Self-delay repair terminal

Abstract

The utility model discloses a self-delay repair terminal, which comprises a conducting rod; the intermediate joint main body is used for connecting the conducting rod and a to-be-connected cable, a stress cone is arranged in the intermediate joint main body, and the stress cone is sleeved on the to-be-connected cable; a to-be-connected cable penetrates through the fixing support, and the fixing support is provided with an insulating supporting structure. The connecting column is connected with one end, far away from the intermediate joint main body, of the conducting rod and is used for connecting an overhead line; the isolation sealing assembly is connected to the connecting column in a sleeving mode and surrounds the conducting rod and the middle connector body; according to the utility model, the extension of a cable can be realized by using the conducting rod, and then the connection with a cable to be connected and an overhead line can be completed through the intermediate joint main body, the conducting rod and the connecting column, thereby completing the first-aid repair; and meanwhile, an insulating agent or insulating gas does not need to be filled into the terminal, so that the convenience and the efficiency of terminal installation are improved.

Description

Technical Field

[0001] The utility model relates to the field of cable terminals, in particular to a self-extending repair terminal. Background Art

[0002] With the development of urbanization, the total amount of cable lines continues to expand, and failures in high-voltage cable systems in various places also occur from time to time. Cable line failures affect the power supply quality of residents and enterprises. Once a cable fails, it is easy to cause a large-scale power outage, and the line power supply cannot be restored immediately. The difficulty of cable repair is also very great. At present, the timeliness of repair has attracted much attention in the repair of cable lines. Due to the complexity of the cable system structure, when there is not enough length reserved for the repair cable, or the cable trench collapses, the difficulty of repairing the cable line will be further increased, and the time spent on repair will also increase. Therefore, in order to ensure the efficient and stable operation of the power system and meet the higher requirements of repair needs, it has become an issue that urgently needs a solution. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a self-extending repair terminal, which can extend the cable and meet more complex repair needs.

[0004] The self-extending repair terminal according to the embodiment of the utility model includes:

[0005] Conductive rod;

[0006] An intermediate joint body is used to connect the conductive rod and the cable to be connected, wherein the intermediate joint body is provided with a stress cone, and the stress cone is sleeved on the cable to be connected; the cable to be connected passes through a fixing bracket, and an insulating support structure is provided on the fixing bracket;

[0007] A connecting column connected to an end of the conductive rod away from the middle joint body, the connecting column being used to connect an overhead line;

[0008] An isolation sealing component is sleeved on the connection column and surrounds the conductive rod and the middle joint body; the isolation sealing component is supported by the insulating support structure.

[0009] The self-extending repair terminal according to the embodiment of the utility model has at least the following beneficial effects:

[0010] Conductive rods can be used to extend the cable, and then the cable to be connected can be connected to the overhead line through the intermediate joint body, conductive rods, and connecting columns to complete the emergency repair; at the same time, the self-extending repair terminal of the utility model embodiment uses stress cones to improve the electric field, reducing the concentration of electric power, and the isolation of the entire self-extending repair terminal can be achieved through the isolation sealing component, and there is no need to fill the terminal with insulating agent or insulating gas, thereby improving the convenience and efficiency of terminal installation.

[0011] According to some embodiments of the present invention, the self-extending repair terminal further includes a shielding cover, which is sleeved on the connecting column and located on the top of the isolation sealing assembly.

[0012] According to some embodiments of the present invention, the intermediate joint body further has a built-in shielding tube, and the shielding tube is sleeved on the cable to be connected.

[0013] According to some embodiments of the present utility model, the isolation sealing assembly includes:

[0014] A composite pipe sleeve is sleeved on the connecting column and surrounds the conductive rod and the intermediate joint body, and the composite pipe sleeve is supported by the insulating support structure;

[0015] The top sealing member is sleeved on the connecting column to complete the sealing of the top of the composite pipe sleeve.

[0016] According to some embodiments of the utility model, the top seal includes a top cover, which is sleeved on the connecting column and fixed on the top of the composite pipe sleeve, and a through hole is provided at the center of the top cover; the connecting column is connected to the connecting column through the through hole, and the through hole is sealed.

[0017] According to some embodiments of the present utility model, a sealing ring is provided between the connecting column and the top cover.

[0018] According to some embodiments of the present utility model, one end of the conductive rod away from the middle joint body is connected to the connecting column through a spring.

[0019] According to some embodiments of the present invention, the self-extending repair terminal further includes a stress ring disposed in the composite pipe sleeve, and the stress ring is sleeved on the cable to be connected.

[0020] According to some embodiments of the present invention, the self-extending repair terminal further comprises a tail tube which is sleeved on the cable to be connected, and the tail tube is fixed at the lower end of the composite sleeve.

[0021] According to some embodiments of the present invention, the insulating support structure includes a plurality of supporting insulators all disposed on the fixing bracket.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 The present invention is a schematic cross-sectional structural diagram of a self-extending repair terminal according to an embodiment of the present invention.

[0025] Figure Number:

[0026] Fixed bracket 110,

[0027] Cable to be connected 200,

[0028] Conductive rod 310 , connecting column 320 , middle joint body 330 , composite pipe sleeve 340 , top cover 350 , stress ring 360 , tail pipe 370 , supporting insulator 380 , shielding cover 390 . DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] The utility model proposes a self-extending repair terminal, which includes: a conductive rod 310, an intermediate joint body 330, a connecting column 320 and an isolation sealing assembly;

[0034] Conductive rod 310;

[0035] The intermediate joint body 330 is used to connect the conductive rod 310 and the cable 200 to be connected. The intermediate joint body 330 has a stress cone built therein, and the stress cone is sleeved on the cable 200 to be connected. The cable 200 to be connected passes through the fixing bracket 110, and the fixing bracket 110 is provided with an insulating support structure.

[0036] A connecting column 320 connected to an end of the conductive rod 310 away from the middle joint body 330, and the connecting column 320 is used to connect the overhead line;

[0037] The isolation sealing component is sleeved on the connection column 320 and surrounds the conductive rod 310 and the middle joint body 330; the isolation sealing component is supported by the insulating support structure.

[0038] refer to Figure 1 The fixing bracket 110 is the installation base, and the cable 200 to be connected can pass through the fixing bracket 110 from bottom to top. Before installing the cable terminal, the outer protective layer of the top of the cable 200 to be connected will be removed, and then heated and straightened, and then the insulation layer and semi-conductive layer of the cable 200 to be connected will be stripped to expose the conductor, and the intermediate joint body 330 will be sleeved on the cable 200 to be connected, and then the intermediate joint body 330 will be used to complete the connection between the conductive rod 310 and the cable 200 to be connected, and the other end of the conductive rod 310 can be connected to the connecting column 320, and the connecting column 320 can be used to connect to the overhead line after the entire terminal is installed to complete the emergency repair, wherein the conductive rod 310 plays the role of extending the cable, which can solve the problem of insufficient length of the cable 200 to be connected. After the conductive rod 310 is connected to the connecting column 320, the isolation sealing assembly can be mounted on the cable 200 to be connected, the conductive rod 310 and the connecting column 320, and an internal insulation state is formed and the connection column 320 is isolated from the outside world. At this time, only the end of the connecting column 320 away from the conductive rod 310 will extend from the isolation sealing assembly, which is convenient for the subsequent connection of the overhead line. The entire isolation sealing assembly is supported by a supporting insulation structure arranged on the fixed bracket 110 to ensure the stability of the entire terminal body.

[0039] The self-extending repair terminal of the embodiment of the utility model can extend the cable by using the conductive rod 310, and then can complete the connection with the cable 200 to be connected and the overhead line through the intermediate joint body 330, the conductive rod 310, and the connecting column 320 to complete the emergency repair; at the same time, the self-extending repair terminal of the embodiment of the utility model uses a stress cone to improve the electric field, reduce the concentration of electric power, and can achieve isolation of the entire self-extending repair terminal through the isolation sealing component, and there is no need to fill the terminal with insulating agent or insulating gas, thereby improving the convenience and efficiency of terminal installation.

[0040] refer to Figure 1 In some embodiments, the self-extending repair terminal further includes a shielding cover 390, which is sleeved on the connecting column 320 and located on the top of the isolation sealing assembly. The shielding cover 390 is installed on the top of the isolation sealing assembly, and can be specifically set on the top of the gland. The shielding cover 390 can shield the internal structure and protect the internal structure from corrosion.

[0041] In some embodiments, the intermediate joint body 330 is also built with a shielding tube, which is sleeved on the cable to be connected 200. The shielding tube is also sleeved on the cable to be connected 200, and the conductor part of the cable to be connected 200 will be within the range of the shielding tube, so that the electric field can be evenly distributed, the discharge between the metal parts can be shielded, and the breakdown can be prevented.

[0042] In some embodiments, the isolation seal assembly includes a composite sleeve 340 and a top seal;

[0043] The composite pipe sleeve 340 is sleeved on the connecting column 320 and surrounds the conductive rod 310 and the intermediate joint body 330. The composite pipe sleeve 340 is supported by an insulating support structure.

[0044] The top sealing member is sleeved on the connecting column 320 to complete the sealing of the top of the composite pipe sleeve 340 .

[0045] After completing the connection between the conductive rod 310 and the connecting column 320, install the supporting insulator 380 on the fixed bracket 110, and then hoist the composite pipe sleeve 340 onto the supporting insulator 380 and fix it by bolts; finally, install the cable 200 to be connected into the composite pipe sleeve 340, and extend the top connecting column 320 out of the top of the composite pipe sleeve 340. After the top seal and the connecting column 320 are subsequently installed, the composite pipe sleeve 340 can achieve the function of air separation.

[0046] In some embodiments, the top seal includes a top cover 350, which is sleeved on the connecting column 320 and fixed on the top of the composite sleeve 340. A through hole is provided at the center of the top cover 350; the connecting columns 320 are connected to each other through the through hole, and the through hole is sealed. After the top cover 350 and the connecting column 320 are matched, the top of the composite sleeve can be sealed.

[0047] In some embodiments, a sealing ring is provided between the connecting column 320 and the top cover 350. The sealing ring can better seal the space inside the composite casing.

[0048] In some embodiments, one end of the conductive rod 310 away from the middle joint body 330 is connected to the connecting column 320 through a spring. The connection is completed using a spring, which can provide sufficient extrusion force, and even if there is a slight displacement between the connecting parts, the stability of the connection can still be guaranteed.

[0049] In some embodiments, the self-extending repair terminal further includes a stress ring 360 disposed in the composite sleeve 340, and the stress ring 360 is sleeved on the to-be-connected cable 200. The setting of the stress ring 360 can provide certain stress support, and in this embodiment, a metal stress ring 360 can be directly used.

[0050] In some embodiments, the self-extending repair terminal further includes a tail tube 370 which is sleeved on the cable 200 to be connected, and the tail tube 370 is fixed at the lower end of the composite pipe sleeve 340. The tail tube 370 is sleeved on the cable 200 to be connected in advance, just like the intermediate joint body 330. After all the components of the terminal are connected, the cable 200 to be connected needs to be corrected for the last time to ensure that the cable 200 to be connected is at the center of the tail tube 370. After confirming that it is correct, the tail tube 370 is fixed to the bottom of the composite pipe sleeve 340 with bolts to complete all installations. The tail tube 370 can also protect the cable and the terminal.

[0051] In some embodiments, the insulating support structure includes a plurality of supporting insulators 380 all disposed on the fixing bracket 110. The insulating support structure can directly use the more common supporting insulators 380, which are mature products with wide selection and low price, and can meet the insulation requirements, and are suitable for industrial promotion.

[0052] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A self-extending repair terminal, characterized in that: include: Conductive rod; An intermediate joint body is used to connect the conductive rod and the cable to be connected, wherein the intermediate joint body is provided with a stress cone, and the stress cone is sleeved on the cable to be connected; the cable to be connected passes through a fixing bracket, and an insulating support structure is provided on the fixing bracket; A connecting column connected to an end of the conductive rod away from the middle joint body, the connecting column being used to connect an overhead line; An isolation sealing component is sleeved on the connection column and surrounds the conductive rod and the middle joint body; the isolation sealing component is supported by the insulating support structure.

2. The self-extending repair terminal according to claim 1, characterized in that: The self-extending repair terminal also includes a shielding cover, which is sleeved on the connecting column and located on the top of the isolation sealing component.

3. The self-extending repair terminal according to claim 1, characterized in that: The intermediate joint body also has a built-in shielding tube, and the shielding tube is sleeved on the cable to be connected.

4. The self-extending repair terminal according to claim 1, characterized in that: The isolation seal assembly comprises: A composite pipe sleeve is sleeved on the connecting column and surrounds the conductive rod and the intermediate joint body, and the composite pipe sleeve is supported by the insulating support structure; The top sealing member is sleeved on the connecting column to complete the sealing of the top of the composite pipe sleeve.

5. The self-extending repair terminal according to claim 4, characterized in that: The top seal comprises a top cover, which is sleeved on the connecting column and fixed on the top of the composite pipe sleeve. A through hole is arranged at the center of the top cover. The connecting columns are connected with each other through the through hole, and the through hole is sealed.

6. The self-extending repair terminal according to claim 5, characterized in that: A sealing ring is arranged between the connecting column and the top cover.

7. The self-extending repair terminal according to claim 1 or 5, characterized in that: One end of the conductive rod away from the middle joint body is connected to the connecting column through a spring.

8. The self-extending repair terminal according to claim 4, characterized in that: The self-extending repair terminal also includes a stress ring arranged in the composite pipe sleeve, and the stress ring is sleeved on the cable to be connected.

9. The self-extending repair terminal according to claim 4, characterized in that: The self-extending repair terminal also includes a tail tube arranged on the cable to be connected, and the tail tube is fixed at the lower end of the composite sleeve.

10. The self-extending repair terminal according to claim 1, characterized in that: The insulating support structure includes a plurality of supporting insulators which are all arranged on the fixing bracket.

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