A type of oil tank locking nut with a quick-positioning groove

Abstract

This utility model relates to a fuel tank locking nut with a quick-positioning groove, belonging to the technical field of fuel tank components. The fuel tank locking nut with a quick-positioning groove includes: a high-strength nut and an anti-loosening sealing mechanism. The high-strength nut has a positioning groove at its top and an annular cavity at its bottom. The anti-loosening sealing mechanism includes a rubber sealing ring embedded in the annular cavity, and a liquid storage cavity is formed inside the rubber sealing ring. Through the synergistic action of the rubber sealing ring and the puncture component, the release of sealant is automatically triggered during tightening, forming a multi-directional sealing layer and effectively preventing oil leakage. The pressurized gas in the liquid storage cavity ensures that the sealant quickly fills the gaps. Combined with the cross-shaped second and third liquid guiding channels, the sealing uniformity and reliability are significantly improved, thereby solving the problem of frictional corrosion caused by vibration.

Description

Technical Field

[0001] This utility model relates to the technical field of fuel tank components, and in particular to a fuel tank locking nut with a quick positioning groove. Background Technology

[0002] Fuel tank locking nuts with quick-positioning grooves are fasteners specifically designed for fuel tanks and other applications requiring rapid installation and accurate positioning. They feature guide grooves on their sides or end faces, and their unique shape facilitates quick installation using specialized tools. They are widely used in automotive and motorcycle fuel tanks and fuel systems.

[0003] During vehicle operation, the fuel tank is continuously subjected to multi-source vibration loads such as engine vibration, road surface excitation, and fuel sloshing, which causes the fasteners to produce slight relative movement, triggering a frictional corrosion effect, causing the nylon inserts to wear or the metal anti-loosening structure to relax stress, ultimately leading to the degradation of the locking nut's anti-loosening performance. Utility Model Content

[0004] Therefore, it is necessary to provide a tank lock nut with a quick-positioning groove to address the problem that the anti-loosening performance of the oil tank lock nut with a quick-positioning groove degrades under vibration load due to frictional corrosion and stress relaxation.

[0005] A tank locking nut with a quick positioning groove includes: a high-strength nut and an anti-loosening sealing mechanism. The high-strength nut has a positioning groove on its top and an annular cavity on its bottom.

[0006] In one embodiment, the anti-loosening sealing mechanism includes a rubber sealing ring embedded in the annular cavity. The rubber sealing ring has a liquid storage cavity inside, which is filled with sealant. A puncture component is embedded in the bottom of the rubber sealing ring, and the puncture component is located directly below the liquid storage cavity. Both the bottom of the puncture component and the bottom of the rubber sealing ring are located below the annular cavity.

[0007] In one embodiment, the puncture assembly includes a puncture needle embedded in the bottom of a rubber sealing ring, the tip of the puncture needle facing the fluid reservoir, a first fluid channel being formed at the bottom of the puncture needle, and a second fluid channel communicating with the first fluid channel being formed on the lateral surface of the puncture needle.

[0008] In one embodiment, a first fluid guiding groove is provided at the bottom of the rubber sealing ring, and the bottom of the puncture needle penetrates into the interior of the first fluid guiding groove.

[0009] In one embodiment, the puncture needle has a third fluid guiding channel on its lateral surface that communicates with the first fluid guiding channel, and the third fluid guiding channel is disposed inside the first fluid guiding ring groove.

[0010] In one embodiment, the horizontal cross-sectional shape of both the second and third liquid guiding channels is cross-shaped.

[0011] In one embodiment, the side surface of the rubber sealing ring is provided with a second liquid guiding ring groove communicating with the ring cavity, and the side surface of the puncture needle is fixedly connected with a liquid guiding tube communicating with the first liquid guiding channel, one end of the liquid guiding tube penetrating into the interior of the second liquid guiding ring groove.

[0012] In one embodiment, a flexible barrier membrane is fixedly connected inside the liquid storage cavity, and the liquid storage cavity is filled with pressurized gas. The pressurized gas and sealant are respectively disposed on the upper and lower sides of the flexible barrier membrane.

[0013] In one embodiment, the pressurized gas is a compressed nitrogen material component.

[0014] Beneficial effects

[0015] 1. The aforementioned oil tank locking nut with quick positioning groove, through the synergistic action of the rubber sealing ring of the anti-loosening sealing mechanism and the puncture component, automatically triggers the release of sealant during the tightening process, forming a multi-directional sealing layer, effectively preventing oil leakage; the pressurized gas in the liquid storage chamber ensures that the sealant quickly fills the gap, and combined with the second and third liquid guiding channels with cross-shaped cross sections, significantly improves the uniformity and reliability of the seal, thereby solving the problem of frictional corrosion caused by vibration.

[0016] 2. The linkage design of the positioning groove of the high-strength nut and the anti-loosening sealing mechanism allows the liquid storage cavity to be punctured by a piercing needle during installation, so that the sealant is distributed through multiple paths through the first and second liquid guiding ring grooves. After curing, it forms an elastic locking structure. This design maintains the rapid positioning function and provides continuous pressure through the pressurized gas isolated by the flexible barrier membrane, which counteracts the stress relaxation caused by vibration and maintains the anti-loosening performance for a long time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 3This is a schematic diagram of the anti-loosening sealing mechanism in this utility model;

[0021] Figure 4 This is a cross-sectional schematic diagram of the anti-loosening sealing mechanism in this utility model;

[0022] Figure 5 This is an exploded view of the puncture component in this utility model.

[0023] Figure label:

[0024] 100. High-strength nut; 110. Positioning groove; 120. Ring cavity; 200. Anti-loosening sealing mechanism; 210. Rubber sealing ring; 211. Liquid storage cavity; 212. First liquid guiding ring groove; 213. Second liquid guiding ring groove; 220. Sealant; 230. Puncture assembly; 231. Puncture needle; 232. First liquid guiding channel; 233. Second liquid guiding channel; 234. Third liquid guiding channel; 235. Liquid guiding tube; 240. Flexible barrier membrane; 250. Pressurized gas. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The following is combined Figure 1 - Figure 5 This invention describes a tank locking nut with a quick-positioning groove.

[0027] In one embodiment, a tank locking nut with a quick positioning groove includes: a high-strength nut 100 and an anti-loosening sealing mechanism 200. The high-strength nut 100 has a positioning groove 110 on its top and an annular cavity 120 on its bottom.

[0028] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the anti-loosening sealing mechanism 200 includes a rubber sealing ring 210 embedded in the annular cavity 120. The rubber sealing ring 210 provides an elastic sealing base to ensure a tight fit with the mounting surface, while also accommodating other functional components. A liquid storage cavity 211 is formed inside the rubber sealing ring 210, filled with sealant 220. The liquid storage cavity 211 serves as a storage space for the sealant 220, ensuring that the sealing material can be fully released when needed. The sealant 220 flows and fills the gaps under pressure, forming a reliable sealing layer to prevent oil leakage. A puncture component 230 is embedded in the bottom of the rubber sealing ring 210, positioned directly below the liquid storage cavity 211. Both the puncture component 230 and the bottom of the rubber sealing ring 210 are equipped with... Below the annular cavity 120, the puncture component 230 punctures the liquid storage cavity 211 by mechanical action, triggering the sealing process. A flexible barrier membrane 240 is fixedly connected inside the liquid storage cavity 211, and the liquid storage cavity 211 is filled with pressurized gas 250. The pressurized gas 250 and sealant 220 are respectively disposed on the upper and lower sides of the flexible barrier membrane 240. The pressurized gas 250 is a compressed nitrogen material component. The flexible barrier membrane 240 can isolate the pressurized gas 250 and the sealant 220 to ensure pressure transmission. The pressurized gas 250 can provide continuous pressure to push the sealant 220 to flow, so that no matter what angle the high-strength nut 100 is installed at, the sealant 220 can be quickly squeezed out after the liquid storage cavity 211 is punctured, so as to ensure that the sealing measures can be performed normally.

[0029] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the puncture assembly 230 includes a puncture needle 231 embedded in the bottom of the rubber sealing ring 210. The tip of the puncture needle 231 faces the liquid storage cavity 211. As the core component of the puncture assembly 230, the puncture needle 231 precisely punctures the bottom of the liquid storage cavity 211. A first liquid guiding channel 232 is formed at the bottom of the puncture needle 231, providing the main flow path for the sealant 220. A second liquid guiding channel 233 is formed on the lateral surface of the puncture needle 231, communicating with the first liquid guiding channel 232. The second liquid guiding channel 233 can laterally guide the sealant 220, preventing the rubber sealing ring 210 from blocking the second liquid guiding channel 233. A first liquid guiding ring groove 212 is formed at the bottom of the rubber sealing ring 210, and the bottom of the puncture needle 231 penetrates into the interior of the first liquid guiding ring groove 212. A third liquid guiding channel 233 is formed on the lateral surface of the puncture needle 231, communicating with the first liquid guiding channel 232. The third liquid guiding channel 234 is located inside the first liquid guiding ring groove 212. The design of the third liquid guiding channel 234 working together with the first liquid guiding ring groove 212 can increase the uniformity of the distribution of sealant 220 in the rubber sealing ring 210. The horizontal cross-sectional shape of the second liquid guiding channel 233 and the third liquid guiding channel 234 is cross-shaped, which can further expand the flow path of sealant 220 and ensure that sealant 220 is quickly discharged. The side surface of the rubber sealing ring 210 is provided with a second liquid guiding ring groove 213 communicating with the ring cavity 120. The side surface of the puncture needle 231 is fixedly connected with a liquid guiding tube 235 communicating with the first liquid guiding channel 232. One end of the liquid guiding tube 235 penetrates into the interior of the second liquid guiding ring groove 213. The design of the second liquid guiding ring groove 213 and the liquid guiding tube 235 can provide a flow channel for the lateral sealant 220, realizing multi-directional sealing.

[0030] Working principle: First, align the positioning groove 110 on the top of the high-strength nut 100 with the oil tank component. Check the condition of the rubber sealing ring 210 of the anti-loosening sealing mechanism 200 and the sealant 220 in the reservoir 211. Screw the high-strength nut 100 onto the threaded connector (such as a bolt or threaded post). After the rubber sealing ring 210 contacts the mounting surface, continue tightening to allow the piercing needle 231 of the piercing component 230 to pierce the reservoir 211. Pressurized gas 250 pushes the sealant 220... The fluid enters the first fluid-guiding ring groove 212 through the second fluid-guiding channel 233, the first fluid-guiding channel 232, and the third fluid-guiding channel 234 of the puncture needle 231. At the same time, some of the sealant 220 flows into the second fluid-guiding ring groove 213 through the fluid-guiding tube 235. After the sealant 220 fills the gap and cures, the high-strength nut 100 is fully tightened to ensure that the rubber sealing ring 210 and the puncture component 230 are tightly fitted, thus completing the automatic sealing. The entire process does not require manual intervention in the operation of the sealant 220 or the pressurized gas 250.

[0031] It should be noted that the high-strength nut 100, rubber sealing ring 210 and sealant 220 mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs, and the specific power supply method can be selected according to the situation, which will not be elaborated here.

[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fuel tank lock nut with quick positioning slot, characterized in that, include: A high-strength nut (100) has a positioning groove (110) on its top and an annular cavity (120) on its bottom. The anti-loosening sealing mechanism (200) includes a rubber sealing ring (210) embedded in the annular cavity (120). The rubber sealing ring (210) has a liquid storage cavity (211) inside, and the liquid storage cavity (211) is filled with sealant (220). A puncture component (230) is embedded in the bottom of the rubber sealing ring (210). The puncture component (230) is located directly below the liquid storage cavity (211). The bottoms of the puncture component (230) and the rubber sealing ring (210) are both located below the annular cavity (120).

2. The quick positioning slot tank lock nut according to claim 1, characterized in that, The puncture assembly (230) includes a puncture needle (231) embedded in the bottom of a rubber sealing ring (210). The tip of the puncture needle (231) faces the liquid storage chamber (211). A first liquid guiding channel (232) is provided at the bottom of the puncture needle (231). A second liquid guiding channel (233) communicating with the first liquid guiding channel (232) is provided on the lateral surface of the puncture needle (231).

3. The quick positioning slot tank lock nut according to claim 2, characterized in that, The bottom of the rubber sealing ring (210) is provided with a first liquid guiding ring groove (212), and the bottom of the puncture needle (231) penetrates into the interior of the first liquid guiding ring groove (212).

4. The oil tank locking nut with quick positioning groove according to claim 3, characterized in that, The puncture needle (231) has a third liquid guiding channel (234) on its lateral surface that communicates with the first liquid guiding channel (232). The third liquid guiding channel (234) is located inside the first liquid guiding ring groove (212).

5. The quick-loc tank nut of claim 4, wherein, The horizontal cross-sectional shape of the second liquid guiding channel (233) and the third liquid guiding channel (234) is cross-shaped.

6. The quick positioning slot tank lock nut of claim 2, wherein, The rubber sealing ring (210) has a second liquid guiding ring groove (213) that communicates with the ring cavity (120) on its lateral surface. The puncture needle (231) has a liquid guiding tube (235) that communicates with the first liquid guiding channel (232) fixedly connected to its lateral surface. One end of the liquid guiding tube (235) extends into the interior of the second liquid guiding ring groove (213).

7. The quick-loc tank nut of claim 1, wherein, A flexible barrier membrane (240) is fixedly connected inside the liquid storage chamber (211), and the liquid storage chamber (211) is filled with pressurized gas (250). The pressurized gas (250) and sealant (220) are respectively disposed on the upper and lower sides of the flexible barrier membrane (240).

8. The quick-loc tank nut of claim 7, wherein, The pressurizing gas (250) is a compressed nitrogen material component.

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