High-strength anti-corrosion fastener

Abstract

The utility model provides a high-strength anti-corrosion fastener, and belongs to the technical field of bolts. Comprising a bolt, the bolt comprises a screw and an end connected with one end of the screw, the screw is sleeved with a gasket, the lower end of the end abuts against the upper end of the gasket, an annular block is fixed to the top of the gasket, the end is sleeved with a protective cover, a hollow covering cavity is formed in the protective cover, and the inner top wall of the covering cavity is provided with a clamping groove allowing the end to be embedded. The inner top wall of the covering cavity is provided with an annular groove allowing the annular block to be embedded, the clamping groove is located in the annular groove, the annular groove is filled with leakage-proof glue, the gasket is located in the covering cavity, the annular block is embedded in the annular groove, the leakage-proof glue in the annular groove is gradually extruded out along a gap between the annular block and the annular groove, and the periphery of the gasket and the periphery of the end are covered with the leakage-proof glue. According to the utility model, the effect of long-acting prevention of rainwater leakage is effectively achieved, the waterproof quality is improved, and the service life of the waterproof structure is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of bolts and relates to a high-strength anti-corrosion fastener. Background Art

[0002] Fasteners are a type of mechanical parts used for fastening connections and are extremely widely used. They are characterized by a wide variety of varieties and specifications, different performances and uses, and a high degree of standardization, serialization, and generalization. The most common fastener is the bolt. Existing fasteners are fastened using bolts. During use, in order to prevent outdoor fasteners from being rusted and damaged by rainwater, the current practice is to apply leak-proof glue around the contact surface between the exposed bolt head and the connection to fill the gap in the bolt connection, prevent rainwater from combining with the bolt connection, and thus avoid the problem of bolt rust.

[0003] However, the above prior art still has the following problems:

[0004] The anti-leakage glue applied around the contact surface between the bolt head and the connection is directly exposed to the outside. Therefore, after a period of use, it will age and deteriorate due to repeated exposure to the sun and rain, causing the anti-leakage glue to fall off, allowing rainwater to still penetrate into the bolt connection and cause it to rust. Utility Model Content

[0005] The purpose of the utility model is to address the deficiencies of the existing technology and to propose a high-strength anti-corrosion fastener to solve the technical problem of poor waterproof effect of the existing bolts mentioned in the background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A high-strength anti-corrosion fastener comprises a bolt, wherein the bolt comprises a screw and an end connected to one end of the screw, a washer is sleeved on the screw, the lower end of the end rests against the upper end of the washer, an annular block is fixed on the top of the washer, a protective cover is sleeved on the end, a hollow covering cavity is formed in the protective cover, the top wall of the covering cavity has a card groove for the end head to be embedded, the top wall of the covering cavity has an annular groove for the annular block to be embedded, the card groove is located in the annular groove, the annular groove is filled with leak-proof glue, the gasket is located in the covering cavity, the annular block is embedded in the annular groove and gradually squeezes out the leak-proof glue in the annular groove along the gap between the annular block and the annular groove, so that the leak-proof glue covers the entire gasket and the end head.

[0008] Working principle:

[0009] The protective cover is put on the end head, and the annular block on the top of the gasket is gradually embedded in the annular groove. The annular block squeezes out the leak-proof glue in the annular groove along the gap between the annular block and the annular groove. When the protective cover completely covers the end head, the leak-proof glue is squeezed out and covers the gasket and the end head, effectively achieving the waterproof effect. No manual gluing is required, which is very convenient. At the same time, under the action of the protective cover, the protective cover effectively protects the leak-proof glue from being exposed to the sun and rain, causing aging, deterioration and falling off, so as to achieve the effect of long-term prevention of rainwater leakage.

[0010] The beneficial effects of the utility model are:

[0011] The utility model is provided with a protective cover, a gasket and an annular block. When the protective cover is put on the end head, the annular block is gradually embedded in the annular groove, and the annular block squeezes out the leakage-proof glue in the annular groove along the gap between the annular block and the annular groove. When the protective cover completely covers the end head, the extruded leakage-proof glue completely covers the gasket and the periphery of the end head. There is no need for manual gluing, which is very convenient and effectively achieves the waterproof effect. At the same time, under the action of the protective cover, the protective cover effectively protects the leakage-proof glue from being exposed to the sun and rain, causing aging, deterioration and falling off, so as to achieve the effect of long-term prevention of rainwater leakage, thereby improving the waterproof quality of the utility model and extending the service life of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional view of an embodiment of the utility model;

[0013] Figure 2 It is a bottom view of the protective cover of the embodiment of the utility model;

[0014] Figure 3 This is a schematic diagram of the assembly of the bolt, washer and annular block according to an embodiment of the present utility model;

[0015] Figure 4 is a cross-sectional view of a protective cover according to an embodiment of the present invention;

[0016] Figure 5 It is a structural schematic diagram of an embodiment of the present utility model.

[0017] Explanation of the accompanying symbols: 1. Screw; 2. End; 3. Washer; 4. Annular block; 5. Protective cover; 6. Covering cavity; 7. Slot; 8. Annular groove; 9. Anti-leakage glue; 10. Extrusion groove 1; 11. Extrusion groove 2; 12. Threaded groove; 13. Threaded rod; 14. Threaded hole; 15. Adjustment block; 16. Cross groove; 17. Annular rubber pad; 18. Fixing groove. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] like Figure 1-5 As shown, a high-strength anti-corrosion fastener includes a bolt, which includes a screw 1 and an end head 2 connected to one end of the screw 1, a washer 3 is sleeved on the screw 1, the lower end of the end head 2 is in abutment with the upper end of the washer 3, and an annular block 4 is fixed on the top of the washer 3, the washer 3 and the annular block 4 are integrated, and a protective cover 5 is sleeved on the end head 2, a hollow covering cavity 6 is formed in the protective cover 5, the top wall of the covering cavity 6 has a card groove 7 for the end head 2 to be embedded, the top wall of the covering cavity 6 has an annular groove 8 for the annular block 4 to be embedded, the card groove 7 is located in the annular groove 8, and the annular groove 8 is filled with leak-proof glue 9, the main function of the leak-proof glue 9 is to prevent liquid leakage and increase the sealing performance of the fastener, the leak-proof glue 9 is an adhesive with high viscosity and fast drying properties, which can form strong adhesion on the surfaces of various materials and has waterproof properties The sealing ring 3 is provided with a sealing surface 6, and the sealing surface 6 is provided with a sealing surface 7. The sealing surface 6 is provided with a sealing surface 8 and a sealing surface 9. The sealing surface 6 is provided with a sealing surface 8 and a sealing surface 9. The sealing surface 6 is provided with a sealing surface 8 and a sealing surface 9.

[0020] The protective cover 5 is put on the end head 2, and the annular block 4 on the top of the gasket 3 is gradually embedded in the annular groove 8. The annular block 4 squeezes out the leakage-proof glue 9 in the annular groove 8 along the gap between the annular block 4 and the annular groove 8. When the protective cover 5 completely covers the end head 2, the leakage-proof glue 9 is squeezed out and covers the gasket 3 and the end head 2, effectively achieving the waterproof effect without manual application, which is very convenient. At the same time, under the action of the protective cover 5, the protective cover 5 effectively protects the leakage-proof glue 9 from being exposed to the sun and rain, causing aging, deterioration and falling off, so as to achieve the effect of long-term prevention of rainwater leakage.

[0021] like Figure 1-4As shown, the outer wall of the annular block 4 has a plurality of extrusion grooves 10 that penetrate the annular block 4. Preferably, in this embodiment, the number of the extrusion grooves 10 is six. The inner wall of the annular block 4 has a plurality of extrusion grooves 11 that penetrate the annular block 4. Preferably, in this embodiment, the number of the extrusion grooves 11 is six. The top of the end head 2 is provided with a threaded groove 12, and a threaded rod 13 is rotatably connected in the threaded groove 12. The protective cover 5 is provided with a threaded hole 14 for the threaded rod 13 to pass through. The threaded rod 13 is threadedly connected to the threaded hole 14. The top of the protective cover 5 is provided with a fixing groove 18, and the threaded hole 14 is fixed with the fixing groove 18. The grooves 18 are connected, and the threaded rod 13 extends to the fixed groove 18 and an adjusting block 15 is fixed at one end. A cross groove 16 is opened on the top of the adjusting block 15. The adjusting block 15 is rotated by a cross screwdriver from the outside, and the adjusting block 15 drives the threaded rod 13 to rotate, so that the threaded rod 13 is threadedly connected in the threaded groove 12, and the lower end of the adjusting block 15 is abutted against the bottom wall of the fixed groove 18, further fixing the protective cover 5 on the end head 2 to prevent the protective cover 5 from falling off. An annular rubber pad 17 is fixed to the lower end of the protective cover 5, and the annular rubber pad 17 is in contact with the outer wall of the connector, thereby preventing external water from entering the protective cover 5.

[0022] The specific operation mode of the utility model is as follows:

[0023] The protective cover 5 is put on the end head 2, and the annular block 4 on the top of the gasket 3 is gradually embedded in the annular groove 8. The annular block 4 extrude the leakage-proof glue 9 in the annular groove 8 along several extrusion grooves 10 and extrusion grooves 2 11. When the protective cover 5 completely covers the end head 2, the protective cover 5 at this time completely covers the gasket 3, and the extruded leakage-proof glue 9 covers the gasket 3 and the end head 2, effectively achieving the waterproof effect. The adjusting block 15 is rotated by a cross screwdriver from the outside, and the adjusting block 15 drives the threaded rod 13 to rotate, so that the threaded rod 13 is threadedly connected in the threaded groove 12, and the lower end of the adjusting block 15 is abutted against the inner bottom wall of the fixing groove 18, thereby realizing that the annular rubber pad 17 at the lower end of the protective cover 5 contacts and abuts against the outer wall of the connector, thereby preventing external water from entering the protective cover 5.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A high-strength anti-corrosion fastener, comprising a bolt, wherein the bolt comprises a screw rod (1) and an end head (2) connected to one end of the screw rod (1), characterized in that: The screw (1) is provided with a washer (3), the lower end of the end head (2) abuts against the upper end of the washer (3), an annular block (4) is fixed on the top of the washer (3), and a protective cover (5) is provided on the end head (2). A hollow covering cavity (6) is formed in the protective cover (5), the top wall of the covering cavity (6) has a slot (7) for the end head (2) to be embedded, the top wall of the covering cavity (6) has an annular groove (8) for the annular block (4) to be embedded, the slot (7) is located in the annular groove (8), and the annular groove (8) is filled with anti-leakage glue (9), the washer (3) is located in the covering cavity (6), the annular block (4) is embedded in the annular groove (8) and gradually squeezes out the anti-leakage glue (9) in the annular groove (8) along the gap between the annular block (4) and the annular groove (8), so that the anti-leakage glue (9) covers the entire washer (3) and the end head (2).

2. A high-strength anti-corrosion fastener according to claim 1, characterized in that: The outer wall of the annular block (4) has a plurality of extrusion grooves (10) that penetrate the annular block (4), and the inner wall of the annular block (4) has a plurality of extrusion grooves (11) that penetrate the annular block (4).

3. A high-strength anti-corrosion fastener according to claim 1, characterized in that: The end head (2) has a threaded groove (12) on the top, a threaded rod (13) is rotatably connected in the threaded groove (12), the protective cover (5) has a threaded hole (14) for the threaded rod (13) to pass through, the threaded rod (13) is threadedly connected to the threaded hole (14), a fixing groove (18) is formed on the top of the protective cover (5), the threaded hole (14) is connected to the fixing groove (18), the threaded rod (13) extends into the fixing groove (18), and an adjustment block (15) is fixed at one end thereof, and a cross groove (16) is formed on the top of the adjustment block (15).

4. A high-strength anti-corrosion fastener according to claim 1, characterized in that: An annular rubber pad (17) is fixed to the lower end of the protective cover (5).

5. The high-strength anti-corrosion fastener according to claim 1, characterized in that: The gasket (3) and the annular block (4) are integral.

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