CN217282157U

CN217282157U - Outdoor insulation terminal joint of power engineering high-voltage cable

Info

Publication number: CN217282157U
Application number: CN202220325374.0U
Authority: CN
Inventors: 陈杰克
Original assignee: Hubei Haoyi Power Engineering Co ltd
Current assignee: Hubei Haoyi Power Engineering Co ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-08-23
Anticipated expiration: 2032-02-18

Abstract

The utility model belongs to the technical field of cable termination connects, a power engineering high tension cable outdoor insulation terminal joint is disclosed, including pyrocondensation branch cover, the top of pyrocondensation branch cover is equipped with three stress tube of group, inboard between the stress tube of three group is equipped with the effect piece, the central point that the effect piece is located pyrocondensation branch cover top puts, the outside of effect piece is equipped with three set cover and establishes the piece, three set cover establish the piece and are located the outer wall of three stress tube of group respectively, and the inner wall that three set cover established the piece cup joints with the outer wall activity of three stress tube of group respectively, three set cover establish the piece towards the equal fixedly connected with linking arm of one side outer wall of effect piece. The action block is arranged above the thermal shrinkage support sleeve, so that the combined action of the three sleeve-arranged blocks and the connecting arm is facilitated, the outer walls of the three groups of stress tubes are effectively connected, and good stable support benefits can be achieved when the three groups of stress tubes are dispersed and used by utilizing the mutual matching action of the movable sleeve cavity, the bottom column and the positioning bolt.

Description

Outdoor insulation terminal joint of power engineering high-voltage cable

Technical Field

The application relates to the technical field of cable terminal connectors, in particular to an outdoor insulation terminal connector for a high-voltage cable in power engineering.

Background

The cable terminal is used for being assembled at the head end and the tail end of a cable circuit and used for completing a device connected with other electrical equipment, and comprises an outdoor terminal, an indoor terminal, an elbow-shaped terminal and the like, the cable terminal is used for uniformly distributing an electric field at the tail end of the cable and realizing effective control of electric stress, and the electric stress control refers to control of the electric field distribution and the electric field intensity.

In prior art to the used outdoor insulation of high tension cable of electric power engineering connect, though can realize good electric power circulation and wire guard action, present terminal joint is in the use, there is the comparatively single problem of structural performance, make it to carry out effectual firm supporting role to cable terminal overhead stress tube after dispersing, when lead to stress tube to take place the problem of damage when receiving external force influence easily, cause the not hard up of stress tube bottom and junction production easily, the fracture phenomenon.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the application provides an outdoor insulation terminal joint of a high-voltage cable in power engineering.

The technical scheme provided by the application is as follows:

an outdoor insulation terminal joint of a high-voltage cable in electric power engineering comprises a thermal shrinkage support sleeve, wherein three groups of stress tubes are arranged at the top of the thermal shrinkage support sleeve, action blocks are arranged on the inner sides among the three groups of stress tubes, the action blocks are positioned at the central position above the thermal shrinkage support sleeve, three groups of sleeve establishment blocks are arranged on the outer side of the action blocks, the three groups of sleeve establishment blocks are respectively positioned on the outer walls of the three groups of stress tubes, the inner walls of the three groups of sleeve establishment blocks are respectively movably sleeved with the outer walls of the three groups of stress tubes, the outer wall of one side, facing the action blocks, of the three groups of sleeve establishment blocks is fixedly connected with a connecting arm, one end of the three groups of connecting arms is fixedly connected with the side wall of the action blocks, a movable sleeve cavity is fixedly connected with the bottom of the action blocks, a bottom column is movably sleeved on the inner side of the movable sleeve cavity, the bottom of the bottom column penetrates through the bottom of the movable sleeve cavity and is fixedly connected with the top of the thermal shrinkage support sleeve, a positioning bolt is screwed in the inner cavity on one side of the bottom of the movable sleeve cavity, one end of the positioning bolt is attached to the outer wall of the bottom column.

Through the technical scheme, the thermal shrinkage support sleeve can be used for connecting the stress tube and simultaneously carrying the structure arranged on the stress tube.

Furthermore, the action block is in a regular triangle block structure, and the corners of the three side ends of the action block are designed in a fillet shape.

Through the technical scheme, the effect of the intermediate medium under the effect of stably supporting the stress tube is achieved by utilizing the arranged action block.

Furthermore, the movable sleeve cavity is of a prismatic hollow cylinder structure, the movable sleeve cavity and the bottom column are both located at the center of the joint of the heat-shrinkable support sleeve and the action block, and a hexagonal groove hole is formed in an inner cavity of one end, away from the bottom column, of the positioning bolt.

Through the technical scheme, the adjusting function of the vertical position of the action block can be indirectly realized by utilizing the matching of the arranged movable sleeve cavity and the bottom column.

Further, three groups of stress tubes are evenly distributed on the periphery of the top of the thermal shrinkage support sleeve, umbrella skirts are arranged on the outer walls of the three groups of stress tubes, the umbrella skirts are located above the sleeve building blocks, a conducting head is arranged above the umbrella skirts, and the conducting head is located at the top end of the stress tubes.

Through the technical scheme, the whole electric power circulation benefit can be realized while the whole electric power circulation device is conveniently connected with external equipment by utilizing the arranged conduction head.

Further, the inner cavity of the bottom end of the thermal shrinkage branch sleeve is fixedly sleeved with a cable body, and the top end of the cable body and the bottom ends of the three groups of stress tubes are electrically connected with each other on the inner side of the thermal shrinkage branch sleeve through a conducting wire.

Through the technical scheme, the cable body can be connected with the inner lead of the stress tube, so that the stable output work of the whole power can be ensured.

Further, the bottom fixedly connected with of pyrocondensation branch cover extends the chamber, extend the chamber and be located the outside of cable body, and extend the inner wall fixed mounting in chamber and have the sealing washer, the inner wall of sealing washer is laminated with the outer wall of cable body mutually.

Through the technical scheme, the extending cavity and the sealing ring are utilized to play a good role in protecting the joint of the cable body and the thermal shrinkage support sleeve.

To sum up, the application comprises the following beneficial technical effects:

through the pyrocondensation branch cover that sets up, when being favorable to bearing the structure of establishing on it, be convenient for realize the good intercommunication effect of cable body and three stress tube of group, through the effect piece of establishing above the pyrocondensation branch cover, be favorable to cooperating to establish under the combined action of three set cover establishing pieces and linking arm, when realizing effectively the connection to three stress tube outer walls of group, utilize the movable sleeve chamber of establishing, the sill pillar, under positioning bolt's the mutually supporting effect, can play good firm supporting benefit when dispersing and using three stress tube of group, thereby prevent under the influence of the random atress of three stress tube of group, the body damage of production and with the not hard up of pyrocondensation branch cover junction, the fracture problem, and then prevent to influence whole terminal connection's power transmission stability and security.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 of the present application;

fig. 3 is a schematic view of a bottom end structure of the heat-shrinkable support sleeve of the present application.

The reference numbers in the figures illustrate:

1. a heat-shrinkable support sleeve; 2. a stress tube; 3. an action block; 4. sleeving a block; 5. a connecting arm; 6. a movable sleeve cavity; 7. a bottom pillar; 8. positioning the bolt; 9. a hexagonal slot; 10. an umbrella skirt; 11. a conducting head; 12. a cable body; 13. an extension cavity; 14. and (5) sealing rings.

Detailed Description

The technical solution in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments, and all other embodiments obtained by those of ordinary skill in the art without any inventive work based on the embodiments in the present application belong to the protection scope of the present application.

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

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be 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 application can be understood in a specific case by those of ordinary skill in the art.

The embodiment is as follows:

the present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses an outdoor insulation terminal joint of a high-voltage cable in electric power engineering, please refer to fig. 1 and fig. 2, which comprises a thermal shrinkage support sleeve 1, three groups of stress tubes 2 are arranged at the top of the thermal shrinkage support sleeve 1, an action block 3 is arranged at the inner side between the three groups of stress tubes 2, the action block 3 is positioned at the central position above the thermal shrinkage support sleeve 1, the action block 3 is in a regular triangle block structure, the three side end angles of the action block 3 are all in a round angle design, three sleeving blocks 4 are arranged at the outer side of the action block 3, the three sleeving blocks 4 are respectively positioned at the outer walls of the three groups of stress tubes 2, the inner walls of the three sleeving blocks 4 are respectively movably sleeved with the outer walls of the three groups of stress tubes 2, the outer wall of one side of the three sleeving blocks 4 facing the action block 3 is fixedly connected with a connecting arm 5, one end of the three groups of connecting arms 5 is fixedly connected with the side wall of the action block 3, a movable sleeve cavity 6 is fixedly connected with the bottom of the action block 3, a bottom column 7 is movably sleeved on the inner side of the movable sleeve cavity 6, the bottom of the bottom column 7 penetrates through the bottom of the movable sleeve cavity 6 and is fixedly connected with the top of the heat-shrinkable support sleeve 1, a positioning bolt 8 is screwed in an inner cavity on one side of the bottom of the movable sleeve cavity 6, one end of the positioning bolt 8 is attached to the outer wall of the bottom column 7, the movable sleeve cavity 6 is of a prism-shaped hollow cylinder structure, the movable sleeve cavity 6 and the bottom column 7 are both positioned at the central position of the joint of the heat-shrinkable support sleeve 1 and the action block 3, a hexagonal slotted hole 9 is formed in an inner cavity at one end of the positioning bolt 8, when the positioning bolt 8 needs to be screwed, an external hexagonal rod body part can be matched to play a good screwing action on the positioning bolt, so that when the positioning bolt 8 is operated, the positioning bolt 8 is prevented from being influenced by the shielding of the bottom end of the stress tube 2, the problem that the wrench is difficult to effectively act on the device is generated, and the flexibility and the portability of the device in the whole use are improved.

Referring to fig. 1 and 3, three groups of stress tubes 2 are uniformly distributed on the top of a thermal shrinkage support sleeve 1 in a circumferential manner, the outer walls of the three groups of stress tubes 2 are all provided with an umbrella skirt 10, the umbrella skirt 10 is positioned above a sleeve setting block 4, a conducting head 11 is arranged above the umbrella skirt 10, the conducting head 11 is positioned at the top end of the stress tube 2, an inner cavity at the bottom end of the thermal shrinkage support sleeve 1 is fixedly sleeved with a cable body 12, the top end of the cable body 12 and the bottom ends of the three groups of stress tubes 2 are electrically connected at the inner side of the thermal shrinkage support sleeve 1 through conducting wires, the bottom of the thermal shrinkage support sleeve 1 is fixedly connected with an extension cavity 13, the extension cavity 13 is positioned at the outer side of the cable body 12, a sealing ring 14 is fixedly installed on the inner wall of the extension cavity 13, the inner wall of the sealing ring 14 is attached to the outer wall of the cable body 12, the sealing ring 14 is arranged on the extension cavity 13, and is beneficial to the fixed connection of the bottom of the thermal shrinkage support sleeve 1 and matched with the sealing ring 14 arranged on the inner wall, play the good sealed protection benefit to cable body 12 and pyrocondensation branch cover 1 junction to prevent that whole terminal joint from when outdoor use, producing the random problem of weing of cable body 12 and pyrocondensation branch cover 1 junction, and then prevent to produce negative effects to holistic power transmission work.

The implementation principle of the outdoor insulation terminal joint of the power engineering high-voltage cable is as follows: when the device is used, the whole device is in a complete assembly state, meanwhile, the power communication work with the external equipment connecting end can be realized by utilizing the conducting heads 11 arranged at the top ends of the three groups of stress tubes 2, when the three groups of stress tubes 2 are in a limit of connection with the outside, the positioning bolt 8 can be screwed by utilizing the hexagonal slotted hole 9, one end of the positioning bolt 8 is separated from the fastening action on the outer wall of the bottom column 7, so that the upper and lower position adjustment of the action block 3 can be realized by the telescopic action between the movable sleeve cavity 6 and the bottom column 7, the spreading angle of the three groups of stress tubes 2 can be changed, the problem of limited connection can be further adjusted, and simultaneously, the three groups of sleeve blocks 4 respectively carry out movable sleeve connection and moving work on the outer walls of the three groups of stress tubes 2, the bottom ends of the three groups of stress tubes 2 and the top end of the thermal shrinkage support sleeve 1 generate a twisting deformation phenomenon, and the positioning bolt 8 can be reset after the adjustment is completed, in the whole use, through activity cover chamber 6, under the positioning action of sill pillar 7 and positioning bolt 8 to effect piece 3, and then the

cooperation piece

3, 4 and linking arm 5 are established to the cover when the stress tube 2 is clinched, can prevent to produce the problem that stress tube 2 swung at will under the influence of whole atress, thereby when preventing that the 2 bodies of stress tube from producing the damage, prevent 2 bottoms of stress tube and the great not hard up and the fracture problem that 1 junction of pyrocondensation branch cover produced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an outdoor insulating terminal joint of electric power engineering high tension cable, includes pyrocondensation branch cover (1), its characterized in that: the top of the thermal shrinkage support sleeve (1) is provided with three groups of stress tubes (2), the inner sides among the three groups of stress tubes (2) are provided with action blocks (3), the action blocks (3) are positioned at the central position above the thermal shrinkage support sleeve (1), the outer sides of the action blocks (3) are provided with three groups of sleeve establishing blocks (4), the three groups of sleeve establishing blocks (4) are respectively positioned on the outer walls of the three groups of stress tubes (2), the inner walls of the three groups of sleeve establishing blocks (4) are respectively movably sleeved with the outer walls of the three groups of stress tubes (2), the outer walls of one sides of the three groups of sleeve establishing blocks (4) facing the action blocks (3) are respectively and fixedly connected with connecting arms (5), one ends of the three groups of connecting arms (5) are respectively and fixedly connected with the side walls of the action blocks (3), the bottom of the action blocks (3) is fixedly connected with a movable sleeve cavity (6), and the inner side of the movable sleeve cavity (6) is movably sleeved with a bottom column (7), the bottom of foundation pillar (7) runs through the bottom of activity cover chamber (6) and with the top fixed connection of pyrocondensation branch cover (1), the inner chamber spiro union of activity cover chamber (6) bottom one side has positioning bolt (8), the one end of positioning bolt (8) is laminated with the outer wall of foundation pillar (7) mutually.

2. The outdoor insulated terminal joint of high-voltage cable for electric power engineering of claim 1, wherein: the action block (3) is in a regular triangle block structure, and the corners of the three sides of the action block (3) are designed in a fillet shape.

3. An outdoor insulated termination joint for high voltage cables for electrical engineering according to claim 1, characterized in that: the movable sleeve cavity (6) is of a prismatic hollow cylinder structure, the movable sleeve cavity (6) and the bottom column (7) are both located at the center of the joint of the heat-shrinkable support sleeve (1) and the action block (3), and a hexagonal groove hole (9) is formed in an inner cavity of one end, deviating from the bottom column (7), of the positioning bolt (8).

4. The outdoor insulated terminal joint of high-voltage cable for electric power engineering of claim 1, wherein: three groups stress tube (2) are circumference evenly distributed at the top of pyrocondensation branch cover (1), and the outer wall of three group stress tube (2) all is equipped with full skirt (10), full skirt (10) are located the top of overlapping establishing piece (4), and the top of full skirt (10) is equipped with leads to head (11), lead to the top position that head (11) are located stress tube (2).

5. An outdoor insulated termination joint for high voltage cables for electrical engineering according to claim 1, characterized in that: the cable is characterized in that a cable body (12) is fixedly sleeved in an inner cavity at the bottom end of the thermal shrinkage branch sleeve (1), and the top end of the cable body (12) and the bottom ends of the three groups of stress tubes (2) are electrically connected with the inner side of the thermal shrinkage branch sleeve (1) through conducting wires.

6. An outdoor insulated termination joint for high voltage cables for electrical engineering according to claim 5, characterized in that: the bottom fixedly connected with of pyrocondensation branch cover (1) extends chamber (13), extend chamber (13) and be located the outside of cable body (12), and extend the inner wall fixed mounting in chamber (13) and have sealing washer (14), the inner wall of sealing washer (14) is laminated with the outer wall of cable body (12) mutually.