A rustproof bolt

Abstract

The utility model discloses a kind of rust-proof bolts, it includes: screw cap is placed on the screw cap of bolt body, the screw cap covers the screw cap of bolt body from top to bottom, the screw cap is connected with the screw cap of bolt body, the cross-sectional shape of the screw cap is hexagonal;Circular ring is around the periphery of screw cap, the lower end surface of the circular ring is flush with the lower end surface of screw cap, and the circular ring is fixedly connected with screw cap;Screw rod cover is placed around the screw rod of bolt body, the upper end surface of the screw rod cover is connected with the lower end surface of circular ring, and the lower end surface of the screw rod cover is sealing surface;Cross groove is placed on the upper end surface of screw cap.The beneficial effects of the utility model are: not easy to be corroded and can be opened by more kinds of auxiliary tools.

Description

Technical Field

[0001] This utility model relates to the technical field of bolts, and in particular to a rust-resistant bolt. Background Technology

[0002] Most bolts need to be exposed to the elements, and over time they will corrode and become difficult to unscrew. The available tools are also very limited. Utility Model Content

[0003] The present invention aims to overcome the shortcomings of existing technologies that are susceptible to corrosion and cannot be opened with a wider variety of auxiliary tools, and provides a rust-resistant bolt that is not easily corroded and can be opened with a wider variety of auxiliary tools.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A rust-resistant bolt, comprising:

[0006] The bolt body is placed inside the bolt.

[0007] A nut cap is placed on the nut of the bolt body. The nut cap covers the nut of the bolt body from top to bottom. The nut cap is engaged with the nut of the bolt body. The cross-sectional shape of the nut cap is hexagonal.

[0008] A ring is wrapped around the nut cap, the lower end face of the ring is flush with the lower end face of the nut cap, and the ring is fixedly connected to the nut cap;

[0009] A screw cover is placed around the screw of the bolt body. The upper end face of the screw cover is connected to the lower end face of the ring, and the lower end face of the screw cover is a sealing surface.

[0010] A cross-shaped groove is placed on the upper surface of the nut cap.

[0011] During assembly, place the nut cap over the nut on the bolt body and screw the screw cover onto the ring. Store it as is when not in use. When needed, open the screw cover to expose the screw. The exposed nut is protected by the nut cap, greatly reducing the possibility of corrosion. Because the nut cap is hexagonal with a cross groove, it can be operated with a wrench or screwdriver, achieving the purpose of not being easily corroded and being able to be opened with a variety of auxiliary tools.

[0012] Preferably, the upper surface of the nut of the bolt body is provided with several slots, and the inside of the nut cover is provided with several retaining strips. The retaining strips are fixedly connected to the nut cover, and each retaining strip corresponds to one of the slots. The lower end of the retaining strip is placed in the slot. The nut cover is engaged with the bolt nut through the cooperation of the retaining strips and slots. The cooperation of the retaining strips and slots allows for a tighter connection between the nut cover and the bolt body.

[0013] Preferably, the nut cap is provided with a second type of retaining groove and a second type of retaining strip. The second type of retaining groove is provided in several locations and evenly distributed on the outer surface of the nut cap. The second type of retaining strip is provided in several locations and corresponds one-to-one with the second type of retaining groove. One end of the second type of retaining strip is placed inside the second type of retaining groove, and the second type of retaining strip engages with the nut cap through the second type of retaining groove. The second type of retaining strip increases the diameter of the nut cap, making it easier to tighten by hand.

[0014] Preferably, the lower end face of the ring is provided with an annular groove, the center of which overlaps with the axis of the bolt body's screw. The upper end of the screw cover is placed within the annular groove, and the screw cover is threadedly connected to the ring through the annular groove. The annular groove provides connection space for the screw cover and increases sealing performance.

[0015] Preferably, a buffer sealing gasket is provided on the lower end face of the ring, the axis of which overlaps with the axis of the bolt body's thread, and the buffer sealing gasket is fixedly connected to the lower end face of the ring. The buffer sealing gasket allows the bolt body to fit tightly against the surface of the object being installed during use, preventing moisture and air from entering the bolt's thread and further reducing the probability of corrosion.

[0016] Preferably, the lower end face of the ring is lower than the lower end face of the bolt body nut. This ensures that the buffer sealing gasket is in contact with the mounting surface.

[0017] The beneficial effects of this utility model are: it is not easily corroded and can be opened with a wider variety of auxiliary tools; the cooperation of the first retaining strip and the first retaining groove allows for a tighter connection between the nut cap and the bolt body; the second retaining strip can increase the diameter of the nut cap, making it easier to tighten by hand; the annular groove can provide connection space for the bolt cover and increase sealing; the buffer sealing gasket allows the bolt body to fit tightly against the surface of the installation object during use, preventing moisture and air from entering the bolt's screw and further reducing the probability of corrosion; and it can ensure that the buffer sealing gasket is in contact with the installation surface. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the main view of this utility model;

[0020] Figure 3 yes Figure 2 A magnified view of detail A;

[0021] Figure 4 yes Figure 2 A magnified view of detail B.

[0022] In the diagram: 1. Bolt body, 2. Nut cap, 3. Threaded rod cover, 4. Cross groove, 5. Ring, 6. Slot 1, 7. Clip 1, 8. Slot 2, 9. Clip 2, 10. Annular groove, 11. Buffer sealing gasket. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 and Figure 2 In one embodiment, a rust-resistant bolt includes: a nut cap 2 placed on the nut of the bolt body 1, the nut cap 2 covering the nut of the bolt body 1 from top to bottom, the nut cap 2 engaging with the nut of the bolt body 1, and the nut cap 2 having a hexagonal cross-sectional shape; a ring 5 surrounding the nut cap 2, the lower end face of the ring 5 being flush with the lower end face of the nut cap 2, and the ring 5 being fixedly connected to the nut cap 2; a screw cover 3 placed around the screw of the bolt body 1, the upper end face of the screw cover 3 being connected to the lower end face of the ring 5, and the lower end face of the screw cover 3 being a sealing surface; and a cross groove 4 placed on the upper end face of the nut cap 2.

[0025] like Figure 2 and Figure 3 As shown, several slots 6 on the upper surface of the nut of the bolt body 1 correspond one-to-one with several retaining strips 7 inside the nut cover 2. The lower end of the retaining strip 7 is placed in the slot 6. The nut cover 2 is engaged with the bolt nut through the cooperation of the retaining strips 7 and the slots 6. Several slots 8 and retaining strips 9 on the outer surface of the nut cover 2 are evenly distributed. The retaining strips 9 correspond one-to-one with the slots 8. One end of the retaining strip 9 is placed in the slot 8. The retaining strip 9 is engaged with the nut cover 2 through the slot 8. The retaining strip 9 can be separated from the slot 8.

[0026] like Figure 4 As shown, the center of the annular groove 10 overlaps with the axis of the bolt body 1's screw. The upper end of the screw cover 3 is placed inside the annular groove 10, and the screw cover 3 is threadedly connected to the ring 5 through the annular groove 10. The axis of the buffer sealing gasket 11 on the lower end face of the ring 5 overlaps with the axis of the bolt body 1's screw, and the buffer sealing gasket 11 is fixedly connected to the lower end face of the ring 5.

[0027] like Figure 2 As shown, the lower end face of the ring 5 is lower than the lower end face of the nut of the bolt body 1.

[0028] During assembly, place the nut cap 2 onto the nut of the bolt body 1, let the retaining strip 7 fit into the retaining groove 6, and then screw the screw cover 3 into the annular groove 10 of the ring 5. When not in use, store it in this way. When needed, open the screw cover 3 to expose the screw. The exposed nut is protected by the nut cap 2, which greatly reduces the possibility of corrosion. After tightening, the buffer sealing gasket 11 on the nut cap 2 contacts the surface of the installed item, which isolates the screw of the bolt body 1 and reduces the entry of moisture and air. The screw of the bolt body 1 can also be corroded. Because the nut cap 2 is hexagonal and has a cross groove 4, it can be operated with a wrench or screwdriver. When it is necessary to operate by hand, install the retaining strip 9 on the retaining groove 8 to increase the diameter and make it easier to tighten. This achieves the purpose of not being easily corroded and being able to be opened with more types of auxiliary tools.

Claims

1. A rust-resistant bolt, characterized in that it comprises: Bolt body (1) is placed inside the bolt; Nut cap (2) is placed on the nut of the bolt body (1). The nut cap (2) covers the nut of the bolt body (1) from top to bottom. The nut cap (2) is engaged with the nut of the bolt body (1). The cross-sectional shape of the nut cap (2) is hexagonal. A ring (5) surrounds the nut cap (2), with the lower end face of the ring (5) flush with the lower end face of the nut cap (2), and the ring (5) is fixedly connected to the nut cap (2). A screw cover (3) is placed around the screw of the bolt body (1). The upper end face of the screw cover (3) is connected to the lower end face of the ring (5). The lower end face of the screw cover (3) is a sealing surface. The cross groove (4) is placed on the upper surface of the nut cap (2).

2. The rust-preventive bolt according to claim 1, wherein The upper surface of the nut of the bolt body (1) is provided with several slots (6), and the nut cover (2) is provided with several clips (7). The clips (7) are fixedly connected to the nut cover (2). The clips (7) correspond one-to-one with the slots (6). The lower end of the clips (7) is placed in the slots (6). The nut cover (2) is engaged with the nut of the bolt through the cooperation of the clips (7) and the slots (6).

3. The rust-preventive bolt according to claim 2, wherein The nut cap (2) is provided with a second groove (8) and a second strip (9). There are several second grooves (8) and they are evenly distributed on the outer side of the nut cap (2). There are several second strips (9) and they correspond one-to-one with the second grooves (8). One end of the second strip (9) is placed in the second groove (8). The second strip (9) is engaged with the nut cap (2) through the second groove (8).

4. The rust-preventive bolt according to claim 1, wherein The lower end face of the ring (5) is provided with an annular groove (10), the center of the annular groove (10) overlaps with the shaft of the bolt body (1), the upper end of the screw cover (3) is placed in the annular groove (10), and the screw cover (3) is threadedly connected to the ring (5) through the annular groove (10).

5. A rust-resistant bolt according to claim 4, characterized in that, The lower end face of the ring (5) is provided with a buffer sealing gasket (11), the shaft of the buffer sealing gasket (11) overlaps with the shaft of the bolt body (1), and the buffer sealing gasket (11) is fixedly connected to the lower end face of the ring (5).

6. A rust-resistant bolt according to claim 5, characterized in that, The lower end face of the ring (5) is lower than the lower end face of the nut of the bolt body (1).

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