A rust-proof and leakage-proof bolt fastener
By designing anti-loosening components and anti-corrosion coatings, the problem of bolt fasteners loosening under vibration and impact is solved, thereby improving equipment safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU FENGYE HARDWARE TECHNOLOGY CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-05-29
AI Technical Summary
Existing bolt fasteners are prone to loosening under vibration and impact, which reduces equipment safety.
It employs anti-loosening components, including vertical rods, fixing blocks, limiting plates, and elastic elements, to prevent misalignment and loosening of bolts and nuts through mechanical locking. Combined with anti-corrosion coatings and waterproof rings, it improves rust and leak prevention performance.
It effectively prevents bolts and nuts from loosening under vibration and impact, improves equipment safety, prevents mechanical failures and traffic accidents, and enhances rust and leak prevention performance.
Smart Images
Figure CN224301207U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bolt fastener technology, and in particular to a rust-proof and leak-proof bolt fastener. Background Technology
[0002] In modern industrial production and daily life, bolts and fasteners, as basic components of mechanical connections, are widely used in various fields such as construction engineering, transportation, energy equipment, and aerospace. Whether it is the stable connection of bridge steel structures or the precision assembly of automobile engines, bolts and fasteners ensure the normal operation of various equipment and structures with their reliable fastening performance. In some special scenarios, such as chemical pipeline connections and marine engineering facility fixation, they are also used.
[0003] However, existing bolt fastener connection structures mainly rely on the friction between the threads to achieve fastening. During equipment operation, when affected by factors such as vibration, impact, and temperature changes to varying degrees, the friction between the threads will gradually decrease, causing the bolts and nuts to loosen. Loose bolts can lead to mechanical failures, seriously affecting the safety of equipment use.
[0004] Therefore, it is necessary to provide a rust-proof and leak-proof bolt fastener to solve the above-mentioned technical problems. Utility Model Content
[0005] This utility model provides a rust-proof and leak-proof bolt fastener, which solves the problem that the lack of anti-loosening function in traditional devices greatly reduces the safety of the device during use.
[0006] To solve the above-mentioned technical problems, this utility model provides a rust-proof and leak-proof bolt fastener comprising: a device body, the device body including an anti-loosening component, a nut, and a bolt; the anti-loosening component including a vertical rod on the bolt, a pressing rod on the vertical rod, a fixing block installed at the bottom of the vertical rod, an inverted conical block installed at the bottom of the pressing rod, a sliding groove on the vertical rod, a fixing plate fixedly installed inside the vertical rod, a push rod on the fixing plate, a vertical plate installed at one end of the push rod, a second elastic element surrounding the push rod to assist the vertical plate in resetting; a vertical groove inside the nut, a limiting plate inside the vertical groove, a shaft for connecting the nut and the limiting plate inside the vertical groove, and a first elastic element inside the vertical groove to assist the limiting plate in resetting.
[0007] Preferably, the main body of the device is provided with a safety component, the safety component including a disassembly groove formed on the top of the bolt, and a drain outlet formed inside the bolt.
[0008] Preferably, a first washer is provided between the bolt and the nut, and a second washer is provided between the bolt and the nut.
[0009] Preferably, both the bolt and nut are coated with an anti-corrosion coating, and the bolt is provided with a waterproof ring.
[0010] Preferably, the push rod is slidably connected to the slide groove, and the push rod is slidably connected to the fixed plate.
[0011] Preferably, the nut and the limiting plate are rotatably connected by a shaft.
[0012] Preferably, the pressing rod is slidably connected to the vertical rod.
[0013] Compared with related technologies, the rust-proof and leak-proof bolt fastener provided by this utility model has the following advantages:
[0014] Beneficial effects:
[0015] This utility model provides a rust-proof and leak-proof bolt fastener. When using this device, the bolt and nut are first installed, and then the vertical rod is inserted into the vertical groove inside the nut through the hole. At this time, the fixing block will squeeze the limiting plate, and the limiting plate will squeeze the first elastic element. When the fixing block passes the limiting plate, the first elastic element will assist the limiting plate in resetting, thereby limiting the limiting plate and preventing the bolt and nut from misaligning. This device adds the function of preventing the bolt and nut from misaligning. By mechanically locking, it suppresses the axial displacement of the bolt under vibration and impact loads, which can prevent the bolt and nut from loosening. It can prevent mechanical failures or traffic accidents caused by bolt falling off during the use of construction machinery and automobile chassis, thereby improving the safety of the device. Attached Figure Description
[0016] Figure 1 A schematic diagram of a preferred embodiment of the rust-proof and leak-proof bolt fastener provided by this utility model;
[0017] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the main body of the device.
[0018] Figure 3 for Figure 2 A schematic diagram of the internal structure of the vertical rod shown;
[0019] Figure 4 for Figure 2 The enlarged schematic diagram of part A shown below;
[0020] Figure 5 for Figure 3 The enlarged schematic diagram of part B is shown.
[0021] The following are the labeling elements in the diagram: 1. Main body of the device; 2. Anti-loosening component; 201. Vertical rod; 202. Inverted cone block; 203. Shaft; 204. Limiting plate; 205. First elastic element; 206. Fixing block; 207. Push rod; 208. Second elastic element; 209. Slide groove; 210. Vertical plate; 211. Vertical groove; 212. Pressing rod; 213. Fixing plate; 3. Safety component; 301. Drain outlet; 302. Disassembly groove; 4. Nut; 5. Bolt; 6. First gasket; 7. Waterproof ring; 8. Second gasket; 9. Anti-corrosion coating. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in Figure 1 A schematic diagram of a preferred embodiment of the rust-proof and leak-proof bolt fastener provided by this utility model; Figure 2 for Figure 1 The diagram shows a cross-sectional view of the main body of the device. Figure 3 for Figure 2 A schematic diagram of the internal structure of the vertical rod shown; Figure 4 for Figure 2 The enlarged schematic diagram of part A shown below; Figure 5 for Figure 3 The enlarged schematic diagram of part B is shown. A rust-proof and leak-proof bolt fastener includes: a device body 1, which includes an anti-loosening component 2, a nut 4, and a bolt 5. The anti-loosening component 2 includes a vertical rod 201 mounted on the bolt 5, a pressing rod 212 mounted on the vertical rod 201, a fixing block 206 installed at the bottom of the vertical rod 201, an inverted conical block 202 installed at the bottom of the pressing rod 212, a sliding groove 209 formed on the vertical rod 201, and a fixing plate 213 fixedly installed inside the vertical rod 201. The nut 4 is provided with a push rod 207, one end of which is mounted with a vertical plate 210. A second elastic element 208 is arranged around the push rod 207 to assist the vertical plate 210 in resetting. The nut 4 has a vertical groove 211 inside, and a limiting plate 204 is arranged inside the vertical groove 211. A shaft 203 for connecting the nut 4 and the limiting plate 204 is arranged inside the vertical groove 211. A first elastic element 205 is arranged inside the vertical groove 211 to assist the limiting plate 204 in resetting.
[0024] The first elastic element 205 can be a spring, elastic sponge or other elastic element that can assist the limiting plate 204 in resetting. The second elastic element 208 can be a spring, elastic sponge or other elastic element that can assist the vertical plate 210 in resetting. The shaft 203 can be a component used to connect the nut 4 and the limiting plate 204.
[0025] The main body 1 of the device is provided with a safety component 3, which includes a disassembly groove 302 formed on the top of the bolt 5, and a drain outlet 301 formed inside the bolt 5.
[0026] The aforementioned disassembly groove 302 allows tools to be inserted into the disassembly groove 302 to disassemble the bolt 5 after the edges around the bolt 5 have been ground smooth. The aforementioned drain outlet 301 allows water to be discharged from the drain outlet 301 when it rains or water enters, thereby achieving a waterproof function.
[0027] A first washer 6 is provided between the bolt 5 and the nut 4, and a second washer 8 is provided between the bolt 5 and the nut 4.
[0028] The first pad 6 mentioned above can be a rubber pad, metal pad, or other element that can provide cushioning, and the second pad 8 mentioned above can be a rubber pad, metal pad, or other element that can provide cushioning.
[0029] Both the bolt 5 and the nut 4 are coated with an anti-corrosion coating 9, and the bolt 5 is provided with a waterproof ring 7.
[0030] The aforementioned anti-corrosion coating 9 can prevent the bolts 5 and nuts 4 from corroding, thereby achieving the effect of corrosion protection.
[0031] The push rod 207 is slidably connected to the slide groove 209, and the push rod 207 is slidably connected to the fixing plate 213.
[0032] The aforementioned push rod 207 can push open the limiting plate 204 during disassembly, thereby enabling the vertical rod 201 to be disassembled.
[0033] The nut 4 and the limiting plate 204 are rotatably connected by a shaft 203, and the limiting plate 204 has the function of limiting the fixing block 206.
[0034] The pressing rod 212 is slidably connected to the vertical rod 201, and the pressing rod 212 has the function of driving the inverted cone block 202 to move.
[0035] The working principle of the rust-proof and leak-proof bolt fastener provided by this utility model is as follows:
[0036] When using this device, first install the bolt 5 and nut 4, then insert the vertical rod 201 into the vertical groove 211 in the nut 4 through the hole. At this time, the fixing block 206 will press the limiting plate 204, and the limiting plate 204 will press the first elastic element 205. When the fixing block 206 passes the limiting plate 204, the first elastic element 205 will assist the limiting plate 204 to reset, thereby limiting the limiting plate 204 and preventing the bolt 5 and nut 4 from being misaligned. When disassembly is required, first press the pressing rod 212 downward. At this time, the pressing rod 212 will drive the inverted cone block 202 to move downward. At this time, the inverted cone block 202 will press the vertical plate 210. At this time, the vertical plate 210 will drive the push rod 207 to slide along the slide groove 209. At this time, the push rod 207 will push the limiting plate 204 to break free from the restriction of the fixing block 206. Then the vertical rod 201 can be directly removed.
[0037] Compared with related technologies, the rust-proof and leak-proof bolt fastener provided by this utility model has the following advantages:
[0038] Beneficial effects:
[0039] When using this device, the bolt 5 and nut 4 can be installed first. Then, the vertical rod 201 is inserted into the vertical groove 211 in the nut 4 through the hole. At this time, the fixing block 206 will press the limiting plate 204, and the limiting plate 204 will press the first elastic element 205. When the fixing block 206 passes the limiting plate 204, the first elastic element 205 will assist the limiting plate 204 to reset, thereby limiting the limiting plate 204 and preventing the bolt 5 and nut 4 from misaligning. This device adds the function of preventing the bolt 5 and nut 4 from misaligning. By mechanically locking, the axial displacement of the bolt 5 under vibration and impact loads is suppressed, which can prevent the bolt 5 and nut 4 from loosening. It can prevent mechanical failures or traffic accidents caused by bolt falling off during the use of engineering machinery and automobile chassis, thereby improving the safety of the device.
[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A rust-proof and leak-proof bolt fastener, characterized in that, include: The device body includes an anti-loosening component, a nut, and a bolt. The anti-loosening component includes a vertical rod on the bolt, a pressing rod on the vertical rod, a fixing block at the bottom of the vertical rod, an inverted conical block at the bottom of the pressing rod, a sliding groove on the vertical rod, a fixing plate fixedly installed inside the vertical rod, a push rod on the fixing plate, a vertical plate installed at one end of the push rod, a second elastic element surrounding the push rod to assist the vertical plate in resetting, a vertical groove inside the nut, a limiting plate inside the vertical groove, a shaft for connecting the nut and the limiting plate inside the vertical groove, and a first elastic element inside the vertical groove to assist the limiting plate in resetting.
2. The rust-proof and leak-proof bolt fastener according to claim 1, characterized in that, The main body of the device is provided with a safety component, which includes a disassembly groove on the top of the bolt and a drain outlet inside the bolt.
3. The rust-proof and leak-proof bolt fastener according to claim 1, characterized in that, A first washer is provided between the bolt and the nut, and a second washer is provided between the bolt and the nut.
4. The rust-proof and leak-proof bolt fastener according to claim 1, characterized in that, Both the bolt and nut are coated with an anti-corrosion coating, and the bolt is provided with a waterproof ring.
5. The anti-rust and anti-leakage bolt fastener according to claim 1, characterized in that, The push rod is slidably connected to the slide groove, and the push rod is slidably connected to the fixed plate.
6. The anti-rust and anti-leakage bolt fastener according to claim 1, characterized in that, The nut and the limiting plate are rotatably connected by a shaft.
7. The anti-rust and leak-proof bolt fastener according to claim 1, characterized in that, The pressing rod is slidably connected to the vertical rod.