Anti-corrosion fastener structure with self-repairing function

Abstract

The utility model discloses an anti-corrosion fastener structure with a self-repairing function, which comprises a fastening insertion rod, one end of the fastening insertion rod is provided with a hollow cap, and the fastening insertion rod is in threaded connection with an expandable nut for reinforcement. When in use, the outer side wall of the fastening insertion rod is sequentially provided with a multi-layer protection structure consisting of the epoxy primer layer, the microcapsule self-repairing middle layer and the polyurethane anti-corrosion finish paint layer, so that more comprehensive and more reliable anti-corrosion protection is realized; the epoxy primer layer is utilized to enhance the combination and adhesion of the microcapsule self-repairing middle layer, and when the polyurethane anti-corrosion finish paint layer on the outermost layer of the fastener assembly is damaged, the self-repairing middle layer is not damaged. The anti-corrosion repairing agent flows out through anti-corrosion microcapsule particles broken in the microcapsule self-repairing middle layer, anti-corrosion repairing is conducted on the polyurethane anti-corrosion finish paint layer in time, and therefore the fastener assembly can be suitable for various severe environments such as the humid environment and the acid-base environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener structure technical field, concretely is a kind of anticorrosive fastener structure with self-repairing function. BACKGROUND

[0002] Fastener is the general term of a kind of mechanical parts when two or more than two parts are fastened and connected to become a whole, for example, in various mechanical equipment, such as machine tool, engine and crane etc., fastener is used to connect various components, ensure the structural stability and reliability of equipment.

[0003] Fastener structure is prone to surface anticorrosive layer rupture when used in some harsh environment, which can cause fastener structure to rust and affect service life, in addition, its buffering protection performance and anti-loosening protection effect are poor, after being installed on component product, it is prone to loosening due to product vibration, therefore, we propose a new anticorrosive fastener structure with self-repairing function. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an anticorrosive fastener structure with self-repairing function to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: an anticorrosive fastener structure with self-repairing function, comprising fastening rod, one end of the fastening rod is provided with hollow cap, reinforcing expandable nut is threadedly connected on the fastening rod, the inside of the hollow cap is movably connected with worm gear connected with the fastening rod, the bottom of the worm gear is meshedly connected with worm, the inside of the worm gear and the fastening rod is respectively provided with second hollow buffer cavity and first hollow buffer cavity, liquid guide pipe is uniformly arranged on the first hollow buffer cavity, liquid outlet hole is uniformly arranged on the outer side wall of the liquid guide pipe, the outer side wall of the fastening rod is sequentially provided with epoxy primer layer, microcapsule self-repairing intermediate layer and polyurethane anticorrosive finish layer, anticorrosive microcapsule particles are uniformly arranged in the microcapsule self-repairing intermediate layer.

[0006] Preferably, second hollow bearing is arranged between one end of the worm gear and the hollow cap, so that the stability of the worm gear when moving in the hollow cap is improved.

[0007] Preferably, first hollow bearing is arranged between one side of the worm and the hollow cap, so that the worm can be guided and limited.

[0008] Preferably, output rod is arranged on one side of the worm, and the output rod penetrates the outer wall of the hollow cap.

[0009] Preferably, rotating operating member is welded on the output rod.

[0010] Preferably, the rotating operating part is provided with a protective operating port.

[0011] Preferably, the anticorrosive microcapsule particle is wrapped with an anticorrosive repair agent.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] (1), the anticorrosive fastener structure with self-repairing function through installation microcapsule self-repairing intermediate layer etc., so that fastener assembly optimizes its structure, through the outside wall of fastening rod is sequentially provided with epoxy primer layer, microcapsule self-repairing intermediate layer and polyurethane anticorrosive finish layer constitute multilayer protective structure, realize more comprehensive, more reliable anticorrosive protection, specifically, both utilize epoxy primer layer to strengthen the combination adhesion of microcapsule self-repairing intermediate layer, and when the polyurethane anticorrosive finish layer of fastener assembly outermost layer is damaged, the anticorrosive microcapsule particle in the microcapsule self-repairing intermediate layer breaks out anticorrosive repair agent, and promptly carries out anticorrosive repair to polyurethane anticorrosive finish layer, which makes fastener assembly can be applied to various harsh environments, such as humid, acid and alkali environment;

[0014] (2), the anticorrosive fastener structure with self-repairing function through the setting of second hollow buffer cavity etc., so that fastener assembly optimizes its performance, the user can inject gel type buffer paste into the second hollow buffer cavity and the first hollow buffer cavity, and make the gel type buffer paste be injected into the gap between fastening rod and component product installation port through the liquid guide pipe with liquid outlet hole on the surface, which can realize filling and sealing effect, and through its buffer performance, can improve the anti-loosening effect of fastener assembly, so that it is not easy to loosen when affected by external vibration, and the reliability and stability of fastener assembly can be effectively improved.

[0015] (3), the anticorrosive fastener structure with self-repairing function through the installation of hollow cap etc., so that when the fastener assembly is actually operated, the user can manually insert the fastening rod into the installation hole between the corresponding two component products, and then glue between the hollow cap and the component product in contact with it is fixed, then the electric screw gun drives the worm rotation through the protective operating port on the rotating operating part, and then drives the worm gear movement, which makes the fastening rod connected with the worm gear move, and drives the reinforcing expandable nut screwed on it to move to the tail of the fastening rod to realize the effect of deepening into the component product installation port, and the elastic expansion arm of the reinforcing expandable nut outer wall can lock the fastening rod and improve the firmness effect of the fastening rod during installation, and the self-locking performance of the transmission structure composed of the worm and the worm gear makes the reinforcing expandable nut not easy to slip, further optimizing the stability of the structure. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the front view structural schematic diagram of the utility model;

[0017] Figure 2 It is the side view sectional structure schematic diagram of the utility model;

[0018] Figure 3 It is the worm wheel three-dimensional structure schematic diagram of the utility model;

[0019] Figure 4 It is the fastening plug rod side wall sectional structure schematic diagram of the utility model.

[0020] In the drawing: 1, liquid guide pipe; 2, liquid outlet hole; 3, fastening plug rod; 4, reinforcing inflatable nut; 5, protective operation port; 6, rotating operating part; 7, hollow cap; 8, worm wheel; 9, worm; 10, first hollow buffer cavity; 11, first hollow bearing; 12, second hollow bearing; 13, second hollow buffer cavity; 14, output rod; 15, polyurethane anticorrosive finish layer; 16, microcapsule self-repairing intermediate layer; 17, epoxy primer layer; 18, anticorrosive microcapsule particle. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-4 The utility model provides an embodiment: a kind of anticorrosive fastener structure with self-repairing function, including fastening plug rod 3, the one end of fastening plug rod 3 is provided with hollow cap 7, reinforcing inflatable nut 4 is connected on fastening plug rod 3 by screw thread, hollow cap 7 is movably connected with the inside worm wheel 8 connected with fastening plug rod 3, the bottom of worm wheel 8 is engagedly connected with worm 9;

[0023] The side of worm 9 is provided with output rod 14, and output rod 14 penetrates the outer wall of hollow cap 7;

[0024] Rotating operating part 6 is welded on output rod 14;

[0025] Protective operation port 5 is provided on rotating operating part 6;

[0026] In use, the user can manually insert the fastening rod 3 into the mounting hole between the corresponding two component products, then glue between the hollow cap 7 and the component product in contact with it, and then use the electric screw gun to rotate the protective operation port 5 on the rotating operation member 6, drive the worm 9 to rotate, and then drive the worm gear 8 engaged with the worm 9 to move, which makes the fastening rod 3 connected with the worm gear 8 move, and the reinforcing expandable nut 4 screwed on it moves to the tail of the fastening rod 3 to realize the effect of deepening into the component product mounting hole. Through the elastic expansion arm of the reinforcing expandable nut 4, the fastening rod 3 can be locked, and the fastening effect during installation is improved. The self-locking performance of the transmission structure composed of the worm 9 and the worm gear 8 makes the reinforcing expandable nut 4 not easy to slip off, further optimizing the stability of the structure;

[0027] The worm gear 8 and the fastening rod 3 are respectively provided with a second hollow buffer cavity 13 and a first hollow buffer cavity 10, and the first hollow buffer cavity 10 is uniformly provided with a liquid guide pipe 1, and the outer side wall of the liquid guide pipe 1 is uniformly provided with a liquid outlet hole 2.

[0028] In use, the user can inject gel-type buffer paste into the second hollow buffer cavity 13 and the first hollow buffer cavity 10, and make the gel-type buffer paste pass through the liquid guide pipe 1 with the liquid outlet hole 2 on the surface to inject into the gap between the fastening rod 3 and the component product mounting hole, which can realize the filling and sealing effect, and through the buffer performance, it can improve the anti-loosening effect of the fastener assembly, so that it is not easy to loosen when affected by external vibration, and the reliability and stability of the fastener assembly can be effectively improved.

[0029] The outer side wall of the fastening rod 3 is sequentially provided with an epoxy primer layer 17, a microcapsule self-repairing intermediate layer 16 and a polyurethane anticorrosive topcoat layer 15, and the microcapsule self-repairing intermediate layer 16 is uniformly provided with anticorrosive microcapsule particles 18 in the inside.

[0030] The inside of the anticorrosive microcapsule particle 18 is wrapped with an anticorrosive repair agent.

[0031] In use, the multi-layer protection structure composed of the epoxy primer layer 17, the microcapsule self-repairing intermediate layer 16 and the polyurethane anticorrosive topcoat layer 15 on the outer side wall of the fastening rod 3 realizes more comprehensive and reliable anticorrosive protection. Specifically, the epoxy primer layer 17 enhances the adhesion of the microcapsule self-repairing intermediate layer 16, and when the polyurethane anticorrosive topcoat layer 15 on the outermost layer of the fastener assembly is damaged, the anticorrosive repair agent flows out from the broken anticorrosive microcapsule particle 18 in the microcapsule self-repairing intermediate layer 16 to repair the polyurethane anticorrosive topcoat layer 15 in time, which makes the fastener assembly suitable for various harsh environments such as humid, acidic and alkaline environments.

[0032] When the microcapsule self-repairing intermediate layer 16 is prepared, the anticorrosive repairing agent is first wrapped inside the anticorrosive microcapsule particles 18 by using in-situ polymerization method, the prepared anticorrosive microcapsule particles 18 are uniformly dispersed in a solvent to form a microcapsule suspension, and the microcapsule suspension is coated on the surface of the epoxy primer layer 17 to form the microcapsule self-repairing intermediate layer 16.

[0033] A second hollow bearing 12 is arranged between one end of the worm gear 8 and the hollow cap 7, so that the stability of the worm gear 8 moving in the hollow cap 7 is improved;

[0034] A first hollow bearing 11 is arranged between one side of the worm 9 and the hollow cap 7, so that the worm 9 can be guided and limited in position.

[0035] The embodiment of the application in use: first, the user can manually insert the fastening rod 3 into the mounting hole between the corresponding two component products, then glue between the hollow cap 7 and the component product in contact with it, and then use the electric screw gun to rotate the protective operation port 5 on the rotating operation piece 6, drive the worm 9 to rotate, and then drive the worm gear 8 engaged with the worm 9 to move, which makes the fastening rod 3 connected with the worm gear 8 move, and the reinforcing expandable nut 4 screwed on it moves to the tail of the fastening rod 3 to realize the effect of deepening into the component product mounting port, and the elastic expansion arm of the reinforcing expandable nut 4 can realize the locking of the fastening rod 3, and improve the firmness of the fastening rod 3 during installation, and the self-locking performance of the transmission structure composed of the worm 9 and the worm gear 8 makes the reinforcing expandable nut 4 not easy to slip off, further optimizing the stability of the structure, at the same time, the user can inject gel type buffer paste into the second hollow buffer cavity 13 and the first hollow buffer cavity 10, and make the gel type buffer paste enter the gap between the fastening rod 3 and the component product mounting port through the liquid guide pipe 1 with the liquid outlet hole 2 on the surface, which can realize the filling and sealing effect, and through the buffer performance, it can improve the anti-looseness effect of the fastener assembly, so that it is not easy to loosen when affected by external vibration, and can effectively improve the reliability and stability of the fastener assembly, in addition, the multi-layer protective structure composed of the epoxy primer layer 17, the microcapsule self-repairing intermediate layer 16 and the polyurethane anticorrosive topcoat layer 15 arranged on the outer wall of the fastening rod 3 realizes more comprehensive and reliable corrosion protection, specifically, the epoxy primer layer 17 enhances the adhesion of the microcapsule self-repairing intermediate layer 16, and when the polyurethane anticorrosive topcoat layer 15 on the outermost layer of the fastener assembly is damaged, the anticorrosive microcapsule particles 18 inside the microcapsule self-repairing intermediate layer 16 flow out the anticorrosive repair agent to repair the polyurethane anticorrosive topcoat layer 15 in time, which makes the fastener assembly suitable for various harsh environments such as humidity, acid and alkali, in addition, when preparing the microcapsule self-repairing intermediate layer 16, first, the anticorrosive repair agent is wrapped in the anticorrosive microcapsule particles 18 inside by in-situ polymerization, the prepared anticorrosive microcapsule particles 18 are uniformly dispersed in the solvent to form a microcapsule suspension, and then the microcapsule suspension is coated on the surface of the epoxy primer layer 17 to form the microcapsule self-repairing intermediate layer 16.

Claims

1. A corrosion resistant fastener structure having a self-repairing function, characterized by, The utility model provides a reinforcing device for fastening insert rod, including fastening insert rod (3), one end of fastening insert rod (3) is provided with hollow cap (7), and the fastening insert rod (3) is threadedly connected with reinforcing expandable nut (4), the inside movable joint of hollow cap (7) is connected with the worm wheel (8) of fastening insert rod (3) connection, the bottom engagement connection of worm wheel (8) has worm (9), the inside of worm wheel (8) and fastening insert rod (3) is provided with second hollow buffer cavity (13) and first hollow buffer cavity (10) respectively, first hollow buffer cavity (10) is uniformly provided with liquid guide pipe (1), the outside wall of liquid guide pipe (1) is uniformly provided with liquid outlet (2), the outside wall of fastening insert rod (3) is sequentially provided with epoxy primer layer (17), microcapsule self-repairing intermediate layer (16) and polyurethane anticorrosive finish layer (15), the inside of microcapsule self-repairing intermediate layer (16) is uniformly provided with anticorrosive microcapsule particle (18).

2. The corrosion-resistant fastener structure with self-repairing function according to claim 1, characterized in that: The second hollow bearing (12) is arranged between one end of the worm wheel (8) and the hollow cap (7).

3. The corrosion-resistant fastener structure with self-repairing function according to claim 1, characterized in that: The first hollow bearing (11) is arranged between one side of the worm (9) and the hollow cap (7).

4. The corrosion-resistant fastener structure with self-repairing function according to claim 1, characterized in that: The output rod (14) is arranged on one side of the worm (9) and penetrates the outer wall of the hollow cap (7).

5. The corrosion resistant fastener structure with self-repairing function according to claim 4, characterized in that: The rotating operating member (6) is welded on the output rod (14).

6. The corrosion resistant fastener structure with self-repairing function according to claim 5, characterized in that: The protective operating port (5) is arranged on the rotating operating member (6).

7. The corrosion resistant fastener structure with self-repairing function according to claim 1, characterized in that: The anticorrosive repairing agent is wrapped in the anticorrosive microcapsule particle (18).

Images