A type of locking wear-resistant threaded insert

Abstract

This utility model relates to the field of threaded insert technology and discloses a locking type wear-resistant threaded insert. The present invention includes a threaded insert with a set of locking rings on both its upper and lower sides. A first wear-resistant anti-slip ring is placed on the outer side of the locking ring, and a second wear-resistant anti-slip ring is placed on the inner side wall of the locking ring. By setting the first and second wear-resistant anti-slip rings on the outer and inner sides of the locking rings on both sides of the threaded insert, this utility model achieves double contact between the insert and external objects, and between the insert and external bolts. The friction of the contact surfaces is significantly improved, effectively resisting vibration and impact, preventing loosening of the connection, and greatly improving locking stability. Furthermore, the first and second wear-resistant anti-slip rings are engaged and fixed to the locking rings through a "positioning pin and retaining ring" structure. After wear, there is no need to replace the entire insert; the old anti-slip ring can be directly removed and replaced with a new one, shortening maintenance time and reducing spare parts costs.

Description

Technical Field

[0001] This utility model belongs to the field of threaded insert technology, specifically a locking type wear-resistant threaded insert. Background Technology

[0002] In mechanical connections, threaded inserts, as key components for enhancing the strength of threaded holes and repairing damaged threads, are widely used in aerospace, automotive manufacturing, and precision instruments. However, in practical use, existing threaded inserts often rely on their own thread structure to mate with external objects and bolts. Under conditions of vibration and impact, insufficient friction at the mating surfaces can easily lead to loosening, resulting in decreased connection reliability and even equipment failure. While some inserts incorporate wear-resistant and anti-slip structures (such as wear rings), they are often connected to the insert body using integral injection molding or other fixing methods. When wear-resistant components wear down due to long-term friction, the entire insert needs to be replaced, increasing maintenance costs, extending equipment downtime, and reducing efficiency. Therefore, we propose a locking type wear-resistant threaded insert. Utility Model Content

[0003] The purpose of this invention is to provide a locking type wear-resistant threaded sleeve to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a locking type wear-resistant threaded sleeve, comprising a threaded sleeve, wherein a set of locking rings is provided on both the upper and lower sides of the threaded sleeve, a first wear-resistant anti-slip ring is placed on the outer side of the locking ring, and a second wear-resistant anti-slip ring is placed on the inner side wall of the locking ring, a first positioning post is evenly arranged on the inner side wall of the first wear-resistant anti-slip ring, a first retaining ring is fixedly sleeved on the outer side of the first positioning post, a second positioning post is evenly arranged on the outer side wall of the second wear-resistant anti-slip ring, a second retaining ring is fixedly sleeved on the outer side of the second positioning post, the first positioning post and the second positioning post are both inserted into the locking ring, and the first retaining ring and the second retaining ring are both engaged in the locking ring.

[0005] Preferably, the threaded sleeve and the two sets of locking rings are all integrally formed, the first wear-resistant anti-slip ring, the first positioning post and the first retaining ring are integrally formed, and the second wear-resistant anti-slip ring, the second positioning post and the second retaining ring are integrally formed.

[0006] Preferably, the outer side of the locking ring is provided with a first annular groove, the inner sidewall of the first annular groove is provided with a first insertion hole, and the inner sidewall of the first insertion hole is provided with a first annular slot.

[0007] Preferably, the inner wall of the first wear-resistant anti-slip ring is disposed in the first annular groove, the first positioning post is inserted into the first insertion hole, and the first retaining ring is engaged in the first annular retaining groove.

[0008] Preferably, the inner wall of the locking ring is provided with a second annular groove, the inner wall of the second annular groove is provided with a second insertion hole, and the inner wall of the first insertion hole is provided with a second annular slot.

[0009] Preferably, the outer wall of the second wear-resistant anti-slip ring is disposed in the first annular groove, the second positioning post is inserted into the first insertion hole, and the second retaining ring is engaged in the first annular retaining groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a first wear-resistant anti-slip ring and a second wear-resistant anti-slip ring on the outer and inner sides of the locking ring on both the upper and lower sides of the threaded sleeve, a double fit between the "sleeve and external object" and the "sleeve and external bolt" is achieved, significantly improving the friction of the contact surface, effectively resisting vibration and impact, preventing loosening of the connection, and greatly improving the locking stability; in addition, the first and second wear-resistant anti-slip rings are fixed to the locking ring by a "positioning pin and retaining ring" structure, so after wear, there is no need to replace the entire threaded sleeve, and the old anti-slip ring can be directly removed and replaced with a new one, shortening maintenance time and reducing spare parts costs.

[0011] The first and second wear-resistant anti-slip rings are fixed by a double structure of "positioning pins inserted into the holes and retaining rings inserted into the annular grooves". Together with the anti-slip rings fitting snugly into the annular grooves, they form a "triple positioning". The positioning pins restrict the circumferential rotation of the anti-slip rings, the retaining rings prevent the anti-slip rings from falling off axially, and the annular grooves constrain the radial displacement of the anti-slip rings. This completely avoids displacement or loosening of the anti-slip rings under friction and vibration conditions, and the stability is far superior to that of a single fixing method. Attached Figure Description

[0012] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0013] In the attached diagram: Figure 1 This is a schematic diagram of the structure of a locking type wear-resistant threaded sleeve according to the present invention; Figure 2 This is a front sectional view of a locking type wear-resistant threaded sleeve according to the present invention; Figure 3 This is a top sectional view of a locking type wear-resistant threaded sleeve according to the present invention.

[0014] In the diagram: 1. Threaded insert; 11. Locking ring; 12. First wear-resistant anti-slip ring; 13. Second wear-resistant anti-slip ring; 14. First positioning pin; 15. First retaining ring; 16. Second positioning pin; 17. Second retaining ring. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-3 A type of locking wear-resistant threaded insert includes a threaded insert 1. A set of locking rings 11 are fixedly disposed on both the upper and lower sides of the threaded insert 1. A first wear-resistant anti-slip ring 12 is placed on the outer side of the locking ring 11, and a second wear-resistant anti-slip ring 13 is placed on the inner side wall of the locking ring 11. A first positioning post 14 is uniformly fixedly disposed on the inner side wall of the first wear-resistant anti-slip ring 12, and a first retaining ring 15 is fixedly sleeved on the outer side of the first positioning post 14. A second positioning post 16 is uniformly fixedly disposed on the outer side wall of the second wear-resistant anti-slip ring 13, and a second retaining ring 17 is fixedly sleeved on the outer side of the second positioning post 16. Both the first positioning post 14 and the second positioning post 16... Inserted into the locking ring 11, the first retaining ring 15 and the second retaining ring 17 are both engaged in the locking ring 11. Since the first wear-resistant anti-slip ring 12 and the second wear-resistant anti-slip ring 13 are engaged and fixed to the outer and inner sides of the locking ring 11 by the first retaining ring 15 and the second retaining ring 17, the first wear-resistant anti-slip ring 12 and the second wear-resistant anti-slip ring 13 can be directly removed and replaced. The threaded sleeve 1 and the two sets of locking rings 11 are all integrally molded. The first wear-resistant anti-slip ring 12, the first positioning post 14 and the first retaining ring 15 are integrally molded. The second wear-resistant anti-slip ring 13, the second positioning post 16 and the second retaining ring 17 are integrally molded.

[0017] The locking ring 11 has a first annular groove on its outer side, and a first insertion hole is evenly provided on the inner side wall of the first annular groove. A first annular groove is provided on the inner side wall of the first insertion hole. The inner side wall of the first wear-resistant anti-slip ring 12 is located in the first annular groove. The first positioning post 14 is inserted into the first insertion hole. The first retaining ring 15 is engaged in the first annular groove. The locking ring 11 has a second annular groove on its inner side wall, and a second insertion hole is evenly provided on the inner side wall of the second annular groove. A second annular groove is provided on the inner side wall of the first insertion hole. The outer side wall of the second wear-resistant anti-slip ring 13 is located in the first annular groove. The second positioning post 16 is inserted into the first insertion hole. The second retaining ring 17 is engaged in the first annular groove.

[0018] Working principle: The first wear-resistant anti-slip ring 12 is fitted into the first annular groove on the outer side of the locking ring 11, and the first positioning pin 14 is inserted into the first insertion hole, and the first retaining ring 15 is engaged in the first annular groove, thereby fixing the first wear-resistant anti-slip ring 12 in the first annular groove of the locking ring 11. Similarly, the second wear-resistant anti-slip ring 13 is installed in the second annular groove on the inner side of the locking ring 11, and the second positioning pin 16 is inserted into the first insertion hole, and the second retaining ring 17 is engaged in the second annular groove, thereby fixing the second wear-resistant anti-slip ring 13 in the second annular groove of the locking ring 11. When the threaded sleeve 1 is screwed into the screw on the external object... When the threaded hole is in the threaded hole, the outer wall of the first wear-resistant anti-slip ring 12 will fit tightly with the threaded hole on the external object. At the same time, when the external bolt is screwed into the threaded inner wall of the threaded sleeve 1, the inner wall of the second wear-resistant anti-slip ring 13 will fit tightly with the thread on the external bolt. This increases the friction between the threaded sleeve 1 and the external object and the external bolt, thereby improving the locking performance of the threaded sleeve 1. Since the first wear-resistant anti-slip ring 12 and the second wear-resistant anti-slip ring 13 are fixed to the outer and inner sides of the locking ring 11 by the first retaining ring 15 and the second retaining ring 17, the first wear-resistant anti-slip ring 12 and the second wear-resistant anti-slip ring 13 can be directly removed and replaced.

Claims

1. A locking type wear-resistant threaded insert, characterized in that, The device includes a threaded sleeve (1), and a set of locking rings (11) are provided on both the upper and lower sides of the threaded sleeve (1). A first wear-resistant anti-slip ring (12) is placed on the outer side of the locking ring (11), and a second wear-resistant anti-slip ring (13) is placed on the inner side wall of the locking ring (11). A first positioning post (14) is evenly arranged on the inner side wall of the first wear-resistant anti-slip ring (12). A first retaining ring (15) is fixedly sleeved on the outer side of the first positioning post (14). A second positioning post (16) is evenly arranged on the outer side wall of the second wear-resistant anti-slip ring (13). A second retaining ring (17) is fixedly sleeved on the outer side of the second positioning post (16). The first positioning post (14) and the second positioning post (16) are both inserted into the locking ring (11), and the first retaining ring (15) and the second retaining ring (17) are both snapped into the locking ring (11).

2. The locking type wear-resistant threaded insert according to claim 1, characterized in that: The threaded sleeve (1) and the two sets of locking rings (11) are all integrally molded. The first wear-resistant anti-slip ring (12), the first positioning post (14) and the first retaining ring (15) are integrally molded. The second wear-resistant anti-slip ring (13), the second positioning post (16) and the second retaining ring (17) are integrally molded.

3. The locking type wear-resistant threaded insert according to claim 1, characterized in that: The locking ring (11) has a first annular groove on its outer side, and a first insertion hole is evenly provided on the inner side wall of the first annular groove. The first insertion hole has a first annular slot on its inner side wall.

4. A locking type wear-resistant threaded insert according to claim 3, characterized in that: The inner wall of the first wear-resistant anti-slip ring (12) is set in the first annular groove, the first positioning post (14) is inserted into the first insertion hole, and the first retaining ring (15) is engaged in the first annular groove.

5. A locking type wear-resistant threaded insert according to claim 3, characterized in that: The inner wall of the locking ring (11) is provided with a second annular groove, the inner wall of the second annular groove is provided with a second insertion hole, and the inner wall of the first insertion hole is provided with a second annular slot.

6. A locking type wear-resistant threaded insert according to claim 5, characterized in that: The outer wall of the second wear-resistant anti-slip ring (13) is set in the first annular groove, the second positioning post (16) is inserted into the first insertion hole, and the second retaining ring (17) is engaged in the first annular groove.

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