A high-strength hexagonal bolt

Abstract

This utility model relates to the field of hexagonal bolt technology and discloses a high-strength hexagonal bolt, including a bolt head and a stud. One end of the stud is connected to one end of the bolt head. A nut is fitted onto the outer surface of the stud. A washer is fitted onto the outer surface of the stud and located between the nut and the bolt head. Several spring tabs are mounted on the upper end of the washer. These spring tabs are arranged in a circular array around the axis of the stud and are all disposed on the upper surface of the washer. The upper surface of the spring tabs is used to abut against the lower end of the nut. This utility model uses spring tabs to abut against the lower end of the nut. Because one end of the spring tab is connected to the washer and the spring tab is curved, it possesses elasticity. By abutting against the lower surface of the nut, when the nut loosens due to high-frequency vibration, the spring tabs will extend and open, always abutting against the lower surface of the nut, thus slowing down the loosening of the nut and delaying the time it takes for the nut to completely fall off.

Description

Technical Field

[0001] This utility model relates to the field of hexagonal bolt technology, specifically a high-strength hexagonal bolt. Background Technology

[0002] Bolts are mechanical parts, cylindrical threaded fasteners that are fitted with nuts. They consist of a head and a threaded shank and require a nut to fasten two parts with through holes. This type of connection is called a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so bolted connections are detachable connections. According to the force applied to the connection, bolts are classified as ordinary bolts and bolts for bolts with reamed holes. According to the head shape, bolts are classified as hexagonal, round, square, countersunk, etc., with hexagonal heads being the most commonly used.

[0003] When existing hex bolts are used in a vibrating environment, the nut is prone to vibrating and falling off the bolt. Although washers and other aids are used, the nut still falls off due to vibration and is not completely restrained, causing the nut to quickly lose its tightening function. Utility Model Content

[0004] This utility model provides a high-strength hexagonal bolt with the beneficial effect of preventing loosening. It solves the problem mentioned in the background art that the nut is prone to vibrating and falling off the bolt. Although the use of washers and other auxiliary materials is used, the nut still falls off due to vibration and does not completely restrain it, causing the nut to quickly lose its fastening function.

[0005] This utility model provides the following technical solution: a high-strength hexagonal bolt, comprising:

[0006] Bolt head;

[0007] A stud, one end of which is connected to one end of a bolt head;

[0008] Nut, the nut being fitted onto the outer surface of the stud;

[0009] A washer, wherein the washer is sleeved on the outer surface of the stud and located between the nut and the bolt head, and a plurality of spring tabs are installed on the upper end of the washer;

[0010] Several of the aforementioned spring pieces are arranged in a circular array around the axis of the stud and are all disposed on the upper end face of the washer. The upper end face of the spring pieces is used to abut against the lower end of the nut.

[0011] As an optional embodiment of the high-strength hexagonal bolt of this utility model, the lower end of the nut is provided with an annular groove, which is used to accommodate several of the spring pieces.

[0012] As an optional embodiment of the high-strength hexagonal bolt of this utility model, the lower end of the nut is further provided with several ingot grooves, which are connected to the annular grooves, and the ingot grooves are used for applying screw glue.

[0013] As an optional solution for the high-strength hexagonal bolt of this utility model, the outer surface of the stud is also fitted with a card, and the outer surface of the card is provided with a plurality of inclined grooves, which are arranged in a ring array around the axis of the stud.

[0014] The card is located between the washer and the nut, and the diameter of the card is the same as the diameter of the nut;

[0015] The spring clip is used to penetrate the inclined slot.

[0016] As an optional solution for the high-strength hexagonal bolt of this utility model, wherein: one end of the spring is connected to an external thread, and the cross-section of the spring and the external thread is barbed;

[0017] The lower end face of the external thread is used to abut against the card.

[0018] As an optional embodiment of the high-strength hexagonal bolt of this utility model, the outer surface of the stud is further provided with external threads, and the nut is connected to the outer surface of the stud through the external threads.

[0019] This utility model has the following beneficial effects:

[0020] 1. This high-strength hexagonal bolt uses a spring clip to abut against the lower end of the nut. Since one end of the spring clip is connected to the washer and the spring clip is curved, it is elastic. By abutting against the lower end face of the nut, the spring clip will extend and open when the nut loosens due to high-frequency vibration, and will always abut against the lower end face of the nut, thereby slowing down the loosening of the nut and delaying the time it takes for the nut to completely fall off.

[0021] 2. This high-strength hexagonal bolt features a spring plate that unfolds with the external thread, ensuring that the spring plate and the external thread always contact the lower end of the nut. Furthermore, since the external thread can bend downwards, when the nut is subjected to vibration and fluctuations, the external thread is deformed by the nut, further enhancing the contact with the nut and reducing the possibility of the nut falling off the stud. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a first side view of the entire utility model.

[0024] Figure 3This is a second side view of the entire utility model.

[0025] In the diagram: 1. Bolt head; 2. Stud; 3. Nut; 4. Washer; 5. Spring; 6. Through hole; 7. Clip; 8. Slant groove; 9. Circular groove; 10. Ingot groove; 11. External thread. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] Please see Figures 1-3 One type of high-strength hexagonal bolt includes:

[0029] Bolt head 1;

[0030] Stud 2, one end of stud 2 is connected to one end of bolt head 1;

[0031] Nut 3 is fitted onto the outer surface of stud 2;

[0032] Washer 4 is fitted on the outer surface of stud 2 and located between nut 3 and bolt head 1. Several spring pieces 5 are installed on the upper end of washer 4.

[0033] Several spring pieces 5 are arranged in a ring around the axis of the stud 2 and are all disposed on the upper end surface of the washer 4. The upper end surface of the spring pieces 5 is used to abut against the lower end of the nut 3.

[0034] The outer surface of the stud 2 is also provided with an external thread 11, and the nut 3 is connected to the outer surface of the stud 2 through the external thread 11.

[0035] according to Figure 1 As shown, when it is necessary to use bolts to fix an object, the stud 2 is inserted into the hole of the object, and then the washer 4 and the nut 3 are successively fitted onto the outer surface of the stud 2. The nut 3 is threadedly connected to the external thread 11. By rotating the nut 3, the nut 3 gradually approaches the washer 4, and the spring piece 5 abuts against the lower end of the nut 3. Since one end of the spring piece 5 is connected to the washer 4 and the spring piece 5 is curved, the spring piece 5 has elasticity. By abutting against the lower end face of the nut 3, when the nut 3 loosens due to high-frequency vibration, the spring piece 5 will extend and open, always abutting against the lower end face of the nut 3, thereby slowing down the loosening of the nut 3 and delaying the time for the nut to completely fall off.

[0036] Example 2

[0037] This embodiment is an improvement upon embodiment 1. For details, please refer to [link / reference]. Figures 1-3 The lower end of the nut 3 is provided with a circular groove 9, which is used to accommodate several spring pieces 5;

[0038] The lower end of the nut 3 is also provided with several ingot grooves 10, which are connected to the annular groove 9. The ingot grooves 10 are used for applying screw glue.

[0039] The outer surface of the stud 2 is also fitted with a card 7, and the outer surface of the card 7 is provided with a number of inclined grooves 8, which are arranged in a ring array around the axis of the stud 2.

[0040] Card 7 is located between gasket 4 and nut 3, and the diameter of card 7 is the same as the diameter of nut 3;

[0041] Spring piece 5 is used to penetrate the inclined groove 8;

[0042] One end of the spring piece 5 is connected to an external thread 11, and the cross-section of the spring piece 5 and the external thread 11 is barbed.

[0043] The lower end face of the external thread 11 is used to abut against the card 7.

[0044] according to Figure 2 and Figure 3 As shown, the cross-section formed by the combination of the spring piece 5 and the external thread 11 is hook-shaped. When the nut 3 is rotated and installed, the spring piece 5 and the external thread 11 are rotated and connected at the annular groove 9. The upper ends of the spring piece 5 and the external thread 11 will abut against the lower end face of the nut 3. When the nut 3 is vibrated and rotated, the spring piece 5 and the external thread 11 unfold, so that the spring piece 5 and the external thread 11 can always abut against the lower end of the nut 3. Since the external thread 11 can bend downward, when the nut 3 is vibrated and fluctuates up and down, the external thread 11 is deformed by the nut 3, thereby further improving the contact with the nut 3 and reducing the possibility of the nut 3 falling off the stud 2.

[0045] It should be noted that the gasket 4 is provided with a through hole 6, the size of which is the same as the size of the spring piece 5 and the external thread 11 when unfolded. The spring piece 5 and the external thread 11 are formed by punching holes in the gasket 4.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high-strength hexagonal bolt, characterized in that, include: Bolt head (1); Stud (2), one end of which is connected to one end of bolt head (1); Nut (3), the nut (3) is fitted onto the outer surface of the stud (2); A washer (4) is fitted on the outer surface of the stud (2) and located between the nut (3) and the bolt head (1). Several spring pieces (5) are installed on the upper end of the washer (4). Several of the spring pieces (5) are arranged in a ring around the axis of the stud (2) and are all disposed on the upper end surface of the gasket (4). The upper end surface of the spring piece (5) is used to abut against the lower end of the nut (3).

2. The high-strength hexagonal bolt according to claim 1, characterized in that: The lower end of the nut (3) is provided with an annular groove (9), which is used to accommodate several of the spring pieces (5).

3. The high-strength hexagonal bolt according to claim 2, characterized in that: The lower end of the nut (3) is also provided with several ingot grooves (10), which are connected to the annular groove (9). The ingot grooves (10) are used to apply screw glue.

4. The high-strength hexagonal bolt according to claim 2, characterized in that: The outer surface of the stud (2) is also fitted with a card (7), and the outer surface of the card (7) is provided with a plurality of inclined grooves (8), and the plurality of inclined grooves (8) are arranged in a ring array around the axis of the stud (2); The card (7) is located between the gasket (4) and the nut (3), and the diameter of the card (7) is the same as the diameter of the nut (3); The spring piece (5) is used to penetrate the inclined groove (8).

5. The high-strength hexagonal bolt according to claim 4, characterized in that: One end of the spring piece (5) is connected to an external thread (11), and the cross-section of the spring piece (5) and the external thread (11) is barbed. The lower end face of the external thread (11) is used to abut against the card (7).

6. The high-strength hexagonal bolt according to claim 1, characterized in that: The outer surface of the stud (2) is also provided with an external thread (11), and the nut (3) is connected to the outer surface of the stud (2) through the external thread (11).

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