CN215990163U

CN215990163U - Power cable head sheath and sheath joint combination device

Info

Publication number: CN215990163U
Application number: CN202122301617.5U
Authority: CN
Inventors: 易伟; 张书琴; 李晓琴; 曹华; 刘诺
Original assignee: Hubei Yisi Chuangju Power Engineering Co ltd
Current assignee: Hubei Yisi Chuangju Power Engineering Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-03-08
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses a power cable head sheath and sheath joint combination device, which comprises a cable, a shaft sleeve and a connecting component, wherein the shaft sleeve is sleeved at the end part of the cable, and the connecting component is connected to the shaft sleeve; the internal thread of the shaft sleeve is provided with an external thread fastening pipe, a sealing lining pipe is fixedly clamped between the external thread fastening pipe and the cable, and the linking assembly comprises a sleeve pipe, a sealing insertion pipe and a connecting pipe. In the utility model, the design of an inner and outer multi-layer sealing structure is adopted, the sealing protection and moisture and air prevention effects are greatly enhanced, and the inner linings and the outer layer are connected in a clamping or threaded manner, so that the connection relation between all layers of components is restrained, the firmness and stability of the integral structure of the device are enhanced, the leakage problem caused by instable installation is effectively avoided, and the safety and reliability are improved.

Description

Power cable head sheath and sheath joint combination device

Technical Field

The utility model relates to the technical field of cables, in particular to a power cable head sheath and a sheath joint combination device.

Background

The cable jacket is the outermost layer of the cable and, since the reinforcement armour inside the cable is able to provide a suitably high level but limited means of maintenance, the cable jacket acts as the most important barrier in the cable to maintain the safety of the internal structure, requiring maintenance of the cable from mechanical damage during and after installation.

When the cable is laid, the sections of the cable must be connected into a whole in order to form a continuous path, and these connection points are called cable connectors. The cable joints at the middle of the cable run are called intermediate joints and the cable joints at the two ends of the cable run are called terminal joints. The cable joint is generally finally wrapped and mounted on a cable sheath, so that the cable keeps a seal and a smooth line, and the insulation grade at the cable joint is ensured, so that the cable joint can safely and reliably operate. However, in the prior art, the phenomena of oil leakage, electric leakage, moisture invasion into the cable and the like caused by poor sealing effect of the joint sleeving often exist, so that the insulation performance of the cable is reduced, and the normal work of electrical equipment is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a power cable head sheath with a good sealing effect and a sheath joint combination device.

In order to solve the technical problems, the utility model adopts the following technical scheme: a power cable head sheath and sheath joint combination device comprises a cable, a shaft sleeve and a connecting component, wherein the shaft sleeve is sleeved at the end part of the cable, and the connecting component is connected to the shaft sleeve;

the utility model discloses a cable, including the axle sleeve pipe, the inside screw thread of axle sleeve pipe installs external screw thread fastening pipe, external screw thread fastening pipe with the fixation clamp is equipped with sealed inside lining pipe between the cable, it includes bell and spigot pipe, sealed intubate and connecting pipe to link up the subassembly, bell and spigot pipe and sealed intubate are fixed respectively the same one end of connecting pipe, the bell and spigot pipe cover is established the periphery of sealed intubate, the bell and spigot pipe contradicts to being connected to the axle sleeve pipe, sealed intubate slip peg graft extremely the inside of sealed inside lining pipe and contradict extremely the tip of cable.

Furthermore, the sealing lining pipe is made of anticorrosive rubber, an inner flange pipe is attached to the upper end of the inner pipe wall of the sealing lining pipe, a sheath wraps the periphery of the cable, and the end portion of the cable is inserted into the sealing lining pipe and abuts against the bottom end of the inner flange pipe.

Furthermore, the external thread fastening pipe is fixedly sleeved on the periphery of the sealing lining pipe, the external thread fastening pipe is flush with the lower end of the sealing lining pipe, the upper end of the external thread fastening pipe is lower than the upper end of the sealing lining pipe, a first inner groove is formed in the middle of the inner wall of the shaft sleeve, first internal threads are distributed on the inner wall of the first inner groove, and the first internal threads are in threaded matching with the external thread fastening pipe.

Further, a second inner groove is formed in the upper end of the inner wall of the shaft sleeve pipe, the diameter of the second inner groove is larger than that of the first inner groove, a second internal thread is distributed on the inner wall of the second inner groove, an external thread flange pipe is fixed on the pipe orifice of the sleeve pipe in the middle, and the external thread flange pipe is matched with the second internal thread in a threaded mode and abutted to the top end of the external thread fastening pipe.

Furthermore, the pipe orifice of the sleeve pipe is positioned at the outer side edge of the external thread flange pipe and abuts against the top end of the shaft sleeve pipe, and the pipe orifice of the sleeve pipe is positioned at the inner side edge of the external thread flange pipe and abuts against the top end of the inner flange pipe.

Furthermore, the upper end of the sealed insertion tube is flush with the upper end of the sleeve pipe, the lower end of the sealed insertion tube is longer than and extends out of the lower end of the sleeve pipe, a sliding strip is annularly arranged on the periphery of the sealed insertion tube, a sliding groove is annularly arranged on the inner wall of the inner flange pipe, the sealed insertion tube is matched with the sliding groove in a sliding mode through the sliding strip, so that the sealed insertion tube is inserted into the inner flange pipe, and the cross sections of the sliding strip and the sliding groove are trapezoidal.

Furthermore, the end part of the cable is communicated to the sealing insertion pipe, the sealing insertion pipe is communicated to the connecting pipe, the cross section of the connecting pipe is of an arc-shaped structure, and convex particles are uniformly distributed on the outer portion of the connecting pipe.

Furthermore, one end, far away from the sleeve pipe, of the connecting pipe is connected with a conical screw thread through a reinforcing rib, a terminal installation cap can be installed on the conical screw thread in a threaded mode, and a sealing gasket is fixed between the terminal installation cap and the conical screw thread.

The utility model has the beneficial effects that:

in the utility model, the design of an inner and outer multi-layer sealing structure is adopted, the sealing protection and moisture and air prevention effects are greatly enhanced, and the inner linings and the outer layer are connected in a clamping or threaded manner, so that the connection relation between all layers of components is restrained, the firmness and stability of the integral structure of the device are enhanced, the leakage problem caused by instable installation is effectively avoided, and the safety and reliability are improved.

According to the utility model, the inner lining pipe and the outer layer pipe are connected with each other in a clamping or threaded manner, so that the assembly and disassembly work of the device is very convenient, the improvement of the installation efficiency is facilitated, meanwhile, the end part of the connecting pipe can be matched with the installation terminal installation cap through the conical screw thread, so that the device can be used as a terminal joint, and can also be connected with another device through the conical screw thread matching with the threaded pipe, so that the two devices connected with each other form an intermediate joint, and the application range of the device is facilitated to be improved.

Drawings

Fig. 1 is a sectional view of the overall structure of an embodiment of the present invention.

FIG. 2 is an assembly view of a seal liner tube and cable according to one embodiment of the present invention.

Fig. 3 is a schematic view of the overall structure of the shaft sleeve according to the embodiment of the present invention.

Fig. 4 is a schematic view of an overall structure of a connection assembly according to an embodiment of the utility model.

Fig. 5 is a schematic view of the overall structure of the terminal mounting cap according to an embodiment of the present invention.

The components in the drawings are labeled as follows: 1. a cable; 101. a sheath; 2. sealing the lining pipe; 201. an inner flanged tube; 202. a chute; 3. an external thread fastening pipe; 4. a shaft sleeve; 401. a first inner groove; 402. a first internal thread; 403. a second inner groove; 404. a second internal thread; 5. an engagement assembly; 501. sleeving a pipe; 502. an externally threaded flanged pipe; 503. sealing the cannula; 504. a slide bar; 505. a connecting pipe; 506. convex particles; 507. reinforcing ribs; 508. a conical screw thread; 6. a terminal mounting cap; 601. a gasket is provided.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, "a plurality" means two or more. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

See fig. 1-5.

The utility model relates to a power cable head sheath and sheath joint combination device, which comprises a cable 1, a shaft sleeve 4 and a connecting component 5, wherein the shaft sleeve 4 is sleeved at the end part of the cable 1, and the connecting component 5 is connected to the shaft sleeve 4;

external screw thread fastening pipe 3 is installed to the inside screw thread of axle sleeve 4, external screw thread fastening pipe 3 with fixation clamp is equipped with sealed interior bushing pipe 2 between the cable 1, it includes bell and spigot 501, sealed intubate 503 and connecting pipe 505 to link up subassembly 5, bell and spigot 501 and sealed intubate 503 are fixed respectively same one end of connecting pipe 505, bell and spigot 501 cover is established sealed intubate 503 periphery, bell and spigot 501 contradicts to being connected to axle sleeve 4, sealed intubate 503 slide peg graft extremely sealed interior bushing pipe 2's inside and conflict extremely the tip of cable 1.

In an embodiment, the sealing lining pipe 2 is made of an anticorrosive rubber material, the upper end of the inner pipe wall of the sealing lining pipe 2 is provided with an inner flange pipe 201 in a fitting manner, the periphery of the cable 1 is wrapped with the sheath 101, the end portion of the cable 1 is inserted into the sealing lining pipe 2 and abutted to the bottom end of the inner flange pipe 201, the sealing lining pipe 2 is mounted with the cable 1 and the sheath 101 in a fitting manner, the protective effect and the service life between the sealing lining pipe and the cable 1 can be greatly enhanced by adopting the anticorrosive rubber material, and the end portion of the cable 1 is extruded and abutted to the bottom of the inner flange pipe 201, so that the limiting and anti-falling effects of the cable 1 are achieved.

In one embodiment, the external thread fastening tube 3 is fixedly sleeved on the periphery of the seal lining tube 2, the external thread fastening tube 3 is flush with the lower end of the seal lining tube 2, the upper end of the external thread fastening tube 3 is lower than the upper end of the seal lining tube 2, a first inner groove 401 is formed in the middle of the inner wall of the shaft sleeve 4, first inner threads 402 are distributed on the inner wall of the first inner groove 401, the first inner threads 402 are in thread matching with the external thread fastening tube 3, so that the external thread fastening tube 3 plays a role in extruding and fixing the seal lining tube 2 and the cable 1 in the tube to prevent the seal lining tube 2 from loosening, and plays a role in connecting with the shaft sleeve 4 to fix the shaft sleeve 4 by means of the connection with the external thread fastening tube 3, the cable can be stably sleeved on the cable 1, and the external thread fastening pipe 3 and the sealing lining pipe 2 can be abutted and blocked by the bottom surface of the inner wall of the first inner groove 401.

In an embodiment, a second inner groove 403 is formed in the upper end of the inner wall of the shaft sleeve 4, the diameter of the second inner groove 403 is larger than that of the first inner groove 401, a second internal thread 404 is distributed on the inner wall of the second inner groove 403, an external thread flange pipe 502 is fixed on the pipe orifice of the sleeve pipe 501 in the middle, the external thread flange pipe 502 is in thread matching with the second internal thread 404 and is abutted to the top end of the external thread fastening pipe 3, and the second inner groove 403 is recessed in the first inner groove 401, so that when the second internal thread 404 and the external thread flange pipe 502 are in matching connection, the external thread flange pipe 502 is abutted and plugged to the external thread fastening pipe 3, and the internal structure is stable.

In an embodiment, the pipe orifice of the socket pipe 501 is located at the outer edge of the externally threaded flanged pipe 502 and abuts against the top end of the shaft sleeve 4, and the pipe orifice of the socket pipe 501 is located at the inner edge of the externally threaded flanged pipe 502 and abuts against the top end of the inner flanged pipe 201, so that the tightness of the joint installation between the socket pipe 501 and the shaft sleeve 4 and the inner pipeline thereof is enhanced.

In an embodiment, the upper end of the sealing insertion tube 503 is flush with the upper end of the sleeve 501, the lower end of the sealing insertion tube 503 is longer than and extends out of the lower end of the sleeve 501, a sliding strip 504 is annularly arranged on the periphery of the sealing insertion tube 503, a sliding groove 202 is annularly arranged on the inner wall of the inner flange tube 201, the sealing insertion tube 503 is matched with the sliding groove 202 through the sliding strip 504 in a sliding manner, so as to be inserted into the inner flange tube 201, and the sliding strip 504 and the sliding groove 202 are both trapezoidal in cross section, so that the design is that the sliding connection between the sliding strip 504 and the sliding groove 202 of the trapezoidal body is beneficial to enhancing the tightness of the connection between the sealing insertion tube 503 and the sealing liner tube 2, and the looseness is avoided.

In an embodiment, the end of the cable 1 is connected to the sealing insertion tube 503, the sealing insertion tube 503 is connected to the connection tube 505, the cross section of the connection tube 505 is of an arc-shaped structure, and the protruding particles 506 are uniformly distributed on the outside of the connection tube 505, so that the core inside the cable 1 can be directly connected to the sealing insertion tube 503 and the connection tube 505, the convenience of wiring is improved, and the protruding particles 506 are distributed on the connection tube 505 of the arc-shaped body, so that the cable is more convenient to take.

In an embodiment, a tapered thread 508 is connected to one end of the connecting pipe 505 far from the socket 501 through a reinforcing rib 507, a terminal installation cap 6 can be screwed on the tapered thread 508, and a sealing washer 601 is fixed between the terminal installation cap 6 and the tapered thread 508, so that the device is designed to be coated with an insulating protective layer on the outer surface, the end of the connecting pipe 505 can be matched with the terminal installation cap 6 through the tapered thread 508, so that the device can be used as a terminal joint, and can be matched with a threaded pipe through the tapered thread 508 to be connected with another device, so that two devices connected with each other are formed into an intermediate joint, which helps to improve the application range of the device.

It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this disclosure.

Claims

1. The utility model provides a power cable head sheath and sheath connect composite set, includes cable (1), its characterized in that: the cable connector also comprises a shaft sleeve (4) and a connecting component (5), wherein the shaft sleeve (4) is sleeved at the end part of the cable (1), and the connecting component (5) is connected to the shaft sleeve (4);

external screw thread fastening pipe (3) are installed to the internal thread of axle sleeve pipe (4), external screw thread fastening pipe (3) with fixation clamp is equipped with sealed interior bushing pipe (2) between cable (1), linking subassembly (5) are including socket pipe (501), sealed intubate (503) and connecting pipe (505), socket pipe (501) and sealed intubate (503) are fixed respectively the same one end of connecting pipe (505), socket pipe (501) cover is established the periphery of sealed intubate (503), socket pipe (501) are contradicted to being connected to axle sleeve pipe (4), sealed intubate (503) slide plug-in connect to the inside of sealed interior bushing pipe (2) and contradict to the tip of cable (1).

2. The power cable head sheath and sheath joint assembly of claim 1, wherein: the sealing lining pipe (2) is made of anticorrosive rubber, an inner flange pipe (201) is attached to the upper end of the inner pipe wall of the sealing lining pipe (2), a sheath (101) wraps the periphery of the cable (1), and the end of the cable (1) is inserted into the sealing lining pipe (2) and abutted to the bottom end of the inner flange pipe (201).

3. The power cable head sheath and sheath joint assembly of claim 2, wherein: the outer thread fastening pipe (3) is fixedly sleeved on the periphery of the sealing lining pipe (2), the outer thread fastening pipe (3) is flush with the lower end of the sealing lining pipe (2), the upper end of the outer thread fastening pipe (3) is lower than the upper end of the sealing lining pipe (2), a first inner groove (401) is formed in the middle of the inner wall of the shaft sleeve (4), first inner threads (402) are distributed on the inner wall of the first inner groove (401), and the first inner threads (402) are in threaded matching with the outer thread fastening pipe (3).

4. The power cable head sheath and sheath joint assembly of claim 3, wherein: second inner groovy (403) have been seted up to the upper end of axle sleeve pipe (4) inner wall, the diameter of second inner groovy (403) is greater than the diameter of first inner groovy (401), it has second internal thread (404) to distribute on the inner wall of second inner groovy (403), be fixed with external screw thread flange pipe (502) between two parties on the mouth of pipe of bell and spigot pipe (501), external screw thread flange pipe (502) with second internal thread (404) screw thread matches, and contradict to the top of external screw thread fastening pipe (3).

5. The power cable head sheath and sheath joint assembly of claim 4, wherein: the pipe orifice of the sleeve pipe (501) is positioned at the outer side edge of the external thread flange pipe (502) and abutted to the top end of the shaft sleeve pipe (4), and the pipe orifice of the sleeve pipe (501) is positioned at the inner side edge of the external thread flange pipe (502) and abutted to the top end of the inner flange pipe (201).

6. The power cable head sheath and sheath joint assembly of claim 5, wherein: the upper end of the sealing insertion pipe (503) is flush with the upper end of the sleeve pipe (501), the lower end of the sealing insertion pipe (503) is longer than and extends out of the lower end of the sleeve pipe (501), a sliding strip (504) is annularly arranged on the periphery of the sealing insertion pipe (503), a sliding groove (202) is annularly arranged on the inner wall of the inner flange pipe (201), the sealing insertion pipe (503) is matched with the sliding groove (202) in a sliding mode through the sliding strip (504) so as to be inserted into the inner flange pipe (201), and the cross sections of the sliding strip (504) and the sliding groove (202) are trapezoidal.

7. The power cable head sheath and sheath joint assembly of claim 1, wherein: the end part of the cable (1) is communicated to the sealing insertion pipe (503), the sealing insertion pipe (503) is communicated to the connecting pipe (505), the cross section of the connecting pipe (505) is of an arc-shaped structure, and convex particles (506) are uniformly distributed on the outer part of the connecting pipe (505).

8. The power cable head sheath and sheath joint assembly of claim 7, wherein: one end, far away from the sleeve joint pipe (501), of the connecting pipe (505) is connected with a conical screw thread (508) through a reinforcing rib (507), a terminal installation cap (6) can be installed on the conical screw thread (508) in a threaded mode, and a sealing gasket (601) is fixed between the terminal installation cap (6) and the conical screw thread (508).