Tapered sealing screw capable of preventing rusting and aging

Abstract

The utility model relates to the technical field of screws, in particular to an anti-rusting and anti-aging conical sealing screw which comprises a screw head and a screw rod, the screw rod is fixed at the bottom end of the screw head, two oil grooves are formed in the outer wall of the screw head and distributed up and down, a sliding groove is formed in the top end of the screw head, and the sliding groove is communicated with the screw head. A sliding groove is formed in the screw head, a pressing ring is connected into the sliding groove in a sliding mode, an oil bin is formed in the screw head, sealing oil is contained in the oil bin, a plurality of circulating grooves are formed between the oil bin and the oil grooves in a communicating mode, a circulating groove is formed between every two oil grooves in a communicating mode, and a plurality of blocking rods are fixed to the bottom end of the pressing ring. By arranging the oil groove and the oil bin, after the screw is screwed into an object, the pressing ring is pressed downwards to drive the blocking rod and the circulating groove to move relatively, sealing oil flows into the oil groove in the oil bin, oil layer sealing is formed, external air and moisture are effectively prevented from entering a screw hole, and the screw is prevented from rusting and aging.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to a conical sealing screw which is rust-proof and aging-resistant. Background Art

[0002] When a conical screw is used for a long time, air and moisture will enter the screw hole through the gap, causing corrosion to the screw, causing it to rust and age, and causing the screw to loosen. To address the above problem, the present application designs a conical sealing screw that is rust-proof and aging-resistant. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the utility model provides a conical sealing screw which is rust-proof and aging-resistant.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a conical sealing screw that is rust-proof and aging-proof, comprising a screw head and a screw rod, the screw rod being fixed at the bottom end of the screw head, and two oil grooves being provided on the outer wall of the screw head, the two oil grooves being distributed up and down, a slide groove being provided on the top of the screw head, a pressure ring being slidably connected in the slide groove, an oil tank being provided in the screw head, the oil tank being filled with sealing oil, a plurality of circulation grooves being connected between the oil tank and the oil groove, a circulation groove being connected between the two oil grooves, a plurality of blocking rods being fixed to the bottom end of the pressure ring, the blocking rods passing downward through the screw head and the oil tank, a plurality of grooves being provided on the outer wall of the blocking rod, and the bottom end of the blocking rod being located in the circulation groove below the oil tank.

[0007] In order to prevent the pressure ring from loosening, the utility model is improved in that a plurality of locking convex rings are provided on the inner wall of the sliding groove.

[0008] In order to further improve the sealing performance, the present invention has an improvement in that sealing rings are provided at the outer ring positions of the upper and lower ends of the oil groove.

[0009] In order to reduce the loss of sealing oil, the utility model is improved in that the bottom end of the oil groove is arranged as an inclined surface with the inner circle tilted downward.

[0010] In order to further increase the service life of the screw, the present invention is improved in that the surfaces of the screw head and the screw rod are coated with an anti-oxidation coating.

[0011] (3) Beneficial effects

[0012] Compared with the prior art, the present invention provides a conical sealing screw that is rust-proof and aging-resistant, and has the following beneficial effects:

[0013] The rust-proof and aging-resistant conical sealing screw is provided with an oil groove and an oil bin. After the screw is screwed into an object, the pressure ring is pressed down to drive the blocking rod and the circulation groove to move relative to each other, so that the sealing oil in the oil bin flows into the oil groove, forming an oil layer seal, effectively preventing external air and moisture from entering the screw hole, and preventing the screw from rusting and aging. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the first main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the first partial structure of the utility model;

[0016] Figure 3 This is a schematic diagram of a second partial structure of the present invention in cross section;

[0017] Figure 4 This is a schematic diagram of the third partial structure of the utility model.

[0018] In the figure: 1. Screw head; 2. Screw rod; 3. Oil groove; 4. Slide groove; 5. Press ring; 6. Oil tank; 7. Flow groove; 8. Blocking rod; 9. Groove; 10. Positioning convex ring; 11. Sealing ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4 , a conical sealing screw that prevents rust and aging, comprises a screw head 1 and a screw rod 2, the screw rod 2 is fixed to the bottom end of the screw head 1, and two oil grooves 3 are provided on the outer wall of the screw head 1, and the two oil grooves 3 are distributed up and down, and a slide groove 4 is provided on the top of the screw head 1, and a pressure ring 5 is slidably connected in the slide groove 4, and an oil tank 6 is provided in the screw head 1, and the oil tank 6 is filled with sealing oil, and a plurality of circulation grooves 7 are connected between the oil tank 6 and the oil groove 3, and a circulation groove 7 is connected between the two oil grooves 3, and a plurality of blocking rods 8 are fixed to the bottom end of the pressure ring 5, and the blocking rod 8 passes downward through the screw head 1 and the oil tank 6, and a plurality of grooves 9 are provided on the outer wall of the blocking rod 8, and the bottom end of the blocking rod 8 is located in the circulation groove 7 below the oil tank 6.

[0021] When the screw is in use, in the initial state, the pressure ring 5 is located above the slide groove 4, and the bottom end of the blocking rod 8 is in the circulation groove 7, blocking it to prevent the sealing oil from flowing out of the oil tank 6. After the screw is screwed into the object, the pressure ring 5 is pressed downward, and the pressure ring 5 drives the blocking rod 8 to move downward. The bottom end of the blocking rod 8 protrudes downward from the circulation groove 7, and a channel is formed between the groove 9 on the blocking rod 8 and the circulation groove 7. The sealing oil flows from the oil tank 6 into the oil groove 3, and then flows from the upper oil groove 3 to the lower oil groove 3. Since the screw is screwed into the object, the oil groove 3 contacts the inner wall of the object to form a closed space, and the sealing oil accumulates in the oil groove 3 to form an oil layer. When outside air and moisture penetrate downward, they will be hindered by the oil layer, thus preventing the screw from rusting and aging.

[0022] It is found in actual use that the pressure ring 5 may become loose, resulting in oil leakage. In order to avoid the above problem, in this embodiment, a plurality of retaining protrusions 10 are provided on the inner wall of the slide groove 4.

[0023] In actual use, it was found that in order to further improve the sealing effect, in this embodiment, sealing rings 11 are provided at the outer ring positions of the upper and lower ends of the oil groove 3.

[0024] It was found in actual use that in order to reduce the loss of sealing oil, in this embodiment, the bottom end of the oil groove 3 is set to be an inclined surface with an inner circle tilted downward.

[0025] It was found in actual use that in order to further improve the service life of the screw, in this embodiment, the surfaces of the screw head 1 and the screw rod 2 are coated with an anti-oxidation coating.

[0026] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purpose and effects of this application, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application and are therefore only examples and are not intended to limit the scope of protection of this application.

[0027] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0028] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0029] 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conical sealing screw that is rust-proof and aging-resistant, comprising a screw head (1) and a screw rod (2), characterized in that: The screw rod (2) is fixed to the bottom end of the screw head (1), and two oil grooves (3) are provided on the outer wall of the screw head (1), and the two oil grooves (3) are distributed up and down. A slide groove (4) is provided at the top of the screw head (1), and a pressure ring (5) is slidably connected in the slide groove (4). An oil bin (6) is provided in the screw head (1), and the oil bin (6) is filled with sealing oil. A plurality of flow grooves (7) are connected between the oil bin (6) and the oil groove (3), and a flow groove (7) is connected between the two oil grooves (3). A plurality of blocking rods (8) are fixed to the bottom end of the pressure ring (5), and the blocking rods (8) pass downward through the screw head (1) and the oil bin (6). A plurality of grooves (9) are provided on the outer wall of the blocking rod (8), and the bottom end of the blocking rod (8) is located in the flow groove (7) below the oil bin (6).

2. The rust-proof and aging-resistant conical sealing screw according to claim 1, characterized in that: A plurality of locking convex rings (10) are provided on the inner wall of the sliding groove (4).

3. The rust-proof and aging-resistant conical sealing screw according to claim 2, characterized in that: Sealing rings (11) are provided at the outer ring positions of the upper and lower ends of the oil groove (3).

4. The rust-proof and aging-resistant conical sealing screw according to claim 3, characterized in that: The bottom end of the oil groove (3) is arranged as a downwardly inclined surface of the inner circle.

5. The rust-proof and aging-resistant conical sealing screw according to claim 4, characterized in that: The surfaces of the screw head (1) and the screw rod (2) are both coated with an anti-oxidation coating.

Images