A fastener rust-proof oil filtering device
By designing a fastener rust prevention and oil filtration device, the device utilizes a rotating stirring rod and centrifugal force to achieve uniform oiling and oil recovery for fasteners, solving the problems of uneven oiling and waste, improving the rust prevention effect and reducing costs.
Patent Information
- Application Number
- CN202522126910.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-09
AI Technical Summary
Existing fastener rust prevention treatments suffer from problems such as uneven oil application, insufficient oil application in dead corners, and serious oil waste, resulting in poor rust prevention effects and high costs.
A fastener rust prevention and oil filtration device was designed. The fastener is broken up by a rotating container and a stirring rod. The centrifugal force is used to make the rust prevention oil evenly penetrate the thread gaps and dead corners, and the excess oil is recovered by centrifugal force.
It achieves uniform oiling of fastener surfaces and dead corners, improves the rust prevention qualification rate, significantly reduces oil consumption, and saves costs.
Smart Images

Figure CN224673025U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of fastener rust prevention equipment, specifically a fastener rust prevention oil filtration device. Background Technology
[0002] In the production and storage of fasteners (such as bolts for mechanical connections and nuts for construction), rust prevention is a key process for extending their service life. Applying rust-preventive oil to the surface isolates them from air and moisture, preventing oxidation and corrosion. However, existing methods of applying rust-preventive oil to fasteners (mostly manual immersion or spraying) have the following technical drawbacks, limiting the quality and cost-effectiveness of the treatment: Uneven oiling results in poor rust prevention: During manual soaking, fasteners tend to stack and clump together, preventing the rust-preventive oil from contacting the stacked areas and creating "missed areas." These missed areas are prone to rusting during subsequent storage. Spraying oiling only covers the surface, leaving gaps in threads, the inside of gaskets, and other hard-to-reach areas untreated, resulting in a low rust prevention pass rate. Excess oil is difficult to recover, leading to significant waste: After oiling, a large amount of excess oil adheres to the surface of the fasteners. Traditional methods rely solely on natural dripping, resulting in low recovery efficiency and high oil loss per ton of fasteners. Utility Model Content
[0003] The purpose of this invention is to provide a fastener anti-rust and oil filtering device to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a fastener rust prevention and oil filtering device, comprising an oil tank, two sets of connecting frames fixedly connected to the upper sides of the oil tank, three sets of first guide rods fixedly connected between the connecting frames and the upper part of the oil tank, a first threaded rod rotatably connected between one side of the connecting frame and the upper part of the oil tank, a first motor fixedly connected to the upper part of the connecting frame, the power end of the first motor fixedly connected to the upper part of the first threaded rod, three sets of first lugs slidably connected to the outer sides of the three sets of first guide rods, a set of first lugs threadedly connected to the outer side of one set of first threaded rods, a bent frame fixedly connected between the first lugs on the same side, a rotating shaft rotatably connected to the lower part of one side of the bent frame, a connecting gear fixedly connected to the outer side of the rotating shaft, a power gear meshing with the upper part of the connecting gear, a second motor fixedly connected to the upper part of one side of the bent frame, the power end of the second motor fixedly connected to the power gear, a holding cylinder fixedly connected to the other side of the rotating shaft, a fixed rod rotatably connected inside the other end of the holding cylinder, one end of the fixed rod fixedly connected to the other side of the bent frame.
[0005] Preferably, the container is internally fixedly connected with several sets of partition plates.
[0006] Preferably, the other end of the fixing rod penetrates the isolation plate and is rotatably connected to the inner wall of the container, and several sets of stirring rods are fixedly connected to the outside of the fixing rod.
[0007] Preferably, a door is rotatably connected to the outer side of the container, and a locking piece is fixedly connected to the middle side of the container at the middle of the door.
[0008] Preferably, an oil inlet pipe is fixedly connected to one side of the upper part of the oil tank, and an oil outlet pipe is fixedly connected to the other side of the lower part of the oil tank.
[0009] Preferably, the oil tank has mounting grooves on its front and rear sides. A second guide rod is fixedly connected inside one side of the mounting groove, and a second lug is slidably connected to the outside of the second guide rod. A second threaded rod is rotatably connected inside the other side of the mounting groove, and a second lug is threadedly connected to the outside of the second threaded rod. A baffle is fixedly connected between the two second lugs, and the baffle is slidably connected inside the mounting groove.
[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses a stirring rod to simultaneously break up fasteners when the container rotates, preventing them from piling up; the rust-preventive oil fully penetrates dead corners such as thread gaps and the inside of gaskets under centrifugal force, resulting in high oil coverage and significantly improved rust prevention qualification rate; 2. This utility model also improves upon the fact that after the oiling is completed, the container rises above the oil tank and continues to rotate. Excess oil drips rapidly back into the oil tank under centrifugal force, reducing oil loss per ton of fasteners and significantly saving oil costs. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural cross-sectional view of the present invention; Figure 3 This is a three-dimensional structural cross-sectional view of the present invention.
[0012] In the diagram: 1. Oil tank; 2. Connecting frame; 3. First guide rod; 4. First lug; 5. Bent frame; 6. First threaded rod; 7. First motor; 8. Second motor; 9. Power gear; 10. Rotating shaft; 11. Connecting gear; 12. Container cylinder; 13. Fixed rod; 14. Stirring rod; 15. Isolation plate; 16. Cylinder door; 17. Oil inlet pipe; 18. Oil outlet pipe; 19. Mounting groove; 20. Second guide rod; 21. Second lug; 22. Baffle; 23. Second threaded rod; 24. Locking piece. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0014] Please see Figure 1-3 This utility model provides a technical solution: a fastener anti-rust oil filter device, including an oil tank 1. Two sets of symmetrical connecting frames 2 are bolted to the upper sides of the oil tank 1. Three sets of parallel first guide rods 3 are welded to the connecting frames 2 and the upper part of the oil tank 1. A first threaded rod 6 is rotatably connected to one side of the connecting frame 2 and the upper part of the oil tank 1 through a thrust ball bearing. A first motor 7 is fixedly connected to the upper part of the connecting frame 2 through flange bolts. The power end of the first motor 7 is fixedly connected to the upper part of the first threaded rod 6 through an elastic coupling. Three sets of first lugs 4 are slidably connected to the outer sides of the three sets of first guide rods 3. A set of first lugs 4 is threaded to the outer side of one set of first threaded rods 6. The first lugs 4 on the same side are welded together. A curved frame 5 is fixedly connected. A rotating shaft 10 is rotatably connected to the lower part of one side of the curved frame 5 via a deep groove ball bearing. A connecting gear 11 is connected to the outer side of the rotating shaft 10 via a key. A power gear 9 is meshed with the upper part of the connecting gear 11. A second motor 8 is fixedly connected to the upper part of one side of the curved frame 5 via bolts. The power end of the second motor 8 is fixedly connected to the power gear 9 via a key. A container 12 is fixedly connected to the other side of the rotating shaft 10 via welding. The container 12 has a water-permeable hole to facilitate the entry and exit of oil. A fixed rod 13 is rotatably connected to the other end of the container 12 via a deep groove ball bearing. It is coaxial with the rotating shaft 10 to enhance the rotational stability of the container 12. One end of the fixed rod 13 is fixedly welded to the other side of the curved frame 5. Several sets of partition plates 15 are fixedly connected to the inside of the container 12 by welding. The other end of the fixing rod 13 penetrates the isolation plate 15 and is rotatably connected to the inner wall of the container 12. Several sets of stirring rods 14 are fixedly connected to the outside of the fixing rod 13 by welding. When the container 12 rotates, the stirring rods 14 are fixed to break up the stacked fasteners and prevent coating from being missed. The outer side of the container 12 is connected to the door 16 by a hinge. The middle part of the door 16 is fixedly connected to the middle side of the container 12 by bolts, and a locking piece 24 is engaged with it. The locking is achieved by hand-tightening the bolts, which facilitates the installation and removal of fasteners. An oil inlet pipe 17 is connected to the upper side of the oil tank 1 via a flange. The oil inlet pipe 17 is equipped with a valve to control the oil inlet volume and is connected to an external rust-preventive oil storage tank. An oil outlet pipe 18 is connected to the lower side of the oil tank 1 via a flange. The oil tank 1 has mounting grooves 19 along its height on the front and rear sides. A second guide rod 20 is fixedly connected to one side of the mounting groove 19 by welding. A second lug 21 is slidably connected to the outside of the second guide rod 20. A second threaded rod 23 is rotatably connected to the other side of the mounting groove 19 by a deep groove ball bearing. A second lug 21 is threadedly connected to the outside of the second threaded rod 23. A baffle 22 is fixedly welded between the two second lugs 21. The baffle 22 is a transparent acrylic plate with a height adapted to the oil tank 1 to facilitate observation of the internal oiling status. An oil-resistant sealing strip is pasted on the edge to enhance the splash prevention effect. The baffle 22 is slidably connected to the inside of the mounting groove 19. The height of the baffle 22 can be adjusted by rotating the second threaded rod 23 to completely cover the upper sides of the oil tank 1 and prevent oil from splashing.
[0015] Working principle: When using this utility model, open the valve of the oil inlet pipe 17, add rust-preventive oil into the oil tank 1, and close the valve; unscrew the locking plate 24 bolts of the holding cylinder 12 and the cylinder door 16, and open the cylinder door 16 outward; evenly place the fasteners to be rust-prevented into each chamber of the holding cylinder 12, avoiding stacking in a single chamber, close the cylinder door 16, tighten the locking plate 24 bolts to ensure that the cylinder door 16 is sealed, and prevent the fasteners from falling off or the oil from leaking; Start the first motor 7 and control its forward rotation. The first motor 7 drives the first threaded rod 6 to rotate. Since the first threaded rod 6 is threadedly connected to the first lug 4 and the first lug 4 is restricted from rotating by the first guide rod 3, the bent frame 5 drives the container 12 to slowly descend along the first guide rod 3. The first motor 7 is stopped when the container 12 is completely immersed in the rust-preventive oil in the oil tank 1; the second motor 8 is started, and the second motor 8 drives the power gear 9 to rotate. The power gear 9 meshes with the connecting gear 11, driving the rotating shaft 10 to rotate synchronously with the container 12. When the container 12 rotates, the internal stirring rod 14 is kept fixed synchronously with the fixing rod 13, breaking up the stacked fasteners. Under the action of centrifugal force, the rust-preventive oil quickly penetrates the surface and gaps of the fasteners, achieving uniform oiling. After the oiling is completed, turn off the second motor 8, start the first motor 7 to reverse, drive the container 12 to rise above the oil tank 1, and stop the first motor 7; restart the second motor 8, and the container 12 continues to rotate; the excess anti-rust oil on the surface of the fasteners is thrown out under the action of centrifugal force and drips back into the oil tank 1 along the wall of the container 12.
[0016] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.
[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fastener rust prevention and oil filtering device, comprising an oil tank (1), characterized in that: Two sets of connecting frames (2) are fixedly connected to the upper sides of the oil tank (1). Three sets of first guide rods (3) are fixedly connected between the connecting frame (2) and the upper part of the oil tank (1). A first threaded rod (6) is rotatably connected between one side of the connecting frame (2) and the upper part of the oil tank (1). A first motor (7) is fixedly connected to the upper part of the connecting frame (2). The power end of the first motor (7) is fixedly connected to the upper part of the first threaded rod (6). Three sets of first lugs (4) are slidably connected to the outer side of the three sets of first guide rods (3). A set of first lugs (4) is threadedly connected to the outer side of one set of first threaded rods (6). The first lugs (4) on the same side are fixedly connected to each other. A curved frame (5) is fixedly connected. A rotating shaft (10) is rotatably connected to the lower part of one side of the curved frame (5). A connecting gear (11) is fixedly connected to the outer side of the rotating shaft (10). A power gear (9) is meshed with the upper part of the connecting gear (11). A second motor (8) is fixedly connected to the upper part of one side of the curved frame (5). The power end of the second motor (8) is fixedly connected to the power gear (9). A container (12) is fixedly connected to the other side of the rotating shaft (10). A fixed rod (13) is rotatably connected to the other end of the container (12). One end of the fixed rod (13) is fixedly connected to the other side of the curved frame (5).
2. The fastener rust prevention and oil filtering device according to claim 1, characterized in that: The container (12) has several sets of isolation plates (15) fixedly connected inside.
3. The fastener rust prevention and oil filtering device according to claim 2, characterized in that: The other end of the fixed rod (13) penetrates the isolation plate (15) and is rotatably connected to the inner wall of the container (12). Several sets of stirring rods (14) are fixedly connected to the outside of the fixed rod (13).
4. The fastener rust prevention and oil filtering device according to claim 1, characterized in that: The outer side of the container (12) is rotatably connected to a door (16), and the middle part of the door (16) is fixedly connected to the middle side of the container (12) with a locking piece (24) that cooperates with each other.
5. The fastener rust prevention and oil filtering device according to claim 1, characterized in that: An oil inlet pipe (17) is fixedly connected to one side of the upper part of the oil tank (1), and an oil outlet pipe (18) is fixedly connected to the other side of the lower part of the oil tank (1).
6. The fastener rust prevention and oil filtering device according to claim 1, characterized in that: The oil tank (1) has mounting grooves (19) on the front and rear sides. A second guide rod (20) is fixedly connected inside one side of the mounting groove (19). A second lug (21) is slidably connected to the outside of the second guide rod (20). A second threaded rod (23) is rotatably connected inside the other side of the mounting groove (19). A second lug (21) is threadedly connected to the outside of the second threaded rod (23). A baffle (22) is fixedly connected between the two second lugs (21). The baffle (22) is slidably connected inside the mounting groove (19).