Wear-resistant quick-mounting wire thread insert

By designing a wear-resistant, quick-installation wire thread insert, employing a spiral rod, bottom rod, and top rod structure, coated with a wear-resistant coating and polished, and combined with a tapered part design, the problem of low installation efficiency and easy wear of traditional wire thread inserts is solved, achieving both quick installation and wear resistance.

CN223938443UActive Publication Date: 2026-02-24SHENZHEN LIFAN PRECISION HARDWARE CO LTD
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Patent Information

Application Number
CN202520873590.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-02-24
Estimated Expiration
2035-05-06

AI Technical Summary

Technical Problem

Existing wire thread inserts require special tools during installation, resulting in low installation efficiency, easy wear, and short service life.

Method used

A wear-resistant quick-installation wire thread insert was designed, which adopts a spiral rod, bottom rod and top rod structure, and the surface is coated with a wear-resistant coating and polished. At the same time, a flat cone angle is designed at the head of the tapered part, which is combined with the upper and lower rotating toothed rings to mesh with the external thread of the bolt to achieve quick installation and wear resistance.

Benefits of technology

It achieves rapid installation and wear resistance of wire thread inserts, thus extending their service life.

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Abstract

The utility model relates to a wear-resistant type fast installation steel wire thread insert, which comprises a spiral ring rod, a bottom ring rod and a top ring rod, the top of the spiral ring rod is connected with the top ring rod, the bottom of the spiral ring rod is connected with the bottom ring rod, the top of the top ring rod is also provided with a plurality of limiting grooves, and the limiting grooves are connected with the spiral ring rod. An L-shaped inserting rod is further connected to the top of the top ring rod, a conical part is further arranged at the bottom end of the bottom ring rod, and upper rotating gear rings are arranged on inner rings and outer rings of the tops of the spiral ring rod, the bottom ring rod and the top ring rod; and lower rotating gear rings are arranged at the bottoms of the spiral ring rod, the bottom ring rod and the top ring rod. According to the wear-resistant rapid installation steel wire thread insert, the good wear-resistant effect is achieved through the wear-resistant coatings on the surfaces of the spiral ring rod, the bottom ring rod and the top ring rod and surface polishing, and meanwhile the rapid installation effect of a bolt is facilitated through the flat taper angles on the two sides of the head of the conical part.
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Description

Technical Field

[0001] This utility model relates to the field of wire thread insert technology, specifically a wear-resistant quick-installation wire thread insert. Background Technology

[0002] Wire thread inserts are a new type of internal thread fastener suitable for threaded connections. They are screwed into and tightened in the threaded hole of one of the connected parts to form a standard internal thread, into which the bolt is then screwed. They are spring-shaped concentric bodies with internal and external threads, precisely machined from high-strength, high-precision, and smooth-surfaced cold-rolled diamond-shaped stainless steel wire. They are primarily used to reinforce and protect the internal threads of low-strength materials.

[0003] Existing wire thread inserts typically require specialized tools for installation and have low installation efficiency. Furthermore, traditional wire thread inserts are prone to wear during frequent disassembly and installation, leading to a shortened service life. Therefore, a wear-resistant, quick-installation wire thread insert is proposed to address these issues. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a wear-resistant quick-installation wire thread insert, which has the advantages of good wear resistance and convenient installation, solving the problems of traditional wire thread inserts being inconvenient to install, easily damaged, and having a reduced service life.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant quick-installation wire thread insert, comprising a spiral rod, a bottom rod, and a top rod. The top of the spiral rod is connected to the top rod, and the bottom of the spiral rod is connected to the bottom rod. The top of the top rod is also provided with multiple limiting grooves, and the top of the top rod is also connected with an L-shaped insert. The bottom end of the bottom rod is also provided with a tapered piece. The inner and outer rings of the top of the spiral rod, the bottom rod, and the top rod are all provided with upper rotating toothed rings, and the bottom of the spiral rod, the bottom rod, and the top rod are all provided with lower rotating toothed rings.

[0006] Furthermore, the spiral rod, the bottom rod, the top rod, and the L-shaped insert are integrally formed in a spiral shape.

[0007] Furthermore, the spiral rod is internally fitted with bolts, and the slits between the upper and lower rotating gears on the inner rings of the spiral rod, the bottom rod, and the top rod engage with the external threads of the bolts.

[0008] Furthermore, a threaded sleeve is fitted around the outside of the spiral rod, and the slit between the upper rotating gear ring and the lower rotating gear ring on the outer ring of the spiral rod, the bottom rod, and the top rod engages with the internal thread of the threaded sleeve.

[0009] Furthermore, the two sides of the head of the tapered member are flattened and extend towards the bottom ring rod to form a tapered angle.

[0010] Furthermore, the surfaces of the spiral rod, the bottom rod, and the top rod are coated with a wear-resistant coating and polished.

[0011] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0012] This wear-resistant quick-installation wire thread insert achieves its excellent wear resistance through wear-resistant coatings and surface polishing on the surfaces of the spiral rod, bottom rod, and top rod. At the same time, the flat cone angles on both sides of the tapered head facilitate the quick installation of bolts. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the wear-resistant quick-installation wire thread insert of this utility model;

[0014] Figure 2 This is a structural schematic diagram of the wear-resistant quick-installation wire thread insert of this utility model from another perspective;

[0015] Figure 3 This is a cross-sectional view of the wear-resistant quick-installation wire thread insert of this utility model.

[0016] In the diagram: 1. Spiral ring rod; 2. L-shaped insert rod; 3. Bottom ring rod; 4. Top ring rod; 5. Upper rotating gear ring; 6. Lower rotating gear ring; 7. Conical part; 8. Limiting groove. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-3This embodiment of a wear-resistant quick-installation wire thread insert includes a spiral rod 1, a bottom rod 3, and a top rod 4. The spiral rod 1, bottom rod 3, top rod 4, and L-shaped insert 2 are integrally formed in a spiral shape. The surfaces of the spiral rod 1, bottom rod 3, and top rod 4 are coated with a wear-resistant coating and polished. The top of the spiral rod 1 is connected to the top rod 4, and the bottom of the spiral rod 1 is connected to the bottom rod 3. The top of the top rod 4 is also provided with multiple limiting grooves 8 to limit the wire thread. The sleeve and connector function, the top of the top ring rod 4 is also connected to the L-shaped insert rod 2, which serves to limit or fix it. The bottom end of the bottom ring rod 3 is also provided with a conical part 7. The two sides of the head of the conical part 7 are flat and extend towards the bottom ring rod 3 to form a cone angle, which facilitates the rotation of the bolt insertion end. The inner and outer rings of the top of the spiral ring rod 1, the bottom ring rod 3 and the top ring rod 4 are all provided with upper rotating toothed rings 5, and the bottom of the spiral ring rod 1, the bottom ring rod 3 and the top ring rod 4 are all provided with lower rotating toothed rings 6.

[0019] It should be noted that the connector is fitted onto the outside of the wire thread insert, and the bolt is fixed inside the wire thread insert to secure the connection.

[0020] In this embodiment, the spiral rod 1 is provided with a bolt inside, and the slit between the upper rotating toothed ring 5 and the lower rotating toothed ring 6 opened on the inner ring of the spiral rod 1, the bottom rod 3 and the top rod 4 engages with the external thread of the bolt.

[0021] It should be noted that rotating the bolt allows the bolt surface thread to extend along the groove between the upper rotating toothed ring 5 and the lower rotating toothed ring 6 into the inside of the wire thread insert.

[0022] In this embodiment, a threaded sleeve is fitted around the outside of the spiral rod 1, and the slits between the upper rotating toothed ring 5 and the lower rotating toothed ring 6 on the outer rings of the spiral rod 1, the bottom rod 3, and the top rod 4 engage with the internal threads of the connector.

[0023] It should be noted that rotating the connector allows the internal thread of the connector to be fitted onto the outside of the threaded sleeve along the gap between the upper rotating gear ring 5 and the lower rotating gear ring 6.

[0024] The working principle of the above embodiments is as follows:

[0025] When it is necessary to enhance the strength of the connector and the product material with a wire thread insert, the wire thread insert can be placed inside the connector by rotating the gap between the upper rotating toothed ring 5 and the lower rotating toothed ring 6 on the outer ring of the spiral ring rod 1, the bottom ring rod 3 and the top ring rod 4 into the internal thread of the connector. Then, the external thread of the practical bolt rotates along the cone angle of the tapered part 7 and enters the gap between the upper rotating toothed ring 5 and the lower rotating toothed ring 6 inside the wire thread insert to achieve the connection.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] 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.

Claims

1. A wear-resistant quick-installation wire thread insert, comprising a helical rod (1), a bottom rod (3), and a top rod (4), characterized in that: The top of the spiral rod (1) is connected to the top rod (4), and the bottom of the spiral rod (1) is connected to the bottom rod (3). The top of the top rod (4) is also provided with multiple limiting grooves (8). The top of the top rod (4) is also connected with an L-shaped insert (2). The bottom of the bottom rod (3) is also provided with a tapered part (7). The top inner and outer rings of the spiral rod (1), the bottom rod (3) and the top rod (4) are all provided with upper rotating toothed rings (5). The bottom of the spiral rod (1), the bottom rod (3) and the top rod (4) are all provided with lower rotating toothed rings (6).

2. The wear-resistant quick-installation wire thread insert according to claim 1, characterized in that: The spiral rod (1), the bottom rod (3), the top rod (4) and the L-shaped insert (2) are integrally formed in a spiral shape.

3. The wear-resistant quick-installation wire thread insert according to claim 1, characterized in that: Bolts are installed inside the spiral rod (1), and the slits between the upper rotating gear ring (5) and the lower rotating gear ring (6) opened on the inner rings of the spiral rod (1), the bottom rod (3), and the top rod (4) engage with the external threads of the bolts.

4. The wear-resistant quick-installation wire thread insert according to claim 1, characterized in that: The spiral rod (1) is fitted with a threaded sleeve, and the gap between the upper rotating toothed ring (5) and the lower rotating toothed ring (6) on the outer ring of the spiral rod (1), the bottom rod (3), and the top rod (4) engages with the internal thread of the threaded sleeve.

5. The wear-resistant quick-installation wire thread insert according to claim 1, characterized in that: The head of the tapered member (7) is flat on both sides and extends towards the bottom ring rod (3) to form a tapered angle.

6. The wear-resistant quick-installation wire thread insert according to claim 1, characterized in that: The spiral rod (1), the bottom rod (3), and the top rod (4) are coated with a wear-resistant coating and polished.