CN219350842U

CN219350842U - Screw locking type electric connector with accidental release preventing function

Info

Publication number: CN219350842U
Application number: CN202320080420.XU
Authority: CN
Inventors: 余睿; 吴旭娇; 刘向阳; 郭安迪
Original assignee: Chengdu Hongming Electronics Co Ltd
Current assignee: Chengdu Hongming Electronics Co Ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-07-14
Anticipated expiration: 2033-01-13

Abstract

The utility model discloses a screw locking type electric connector with an unexpected loosening prevention function, which comprises a plug and a socket, wherein a baffle ring is arranged on the circumferential outer wall of a plug shell and a connecting cylinder is sleeved on the outer wall of the plug shell, one end of the connecting cylinder is provided with a connecting cylinder convex ring, a protecting cylinder is sleeved outside the connecting cylinder, one end, close to the connecting cylinder convex ring, of the protecting cylinder is provided with a protecting cylinder convex ring, the protecting cylinder convex ring is arranged on one side, far away from the baffle ring, of the connecting cylinder convex ring and is blocked by the connecting cylinder convex ring from moving in the direction close to the baffle ring, and the annular end face, close to the connecting cylinder convex ring, of the connecting cylinder convex ring and the annular end face, close to the connecting cylinder convex ring, of the protecting cylinder convex ring are rough surfaces capable of being meshed with each other. In the use process, the external wall of the protection cylinder can only drive the protection cylinder to rotate due to unexpected friction force, but the protection cylinder can only idle and can not release and separate the plug from the socket, so that the function of preventing the plug from accidentally releasing from the socket is realized.

Description

Screw locking type electric connector with accidental release preventing function

Technical Field

The present utility model relates to an electrical connector, and more particularly, to a screw locking type electrical connector with an unexpected release preventing function.

Background

The basic structure of the electrical connector includes a plug and a socket connected to each other, the plug including a plug housing and a plug contact (typically a pin or a jack) mounted in the plug housing, the socket including a socket housing and a socket contact (typically a jack or a pin) mounted in the socket housing, the plug contact and the socket contact being in plug-in connection with each other.

In order to prevent the plug from loosening from the socket in use, the electrical connector with a locking function between the plug and the socket is generally required, for example, the locking function is generally realized through threaded connection, the specific structure is that a cylindrical connecting cylinder is sleeved on a plug shell (also can be a socket shell), a convex baffle ring is arranged on the circumferential outer wall of the plug shell, one end of the connecting cylinder is provided with a convex ring protruding towards the direction of the center, the convex ring is arranged on one side of the baffle ring far away from the socket and is blocked by the baffle ring from moving towards the direction close to the socket, an internal thread is arranged on the circumferential inner wall of the connecting cylinder, and an external thread is arranged on the circumferential outer wall of the connecting end of the socket shell (also can be the plug shell), so that the locking function between the plug shell and the socket shell is realized through the connection of the internal thread of the connecting cylinder and the external thread on the socket shell, and the loosening of the plug and the socket in use is avoided.

The above-mentioned traditional locking structure that realizes locking function through the connecting cylinder has following defect:

if the connecting cylinder is subjected to external unexpected friction force, the friction force can directly act on the connecting cylinder and possibly directly drive the connecting cylinder to rotate, and the connecting cylinder is connected with the socket shell through threads, so that the connecting cylinder and the socket shell can be loosened or separated, and the plug contact piece and the socket contact piece are driven to be loosened or separated, so that the connection reliability between the plug and the socket is reduced.

Disclosure of Invention

The present utility model has been made to solve the above problems, and an object of the present utility model is to provide a screw locking type electrical connector having an unexpected release preventing function.

The utility model realizes the above purpose through the following technical scheme:

the utility model provides a screw thread locking formula electric connector with prevent unexpected pine and take off function, includes plug and socket, the plug include the plug casing with install in plug contact spare in the plug casing, the socket include the socket casing with install in socket contact spare in the socket casing, be equipped with the socket external screw thread on the link circumference outer wall of socket casing, be equipped with the convex fender ring on the circumference outer wall of plug casing and cover and be equipped with cylindric connecting cylinder, the one end of connecting cylinder is equipped with one and keeps away from the convex connecting cylinder bulge loop in its central line direction, the connecting cylinder bulge loop is arranged in keep away from one side of socket and by keep away from the bulge loop can not be to be close to the direction of socket is removed, be equipped with connecting cylinder internal screw thread on the circumference inner wall of connecting cylinder, connecting cylinder internal screw thread with socket external screw thread connection, the cylindric one end that is close to on the protecting cylinder bulge loop is equipped with the convex protecting cylinder bulge loop to its central line direction, the protecting cylinder bulge loop is arranged in the protecting cylinder bulge loop keeps away from one side of connecting cylinder bulge loop can keep away from by the annular bulge loop and the annular bulge loop can be in the annular bulge loop and can be in the direction that the connecting cylinder can be moved towards the annular bulge loop keeps away from the bulge loop and can be adjacent to the annular bulge loop on the connecting cylinder. The roughened surface herein may be a roughened surface of coarse particles.

Preferably, in order to improve non-transmission between the inner wall of the protection cylinder and the outer wall of the connection cylinder to achieve a better anti-loosening effect, the circumferential inner wall surface of the protection cylinder and the circumferential outer wall surface of the connection cylinder are both smooth surfaces.

Preferably, in order to facilitate the assembly and disassembly operations between the plug and the socket, the circumferential outer wall of the protection cylinder is provided with an anti-slip strip protruding outwards, and the circumferential outer wall of the socket shell is provided with an anti-slip convex ring protruding outwards.

The utility model has the beneficial effects that:

according to the utility model, the protection cylinder is additionally arranged and sleeved outside the connection cylinder, the annular end face of the convex ring of the connection cylinder and the corresponding annular end face of the convex ring of the protection cylinder are provided with the rough surfaces which can be meshed with each other, the connection cylinder can be driven to rotate by pressing the convex ring of the protection cylinder on the convex ring of the connection cylinder and rotating the protection cylinder when the plug and the socket are connected and disconnected, so that the connection function and the disassembly function between the connection cylinder and the socket shell are realized, after the protection cylinder is locked, the outer wall of the protection cylinder is subjected to unexpected friction force and is almost impossible to be pressed on the convex ring of the protection cylinder when the protection cylinder is used, so that the friction force only can drive the protection cylinder to rotate, but no transmission structure exists between the inner wall of the protection cylinder and the outer wall of the connection cylinder, so that the protection cylinder can only idle and can not be released and separated between the plug and the socket, and the function of preventing accidental loosening of the plug and the socket is realized.

Drawings

FIG. 1 is a perspective view of a female receptacle of a screw locking electrical connector with an accidental release prevention feature of the present utility model prior to assembly;

FIG. 2 is a perspective view of an assembled receptacle of the screw locking electrical connector with the function of preventing accidental release of the present utility model;

FIG. 3 is a perspective view of the plug of the screw locking electrical connector with the function of preventing accidental release of the connector of the present utility model prior to assembly;

FIG. 4 is a perspective view of an assembled plug of a screw locking electrical connector having an accidental release prevention function according to the present utility model;

FIG. 5 is a perspective view of a connector barrel of a plug of a screw locking type electrical connector having an accidental release prevention function according to the present utility model;

FIG. 6 is a partial cutaway perspective view of a protective barrel of a plug of a screw-locking electrical connector having an accidental release prevention function according to the present utility model;

fig. 7 is a front cross-sectional view of an assembled plug of the screw locking type electrical connector with an unexpected release preventing function according to the present utility model.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

as shown in fig. 1-7, the screw locking type electric connector with the function of preventing unexpected loosening comprises a plug 2 and a socket 1, wherein the plug 2 comprises a plug housing 21 and a plug contact 22 (jack in the figure) arranged in the plug housing 21, the socket 1 comprises a socket housing 11 and a socket contact 10 (pin in the figure) arranged in the socket housing 11, a socket external thread 12 is arranged on the circumferential outer wall of a connecting end of the socket housing 11, an outwards convex baffle ring 20 is arranged on the circumferential outer wall of the plug housing 21 and sleeved with a cylindrical connecting cylinder 24, one end of the connecting cylinder 24 is provided with a connecting cylinder convex ring 26 protruding towards the central line direction of the baffle ring 20, the connecting cylinder convex ring 26 is arranged on one side of the baffle ring 20 away from the socket 1 and is blocked by the baffle ring 20 from moving towards the direction close to the socket 1, a connecting cylinder internal thread 23 is arranged on the circumferential inner wall of the connecting cylinder 24, the connecting cylinder internal thread 23 is connected with the socket external thread 12 through a central through hole of the connecting cylinder 24, one end of the protecting cylinder 25 is sleeved with a protecting cylinder convex ring 28 towards the central line of the connecting cylinder, the protecting cylinder convex ring 28 towards the central line is arranged on the connecting cylinder, the end surface of the protecting cylinder 25 is a rough surface of the connecting cylinder convex ring 28 is arranged on the surface of the connecting cylinder convex ring 28, and the connecting cylinder convex ring 28 can be meshed with the surface of the convex ring 28 towards the end surface of the convex ring 28, and the convex ring 28 is preferably arranged towards the rough surface of the convex ring 28 towards the end surface of the connecting cylinder 26 and can be meshed with the convex ring 28 towards the convex ring 28.

Preferably, in order to improve the non-transmission between the inner wall of the protection cylinder 25 and the outer wall of the connection cylinder 24 to achieve a better anti-loosening effect, the circumferential inner wall surface of the protection cylinder 25 and the circumferential outer wall surface of the connection cylinder 24 are both smooth surfaces; in order to facilitate the assembly and disassembly operations between the plug 2 and the socket 1, the circumferential outer wall of the protection cylinder 25 is provided with an outwardly protruding anti-slip strip (not labeled in the figure), and the circumferential outer wall of the socket housing 11 is provided with an outwardly protruding anti-slip collar (not labeled in the figure).

As shown in fig. 1 to 7, when the plug 2 and the socket 1 are connected, the protection barrel 25 is held by hand and the protection barrel convex ring 28 is pressed on the connection barrel convex ring 26, and meanwhile, the connection barrel 24 can be driven to rotate by rotating the protection barrel 25 until the connection barrel 24 is connected and locked with the socket housing 11, and in the process, the plug contacts 22 and the socket contacts 10 are in one-to-one plug connection, so that the connection and locking functions between the plug 2 and the socket 1 are realized. In the process of using the electric connector, the outer wall of the protection barrel 25 is almost impossible to be pressed against the connecting barrel convex ring 26 when being subjected to unexpected friction force, so the friction force only can drive the protection barrel 25 to rotate, but no transmission structure exists between the inner wall of the protection barrel 25 and the outer wall of the connecting barrel 24, so the protection barrel 25 only can idle and can not enable the plug 2 and the socket 1 to be loosened and separated, thereby realizing the function of preventing the plug 2 and the socket 1 from being accidentally loosened. During disassembly, the protection barrel 25 is held by hand and the protection barrel convex ring 28 is pressed on the connection barrel convex ring 26, and meanwhile, the connection barrel 24 can be driven to reversely rotate by reversely rotating the protection barrel 25 until the connection barrel 24 is separated from the socket shell 11, and in the process, the plug contacts 22 and the socket contacts 10 are gradually separated, so that the disassembly function between the plug 2 and the socket 1 is realized.

The above embodiments are only preferred embodiments of the present utility model, and are not limiting to the technical solutions of the present utility model, and any technical solution that can be implemented on the basis of the above embodiments without inventive effort should be considered as falling within the scope of protection of the patent claims of the present utility model.

Claims

1. The utility model provides a screw thread locking formula electric connector with prevent unexpected pine and take off function, includes plug and socket, the plug include the plug casing with install in plug contact spare in the plug casing, the socket include the socket casing with install in socket contact spare in the socket casing, be equipped with socket external screw thread on the link circumference outer wall of socket casing, be equipped with the fender ring of evagination on the circumference outer wall of plug casing and cover and be equipped with cylindric connecting cylinder, the one end of connecting cylinder is equipped with one and to the bellied connecting cylinder bulge loop of its central line direction, the connecting cylinder bulge loop is arranged in keep away from one side of socket and by keep off the ring and be blocked can not be to be close to the direction removal of socket, be equipped with the connecting cylinder internal screw thread on the circumference inner wall of connecting cylinder, connecting cylinder internal screw thread with socket external screw thread connection, its characterized in that: the cylindrical protection barrel is sleeved outside the connection barrel through a central through hole of the cylindrical protection barrel, one end of the protection barrel, which is close to the connection barrel convex ring, is provided with a protection barrel convex ring protruding towards the central line direction, the protection barrel convex ring is arranged on one side, which is far away from the baffle ring, of the connection barrel convex ring and is blocked by the connection barrel convex ring and cannot move towards the direction, which is close to the baffle ring, of the connection barrel convex ring, and the annular end face, which is close to the protection barrel convex ring, of the connection barrel convex ring and the annular end face, which is close to the connection barrel convex ring, of the protection barrel convex ring are rough surfaces which can be meshed with each other.

2. The screw locking type electrical connector with accidental release prevention function according to claim 1, wherein: the circumferential inner wall surface of the protection cylinder and the circumferential outer wall surface of the connecting cylinder are smooth surfaces.

3. The screw locking type electrical connector with unexpected release prevention function according to claim 1 or 2, wherein: the circumference outer wall of the protection cylinder is provided with an anti-slip strip protruding outwards, and the circumference outer wall of the socket shell is provided with an anti-slip convex ring protruding outwards.