Locking type steel wire sleeve installation tool

By setting a locking ring mating groove and a snap-fit ​​groove in the locking type wire thread insert installation tool, and equipping it with a drive connecting rod and a positioning rod, the problems of hole damage and high difficulty in the installation process of locking type wire thread inserts are solved, and efficient and automated installation is achieved.

CN224488977UActive Publication Date: 2026-07-14XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD
Filing Date
2025-06-24
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing locking wire thread insert installation tools are prone to damaging the external structure of the hole during installation, and are difficult and inefficient to install, failing to meet actual needs.

Method used

A locking type wire thread insert installation tool was designed, including an installation rod, a first threaded section and a second threaded section, a locking ring mating groove, a snap-fit ​​groove on the mating threaded section, and a drive connecting rod and a positioning rod, so as to realize the initial state maintenance and automatic installation of the locking ring.

Benefits of technology

It effectively avoids damage to the holes caused by the locking ring, improves installation accuracy and reliability, reduces installation difficulty, and achieves efficient and automated installation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to steel wire sleeve installation technical field, concretely relates to a locking type steel wire sleeve installation tool, including installation pole, first threaded section and second threaded section, first threaded section and second threaded section coaxial arrangement, and first threaded section and second threaded section are set in the outside of installation pole, and first threaded section and second threaded section are provided with locking ring cooperation groove, through reserving locking ring cooperation groove between first threaded section and second threaded section, one side when installing locking type steel wire sleeve, make locking ring on locking type steel wire sleeve extend to locking ring cooperation groove, guarantee locking ring to be in initial state, to avoid locking type steel wire sleeve and hole position installation locking ring to expand outside and cause damage hole position external structure, the other side locking type steel wire sleeve installs to complete, and installation pole exits when, and second threaded section extrudes locking ring expansion, and realize primary cooperation with hole position, improve locking type steel wire sleeve and hole position installation's reliability, satisfy installation demand.
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Description

Technical Field

[0001] This utility model relates to the field of wire thread insert installation technology, specifically to a locking type wire thread insert installation tool. Background Technology

[0002] To improve the strength and reusability of the threaded holes in aluminum alloy housings, some aluminum alloy housings require the installation of wire thread inserts. To enhance the anti-loosening capability of the threaded holes, it is preferable to use tailed locking wire thread inserts.

[0003] For example, Chinese utility model patent with publication number CN208919030U provides an easy-to-install wire thread insert. By adding a locking ring to a regular wire thread insert, the locking type wire thread insert expands outward and engages with the external structure when installed on an aluminum alloy housing, thereby improving its reliability.

[0004] Currently, the installation of wire thread inserts is usually done manually. After connecting the wire thread insert with a wire thread insert installation tool, it is then screwed into the pre-drilled hole by rotation. For example, Chinese utility model patent application number CN211333040U provides a wire thread insert installation tool, which has an external thread end on the installation rod that mates with the internal thread of the wire thread insert, and a protrusion on the end face of the external thread end for mates with the installation handle of the wire thread insert, so that the installation can be completed by rotating the installation rod.

[0005] However, because the locking wire thread insert has a locking ring, when the existing mounting rod is fitted with the locking wire thread insert, it will squeeze the locking ring outward to make it larger than the corresponding hole diameter. This will cause interference between the locking wire thread insert and the hole, which will not only easily damage the outer shell of the hole, but also affect the installation accuracy. This will increase the difficulty of installing the locking wire thread insert, reduce efficiency, and fail to meet the actual installation requirements. Utility Model Content

[0006] The purpose of this utility model is to provide a locking type wire thread insert installation tool to solve the technical problem of inconvenient installation of current tightening type wire thread inserts.

[0007] The solution of this utility model to the above-mentioned technical problems is as follows:

[0008] A locking type wire thread insert installation tool includes an installation rod, a first threaded section and a second threaded section, the first threaded section and the second threaded section are coaxially arranged, the first threaded section and the second threaded section are sleeved on the outside of the installation rod, and the first threaded section and the second threaded section are provided with locking ring mating grooves.

[0009] Furthermore, the width of the locking ring groove is equal to twice the pitch of the first threaded section, and the pitch of the first threaded section is the same as the pitch of the second threaded section.

[0010] Further specified, the bottom of the second threaded section is provided with a mating threaded section, the mating threaded section is coaxially arranged with the second threaded section, the mating threaded section is sleeved on the outside of the mounting rod, and the mating threaded section is provided with a snap-fit ​​groove.

[0011] Furthermore, the angle between the side end face of the snap-fit ​​groove and the axis of the mounting rod is 10°~15°.

[0012] Furthermore, the mounting rod, the first threaded section, the second threaded section, and the mating threaded section are all integral structures.

[0013] Further, the bottom of the mating threaded section is provided with a countersunk hole, which extends into the interior of the second threaded section.

[0014] Furthermore, the locking type wire thread insert installation tool also includes a drive connecting rod, the bottom end of which is connected to the top end of the installation rod, and the drive connecting rod has a regular polygonal prism structure.

[0015] Furthermore, the drive connecting rod is provided with a ball bearing retaining groove, which is located near the top of the drive connecting rod.

[0016] Furthermore, the locking type wire thread insert installation tool also includes a positioning rod, which is connected between the drive connecting rod and the installation rod.

[0017] Furthermore, the positioning rod is a cylindrical structure, and the mounting rod, positioning rod, and drive connecting rod are an integral structure.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This utility model, by reserving a locking ring mating groove between the first threaded section and the second threaded section, ensures that, during the installation of the locking wire thread insert, the locking ring on the locking wire thread insert extends into the locking ring mating groove, guaranteeing that the locking ring is in its initial state. This prevents the locking ring from expanding outwards during installation of the locking wire thread insert with the hole, thus avoiding damage to the external structure of the hole. Furthermore, after the locking wire thread insert is installed, when the installation rod is withdrawn, the second threaded section squeezes the locking ring outwards, achieving initial mating with the hole, thus improving the reliability of the installation of the locking wire thread insert with the hole and meeting installation requirements.

[0020] 2. This utility model features a mating threaded section at the bottom of the second threaded end, with a snap-fit ​​groove on the mating threaded section. This facilitates the snap-fit ​​between the mounting rod and the mounting handle of the locking wire threaded sleeve, making installation convenient. Simultaneously, the threaded structure at the bottom of the second threaded end allows the mounting handle to engage with the snap-fit ​​groove by rotating the locking wire threaded sleeve, improving work efficiency. Furthermore, by tilting the side end face of the snap-fit ​​groove, the mounting handle can contact the side end face of the snap-fit ​​groove to achieve snap-fit, ensuring a reliable connection between the locking wire threaded sleeve and the mounting rod.

[0021] 3. This utility model, by setting a drive connecting rod and a positioning rod on the mounting rod, facilitates the automatic installation of locking wire thread sleeves through connection and positioning with the drive equipment, thereby further improving work efficiency. Attached Figure Description

[0022] Figure 1 This is a front view of the locking type wire thread insert installation tool provided in Embodiment 1 of this utility model;

[0023] Figure 2 This is a bottom view of the locking type wire thread sleeve installation tool provided in Embodiment 2 of this utility model;

[0024] Figure 3 This is a front view of the locking type wire thread insert installation tool provided in Embodiment 2 of this utility model;

[0025] Figure 4 A perspective view of the locking type wire thread sleeve installation tool provided in Embodiment 2 of this utility model;

[0026] In the diagram, 10-mounting rod; 11-positioning rod; 12-drive connecting rod; 13-ball bearing retaining groove; 14-counterhead; 20-first threaded section; 30-second threaded section; 31-mating threaded section; 32-retaining groove; 40-locking ring groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Example 1

[0032] refer to Figure 1 This utility model provides a locking type wire thread sleeve installation tool, including an installation rod (10), a first threaded section (20) and a second threaded section (30). The first threaded section (20) and the second threaded section (30) are coaxially arranged. The first threaded section (20) and the second threaded section (30) are sleeved on the outside of the installation rod (10). The first threaded section (20) and the second threaded section (30) are provided with locking ring mating grooves (40).

[0033] Specifically, taking the example of the first threaded section 20 being located above the second threaded section 30, a gap is reserved between the first threaded section (20) and the second threaded section (30), namely the locking ring mating groove (40). The purpose is to ensure that when the locking wire thread insert is fitted outside the first threaded section 20 and the second threaded end 30, the locking ring of the locking wire thread insert extends into the locking ring mating groove (40), thereby preventing the thread from squeezing the locking ring outward during installation. This ensures that the locking ring is in its initial state during installation, reducing damage to the external structure of the hole during installation, improving actual installation efficiency, and ensuring stable and reliable installation.

[0034] For the same locking type wire thread insert, the internal pitch is consistent. Therefore, the pitch of the first thread segment (20) and the pitch of the second thread segment (30) are the same. The outer diameter of the locking ring mating groove (40) is smaller than the inner diameter of the first thread segment (20). The depth and width of the locking ring mating groove (40) can be determined according to the thickness and inner diameter of the locking ring to ensure that the locking ring is in the initial state when it mates with the locking ring mating groove (40). For example, if there is only one locking ring, the width of the locking ring mating groove (40) is equal to twice the pitch of the first thread segment (20).

[0035] To further explain, when installing the locking wire thread insert, the rotating rod 10 is required to drive the locking wire thread insert to rotate so that it fits with the inside of the hole. Therefore, a mating thread section (31) is provided at the bottom of the second thread section (30). The mating thread section (31) is coaxially arranged with the second thread section (30). The mating thread section (31) is sleeved on the outside of the mounting rod (10). The mating thread section (31) is provided with a snap-fit ​​groove (32) for matching with the mounting handle on the locking wire thread insert, so as to realize the installation of the locking wire thread insert.

[0036] Specifically, by opening a snap-fit ​​groove 32 on the mating thread section (31) to allow the mounting handle to engage with it, the rotating rod 10 can rotate through the mounting handle to drive the locking wire thread sleeve to rotate, thus completing the installation.

[0037] Meanwhile, after installation, when the mounting rod 10 is rotated in the reverse direction to retract, the second threaded section 30 retracts and squeezes the locking ring. At this time, the locking ring squeezes the hole to achieve a fit with the hole, further improving the installation reliability of the locking wire thread insert.

[0038] Specifically, by providing a mating thread section 31 at the bottom of the second threaded end 30, the mating thread section 31 can fully engage with the bottom of the locking wire thread insert, ensuring the coaxial connection between the locking wire thread insert and the mounting rod 10, thereby improving installation accuracy and reliability. At the same time, by rotating the locking wire thread insert, the mounting shank can slide along the mating thread section 31 until the mounting shank matches the locking groove 32, improving the installation efficiency of the locking wire thread insert and the mounting rod 10, reducing installation difficulty, and increasing work efficiency.

[0039] The number of turns of the mating thread section 31 is preferably one turn. The mounting rod (10), the first thread section (20), the second thread section (30) and the mating thread section (31) are all integral structures, which facilitates production and improves the overall structural reliability.

[0040] For example, after selecting the threaded section on the mounting rod (10), a locking ring mating groove (40) is opened at the corresponding position of the threaded section, dividing the threaded section into the first threaded section (20) and the third threaded section. Then, a turn of reverse spiral is cut off at the bottom of the third threaded section, with the tangent line being the line connecting the center of the last thread tooth crest. The cut surface is guaranteed to be smooth. At this time, the third threaded section includes the second threaded section (30) and the mating threaded section 31. Subsequently, a snap-fit ​​mating groove (32) is opened at the end of the mating threaded section 31. At this time, the snap-fit ​​mating groove (32) is located at the bottom of the second threaded section (30), and the processing is completed.

[0041] Further reference Figure 2 In order to ensure a reliable fit between the mounting handle and the bottom of the mounting rod 10, it is preferable to open a countersunk hole 14 at the bottom of the mounting rod 10. The countersunk hole 14 extends upward from the bottom of the mating thread section 31 to the inside of the second thread section (30) to avoid interference when the bottom of the mounting rod 10 fits with the mounting handle.

[0042] Preferably, to prevent the locking wire thread sleeve from slipping and loosening when the mounting rod 10 is set vertically during installation, the angle between the side end face of the locking groove (32) and the axis of the mounting rod 10 is preferably 10°~15°. Taking 10° as an example, by tilting the side end face of the locking groove (32), when the mounting handle contacts the corresponding side end face, it prevents the locking wire thread sleeve from sliding downward, thereby limiting the locking wire thread sleeve. At the same time, it facilitates the separation of the locking wire thread sleeve from the mounting rod 10. The processing is simple and the operation is convenient.

[0043] Example 2

[0044] refer to Figure 3 and Figure 4 Based on the locking type wire thread insert installation tool provided in Embodiment 1, this embodiment provides a locking type wire thread insert installation tool, which also includes a drive connecting rod (12). The bottom end of the drive connecting rod (12) is connected to the top end of the installation rod (10). The drive connecting rod (12) is a regular polygonal prism structure.

[0045] In use, the drive connecting rod 12 is used in conjunction with the existing automatic wire thread insert installation device, thereby using the drive connecting rod 12 to drive the rotating rod 10 to rotate in both directions, realizing the automatic installation of the locking wire thread insert and further improving the installation efficiency. In order to facilitate the stable clamping of the drive connecting rod 12, the drive connecting rod 12 is preferably a regular polygonal prism structure, such as a triangular prism, cuboid, or hexagonal prism. At the same time, a ball bearing retaining groove 13 can be opened on the top of the drive connecting rod 12 to facilitate the automatic wire thread insert installation device to engage and disengage the locking wire thread insert installation tool.

[0046] Furthermore, the locking type wire thread insert installation tool also includes a positioning rod (11), which is connected between the drive connecting rod (12) and the installation rod (10). By fitting a positioning sleeve on the outside of the positioning rod (11), the coaxiality of the locking type wire thread insert installation tool and the hole can be guaranteed when the automatic wire thread insert installation device is working, thus ensuring the installation accuracy.

[0047] Preferably, the positioning rod (11) is a cylindrical structure, and the mounting rod (10), positioning rod (11) and drive connecting rod (12) are an integral structure, which reduces the processing difficulty and improves the overall structural performance.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications made to the technical solutions based on the technical concept proposed by this utility model shall fall within the scope of protection of the claims of this utility model.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A locking type wire thread insert installation tool, characterized in that, It includes an installation rod (10), a first threaded section (20) and a second threaded section (30). The first threaded section (20) and the second threaded section (30) are coaxially arranged. The first threaded section (20) and the second threaded section (30) are sleeved on the outside of the installation rod (10). The first threaded section (20) and the second threaded section (30) are provided with locking ring mating grooves (40).

2. The locking type wire thread insert installation tool according to claim 1, characterized in that, The width of the locking ring mating groove (40) is equal to twice the pitch of the first threaded section (20), and the pitch of the first threaded section (20) is the same as the pitch of the second threaded section (30).

3. The locking type wire thread insert installation tool according to claim 1, characterized in that, The bottom of the second threaded section (30) is provided with a mating threaded section (31), which is coaxially arranged with the second threaded section (30). The mating threaded section (31) is sleeved on the outside of the mounting rod (10), and a snap-fit ​​groove (32) is provided on the mating threaded section (31).

4. The locking type wire thread insert installation tool according to claim 3, characterized in that, The angle between the side end face of the snap-fit ​​groove (32) and the axis of the mounting rod (10) is 10°~15°.

5. The locking type wire thread insert installation tool according to claim 4, characterized in that, The mounting rod (10), the first threaded section (20), the second threaded section (30), and the mating threaded section (31) are all integral structures.

6. The locking type wire thread insert installation tool according to any one of claims 3 to 5, characterized in that, The bottom of the mating threaded section (31) is provided with a countersunk hole (14), which extends into the interior of the second threaded section (30).

7. The locking type wire thread insert installation tool according to claim 6, characterized in that, The locking type wire thread sleeve installation tool also includes a drive connecting rod (12), the bottom end of which is connected to the top end of the installation rod (10), and the drive connecting rod (12) is a regular polygonal prism structure.

8. The locking type wire thread insert installation tool according to claim 7, characterized in that, The drive connecting rod (12) is provided with a ball bearing groove (13), which is located near the top of the drive connecting rod (12).

9. The locking type wire thread insert installation tool according to claim 7, characterized in that, The locking type wire threaded sleeve installation tool also includes a positioning rod (11), which is connected between the drive connecting rod (12) and the installation rod (10).

10. The locking type wire thread insert installation tool according to claim 9, characterized in that, The positioning rod (11) is a cylindrical structure, and the mounting rod (10), positioning rod (11) and drive connecting rod (12) are an integral structure.