Fastening screw

Abstract

The utility model relates to the technical field of fastening screws, and discloses a fastening screw which comprises a screw rod and a screw cap integrally formed at the bottom end of the screw rod, and further comprises a first nut and a second nut. The first nut and the second nut are in threaded connection with the top end of the screw rod, and the first nut is provided with a locking structure used in cooperation with the screw rod; a gasket; the paired gaskets are vertically symmetrical, attached to each other and directly arranged on the screw in a sleeving mode, the middles of the gaskets are high, and the peripheries of the gaskets are low. Compared with the prior art, the high-strength anti-falling fastening screw has the advantages that the high-strength anti-falling fastening screw is provided, the problem that an existing screw is prone to loosening is effectively solved, and stability and safety of the fastening screw are improved.

Description

Technical Field

[0001] This utility model relates to the field of fastening screw technology, specifically to a fastening screw. Background Technology

[0002] Screws are a common method of connection and fixation, using a spiral motion to tightly bind two or more objects together. A screw typically consists of a shank and a nut. When the shank is screwed into a pre-drilled hole or connected to another object via a nut, rotating the nut or nut applies a preload, securing the objects together.

[0003] Traditional fastening screws are widely used in many machines and equipment, where vibration is unavoidable. Continuous vibration causes the two parts connected by the screw to move relative to each other, and there is also movement between the screw head or nut and the connected parts. These repetitive movements counteract the friction between the screw and the connected parts, eventually causing the screw to loosen. Utility Model Content

[0004] I. Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to overcome the above-mentioned technical difficulties and provide a high-strength anti-loosening fastening screw, which effectively solves the problem of existing screws being easy to loosen and improves the stability and safety of the fastening screw.

[0006] II. Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a fastening screw, including a screw rod and a screw cap, wherein the screw cap is integrally formed on the bottom end of the screw rod, and further comprising:

[0008] First nut and second nut; the first nut and second nut are respectively threaded to the top of the screw rod, and the first nut is provided with a locking structure for use with the screw rod;

[0009] Gaskets; pairs of gaskets are symmetrical and closely fitted together and directly sleeved on the screw, with the middle of the gasket higher and the surrounding area lower.

[0010] As an improvement, the locking structure includes a stud and fasteners; the stud is horizontally inserted into the first nut, and both ends extend to the outside of the first nut, and the pairs of fasteners are screwed onto the two ends of the stud by means of threaded connection; the locking structure also includes a through hole; the through hole is opened on the screw and is used to cooperate with the stud.

[0011] As an improvement, the screw cap has a hexagonal structure, and the bottom end of the screw cap is provided with a cross groove.

[0012] As an improvement, the threads of the first nut and the second nut are in opposite directions.

[0013] As an improvement, the gasket is made of an elastic material.

[0014] III. Beneficial Effects

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] 1. By using a first nut and a second nut with opposite threads, along with a stud inserted into the first nut and the mutual cooperation between the fastener and the through hole, the first nut and the second nut can be effectively prevented from falling off, further improving the strength and stability of the fastening screw.

[0017] 2. Through the two elastic washers squeezed together, due to their own elasticity, the first nut and the second nut can be pushed in the opposite direction. The first nut and the second nut are tightly connected to the screw, which can effectively prevent the first nut and the second nut from loosening. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a fastening screw according to the present invention. Figure 1 .

[0019] Figure 2 This is a three-dimensional schematic diagram of a fastening screw according to the present invention. Figure 2 .

[0020] Figure 3 This is a three-dimensional schematic diagram of a fastening screw according to the present invention. Figure 3 .

[0021] Figure 4 This is a partial structural diagram of a fastening screw according to the present invention.

[0022] Figure 5 This is a schematic diagram of the structure of a washer for fastening screws according to this utility model.

[0023] As shown in the figure: 1. Screw; 2. Screw cap; 3. Phillips head; 4. Washer; 5. First nut; 6. Second nut; 7. Stud; 8. Fastener; 9. Through hole. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Combined with appendix Figure 1 and attached Figure 3 A fastening screw includes a screw rod 1 and a screw cap 2. The screw cap 2 is integrally formed at the bottom end of the screw rod 1. The screw cap 2 has a hexagonal structure and a cross groove 3 at the bottom end. Due to the hexagonal structure of the screw cap 2 and the design of the cross groove 3 at the bottom end, the whole can be fixed in a variety of ways. The structure is simple and easy to use.

[0027] Combined with appendix Figure 2 It also includes: a first nut 5 and a second nut 6; the first nut 5 and the second nut 6 are respectively threaded to the top end of the screw 1, and the threads of the first nut 5 and the second nut 6 are opposite in direction. Because the threads of the first nut 5 and the second nut 6 are opposite in direction, the first nut 5 and the second nut 6 can be tightly connected to the screw 1.

[0028] Combined with appendix Figure 4 The first nut 5 is provided with a locking structure for use with the screw rod 1. The locking structure includes a stud 7 and fasteners 8. The stud 7 is horizontally inserted into the first nut 5, and both ends extend to the outside of the first nut 5. Pairs of fasteners 8 are screwed onto the two ends of the stud 7 by means of threaded connection. The locking structure also includes a through hole 9. The through hole 9 is opened on the screw rod 1 and is used to cooperate with the stud 7. The first nut 5 and the second nut 6 are screwed onto the screw rod 1 respectively, so that the through hole 9 on the screw rod 1 is aligned with the through hole on the first nut 5. Then the stud 7 is passed through the first nut 5 and the screw rod 1 in sequence, and is locked and fixed on both sides of the stud 7 by means of fasteners 8, which are also fastening nuts.

[0029] Combined with appendix Figure 5 Washer 4; Pairs of washers 4 are attached to each other and directly sleeved on the screw 1, and the edges of the washers 4 are raised. The washers 4 are made of elastic material and have a certain elasticity. When they are attached to each other, they will generate an outward pushing force, which can push the first nut 5 and the second nut 6 in the opposite direction. Since the first nut 5 and the second nut 6 are tightly connected to the screw 1, the first nut 5 and the second nut 6 can be effectively prevented from loosening.

[0030] In specific implementation of this utility model:

[0031] First, remove the washer 4, the first nut 5 and the second nut 6 directly. Then, screw the screw 1 into the connector and put on the two washers 4 so that they are facing each other. Next, thread the first nut 5 and the second nut 6 respectively, so that the through hole 9 on the screw 1 is aligned with the through hole on the first nut 5. Then, pass the stud 7 through the first nut 5 and the screw 1 in sequence, and lock it in place on both sides of the stud 7 using the fasteners 8 composed of fastening nuts.

[0032] Because the threads of the first nut 5 and the second nut 6 are opposite, the first nut 5 and the second nut 6 can be tightly connected to the screw 1. Moreover, the washer 4 has a certain elasticity. When they are pressed together, they will generate an outward pushing force, which can push the first nut 5 and the second nut 6 in the opposite direction. In addition, the stud 7 passes through the first nut 5, which can effectively prevent the first nut 5 from loosening. This effectively solves the problem of existing screws being easy to loosen and improves the stability and safety of the fastening screw.

[0033] 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A fastening screw comprising a screw shaft (1) and a screw cap (2) which is integrally formed at the bottom end of the screw shaft (1), characterized in that, Also includes: First nut (5) and second nut (6); the first nut (5) and second nut (6) are respectively threaded to the top of the screw (1), and the first nut (5) is provided with a locking structure for use with the screw (1); Gasket (4); Pairs of gaskets (4) are symmetrical and closely fitted together and directly sleeved on the screw (1), and the middle of the gasket (4) is high and the surrounding area is low.

2. A fastening screw according to claim 1, characterized in that: The locking structure includes a stud (7) and fasteners (8); the stud (7) is horizontally inserted into the first nut (5) and both ends extend to the outside of the first nut (5); the pairs of fasteners (8) are screwed onto the two ends of the stud (7) by means of threaded connection. The locking structure also includes a through hole (9); the through hole (9) is opened on the screw (1) and is used to cooperate with the stud (7).

3. A fastening screw according to claim 1, characterized in that: The screw cap (2) has a hexagonal structure, and the bottom end of the screw cap (2) is provided with a cross groove (3).

4. A fastening screw according to claim 1, characterized in that: The threads of the first nut (5) and the second nut (6) are opposite.

5. A fastening screw according to claim 1, characterized in that: The gasket (4) is made of elastic material.

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