Locking type steel wire thread insert

Abstract

The utility model discloses a locking type steel wire thread insert, which belongs to the technical field of steel wire thread inserts and comprises a main body, internal threads are formed on the inner side of the main body, external threads are formed on the outer side of the main body, a mounting hole penetrating to the bottom of the main body is formed in the upper portion of the main body in the vertical direction, and an inner rotating rod is fittingly mounted in the mounting hole. An oil conveying pipeline is drilled in the inner rotating rod in the vertical direction, a plurality of oil outlets are formed in the outer wall of one side of the oil conveying pipeline, a plurality of rubber plugs are fixedly bonded to the outer wall of the other side of the oil conveying pipeline, and the oil outlets are distributed at equal intervals in the vertical direction. According to the locking type steel wire thread insert, the micro knob is rotated to drive the inner rotating rod to rotate, the position of the plugging block is rotationally adjusted, the plugging block is moved to the inner oil discharge port or the outer oil discharge port to seal the inner oil discharge port or the outer oil discharge port, and then the oil outlet position of lubricating oil can be adjusted, so that oil is injected to the inner thread position or the outer thread position of the main body in a targeted mode, and different requirements are met; and the application range is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire screw inserts, and particularly relates to a locking wire screw insert. Background Art

[0002] Locking wire thread insert is a new type of internal thread fastener, suitable for threaded connection, screwed into and fastened in the threaded hole of one of the connected parts to form a standard internal thread, and the bolt (or screw) is then screwed into it, also known as threaded wire insert, or simply wire insert. Locking wire thread insert is a spring-shaped internal and external thread concentric body made of high-strength, high-precision, smooth-surfaced cold-rolled diamond stainless steel wire, mainly used to enhance and protect the internal thread of low-strength material.

[0003] In the process of realizing the utility model, the inventors found that there are at least the following problems in this technology: the oil outlet or oil outlet pipe of the existing locking wire screw sleeve for adding lubricating oil is mostly not adjustable, resulting in that the lubricating oil can only be added to the specified position (internal thread or external thread), and the oil outlet position cannot be adjusted as needed, resulting in a small scope of application.

[0004] Therefore, we propose a locking wire screw sleeve to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a locking wire thread insert, which can be used to specifically inject oil into the internal thread or external thread of the main body to meet different needs, improve the scope of application, and effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A locking wire screw sleeve comprises a main body, an internal thread is formed on the inner side of the main body, an external thread is formed on the outer side of the main body, a mounting hole is formed on the upper side of the main body and penetrates to the bottom thereof in the vertical direction, an inner rotating rod is fitted in the mounting hole, an oil pipeline is drilled in the inner rotating rod in the vertical direction, a plurality of oil outlets are formed on the outer wall on one side of the oil pipeline, a plurality of rubber plugs are fixedly bonded to the outer wall on the other side of the oil pipeline, and the plurality of oil outlets are evenly spaced along the vertical direction.

[0008] As a preferred embodiment, the inner rotating rod fits the inner wall of the mounting hole, and there is sliding friction between the inner rotating rod and the inner wall of the mounting hole, so that the inner rotating rod can rotate slowly in the mounting hole.

[0009] As a preferred embodiment, the openings of the multiple oil outlets are all located at the inward contraction of the internal thread, so that the oil outlets can add lubricating oil to the inner edge of the internal thread and achieve lubrication.

[0010] As a preferred embodiment, multiple rubber plugs are evenly spaced along the vertical direction, and the rubber plugs protrude from the mounting hole toward the outside of the main body; so that the rubber plugs can better seal the mounting hole. At the same time, the rubber plugs are made of soft material, so that the rubber plugs can shrink into the mounting hole as the inner rotating rod rotates, thereby playing a good sealing role.

[0011] As a preferred embodiment, an extension seat is welded to the top wall of the inner rotating rod, wherein the extension seat protrudes from the top of the main body, and the opening at the top of the oil pipeline passes through the extension seat and is located on the top wall of the extension seat; thereby, lubricating oil can be added through the opening at the top of the extension seat.

[0012] As a preferred embodiment, a knob is welded on the outer wall of the extension seat, so as to facilitate hand holding.

[0013] In summary, the technical effects and advantages of the utility model are as follows:

[0014] The locking wire screw sleeve drives the inner rotating rod to operate by turning the micro knob, and the position of the sealing block is rotated to adjust the sealing block so that the sealing block is moved to the inner oil discharge port or the outer oil discharge port to seal it, thereby adjusting the oil outlet position of the lubricating oil, thereby specifically injecting oil into the inner thread or the outer thread of the main body, meeting different needs and improving the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of one side of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the other side of the utility model;

[0017] Figure 3 It is a cross-sectional view of the utility model;

[0018] Figure 4 For this utility model Figure 3 A magnified view of the structure in the middle.

[0019] In the figure: 1. main body; 2. internal thread; 3. external thread; 4. internal rotating rod; 5. extension seat; 6. knob; 7. oil pipeline; 8. oil outlet; 9. rubber plug. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 4A locking wire thread insert comprises a main body 1, an internal thread 2 is formed on the inner side of the main body 1, and an external thread 3 is formed on the outer side of the main body 1;

[0022] A mounting hole is formed vertically above the main body 1 and extends to the bottom thereof. An inner rotating rod 4 is fitted in the mounting hole. The inner rotating rod 4 fits the inner wall of the mounting hole, and there is sliding friction between the inner rotating rod 4 and the inner wall of the mounting hole, so that the inner rotating rod 4 can rotate slowly in the mounting hole. An oil pipeline 7 is drilled vertically inside the inner rotating rod 4. A plurality of oil outlets 8 are provided on the outer wall of one side of the oil pipeline 7. The openings of the plurality of oil outlets 8 are all located at the inward contraction of the internal thread 2, so that the oil outlet 8 can add lubricating oil to the inner edge of the internal thread 2 and achieve lubrication.

[0023] A plurality of rubber plugs 9 are fixedly bonded to the outer wall of the other side of the oil pipeline 7, wherein the plurality of oil outlets 8 are evenly spaced in the vertical direction, and the plurality of rubber plugs 9 are evenly spaced in the vertical direction, and the rubber plugs 9 protrude from the mounting hole toward the outside of the main body 1, so that the rubber plugs 9 can better seal the mounting hole, and at the same time, the rubber plugs 9 are made of soft material, so that the rubber plugs 9 can be retracted into the mounting hole as the inner rotating rod 4 rotates, thereby playing a good sealing role;

[0024] An extension seat 5 is welded to the top wall of the inner rotating rod 4, wherein the extension seat 5 protrudes from the top of the main body 1, and the opening at the top of the oil pipeline 7 passes through the extension seat 5 and is located on the top wall of the extension seat 5, so that lubricating oil can be added through the opening at the top of the extension seat 5, and a knob 6 is welded to the outer wall of the extension seat 5 to facilitate hand holding.

[0025] The locking wire screw sleeve: when in use, lubricating oil is added through the opening of the oil pipeline 7 on the top of the extension seat 5, the lubricating oil enters the oil pipeline 7 and continuously slides downward and is discharged from multiple oil outlets 8 respectively. When the multiple oil outlets 8 are located on the inner side of the internal thread 2, the lubricating oil enters different positions of the inner edge of the internal thread 2, thereby lubricating different positions in the internal thread 2. If lubrication is required at the location of the external thread 3, the knob 6 can be held and the internal rotating rod 4 and the extension seat 5 can be slowly rotated 180° in total, so that the multiple rubber plugs 9 are retracted into the mounting hole and rotated 180° along with the internal rotating rod 4, so that the multiple rubber plugs 9 enter the internal thread 2. At this time, the multiple oil outlets 8 are located on the external thread 3, so that the lubricating oil can be added to the location of the external thread 3 for lubrication.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A locking wire thread insert, comprising a main body (1), characterized in that: An internal thread (2) is formed on the inner side of the main body (1), and an external thread (3) is formed on the outer side of the main body (1). A mounting hole is formed on the upper side of the main body (1) along the vertical direction and extends through the bottom thereof. An inner rotating rod (4) is fitted in the mounting hole. An oil pipeline (7) is drilled in the inner rotating rod (4) along the vertical direction. A plurality of oil outlets (8) are formed on the outer wall of one side of the oil pipeline (7). A plurality of rubber plugs (9) are fixedly bonded to the outer wall of the other side of the oil pipeline (7), wherein the plurality of oil outlets (8) are evenly spaced in the vertical direction.

2. A locking wire thread insert according to claim 1, characterized in that: The inner rotating rod (4) is fitted with the inner wall of the mounting hole, and there is sliding friction between the inner rotating rod (4) and the inner wall of the mounting hole.

3. A locking wire thread insert according to claim 1, characterized in that: The openings of the plurality of oil outlets (8) are all located at the inwardly contracted portion of the internal thread (2).

4. A locking wire thread insert according to claim 1, characterized in that: The plurality of rubber plugs (9) are distributed at equal intervals in the vertical direction, and the rubber plugs (9) protrude from the mounting hole toward the outside of the main body (1).

5. A locking wire thread insert according to claim 1, characterized in that: An extension seat (5) is welded to the top wall of the inner rotating rod (4), wherein the extension seat (5) protrudes from the top of the main body (1), and the opening at the top of the oil pipeline (7) passes through the extension seat (5) and is located on the top wall of the extension seat (5).

6. A locking wire thread insert according to claim 5, characterized in that: A knob (6) is welded to the outer wall of the extension seat (5).

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