Stainless steel chain self-lubricating hinge structure

Abstract

The utility model discloses a stainless steel chain self-lubricating hinge structure, which belongs to the technical field of steel chains, and comprises two first chain main plates and two second chain main plates, the inner sides of the two first chain main plates are respectively and movably abutted against the outer sides of the corresponding second chain main plates; two plug pin oil storage pipes are movably inserted into the two first chain main plates, a plurality of first oil outlet holes are formed in the surfaces of the two plug pin oil storage pipes, two outer cylinders are fixedly installed between the two second chain main plates, and the outer side of one plug pin oil storage pipe is movably inserted into the corresponding outer cylinder; a plurality of second oil outlet holes are formed in the outer sides of the two outer cylinders, and sealing plugs are movably connected to the inner sides of the two plug pin oil storage pipes in an inserted mode. The sealing plug and the bolt oil storage pipe are fixed through mutual matching of the pull ring, the inserting rod, the T-shaped sliding block and the limiting rod, so that the sealing plug cannot be thrown out when the chain works, potential safety hazards are greatly reduced, and the practicability is wider.

Description

Technical Field

[0001] This utility model relates to the field of steel chain technology, and in particular to a self-lubricating hinge structure for stainless steel chains. Background Technology

[0002] A chain is generally a metal link or ring, usually used for mechanical transmission or traction, and as a chain-like object to obstruct traffic passages, such as in streets, river or harbor entrances. Currently, conveyor chains used in production are composed of individual links. During operation, the chain is often subjected to traction, which can lead to breakage or loosening. The quality of the connection directly affects the chain's service life and safety, thus creating significant safety hazards in production.

[0003] In existing stainless steel chain technology, the oil filling port is generally blocked by a sealing plug. Therefore, when oil needs to be added, the sealing plug needs to be removed so that the lubricating oil can be poured from the oil filling port into the oil storage tube for storage. However, the existing method cannot fix the sealing plug, which may cause the sealing plug to be thrown out when the chain is working, greatly increasing the safety hazard and limiting its practicality. Therefore, we propose a self-lubricating hinge structure for stainless steel chains to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a self-lubricating hinge structure for stainless steel chains to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A self-lubricating hinge structure for a stainless steel chain includes: two primary chain mains and two secondary chain mains. The inner sides of the two primary chain mains are movably abutted against the outer sides of their respective secondary chain mains. Two pin-type oil storage tubes are movably inserted into the interior of the two primary chain mains. Multiple primary oil outlet holes are formed on the surface of the two pin-type oil storage tubes. Two outer cylinders are fixedly installed between the two secondary chain mains. The outer side of one of the pin-type oil storage tubes is movably inserted into the interior of its corresponding outer cylinder. Multiple secondary oil outlet holes are formed on the outer sides of the two outer cylinders. A sealing plug is movably inserted into the inner side of each of the two pin-type oil storage tubes. Two T-shaped grooves are formed on the top of one of the primary chain mains. T-shaped sliders are slidably connected inside each of the two T-shaped grooves. Limiting rods are fixedly installed on one side of each of the two T-shaped sliders. The outer sides of the two limiting rods are movably inserted into the interior of the corresponding pin-type oil storage tubes and sealing plugs.

[0007] Preferably, a connecting plate is fixedly installed on the outer side of each of the two T-shaped sliders, and two plug rods are slidably connected inside each of the two connecting plates. A fixing ring is fixedly installed on the outer side of each of the four plug rods, and a first-order return spring is fixedly connected to the bottom of each of the four fixing rings. The bottom ends of the four first-order return springs are fixedly connected to the top of the corresponding connecting plate. Multiple plug slots are opened on the top of one of the first chain main plates, and the bottom ends of the four plug rods are movably inserted into the interior of the corresponding plug slots.

[0008] Preferably, telescopic columns are fixedly installed on the side walls of both T-shaped slides, one end of each telescopic column is fixedly installed on the outside of the corresponding T-shaped slider, and a second return spring is fixedly connected to the side walls of both T-shaped slides, one end of each second return spring is fixedly connected to the outside of the corresponding T-shaped slider, and the two second return springs are sleeved on the outside of the corresponding telescopic columns.

[0009] Preferably, both ends of the two pin oil reservoirs are threaded on the outer side, and both ends of the two pin oil reservoirs are threaded with nuts. The four nuts are respectively movably abutted against the outer side of the corresponding first chain main board on their respective sides.

[0010] Preferably, each of the two first chain main plates and the two second chain main plates has two connecting holes on its surface, and the outer sides of the two pin oil storage tubes are movably abutted against the interior of the corresponding connecting holes.

[0011] Preferably, the four reset springs are sleeved on the outside of the corresponding plug rods, and the tops of the two plug rods on the same side are fixedly installed with the same pull ring.

[0012] In this utility model, a self-lubricating hinge structure for a stainless steel chain is described. By pulling the pull ring upward, the plug rod begins to move upward, causing it to disengage from the plug groove. This removes the restriction on the movement of the connecting plate and the T-shaped slider. Then, by pulling the pull ring horizontally, the connecting plate and the T-shaped slider begin to move along the T-shaped groove, further causing the limiting rod to move along the T-shaped groove. This disengages the limiting rod from the inside of the pin oil reservoir and the sealing plug. Simultaneously, by removing the sealing plug, lubricating oil is injected into the pin oil reservoir. The sealing plug is then reinserted into the pin oil reservoir for sealing. The above operation is repeated in reverse so that the limiting rod re-inserts into the pin oil reservoir and the sealing plug, thus fixing the sealing plug and the pin oil reservoir together. This prevents the sealing plug from being thrown out during chain operation, greatly reducing safety hazards and broadening its applicability.

[0013] In this utility model, a self-lubricating hinge structure for stainless steel chains is described. Lubricating oil flows out through the No. 1 oil outlet hole on the surface of the pin oil storage tube to lubricate the hinge joint between the No. 1 and No. 2 chain main plates. At the same time, since the pin oil storage tube is inserted into the outer cylinder, the lubricating oil flows into the inner cylinder through the No. 1 oil outlet hole and then flows out through the No. 2 oil outlet hole on the surface of the outer cylinder to lubricate the entire No. 1 and No. 2 chain main plates, thereby effectively preventing the chain from jamming.

[0014] This utility model has a reasonable structural design. The cooperation between the pull ring, the plug rod, the T-shaped slider and the limiting rod fixes the sealing plug and the oil storage tube of the pin, so that the sealing plug will not be thrown out when the chain is working, which greatly reduces the safety hazards and has a wider range of applications. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a stainless steel chain self-lubricating hinge structure proposed in this utility model.

[0016] Figure 2 This is a cross-sectional structural diagram of a stainless steel chain self-lubricating hinge structure proposed in this utility model.

[0017] Figure 3 for Figure 1 A magnified view of part A in the middle;

[0018] Figure 4 for Figure 2 A magnified view of part B in the middle section.

[0019] In the diagram: 1. Chain main board No. 1; 2. Chain main board No. 2; 3. Outer cylinder; 4. Pin oil reservoir pipe; 5. Oil outlet No. 1; 6. Sealing plug; 7. Oil outlet No. 2; 8. T-shaped slider; 9. Limiting rod; 10. Connecting plate; 11. Insertion rod; 12. Fixing ring; 13. Return spring No. 1; 14. Pull ring; 15. Insertion groove; 16. Connecting hole; 17. T-shaped slide groove; 18. Telescopic column; 19. Return spring No. 2; 20. Nut. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-4A self-lubricating hinge structure for stainless steel chains includes: two primary chain mains 1 and two secondary chain mains 2. The inner sides of the two primary chain mains 1 are movably abutted against the outer sides of the corresponding secondary chain mains 2. Two pin-type oil storage tubes 4 are movably inserted into the interior of the two primary chain mains 1. Multiple primary oil outlet holes 5 are opened on the surface of the two pin-type oil storage tubes 4. Two outer cylinders 3 are fixedly installed between the two secondary chain mains 2. The outer side of one of the pin-type oil storage tubes 4 is movably inserted into the interior of the corresponding outer cylinder 3. Multiple secondary oil outlet holes 7 are opened on the outer sides of the two outer cylinders 3. Sealing plugs 6 are movably inserted into the inner sides of the two pin-type oil storage tubes 4. Two T-shaped sliding grooves 17 are opened on the top of one of the primary chain mains 1. T-shaped sliders 8 are slidably connected inside the two T-shaped sliding grooves 17. Limiting rods 9 are fixedly installed on one side of each of the two T-shaped sliders 8. The outer sides of the two limiting rods 9 are movably inserted into the interior of the corresponding pin-type oil storage tubes 4 and sealing plugs 6.

[0022] In this embodiment, connecting plates 10 are fixedly installed on the outer sides of both T-shaped sliders 8. Two plug rods 11 are slidably connected inside the two connecting plates 10. Fixing rings 12 are fixedly installed on the outer sides of the four plug rods 11. A first-order return spring 13 is fixedly connected to the bottom of each of the four fixing rings 12. The bottom ends of the four first-order return springs 13 are fixedly connected to the top of the corresponding connecting plates 10. Multiple plug slots 15 are opened on the top of one of the first-order chain main plates 1. The bottom ends of the four plug rods 11 are movably inserted into the interior of the corresponding plug slots 15, so as to restrict the movement of the T-shaped sliders 8 by means of the plug rods 11 and the plug slots 15.

[0023] In this embodiment, telescopic columns 18 are fixedly installed on the side walls of both T-shaped slides 17. One end of each telescopic column 18 is fixedly installed on the outside of the corresponding T-shaped slider 8. A second return spring 19 is fixedly connected to the side walls of both T-shaped slides 17. One end of each second return spring 19 is fixedly connected to the outside of the corresponding T-shaped slider 8. The second return spring 19 is sleeved on the outside of the corresponding telescopic column 18. The second return spring 19 and the telescopic column 18 make the T-shaped slider 8 more stable when moving.

[0024] In this embodiment, threads are provided on the outer sides of both ends of the two pin oil storage tubes 4, and nuts 20 are threadedly connected to the outer sides of both ends of the two pin oil storage tubes 4. The four nuts 20 are respectively movably abutted against the outer side of the corresponding first chain main board 1 on the side closest to each other, so that the pin oil storage tubes 4 are connected more stably through the nuts 20.

[0025] In this embodiment, two connecting holes 16 are opened on the surface of the two first chain main plates 1 and the two second chain main plates 2. The outer sides of the two pin oil storage tubes 4 are movably abutted against the inside of the corresponding connecting holes 16. Four first return springs 13 are sleeved on the outer side of the corresponding plug rods 11. The top of the two plug rods 11 located on the same side is fixedly installed with the same pull ring 14, so as to facilitate the movement of the plug rods 11 by pulling the pull ring 14.

[0026] In this embodiment, during use, the user connects the first chain main plate 1, the second chain main plate 2, the connecting hole 16, the pin oil reservoir 4, and the outer cylinder 3 to form the entire chain. Then, by pulling the pull ring 14 upward, the plug rod 11 is moved upward, causing it to disengage from the plug groove 15. This removes the plug rod 11 from restricting the movement of the connecting plate 10 and the T-shaped slider 8. Then, by pulling the pull ring 14 horizontally, the connecting plate 10 and the T-shaped slider 8 move along the T-shaped slide groove 17, further causing the limiting rod 9 to move along the T-shaped slide groove 17. This disengages the limiting rod 9 from the pin oil reservoir 4 and the sealing plug 6, thus removing the limiting rod 9 from fixing the sealing plug 6 and the pin oil reservoir 4. Simultaneously, releasing the pull ring 14 allows the plug rod 11 to re-insert into the plug groove 15 under the action of the first return spring 13. Lubricating oil is injected into the pin oil reservoir 4 by removing the sealing plug 6, and then the sealing plug 6 is inserted into the pin oil reservoir 4 to seal it. The above operation is then repeated in reverse so that the limiting rod 9 is reinserted into the pin oil reservoir 4 and the sealing plug 6, thereby fixing the sealing plug 6 and the pin oil reservoir 4. This prevents the sealing plug 6 from being thrown out when the chain is working, greatly reducing safety hazards and making it more practical. At the same time, during operation, lubricating oil flows out through the first oil outlet 5 on the surface of the pin oil reservoir 4 to lubricate the hinge joint of the first chain main plate 1 and the second chain main plate 2. Since the pin oil reservoir 4 is inserted into the outer cylinder 3, the lubricating oil flows into the outer cylinder 3 through the first oil outlet 5, and then flows out through the second oil outlet 7 on the surface of the outer cylinder 3 to lubricate the entire first chain main plate 1 and the second chain main plate 2, thereby effectively preventing the chain from jamming.

[0027] The above provides a detailed description of a stainless steel chain self-lubricating hinge structure. Specific embodiments have been used to illustrate the principle and implementation of this utility model. These embodiments are merely illustrative and are intended to help understand the method and core concept of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this utility model.

Claims

1. A self-lubricating hinge structure for a stainless steel chain, characterized in that, include: Two primary chain plates (1) and two secondary chain plates (2) are provided. The inner sides of the two primary chain plates (1) are respectively movably abutted against the outer sides of the corresponding secondary chain plates (2). Two pin-type oil storage tubes (4) are movably inserted into the interior of the two primary chain plates (1). Multiple primary oil outlet holes (5) are opened on the surface of the two pin-type oil storage tubes (4). Two outer cylinders (3) are fixedly installed between the two secondary chain plates (2). The outer side of one of the pin-type oil storage tubes (4) is movably inserted into the corresponding outer cylinder (3). Inside, multiple No. 2 oil outlet holes (7) are opened on the outer side of the two outer cylinders (3), and sealing plugs (6) are movably inserted into the inner side of the two pin oil storage pipes (4). Two T-shaped grooves (17) are opened on the top of one of the No. 1 chain main board (1). T-shaped sliders (8) are slidably connected inside the two T-shaped grooves (17). Limiting rods (9) are fixedly installed on one side of the two T-shaped sliders (8). The outer side of the two limiting rods (9) is movably inserted into the corresponding pin oil storage pipe (4) and sealing plug (6).

2. A self-lubricating articulation structure for stainless steel chains according to claim 1, characterized in that, Two connecting plates (10) are fixedly installed on the outer sides of the two T-shaped sliders (8). Two plug rods (11) are slidably connected inside the two connecting plates (10). Fixed rings (12) are fixedly installed on the outer sides of the four plug rods (11). A first reset spring (13) is fixedly connected to the bottom of the four fixed rings (12). The bottom ends of the four first reset springs (13) are fixedly connected to the top of the corresponding connecting plate (10). Multiple plug slots (15) are opened on the top of one of the first chain main plates (1). The bottom ends of the four plug rods (11) are movably inserted into the interior of the corresponding plug slots (15).

3. The stainless steel chain self-lubricating hinge structure according to claim 1, characterized in that, Telescopic columns (18) are fixedly installed on the side walls of both T-shaped slides (17). One end of each telescopic column (18) is fixedly installed on the outside of the corresponding T-shaped slider (8). A second return spring (19) is fixedly connected to the side walls of both T-shaped slides (17). One end of each second return spring (19) is fixedly connected to the outside of the corresponding T-shaped slider (8). The two second return springs (19) are sleeved on the outside of the corresponding telescopic column (18).

4. The stainless steel chain self-lubricating hinge structure according to claim 1, characterized in that, Both ends of the two pin oil storage tubes (4) are provided with threads, and both ends of the two pin oil storage tubes (4) are threaded with nuts (20). The four nuts (20) are respectively moved to the outside of the corresponding first chain main board (1) on the side closest to each other.

5. A self-lubricating articulation construction for stainless steel chains as claimed in claim 1, wherein Two connecting holes (16) are opened on the surface of the two first chain main plates (1) and the two second chain main plates (2), and the outer sides of the two pin oil storage pipes (4) move to abut against the interior of the corresponding connecting holes (16).

6. A self-lubricating articulation construction for stainless steel chains as claimed in claim 2, wherein Four reset springs (13) are sleeved on the outside of the corresponding plug rods (11), and the top of the two plug rods (11) on the same side are fixedly installed with the same pull ring (14).

Images