CN210692772U - Connecting device for super-flexible low-voltage insulated wire for automobile - Google Patents

Abstract

The utility model discloses a connecting device for an ultra-flexible low-voltage insulated wire for automobiles, which comprises a cable body, a cable end fixing structure, a bevel nut, a cable fixing sleeve, a threaded hook, an anti-slip protrusion, a cable connecting structure, a double Threaded sleeves, thread cartridges, crimps, springs, shafts and clips. The beneficial effects of the utility model are: the utility model can realize the fixed connection of the flexible wires, and the threaded hook and the cable fixing sleeve are connected with pressure on the cable insulation layer through the bevel thread structure of the thread hook and the bevel nut, so that the The fixing sleeve is tightly fixed with the cable. Since the pressure point between the threaded hook and the insulating layer is arc-shaped, the stress-bearing surface of the insulating layer is increased, so that the wear rate of the insulating layer is slowed down, which protects the fixed part. The internal wire head card box ensures the conduction effect of the current and prevents the wire from contacting the fixed sleeve and leaking electricity during use.

Description

A connecting device for ultra-flexible low-voltage insulated wires for automobiles

technical field

The utility model relates to a connection device, in particular to a connection device of an ultra-flexible low-voltage insulated wire for automobiles, belonging to the technical field of wire connection devices.

Background technique

Cable connectors are used in a wide variety of applications and are a key product to ensure the correctness and reliability of current transmission. In the assembly process of cable connectors, in order to ensure product quality, several effective quality control measures should be taken in each link, and the selection, pretreatment, crimping or welding, testing and other processes of cable connectors should be strictly controlled. . If there is a problem with the quality of the assembly, such as: the ground wire is broken, the cable core wire and the core wire, the core wire and the electrical connector shell are short-circuited, and the electrical connector contact couple is not in good contact or termination. Affect the reliability of the product and the system.

However, the common wire connection device is usually directly fixed by extrusion of the annular metal fixing sleeve. This fixing method may cause damage to the wire insulation of the fixed part. At the same time, the flexibility of the flexible wire is relatively strong, which will further insulate the fixed part. The skin is damaged at an accelerated rate, and the wire connection is usually directly tightened to ensure the passage, which is troublesome to disassemble and wastes the metal wire at the same time.

Utility model content

The purpose of the present utility model is to provide a connection device for ultra-flexible low-voltage insulated wires for automobiles in order to solve the above problems, which is convenient for installation, has a good fixing effect on the flexible wires, and can ensure the flatness of the metal wire portion, which is convenient for re-installation. connect.

The utility model achieves the above objects through the following technical solutions. A connecting device for an ultra-flexible low-voltage insulated wire for automobiles includes a cable body, one end of the cable body is connected with a cable end fixing structure, and the cable end The fixing structure includes a bevel nut, a cable fixing sleeve, a threaded hook and an anti-slip protrusion, one end of the cable body is sleeved with the cable fixing sleeve, and one end of the cable fixing sleeve is provided with six annularly distributed The threaded hook, the anti-skid protrusion is provided at the connection between the threaded hook and the cable fixing sleeve, the bevel nut is sleeved on the outer side of the bevel nut, and the bevel nut and the thread One side of the hook is threadedly connected, and the side of the cable fixing sleeve is also connected with a cable connection structure, and the cable connection structure includes a double threaded sleeve, a wire end cartridge, a wire crimping head, a spring, a rotating shaft and a buckle. Both ends of the double-threaded sleeve are respectively sleeved on the side of one of the cable fixing sleeves and are threadedly connected with it, the two ends of the double-threaded sleeve are respectively fixedly connected with the spring, and the other end of the spring is One end of the beveled nut is in contact with each other, the side of the cable body is also sleeved with the wire clip box, the inner side wall of the wire clip box is provided with the wire crimping head, and one side of the wire clip box is also provided with There is the rotating shaft, the two ends of the thread end cartridge are rotatably connected by the rotating shaft, and one side of the thread end cartridge is also provided with the buckle.

Preferably, in order to ensure a good fixing effect on the wire, and at the same time reduce the friction between the wire and the connection part when the wire rotates, resulting in damage to the insulating layer, the cross-section of the threaded hook is a "U"-shaped structure, And one end of the threaded hook is an inclined surface structure.

Preferably, in order to make the threaded hook exert a certain pressure on the surface of the cable when the nut is screwed in, the cross-section of the inner thread part of the bevel nut is a circular truncated structure, and the inner thread of the bevel nut The slope of the slope of the part is the same as the slope of the slope of one end of the threaded hook.

Preferably, in order to facilitate the installation of the wire clip box, the wire clip box has a cylindrical structure, and the diameter of the wire clip box is smaller than the diameter of the outer side of the cable body.

Preferably, in order to make the cable fixing sleeve fixed on the two wires have a connection effect and facilitate the installation of the double-threaded sleeve through the thread, the inner side wall of the double-threaded sleeve is provided with a threaded structure, and the inner side of the double-threaded sleeve is provided with a threaded structure. The thread structure is divided into two parts with opposite thread directions, and the lengths are equal.

Preferably, in order to prevent the wire from being scattered when the wire crimping head exerts pressure on the metal wire, and at the same time to ensure the electrical conductivity of the wire, one end of the wire crimping head is semicircular, and the two ends of the wire head cartridge are provided with all the The positions of the crimping heads correspond to each other.

The beneficial effect of the utility model is: when the utility model is in use, the fixed connection of the flexible wires can be realized. For the connection ends of the two wires, the cable fixing sleeve is firstly fixed by splicing, which is different from the common direct fixing by clamping the metal. The way of fixing the wire head is realized by the threaded hook and the beveled nut structure, so that the connection between the threaded hook and the cable fixing sleeve exerts pressure on the cable insulation layer. The sleeve and the cable are tightly fixed. Because the pressure between the threaded hook and the insulating layer is arc-shaped, the stress-bearing surface of the insulating layer is increased, so that the wear rate of the insulating layer is slowed down, which protects the fixed part and protects the fixed part. When the wire head is fixed, the metal parts of the wire heads at both ends are directly squeezed together by the crimping head to ensure the conduction effect of the current and prevent the wire from contacting the fixing sleeve and leakage during use.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

FIG. 2 is a schematic diagram of the connection structure of the cable end fixing structure and the cable connection structure shown in FIG. 1;

FIG. 3 is a schematic structural diagram of the cable connection structure shown in FIG. 1 .

In the figure: 1. Cable body, 2. Cable end fixing structure, 21, Bevel nut, 22, Cable fixing sleeve, 23, Threaded hook, 24, Anti-skid protrusion, 3. Cable connection structure, 31, Double Threaded sleeve, 32, Thread end cartridge, 33, Thread crimping head, 34, Spring, 35, Rotating shaft, 36, Buckle.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIG. 1-3 , a connecting device for an ultra-flexible low-voltage insulated wire for automobiles includes a cable body 1, one end of the cable body 1 is connected with a cable end fixing structure 2, and the cable end The fixing structure 2 includes a bevel nut 21 , a cable fixing sleeve 22 , a threaded hook 23 and an anti-slip protrusion 24 . One end of the cable body 1 is sleeved with the cable fixing sleeve 22 . One end is provided with six threaded hooks 23 distributed in a ring shape, the connection between the threaded hooks 23 and the cable fixing sleeve 22 is provided with the anti-skid protrusion 24, and the outer sleeve of the bevel nut 21 is connected with a The bevel nut 21 is threadedly connected to one side of the threaded hook 23, and the side surface of the cable fixing sleeve 22 is also connected with a cable connection structure 3, and the cable connection structure 3 includes a double The threaded sleeve 31, the wire end cartridge 32, the wire pressing head 33, the spring 34, the rotating shaft 35 and the buckle 36, the two ends of the double threaded sleeve 31 are respectively sleeved on the side of one of the cable fixing sleeves 22 and are threaded therewith The two ends of the double-threaded sleeve 31 are respectively fixedly connected with the spring 34, the other end of the spring 34 is in contact with one end of the bevel nut 21, and the side of the cable body 1 is also sleeved with a The thread end cartridge 32 has the thread crimping head 33 on the inner side wall of the thread end cartridge 32, and the rotating shaft 35 is also provided on one side of the thread end cartridge 32. The ends are rotatably connected by the rotating shaft 35 , and the buckle 36 is also provided on one side of the thread clip box 32 .

As a technical optimization solution of the present invention, the cross-section of the threaded hook 23 is a "U"-shaped structure, and one end of the threaded hook 23 is an inclined surface structure.

As a technical optimization solution of the present invention, the cross section of the inner threaded portion of the bevel nut 21 is a circular truncated structure, and the slope of the slope of the inner threaded portion of the bevel nut 21 is the same as the slope of one end of the threaded hook 23. same.

As a technical optimization solution of the present invention, the wire stub box 32 has a cylindrical structure, and the diameter of the wire stub box 32 is smaller than the diameter of the outer side of the cable body 1 .

As a technical optimization scheme of the present invention, the inner side wall of the double-threaded sleeve 31 is provided with a threaded structure, and the threaded structure opened on the inner side of the double-threaded sleeve 31 is divided into two parts with opposite thread directions, and the lengths are equal.

As a technical optimization solution of the present invention, one end of the thread crimping head 33 is semicircular, and the positions of the thread crimping heads 33 provided at both ends of the thread end cartridge 32 correspond to each other.

When the utility model is in use, firstly, the two cable fixing sleeves 22 with the beveled nuts 21 are sleeved into the two cable ends respectively, and then the double-threaded sleeve 31 is sleeved into one of the ends, and then the two cables that need to be connected are sleeved. The insulation layer of the connecting end of the wire is evenly subtracted by a section of the same length, and at the same time, the length of the exposed metal conductive part should be slightly larger than the length of the wire head box 32, and the metal wire parts of the two wires are gathered together and placed on the wire head In the groove of the wire crimping head 33 on one side of the card box 32, after neatly arranged, turn the other side of the wire head card box 32 through the rotating shaft 35 and fasten it through the buckle 36, and then fix the cable at one end of the cable. The beveled nut 21 provided on the sleeve 22 is tightened. Due to the effect of the beveled thread on the inner side of the beveled nut 21, the threaded hook 23 is deformed by the force of extrusion, which exerts pressure on the sleeved cable insulation layer and fixes it. The anti-slip protrusion 24 provided at the connection of the cable fixing sleeve 22 further increases the fixing effect. After the fixing of one end is completed, one end of the double-threaded sleeve 31 is fixed to one end of the installed cable through threads, and then the other wire is fixed. The cable fixing sleeve 22 and the other end of the double-threaded sleeve 31 are threadedly fixed. Due to the double-threaded structure inside the double-threaded sleeve 31, the thread fixing distances of the two cable fixing sleeves 22 are equal to increase the stability, and then tighten the other Only the beveled nut 21 fixes the other cable. The springs 34 on both sides can prevent the nut from falling off. Due to the arc structure on the side of the threaded hook 23, the service life of the connection structure can be prolonged. It can prevent leakage and ensure the connection effect.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (6)

1. A connecting device for an ultra-flexible low-voltage insulated wire for automobiles, comprising a cable body (1), characterized in that: one end of the cable body (1) is connected with a cable end fixing structure (2), and the The cable end fixing structure (2) includes a bevel nut (21), a cable fixing sleeve (22), a threaded hook (23) and an anti-slip protrusion (24), and one end of the cable body (1) is sleeved with a The cable fixing sleeve (22), one end of the cable fixing sleeve (22) is provided with six threaded hooks (23) distributed in a ring shape, the threaded hooks (23) and the cable fixing sleeve ( 22) is provided with the anti-skid protrusion (24), the bevel nut (21) is sleeved on the outside of the bevel nut (21), and the bevel nut (21) and the threaded hook ( 23) is threadedly connected on one side, the side surface of the cable fixing sleeve (22) is also connected with a cable connection structure (3), and the cable connection structure (3) includes a double threaded sleeve (31), a wire end card box (32), a crimping head (33), a spring (34), a rotating shaft (35) and a buckle (36). 22) and are threadedly connected to it, the two ends of the double threaded sleeve (31) are respectively fixedly connected with the spring (34), and the other end of the spring (34) is connected to one end of the bevel nut (21). In contrast, the side of the cable body (1) is also sleeved with the wire clip box (32), and the wire crimping head (33) is provided on the inner wall of the wire clip box (32). One side of the thread end cartridge (32) is further provided with the rotating shaft (35), two ends of the thread end cartridge (32) are rotatably connected by the rotating shaft (35), and one end of the thread end cartridge (32) is rotatably connected. The buckle (36) is also provided on the side. 2. A connection device for an ultra-flexible low-voltage insulated wire for automobiles according to claim 1, wherein the cross-section of the threaded hook (23) is in a "U" shape, and the threaded hook (23) One end of the bevel structure. 3. The connecting device for an ultra-flexible low-voltage insulated wire for automobiles according to claim 1, wherein the cross-section of the inner threaded portion of the bevel nut (21) is a truncated cone structure, and the bevel nut (21) The slope of the slope of the inner threaded portion of the threaded hook (23) is the same as the slope of the slope of one end of the threaded hook (23). 4. A connection device for an ultra-flexible low-voltage insulated wire for automobiles according to claim 1, characterized in that: the wire end holder (32) is a cylindrical structure, and the diameter of the wire end holder (32) smaller than the diameter of the outer side of the cable body (1). 5. A connection device for an ultra-flexible low-voltage insulated wire for automobiles according to claim 1, characterized in that: the inner wall of the double-threaded sleeve (31) is provided with a threaded structure, and the double-threaded sleeve (31) The thread structure opened on the inner side of the thread is divided into two parts with opposite thread directions, and the lengths are equal. 6. A connection device for an ultra-flexible low-voltage insulated wire for automobiles according to claim 1, characterized in that: one end of the crimping head (33) is semicircular, and the end of the wire head cartridge (32) is semicircular. The positions of the crimping heads (33) provided at both ends correspond to each other.

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