High-temperature-resistant connecting nut

Abstract

The utility model discloses a high-temperature-resistant connecting nut which comprises a first high-temperature-resistant nut body and a second high-temperature-resistant nut body, the first high-temperature-resistant nut body is provided with a first groove, and the second high-temperature-resistant nut body is provided with a second groove. The first groove and the second groove are eccentrically arranged relative to the threaded holes of the first high-temperature-resistant nut body and the second high-temperature-resistant nut body, a positioning plate is inserted between the first groove and the second groove, an annular groove is inwards formed in the outer side of the second high-temperature-resistant nut body, and a penetrating groove is formed in the side, facing the threaded hole of the second high-temperature-resistant nut body, of the groove bottom of the annular groove. A limiting rod is arranged in the penetrating groove, a fixing piece is clamped in the annular groove and abuts against the limiting rod, and the other end of the limiting rod is used for abutting against the bolt. The two sets of nuts are used for limiting, the stability of connection with the bolt is improved, meanwhile, the limiting rod is arranged for further abutting against the bolt, and the connection stability is further improved; on the other hand, limiting of the limiting rod is achieved through the fixing piece, and the fixing piece is easy and convenient to install.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, specifically to a high-temperature resistant connecting nut. Background Technology

[0002] Currently, the connection between common high-temperature nuts and bolts relies on their own threads, which is prone to loosening and has low connection stability. To solve the above problems, the existing Chinese utility model patent with application number 202420878680.6 discloses a self-locking high-temperature nut, which improves the connection stability between the nut and bolt by adding an anti-slip pad. However, the linkage of the anti-slip pad during the rotation of the nut results in a problem of uneven connection between the nut and the bolt, thus leaving 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 high-temperature resistant connecting nut with good stability when connected to a screw.

[0004] To achieve the above objectives, this utility model provides a high-temperature resistant connecting nut, which adopts the following technical solution:

[0005] A high-temperature resistant connecting nut includes a first high-temperature resistant nut body and a second high-temperature resistant nut body. The lower end of the first high-temperature resistant nut body has a first groove facing upward, and the upper end of the second high-temperature resistant nut body has a second groove facing downward. The first groove and the second groove are corresponding to each other and are eccentrically positioned relative to the threaded holes of the first high-temperature resistant nut body and the second high-temperature resistant nut body. A positioning plate is inserted between the first groove and the second groove. The lower outer side of the second high-temperature resistant nut body has an annular groove facing inward. The bottom of the annular groove has a through groove facing the threaded hole side of the second high-temperature resistant nut body. A limiting rod is provided in the through groove. A fixing member is inserted into the annular groove. The fixing member abuts against the limiting rod, and the other end of the limiting rod is used to abut against a bolt.

[0006] A further improvement of this utility model of a high-temperature resistant connecting nut is that the second groove is provided with a positioning groove communicating with the annular groove, and a positioning rod is provided on the positioning plate, the positioning rod being inserted into the positioning groove to abut against the fixing component.

[0007] A further improvement of this utility model of a high-temperature resistant connecting nut is that at least two sets of through slots are provided, arranged symmetrically.

[0008] A further improvement of this utility model of a high-temperature resistant connecting nut is that at least two sets of positioning grooves are provided, and the fixing component includes two identical semi-annular clamping plates.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This utility model improves the stability of the bolt connection by limiting the position of two sets of nuts. At the same time, it is equipped with a limiting rod to further tighten the bolt and further improve the connection stability. On the other hand, the limiting rod is limited by a fixing component, which is simple and convenient to install. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] In the figure: 1 First high-temperature resistant nut body, 2 Second high-temperature resistant nut body, 3 First groove, 4 Second groove, 5 Annular groove, 6 Through groove, 7 Positioning groove. Detailed Implementation

[0013] 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.

[0014] like Figure 1 As shown, a high-temperature resistant connecting nut includes a first high-temperature resistant nut body 1 and a second high-temperature resistant nut body 2. The lower end of the first high-temperature resistant nut body has a first groove 3 facing upwards, and the upper end of the second high-temperature resistant nut body has a second groove 4 facing downwards. The first and second grooves correspond to each other and are eccentrically positioned relative to the threaded holes of the first and second high-temperature resistant nut bodies. A positioning plate (not shown) is inserted between the first and second grooves. An annular groove 5 is provided on the lower outer side of the second high-temperature resistant nut body, and a through groove 6 is provided at the bottom of the annular groove towards the threaded hole side of the second high-temperature resistant nut body. A limiting rod is provided in the through groove, and a fixing component is inserted into the annular groove, abutting against the limiting rod. The other end of the limiting rod is used to abut against a bolt. The positioning plate, limiting rod, and fixing component are all made of high-temperature resistant material. The end of the limiting rod abutting against the bolt has anti-slip texture.

[0015] Furthermore, the second groove has a positioning groove 7 that connects to the annular groove. A positioning rod is provided on the positioning plate, and the positioning rod is inserted into the positioning groove to abut against the fixing member. At least two sets of through grooves are provided, symmetrically arranged. At least two sets of positioning grooves are provided, and the fixing member includes two identical semi-annular retaining plates.

[0016] The working principle of this utility model is as follows: the second high-temperature resistant nut body is first screwed with bolts, and the positioning plate is arranged so that the two sets of nuts form a whole. At this time, the positioning rod protrudes slightly from the positioning groove. After the nut connecting bolt is in place, the limiting rod is inserted, and then the fixing part is inserted again so that the positioning rod abuts against the fixing part, thereby achieving further stable positioning of the fixing part. At this time, the limiting rod abuts against the bolt, further ensuring the connection stability of the whole nut.

[0017] 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 high-temperature resistant connecting nut, characterized in that: The device includes a first high-temperature resistant nut body and a second high-temperature resistant nut body. The lower end of the first high-temperature resistant nut body has a first groove facing upwards, and the upper end of the second high-temperature resistant nut body has a second groove facing downwards. The first groove and the second groove are corresponding to each other and are eccentrically positioned relative to the threaded holes of the first high-temperature resistant nut body and the second high-temperature resistant nut body. A positioning plate is inserted between the first groove and the second groove. The lower outer side of the second high-temperature resistant nut body has an annular groove facing inwards. The bottom of the annular groove has a through groove on the side of the threaded hole of the second high-temperature resistant nut body. A limiting rod is provided in the through groove. A fixing member is inserted into the annular groove. The fixing member abuts against the limiting rod. The other end of the limiting rod is used to abut against a bolt.

2. The high-temperature resistant connecting nut according to claim 1, characterized in that: The second groove has a positioning groove that communicates with the annular groove. The positioning plate has a positioning rod that is inserted into the positioning groove and abuts against the fixing member.

3. The high-temperature resistant connecting nut according to claim 2, characterized in that: The slots are provided in at least two sets, arranged symmetrically.

4. A high-temperature resistant connecting nut according to claim 3, characterized in that: The positioning groove is provided in at least two sets, and the fixing member includes two identical semi-circular clamping plates.

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