure, and this sealing method is easier to seal the pipe orifice of a straight adapter due to the parallel clamping direction; however, in actual use, there are also elbow-shaped exhaust adapters (such as L-shaped, Z-shaped, etc.), and the traditional opposite clamping and sealing method is difficult to seal and clamp the pipe orifice of the elbow, resulting in inconvenience in leak detection for elbow-shaped exhaust adapters. Summary of the Invention

[0004] Aiming at the above-mentioned shortcomings of the existing technology, 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 existing technology that the opposite clamping and sealing method is difficult to seal and clamp the pipe orifice of the elbow, resulting in inconvenience in leak detection for elbow-shaped exhaust adapters.

[0005] To achieve the above object, the present invention is realized through the following technical solutions:

[0006] The present invention provides a hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle, including a detection box, in which a detection medium is configured, and further including:

[0007] A lifting plate, slidably arranged vertically at the top of the detection box, and side plates are arranged on both sides of the lifting plate;

[0008] A rotating assembly, arranged between the two side plates, for driving the exhaust adapter to perform a turning detection; the rotating assembly includes a first rotating plate and a second rotating plate;

[0009] A sealing assembly, arranged inside the rotating assembly, for sealing both ends of the exhaust adapter to be detected;

[0010] The first support plate member is slidably arranged on one side of the first rotating plate and is used to support one side of the exhaust rotating pipe when the side plate drives the rotating assembly and the exhaust rotating pipe to be immersed in the detection medium;

[0011] The second support plate member is slidably arranged on one side of the second rotating plate and is used to support the other side of the exhaust rotating pipe after the rotating assembly drives the exhaust rotating pipe to turn over.

[0012] Further, the sealing assembly includes:

[0013] A seat body, fixedly arranged between the first rotating plate and the second rotating plate;

[0014] There are several first plug bodies, and the several first plug bodies are arranged corresponding to the several exhaust rotating pipes. The first plug body can be driven to move towards the corresponding exhaust rotating pipe;

[0015] An air inlet pipe is connected to one side of the first plug body and is used to inflate the corresponding exhaust rotating pipe through the first plug body;

[0016] There are several second plug bodies, the several second plug bodies are arranged corresponding to the several exhaust rotating pipes, and the second plug body can be driven to move towards the corresponding exhaust rotating pipe to block one end of the exhaust rotating pipe.

[0017] Further, several groups of first support seats are arranged corresponding to the exhaust rotating pipe on one side of the first support plate member;

[0018] Several groups of second support seats are arranged corresponding to the exhaust rotating pipe on one side of the second support plate member;

[0019] The first support seat and the second support seat are arranged in a staggered manner to support the exhaust rotating pipe.

[0020] Further, it further includes a limit disc. There are two limit discs, and the two limit discs are fixedly connected to the corresponding side plates;

[0021] A chute structure is arranged on one side of the limit disc and is used to drive the first support plate member and the second support plate member to alternately support and limit the exhaust rotating pipe during the rotation process;

[0022] Wherein, a first sliding pin body is fixed on one side of the first support plate member, a second sliding pin body is fixedly arranged on one side of the second support plate member, and both the first sliding pin body and the second sliding pin body are slidably arranged in the chute structure.

[0023] Further, driving plates are fixedly connected to both sides of the first rotating plate and the second rotating plate, and a sliding ring is fixedly arranged on one side of the driving plate;

[0024] The slip ring is rotatably arranged on one side of the corresponding limit disc.

[0025] Further, the chute structure includes a first chute and a second chute, and a third chute and a fourth chute are respectively arranged at one ends of the first chute and the second chute;

[0026] The first sliding pin body is slidably arranged inside the first chute and the third chute;

[0027] The second sliding pin body is slidably arranged inside the second chute and the fourth chute.

[0028] Further, the first chute and the fourth chute are equal-diameter arc-shaped chutes;

[0029] The second chute and the third chute are variable-diameter arc-shaped chutes.

[0030] Further, it further includes a pressing component, and the pressing component is arranged outside the first support seat and the second support seat;

[0031] Wherein, the pressing component includes:

[0032] A pressing 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 of the corresponding first support seat or the second support seat;

[0033] A baffle plate is fixedly connected to one end of the pressing plate close to the pin shaft, and the baffle plate is perpendicular to the pressing plate. When the baffle plate is squeezed by the exhaust adapter pipe, the pressing plate can be driven to rotate.

[0034] Further, the pressing component further includes:

[0035] A clamping block is slidably arranged at the top of a connecting block, the connecting block is fixedly arranged on one side of the corresponding first support seat or the second support seat, the clamping block can slide along the top of the connecting block under the extrusion of the pressing plate, and when the pressing plate disengages from the clamping block, the clamping block can reset to the top of the pressing plate.

[0036] Further, a connecting rod is rotatably connected to the outside of the connecting block through a fixed shaft;

[0037] One end of the connecting rod is slidably connected to the clamping block;

[0038] The other end of the connecting rod is provided with an elastic member for driving the clamping block to automatically reset, and the elastic member is arranged on one side of the corresponding first support seat or the second support seat.

[0039] Further, the pressing component further includes a connecting plate, and the connecting plate is fixedly arranged on one side of the connecting block;

[0040] A guide groove is formed on one side of the connecting plate, and a slider is arranged in the guide groove.

[0041] Further, the pressing assembly further includes:

[0042] A fixing plate disposed on one side of the shaft seat;

[0043] An adsorbing member connected to one side of the fixing plate, and the adsorbing member can adsorb the pressing plate so that the pressing plate fits against one side of the fixing plate.

[0044] The technical solution provided by the present invention has the following beneficial effects compared with the prior art:

[0045] (1) The present invention is provided with a first support plate member to limit and support the exhaust adapter pipe, so that exhaust adapter pipes of different shapes can be stably supported before sealed installation, so as to facilitate the limitation of both ends of the exhaust adapter pipe, and it is convenient to seal both ends of the exhaust adapter pipe through the sealing assembly subsequently.

[0046] (2) By arranging a lifting plate to drive the side plates on both sides to move up and down, the present invention can use the side plates to drive the exhaust adapter pipe clamped inside the rotating assembly through the sealing assembly to move into the interior of the detection box for leak detection.

[0047] (3) By arranging a rotating assembly to drive the exhaust adapter pipe to rotate, the present invention can lift and reset the exhaust adapter pipe after the first leak detection, and then drive the exhaust adapter pipe to rotate and turn over through the rotating assembly, so as to turn the side blocked by the first support plate member to the top, which is convenient for observation during leak detection.

[0048] (4) By arranging the first support plate member and the second support plate member to alternately support and limit the bottom and top of the exhaust adapter pipe, the present invention can ensure the stability of the exhaust adapter pipe during the turnover process. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0050] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0051] Figure 2 It is a top structural schematic diagram of an embodiment of the present invention;

[0052] Figure 3 It is a front structural schematic diagram of an embodiment of the present invention;

[0053] Figure 4Structural schematic diagram of the feeding side of the rotating component in the embodiment of the present invention;

[0054] Figure 5 Structural schematic diagram of the back of the rotating component in the embodiment of the present invention;

[0055] Figure 6 Structural schematic diagram of the rotating component and the sealing component in the embodiment of the present invention;

[0056] Figure 7 Structural schematic diagram of the sealing component in the embodiment of the present invention;

[0057] Figure 8 Structural schematic diagram of the first support plate member and the second support plate member in the embodiment of the present invention;

[0058] Figure 9 Structural schematic diagram of the limiting disc in the embodiment of the present invention;

[0059] Figure 10 Structural schematic diagram of the pressing component in the embodiment of the present invention.

[0060] The reference numerals in the figure respectively represent: 100, exhaust rotary adapter;

[0061] 1, detection box; 11, vertical plate; 12, top plate; 13, first sliding hole; 14, limiting groove;

[0062] 2, lifting plate; 21, side plate; 22, vertical slide rail; 23, vertical sliding sleeve; 24, first push rod; 25, driving plate; 26, horizontal slide rail; 27, horizontal sliding sleeve; 28, gear; 29, motor;

[0063] 3, rotating component; 31, first rotating plate; 32, second rotating plate; 33, driving plate; 34, toothed plate; 35, slip ring; 36, bracket; 37, roller;

[0064] 4, sealing component; 41, seat body; 42, second push rod; 43, connecting rod; 44, sliding plate; 45, first plug body; 46, sliding rod; 47, intake pipe; 48, hose; 49, third push rod; 410, sliding frame; 411, second plug body;

[0065] 5, first support plate member; 51, first support seat; 52, first sliding pin body; 53, first limiting rod;

[0066] 6, second support plate member; 61, second support seat; 62, second sliding pin body; 63, second limiting rod;

[0067] 7, limiting disc; 71, connecting member; 72, first chute; 73, second chute; 74, third chute; 75, fourth chute;

[0068] 8. Compression assembly; 81. Pressure 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. Slide block; 813. Fourth sliding pin body; 814. Fourth sliding hole. Detailed implementation manners

[0069] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0070] The present invention will be further described below with reference to the embodiments.

[0071] Please refer to Figures 1 - 10 , the present invention provides a technical solution: a hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle, including a detection box 1, in which a detection medium is contained. In a specific example of the present application, the detection medium is water; vertically arranged plates 11 are symmetrically and fixedly arranged at the top of the detection box 1, and a top plate 12 is fixedly arranged at the top of the vertically arranged plates 11; a lifting plate 2 is movably arranged at the top of the top plate 12, and the lifting plate 2 is driven by a first push rod 24 to be lifted and arranged at the top of the top plate 12, and side plates 21 are fixedly arranged on the outer sides of the lifting plate 2, and the side plates 21 are slidably arranged inside the top plate 12, and first sliding holes 13 corresponding to the side plates 21 are formed inside the top plate 12; a rotating assembly 3 is arranged between the two side plates 21, and the rotating assembly 3 is driven by a motor 29 to be rotatably arranged between the two side plates 21 for driving an exhaust adapter pipe 100 to perform a turning-over detection; a sealing assembly 4 for sealing both ends of the exhaust adapter pipe 100 is arranged inside the rotating assembly 3; a first support plate member 5 and a second support plate member 6 are movably arranged inside the rotating assembly 3, and the first support plate member 5 and the second support plate member 6 are respectively located on both sides of the sealing assembly 4 and are respectively used for supporting and limiting both sides of the exhaust adapter pipe 100. Among them, the first support plate member 5 is used for supporting one side of the exhaust adapter pipe 100 when the side plates 21 directly drive the rotating assembly 3 and the exhaust adapter pipe 100 to be immersed in the detection medium; the second support plate member 6 is used for supporting the other side of the exhaust adapter pipe 100 when the rotating assembly 3 drives the exhaust adapter pipe 100 to turn over and rotate.

[0072] Among them, the rotating assembly 3 includes a first rotating plate 31 and a second rotating plate 32 respectively used to support the first support plate member 5 and the second support plate member 6. The first rotating plate 31 and the second rotating plate 32 are fixedly arranged on the outer side of the sealing assembly 4. When the first rotating plate 31 and the second rotating plate 32 are driven by an external force to rotate, they drive the first support plate member 5 and the second support plate member 6 to alternately support and limit both sides of the exhaust rotary adapter 100.

[0073] Specifically, the first push rod 24 is fixedly arranged inside 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 outside the side plate 21; in actual use, due to the relatively large height of the rotating assembly 3, the rotating assembly 3 increases the occupation of the horizontal space during rotation, indirectly causing the side of the sealing assembly 4 away from the loading and unloading to be inconvenient for loading and unloading the exhaust rotary adapter 100. To solve this problem, brackets 36 are symmetrically and fixedly arranged on the outer sides of the first rotating plate 31 and the second rotating plate 32, rollers 37 are rotatably arranged on the outer sides of the brackets 36, the rollers 37 are located inside the vertical plate 11, and limiting grooves 14 corresponding to the moving tracks of the rollers 37 are arranged inside the vertical plate 11 for guiding the rollers 37 to rotate from one side of the detection box 1 to the other side. During this process, the side plate moves along the first sliding hole 13, so that the rollers 37 push the rotating assembly 3 and the sealing assembly 4 inside it to automatically approach the side of the loading and unloading after each rotation.

[0074] In addition, in order to ensure the stable movement of the rotating assembly 3, a driving plate 25 is fixedly arranged at the driving end of the first push rod 24, transverse sliding rails 26 are fixedly arranged at both ends of the driving plate 25, transverse sliding sleeves 27 are slidably arranged on the outer sides of the transverse sliding rails 26, the transverse sliding sleeves 27 are fixedly arranged at the bottom of the lifting plate 2, and a vertical sliding rail 22 is fixedly arranged outside the side plate 21, a vertical sliding sleeve 23 is slidably arranged on the outer side of the vertical sliding rail 22, and the vertical sliding sleeve 23 is horizontally slidably arranged inside the detection box 1.

[0075] The sealing assembly 4 includes a seat body 41, a first plug body 45, an air inlet 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 rotary adapter 100 and is driven by an external force to seal and clamp the end of the exhaust rotary adapter 100; the air inlet pipe 47 is used to inflate the inside of the exhaust rotary adapter 100 through the first plug body 45; the second plug body 411 is coaxially arranged with the other end of the exhaust rotary adapter 100 and is driven by an external force to seal and clamp the end of the exhaust rotary adapter 100; among them, a plurality of first plug bodies 45 and second plug bodies 411 are provided, and the plurality of first plug bodies 45 are respectively communicated with the inside of the air inlet pipe 47 through hoses 48.

[0076] Specifically, a second push rod 42 is fixedly arranged on the outer side of the seat body 41. A connecting rod 43 is fixedly arranged at the driving end of the second push rod 42. Slide plates 44 are evenly and fixedly arranged on the outer side of the connecting rod 43. The slide plates 44 are all slidably arranged on the outer side of the slide rod 46. The slide rod 46 and the intake pipe 47 are both fixedly arranged on the outer side of the seat body 41. First plug bodies 45 are fixedly arranged at the other ends of the slide plates 44. One end of the first plug body 45 far away from the exhaust adapter 100 is communicated with the inside of the intake pipe 47 through a hose 48. And a third push rod 49 is fixedly arranged on the outer side of the seat body 41. A sliding frame 410 is fixedly arranged at the driving end of the third push rod 49. The sliding frame 410 is slidably arranged on the outer side of the seat body 41. A second plug body 411 is fixedly arranged on one side of the sliding frame 410 close to the exhaust adapter 100 and corresponding to the port of the exhaust adapter 100.

[0077] In the above technical solution, the first push rod 24, the second push rod 42 and the third push rod 49 are power components with a linear stroke. In actual work, the first push rod 24, the second push rod 42 and the third push rod 49 can be selected from one of a linear guide rail, a pneumatic push rod, an electric push rod or a hydraulic push rod.

[0078] A first support seat 51 is fixedly arranged on one side of the first support plate member 5. There are several first support seats 51 corresponding to each exhaust adapter 100. The several first support seats 51 are distributed on one side of the exhaust adapter 100 and are arranged corresponding to the exhaust adapter 100. A second support seat 61 is fixedly arranged on one side of the second support plate member 6. There are several second support seats 61 corresponding to the first support seats 51. The second support seats 61 are located on one side of the first support seats 51 and are arranged corresponding to the exhaust adapter 100. Among them, the first support seats 51 and the second support seats 61 are arranged in a staggered manner.

[0079] The hydrogen pipeline exhaust leak detection device described in this embodiment further includes two limit discs 7. A chute structure is arranged inside the limit discs 7 for driving the first support plate member 5 and the second support plate member 6 to alternately support and limit the exhaust adapter 100 during the rotation process. The two limit discs 7 are respectively fixedly connected to the side plates 21 on both sides through the connecting pieces 71 on the outer sides; Driving plates 33 are fixedly arranged on both sides of the first rotating plate 31 and the second rotating plate 32. Slide rings 35 are fixedly arranged on the outer sides of the driving plates 33. The slide rings 35 are rotatably arranged on the outer sides of the limit discs 7.

[0080] Among them, first slide pin bodies 52 are fixedly arranged on both sides of the first support plate member 5, second slide pin bodies 62 are fixedly arranged on both sides of the second support plate member 6, the first slide pin bodies 52 and the second slide pin bodies 62 are slidably arranged inside the chute structure, first limiting rods 53 and second limiting rods 63 are fixedly arranged on the sides of the first support plate member 5 and the second support plate member 6 away from each other respectively, and the first limiting rods 53 and the second limiting rods 63 are slidably connected to the first rotating plate 31 and the second rotating plate 32 respectively; and a toothed plate 34 is fixedly arranged on the outside of one of the driving plates 33, the toothed plate 34 is meshed with a gear 28 on the outside, and the gear 28 is fixedly arranged on the driving end of the motor 29.

[0081] Specifically, the chute structure includes a first chute 72 and a second chute 73, the first chute 72 is an equal-diameter arc chute, and the second chute 73 is a variable-diameter arc chute; the central angles corresponding to the first chute 72 and the second chute 73 are equal, a third chute 74 and a fourth chute 75 are respectively arranged at one ends of the first chute 72 and the second chute 73, the third chute 74 is a variable-diameter arc chute, and the fourth chute 75 is an equal-diameter arc chute; wherein, the first slide pin body 52 is slidably arranged inside the first chute 72 and the third chute 74, and the second slide pin body 62 is slidably arranged inside the second chute 73 and the fourth chute 75.

[0082] In addition, the hydrogen pipeline exhaust leak detection device of the hydrogen fuel cell vehicle further includes a pressing component 8, the pressing component 8 is arranged outside the first support seat 51 and the second support seat 61, the pressing component 8 includes a pressing plate 81, a baffle 82 and a clamping block 85, the pressing plate 81 is rotatably arranged outside a shaft seat 84 through a pin shaft 83 at one end, and the shaft seat 84 is fixedly arranged outside the corresponding first support seat 51 or the second support seat 61; the baffle 82 is fixedly arranged at one end of the pressing plate 81 close to the pin shaft 83 and is perpendicular to the pressing plate 81, and drives the pressing plate 81 to rotate and press under the pressure of the exhaust adapter pipe 100; the clamping block 85 is slidably arranged on the top of a connecting block 86, the connecting block 86 is fixedly arranged outside the corresponding first support seat 51 or the second support seat 61, the clamping block 85 slides horizontally under the extrusion of the pressing plate 81 and automatically resets to the top of the pressing plate 81; a fixing plate 88 is fixedly arranged outside the shaft seat 84, and an adsorbing member 89 for adsorbing the pressing plate 81 is fixedly arranged inside the fixing plate 88.

[0083] In the above technical solution, the adsorbing 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 the due meaning and will not be elaborated here.

[0084] The pressing assembly 8 further includes a connecting plate 810 fixedly arranged on the outer side of the connecting block 86. A guiding groove 811 is fixedly arranged at the bottom of the connecting plate 810, and a sliding block 812 is slidably arranged inside the guiding groove 811. Wherein, a connecting rod 853 is rotatably connected to the outer side of the connecting block 86 through a fixed shaft 855. A third sliding hole 854 is formed in the inner side of one end of the connecting rod 853, and a third sliding pin body 852 is slidably arranged inside the third sliding hole 854. The third sliding pin body 852 is fixedly arranged on the outer side of the clamping block 85. A second sliding hole 851 is formed in the inner side of the clamping block 85, and a pin post 87 is slidably arranged inside the second sliding hole 851. The pin post 87 is fixedly arranged on the top of the connecting block 86. An elastic member 856 for driving the clamping block 85 to automatically reset is arranged at the other end of the connecting rod 853, and the elastic member 856 is arranged on the outer side of the first support seat 51. Specifically, the bottom of the sliding block 812 cooperates with the inner side of the guiding groove 811. A fourth sliding pin body 813 is fixedly arranged on the outer side of the sliding block 812, and fourth sliding holes 814 for the fourth sliding pin body 813 to slide through are formed on both sides of the guiding groove 811.

[0085] Principle and advantages of the hydrogen pipeline exhaust leak detection device for hydrogen fuel cell vehicles:

[0086] First, when installing the exhaust adapter 100, place the exhaust adapter 100 on one side of the first support plate member 5. Each exhaust adapter 100 can be supported and limited by the first support seat 51 on the top of the first support plate member 5. Since the first support seats 51 are distributed on one side of the exhaust adapter 100, limit support can be realized according to the shape of the exhaust adapter 100. On the basis of the support and limit of the first support seat 51, drive the connecting rod 43 and the sliding frame 410 to slide respectively through the second push rod 42 and the third push rod 49 on the top of the seat body 41, so that the connecting rod 43 drives the sliding plate 44 to slide along the sliding rod 46, and use the sliding plate 44 to drive the first plug body 45 to tightly seal one end of the exhaust adapter 100. At this time, the inside of the exhaust adapter 100 is communicated with the inside of the air inlet 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 adapter 100. Since the first plug body 45 and the second plug body 411 are coaxially arranged with the two ends of the exhaust adapter 100 respectively, quick sealing of the two ends of the exhaust adapter 100 can be realized, and during the clamping and sealing process, the first support seat 51 located outside the exhaust adapter 100 plays a stabilizing role, preventing the exhaust adapter 100 from being unstably clamped due to irregular shape;

[0087] After the exhaust adapter 100 is installed, the driving plate 25 is driven to descend by the first push rod 24, so that the driving plate 25 drives the lifting plate 2 to move downward, and the side plates 21 on both sides are used to drive the rotating assembly 3 to move into the interior of the detection box 1, and the entire rotating assembly 3 is located below the liquid level. At this time, an inflation device connected through the air inlet pipe 47 inflates the interior of the exhaust adapter 100, and the airtightness is judged by observing the generation of bubbles at the top and outside of the exhaust adapter 100; and at this time, since the bottom of the exhaust adapter 100 is blocked by the first support member 5, it is not conducive to observation. Then, the motor 29 is used to drive the gear 28 to rotate, so that the gear 28 drives the toothed plate 34 to rotate, and the toothed plate 34 is used to drive one of the driving plates 33 to rotate, and the driving plates 33 on both sides drive the slip ring 35 to rotate outside the limit disk 7, realizing that the rotating assembly 3 drives the sealing assembly 4 and the exhaust adapter 100 clamped by it to turn over. During the turning process, the second support member 6 on one side of the second rotating plate 32 will first cooperate with the top of the exhaust adapter 100 to achieve limit support, and then the first support member 5 outside the exhaust adapter 100 will be disengaged, realizing the effect of automatically replacing the first support member 5 and the second support member 6 to support and limit the exhaust adapter 100, so as to ensure the sealing stability of the exhaust adapter 100 during and after the turning process.

[0088] Its advantages are as follows: by setting the first support member 5 to support and limit the exhaust adapter 100, stable support is realized for exhaust adapters 100 of different shapes before airtight installation, so as to facilitate the limitation of both ends of the exhaust adapter 100 and facilitate the subsequent sealing of both ends of the exhaust adapter 100 by the sealing assembly 4; 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 adapter 100 clamped by the sealing assembly 4 inside the rotating assembly 3 to move into the interior of the detection box 1 for leak detection; by setting the rotating assembly 3 to drive the exhaust adapter 100 to rotate, the exhaust adapter 100 can be lifted and reset after the first leak detection, and then the rotating assembly 3 drives the exhaust adapter 100 to rotate and turn over, so as to facilitate the rotation of the side blocked by the first support member 5 to the top for convenient observation during leak detection; by setting the first support member 5 and the second support member 6 to alternately support and limit the bottom and top of the exhaust adapter 100, the stability of the exhaust adapter 100 during the turning process is ensured.

[0089] When the rotating assembly 3 in the hydrogen pipeline exhaust leak detection device of the hydrogen fuel cell vehicle of the present application drives the exhaust rotary joint pipe 100 to turn over for leak detection, first, the slip ring 35 is driven by the driving plate 33 to rotate around the outside of the limiting disc 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 discs 7 on both sides. During the rotation of the first rotating plate 31 and the second rotating plate 32, the first sliding pin bodies 52 and the second sliding pin bodies 62 on both sides of the first support plate member 5 and the second support plate member 6 slide in the chute structures inside the limiting disc 7;

[0090] Specifically, the first sliding pin body 52 and the second sliding pin body 62 first slide along the first chute 72 and the second chute 73 respectively. Under the action of the first chute 72 and the second chute 73, when the first rotating plate 31 and the second rotating plate 32 rotate downward by a certain angle, without the first sliding pin body 52 driving the first support plate member 5 to move, the second sliding pin body 62 drives the second support plate member 6 to approach the outside of the exhaust rotary joint pipe 100. When the second support plate member 6 is supported and cooperates on the outside of the exhaust rotary joint pipe 100, as the first rotating plate 31 and the second rotating plate 32 continue to rotate, the first sliding pin body 52 slides along the third chute 74, thereby driving the first support plate member 5 to disengage from the support and limit of the exhaust rotary joint pipe 100. At this time, the second sliding pin body 62 slides along the fourth chute 75, so that the second support plate member 6 is always located on the outside of the exhaust rotary joint pipe 100. When the exhaust rotary joint pipe 100 is turned over, the second support plate member 6 is located at the bottom of the exhaust rotary joint pipe 100 to support it. Finally, the rotating assembly 3 is driven by the lifting plate 2 to move into the detection box 1 again for leak detection.

[0091] Its advantages are as follows: By driving the exhaust rotary joint pipe 100 to turn over through the rotation of the rotating assembly 3, it is convenient to face both sides of the exhaust rotary joint pipe 100 towards the top for leak detection, so as to observe the sealing performance of the exhaust rotary joint pipe 100 and ensure that the exhaust rotary joint pipe 100 can be comprehensively leak-detected; By arranging chute structures inside the limiting disc 7, under the action of the chute structures, the first support plate member 5 and the second support plate member 6 automatically and alternately support and limit both sides of the exhaust rotary joint pipe 100 to ensure the stability of the clamping and sealing of the exhaust rotary joint pipe 100 by the sealing assembly 4.

[0092] In practical applications, the support and limit method of the first support plate member 5 for the exhaust rotary joint pipe 100:

[0093] In order to facilitate the clamping and sealing of the exhaust adapter pipe 100 with a downwardly inclined end (i.e., the sealing assembly 4 needs to correspondingly provide an upwardly inclined clamping force, otherwise the exhaust adapter pipe 100 will be lifted off the inner side of the first support seat 51 due to the upward thrust), when the exhaust adapter pipe 100 is installed corresponding to the first support seat 51 (at this time, the pressing 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 inside the first support seat 51), under the downward pressure of the exhaust adapter pipe 100, the baffle plate 82 drives the pressing plate 81 to rotate downward around the pin shaft 83. During the rotation process, the end of the pressing plate 81 squeezes the clamping block 85 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 shaft 855 through the third sliding pin body 852, so that the connecting rod 853 compresses the elastic member 856. When the pressing plate 81 is located on the top of the exhaust adapter pipe 100, under the action of the elastic member 856, the connecting rod 853 pushes the clamping block 85 to reset horizontally, realizing the top limit of the pressing plate 81. At this time, when the exhaust adapter pipe 100 is subjected to an upwardly inclined thrust, it will push the pressing plate 81 upward, and the pressing plate 81 can be prevented from rotating upward under the action of the clamping block 85, realizing the top limit of the exhaust adapter pipe 100;

[0094] When leak detection is performed on one side, as the rotating assembly 3 drives the first support plate member 5 and the second support plate member 6 to gradually rotate, the first support seat 51 drives the guide groove 811 at the bottom of the connecting plate 810 to rotate. Before the second support plate member 6 cooperates with the exhaust adapter pipe 100 for support, the guide groove 811 can prevent the slider 812 from sliding by using the bottom inclined surface. When the second support plate member 6 cooperates with the exhaust adapter pipe 100, 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 body 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 clamping block 85 to release the top limit of the pressing plate 81 before the first support seat 51 and the exhaust adapter pipe 100 are separated from each other. At this time, the pressing plate 81 at the top of the second support seat 61 is used to limit the pipe body to ensure the stability of the exhaust adapter pipe 100;

[0095] 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.

[0096] It is worth mentioning that the above support and limiting method has the following advantages:

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] Advantage Five: By sliding the slider 812, the bottom of the slider 812 is inclined upward towards the connecting rod 853, so that the slider 812 cannot slide before the second support plate member 6 and the exhaust rotary joint pipe 100 are engaged. When the two are engaged, the bottom of the guide groove 811 is in a horizontal state. During the subsequent rotation process, the slider 812 can slide along the guide groove 811 to the outside of the connecting rod 853 by its own gravity to press it, so that the connecting rod 853 drives the clamping block 85 to automatically release the limit on the top of the pressing plate 81.

[0102] Advantage Six: By inclining the slider 812 and the bottom of the guide groove 811, after the rotating assembly 3 reversely rotates and resets, the slider 812 can slide downward along the inclined plane at the bottom of the guide groove 811 by its own gravity to reset, achieving the effect of continuous use.

[0103] In addition, in the above technical solution, during the process of the rotating assembly 3 driving the exhaust rotary joint pipe 100 to rotate, the second support seat 61 first approaches the exhaust rotary joint pipe 100. At this time, the exhaust rotary joint pipe 100 is still pressed by the pressing assembly 8 on one side of the first support seat 51. The exhaust rotary joint pipe 100 gradually presses the baffle 82 on one side of the second support seat 61, so that the pressing plate 81 on one side of the second support seat 61 presses the exhaust rotary joint pipe 100. At the same time, the clamping block 85 on one side of the first support seat 51 automatically releases the constraint on the exhaust rotary joint pipe 100 under the action of the corresponding slider 812, facilitating the detachment of the first support plate member 5. That is, during the detection process, the exhaust rotary joint pipe 100 is always pressed by the pressing assembly 8 (on one side of the first support seat 51 or the second support seat 61) to prevent the exhaust rotary joint pipe 100 from detaching from one side of the corresponding first support seat 51 or second support seat 61 during the detection process.

[0104] 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 foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and 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. Hydrogen pipeline exhaust leak detection device for hydrogen fuel cell vehicle, comprising a detection box, wherein a detection medium is arranged in the detection box, characterized in that, Further included are: A lifting plate, which is slidably arranged vertically at the top of the detection box, and side plates are arranged on both sides of the lifting plate; A rotating assembly, which is arranged between the two side plates and is used to drive the exhaust rotary adapter for turning-over detection; the rotating assembly includes a first rotating plate and a second rotating plate; A sealing assembly, which is arranged inside the rotating assembly and is used for sealing both ends of the exhaust rotary adapter to be detected; A first support plate member, which is slidably arranged on one side of the first rotating plate and is used to support one side of the exhaust rotary adapter when the side plate drives the rotating assembly and the exhaust rotary adapter to immerse in the detection medium; and a plurality of groups of first support seats are correspondingly arranged on one side of the first support plate member and the exhaust rotary adapter; A second support plate member, which is slidably arranged on one side of the second rotating plate and is used to support the other side of the exhaust rotary adapter after the rotating assembly drives the exhaust rotary adapter to turn over; and a plurality of groups of second support seats are correspondingly arranged on one side of the second support plate member and the exhaust rotary adapter; A pressing assembly, which is arranged outside the first support seat and the second support seat; Wherein, the pressing assembly includes: A pressing plate, which is rotatably arranged on one side of a shaft seat through a pin shaft, and the shaft seat is fixedly arranged on one side of the corresponding first support seat or second support seat; A baffle plate, which is fixedly connected to one end of the pressing plate close to the pin shaft, and the baffle plate is perpendicular to the pressing plate. When the baffle plate is extruded by the exhaust rotary adapter, it can drive the pressing plate to rotate; A clamping block, which is slidably arranged on the top of a connecting block, and the connecting block is fixedly arranged on one side of the corresponding first support seat or second support seat. The clamping block can slide along the top of the connecting block under the extrusion of the pressing plate, and when the pressing plate disengages from the clamping block, the clamping block can reset to the top of the pressing plate.

2. The hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle according to claim 1, wherein, The sealing assembly includes: A seat body, which is fixedly arranged between the first rotating plate and the second rotating plate; A plurality of first plug bodies, and the plurality of first plug bodies are correspondingly arranged with the plurality of exhaust rotary adapters. The first plug bodies can move towards the corresponding exhaust rotary adapters under drive; An air inlet pipe, which is connected to one side of the first plug body and is used to inflate the corresponding exhaust rotary adapter through the first plug body; A plurality of second plug bodies, the plurality of second plug bodies are correspondingly arranged with the plurality of exhaust rotary adapters, and the second plug bodies can move towards the corresponding exhaust rotary adapters under drive to block one end of the exhaust rotary adapter.

3. The hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle according to claim 1, characterized in that, The first support seat and the second support seat are arranged in a staggered manner to support the exhaust rotary adapter.

4. The hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle according to claim 1, characterized in that, Further included are two limiting disks, and the two limiting disks are fixedly connected to the corresponding side plates; A chute structure is arranged on one side of the limiting disk and is used to drive the first support plate member and the second support plate member to alternately support and limit the exhaust rotary adapter during the rotation process; Wherein, a first sliding pin body is fixed on one side of the first support plate member, a second sliding pin body is fixedly arranged on one side of the second support plate member, and both the first sliding pin body and the second sliding pin body are slidably arranged in the chute structure.

5. The hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle according to claim 4, characterized in that, Driving plates are fixedly connected to both sides of the first rotating plate and the second rotating plate, and a sliding ring is fixedly arranged on one side of the driving plate; The sliding ring is rotatably arranged on one side of the corresponding limiting disk.

6. The hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle according to claim 4, characterized in that, The chute structure includes a first chute and a second chute, and a third chute and a fourth chute are respectively arranged at one ends of the first chute and the second chute; The first sliding pin body is slidably arranged inside the first chute and the third chute; The second sliding pin body is slidably arranged inside the second chute and the fourth chute.

7. The hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle according to claim 6, characterized in that, The first chute and the fourth chute are equal-diameter arc-shaped chutes; The second chute and the third chute are variable-diameter arc-shaped chutes.

8. The hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle according to claim 1, wherein, A connecting rod is rotatably connected to the outside of the connecting block through a fixed shaft; One end of the connecting rod is slidably connected to a clamping block; An elastic member for driving the clamping block to automatically reset is arranged at the other end of the connecting rod, and the elastic member is arranged on one side corresponding to the first support seat or the second support seat.

9. The hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle according to claim 1, characterized in that The pressing assembly further includes a connecting plate, and the connecting plate is fixedly arranged on one side of the connecting block; A guide groove is formed on one side of the connecting plate, and a slider is arranged in the guide groove.

10. The hydrogen pipeline exhaust leak detection device for a hydrogen fuel cell vehicle according to claim 1, characterized in that, The pressing assembly further includes: A fixing plate, arranged on one side of the shaft seat; An adsorbing member, connected to one side of the fixing plate, and the adsorbing member can adsorb the pressing plate so that the pressing plate fits against one side of the fixing plate.

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