A connector tail sleeve anti-loosening structure

Abstract

A connector tail sleeve anti-loosening structure comprises a connector shell and a tail sleeve, wherein the rear section of the connector shell is threadedly connected to the tail sleeve, and is characterized in that a clamping structure for strengthening the connection is provided between the connector shell and the tail sleeve at adjacent positions of the threaded connection. The utility model has a simple and reasonable structure, and a clamping connection is added on the basis of the threaded connection, so that the connection is firm and stable. After the shell and the tail sleeve are fixed, the tail sleeve will not loosen without auxiliary tools, thereby effectively ensuring the safety and stability of the product and extending the service life of the product.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors and relates to a connector, in particular to a tail sleeve anti-loosening structure of a connector. Background Art

[0002] A connector is a connection device that connects multiple signal lines or power lines in sequence. It is widely used in various electrical circuits and plays the role of connecting or disconnecting circuits. The structure of a connector generally includes a shell and a tail sleeve, and the rear end of the shell is connected to the tail sleeve. The existing connector shell 10 and the tail sleeve 20 are mostly connected and fixed by a threaded structure, such as Figure 1 , 2 As shown, a simple thread structure may be prone to loosening. For example, the tail sleeve may be accidentally loosened during use, causing product failure or affecting performance and safety. Another example is that after a long period of use, the product will naturally expand and contract due to heat and cold, causing the tail sleeve to loosen. In addition, use in a vibrating environment will also cause the threads to loosen, affecting the normal use of the product.

[0003] Therefore, it is necessary to improve the existing tail sleeve connection structure of the connector and design a tail sleeve anti-loosening structure of the connector. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a tail sleeve anti-loosening structure of a connector with a simple structure and a firm and stable connection in view of the above technical status.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: a connector tail sleeve anti-loosening structure, including a connector shell and a tail sleeve, the rear section of the connector shell is threadedly connected to the tail sleeve, and is characterized in that a clamping structure for strengthening the connection is also provided between the connector shell and the tail sleeve at adjacent parts of the threaded connection.

[0006] Furthermore, the rear section of the connector shell is a cylindrical connecting section formed with an external thread, and a buckle is convexly provided on the connecting section and in front of the external thread; a corresponding internal thread hole is provided at the front end of the tail sleeve, and an annular groove cooperating with the buckle is concavely provided on the inner wall of the tail sleeve and in front of the internal thread hole. When the connector shell and the tail sleeve are connected by threads, the buckle is inserted into the annular groove to lock and fix the connecting shell and the tail sleeve.

[0007] Furthermore, the buckle is an annular buckle.

[0008] Furthermore, the buckle is a buckle composed of a plurality of arc segment-shaped buckles arranged at intervals along the outer peripheral surface.

[0009] Furthermore, the arc segment-shaped buckles are evenly spaced on the circumferential cross section.

[0010] Furthermore, the rear end surface of the buckle is an inclined surface for easy insertion into the annular groove of the tail sleeve.

[0011] Furthermore, the tail sleeve is formed with a guiding inclined surface on the front side of the annular groove.

[0012] Finally, the front and rear wall surfaces of the annular groove are straight surfaces, and the front wall surface of the annular buckle is also straight surfaces.

[0013] Compared with the prior art, the advantages of the present invention are: a buckle is convexly provided on the front side of the external thread of the rear section of the connector shell, and a corresponding annular groove is concavely provided on the front side of the internal thread hole of the tail sleeve. When the connector shell and the tail sleeve are fixed by threaded connection, the buckle is just inserted into the annular groove to lock and fix the connecting shell and the tail sleeve. The present invention has a simple and reasonable structure, and a snap connection is added on the basis of the threaded connection, so that the connection is firm and stable. After the shell and the tail sleeve are fixed without auxiliary tools, the tail sleeve will not loosen, effectively ensuring the safety and stability of the product and extending the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of the front connector for improvement;

[0015] Figure 2 for Figure 1 Exploded diagram of

[0016] Figure 3 It is a schematic diagram of the structure of an embodiment of the utility model;

[0017] Figure 4 for Figure 3 Side view of

[0018] Figure 5 for Figure 3 A cross-sectional view of

[0019] Figure 6 for Figure 4 A cross-sectional view of

[0020] Figure 7 This is a schematic diagram of the buckling process of an embodiment of the utility model;

[0021] Figure 8 for Figure 3 A partial enlarged view of . DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] like Figures 3 to 8As shown, a connector tail sleeve anti-loosening structure comprises a connector shell 1 and a tail sleeve 2. The rear section of the connector shell 1 is a cylindrical connecting section 11 formed with an external thread. A buckle 12 is convexly provided on the connecting section 11 and the front side of the external thread in an annular direction. A corresponding internal thread hole 21 is provided at the front end of the tail sleeve 2. An annular groove 22 cooperating with the buckle 12 is concavely provided on the inner wall of the tail sleeve 2 and the front side of the internal thread hole 21. When the connector shell 2 and the tail sleeve 3 are fixed by threaded connection, the buckle 12 is snapped into the annular groove 22 to lock and fix the connecting shell 1 and the tail sleeve 2, thereby adding a snap connection to the adjacent parts of the threaded connection.

[0024] The buckle 12 of this embodiment is an annular buckle, and the rear end surface of the buckle 12 is an inclined surface 13 for easy insertion into the annular groove 22 of the tail sleeve 2. Correspondingly, the tail sleeve 2 is formed with a guiding inclined surface 23 on the front side of the annular groove 22 to facilitate the tail sleeve 2 to be inserted into the annular groove 22.

[0025] The buckle 12 is not limited to an annular buckle, but may also be a plurality of arc segment buckles spaced apart along the outer circumference. A plurality of arc segment buckles are arranged on a circular cross section to form a substantially complete buckle that cooperates with the annular groove 22 of the tail sleeve 2.

[0026] Furthermore, in order to improve the locking force, the front and rear wall surfaces 24 of the annular groove 22 are straight, and the front wall surface 14 of the annular buckle 12 is also straight, so that they are not easy to slip and fall out when they are locked together, see Figure 8 .

[0027] The front end of the housing 1 is provided with an inner core assembly 3, which includes an inner core shell and an inner core, and the rear end of the inner core assembly 3 is connected to the optical cable. The front end of the tail sleeve 2 is provided with an internal thread hole corresponding to the rear external thread connection section of the housing 1, and the rear end of the tail sleeve 2 is provided with a through hole for the optical cable to pass through.

[0028] The specific operation process is as follows:

[0029] Align the tail boot 2 with the rear section of the connector housing 1 and rotate and tighten it. While the threaded connection is fixed, the buckle 12 is inserted into the annular groove 22 to lock the connector housing 1 and the tail boot 2. After the two are fixed, the tail boot 2 will not come loose without auxiliary tools. Figure 7 .

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A connector tail sleeve anti-loosening structure, comprising a connector housing and a tail sleeve, wherein the rear section of the connector housing is threadedly connected to the tail sleeve, and is characterized in that At the adjacent part of the threaded connection, there is a clamping structure between the connector housing and the tail sleeve for strengthening the connection.

2. The tail sleeve anti-loosening structure according to claim 1, characterized in that: The rear section of the connector shell is a cylindrical connecting section formed with an external thread, and a buckle is convexly provided on the connecting section and in front of the external thread; a corresponding internal thread hole is provided at the front end of the tail sleeve, and an annular groove matching the buckle is concavely provided on the inner wall of the tail sleeve and in front of the internal thread hole. When the connector shell and the tail sleeve are connected by threads, the buckle is inserted into the annular groove to lock and fix the connecting shell and the tail sleeve.

3. The tail sleeve anti-loosening structure according to claim 2, characterized in that: The buckle is an annular buckle.

4. The tail sleeve anti-loosening structure according to claim 2, characterized in that: The buckle is composed of a plurality of arc segment-shaped buckles arranged at intervals along the outer peripheral surface.

5. The tail sleeve anti-loosening structure according to claim 4, characterized in that: The arc segment-shaped buckles are evenly spaced and distributed on the circumferential cross section.

6. The tail sleeve anti-loosening structure according to any one of claims 2 to 5, characterized in that: The rear end surface of the buckle is an inclined surface for easy insertion into the annular groove of the tail sleeve.

7. The tail sleeve anti-loosening structure according to claim 6, characterized in that: The tail sleeve is formed with a guiding inclined surface on the front side of the annular groove.

8. The tail sleeve anti-loosening structure according to claim 7, characterized in that: The front and rear wall surfaces of the annular groove are straight surfaces, and the front wall surface of the annular buckle is also straight surfaces.

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