CN212063452U - Cable joint - Google Patents
Cable joint Download PDFInfo
- Publication number
- CN212063452U CN212063452U CN201921867520.7U CN201921867520U CN212063452U CN 212063452 U CN212063452 U CN 212063452U CN 201921867520 U CN201921867520 U CN 201921867520U CN 212063452 U CN212063452 U CN 212063452U
- Authority
- CN
- China
- Prior art keywords
- ring
- sealing ring
- wall
- main pipe
- pipe body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 121
- 238000010030 laminating Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The cable joint comprises a main pipe body, an annular first end cover and an annular second end cover, wherein the first end cover is arranged at the first end of the main pipe body, and the second end cover is arranged at the second end of the main pipe body; the cable joint further comprises a first sealing ring, the outer wall of the first sealing ring abuts against the first oblique conical surface, a first push cylinder used for abutting against one side of the first sealing ring is arranged on the inner wall of the first end cover, and the first push cylinder and the first end cover are coaxially arranged and protrude out of one side of the first end cover; and the inner wall of the second end cover is hermetically filled with plugging mud. The cable joint structure in this embodiment is simple, and is higher with high tension cable's laminating degree, easily uses widely.
Description
Technical Field
The disclosure relates to the technical field of power transmission, in particular to a cable joint.
Background
With the continuous development of the cable industry, high-voltage and ultrahigh-voltage cables are widely applied to power systems. Due to the sensitivity of the high-voltage cable to moisture, higher demands are made on the sealing performance of the cable installation fittings during the laying of the high-voltage cable.
In the related art, a cable connector is a cable laying installation accessory, and the cable connector is used for connecting a high-voltage cable and isolating the high-voltage cable connector from contacting with the outside so as to ensure the safety and the sealing performance of the high-voltage cable. The cable joint mainly comprises a main pipe body and two annular end covers, when the cable joint is used, the two end covers are respectively pre-screwed at two ends of the main pipe body, then a high-voltage cable penetrates through the end covers and is inserted into the main pipe body, and then the two end covers are respectively screwed so as to realize axial sealing between the end covers and the main pipe body through O-shaped rings on the end covers.
However, because of the axial seal between the end cap and the main pipe body, the sealing performance is completely dependent on the tight installation between the end cap and the main pipe body, and the sealing failure of the cable joint can be caused once the end cap is not installed in place or is slightly loosened.
SUMMERY OF THE UTILITY MODEL
The embodiment of the disclosure provides a cable joint, which can effectively seal a cable in cable laying construction. The technical scheme is as follows:
the cable joint is characterized in that a first oblique conical surface is arranged on the inner wall of the main pipe body at a position close to the first end, and the large end of the first oblique conical surface is arranged towards the first end of the main pipe body;
the cable joint further comprises a first sealing ring, the outer wall of the first sealing ring abuts against the first oblique conical surface, a first push cylinder used for abutting against one side of the first sealing ring is arranged on the inner wall of the first end cover, and the first push cylinder and the first end cover are coaxially arranged and protrude out of one side of the first end cover;
and the inner wall of the second end cover is hermetically filled with plugging mud.
In an implementation manner of the present disclosure, the first sealing ring is a tapered annular structure, an outer diameter of one end of the first sealing ring is larger than an outer diameter of the other end of the first sealing ring, and a small end of the first sealing ring is arranged back to the first end cap.
In another implementation manner of the present disclosure, a first connection ring is coaxially disposed on an inner wall of the first end cover, an outer edge of the first connection ring is connected to an inner wall of the first seal ring, and an inner edge of the first connection ring is coaxially connected to the first push cylinder.
In another implementation manner of the present disclosure, a second oblique conical surface is disposed on a position, close to the second end, of an inner wall of the main pipe, a large end of the first oblique conical surface is disposed toward the second end of the main pipe, the cable joint further includes a second sealing ring, an outer wall of the second sealing ring abuts against the second oblique conical surface, a second push cylinder for abutting against one side of the second sealing ring is disposed on an inner wall of the second end cover, and the second push cylinder and the second end cover are coaxially disposed and protrude from one side of the second end cover.
In another implementation manner of the present disclosure, the second seal ring is a tapered ring structure, an outer diameter of one end of the second seal ring is larger than an outer diameter of the other end of the second seal ring, and a small end of the second seal ring is disposed opposite to the second end cap.
In another implementation manner of the present disclosure, a second connection ring is coaxially disposed on the inner wall of the second end cap, an outer edge of the second connection ring is connected to the inner wall of the second sealing ring, and an inner edge of the second connection ring is coaxially connected to the second push cylinder.
In another implementation manner of the present disclosure, a convex ring is disposed in the middle of the outer wall of the main pipe body, the convex ring is arranged coaxially with the main pipe body, and the outer wall of the convex ring is hexagonal prism-shaped.
In another implementation manner of the present disclosure, two sides of the protruding ring are respectively provided with a sealing groove, each sealing groove is coaxially arranged with the main pipe body, a sealing ring is disposed in each sealing groove, the sealing ring close to the first end cover is sandwiched between the first end cover and the protruding ring, and the sealing ring close to the second end cover is sandwiched between the second end cover and the protruding ring.
In yet another implementation of the present disclosure, the outer walls of the first and second end caps are each hexagonal prism shaped.
In yet another implementation of the present disclosure, the first end cap and the second end cap are each threadably connected to the main tubular body.
The technical scheme provided by the embodiment of the disclosure has the following beneficial effects:
when the cable joint that provides through this embodiment installs high tension cable, at first, with first sealing washer cartridge in being responsible for the body for the outer wall of first sealing washer offsets with first oblique conical surface. Then, the high-voltage cable is inserted into the main pipe body. Because the first end cover is provided with the first push cylinder, when the first end cover is arranged at the first end of the main pipe body, the first push cylinder is abutted against the first sealing ring and pushes the first sealing ring to move along the axial direction of the main pipe body. Under the action of the first oblique conical surface, the first sealing ring is gradually locked to be tightly clamped between the cable and the inner wall of the main pipe body, so that the first end of the main pipe body is sealed. Then, the second end cover is installed to the second end of the main pipe body, and plugging mud is filled in the inner wall of the second end cover in a sealing mode, so that the second end of the main pipe body is sealed. Therefore, the radial sealing between the main pipe body and the cable is realized through the first sealing ring, the sealing performance of the cable joint cannot be influenced even if the first end cover is loosened to a certain degree, and the reliability of the cable joint is ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic view of a cable joint structure according to an embodiment of the disclosure.
The symbols in the drawings represent the following meanings:
1. a primary tube; 11. a first oblique conical surface; 12. a second beveled conical surface; 13. a convex ring; 14. a sealing groove;
2. a first end cap; 21. a first push cylinder; 22. a first connecting ring; 3. a second end cap; 31. a second push cylinder; 32. a second connection ring;
4. a first seal ring; 5. and a second seal ring.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
The embodiment of the present disclosure provides a cable joint, as shown in fig. 1, the cable joint includes a main pipe body 1, an annular first end cover 2 and an annular second end cover 3, the first end cover 2 is installed at a first end of the main pipe body 1, the second end cover 3 is installed at a second end of the main pipe body 1, a first oblique conical surface 11 is provided at a position of an inner wall of the main pipe body 1 close to the first end, and a large end of the first oblique conical surface 11 is arranged toward the first end of the main pipe body 1.
The cable joint further comprises a first sealing ring 4, the outer wall of the first sealing ring 4 abuts against the first oblique conical surface 11, a first push cylinder 21 used for abutting against one side of the first sealing ring 4 is arranged on the inner wall of the first end cover 2, the first push cylinder 21 and the first end cover 2 are coaxially arranged and protrude out of one side of the first end cover 2, and the inner wall of the second end cover 3 is filled with plugging mud in a sealing mode.
When the cable joint that provides through this embodiment installs high tension cable, at first, with first sealing washer cartridge in being responsible for the body for the outer wall of first sealing washer offsets with first oblique conical surface. Then, the high-voltage cable is inserted into the main pipe body. Because the first end cover is provided with the first push cylinder, when the first end cover is arranged at the first end of the main pipe body, the first push cylinder is abutted against the first sealing ring and pushes the first sealing ring to move along the axial direction of the main pipe body. Under the action of the first oblique conical surface, the first sealing ring is gradually locked to be tightly clamped between the cable and the inner wall of the main pipe body, so that the first end of the main pipe body is sealed. Then, the second end cover is installed to the second end of the main pipe body, and plugging mud is filled in the inner wall of the second end cover in a sealing mode, so that the second end of the main pipe body is sealed. Therefore, the radial sealing between the main pipe body and the cable is realized through the first sealing ring, the sealing performance of the cable joint cannot be influenced even if the first end cover is loosened to a certain degree, and the reliability of the cable joint is ensured.
Optionally, the first sealing ring 4 is a tapered ring structure, an outer diameter of one end of the first sealing ring 4 is larger than an outer diameter of the other end of the first sealing ring 4, and a small end of the first sealing ring 4 is arranged opposite to the first end cover 2.
In the above implementation manner, the first sealing ring 4 is designed to be a small end and a big end, so that the first sealing ring 4 can better abut against the first oblique conical surface 11 in the main pipe body 1 when being connected to the main pipe body 1 along with the first end cap 2, and meanwhile, the first sealing ring 4 is also beneficial to inserting the first sealing ring into the main pipe body 1, and finally, the waterproof sealing of the cable inside the main pipe body 1 is realized through the interference fit between the first sealing ring 4 and the cable.
Illustratively, the first seal ring 4 may be a rubber ring, and the first seal ring 4 has a length of 30mm in its axial direction, an inner diameter M72mm, and an outer diameter Φ 82mm at its large end and an outer diameter Φ 75mm at its small end.
In the above implementation manner, the first sealing ring 4 is a rubber ring, so that the first sealing ring 4 can be elastically deformed when being clamped between the cable and the main pipe body 1, and the sealing effect on the high-voltage cable is realized through deformation extrusion.
Optionally, the first end cap 2 and the second end cap 3 are both threadedly connected to the main tube body 1.
In the above implementation manner, the first end cover 2 and the second end cover 3 are detachably connected with the main pipe body 1 through the threaded connection, and the first sealing ring 4 can be effectively extruded through the threaded connection, so that the effective sealing of the cable is realized.
Exemplarily, the first end and the second end of the main pipe body 1 are both provided with external threads, and the inner walls of the first end cover 2 and the second end cover 3 are provided with internal threads matched with the main pipe body 1.
Illustratively, the main tube body 1 is of a double-head structure, the inner diameter of the main tube body 1 can be phi 80mm, the length of the external thread at both ends of the main tube body 1 is 30mm, and the outer diameter is M83 × 2.5 mm.
Illustratively, the first end cap 2 has a length of 50mm in its axial direction, an outer diameter Φ 100mm, an internal thread length of 40mm, M83 x 2.5mm, and the second end cap 3 has a total length of 50mm, an outer diameter Φ 100mm, an internal thread length of 40mm, M83 x 2.5 mm.
Optionally, a first connection ring 22 is coaxially disposed on the inner wall of the first end cap 2, an outer edge of the first connection ring 22 is connected to the inner wall of the first sealing ring 4, and an inner edge of the first connection ring 22 is coaxially connected to the first push cylinder 21.
In the above implementation manner, the first connection ring 22 is provided to facilitate the fixing of the first push cylinder 21 on the inner wall of the first end cap 2, so that the first push cylinder 21 can be installed on the main pipe body 1 along with the first end cap 2 to extrude the first sealing ring 4.
With reference to fig. 1, in this embodiment, a second oblique conical surface 12 is disposed on a position of the inner wall of the main pipe body 1 close to the second end, a large end of the second oblique conical surface 12 is disposed toward the second end of the main pipe body 1, the cable joint further includes a second sealing ring 5, an outer wall of the second sealing ring 5 abuts against the second oblique conical surface 12, a second push cylinder 31 for abutting against one side of the second sealing ring 5 is disposed on an inner wall of the second end cap 3, and the second push cylinder 31 and the second end cap 3 are coaxially disposed and protrude from one side of the second end cap 3.
In the above implementation manner, the arrangement of the second sealing ring 5 effectively ensures the sealing effect of the second end of the main pipe 1 when the cable is inserted into the main pipe 1, and the arrangement of the second tapered surface 12 is convenient to ensure that the second sealing ring 5 can always be tightly attached to the inner wall of the main pipe 1 when the cable is inserted into the main pipe 1, so as to further improve the sealing effect inside the main pipe 1; the arrangement of the second push cylinder 31 is convenient for ensuring that the second sealing ring 5 can be inserted into the main pipe body 1 under the pushing and squeezing of the second end cover 3 when the cable is inserted into the main pipe body 1, so as to seal the cable.
Optionally, the second sealing ring 5 is a tapered ring structure, the outer diameter of one end of the second sealing ring 5 is larger than that of the other end, and the small end of the second sealing ring 5 is arranged opposite to the second end cap 3.
In the above implementation manner, the second sealing ring 5 is designed to be a small end and a large end, so that the second sealing ring 5 can better abut against the second oblique conical surface 12 in the main pipe body 1 when being connected to the main pipe body 1 along with the second end cap 3, and meanwhile, the second sealing ring 5 is also beneficial to inserting the second oblique conical surface into the main pipe body 1, and finally, the cable is in waterproof sealing inside the main pipe body 1 through interference fit between the second sealing ring 5 and the cable.
Optionally, a second connection ring 32 is coaxially disposed on the inner wall of the second end cap 3, the outer edge of the second connection ring 32 is connected with the inner wall of the second sealing ring 5, and the inner edge of the second connection ring 32 is coaxially connected with the second push cylinder 31.
In the above implementation, the second connection ring 32 is provided to ensure the fixation of the second push cylinder 31 on the inner wall of the second end cap 3, so that the second push cylinder 31 can press the second seal ring 5 when the second end cap 3 is disassembled and assembled on the main pipe body 1.
The second sealing ring 5 may be a rubber ring, for example. The second seal ring 5 has a length of 30mm in the axial direction thereof, an inner diameter M72mm, and an outer diameter phi 82mm at the large end thereof and an outer diameter phi 75mm at the small end thereof.
In the above implementation manner, the second sealing ring 5 is a rubber ring, so that the second sealing ring 5 can be elastically deformed when being clamped on the inner walls of the cable and the main pipe body 1, and the sealing effect on the high-voltage cable is realized through deformation extrusion.
In this embodiment, the middle of the outer wall of the main pipe body 1 is provided with a convex ring 13, the convex ring 13 is arranged coaxially with the main pipe body 1, and the outer wall of the convex ring 13 is hexagonal prism shaped.
In the above implementation manner, the arrangement of the protruding ring 13 facilitates the connection of the main pipe body 1 to the first end cap 2 and the second end cap 3 respectively through the clamping and positioning of tools such as a wrench, and the protruding ring 13 is designed in a hexagonal prism shape, which facilitates the fastening and fixing of the protruding ring 13 by a wrench tool, so as to further connect the protruding ring with the first end cap 2 and the second end cap 3.
It is understood that the outer shape of the convex ring 13 may also be cylindrical, and the embodiment is not limited thereto.
Optionally, two sides of the protruding ring 13 are respectively provided with a sealing groove 14, each sealing groove 14 is coaxially arranged with the main pipe body 1, a sealing ring is arranged in each sealing groove 14, the sealing ring close to the first end cover 2 is clamped between the first end cover 2 and the protruding ring 13, and the sealing ring close to the second end cover 3 is clamped between the second end cover 3 and the protruding ring 13.
In the above implementation manner, the sealing grooves 14 and the sealing rings are set to further ensure the sealing performance between the first end cover 2 and the main pipe body 1 and between the second end cover 3 and the main pipe body 1, so as to improve the overall sealing effect of the cable joint.
Optionally, the outer walls of the first end cap 2 and the second end cap 3 are each hexagonal prism shaped.
In the above implementation, the first end cap 2 and the second end cap 3 are designed in a hexagonal prism shape, so that a tool such as a wrench can be conveniently clamped and positioned on the outer wall of the first end cap 2 or the second end cap 3 to connect the first end cap 2 or the second end cap 3 with the main pipe body.
The operation of the cable joint in this embodiment will be briefly described as follows:
firstly, one end of a cable penetrates through a first end cover, a first sealing ring, a main pipe body, a second sealing ring and a second end cover. Then, the first end cover is in threaded connection with the first end of the main pipe body, the first sealing ring is extruded between the cable and the first end cover through the first push cylinder, the second end cover is in threaded connection with the second end of the main pipe body, and the second sealing ring is extruded between the cable and the second end cover through the second push cylinder. Then, the inner wall of the second end cover is sealed and filled with plugging mud, and the cable can be sealed.
The above description is meant to be illustrative of the principles of the present disclosure and not to be taken in a limiting sense, and any modifications, equivalents, improvements and the like that are within the spirit and scope of the present disclosure are intended to be included therein.
Claims (10)
1. A cable joint comprises a main pipe body (1), an annular first end cover (2) and an annular second end cover (3), wherein the first end cover (2) is installed at the first end of the main pipe body (1), and the second end cover (3) is installed at the second end of the main pipe body (1), and is characterized in that a first oblique conical surface (11) is arranged at a position, close to the first end, of the inner wall of the main pipe body (1), and the large end of the first oblique conical surface (11) is arranged towards the first end of the main pipe body (1);
the cable joint further comprises a first sealing ring (4), the outer wall of the first sealing ring (4) abuts against the first oblique conical surface (11), a first push cylinder (21) used for abutting against one side of the first sealing ring (4) is arranged on the inner wall of the first end cover (2), and the first push cylinder (21) and the first end cover (2) are coaxially arranged and protrude out of one side of the first end cover (2);
the inner wall of the second end cover (3) is filled with plugging mud in a sealing mode.
2. The cable joint according to claim 1, characterized in that the first sealing ring (4) is a tapered ring structure, the outer diameter of one end of the first sealing ring (4) is larger than that of the other end, and the small end of the first sealing ring (4) is arranged opposite to the first end cap (2).
3. The cable joint according to claim 1, characterized in that a first connecting ring (22) is coaxially arranged on the inner wall of the first end cap (2), the outer edge of the first connecting ring (22) is connected with the inner wall of the first sealing ring (4), and the inner edge of the first connecting ring (22) is coaxially connected with the first push cylinder (21).
4. The cable joint according to claim 1, wherein a second tapered surface (12) is provided at a position close to the second end of the inner wall of the main pipe body (1), a large end of the second tapered surface (12) is disposed toward the second end of the main pipe body (1), the cable joint further comprises a second sealing ring (5), an outer wall of the second sealing ring (5) abuts against the second tapered surface (12), a second pushing cylinder (31) for abutting against one side of the second sealing ring (5) is provided at an inner wall of the second end cap (3), and the second pushing cylinder (31) is disposed coaxially with the second end cap (3) and protrudes from one side of the second end cap (3).
5. The cable joint according to claim 4, characterized in that the second sealing ring (5) is a tapered ring structure, the outer diameter of one end of the second sealing ring (5) is larger than the outer diameter of the other end, and the small end of the second sealing ring (5) is arranged opposite to the second end cap (3).
6. The cable joint according to claim 4, characterized in that a second connection ring (32) is coaxially arranged on the inner wall of the second end cap (3), the outer edge of the second connection ring (32) is connected with the inner wall of the second sealing ring (5), and the inner edge of the second connection ring (32) is coaxially connected with the second push sleeve (31).
7. Cable joint according to claim 1, characterized in that the outer wall of the main tubular body (1) is provided in the middle with a protruding ring (13), said protruding ring (13) being arranged coaxially with the main tubular body (1), the outer wall of the protruding ring (13) being hexagonal-prism shaped.
8. The cable joint according to claim 7, wherein the male ring (13) is provided with a sealing groove (14) on each side, each sealing groove (14) is arranged coaxially with the main pipe body (1), a sealing ring is arranged in each sealing groove (14), the sealing ring near the first end cap (2) is clamped between the first end cap (2) and the male ring (13), and the sealing ring near the second end cap (3) is clamped between the second end cap (3) and the male ring (13).
9. The cable joint according to any of claims 1 to 8, characterized in that the outer walls of the first end cap (2) and the second end cap (3) are each hexagonal prism shaped.
10. The cable joint according to any of claims 1 to 8, characterized in that the first end cap (2) and the second end cap (3) are both screwed to the main tube body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921867520.7U CN212063452U (en) | 2019-10-31 | 2019-10-31 | Cable joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921867520.7U CN212063452U (en) | 2019-10-31 | 2019-10-31 | Cable joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212063452U true CN212063452U (en) | 2020-12-01 |
Family
ID=73508108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921867520.7U Active CN212063452U (en) | 2019-10-31 | 2019-10-31 | Cable joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212063452U (en) |
-
2019
- 2019-10-31 CN CN201921867520.7U patent/CN212063452U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU756837C (en) | Hose connector and threaded collar therefor | |
| CN103851559B (en) | Watertight light fitting and cable adapter structure thereof | |
| DK161477B (en) | HOSE OR PIPE CONNECTOR | |
| US7544105B2 (en) | Cable and cable connection assembly | |
| JP4939826B2 (en) | How to assemble pipe fittings | |
| CN212063452U (en) | Cable joint | |
| CN118074016A (en) | Traction structure, cable traction device and waterproof cable | |
| KR101391930B1 (en) | Coupling for spiral pipe | |
| RU155936U1 (en) | EXPLOSION CABLE INPUT | |
| CN218408858U (en) | Through-wall pipeline sealing structure | |
| WO2016064118A1 (en) | Pipe connection socket | |
| CN212323693U (en) | Waterproof fixed joint of broadband line crystal head cable | |
| CN212323696U (en) | Three-way hollow wiring maintenance function and corrugated pipe double-protection fixed joint | |
| CN210830972U (en) | Anti-slip ring, connecting assembly, anti-slip assembly and connecting pipe fitting | |
| CN219420277U (en) | Waterproof split type fixing joint for metal coiled pipe and cable double-locking inner cable | |
| CN218386766U (en) | Waterproof splicing sleeve | |
| CN219473026U (en) | Hose connector with cathode protection | |
| CN219120004U (en) | Double-sealing wall penetrating pipe fitting sealing piece | |
| CN215981278U (en) | Flange type copper hoop pipe joint | |
| CN218236499U (en) | Pipeline connecting fitting | |
| CN217335015U (en) | Underwater cable sealing joint | |
| CN211449995U (en) | Flange four-way joint with good sealing effect | |
| CN212899430U (en) | Sleeve coupling device | |
| CN220540544U (en) | Stainless steel corrugated pipe joint | |
| KR20180064939A (en) | pipe connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |