Fastening screw

Abstract

The utility model discloses a fastening type screw rod which comprises a screw rod body and a nut, a threaded section is arranged on the screw rod body, the nut is installed on the threaded section in a threaded mode, a plurality of strip-shaped open grooves are formed in the threaded section in the axial direction, an annular groove is formed in the inner side of the nut, a feeding channel is formed in the nut in the radial direction, and the feeding channel is communicated with the annular groove. The strip-shaped open groove is communicated with the annular groove, and the strip-shaped open groove and the annular groove are filled with an integrally-formed connecting body. The annular groove is formed in the nut, the strip-shaped open groove is formed in the screw rod, after the nut is installed, uncured glue or plastic or liquid is injected into the feeding channel to be filled between the strip-shaped open groove and the annular groove and then cured, a solid-state connecting body is formed, the nut and the screw rod are connected into a whole, and the nut is prevented from rotating; and the fastening performance of the screw rod is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to the technical field of screw rods. Background Art

[0002] The screw is a rod with threads and no head. During installation, the screw connects two parts into one and is fastened by a nut. It is widely used in power, chemical, oil refining, valves, railways, bridges, steel structures, auto parts, machinery, boiler steel structures, hanging towers, large-span steel structures and large buildings. After the existing screw and nut threads are installed, the nut and the screw are easily loosened, resulting in instability, and cannot meet the tightness requirements of the installation. Utility Model Content

[0003] The purpose of the utility model is to solve the problems in the prior art and to provide a fastening screw that can solve the above problems.

[0004] To achieve the above-mentioned purpose, the utility model proposes a tightening screw, including a screw body and a nut, the screw body is provided with a threaded section, the threaded section is threadedly mounted with a nut, a plurality of strip grooves are axially opened on the threaded section, an annular groove is opened on the inner side of the nut, a feeding channel is radially opened on the nut, the strip groove is connected with the annular groove, and the strip groove and the annular groove are filled with an integrally formed connector.

[0005] Preferably, the strip-shaped slotted uniform ring is arranged on the outer surface of the screw body.

[0006] Preferably, a conical groove is formed at one end of the feeding channel away from the annular groove, and the conical groove gradually becomes larger in a direction away from the annular groove.

[0007] Preferably, the connector is plastic or glue.

[0008] Preferably, annular plates are symmetrically installed on both sides of the nut, the annular plates are rotatably installed on the surface of the nut, an annular sealing ring is provided on the inner side of the annular plate, and a plurality of sealing blocks matching the strip grooves are convexly provided on the inner side of the annular sealing ring.

[0009] The beneficial effects of the utility model are as follows: the utility model provides an annular groove on the nut and a strip groove on the screw. After the nut is installed, uncured glue or plastic is injected into the feeding channel. The liquid is filled between the strip groove and the annular groove and then solidified to form a solid connection body, connecting the nut and the screw as a whole, preventing the nut from rotating, and improving the tightness of the screw.

[0010] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the nut installation of the utility model;

[0013] Figure 3 It is a schematic diagram of the structure of the annular sealing ring of the utility model.

[0014] In the figure: 1- screw body; 2- nut; 3- threaded section; 4- strip groove; 5- annular groove; 6- feeding channel; 7- connector; 8- annular plate; 9- annular sealing ring; 10- sealing block. DETAILED DESCRIPTION

[0015] See also Figure 1 , Figure 2 , Figure 3 , a fastening screw, comprising a screw body 1 and a nut 2, the screw body 1 is provided with a threaded section 3, the threaded section 3 is threadedly mounted with a nut 2, the threaded section 3 is axially provided with a plurality of strip grooves 4, an annular groove 5 is provided on the inner side of the nut 2, a feeding channel 6 is radially provided on the nut 2, the strip groove 4 is connected to the annular groove 5, the strip groove 4 and the annular groove 5 are filled with an integrally formed connector 7, the strip groove 4 is evenly annularly arranged on the outer surface of the screw body 1, the feeding channel 6 is provided with a conical groove at one end away from the annular groove 5, the conical groove gradually becomes larger in the direction away from the annular groove 5, the connector 7 is plastic or glue, annular plates 8 are symmetrically installed on both sides of the nut 2, the annular plate 8 is rotatably mounted on the surface of the nut 2, an annular sealing ring 9 is provided on the inner side of the annular plate 8, and a plurality of sealing blocks 10 matching the strip groove 4 are convexly provided on the inner side of the annular sealing ring 9.

[0016] Working process of this utility model:

[0017] During the working process of the utility model, the nut is first installed on the screw rod, and the sealing block on the annular plate 8 is sealed and installed with the strip-shaped slot without relative rotation with the screw rod. Then, liquid glue is injected into the nut from the feeding channel and enters the cavity formed by the two annular sealing rings. Then the glue solidifies to form a connecting body, thereby enhancing the fastening performance of the screw rod.

[0018] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A fastening screw, characterized in that: The invention comprises a screw body (1) and a nut (2), wherein the screw body (1) is provided with a threaded section (3), the nut (2) is threadedly mounted on the threaded section (3), a plurality of strip grooves (4) are axially provided on the threaded section (3), an annular groove (5) is provided on the inner side of the nut (2), a feeding channel (6) is radially provided on the nut (2), the strip grooves (4) are connected to the annular grooves (5), and the strip grooves (4) and the annular grooves (5) are filled with an integrally formed connector (7).

2. The fastening screw according to claim 1, characterized in that: The strip-shaped grooves (4) are evenly arranged on the outer surface of the screw body (1).

3. The fastening screw as claimed in claim 1, characterized in that: A conical groove is formed at one end of the feeding channel (6) away from the annular groove (5), and the conical groove gradually becomes larger in a direction away from the annular groove (5).

4. The fastening screw as claimed in claim 1, characterized in that: The connector (7) is made of plastic or glue.

5. The fastening screw as claimed in claim 1, characterized in that: Annular plates (8) are symmetrically mounted on both sides of the nut (2). The annular plates (8) are rotatably mounted on the surface of the nut (2). An annular sealing ring (9) is provided on the inner side of the annular plate (8). A plurality of sealing blocks (10) matching the strip-shaped slots (4) are convexly provided on the inner side of the annular sealing ring (9).

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