Hydrogen fuel cell liquid supply tube

Abstract

The utility model discloses a kind of hydrogen fuel cell liquid supply pipes, comprising: outer shell, further comprising: the outer shell is by the upper half shell and lower half shell of sliding connection composition;Adjusting assembly I, about the symmetry of two groups of adjusting assembly I of setting of outer shell's middle axis, and one end of adjusting assembly I is slidably connected with upper half shell, and the other end is provided with half arc plate I for limiting liquid supply pipe;Adjusting assembly II, about the symmetry of two groups of adjusting assembly II of setting of outer shell's middle axis, and one end of adjusting assembly II is fixedly connected with lower half shell, and the other end is provided with half arc plate II for limiting liquid supply pipe;Locking assembly, fixed by bolt realization.The utility model passes through a kind of hydrogen fuel cell liquid supply pipe, solves the problem that existing rubber tube liquid supply pipe cannot be fixed stably due to not being equipped with effective limiting device.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen fuel cell technology, specifically to a hydrogen fuel cell liquid supply pipe. Background Technology

[0002] New energy vehicles have become the future development direction of the automotive industry, and hydrogen fuel cell vehicles, with their advantages such as zero emissions and high efficiency, are regarded as one of the most promising new energy vehicle technologies.

[0003] In existing technologies, high-frequency vibrations are generated inside hydrogen fuel cells during operation. This causes the rubber tubing supply pipe to vibrate and inevitably collide frequently with surrounding metal parts, rigid pipelines, and other objects. To address this issue, existing devices include limiting components, such as the one described in application number CN202323494337.6, "A Hydrogen Fuel Cell Supply Pipe for Easy Fixing." However, this device has a drawback: the design of the buffer positioning component is based on a specific specification of corrugated pipe. In practical applications, hydrogen fuel cell supply pipes may have various pipe structures. If the buffer positioning component is applied to different pipe structures, the inner sleeve pipe and the pipe body positioning conical sleeve may not match the pipe's dimensions, resulting in ineffective positioning and buffering. Utility Model Content

[0004] One object of this invention is to solve at least the aforementioned problems and / or defects, and to provide at least the advantages described below.

[0005] To achieve these objectives and other advantages according to the present invention, a hydrogen fuel cell liquid supply pipe is provided, comprising: an outer casing, and further comprising:

[0006] The outer shell is composed of an upper half-shell and a lower half-shell that are slidably connected.

[0007] Adjustment component I has two sets of components symmetrically arranged about the central axis of the outer shell. One end of adjustment component I is slidably connected to the upper shell, and the other end is provided with a semi-arc plate I for limiting the liquid supply pipe.

[0008] Adjustment component II has two sets symmetrically arranged about the central axis of the outer shell, and one end of adjustment component II is fixedly connected to the lower half shell, while the other end is provided with a semi-arc plate II for limiting the liquid supply pipe;

[0009] The locking components are respectively located on the sides of the upper and lower housings, and the locking components are used to fix the upper and lower housings by bolts.

[0010] Preferably, the upper and lower shells are slidably connected in the following manner:

[0011] The top surface of the lower shell is symmetrically provided with grooves;

[0012] The upper shell is provided with a T-shaped protrusion at the position opposite to the groove, and the T-shaped protrusion engages with the groove to achieve a sliding connection between the upper and lower parts.

[0013] Preferably, the inner wall of the upper shell is provided with symmetrical sliding grooves;

[0014] The structure of adjustment component I includes:

[0015] The T-shaped sliding block has one end slidably connected in the sliding groove, and the other end is fixed to the semi-arc plate I.

[0016] Spring I has one end fixed to the inner end face of the sliding groove and the other end fixed to the T-shaped sliding block.

[0017] Preferably, the structure of the guiding adjustment component II includes:

[0018] Spring II, one end of which is fixed to the inner wall of the lower half shell, and the other end of which is fixed to the semi-arc plate II, and spring II is set at an angle;

[0019] Spring Ⅲ has one end fixed to the inner wall of the lower half shell and the other end fixed to the semi-arc plate Ⅱ. Spring Ⅲ is set vertically and there are two sets of springs symmetrically arranged about spring Ⅱ.

[0020] Preferably, the bottom surface of the lower shell is provided with a mounting plate, and the mounting plate has a plurality of threaded holes.

[0021] Preferably, the structure of the locking component includes:

[0022] Ear leaf I, whose side is fixedly connected to the upper shell, and two sets are symmetrically arranged about the central axis of the upper shell. A through hole is provided on ear leaf I;

[0023] Ear leaf II is fixedly connected to the lower half shell on its side, and two sets are symmetrically arranged about the central axis of the lower half shell. Ear leaf II is provided with a through threaded hole, and ear leaf I is arranged opposite to ear leaf II.

[0024] This utility model has at least the following beneficial effects:

[0025] This device adopts a sliding connection design between the upper and lower shells, which allows for the installation and disassembly of the liquid supply pipe without complicated operations, greatly improving installation efficiency and reducing installation difficulty and time costs. Furthermore, by adjusting component I and component II, the liquid supply pipe can adapt to different pipe diameters to a certain extent. By adjusting the positions of semi-arc plate I and semi-arc plate II, the effective fixation and restriction of the liquid supply pipe can be ensured.

[0026] Meanwhile, once the locking component is fixed, it can prevent the outer casing from loosening, ensuring that the liquid supply pipe remains stable during the operation of the hydrogen fuel cell system and that the stability and safety of the liquid supply are not affected by factors such as vibration or displacement.

[0027] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0028] Figure 1 This is an installation diagram of the present invention;

[0029] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 3 For the present utility model Figure 2 Cross-sectional structural diagram;

[0031] The markings in the diagram are: 1. Outer shell, 2. Upper shell, 21. T-shaped protrusion, 22. Handle, 23. Sliding groove, 3. Lower shell, 31. Groove, 32. Mounting plate, 4. Adjustment component I, 41. T-shaped sliding block, 42. Spring I, 5. Semi-arc plate I, 6. Adjustment component II, 61. Spring II, 62. Spring III, 7. Semi-arc plate II, 8. Locking component, 81. Ear leaf I, 82. Ear leaf II, 9. Liquid supply pipe. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0033] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0034] It should be noted that in the description of this utility model, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0036] Furthermore, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] The following is a detailed description of this novel experimental device with reference to the accompanying drawings:

[0038] Figure 1-3 This invention discloses a hydrogen fuel cell liquid supply pipe, comprising: an outer casing 1, and further comprising:

[0039] The outer shell 1 is composed of an upper half shell 2 and a lower half shell 3 that are slidably connected;

[0040] The adjusting component I4 has two sets of symmetrically arranged about the central axis of the outer shell 1, and one end of the adjusting component I4 is slidably connected to the upper shell 2, and the other end is provided with a semi-arc plate I5 for limiting the liquid supply pipe 9.

[0041] Adjustment component II6 has two sets of components symmetrically arranged about the central axis of the outer shell 1. One end of adjustment component II6 is fixedly connected to the lower half shell 3, and the other end is provided with a semi-arc plate II7 for limiting the liquid supply pipe 9.

[0042] Locking components 8 are respectively disposed on the sides of the upper half shell 2 and the lower half shell 3, and the locking components 8 are used to fix the upper half shell 2 and the lower half shell 3 by bolts.

[0043] Working principle:

[0044] When installing the hydrogen fuel cell liquid supply pipe 9, the operator slides the upper half shell 2 and the lower half shell 3 apart, then places the liquid supply pipe 9 between the semi-arc plate II 7 and the semi-arc plate I 5, and then reassembles the upper half shell 2 and the lower half shell 3 along the sliding trajectory so that the entire outer shell 1 covers the liquid supply pipe 9.

[0045] At this time, the adjusting component I4, which is slidably connected to the upper shell 2, causes the semi-arc plates I5 on both sides to press inward, thereby restricting and positioning the upper part of the liquid supply pipe 9; at the same time, the adjusting component II6, which is fixedly connected to the lower shell 3, causes the semi-arc plates II7 on both sides to press inward, thereby restricting and positioning the lower part of the liquid supply pipe 9.

[0046] After the liquid supply pipe 9 is fixed by the semi-arc plate II 7 and the semi-arc plate I 5, the locking component 8, which is fixed on the side of the outer shell 1, is fixed by bolts, thereby achieving a tight closure of the outer shell 1 and further securing the liquid supply pipe 9.

[0047] Among them, the inner surfaces of the semi-arc plate II7 and semi-arc plate I5 are in direct contact with the liquid supply pipe 9. To avoid damage to the liquid supply pipe 9, in actual use, materials such as rubber or polyurethane can be preferred. Rubber has good flexibility and elasticity, which can fit tightly against the surface of the liquid supply pipe 9 and play a certain buffering role; polyurethane has high wear resistance and strength, which can ensure the service life of the semi-arc plate.

[0048] In summary, this device adopts a sliding connection design between the upper half-shell 2 and the lower half-shell 3, which allows for the installation and disassembly of the liquid supply pipe 9 without complicated operations, greatly improving installation efficiency and reducing installation difficulty and time costs. Furthermore, by adjusting component I4 and adjusting component II6, the liquid supply pipe 9 can adapt to different pipe diameter requirements to a certain extent. By adjusting the position of semi-arc plate I5 and semi-arc plate II7, the effective fixation and restriction of the liquid supply pipe 9 can be ensured.

[0049] Meanwhile, once the locking component 8 is fixed, it can prevent the outer casing 1 from loosening, ensuring that the liquid supply pipe 9 remains stable during the operation of the hydrogen fuel cell system and will not affect the stability and safety of the liquid supply due to factors such as vibration and displacement.

[0050] In the above scheme, the specific method of sliding connection between the upper shell 2 and the lower shell 3 is as follows:

[0051] The top surface of the lower shell 3 is symmetrically provided with a groove 31;

[0052] The upper shell 2 is provided with a T-shaped protrusion 21 at the position opposite to the groove 31, and the T-shaped protrusion 21 engages with the groove 31 to achieve a sliding connection between the upper and lower parts.

[0053] Working principle:

[0054] When installing the hydrogen fuel cell supply pipe 9, lift the upper half of the shell 2 upwards, so that its T-shaped protrusion 21 moves along the vertical direction of the inner wall of the groove 31, thereby separating it from the lower half of the shell 3.

[0055] After the liquid supply tube 9 is placed, the upper half of the shell 2 is slowly lowered. At this time, the T-shaped protrusion 21 continues to slide vertically along the inner wall of the groove 31. As the upper half of the shell 2 continues to descend, it is until the upper half of the shell 2 is completely closed with the lower half of the shell 3, thus completing the clamping of the liquid supply tube 9.

[0056] The grooves 31 symmetrically arranged at both ends of the outer shell 1 engage with the T-shaped protrusions 21 to achieve stability in separating or closing the upper shell 2 and the lower shell 3. It is also suitable for liquid supply pipes 9 of different sizes, thus improving practicality.

[0057] In actual use, to facilitate operation, a handle 22 is hinged to the top surface of the upper shell 2 for easy lifting.

[0058] In the above scheme, the inner wall of the upper shell 2 is symmetrically provided with sliding grooves 23;

[0059] The structure of adjustment component I4 includes:

[0060] T-shaped sliding block 41, one end of which is slidably connected in sliding groove 23, and the other end is fixed to semi-arc plate I5;

[0061] Spring I 42 has one end fixed to the inner end face of the sliding groove 23 and the other end fixed to the T-shaped sliding block 41.

[0062] Working principle:

[0063] In the initial state (the upper half of the shell 2 and the lower half of the shell 3 are closed), the spring I 42 is in a naturally extended state. When the operator places the liquid supply pipe 9 on the semi-arc plate II 7 of the lower half of the shell 3 and ensures that the liquid supply pipe 9 is centered, the upper half of the shell 2 is pushed to slide down along the groove 31 of the lower half of the shell 3.

[0064] During the closing process of the upper shell 2, the semi-arc plate I5 moves towards the central axis until it contacts the outer wall of the liquid supply pipe 9. At this time, the liquid supply pipe 9 will squeeze the semi-arc plate I5, causing the T-shaped sliding block 41 to move towards the inner end of the sliding groove 23 and compress the spring I42.

[0065] Since spring I42 is in a compressed state, it continuously provides elastic force, squeezing the T-shaped sliding block 41 outward, so that the semi-arc plate I5 is tightly attached to the liquid supply pipe 9, forming an elastic clamp.

[0066] Among them, ① when the diameter of the liquid supply pipe 9 changes slightly due to pressure or temperature changes, the elastic deformation of the spring I42 allows the semi-arc plate I5 to adjust and slide slightly, automatically compensating for changes in pipe size and maintaining stable clamping force.

[0067] ② When the device vibrates due to external forces, the energy can be absorbed by the inherent characteristics of spring I42, reducing rigid impact and avoiding wear or breakage caused by direct collision between the pipe and the shell.

[0068] ③ This device does not require manual adjustment of the spacing of the semi-arc plates. When the upper half of the shell 2 is closed, the spring I42 automatically adapts to the pipe diameter, making it suitable for scenarios such as rapid on-site maintenance.

[0069] As described above, the structure of the adjustment component II6 includes:

[0070] Spring II 61, one end of which is fixed to the inner wall of the lower half shell 3, and the other end of which is fixed to the semi-arc plate II 7, and spring II 61 is inclined.

[0071] Spring Ⅲ62 has one end fixed to the inner wall of the lower half shell 3 and the other end fixed to the semi-arc plate Ⅱ7. Spring Ⅲ62 is vertically arranged and there are two sets symmetrically arranged about spring Ⅱ61.

[0072] Working principle:

[0073] In the initial state (when the upper shell 2 and the lower shell 3 are closed), springs II 61 and III 62 are in a naturally extended state, and the semi-arc plate II 7 remains in the initial position.

[0074] After the liquid supply pipe 9 is placed, the semi-arc plate II 7 of the lower housing 3 is displaced due to the compression of the liquid supply pipe 9 (or its own weight). Because the spring II 61 is tilted, it can not only provide elastic force in the radial direction of the liquid supply pipe 9, but also offset the tangential force generated by the liquid supply pipe 9 during installation or system operation to a certain extent.

[0075] The two sets of vertically arranged springs Ⅲ62 mainly provide stable support in the radial direction of the liquid supply pipe 9, ensuring that the semi-arc plate Ⅱ7 is vertical inside the lower half shell 3.

[0076] When the upper shell 2 is pushed until it is completely closed, springs II 61 and III 62 are compressed, generating elastic restoring force, which causes the semi-arc plate II 7 to fit tightly against the surface of the liquid supply pipe 9.

[0077] Among them, ① during system operation, if the liquid supply pipe 9 is displaced or deformed due to factors such as thermal expansion and contraction or vibration, springs II 61 and III 62 will undergo elastic deformation according to the direction and magnitude of the force, and absorb and buffer the external force through their own extension and contraction, so as to ensure that the semi-arc plate II 7 is in close contact with the liquid supply pipe 9 and maintain the stable fixation of the liquid supply pipe 9.

[0078] ② Regardless of how the diameter of the liquid supply pipe 9 changes (within the elastic range of the spring), springs II 61 and III 62 can automatically adjust the position of the semi-arc plate II 7 through their own compression and extension, so as to achieve good adaptation to liquid supply pipes 9 of different diameters, thereby enhancing the versatility and adaptability of the device.

[0079] ③ In practical use, springs I 42, spring II 61 and spring III 62 can all be selected: such as 304 and 316 stainless steel spring steel, which have good corrosion resistance and high strength, and can be adapted to the working environment of general hydrogen fuel cells.

[0080] As described above, the bottom surface of the lower housing 3 is provided with a mounting plate 32, and the mounting plate 32 has a plurality of threaded holes distributed thereon.

[0081] Working principle:

[0082] After the device is installed, it is bolted to the external structure through the screw holes on the mounting plate 32 to prevent the device from moving during use.

[0083] As described above, the structure of locking component 8 includes:

[0084] Ear leaf I 81, its side is fixedly connected to the upper shell 2, and two sets are symmetrically arranged about the central axis of the upper shell 2. The ear leaf I 81 is provided with a through hole.

[0085] Ear leaf II 82 is fixedly connected to the lower half shell 3 on its side, and two sets are symmetrically arranged about the central axis of the lower half shell 3. Ear leaf II 82 is provided with a through threaded hole, and ear leaf I 81 is arranged opposite to ear leaf II 82.

[0086] Working principle:

[0087] After the liquid supply tube 9 is installed, the operator inserts a screw through the through hole of ear leaf I 81, causing the nut at the top of the screw to press against the through hole and provide a downward force. The threaded end of the screw connects with the threaded hole of ear leaf II 82. The screw is then manually tightened, causing the upper half of the housing 2 and the lower half of the housing 3 to come closer together, thus effectively clamping the liquid supply tube 9. The symmetrical arrangement of ear leaves I 81 and ear leaves II 82 ensures that the entire device is subjected to uniform force.

[0088] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A hydrogen fuel cell liquid supply pipe, comprising: The outer casing is characterized by further comprising: The outer shell is composed of an upper half-shell and a lower half-shell that are slidably connected. Adjustment component I has two sets of components symmetrically arranged about the central axis of the outer shell. One end of adjustment component I is slidably connected to the upper shell, and the other end is provided with a semi-arc plate I for limiting the liquid supply pipe. Adjustment component II has two sets symmetrically arranged about the central axis of the outer shell, and one end of adjustment component II is fixedly connected to the lower half shell, while the other end is provided with a semi-arc plate II for limiting the liquid supply pipe; The locking components are respectively located on the sides of the upper and lower housings, and the locking components are used to fix the upper and lower housings by bolts.

2. The hydrogen fuel cell liquid supply pipe according to claim 1, characterized in that, The specific method by which the upper and lower shells are slidably connected is as follows: The top surface of the lower shell is symmetrically provided with grooves; The upper shell is provided with a T-shaped protrusion at the position opposite to the groove, and the T-shaped protrusion engages with the groove to achieve a sliding connection between the upper and lower parts.

3. The hydrogen fuel cell liquid supply pipe according to claim 1, characterized in that, The inner wall of the upper shell is symmetrically provided with sliding grooves; The structure of adjustment component I includes: The T-shaped sliding block has one end slidably connected in the sliding groove, and the other end is fixed to the semi-arc plate I. Spring I has one end fixed to the inner end face of the sliding groove and the other end fixed to the T-shaped sliding block.

4. The hydrogen fuel cell liquid supply pipe according to claim 1, characterized in that, The structure of the adjustment component II includes: Spring II, one end of which is fixed to the inner wall of the lower half shell, and the other end of which is fixed to the semi-arc plate II, and spring II is set at an angle; Spring Ⅲ has one end fixed to the inner wall of the lower half shell and the other end fixed to the semi-arc plate Ⅱ. Spring Ⅲ is set vertically and there are two sets of springs symmetrically arranged about spring Ⅱ.

5. The hydrogen fuel cell liquid supply pipe according to claim 1, characterized in that, The bottom surface of the lower shell is provided with a mounting plate, and the mounting plate has a number of threaded holes.

6. The hydrogen fuel cell liquid supply pipe according to claim 1, characterized in that, The structure of the locking component includes: Ear leaf I, whose side is fixedly connected to the upper shell, and two sets are symmetrically arranged about the central axis of the upper shell. Ear leaf I is a through hole. Ear leaf II is fixedly connected to the lower half shell on its side, and two sets are symmetrically arranged about the central axis of the lower half shell. Ear leaf II is provided with a through threaded hole, and ear leaf I is arranged opposite to ear leaf II.

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