Multi-step high-strength flange bolt

Abstract

The utility model discloses a multi-step high-strength flange bolt which comprises a bolt end portion, a flange portion arranged below the bolt end portion, a first step portion arranged below the flange portion, a second step portion arranged below the first step portion and a bolt rod portion arranged below the second step portion. The outer diameters of the bolt end part, the first step part, the second step part and the bolt rod part are gradually reduced, the flange part is larger than the outer side walls of the bolt end part, the first step part and the second step part, and vertical sliding grooves are formed in the outer side walls of the flange part, and are used for being slidably connected with the adjusting part. According to the bolt, the groove is formed in the step part, and the adjusting part is additionally arranged, so that the whole structure of the bolt can better adapt to parts with different sizes, the applicability is improved, the stability during connection is ensured, and the connection strength is further ensured.

Description

Technical Field

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

[0002] Multi-step bolts are generally used to connect and fix different parts in industrial products. However, since the structure of stepped bolts is generally fixed, they have low adaptability to the adjustment and changes of different parts in industrial products, which leads to the problem of unstable connection strength and room for improvement. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the aforementioned background technology by providing a multi-step bolt with high applicability and strong connection stability.

[0004] To achieve the above objectives, this utility model provides a multi-step high-strength flange bolt, which adopts the following technical solution:

[0005] A multi-step high-strength flange bolt includes a bolt end, a flange portion below the bolt end, a first step portion below the flange portion, a second step portion below the first step portion, and a bolt shank portion below the second step portion. The outer diameters of the bolt end, the first step portion, the second step portion, and the bolt shank portion gradually decrease. The flange portion is larger than the bolt end. Vertical grooves are provided on the outer walls of the first step portion and the second step portion for sliding connection adjustment portions.

[0006] A further improvement of this utility model regarding a multi-step high-strength flange bolt is that the adjusting part includes an adjusting ring, and the inner side wall of the adjusting ring is provided with an inserting part that engages with a sliding groove.

[0007] A further improvement of this utility model of a multi-step high-strength flange bolt is that a vertical second sliding groove is provided on the outer wall of the adjusting ring, a second adjusting part is sleeved on the outer side of the adjusting part, the second adjusting part includes a second adjusting ring, and a second embedding part that is engaged with the second sliding groove is provided on the inner wall of the second adjusting ring.

[0008] A further improvement of this utility model of a multi-step high-strength flange bolt is that the second groove is offset from the embedded part.

[0009] A further improvement of this utility model of a multi-step high-strength flange bolt is that an inlet portion is provided at the lower end of the bolt shank.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model improves the applicability and ensures the stability of the connection by slotting the stepped part and adding an adjustment part, so that the overall structure of the bolt can better adapt to parts of different diameters, thus ensuring the connection strength. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the adjustment section of this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the adjustment part of this utility model.

[0015] In the figure: 1 Bolt end, 2 Flange, 3 First step, 4 Second step, 5 Slide groove, 6 Bolt shank, 7 Inlet, 8 Adjustment, 9 Embedding, 10 Second slide groove. Detailed Implementation

[0016] 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.

[0017] like Figure 1 and Figure 2 As shown, a multi-step high-strength flange bolt includes a bolt end 1, a flange portion 2 below the bolt end, a first step portion 3 below the flange portion, a second step portion 4 below the first step portion, and a bolt shank portion 6 below the second step portion. The above structure can be integrally formed. The outer diameters of the bolt end, the first step portion, the second step portion, and the bolt shank portion gradually decrease, with the flange portion being larger than the bolt end. Vertical grooves 5 are provided on the outer walls of the first and second step portions for sliding connection of the adjustment portion 8. An inlet portion 7 is provided at the lower end of the bolt shank portion.

[0018] Specifically, the adjusting part includes an adjusting ring, and the inner wall of the adjusting ring is provided with an insert 9 that engages with a sliding groove. The adjusting ring is externally positioned and comes in various sizes. The adjusting ring outside the first stepped portion is larger than the adjusting ring outside the second stepped portion.

[0019] like Figure 3 As shown, further, a vertical second sliding groove 10 is provided on the outer wall of the adjusting ring, and a second adjusting part is sleeved on the outer side of the adjusting part. The second adjusting part includes a second adjusting ring, and a second embedding part that engages with the second sliding groove is provided on the inner wall of the second adjusting ring. Preferably, the second sliding groove and the embedding part are offset.

[0020] The working principle of this utility model is as follows: Bolts are passed through different parts, with some parts placed outside the first step and the second step. Then, nuts are used to screw the bolt shank or the bolt shank is directly screwed into the pre-made screw hole to achieve the connection of different parts. When the inner diameter of the parts is deviated, adjustment rings are arranged to adjust the fit, so that the bolt and the parts can be in stable contact, thereby ensuring the connection strength.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-step high-strength flange bolt, characterized in that: The device includes a bolt end, a flange below the bolt end, a first step below the flange, a second step below the first step, and a bolt shank below the second step. The outer diameters of the bolt end, the first step, the second step, and the bolt shank gradually decrease. The flange is larger than the bolt end. Vertical grooves are provided on the outer walls of the first and second steps for sliding connection of the adjustment part.

2. The multi-step high-strength flange bolt according to claim 1, characterized in that: The adjustment part includes an adjustment ring, and the inner side wall of the adjustment ring is provided with an embedding part that engages with a sliding groove.

3. The multi-step high-strength flange bolt according to claim 2, characterized in that: The outer wall of the adjusting ring is provided with a vertical second sliding groove, and a second adjusting part is sleeved on the outer side of the adjusting part. The second adjusting part includes a second adjusting ring, and the inner wall of the second adjusting ring is provided with a second embedding part that is inserted into the second sliding groove.

4. The multi-step high-strength flange bolt according to claim 3, characterized in that: The second groove is offset from the embedded part.

5. A multi-step high-strength flange bolt according to claim 4, characterized in that: The lower end of the bolt rod is provided with an inlet.

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