Positioning water and air pipeline connecting device

Abstract

The application provides a positioning water vapor pipeline connecting device, which comprises an inner positioning clamping plate assembly, an outer positioning clamping plate assembly and a tightening connecting assembly. The outer positioning clamping plate assembly clamps the movable end of a movable pipeline of a test bench, and the inner positioning clamping plate assembly clamps the connecting end of a pipeline of an electric pile. The inner positioning clamping plate assembly and the outer positioning clamping plate assembly are tightened through the tightening connecting assembly. When the inner positioning clamping plate assembly and the outer positioning clamping plate assembly are connected, the movable end of the movable pipeline of the test bench is connected with the connecting end of the pipeline of the electric pile. The application has stable structure, uniform pipeline connecting stress, strong air tightness, no need of repeated positioning, prolonged pipeline service life and improved test efficiency.

Description

Technical Field

[0001] This invention relates to the field of fuel cell technology, and more specifically, to a positioning water-gas pipeline connection device, particularly a fully automatic magnetic positioning water-gas pipeline connection device. Background Technology

[0002] A fuel cell is a power generation device that directly converts the chemical energy of fuel into electrical energy through an electrochemical reaction. It has a fuel chamber, an oxidant chamber, and a coolant chamber, used for transporting fuel, oxidant, and coolant, respectively. During fuel cell testing, the corresponding gas and liquid supply lines of the test bench need to be connected to the corresponding lines of the fuel cell. Since fuel cells often use hydrogen as fuel, and hydrogen is a flammable and explosive gas, the sealing requirements for the pipeline connections are extremely high.

[0003] In existing water and gas pipeline connections, flanges, clamps, and sealing tapes are commonly used as fittings. A seal is achieved by compressing the sealing ring at the joint. However, flanges require numerous bolts and nuts for fastening, making operation extremely inconvenient and prone to damaging pipe connections. Clamps and sealing tapes bear force on one side only, leading to uneven stress on the sealing ring and compromising the airtightness of the connection, significantly increasing safety hazards. Furthermore, installing water and gas pipelines using these methods requires multiple people working simultaneously and constantly adjusting the installation distance and height, reducing installation efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a positioning water and gas pipeline connection device.

[0005] A positioning water and gas pipeline connection device according to the present invention includes: an inner positioning clamping plate assembly, an outer positioning clamping plate assembly, and a tightening connection assembly;

[0006] The outer positioning clamping plate assembly is configured to clamp the movable end of the test bench's movable pipeline, and the inner positioning clamping plate assembly is configured to clamp the connecting end of the fuel cell stack's end pipeline.

[0007] The inner positioning clamp assembly and the outer positioning clamp assembly are tightened by the tightening connection assembly;

[0008] When the inner positioning clamp assembly and the outer positioning clamp assembly are tightened together, the movable end of the test bench movable pipe is connected to the connection end of the fuel cell stack end pipe.

[0009] Preferably, the tightening connection assembly includes a lead screw motor and a lead screw motor connector;

[0010] The lead screw motor is mounted on the inner positioning clamping plate assembly, which has a first through hole; the lead screw motor connector is mounted on the outer positioning clamping plate assembly, which has a second through hole.

[0011] When the inner positioning clamping plate assembly and the outer positioning clamping plate assembly are connected, the lead screw of the lead screw motor passes through the first through hole and the second through hole in sequence and connects with the lead screw motor connector.

[0012] Preferably, the inner positioning clamping plate assembly includes a first inner clamping plate, a second inner clamping plate, and an opening and closing drive assembly;

[0013] The opening and closing drive assembly is connected to the first inner side plate and the second inner side plate, and the opening and closing drive assembly is used to drive the first inner side plate and the second inner side plate to move closer to or further away from each other;

[0014] The first inner clamping plate is provided with a first inner clamping groove structure, and the second inner clamping plate is provided with a second inner clamping groove structure. The connection end of the fuel cell stack end pipe is clamped by the first clamping groove structure and the second clamping groove structure.

[0015] Preferably, the opening and closing drive assembly includes a hydraulic cylinder and a hydraulic cylinder connector;

[0016] The first inner clamping plate is provided with a first inner connecting block, and the second inner clamping plate is provided with a second inner connecting block; the second inner clamping plate is provided with a fixing seat;

[0017] The hydraulic cylinder is mounted on the fixed base, and slots are provided on both the first inner connecting block and the second inner connecting block.

[0018] One end of the hydraulic rod of the hydraulic cylinder passes through the slots on the first inner connecting block and the second inner connecting block in sequence, and is connected to the first inner connecting block through the hydraulic cylinder connector.

[0019] Preferably, the outer positioning clamp assembly includes a first outer clamp, a second outer clamp, and a fixing connector;

[0020] The first outer clamp and the second outer clamp are connected by the fixing connector;

[0021] The first outer clamping plate is provided with a first outer slot structure, and the second outer clamping plate is provided with a second outer slot structure. The movable end of the test bench movable pipeline is clamped by the first outer slot structure and the second outer slot structure.

[0022] Preferably, the outer positioning clamping plate assembly is provided with a boss structure;

[0023] The inner positioning clamping plate assembly is provided with a recessed structure that is adapted to the boss structure.

[0024] Preferably, it also includes a first magnet and a second magnet;

[0025] The inner positioning clamping plate assembly is provided with a first composite hole, and the first magnet is disposed in the first composite hole.

[0026] The outer positioning clamp assembly is provided with a second composite hole, which corresponds to the first composite hole, and the second magnet is disposed in the second composite hole.

[0027] Preferably, it also includes a guide rail and an electric guide rail slider;

[0028] The electric guide rail slider is mounted on the inner positioning clamping plate assembly, and the electric guide rail slider is mounted on the guide rail.

[0029] Preferred options also include limiting nylon;

[0030] The limiting nylon is disposed on the outer positioning clamp assembly, and the limiting nylon is interference-fitted with the movable end of the water and gas pipeline.

[0031] Preferably, it also includes a sealing ring;

[0032] The sealing ring is disposed on the inner positioning clamp assembly, and the sealing ring is located at the connection end of the fuel cell stack end pipe.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. The present invention has a stable structure, uniform stress on the pipeline connection, and strong airtightness; it does not require repeated positioning, which extends the service life of the pipeline and improves the testing efficiency.

[0035] 2. The device of the present invention does not require modification of the pipeline path and structure, and can achieve one-button start-up and automatic connection without the need for multiple operators;

[0036] 3. The device of the present invention can achieve fully automatic stroke synchronization, stable pressure on the connecting plate surface, uniform force on the sealing ring, and stronger sealing performance;

[0037] 4. The device of the present invention has fewer assembly and disassembly steps, reduces damage to pipelines caused by repeated installations, facilitates inspection and maintenance, and improves the service life of water and gas pipelines.

[0038] 5. The device of the present invention has high safety performance, prevents crushing and pinching injuries, and eliminates safety hazards. Attached Figure Description

[0039] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0040] Figure 1 This is a schematic diagram of the assembly of the positioning water and gas pipeline connection device of the present invention in the direction of the inner positioning clamping plate assembly. Figure 1 ;

[0041] Figure 2 This is a schematic diagram of the assembly of the positioning water and gas pipeline connection device of the present invention in the direction of the outer positioning clamp assembly. Figure 2 ;

[0042] Figure 3 This is an assembly side view of the positioning water-gas pipeline connection device of the present invention;

[0043] Figure 4 This is a structural schematic diagram of the inner positioning clamping plate assembly;

[0044] Figure 5 This is a schematic diagram of the outer positioning clamp assembly.

[0045] The diagram shows:

[0046] Inner positioning component 1, first inner connecting block 14

[0047] First inner side clamping plate 101 Second inner side connecting block 15

[0048] Second inner side clamp 102 fixing seat 16

[0049] Outer positioning component 2 First composite hole 17

[0050] First outer side plate 201 Second composite hole 18

[0051] Second outer side plate 202 First through hole 19

[0052] First magnet 3, second through hole 20

[0053] Hydraulic cylinder 4, boss structure 21

[0054] Hydraulic cylinder connector 5, recessed platform structure 22

[0055] Lead screw motor 6, test bench moving pipeline 23

[0056] Screw motor connector 7; fuel cell stack end piping 24

[0057] Teflon feet 8, slot 25

[0058] Guide rail 9, threaded hole 26

[0059] Electric guide rail slider 10 First outer connecting block 27

[0060] Limiting Nylon 11 Second Outer Connecting Block 28

[0061] Sealing ring 12, fastener 29

[0062] Second magnet 13 Detailed Implementation

[0063] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0064] Example 1:

[0065] like Figures 1-5 As shown, this embodiment provides a positioning water-gas pipeline connection device, including: an inner positioning clamping plate assembly 1, an outer positioning clamping plate assembly 2, and a tightening connection assembly. The outer positioning clamping plate assembly 2 clamps the movable end of the test platform movable pipeline 23, and the inner positioning clamping plate assembly 1 clamps the connection end of the fuel cell stack end pipeline 24. The inner positioning clamping plate assembly 1 and the outer positioning clamping plate assembly 2 are tightened by the tightening connection assembly. When the inner positioning clamping plate assembly 1 and the outer positioning clamping plate assembly 2 are tightened, the movable end of the test platform movable pipeline 23 is connected to the connection end of the fuel cell stack end pipeline 24.

[0066] The positioning water and gas pipeline connection device of this embodiment also includes a first magnet 3 and a second magnet 13. The inner positioning clamping plate assembly 1 is provided with a first composite hole 17, and the first magnet 3 is disposed in the first composite hole 17. The outer positioning clamping plate assembly 2 is provided with a second composite hole 18, which corresponds to the first composite hole 17, and the second magnet 13 is disposed in the second composite hole 18.

[0067] The positioning water and gas pipeline connection device of this embodiment also includes a guide rail 9 and an electric guide rail slider 10. The electric guide rail slider 10 is disposed on the inner positioning clamping plate assembly 1 and on the guide rail 9.

[0068] The positioning water and gas pipeline connection device in this embodiment also includes a limiting nylon 11, which is disposed on the outer positioning clamping plate assembly 2 and is interference-fitted with the movable end of the water and gas pipeline.

[0069] The positioning water-gas pipeline connection device in this embodiment also includes a sealing ring 12, which is disposed on the inner positioning clamping plate assembly and is located at the connection end of the fuel cell stack end pipeline 24.

[0070] The inner positioning clamping plate assembly 1 includes a first inner clamping plate 101, a second inner clamping plate 102, and an opening and closing drive assembly. The opening and closing drive assembly is connected to the first inner clamping plate 101 and the second inner clamping plate 102. The opening and closing drive assembly is used to drive the first inner clamping plate 101 and the second inner clamping plate 102 to move closer or further apart from each other. The first inner clamping plate 101 is provided with a first inner slot structure, and the second inner clamping plate 102 is provided with a second inner slot structure. The connection end of the fuel cell stack end pipe 24 is clamped by the first slot structure and the second slot structure.

[0071] The opening and closing drive assembly includes a hydraulic cylinder 4 and a hydraulic cylinder connector 5. A first inner connecting block 14 is provided on the first inner clamping plate 101, and a second inner connecting block 15 is provided on the second inner clamping plate 102. A fixed seat 16 is provided on the second inner clamping plate 102. The hydraulic cylinder 4 is mounted on the fixed seat 16. Both the first inner connecting block 14 and the second inner connecting block 15 are provided with slots 25. One end of the hydraulic rod of the hydraulic cylinder 4 passes through the slots 25 on the first inner connecting block 14 and the second inner connecting block 15 in sequence, and is connected to the first inner connecting block 14 through the hydraulic cylinder connector 5.

[0072] The tightening connection assembly includes a lead screw motor 6 and a lead screw motor connector 7. The lead screw motor 6 is mounted on the inner positioning clamping plate assembly 1, which has a first through hole 19. The lead screw motor connector 7 is mounted on the outer positioning clamping plate assembly 2, which has a second through hole 20. When the inner positioning clamping plate assembly 1 and the outer positioning clamping plate assembly 2 are connected, the lead screw of the lead screw motor 6 passes through the first through hole 19 and the second through hole 20 in sequence and connects with the lead screw motor connector 7.

[0073] The outer positioning clamp assembly 2 includes a first outer clamp 201, a second outer clamp 202, and a fixing connector 29. The first outer clamp 201 and the second outer clamp 202 are connected by the fixing connector 29. The first outer clamp 201 is provided with a first outer slot structure, and the second outer clamp 202 is provided with a second outer slot structure. The movable end of the test bench's movable pipeline 23 is clamped by the first outer slot structure and the second outer slot structure. The fixing connector 29 is a bolt.

[0074] A first outer connecting block 27 is provided on the first outer clamping plate 201, and a second outer connecting block 28 is provided on the second outer clamping plate 202. The first outer connecting block 27 and the second outer connecting block 28 are connected by a fixed connector 29 and a threaded hole 26.

[0075] The outer positioning clamping plate assembly 2 is provided with a boss structure 21, and the inner positioning clamping plate assembly 1 is provided with a concave structure 22 that is adapted to the boss structure 21.

[0076] Example 2:

[0077] Those skilled in the art can understand this embodiment as a more specific description of Embodiment 1.

[0078] This embodiment provides a fully automatic magnetic positioning water and gas pipeline connection device based on PCL control, specifically an automatic pipeline connection device applied to a fuel cell test bench.

[0079] The fully automatic magnetic positioning water and gas pipeline connection device based on PCL control provided in this embodiment includes an inner positioning clamp, an outer positioning clamp, a cylindrical strong magnet, a hydraulic cylinder 4, a hydraulic cylinder connector 5, a lead screw motor 6, a lead screw motor connector 7, Teflon feet 8, a guide rail 9, an electric guide rail slider 10, a limiting nylon 11, and a sealing ring 12.

[0080] The inner positioning clamp is equipped with cylindrical strong magnets, hydraulic cylinders, a lead screw motor, an electric guide rail slider, and a sealing ring. The inner positioning clamp has four composite holes into which cylindrical strong magnets are inserted. Due to the stepped structure of the composite holes, the cylindrical strong magnets are held in place at a step two millimeters from the inner plate surface, preventing collisions and damage when the inner and outer cylindrical strong magnets attract each other. Two hydraulic cylinders are connected to both sides of the inner positioning clamp via connectors. The lead screw motor is installed on the outer side of the inner positioning clamp. After the lead screw motor starts, it rotates the lead screw to tighten the outer positioning clamp, causing both the inner and outer positioning clamps to tighten inwards, clamping the sealing ring to seal the water and air pipes. The base of the inner positioning clamp is connected to the electric guide rail slider, which automatically adjusts the position of the clamp on the guide rail. Teflon feet are affixed to the base to prevent slippage and wear on the worktable surface. The inner positioning clamp has a boss that fits tightly with the recess of the outer positioning clamp to prevent misalignment.

[0081] The outer positioning clamp is equipped with a cylindrical strong magnet, a lead screw motor connector, a limiting nylon, and a sealing ring. The outer positioning clamp has four composite holes corresponding to those on the inner positioning clamp, into which cylindrical strong magnets are inserted. The water and gas pipeline section of the test bench is fixed using the outer positioning clamp, and the pipeline joints are secured with locking screws on both sides; a secondary fixation using limiting nylon is used to prevent the outer movable end of the pipeline from loosening.

[0082] The following section, with reference to the accompanying diagrams and specific structure, further elaborates on the implementation:

[0083] Four cylindrical strong magnets were placed face down. Figure 4Four additional cylindrical strong magnets, 3N pole facing down, are placed into the second composite hole 18 of the outer positioning plate within the first composite hole 17 of the inner positioning plate, and then sealed with liquid epoxy resin. This epoxy resin can be cured by irradiation with ultraviolet light.

[0084] Teflon foot pads 8 are attached to the bottom of the inner positioning clamp base to prevent wear on the bottom and worktable surface during the operation of the electric slider, and at the same time reduce the resistance of the electric guide rail slider 10.

[0085] Pass the hydraulic rod of hydraulic cylinder 4 through Figure 4 The first slots 25 on both sides of the inner positioning clamp are shown. Two hydraulic cylinders 4 are fixed to the first outer connecting block 14 of the inner positioning clamp using hydraulic cylinder connectors 5.

[0086] The inner positioning clamp is fixedly connected to the electric guide rail slider 10, and the electric guide rail slider 10 is installed into the guide rail 9. The available stroke of the guide rail 9 is set to prevent the electric guide rail slider 10 from derailing during sliding operation.

[0087] The lead screws of the two lead screw motors 6 are coaxially fitted with the first through hole 19 of the inner fixing plate and fixed. The lead screw motor connector 7 is coaxially fitted with the second through hole 20 of the outer positioning plate and fixed with screws.

[0088] Use the outer positioning clamp to clamp the movable end of the water and gas pipeline on the test bench, and tighten both ends with screws. Since the movable end pipeline needs to operate without constraints, use limiting nylon 11 installed on the outer positioning clamp. The nylon's extensibility and interference fit with the movable end of the water and gas pipeline provide secondary reinforcement to the movable end water and gas pipeline and the outer positioning clamp to prevent loosening.

[0089] The electric guide rail slider 10 automatically adjusts the position of the inner positioning clamp on the guide rail until the sealing surface of the inner positioning clamp is flush with the water and gas pipeline connection. The electric guide rail slider then stops working. After automatic positioning via the guide rail, the hydraulic cylinder automatically tightens the inner positioning clamp, clamping the connection to the water and gas pipeline at the fuel cell stack end.

[0090] The outer positioning clamp is pressed tightly against the inner positioning clamp, and the cylindrical strong magnet and the stepped surface between the two plates are used to achieve the fit. The starter screw motor 6 and the screw motor connector 7 are engaged to tighten inward, and the sealing ring 12 is clamped by the pressure between the two plates to achieve a sealed connection of the water and gas pipeline.

[0091] This embodiment provides a fully automatic magnetically positioned water-gas pipeline connection device based on PCL control. The device includes an inner positioning clamp and an outer positioning clamp with magnetic positioning function. The inner positioning clamp is connected to a guide rail that assists its operation. The inner positioning clamp is equipped with two lead screw motors, and the outer positioning clamp has corresponding lead screw connectors. Connecting the outer positioning clamp to the corresponding water-gas pipeline of the test bench and the inner positioning clamp to the corresponding water-gas pipeline of the fuel cell helps the inner and outer positioning clamps to move closer together, and the inner and outer positioning clamps are joined together under the magnetic attraction of a cylindrical strong magnet. Activating the lead screw motors provides secondary fixation to the inner and outer positioning clamps, completing the sealed connection between the test bench and the corresponding water-gas pipeline of the fuel cell.

[0092] The present invention has a stable structure, uniform stress on the pipeline connection, strong airtightness, no need for repeated positioning, extends the service life of the pipeline, and improves testing efficiency.

[0093] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0094] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A positioning-type water and gas pipeline connection device, characterized in that, include: Inner positioning clamp assembly (1), outer positioning clamp assembly (2), and tightening connection assembly; The outer positioning clamping plate assembly (2) is configured to clamp the movable end of the test bench movable pipeline (23), and the inner positioning clamping plate assembly (1) is configured to clamp the connecting end of the fuel cell stack end pipeline (24). The inner positioning clamp assembly (1) and the outer positioning clamp assembly (2) are tightened by the tightening connection assembly; When the inner positioning clamp assembly (1) and the outer positioning clamp assembly (2) are tightened together, the movable end of the test bench movable pipe (23) is connected to the connection end of the fuel cell stack end pipe (24); The tightening connection assembly includes a lead screw motor (6) and a lead screw motor connector (7). The lead screw motor (6) is mounted on the inner positioning clamp assembly (1), and the inner positioning clamp assembly (1) is provided with a first through hole (19); the lead screw motor connector (7) is mounted on the outer positioning clamp assembly (2), and the outer positioning clamp assembly (2) is provided with a second through hole (20). When the inner positioning clamping plate assembly (1) and the outer positioning clamping plate assembly (2) are connected, the lead screw of the lead screw motor (6) passes through the first through hole (19) and the second through hole (20) in sequence and is connected to the lead screw motor connector (7); The outer positioning clamp assembly (2) is provided with a boss structure (21). The inner positioning clamping plate assembly (1) is provided with a recessed structure (22) that is compatible with the boss structure (21). It also includes the first magnet (3) and the second magnet (13); The inner positioning clamp assembly (1) is provided with a first composite hole (17), and the first magnet (3) is disposed in the first composite hole (17); The outer positioning clamp assembly (2) is provided with a second composite hole (18), which corresponds to the first composite hole (17), and the second magnet (13) is disposed in the second composite hole (18); It also includes a guide rail (9) and an electric guide rail slider (10). The electric guide rail slider (10) is disposed on the inner positioning clamping plate assembly (1), and the electric guide rail slider (10) is disposed on the guide rail (9).

2. The positioning water-gas pipeline connection device according to claim 1, characterized in that, The inner positioning clamping plate assembly (1) includes a first inner clamping plate (101), a second inner clamping plate (102), and an opening and closing drive assembly; The opening and closing drive assembly is connected to the first inner side plate (101) and the second inner side plate (102). The opening and closing drive assembly is used to drive the first inner side plate (101) and the second inner side plate (102) to move closer to or further away from each other. The first inner clamping plate (101) is provided with a first inner clamping groove structure, and the second inner clamping plate (102) is provided with a second inner clamping groove structure. The connection end of the fuel cell stack end pipe (24) is clamped by the first clamping groove structure and the second clamping groove structure.

3. The positioning water-gas pipeline connection device according to claim 2, characterized in that, The opening and closing drive assembly includes a hydraulic cylinder (4) and a hydraulic cylinder connector (5); The first inner clamping plate (101) is provided with a first inner connecting block (14), and the second inner clamping plate (102) is provided with a second inner connecting block (15); the second inner clamping plate (102) is provided with a fixing seat (16). The hydraulic cylinder (4) is mounted on the fixed base (16), and slots (25) are provided on both the first inner connecting block (14) and the second inner connecting block (15). One end of the hydraulic rod of the hydraulic cylinder (4) passes through the slot (25) on the first inner connecting block (14) and the second inner connecting block (15) in sequence, and is connected to the first inner connecting block (14) through the hydraulic cylinder connector (5).

4. The positioning water-gas pipeline connection device according to claim 1, characterized in that, The outer positioning clamp assembly (2) includes a first outer clamp (201), a second outer clamp (202), and a fixing connector (29); The first outer clamp (201) and the second outer clamp (202) are connected by the fixing connector (29); The first outer clamping plate (201) is provided with a first outer slot structure, and the second outer clamping plate (202) is provided with a second outer slot structure. The movable end of the test platform movable pipe (23) is clamped by the first outer slot structure and the second outer slot structure.

5. The positioning water-gas pipeline connection device according to claim 1, characterized in that, It also includes limiting nylon (11); The limiting nylon (11) is disposed on the outer positioning clamp assembly (2), and the limiting nylon (11) is interference-fitted with the movable end of the water and gas pipeline.

6. The positioning water-gas pipeline connection device according to claim 1, characterized in that, It also includes a sealing ring (12); The sealing ring (12) is provided on the inner positioning clamp assembly, and the sealing ring (12) is located at the connection end of the fuel cell stack end pipe (24).

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