Anti-corrosion device for perforated bolt

Abstract

The utility model discloses an anti-corrosion device for a perforated bolt. The anti-corrosion device comprises a connected plate and a bolt body arranged in the connected plate, the bolt further comprises a mounting support, the mounting support is located on the outer side of the bolt body, the lower side of the mounting support is fixedly connected with a second sealing ring, and the second sealing ring is arranged in a concentric circle mode. The sealing plate is located on the inner side of the fixing ring, the outer side of the sealing plate is fixedly connected with a first sealing ring, and the first sealing ring is tightly attached to the fixing ring; the fastening piece is in threaded connection with the lower end of the bolt body, a third sealing ring is fixedly installed on the upper side of the fastening piece, and a ribbon is tightly attached to the outer side of the fastening piece. When the anti-corrosion device for the perforated bolt is used, the device mounting bracket can well isolate the external environment and protect the bolt body from being corroded, is easy to disassemble, does not influence normal use, and can effectively prevent moisture and corrosive media from being in contact with the bolt body, the groove and the nut and protect the bolt body, the groove and the nut from being corroded.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to an anti-corrosion device for open-hole bolts. Background Art

[0002] Bolts exposed to the air will inevitably rust. Once the bolts and screws rust, they are difficult to disassemble. The commonly used anti-corrosion measures for bolts are: adding stainless steel to the bolt material, but the problem with this method is that the cost is high, and the mechanical strength of stainless steel is low and it is difficult to open holes. Opening holes on bolts can firmly connect different parts together to ensure that the parts will not loosen or fall off. The bolts can be easily loosened and the parts can be separated, which can enhance the stability and strength of the structure. The anti-corrosion device of the hole bolt is very necessary to reduce unnecessary losses and can easily unscrew the screws for easy operation;

[0003] However, the common anti-corrosion measure for bolts on the market is to apply anti-corrosion agent on the surface. However, the anti-corrosion coating is easily scraped off during use, and the exposed position is still prone to corrosion.

[0004] Therefore, we propose a hole bolt anti-corrosion device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-corrosion device for open-hole bolts to solve the problem that the common anti-corrosion measures for bolts on the market currently proposed in the above-mentioned background technology are to apply anti-corrosion agents on the surface, but the anti-corrosion coating is easily scraped off during use, and the exposed position is still easily corroded.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-corrosion device for bolts with holes, comprising: a connected plate and a bolt body arranged in the connected plate;

[0007] Also includes:

[0008] A mounting bracket, wherein the mounting bracket is located outside the bolt body, and a second sealing ring is fixedly connected to the lower side of the mounting bracket, and the second sealing ring is arranged in a concentric circle;

[0009] A sealing plate, wherein the sealing plate is located on the inner side of the fixing ring, and a first sealing ring is fixedly connected to the outer side of the sealing plate, and the first sealing ring is tightly fitted to the fixing ring;

[0010] The fastener is threadedly connected to the lower end of the bolt body, a third sealing ring is fixedly installed on the upper side of the fastener, and a cable tie is tightly fitted on the outer side of the fastener.

[0011] Preferably, a fixing ring is fixedly connected to the upper side of the mounting bracket, and threaded columns are arranged at equal angles on the upper side of the mounting bracket, and the threaded columns are located inside the fixing ring.

[0012] Preferably, the sealing plate is rotatably connected to the movable column, and the cross-section of the sealing plate is circular.

[0013] Preferably, a sealing gasket is fixedly connected to the upper side of the movable column, and the lower end of the sealing gasket is tightly fitted with the sealing plate, and the movable column corresponds to the threaded column one by one.

[0014] Preferably, grooves are provided on the outer side of the bolt body, and the grooves are distributed in an array, and the bolt body is connected to the nut by means of threads, and the nut is connected to the small screw by means of threads, and the grooves and the small screw constitute a snap-fit ​​structure.

[0015] Preferably, the lower side of the connected plate is tightly fitted with the connection box, and the lower side of the connection box is tightly fitted with the third sealing ring, and the connection box is on the outside of the small screws and nuts.

[0016] Compared with the prior art, the utility model has the following beneficial effects: when the perforated bolt anti-corrosion device is used, the device mounting bracket can well isolate the external environment, protect the bolt body from corrosion, and is easy to disassemble without affecting normal use, and can also effectively prevent moisture and corrosive media from contacting the bolt body, groove and nut, protecting them from corrosion;

[0017] 1. A mounting bracket, a sealing plate and a second sealing ring are provided. When the bolt body is screwed onto the connected plate, the bolt body squeezes the mounting bracket located below it, causing the second sealing ring on the lower side of the mounting bracket to deform, blocking the ventilation conditions below, so that the lower side of the upper end of the bolt body will not corrode or rust;

[0018] 2. A threaded column, a sealing plate and a movable column are provided. By rotating all the movable columns, the movable column drives the sealing plate to move downward, so that the first sealing ring located outside the sealing plate fits tightly with the inner wall of the fixed ring, forming a closed environment, and is easy to disassemble;

[0019] 3. A fastener, a third sealing ring and a cable tie are provided. Screwing the fastener to the lower end of the bolt body and tightening the cable tie can effectively prevent moisture and corrosive media from contacting the bolt body, groove and nut, protecting them from corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front view cutaway structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the fastener of the utility model;

[0024] Figure 5 It is a schematic diagram of the connection structure of the bolt body and the nut of the utility model.

[0025] In the figure: 1. connected plate; 2. bolt body; 3. mounting bracket; 4. fixing ring; 5. threaded column; 6. sealing plate; 7. movable column; 8. sealing gasket; 9. first sealing ring; 10. second sealing ring; 11. groove; 12. small screw; 13. nut; 14. fastener; 15. third sealing ring; 16. cable tie; 17. connection box. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5 The utility model provides a technical solution: an anti-corrosion device for open-hole bolts, comprising: a connected plate 1, a bolt body 2, a mounting bracket 3, a fixing ring 4, a threaded column 5, a sealing plate 6, a movable column 7, a sealing gasket 8, a first sealing ring 9, a second sealing ring 10, a groove 11, a small screw 12, a nut 13, a fastener 14, a third sealing ring 15, a cable tie 16 and a connection box 17;

[0028] When using the open-hole bolt corrosion protection device, if Figure 1 and Figure 3 As shown, first place the mounting bracket 3 on the connected plate 1, so that the hole in the mounting bracket 3 is aligned with the hole in the connected plate 1, then insert the bolt body 2, and then screw the nut 13 from the bottom of the connected plate 1, adjust the position of the nut 13 on the bolt body 2, so that the small hole opened on the nut 13 is aligned with the groove 11 opened on the bolt body 2, and screw the small screw 12, so that the groove 11 and the small screw 12 can form a clamping structure. At this time, the mounting bracket 3 is clamped between the top of the connected plate 1 and the middle of the bolt body 2, ensuring the stability and strength of the structure;

[0029] After the bolt body 2 and the nut 13 are fixed on the connected plate 1, the lower side of the bolt body 2 is tightly fitted with the upper side of the mounting bracket 3, and the second sealing ring 10 located on the lower side of the mounting bracket 3 is tightly fitted with the connected plate 1 due to extrusion, and the air and corrosive medium will not contact the bolt body 2 from this position, and then the sealing plate 6 is placed in the middle of the fixing ring 4, so that the movable column 7 is aligned with the threaded column 5, and the movable column 7 is screwed in turn, and the movable column 7 can move up and down slightly in the sealing plate 6, and the connection between the sealing plate 6 and the movable column 7 will not be worn during rotation. The downward movement of the sealing plate 6 will make the first sealing ring 9 fixedly connected to the outer side of the sealing plate 6 contact the fixing ring 4, and the sealing plate 6 is further moved downward so that the first sealing ring 9 is tightly attached to the fixing ring 4, so that the bolt body 2 located in the mounting bracket 3 and the sealing plate 6 can be in a closed environment. In addition, the sealing gasket 8 is made of a relatively soft material. When the movable column 7 moves downward, the sealing gasket 8 fixed on the upper side of the movable column 7 will block the connection between the movable column 7 and the sealing plate 6, and no air leakage will occur;

[0030] like Figure 1 , Figure 2 and Figure 4 As shown, after fixing the mounting bracket 3 and the sealing plate 6, the connection box 17 is inserted from the bottom end of the bolt body 2. The upper end of the connection box 17 is empty and fixedly connected with a sealing ring. The middle of the lower part is slightly thicker than the lower end of the bolt body 2 to ensure the sealing as much as possible. Then, the fastener 14 is screwed up from the lower end of the bolt body 2 until the third sealing ring 15 in an inclined state contacts and squeezes the connection box 17. The fastener 14 has a longer length reserved for convenient use for connected plates 1 of different thicknesses to avoid the situation where the fastener 14 cannot be fixed. The upper inner side of the fastener 14 is a soft material without threads. After the fastener 14 cannot be screwed up, the cable tie 16 is tightened to fix the fastener 14 and the lower end of the bolt body 2, so as to ensure that the lower end of the bolt body 2 is free from corrosion.

[0031] When it is necessary to remove the bolt body 2 from the connected plate 1, it is only necessary to cut the tie 16, screw down the fastener 14, remove the connection box 17, then expose the nut 13, remove the small screw 12 from the nut 13, and then rotate the movable column 7 above the sealing plate 6 to see the bolt body 2 located in the fixing ring 4. The bolt body 2 and the nut 13 can be removed with a socket wrench, thereby preventing the connected plate 1, the bolt body 2 and the nut 13 from rusting together due to corrosive media, extending the service life, and facilitating maintenance.

[0032] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the records in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hole bolt anti-corrosion device, comprising: A connected plate (1) and a bolt body (2) arranged in the connected plate (1); It is characterized by further comprising: A mounting bracket (3), the mounting bracket (3) being located outside the bolt body (2), and a second sealing ring (10) being fixedly connected to the lower side of the mounting bracket (3), and the second sealing ring (10) being arranged in a concentric circle; A sealing plate (6), wherein the sealing plate (6) is located on the inner side of the fixing ring (4), and a first sealing ring (9) is fixedly connected to the outer side of the sealing plate (6), and the first sealing ring (9) is tightly fitted to the fixing ring (4); A fastener (14) is threadedly connected to the lower end of the bolt body (2), a third sealing ring (15) is fixedly installed on the upper side of the fastener (14), and a cable tie (16) is tightly fitted on the outer side of the fastener (14).

2. The anti-corrosion device for bolts with holes according to claim 1, characterized in that: A fixing ring (4) is fixedly connected to the upper side of the mounting bracket (3), and threaded columns (5) are arranged at equal angles on the upper side of the mounting bracket (3), and the threaded columns (5) are located inside the fixing ring (4).

3. The anti-corrosion device for bolts with holes according to claim 1, characterized in that: The sealing plate (6) is rotatably connected to the movable column (7), and the cross section of the sealing plate (6) is circular.

4. The anti-corrosion device for bolts with holes according to claim 3, characterized in that: The upper side of the movable column (7) is fixedly connected with a sealing gasket (8), and the lower end of the sealing gasket (8) is tightly fitted with the sealing plate (6), and the movable column (7) corresponds to the threaded column (5) one by one.

5. The anti-corrosion device for bolts with holes according to claim 1, characterized in that: The outer side of the bolt body (2) is provided with a groove (11), and the grooves (11) are distributed in an array, and the bolt body (2) and the nut (13) are connected by a thread, and the nut (13) and the small screw (12) are connected by a thread, and the groove (11) and the small screw (12) form a snap-fit ​​structure.

6. The anti-corrosion device for bolts with holes according to claim 1, characterized in that: The lower side of the connected plate (1) is tightly fitted with the connection box (17), and the lower side of the connection box (17) is tightly fitted with the third sealing ring (15), and the connection box (17) is outside the small screw (12) and the nut (13).

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