CN217215935U

CN217215935U - Connecting device for lead plug and cable sleeve

Info

Publication number: CN217215935U
Application number: CN202122840720.7U
Authority: CN
Inventors: 褚昊; 丛述广; 柏德军; 沈国权; 肖永国; 梁斌; 金鹏; 刘尊良; 崔波; 陈一桐; 周益冰; 姜雯丹; 北迪
Original assignee: Huaneng Dalian Thermal Power Co Ltd
Current assignee: Huaneng Dalian Thermal Power Co Ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-08-16
Anticipated expiration: 2031-11-19

Abstract

The utility model provides a connecting device of a lead wire plug and a cable sleeve, which comprises a valve body, wherein one side of the valve body is detachably connected with a lead wire aviation plug, the middle part of the lead wire aviation plug is penetrated with a cable, and the cable is detachably connected with the valve body; the cable other end runs through cable sleeve, cable sleeve with lead wire aviation plug passes through coupling assembling and can dismantle the connection. The utility model discloses a be provided with coupling assembling, utilize coupling assembling to realize effectively having prevented that cable sleeve and lead wire aviation plug's spiral from linking to each other to having leaded to the in-process of use to appear droing, the cable bumps unusual phenomena such as grinding, wearing and tearing.

Description

Connecting device for lead plug and cable sleeve

Technical Field

The utility model relates to an industrial production steam turbine digital electro-hydraulic control field specifically is a lead wire plug and cable sleeve's connecting device.

Background

At present, the main function of a control (DEH) valve of an electrohydraulic converter of an industrial production steam turbine is that the control valve receives output power and rotating speed signals of a steam turbine generator in a Distributed Control System (DCS) to change the opening of a speed regulating valve, so that the rotating speed and the output power, namely the load, of the steam turbine generator are controlled in a closed loop mode. The lead mode of the turbine electrohydraulic converter control valve is that the lead is welded on a contact pin inside an aviation plug and is connected with a special socket, and a protective sleeve or a protection and locking device is not arranged outside the aviation plug.

Along with the increase of equipment service life and the steam turbine vibration etc. lead to wearing and tearing when moving, often take place the phenomenon that aviation pin plug connection position is not hard up and control cable damages, lead to the inside welding position fracture of aviation pin even when serious, lead wire connection interrupts, leads to the technical problem of valve closing accident in the twinkling of an eye.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a lead wire plug and cable sleeve's connecting device for vibration etc. lead to wearing and tearing along with the increase of equipment service life and steam turbine operation that provide among the solution above-mentioned background art, often take place the phenomenon that aviation lead wire plug connection position is not hard up and control cable damages, lead to the inside weld part fracture of aviation plug even when serious, the pin connection interrupt leads to the technical problem of valve closed accident in the twinkling of an eye.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a connecting device of a lead plug and a cable sleeve comprises a valve body, wherein one side of the valve body is detachably connected with a lead aviation plug, a cable penetrates through the middle of the lead aviation plug, and the cable is detachably connected with the valve body;

the cable other end runs through cable sleeve, cable sleeve with lead wire aviation plug passes through coupling assembling and can dismantle the connection.

Furthermore, the reinforcing rib is arranged on the outer side of the cable sleeve in a spiral manner.

Further, coupling assembling includes the connecting pipe, lead wire circular plug is equipped with the tubulose and connects, connecting pipe sliding connection the tubulose connects, lead wire circular plug one end outside can be dismantled and connect first positioning disk, the connecting pipe outside can be dismantled and connect the second positioning disk, first positioning disk with the second positioning disk is fixed through the bolt, connecting position nut can be dismantled to connecting pipe one end, cable sleeve one end welded connection screw cable sleeve, internal thread cable sleeve screwed connection position nut.

Furthermore, the positioning nut is formed by fixing an annular ring and an internal thread pipe, and the internal wall of the internal thread pipe is in threaded connection with an external thread structure at one end of the threaded cable sleeve.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a can dismantle connection and connection subassembly in lead wire circular connector one end, utilize connection subassembly can dismantle the connection cable sleeve to realize that cable sleeve and lead wire circular connector's dismantling is connected, increase protection and fixing device between circular connector and the standard cable sleeve, effectively prevent in service circular connector pine take off, the cable bumps abnormal phenomena such as grinding, wearing and tearing, especially can prevent control system failure accident.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of the prior art structure of the present invention;

fig. 3 is a schematic diagram of the connection assembly structure of the present invention.

In the figure: 1. a valve body; 2. a lead aviation plug; 21. a tubular fitting; 22. a first positioning plate; 3. a cable; 4. a cable bushing; 41. reinforcing ribs; 5. a connecting assembly; 51. a connecting pipe; 52. a second positioning plate; 53. a bolt; 54. a cable bushing; 55. a threaded cable bushing.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, and on the contrary, these embodiments are provided so as to make the disclosure more thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the invention herein is for the purpose of describing particular embodiments and is not intended to limit the invention, and the use of the term "and/or" herein includes any and all combinations of one or more of the associated listed items.

In the embodiment, please refer to fig. 1-3 again, a connection device of a lead plug and a cable sleeve comprises a valve body 1, a lead aviation plug 2 is detachably connected to one side of the valve body 1, a cable 3 is inserted in the middle of the lead aviation plug 2, and the cable 3 is detachably connected to the valve body 1;

the cable 3 other end runs through cable sleeve 4, cable sleeve 4 with lead wire aviation plug 2 can dismantle the connection through coupling assembling 5, 4 outside strengthening ribs 41 of cable sleeve, strengthening rib 41 is the heliciform setting. Cable sleeve 4 with lead wire aviation plug 2 can dismantle through coupling assembling 5 and connect, utilizes coupling assembling 5 to strengthen increasing protection and fixing device between aviation lead wire plug and the standard cable sleeve, effectively prevents unusual phenomena such as aviation lead wire plug pine takes off, the cable bumps and grinds, wearing and tearing in the operation, especially can prevent control system malfunction accident.

Please refer to fig. 3 again, coupling assembling 5 includes connecting pipe 51, lead wire aviation plug 2 is equipped with the tubulose and connects 21, connecting pipe 51 sliding connection tubulose connects 21, 2 one end outsides of lead wire aviation plug can dismantle the first positioning disk 22 of connection, the second positioning disk 52 can be dismantled in the connecting pipe 51 outside, first positioning disk 22 with second positioning disk 52 is fixed through bolt 53, connecting pipe 51 one end can be dismantled and connect set nut 54, 4 one end welded connection threaded cable sleeve 55 of cable sleeve, threaded cable sleeve 55 screwed connection set nut 54, set nut 54 is formed by an annular circle and an internal thread pipe is fixed, the internal wall threaded connection threaded cable sleeve 55 one end's of internal thread pipe external screw thread structure.

The operation principle is as follows: firstly, a lead aviation plug is detachably connected to one side of a valve body 1, a first positioning disc is arranged at one end of the lead aviation plug, a tubular joint slides through a connecting pipe, a second positioning disc is connected with the first positioning disc through bolts, M2 & lt4 & gt galvanized bolts are arranged on the second positioning disc, and a connecting device is made of SUS304 stainless steel;

and the cable runs through from its middle part, and simultaneously, connecting pipe one end is equipped with set nut, and the external screw thread structure of threaded cable sleeve 55 one end is connected to set bolt middle part spiral, forms fixedly, and threaded cable sleeve 55 one side and cable sleeve welded connection simultaneously to form holistic fixed.

The above description is taken as an example to describe the present invention with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, as long as the present invention is adopted, the method concept and the technical solution of the present invention are performed to perform this kind of insubstantial improvement, or the concept and the technical solution of the present invention are directly applied to other occasions without improvement, all within the protection scope of the present invention.

Claims

1. A connecting device of a lead plug and a cable sleeve comprises a valve body (1), and is characterized in that: a lead aviation plug (2) is detachably connected to one side of the valve body (1), a cable (3) is inserted into the middle of the lead aviation plug (2), and the cable (3) is detachably connected with the valve body (1);

the other end of the cable (3) penetrates through a cable sleeve (4), and the cable sleeve (4) is detachably connected with the lead aviation plug (2) through a connecting component (5);

coupling assembling (5) are including connecting pipe (51), lead wire aviation plug (2) are equipped with tubulose joint (21), connecting pipe (51) sliding connection tubulose joint (21), lead wire aviation plug (2) one end outside can be dismantled and connect first positioning disk (22), connection second positioning disk (52) can be dismantled in connecting pipe (51) outside, first positioning disk (22) with second positioning disk (52) are fixed through bolt (53), connecting pipe (51) one end can be dismantled and connect set nut (54), cable sleeve (4) one end welded connection screw cable sleeve (55), screw cable sleeve (55) screwed connection set nut (54).

2. A terminal plug and cable bushing connection as defined in claim 1, wherein: and the reinforcing ribs (41) on the outer side of the cable sleeve (4) are spirally arranged, and the reinforcing ribs (41) are spirally arranged.

3. A terminal plug and cable bushing connection as defined in claim 1, wherein: the positioning nut (54) is formed by fixing an annular ring and an internal threaded pipe, and the internal wall of the internal threaded pipe is in threaded connection with an external thread structure at one end of a threaded cable sleeve (55).