Self-locking threaded sleeve

Abstract

The utility model discloses a self-locking type thread sleeve, which relates to the technical field of thread sleeves and comprises a thread sleeve body, the thread sleeve body is divided into two sections, the lower section is a thread sleeve with the spiral line diameter consistent, the upper section is a thread sleeve with the spiral line diameter increasing according to a linear rule, and a mounting groove is formed in the thread sleeve body. A thread insert mounting tool is movably sleeved with the thread insert body, a positioning structure is mounted in the thread insert mounting tool, and a handle structure is mounted on the upper wall surface of the thread insert mounting tool; the swivel nut installation tool comprises a swivel nut installation column and an installation block. By improving the steel wire thread insert, the steel wire thread insert can be directly installed in the threaded through hole in cooperation with a corresponding tool, secondary machining of the steel wire thread insert is avoided, meanwhile, it can be ensured that the steel wire thread insert is fixed when the bolt is disassembled through the barbs, and secondary installation of the steel wire thread insert can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of screw sleeves, in particular to a self-locking screw sleeve. Background Art

[0002] 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 is then screwed into it. It is also called threaded wire insert, or wire insert for short. It 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 materials. Wire thread inserts are embedded in threaded holes of low-strength engineering materials such as aluminum, magnesium alloy, cast iron, fiberglass, and plastic.

[0003] Traditional wire thread inserts can only be installed inside threaded blind holes and cannot be directly installed inside threaded through holes. The wire thread inserts need to be shortened twice so that they can be applied to the inside of threaded through holes. In addition, after the current wire thread inserts are installed, the corresponding bolts are also installed into the wire thread inserts. If the bolts are removed again, the wire thread inserts may be brought out, so the wire thread inserts need to be installed twice. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and propose a self-locking screw sleeve. The utility model improves the wire screw sleeve and can directly install the wire screw sleeve into the inside of the threaded through hole with the corresponding tool, avoiding the need for secondary processing of the wire screw sleeve. At the same time, the utility model can ensure that the wire screw sleeve does not move when the bolt is disassembled through the barbs, avoiding the need for secondary installation of the wire screw sleeve.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A self-locking screw sleeve comprises: a screw sleeve body, the screw sleeve body is divided into two sections, the lower section is a screw sleeve with a consistent spiral diameter, and the upper section is a screw sleeve with a spiral diameter that increases in a linear pattern, the screw sleeve body is provided with a mounting groove inside, a screw sleeve installation tool is movably mounted inside the screw sleeve body, a positioning structure is installed inside the screw sleeve installation tool, and a handle structure is installed on the upper wall of the screw sleeve installation tool; the screw sleeve installation tool comprises: a screw sleeve installation column and a mounting block; the screw sleeve installation column is movably mounted inside the screw sleeve body, a slideway is provided on the side wall of the screw sleeve installation column, and the mounting block is movably mounted on the slideway of the screw sleeve installation column and inside the mounting groove of the screw sleeve body.

[0007] The utility model is further configured such that the positioning structure comprises: a positioning push rod and a positioning handle; the positioning push rod is movably mounted inside a slideway of a screw sleeve mounting column, and the positioning handle is mounted on an upper wall surface of the positioning push rod.

[0008] The utility model is further configured that the handle structure comprises: a handle connecting rod and a movable handle; the handle connecting rod is installed on the upper wall surface of the screw sleeve mounting column, and the movable handle is installed on the upper wall surface of the handle connecting rod.

[0009] The utility model is further configured that an inclined seat is installed inside the slideway of the screw sleeve installation column.

[0010] The utility model is further configured that the positioning ejector rod is provided with a matching bevel.

[0011] The utility model is further configured such that the axes of the handle connecting rod and the screw sleeve installation column coincide with each other.

[0012] The utility model is further configured that a plurality of barbs are installed outside the upper section of the screw sleeve body.

[0013] The beneficial effects of the utility model are as follows: the utility model improves the wire thread sleeve, and can cooperate with corresponding tools to directly install the wire thread sleeve into the interior of the threaded through hole, avoiding the need for secondary processing of the wire thread sleeve. At the same time, the utility model can ensure that the wire thread sleeve does not move when the bolt is disassembled through the barbs, which can avoid the need for secondary installation of the wire thread sleeve.

[0014] 1. The self-locking screw sleeve is provided with a screw sleeve installation tool, so that the screw sleeve body can be installed inside the threaded through hole. Therefore, traditional tools cannot install the screw sleeve body. The screw sleeve installation tool is convenient for rotating the screw sleeve body, thereby completing the installation of the screw sleeve body.

[0015] 2. The self-locking screw sleeve is provided with a positioning structure, which can relatively fix the screw sleeve body and the screw sleeve installation tool, so that when the operator rotates the screw sleeve installation tool, the screw sleeve body is driven to rotate together.

[0016] 3. The self-locking screw sleeve is provided with a handle structure, and the handle structure is coaxially installed with the screw sleeve installation tool, so that the screw sleeve installation tool can be rotated, thereby facilitating the installation of the screw sleeve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall external structure of a self-locking screw sleeve proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the overall internal structure of a self-locking screw sleeve proposed by the utility model;

[0019] Figure 3 It is an exploded schematic diagram of the internal partial structure of a self-locking screw sleeve proposed by the utility model;

[0020] Figure 4 The utility model is a schematic diagram of a screw sleeve body of a self-locking screw sleeve.

[0021] In the figure: 1. Screw sleeve body; 2. Mounting groove; 3. Screw sleeve mounting column; 4. Mounting block; 5. Positioning push rod; 6. Positioning handle; 7. Handle connecting rod; 8. Movable handle; 9. Slant seat; 10. Barb. DETAILED DESCRIPTION

[0022] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0025] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0026] Reference Figure 1-4A self-locking screw sleeve comprises: a screw sleeve body 1, the screw sleeve body 1 is divided into two sections, the lower section is a screw sleeve with a consistent spiral diameter, and the upper section is a screw sleeve with a spiral diameter that increases in a linear law. The interior of the lower section screw sleeve body 1 is provided with a mounting groove 2, and the interior of the screw sleeve body 1 is movably sleeved with a screw sleeve installation tool, and a positioning structure is installed inside the screw sleeve installation tool, and a handle structure is installed on the upper wall surface of the screw sleeve installation tool; the screw sleeve installation tool comprises: a screw sleeve installation column 3 and a mounting block 4; the screw sleeve installation column 3 is movably sleeved inside the screw sleeve body 1, and a slideway is provided on the side wall surface of the screw sleeve installation column 3, and the mounting block 4 is movably installed on the slideway of the screw sleeve installation column 3 and the interior of the mounting groove 2 of the screw sleeve body 1, and a plurality of barbs 10 are installed on the outside of the upper section of the screw sleeve body 1, so that the screw sleeve body 1 can be installed inside the threaded through hole, so traditional tools cannot install the screw sleeve body 1, and the screw sleeve installation tool is convenient for rotating the screw sleeve body 1, thereby completing the installation of the screw sleeve body 1.

[0027] Specifically, the positioning structure includes: a positioning push rod 5 and a positioning handle 6; the positioning push rod 5 is movably installed inside the slideway of the screw sleeve mounting column 3, the positioning handle 6 is installed on the upper wall surface of the positioning push rod 5, the positioning push rod 5 is provided with a matching bevel angle, and an inclined seat 9 is installed inside the slideway of the screw sleeve mounting column 3. The positioning structure can relatively fix the screw sleeve body 1 and the screw sleeve mounting tool, so that when the operator rotates the screw sleeve mounting tool, the screw sleeve body 1 is driven to rotate together.

[0028] Specifically, the handle structure includes: a handle connecting rod 7 and a movable handle 8; the handle connecting rod 7 is installed on the upper wall surface of the screw sleeve mounting column 3, and the movable handle 8 is installed on the upper wall surface of the handle connecting rod 7. The axis of the handle connecting rod 7 and the screw sleeve mounting column 3 coincide with each other. The handle structure is coaxially installed with the screw sleeve mounting tool, so that the screw sleeve mounting tool can be rotated, thereby facilitating the installation of the screw sleeve body 1.

[0029] Working principle: when installing the screw sleeve body 1, first, a conical countersunk hole needs to be punched on the upper part of the screw hole, and the shape should match the upper half of the screw sleeve body 1. First, the operator punches the screw sleeve body 1 into the interior of the hole. When the screw sleeve body 1 cannot rotate in the screw hole, the operator inserts the screw sleeve mounting column 3 into the interior of the screw sleeve body 1, and aligns the mounting groove 2 of the screw sleeve body 1 with the slideway of the screw sleeve mounting column 3. Then, the operator inserts the mounting block 4 into the slideway of the screw sleeve mounting column 3, and then inserts the positioning push rod 5 into the slideway of the screw sleeve mounting column 3 until the mounting block 4 falls on the inclined seat 9. At this time, the mounting block 4 is located between the mounting groove 2 of the screw sleeve body 1 and the slideway of the screw sleeve mounting column 3. Then, the operator rotates the screw sleeve mounting column 3 through the movable handle 8. The rotation of the screw sleeve mounting column 3 drives the mounting block 4, that is, drives the screw sleeve body 1 to rotate, until the barb 10 on the screw sleeve body 1 is completely inserted into the conical countersunk hole, and the installation of the utility model is completed.

[0030] 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 self-locking screw sleeve, comprising: The screw sleeve body (1) is characterized in that the screw sleeve body (1) is divided into two sections, the lower section is a screw sleeve with a consistent spiral diameter, and the upper section is a screw sleeve with a spiral diameter that increases in a linear pattern, a mounting groove (2) is provided inside the screw sleeve body (1), a screw sleeve mounting tool is movably mounted inside the screw sleeve body (1), a positioning structure is mounted inside the screw sleeve mounting tool, and a handle structure is mounted on the upper wall of the screw sleeve mounting tool; The screw sleeve installation tool comprises: a screw sleeve installation column (3) and a installation block (4); The screw sleeve installation column (3) is movably mounted inside the screw sleeve body (1); a slideway is provided on the side wall of the screw sleeve installation column (3); and the installation block (4) is movably mounted inside the slideway of the screw sleeve installation column (3) and the installation groove (2) of the screw sleeve body (1).

2. A self-locking screw insert according to claim 1, characterized in that: The positioning structure comprises: a positioning push rod (5) and a positioning handle (6); The positioning push rod (5) is movably mounted inside the slideway of the screw sleeve mounting column (3), and the positioning handle (6) is mounted on the upper wall surface of the positioning push rod (5).

3. A self-locking screw insert according to claim 1, characterized in that: The handle structure comprises: a handle connecting rod (7) and a movable handle (8); The handle connecting rod (7) is mounted on the upper wall surface of the screw sleeve mounting column (3), and the movable handle (8) is mounted on the upper wall surface of the handle connecting rod (7).

4. A self-locking screw insert according to claim 1, characterized in that: An inclined seat (9) is installed inside the slideway of the screw sleeve mounting column (3).

5. A self-locking screw insert according to claim 2, characterized in that: The positioning ejector rod (5) is provided with a matching bevel.

6. A self-locking screw insert according to claim 3, characterized in that: The axes of the handle connecting rod (7) and the screw sleeve mounting column (3) coincide with each other.

7. A self-locking screw insert according to claim 1, characterized in that: A plurality of barbs (10) are installed on the outside of the upper section of the screw sleeve body (1).

Images