A corrosion and rust prevention round link chain
By coating the circular link chain with an anti-corrosion and anti-rust layer and adopting a sealed and easy-to-disassemble design, the problem of the protective layer easily falling off in humid and corrosive environments is solved, achieving long service life, low-cost maintenance and efficient transmission.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIAN RUILI MASCH MFG CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-06-26
AI Technical Summary
Existing circular chain chains have thin protective layers and poor adhesion in humid and corrosive environments, making them prone to falling off. This leads to corrosion and rust on the metal substrate, shortening their service life. Furthermore, the chain joints are tightly connected, requiring complete disassembly when local damage occurs, increasing maintenance costs and safety hazards.
The chain components are coated with an anti-corrosion and anti-rust layer, and structures such as sealing ring gaskets and convex cylinders are used. Combined with the screw and protrusion design, sealing and easy disassembly are achieved. The joint gaps are sealed by structures such as bearing rings and limit ring grooves to prevent corrosive media from entering.
It effectively isolates moisture and corrosive media, extends service life, reduces maintenance costs, improves operation and maintenance efficiency, ensures transmission stability and reliability, and adapts to various working conditions.
Smart Images
Figure CN224414250U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chain technology, and in particular to a corrosion-resistant and rust-proof circular link chain. Background Technology
[0002] In numerous industries such as mining, chemical, and food processing, circular link chains serve as key transmission and conveying components, undertaking important tasks such as material handling and power transmission. However, when chains are exposed to humid, corrosive (such as acid, alkali, and salt spray environments) and high-wear conditions for extended periods, they are prone to rust and breakage. This not only affects the normal operation of equipment but also increases maintenance costs and safety hazards.
[0003] Existing circular link chains typically have thin protective layers with poor adhesion, making them prone to detachment and failure. This exposes the metal substrate, which is then exposed to rapid corrosion and rust in humid or acidic / alkaline environments, shortening its service life. Furthermore, the chain joints are tightly connected and lack convenient disassembly structures. When a part is damaged, the entire chain must be disassembled, consuming significant manpower and time, increasing equipment downtime and maintenance costs. In addition, the gaps in the chain joints are not effectively sealed, allowing moisture and corrosive media to easily enter the interior, causing corrosion and jamming of critical components such as pins and sleeves, reducing transmission efficiency and reliability. Utility Model Content
[0004] The purpose of this invention is to solve the problems of existing circular link chains, such as thin protective layers, poor adhesion, easy detachment and failure, direct exposure of the metal substrate, rapid corrosion and rusting in humid, acidic and alkaline environments, and shortened service life. Therefore, this invention proposes an anti-corrosion and rust-proof circular link chain.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a corrosion-resistant and rust-proof circular link chain, comprising ten cylinders, with a first connecting member between each end of an adjacent cylinder, and a second connecting member between each adjacent first connecting member. A second annular groove is formed on one side wall of each first connecting member near both ends. A bearing ring is embedded and rotatably connected to the inside of each second annular groove. A sealing ring gasket is embedded in the inside of each second annular groove near the bearing ring. A fixed cylinder is provided inside each cylinder. One end of the fixed cylinder passes through the bearing ring and the sealing ring gasket and is fixedly connected to the second connecting member. An embedded hole is formed on the surface of the second connecting member near both ends on the other side. A protrusion is embedded and rotatably connected to the inside of each embedded hole. A screw is threadedly connected to the inside of the fixed cylinder near one end, and one end of the screw is fixedly connected to the protrusion.
[0006] Preferably, a first annular groove is provided at both ends of the cylinder and near the inner wall, and a convex cylinder is embedded inside the first annular groove, and the convex cylinder is fixedly connected to the first connecting member.
[0007] Preferably, the surfaces of the cylinder, the first connector, the second connector, the fixed cylinder, and the protrusion are all coated with an anti-corrosion and anti-rust layer.
[0008] Preferably, both ends of the first connector and the second connector are rounded.
[0009] Preferably, the first connector is adapted to the second connector.
[0010] Preferably, the length of the fixed cylinder is less than the length of the cylindrical cylinder.
[0011] Preferably, each of the second connectors has a three-way hole inside, and both ends of the three-way hole are connected to the fixed cylinder.
[0012] Preferably, the inner wall of the fixed cylinder is symmetrically provided with circular holes near the center.
[0013] Preferably, a limiting ring groove is formed on the inner wall of the recessed hole near the center, and a limiting ring plate is embedded and rotatably connected inside the limiting ring groove, and the limiting ring plate is fixedly connected to the protrusion.
[0014] Preferably, a cross groove is provided at one end of the protrusion and near the center.
[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0016] 1. In this utility model, the surface of each component of the chain is coated with an anti-corrosion and anti-rust layer, and with the sealing ring gasket, convex cylinder and other structures, it can effectively isolate moisture and corrosive media, and can still operate stably for a long time in humid, acid and alkali and salt spray environments, greatly extending its service life.
[0017] 2. In this utility model, through the design of screws, protrusions, and embedded holes, damaged chain links can be quickly disassembled and replaced without special tools, resulting in low local repair costs, reduced equipment downtime, and improved operation and maintenance efficiency.
[0018] 3. In this utility model, the chain joint gaps are sealed by the bearing ring, sealing ring gasket and limiting ring groove, preventing corrosive media from entering the interior, protecting the pins, sleeves and other components, and ensuring transmission stability and reliability.
[0019] 4. In this utility model, through the combination of various materials and structures (such as anti-corrosion and anti-rust layers, different connector designs), it can be adapted to the humid, corrosive, and high-wear working conditions of different industries such as mining, chemical, and food, and meet diverse needs. Attached Figure Description
[0020] Figure 1 This utility model provides a three-dimensional view of the overall structure of an anti-corrosion and rust-proof circular link chain;
[0021] Figure 2 A cross-sectional view of the overall structure of an anti-corrosion and rust-proof circular link chain is provided for this utility model;
[0022] Figure 3 This utility model proposes a corrosion-resistant and rust-proof circular link chain. Figure 2 Enlarged view of the structure of area A in the middle;
[0023] Figure 4 A vertical sectional view of the overall structure of an anti-corrosion and rust-proof circular link chain is provided for this utility model;
[0024] Figure 5 This utility model proposes a corrosion-resistant and rust-proof circular link chain. Figure 4 Enlarged view of the structure in area B.
[0025] Legend: 1. Cylinder; 2. First connector; 3. First annular groove; 4. Convex cylinder; 5. Second annular groove; 6. Bearing ring; 7. Sealing ring gasket; 8. Second connector; 9. Fixed cylinder; 10. Embedded hole; 11. Limiting annular groove; 12. Limiting annular plate; 13. Protrusion; 14. Screw; 15. T-hole; 16. Round hole; 17. Cross groove. Detailed Implementation
[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0028] Example 1, as Figure 1-5 As shown, this utility model provides a corrosion-resistant and rust-proof circular link chain, including ten cylinders 1. A first connector 2 is provided between the two ends of adjacent cylinders 1, and a second connector 8 is provided between adjacent first connectors 2. A second ring groove 5 is opened on one side wall of the first connector 2 near both ends. A bearing ring 6 is embedded and rotatably connected to the bearing ring 6 inside the second ring groove 5. A sealing ring gasket 7 is embedded in the second ring groove 5 near the bearing ring 6. A fixing cylinder 9 is provided inside each cylinder 1. One end of the fixing cylinder 9 passes through the bearing ring 6 and the sealing ring gasket 7 and is fixedly connected to the second connector 8. An embedded hole 10 is opened on the surface of the second connector 8 near both ends. A protrusion 13 is embedded and rotatably connected to the second connector 8 inside the embedded hole 10. A screw 14 is threadedly connected to the inside of the fixing cylinder 9 near one end. One end of the screw 14 is fixedly connected to the protrusion 13.
[0029] The overall effect of Embodiment 1 is as follows: First connecting members 2 are provided between the two ends of adjacent cylinders 1, and second connecting members 8 are provided between adjacent first connecting members 2. Second annular grooves 5 are formed on one side wall of each first connecting member 2 near both ends. Bearing rings 6 are embedded and rotatably connected within each second annular groove 5, allowing the two ends of the first connecting members 2 to rotate at the two ends of the cylinder 1. Sealing ring gaskets 7 are embedded within each second annular groove 5 near the bearing rings 6, improving the sealing between the first connecting members 2 and the second connecting members 8. The cylinder 1 has a fixed cylinder 9 inside. One end of the fixed cylinder 9 passes through the bearing ring 6 and the sealing ring gasket 7 and is fixedly connected to the second connecting member 8. On the other side, the surface of the second connecting member 8 and near both ends are provided with a recessed hole 10. The recessed hole 10 is fitted with a protrusion 13 and rotatably connected to the bearing. The fixed cylinder 9 is threaded with a screw 14 inside and near one end. One end of the screw 14 is fixedly connected to the protrusion 13. This allows the screw 14 to rotate and disengage from or be embedded in the fixed cylinder 9 by rotating the protrusion 13, which facilitates the disassembly and installation of the chain.
[0030] Example 2, as Figure 1-5 As shown, both ends of the cylinder 1 and near the inner wall are provided with first annular grooves 3, and convex cylinders 4 are embedded inside the first annular grooves 3. The convex cylinders 4 are fixedly connected to the first connecting member 2. The surfaces of the cylinder 1, the first connecting member 2, the second connecting member 8, the fixed cylinder 9 and the protrusion 13 are all coated with an anti-corrosion and anti-rust layer. Both ends of the first connecting member 2 and the second connecting member 8 are rounded. The first connecting member 2 and the second connecting member 8 are adapted to each other. The length of the fixed cylinder 9 is less than the length of the cylinder 1. One of the second connecting members 8 is provided with a three-way hole 15 inside, and both ends of the three-way hole 15 are connected to the fixed cylinder 9. The inner wall of the fixed cylinder 9 and near the center are symmetrically provided with round holes 16. The inner wall of the embedded hole 10 and near the center is provided with a limiting annular groove 11. The limiting annular groove 11 is embedded and rotatably connected with a limiting annular plate 12 inside the limiting annular groove 11. The limiting annular plate 12 is fixedly connected to the protrusion 13. One end of the protrusion 13 and near the center is provided with a cross groove 17.
[0031] The overall effect of Embodiment 2 is as follows: First annular grooves 3 are formed at both ends of the cylinder 1 near its inner wall; convex cylinders 4 are embedded inside each of the first annular grooves 3, and the convex cylinders 4 are fixedly connected to the first connecting member 2, thus positioning the first connecting member 2; the surfaces of the cylinder 1, the first connecting member 2, the second connecting member 8, the fixing cylinder 9, and the convex member 13 are all coated with an anti-corrosion and anti-rust layer, improving the chain's corrosion and rust resistance; the rounded ends of the first connecting member 2 and the second connecting member 8 improve the chain's aesthetics; the matching of the first connecting member 2 and the second connecting member 8 improves the chain's performance; and the shorter length of the fixing cylinder 9 compared to the cylinder 1 prevents the fixing cylinder 9 from passing through. The cylindrical tube 1 has the following features: A three-way hole 15 is provided inside each of the second connecting parts 8, with both ends of the three-way hole 15 connected to the fixed tube 9, facilitating oil filling of the fixed tube 9; symmetrical circular holes 16 are provided on the inner wall of the fixed tube 9 near the center, allowing oil to enter the inner wall of the cylindrical tube 1 through the circular holes 16; a limiting ring groove 11 is provided on the inner wall of the embedded hole 10 near the center, with a limiting ring plate 12 embedded and rotatably connected inside the limiting ring groove 11. The limiting ring plate 12 is fixedly connected to the protrusion 13, limiting the protrusion 13; a cross groove 17 is provided on one end of the protrusion 13 near the center, facilitating rotation of the protrusion 13.
[0032] Working principle: During assembly, the convex cylinder 4 is embedded into the first annular groove 3 at both ends of the cylinder 1, so that the first connecting piece 2 is initially connected to the cylinder 1. The bearing ring 6 and the sealing ring gasket 7 are installed in sequence in the second annular groove 5 of the first connecting piece 2. One end of the fixed cylinder 9 is inserted through the bearing ring 6 and the sealing ring gasket 7 and then fixedly connected to the second connecting piece 8. The convex piece 13 is embedded into the recessed hole 10 of the second connecting piece 8 on the other side, so that the limiting ring plate 12 is engaged in the limiting ring groove 11. The convex piece 13 is rotated through the cross groove 17, which drives the screw 14 to rotate in the threaded rotation of the fixed cylinder 9 until the convex piece 13 is tightly connected to the recessed hole 10. Ten cylinders 1 and corresponding parts are connected in this way to form a complete chain. During operation, the chain is driven by force, and the cylinder 1, the first connecting piece 2, and the second connecting piece are connected. 8. Coordinated movement: the bearing ring 6 ensures flexible rotation at the joint; the sealing ring gasket 7 and the convex cylinder 4 seal the gaps to prevent corrosive media from entering; the anti-corrosion and anti-rust layer on the surface of each component isolates external erosion, ensuring stable operation of the chain in harsh environments. If lubricant is needed, it can be injected into the fixed cylinder 9 through the three-way hole 15 and the round hole 16 to improve the smoothness of rotation. When disassembling and replacing, rotate the convex part 13 in the opposite direction through the cross groove 17 to make the screw 14 unscrew from the fixed cylinder 9. The convex part 13 moves with the limiting ring plate 12 in the limiting ring groove 11 and disengages from the embedded hole 10, separating the second connecting part 8 from the fixed cylinder 9. Remove the convex cylinder 4 to separate the first connecting part 2 from the round cylinder 1, and the damaged chain link can be disassembled. After replacing the new chain link, the repair is completed by reversing the assembly steps.
[0033] The wiring diagram of the sealing ring gasket 7 in this utility model is common knowledge in the field. Its working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring arrangement of the sealing ring gasket 7 will not be explained in detail.
[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A corrosion-resistant and rust-proof circular link chain, comprising ten cylinders (1), characterized in that: Each of the adjacent cylindrical sections (1) is provided with a first connecting member (2) between its two ends, and a second connecting member (8) is provided between each of the adjacent first connecting members (2). A second annular groove (5) is provided on one side wall of the first connecting member (2) near both ends. A bearing ring (6) is embedded and rotatably connected inside the second annular groove (5). A sealing ring gasket (7) is embedded inside the second annular groove (5) near the bearing ring (6). A fixed cylinder (9) is provided inside the cylindrical section (1). One end of the fixed cylinder (9) passes through the bearing ring (6) and the sealing ring gasket (7) and is fixedly connected to the second connecting member (8). An embedded hole (10) is provided on the surface of the second connecting member (8) near both ends on the other side. A protrusion (13) is embedded and rotatably connected inside the embedded hole (10). A screw (14) is threaded inside the fixed cylinder (9) near one end. One end of the screw (14) is fixedly connected to the protrusion (13).
2. The anti-corrosion and rust-proof circular link chain according to claim 1, characterized in that: The cylinder (1) has a first annular groove (3) at both ends and near the inner wall. A convex cylinder (4) is embedded in the inside of the first annular groove (3). The convex cylinder (4) is fixedly connected to the first connector (2).
3. The anti-corrosion and rust-proof circular link chain according to claim 1, characterized in that: The surfaces of the cylinder (1), the first connector (2), the second connector (8), the fixed cylinder (9), and the protrusion (13) are all coated with an anti-corrosion and anti-rust layer.
4. The anti-corrosion and rust-proof circular link chain according to claim 1, characterized in that: Both ends of the first connector (2) and the second connector (8) are rounded.
5. The anti-corrosion and rust-proof circular link chain according to claim 1, characterized in that: The first connector (2) is adapted to the second connector (8).
6. The anti-corrosion and rust-proof circular link chain according to claim 1, characterized in that: The length of the fixed cylinder (9) is less than the length of the cylindrical cylinder (1).
7. The anti-corrosion and rust-proof circular link chain according to claim 1, characterized in that: One of the second connectors (8) has a three-way hole (15) inside, and both ends of the three-way hole (15) are connected to the fixed cylinder (9).
8. The anti-corrosion and rust-proof circular link chain according to claim 7, characterized in that: The inner wall of the fixed cylinder (9) is symmetrically provided with round holes (16) near the center.
9. The anti-corrosion and rust-proof circular link chain according to claim 1, characterized in that: A limiting ring groove (11) is provided on the inner wall of the hole (10) near the center. A limiting ring plate (12) is embedded and rotatably connected inside the limiting ring groove (11). The limiting ring plate (12) is fixedly connected to the protrusion (13).
10. The anti-corrosion and rust-proof circular link chain according to claim 1, characterized in that: A cross groove (17) is provided at one end of the protrusion (13) and near the center.