CN112713570A

CN112713570A - Lengthened quick first-aid repair intermediate joint

Info

Publication number: CN112713570A
Application number: CN202011478383.5A
Authority: CN
Inventors: 柯德刚; 王体才; 杜成龙
Original assignee: Shanghai Yongjin Electric Technology Co ltd
Current assignee: Shanghai Yongjin Electric Technology Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-04-27

Abstract

The invention discloses an elongated intermediate joint for rapid first-aid repair. It includes extension stack shell, auxiliary joint, epoxy and integral type electrode, the integral type electrode arrange in the extension stack shell, the epoxy arrange in on the both ends of integral type electrode, auxiliary joint arrange in the both ends of extension stack shell on, the epoxy arrange in between auxiliary joint and the extension stack shell, the epoxy on be equipped with the through-hole, auxiliary joint pass through the through-hole on the epoxy and constitute a cavity with extension stack shell intercommunication, the cavity in be equipped with liquid insulating oil. The invention has the beneficial effects that: the problem of cable joint trouble back, cable body not long enough is solved, this intermediate head can realize that one set of product replaces two sets of cable (salvagees) intermediate head's of tradition purpose, and is sealed effectual, and protection cable joint is not impaired, and it is convenient to fix a position the installation, and liquid insulating oil can be retrieved and is recycled, has improved this intermediate head's installation reliability and installation convenience.

Description

Lengthened quick first-aid repair intermediate joint

Technical Field

The invention relates to the technical field related to cable rush-repair connection, in particular to an elongated intermediate joint for rapid rush-repair.

Background

At present, the cabling rate of each city is higher and higher, and the corresponding cable intermediate joint faults are more frequent. In addition, in some cities, in order to pursue the tidiness and beauty of cable trenches and cable tunnels, when high-voltage cables are designed and laid, a cable repair allowance is not always left. Therefore, when the cable intermediate joint breaks down, the cable is not long enough, so that the first-aid repair cannot be completed immediately, and the time is delayed. But also requires the manufacture of 2 sets of cable intermediate connectors (or two sets of quick-recovery intermediate connectors) to recover.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides the lengthened quick first-aid repair intermediate joint which can solve the problem that a cable body is not long enough.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an elongated rapid repair intermediate head, includes extension stack shell, auxiliary joint, epoxy and integral type electrode, the integral type electrode arrange in the extension stack shell, the epoxy arrange in on the both ends of integral type electrode, auxiliary joint arrange in on the both ends of extension stack shell, the epoxy arrange in between auxiliary joint and the extension stack shell, the epoxy on be equipped with the through-hole, auxiliary joint pass through the through-hole on the epoxy and constitute a cavity with extension stack shell intercommunication, the cavity in be equipped with liquid insulating oil.

During the use, install two cable joint respectively on the auxiliary joint, later with integral type electrode connection between two cable joint, and the integral type electrode passes through the epoxy and installs on extension stack body, pack liquid insulating oil in the cavity that auxiliary joint and extension stack body constitute and protect the integral type electrode, also can protect two cable joint, and extension stack body and integral type electrode can select suitable length according to the clearance between two cable joint, also can adjust two cable joint according to extension stack body and integral type electrode and make the connection just, solve cable joint trouble back through above-mentioned structural design, the problem that the cable body is not long enough, this intermediate joint can realize that one set of product replaces two sets of traditional cable (salvagees) intermediate joint's purpose in the past.

Preferably, the lengthened cylinder body is cylindrical, first flange plates are arranged at two ends of the lengthened cylinder body, a first annular groove is formed in each first flange plate, a second flange plate matched with the first flange plate is arranged at the connecting end of the auxiliary connector and the lengthened cylinder body, a second annular groove matched with the first annular groove is formed in each second flange plate, and the epoxy piece is arranged in an area formed by the first annular groove and the second annular groove. Through the design of first ring channel and second ring channel, can make things convenient for the installation location of epoxy.

Preferably, a first annular groove is formed in the second flange plate and arranged on the outer side of the second annular groove, and a first sealing ring is arranged in the first annular groove. Through the design of first annular groove and first sealing washer, ensure the sealing connection between auxiliary joint and the extension stack shell, better protection cable joint is not impaired.

Preferably, the auxiliary joint comprises an auxiliary cylinder body and an auxiliary cover plate, the auxiliary cylinder body is cylindrical, the auxiliary cover plate is arranged on one end face of the auxiliary cylinder body, the auxiliary cylinder body is connected with the auxiliary cover plate through a flange in a sealing mode, a positioning pipe is arranged on the auxiliary cover plate and is arranged in the middle of the auxiliary cover plate, the positioning pipe is communicated with the auxiliary cover plate, and a sealing layer is arranged in the positioning pipe. Through the design of registration arm, can guide the cable joint to enter into the auxiliary joint on the one hand, sealing connection between cable joint and the registration arm can be ensured to the design of sealing layer simultaneously, prevents the seepage of liquid insulating oil.

As preferred, the side top of supplementary stack shell is equipped with annotates the liquid mouth, annotate the liquid mouth on be equipped with the third flange dish, the liquid mouth on be equipped with the third flange dish assorted annotate the liquid apron, the third flange dish on be equipped with the second annular groove, the second annular groove in be equipped with the second sealing washer, annotate the liquid apron through second sealing washer and annotate the third flange dish sealing connection of liquid mouth, the side below of supplementary stack shell is equipped with the liquid outlet, the liquid outlet on be equipped with control flap. The sealing performance of the liquid injection port is ensured through the structural design on the liquid injection port; and through the design of control valve on the liquid outlet, conveniently to the recovery of liquid insulating oil recycle, guarantee the sealing performance in the cavity simultaneously.

Preferably, the epoxy part is circular, a positioning hole is formed in the middle of the epoxy part, limiting pipes are arranged on the left side surface and the right side surface of the epoxy part and at positions where the positioning holes are located, the diameter of each limiting pipe is consistent with that of each positioning hole, the limiting pipes and the epoxy part are integrally formed, the through holes are arranged on the epoxy part and located on the outer side of each limiting pipe, and the through holes are provided with a plurality of parts and are evenly distributed on the epoxy part by taking the positioning holes as centers. Design through spacing pipe is used for the position of location integral type electrode, prevents that the integral type electrode from taking place relative displacement and leading to cable joint unable and integral type electrode butt joint, has improved this intermediate head's installation reliability and installation convenience.

Preferably, the integrated electrode comprises an electrode tip and an electrode connector, the electrode tip is mounted at two ends of the electrode connector and integrally formed with the electrode connector, one end of the electrode tip is connected with one end of the electrode connector, a cable groove is formed in the other end of the electrode tip, a high-voltage electrode joint is arranged in the cable groove, a cable head groove is formed in the high-voltage electrode joint, the electrode connector is arranged in the lengthened cylinder body, and the electrode tip is mounted on the epoxy piece. Through the design of cable recess and high voltage electrode joint, can conveniently lead cable joint to in the cable recess and with high voltage electrode joint phase-match, improved the location precision between cable joint and the integral type electrode greatly to this intermediate head's installation effectiveness has been improved.

Preferably, the cable groove comprises an opening section, a middle section and a bottom section, the opening section and the bottom section are cylindrical, the middle section is in a circular truncated cone shape, the diameter of the opening section is larger than that of the bottom section, the diameter of the middle section is gradually reduced from the section close to the opening section to the section close to the bottom section, and the high-voltage electrode connector is installed in the bottom section of the cable groove. Through the shape design of cable recess, can conveniently lead cable joint to cable recess inside, simultaneously with high voltage electrode joint phase-match.

Preferably, the outer side of the electrode tip is provided with an annular boss at a position corresponding to the bottom section of the cable groove, a limiting bolt is arranged at the joint of the bottom section of the cable groove and the middle section at one end of the annular boss, and the limiting bolt is in threaded connection with the electrode tip. Through the structural design of annular boss and spacing bolt, the position of location integral type electrode that can be better is fixed spacing bolt in the position department at annular boss place, prevents rocking about the integral type electrode to ensure cable joint's reliable connection.

Preferably, the high voltage electrode joint include base and adapter, pedestal mounting in the bottom section of cable recess, the outside of base is equipped with a plurality of third annular grooves, third annular groove in be equipped with the third sealing washer, the base bottom section sealing connection through the third sealing washer in the third annular groove and cable recess, the adapter install on the base and be integrated into one piece with the base, the diameter of base is greater than the diameter of adapter, cable head groove arrange in on the adapter, the adapter in and arrange the bottom in cable head groove and be equipped with conical recess. Through the structural design of the base, the position of the base can be better positioned while the reliable connection between the base and the electric connector is ensured, and the influence on the matching connection of the cable connector due to the relative displacement of the position of the base is prevented; through the design of conical recess for when the cable joint unevenness, can guide and enter into conical recess, ensure that whole cable joint is connected with the reliable cooperation in cable head groove.

The invention has the beneficial effects that: the problem of cable joint trouble back, cable body not long enough is solved, this intermediate head can realize that one set of product replaces two sets of cable (salvagees) intermediate head's of tradition purpose, and is sealed effectual, and protection cable joint is not impaired, and it is convenient to fix a position the installation, and liquid insulating oil can be retrieved and is recycled, has improved this intermediate head's installation reliability and installation convenience.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a partial schematic view of the structure of fig. 1.

In the figure: 1. the device comprises a positioning pipe, 2, an auxiliary cover plate, 3, an auxiliary cylinder body, 4, a liquid injection port, 5, a liquid injection cover plate, 6, a high-voltage electrode joint, 7, an electrode tip, 8, an electrode connecting piece, 9, an epoxy piece, 10, liquid insulating oil, 11, an auxiliary joint, 12, a liquid outlet, 13, a second flange plate, 14, a first flange plate, 15, an integrated electrode, 16, an elongated cylinder body, 17, a through hole, 18, a cable groove, 19, a control valve, 20, a second annular groove, 21, a third flange plate, 22, a limiting bolt, 23, a third annular groove, 24, a second annular groove, 25, a first annular groove, 26, a first annular groove, 27, a base, 28, a limiting pipe, 29, an annular boss, 30, a bottom section, 31, an opening section, 32, a middle section, 33. the cable connector comprises an adapter head, 34 a cable head groove, 35 a conical groove, 36 a third sealing ring and 37 a positioning hole.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

In the embodiment shown in fig. 1 and 2, an elongated intermediate joint for rapid first-aid repair comprises an elongated cylinder 16, an auxiliary joint 11, epoxy members 9 and integrated electrodes 15, the integrated electrodes 15 are arranged in the elongated cylinder 16, the epoxy members 9 are arranged at two ends of the integrated electrodes 15, the auxiliary joint 11 is arranged at two ends of the elongated cylinder 16, the epoxy members 9 are arranged between the auxiliary joint 11 and the elongated cylinder 16, through holes 17 are formed in the epoxy members 9, the auxiliary joint 11 is communicated with the elongated cylinder 16 through the through holes 17 in the epoxy members 9 to form a cavity, and liquid insulating oil 10 is arranged in the cavity.

The lengthened cylinder body 16 is cylindrical, first flange plates 14 are arranged at two ends of the lengthened cylinder body 16, first annular grooves 26 are formed in the first flange plates 14, second flange plates 13 matched with the first flange plates 14 are arranged at the connecting ends of the auxiliary connectors 11 and the lengthened cylinder body 16, second annular grooves 24 matched with the first annular grooves 26 are formed in the second flange plates 13, and the epoxy pieces 9 are arranged in an area formed by the first annular grooves 26 and the second annular grooves 24. A first annular groove 25 is formed in the second flange 13 and located on the outer side of the second annular groove 24, and a first sealing ring is arranged in the first annular groove 25.

Auxiliary joint 11 is cylindric including supplementary stack shell 3 and supplementary apron 2, and the shape of supplementary stack shell 3 is cylindricly, and supplementary apron 2 is installed on a terminal surface of supplementary stack shell 3, and supplementary stack shell 3 passes through flange sealing connection with supplementary apron 2, is equipped with registration arm 1 on supplementary apron 2, and the centre department of supplementary apron 2 is arranged in to registration arm 1, and the intercommunication is between registration arm 1 and the supplementary apron 2, is equipped with the sealing layer in the registration arm 1. The side top of supplementary stack shell 3 is equipped with annotates liquid mouth 4, is equipped with third flange 21 on annotating liquid mouth 4, annotates liquid mouthful 4 on be equipped with third flange 21 assorted annotate liquid apron 5, is equipped with second annular groove 20 on the third flange 21, is equipped with the second sealing washer in the second annular groove 20, annotates liquid apron 5 through second sealing washer and annotate liquid mouthful 4 third flange 21 sealing connection, the side below of supplementary stack shell 3 is equipped with liquid outlet 12, is equipped with control flap 19 on the liquid outlet 12.

The epoxy part 9 is circular, a positioning hole 37 is formed in the middle of the epoxy part 9, a limiting pipe 28 is arranged on the left side surface and the right side surface of the epoxy part 9 and at the position where the positioning hole 37 is arranged, the diameter of the limiting pipe 28 is consistent with that of the positioning hole 37, the limiting pipe 28 and the epoxy part 9 are integrally formed, the through hole 17 is arranged on the epoxy part 9 and located on the outer side of the limiting pipe 28, and the through hole 17 is provided with a plurality of holes and is uniformly distributed on the epoxy part 9 by taking the positioning hole 37 as the center.

Integral type electrode 15 includes electrode tip 7 and electrode connecting piece 8, the both ends at electrode connecting piece 8 are installed to electrode tip 7, electrode tip 7 is integrated into one piece with electrode connecting piece 8, the one end of electrode tip 7 is connected with electrode connecting piece 8's one end, the other end of electrode tip 7 is equipped with cable recess 18, be equipped with high voltage electrode in the cable recess 18 and connect 6, be equipped with cable head groove 34 on the high voltage electrode connects 6, electrode connecting piece 8 is arranged in extension stack 16, electrode tip 7 is installed on epoxy 9. The cable groove 18 comprises an opening section 31, an intermediate section 32 and a bottom section 30, the opening section 31 and the bottom section 30 are cylindrical, the intermediate section 32 is in a circular truncated cone shape, the diameter of the opening section 31 is larger than that of the bottom section 30, the diameter of the intermediate section 32 is gradually reduced from the position close to the opening section 31 to the position close to the bottom section 30, and the high-voltage electrode connector 6 is installed in the bottom section 30 of the cable groove 18. An annular boss 29 is arranged at the position corresponding to the bottom section 30 of the cable groove 18 and on the outer side of the electrode tip 7, a limiting bolt 22 is arranged at the joint of the middle section 32 and the bottom section 30 of the cable groove 18 and at one end of the annular boss 29, and the limiting bolt 22 is in threaded connection with the electrode tip 7. The high-voltage electrode connector 6 comprises a base 27 and an adaptor 33, the base 27 is installed in the bottom section 30 of the cable groove 18, a plurality of third annular grooves 23 are formed in the outer side of the base 27, third sealing rings 36 are arranged in the third annular grooves 23, the base 27 is connected with the bottom section 30 of the cable groove 18 in a sealing mode through the third sealing rings 36 in the third annular grooves 23, the adaptor 33 is installed on the base 27 and is integrally formed with the base 27, the diameter of the base 27 is larger than that of the adaptor 33, the cable head groove 34 is arranged on the adaptor 33, and a conical groove 35 is formed in the adaptor 33 and is arranged at the bottom of the cable head groove 34.

When in use, a cable joint to be repaired is inserted into the auxiliary joint 11 from the positioning pipe 1 and is in sealing connection with the auxiliary joint 11 through a sealing layer in the positioning pipe 1, the inserted cable joint enters the electric joint of the integrated electrode 15 along the cable groove 18 and is matched with the cable head groove 34 of the high-voltage electrode joint 6, when the cable joint is uneven, part of cables on the cable joint enter the conical groove 35 until the cable joint is reliably connected with the high-voltage electrode joint 6, then liquid insulating oil 10 enters from the liquid injection port 4 of the auxiliary joint 11, the control valve 19 of the liquid outlet 12 is in a closed state, the liquid insulating oil 10 enters into the lengthening barrel 16 from the through hole 17 of the epoxy member 9 until the cavity formed by the auxiliary joint 11 and the addition barrel is filled with the liquid insulating oil 10, and then the liquid injection cover plate 5 is installed and fixed, this allows the cable joint and the integrated electrode 15 to be sufficiently covered with the liquid insulating oil 10, and the cable joint and the integrated electrode 15 can be protected.

Claims

1. The utility model provides an elongated rapid repair intermediate head, characterized by, includes extension stack shell (16), auxiliary joint (11), epoxy (9) and integral type electrode (15), integral type electrode (15) arrange in extension stack shell (16), epoxy (9) arrange in on the both ends of integral type electrode (15), auxiliary joint (11) arrange in on the both ends of extension stack shell (16), epoxy (9) arrange in between auxiliary joint (11) and extension stack shell (16), epoxy (9) on be equipped with through-hole (17), auxiliary joint (11) through-hole (17) on epoxy (9) and extension stack shell (16) intercommunication constitute a cavity, the cavity in be equipped with liquid insulating oil (10).

2. The elongated rapid first-aid repair intermediate head as claimed in claim 1, wherein the elongated barrel (16) is cylindrical, first flanges (14) are arranged at both ends of the elongated barrel (16), a first annular groove (26) is arranged on the first flanges (14), a second flange (13) matched with the first flange (14) is arranged at the connecting end of the auxiliary joint (11) and the elongated barrel (16), a second annular groove (24) matched with the first annular groove (26) is arranged on the second flange (13), and the epoxy member (9) is arranged in an area formed by the first annular groove (26) and the second annular groove (24).

3. An elongated intermediate joint for rapid first-aid repair according to claim 2, wherein a first annular groove (25) is provided on the second flange (13) and outside the second annular groove (24), and a first sealing ring is provided in the first annular groove (25).

4. An elongated rapid first-aid repair intermediate head according to claim 1, characterized in that the auxiliary joint (11) comprises an auxiliary barrel body (3) and an auxiliary cover plate (2), the auxiliary barrel body (3) is cylindrical, the auxiliary cover plate (2) is installed on one end face of the auxiliary barrel body (3), the auxiliary barrel body (3) and the auxiliary cover plate (2) are connected through a flange in a sealing manner, the auxiliary cover plate (2) is provided with a positioning pipe (1), the positioning pipe (1) is arranged in the middle of the auxiliary cover plate (2), the positioning pipe (1) and the auxiliary cover plate (2) are communicated with each other, and a sealing layer is arranged in the positioning pipe (1).

5. The elongated quick first-aid repair intermediate head as claimed in claim 4, wherein a liquid injection port (4) is arranged above the side surface of the auxiliary barrel body (3), the liquid injection port (4) is provided with a third flange plate (21), the liquid injection port (4) is provided with a liquid injection cover plate (5) matched with the third flange plate (21), the third flange plate (21) is provided with a second annular groove (20), the second annular groove (20) is internally provided with a second sealing ring, the liquid injection cover plate (5) is in sealing connection with the third flange plate (21) of the liquid injection port (4) through the second sealing ring, a liquid outlet (12) is arranged below the side surface of the auxiliary barrel body (3), and the liquid outlet (12) is provided with a control valve (19).

6. An elongated rapid first-aid repair intermediate head according to claim 1, characterized in that the epoxy member (9) is circular in shape, a positioning hole (37) is provided in the middle of the epoxy member (9), a limiting pipe (28) is provided on the left and right sides of the epoxy member (9) at the position where the positioning hole (37) is provided, the diameter of the limiting pipe (28) is consistent with the diameter of the positioning hole (37), the limiting pipe (28) and the epoxy member (9) are integrally formed, the through hole (17) is provided on the epoxy member (9) and is located outside the limiting pipe (28), and the through hole (17) is provided with a plurality of holes and is uniformly distributed on the epoxy member (9) with the positioning hole (37) as the center.

7. The elongated rapid first-aid repair intermediate head as claimed in claim 1 or 6, wherein the integrated electrode (15) comprises an electrode tip (7) and an electrode connector (8), the electrode tip (7) is installed at both ends of the electrode connector (8), the electrode tip (7) and the electrode connector (8) are integrally formed, one end of the electrode tip (7) is connected with one end of the electrode connector (8), the other end of the electrode tip (7) is provided with a cable groove (18), a high-voltage electrode joint (6) is arranged in the cable groove (18), a cable head groove (34) is arranged on the high-voltage electrode joint (6), the electrode connector (8) is arranged in the elongated barrel (16), and the electrode tip (7) is installed on the epoxy member (9).

8. An elongated rapid first-aid repair intermediate head according to claim 7, characterized in that the cable groove (18) comprises an opening section (31), an intermediate section (32) and a bottom section (30), the opening section (31) and the bottom section (30) are cylindrical, the intermediate section (32) is truncated cone-shaped, the diameter of the opening section (31) is greater than that of the bottom section (30), the diameter of the intermediate section (32) is gradually reduced from being close to the opening section (31) to being close to the bottom section (30), and the high-voltage electrode joint (6) is installed in the bottom section (30) of the cable groove (18).

9. The elongated rapid first-aid repair intermediate head as claimed in claim 8, wherein an annular boss (29) is provided at a position corresponding to the bottom section (30) of the cable groove (18) and outside the electrode head (7), a limit bolt (22) is provided at one end of the annular boss (29) and at a connection between the bottom section (30) of the cable groove (18) and the intermediate section (32), and the limit bolt (22) is in threaded connection with the electrode head (7).

10. An elongated intermediate joint for rapid first-aid repair according to claim 8, characterized in that the high voltage electrode joint (6) comprises a base (27) and an adapter (33), the base (27) is installed in the bottom section (30) of the cable groove (18), a plurality of third annular grooves (23) are provided on the outer side of the base (27), third sealing rings (36) are provided in the third annular grooves (23), the base (27) is hermetically connected with the bottom section (30) of the cable groove (18) through the third sealing rings (36) in the third annular grooves (23), the adapter (33) is installed on the base (27) and is integrally formed with the base (27), the diameter of the base (27) is larger than that of the adapter (33), the cable groove (34) is provided on the adapter (33), the adapter (33) is provided with a conical groove (35) at the bottom of the cable groove (34) .