CN213989308U

CN213989308U - Separable connector

Info

Publication number: CN213989308U
Application number: CN202120162084.4U
Authority: CN
Inventors: 万畅; 田正兵; 孔灿; 白晓烨; 赵艺璇
Original assignee: Jiangsu Zhongtian Technology Cable Accessories Co ltd
Current assignee: Jiangsu Zhongtian Technology Cable Accessories Co ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-08-17
Anticipated expiration: 2031-01-20

Abstract

The utility model provides a pair of separable connector belongs to cable connector technical field, include: a connection terminal having a first connection end to which a cable is connected and a second connection end to which a device is connected; the stud bolt penetrates through the second connecting end and then is connected to an equipment sleeve, and the equipment sleeve is suitable for being connected to external equipment; the locknut is sleeved on the stud bolt to enable the second connecting end to be tightly abutted against the equipment sleeve; the thread root of the internal thread of the locknut is provided with a wedge-shaped surface inclined towards the axis direction of the locknut, the included angle between the wedge-shaped surface and the horizontal plane is less than 45 degrees, and the thread tip of the external thread of the stud is abutted to the wedge-shaped surface. The utility model discloses a cusp is greater than the axial component to the radial component of wedge, has increased the frictional force between lock nut and the stud, avoids connecting terminal and the equipment sleeve intervascular not hard up phenomenon of taking place.

Description

Separable connector

Technical Field

The utility model relates to a cable connector technical field, concretely relates to separable connector.

Background

The separable connector is used on medium-voltage switchgear and can connect accessories such as copper bars, transformers and the like and electrical elements.

At present, a separable connector connecting structure is that a connecting terminal is fixed on an equipment sleeve by using a stud bolt and is compressed by a nut; the nut is not installed in place or is easy to loosen after long running time, so that the connection terminal is in poor contact with the equipment sleeve to generate a heating phenomenon, and a product is punctured in severe cases.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the present invention is to overcome the defect that the nut of the separable connector in the prior art is easy to loose, thereby providing an anti-loose separable connector.

In order to solve the technical problem, the utility model provides a separable connector, include:

a connection terminal having a first connection end to which a cable is connected and a second connection end to which a device is connected;

the stud bolt penetrates through the second connecting end and then is connected to an equipment sleeve, and the equipment sleeve is suitable for being connected to external equipment;

the locknut is sleeved on the stud bolt to enable the second connecting end to be tightly abutted against the equipment sleeve;

the thread root of the internal thread of the locknut is provided with a wedge-shaped surface inclined towards the axis direction of the locknut, the included angle between the wedge-shaped surface and the horizontal plane is less than 45 degrees, and the thread tip of the external thread of the stud is abutted to the wedge-shaped surface.

Preferably, the included angle between the wedge-shaped surface and the horizontal plane is 30 degrees.

Preferably, the external thread of the stud bolt is a trapezoidal thread, and the tip of the trapezoidal thread abuts against the wedge-shaped surface.

Preferably, the locknut abuts against the connection terminal through a flat washer.

Preferably, a spring washer is arranged between the flat washer and the locknut.

Preferably, the method further comprises the following steps:

and the insulating plug is sleeved on one end of the locknut, which is suitable for deviating from the equipment sleeve.

Preferably, an insulating cap covers one end of the insulating plug, which faces away from the equipment casing, and the outer surface of the insulating cap is grounded.

Preferably, the method further comprises the following steps:

the connector housing has the first chamber and the second chamber that holds that mutually perpendicular and intercommunication, the first chamber that holds is used for holding the equipment sleeve pipe and insulating stopper, the second holds the chamber and is used for holding connecting terminal, the surface ground connection of connector housing.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a separable connector, the wedge face of locknut's internal thread bottom of tooth department is line contact with stud's external screw thread cusp, and the wedge face is less than 45 with the contained angle of horizontal plane, then the radial component of cusp to the wedge face is greater than the axial component, has increased the frictional force between locknut and the stud, avoids connecting terminal and the equipment sleeve intervally to take place not hard up phenomenon.

2. The utility model provides a separable connector, spring shim's setting, increase locknut prevents not hard up to connecting terminal's pretightning force.

3. The utility model provides a separable connector, the setting of insulating stopper, insulator cap and connector housing has increased holistic insulating nature, avoids separable connector product to be punctured, takes place the phenomenon of discharging.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a separable connector provided in the present invention.

Fig. 2 is a schematic view of the connection relationship between the stud bolt and the locknut.

Fig. 3 is a schematic view of the connection relationship between the external thread of the stud bolt and the internal thread of the locknut.

Description of reference numerals:

1. a stud bolt; 2. a connection terminal; 3. an equipment sleeve; 4. a locknut; 5. an insulating plug; 6. an insulating cap; 7. a connector housing; 8. a flat gasket; 9. a spring washer; 10. a cable; 11. a stress cone; 12. a wedge-shaped surface; 13. an internal thread; 14. and (4) external threads.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The present embodiment provides a separable connector, including: stud bolt 1, connection terminal 2, equipment bushing 3, locknut 4, insulating plug 5, insulating cap 6 and connector housing 7.

As shown in fig. 1 and 2, the equipment sleeve 3 is a conical structure, one end of the equipment sleeve 3 is used for connecting to external equipment, and the center of the other end face of the equipment sleeve 3 is provided with a first threaded hole; the connecting terminal 2 is provided with a first connecting plate and a second connecting end, and the first connecting end is tightly attached to the end face, provided with the first threaded hole, of the equipment sleeve 3; one end of the stud bolt 1 penetrates through the first connecting end of the connecting terminal 2 and then is in threaded connection with the first threaded hole, the locknut 4 is in threaded connection with the other end of the stud bolt 1, and the locknut 4 is abutted against the first connecting end of the connecting terminal 2; flat gaskets 8 and spring gaskets 9 are sleeved on the locknut 4, the flat gaskets 8 are located between the locknut 4 and the connecting terminals 2, and the spring gaskets 9 are located between the flat gaskets 8 and the locknut 4. The second connection end of the connection terminal 2 is connected with a cable 10, and the cable 10 is connected with the second connection end through a stress cone 11.

As shown in fig. 3, a wedge-shaped surface 12 is arranged at the root of the internal thread 13 of the locknut 4, the wedge-shaped surface 12 is inclined towards the axis of the locknut 4, and the included angle between the wedge-shaped surface 12 and the horizontal plane is 30 degrees; the external thread 14 of the stud bolt 1 is a trapezoidal thread, and the tooth point of the trapezoidal thread is abutted against the wedge-shaped surface 12; the pressure angle of the tooth point to the wedge-shaped surface 12 is 60 degrees, then the radial component force on the wedge-shaped surface 12 is greater than the axial component force, the friction force between the locknut 4 and the stud bolt 1 is increased, and the loosening phenomenon between the connecting terminal 2 and the equipment sleeve 3 is avoided.

As shown in fig. 1, the insulating plug 5 is a conical structure, and has a second threaded hole and a stepped hole which axially penetrate through the second threaded hole, and the diameter of the stepped hole is larger than that of the second threaded hole; the insulating plug 5 is connected to the stud bolt 1 through a second threaded hole, the locknut 4 extends into the step hole, and the insulating plug 5 is tightly abutted to the flat gasket 8; the one end department of keeping away from of insulating plug 5 equipment sleeve 3 is equipped with insulating cap 6, the surface ground connection of insulating cap 6.

As shown in fig. 1, the connector housing 7 is a T-shaped structure, and has a first accommodating cavity and a second accommodating cavity which are vertically communicated, and the outer surface of the connector housing 7 is grounded; the equipment sleeve 3 is inserted into the first accommodating cavity through the left opening of the first accommodating cavity, and the insulating plug 5 is inserted into the first accommodating cavity through the right opening of the first accommodating cavity; the connecting terminal 2 is positioned in the second accommodating cavity, and part of the connecting terminal extends into the first accommodating cavity; the cable 10 is connected with the connection terminal 2 through a stress cone 11, and the stress cone 11 completely extends into the second accommodating cavity.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A separable connector, comprising:

a connection terminal (2) having a first connection end for connecting a cable (10) and a second connection end for connecting a device;

the stud (1) penetrates through the second connecting end and then is connected to the equipment sleeve (3), and the equipment sleeve (3) is suitable for being connected to external equipment;

the locknut (4) is sleeved on the stud bolt (1) to enable the second connecting end to be tightly abutted against the equipment sleeve (3);

the root of the internal thread (13) of the locknut (4) is provided with a wedge-shaped surface (12) inclined towards the axis direction, the included angle between the wedge-shaped surface (12) and the horizontal plane is less than 45 degrees, and the tooth tip of the external thread (14) of the stud bolt (1) is abutted to the wedge-shaped surface (12).

2. Separable connector according to claim 1, characterized in that said wedge surface (12) is angled 30 ° to the horizontal.

3. Separable connector according to claim 1, characterized in that the external thread (14) of the stud (1) is a trapezoidal thread, the tip of which abuts on the wedge-shaped face (12).

4. Separable connector according to claim 1, characterized in that the locknut (4) abuts with the connection terminal (2) by means of a flat washer (8).

5. Separable connector according to claim 4, characterized in that a spring washer (9) is provided between the flat washer (8) and the locknut (4).

6. The separable connector of any one of claims 1-5, further comprising:

and the insulating plug (5) is sleeved on one end of the locknut (4) which is suitable for deviating from the equipment sleeve (3).

7. The separable connector according to claim 6, characterized in that an end of the insulating plug (5) facing away from the equipment bushing (3) is capped with an insulating cap (6), an outer surface of the insulating cap (6) being grounded.

8. The separable connector of claim 6, further comprising:

the connector shell (7) is provided with a first accommodating cavity and a second accommodating cavity which are perpendicular to each other and communicated with each other, the first accommodating cavity is used for accommodating the equipment sleeve (3) and the insulating plug (5), the second accommodating cavity is used for accommodating the connecting terminal (2), and the outer surface of the connector shell (7) is grounded.