CN118157070A - A cable end sealing structure - Google Patents
A cable end sealing structure Download PDFInfo
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- CN118157070A CN118157070A CN202410578120.3A CN202410578120A CN118157070A CN 118157070 A CN118157070 A CN 118157070A CN 202410578120 A CN202410578120 A CN 202410578120A CN 118157070 A CN118157070 A CN 118157070A
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- ring
- cavity
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- wall
- sealing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/04—Cable-end sealings
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Abstract
The invention discloses a cable end sealing structure, which comprises a sealing end block, a clamping device, an input device and a main pushing device; the sealing end block comprises a cylindrical end block body, a sealing front cavity arranged in the middle of the front end of the end block body, and a sealing circular ring arranged on the inner wall of the sealing front cavity, wherein a front annular cavity is further arranged at the outer edge of the front end of the end block body, and a middle annular cavity and a rear annular cavity are sequentially arranged at the rear end of the sealing end block from front to rear; the clamping device comprises a clamping inner ring arranged on the inner wall of the sealing front cavity and positioned behind the sealing circular ring, clamping connecting rods circumferentially distributed on the outer wall of the clamping inner ring and inserted into the front annular cavity, and a clamping outer ring formed on the outer wall of the front annular cavity and connected with the clamping connecting rods; the input device is arranged in the rear annular cavity; the main pushing device is arranged in the middle annular cavity, and the input device drives the main pushing device to act so as to push the clamping outer ring to move forwards.
Description
Technical Field
The application relates to the technical field of machinery, in particular to a cable end sealing structure.
Background
Cable end seals are important measures to ensure that the cable is not affected by the external environment during the connection process, in particular to prevent moisture intrusion and to maintain insulation properties. The method and the material for sealing the end part of the cable are various, the traditional technology realizes simple sealing mostly through sealant or sealing belt, the scheme is extremely easy to leave glue marks, and the sealing effect is limited. There are also technical schemes to provide a sealing terminal, but the structure is simple, the operation mode is single, and different operation modes can not be designed according to different working conditions.
Disclosure of Invention
A cable end seal structure comprising:
The sealing end block comprises a cylindrical end block body, a sealing front cavity arranged in the middle of the front end of the end block body, and a sealing circular ring arranged on the inner wall of the sealing front cavity, wherein a front annular cavity is further arranged at the outer edge of the front end of the end block body, and a middle annular cavity and a rear annular cavity are sequentially arranged at the rear end of the sealing end block from front to rear;
As a further embodiment:
The rear end of the sealing ring is provided with a driven conical surface which gradually inclines forwards from inside to outside, and the front end of the clamping inner ring is provided with a driving conical surface matched with the driven inclined surface.
As a further embodiment:
The outer edge of the sealing ring is also provided with an attitude keeping ring made of hard materials.
The clamping device comprises a clamping inner ring arranged on the inner wall of the sealing front cavity and positioned behind the sealing circular ring, clamping connecting rods circumferentially distributed on the outer wall of the clamping inner ring and inserted into the front annular cavity, and a clamping outer ring formed on the outer wall of the front annular cavity and connected with the clamping connecting rods;
The input device is arranged in the rear annular cavity;
the main pushing device is arranged in the middle annular cavity, and the input device drives the main pushing device to act so as to push the clamping outer ring to move forwards.
As a further embodiment:
The middle ring cavity is internally provided with a middle cavity convex ring, the rear end of the middle ring cavity is provided with a middle cavity rear ring, the inner wall of the middle ring cavity is also provided with a middle cavity ring groove, and the right side edge of the rear ring cavity is provided with a worm jack in a vertical penetrating way.
As a further embodiment:
the input device includes:
the input worm is rotatably arranged in the worm jack;
The driven worm wheel comprises a worm wheel body which is rotatably arranged in the rear annular cavity and meshed with the input worm, and a transmission key hole formed in the inner wall of the worm wheel body;
The driving ring comprises a ring body rotatably arranged in the middle cavity rear ring, a transmission plug formed on the lower edge of the outer wall of the ring body and inserted into the transmission key hole, a transmission ring formed on the upper edge of the outer wall of the ring body, and a driven ring groove formed on the inner wall of the ring body;
The switching device comprises an adjusting cavity arranged at the rear end of the end block body, a side connecting hole arranged on the side surface of the adjusting cavity and communicated with the middle annular cavity, a rear opening arranged at the rear end of the adjusting cavity, an external threaded rod rotatably arranged in the adjusting cavity, an internal threaded ring slidably sleeved on the external threaded rod, a translation inserted link formed on the outer wall of the internal threaded ring and penetrating through the side connecting hole, and a driven annular slot inserted into the end part of the translation inserted link, wherein the switching device further comprises a rear mandrel arranged at the rear end of the external threaded rod and penetrating through the rear opening, and a torsion terminal formed at the rear end of the rear mandrel.
As a further embodiment:
The main pushing device comprises:
The main pushing tooth ring comprises a first circular ring rotatably arranged on the inner wall of the middle cavity, an annular external gear formed on the outer edge of the first circular ring, and a main connecting ring formed on the lower edge of the annular external gear and in transmission connection with the upper end surface of the transmission circular ring, wherein a main pushing convex ring matched with the middle cavity circular groove is formed on the inner wall of the first circular ring;
The main pushing rotating shaft is circumferentially and uniformly distributed in the end block body and comprises a main pushing mandrel, a main pushing screw rod and a main pushing gear, wherein the main pushing mandrel is communicated with a middle annular cavity and a front annular cavity, the main pushing screw rod is formed at the front end of the main pushing mandrel, and the main pushing gear is formed at the rear end of the main pushing mandrel and meshed with the annular external gear;
the main sliding ring comprises a main sliding spiral ring which is in threaded connection with the main sliding screw rod, a main sliding rod which is formed on the side surface of the main sliding spiral ring, and a main sliding side hole which is arranged on the side wall of the front annular cavity along the front-back direction and is in inserted connection with the main sliding rod, wherein the main sliding rod is propped against the lower part of the clamping outer ring.
As a further embodiment:
The auxiliary pushing device is also included, and the auxiliary pushing device includes:
The auxiliary pushing tooth ring comprises a second circular ring arranged on the outer wall of the middle circular ring cavity, an annular inner gear arranged on the inner wall of the second circular ring, an auxiliary connecting ring formed on the lower edge of the second circular ring and in transmission connection with the lower end face of the transmission circular ring, and an auxiliary pushing ring groove formed on the outer wall of the second circular ring and in rotatable fit with the middle circular ring;
The auxiliary pushing rotating shafts are circumferentially and uniformly distributed in the end block body, correspond to the main pushing rotating shafts one by one and are distributed in a crossed manner, and comprise auxiliary pushing core shafts which are communicated with a middle annular cavity and a front annular cavity, auxiliary pushing screw rods formed at the front ends of the auxiliary pushing core shafts and auxiliary pushing gears formed at the rear ends of the auxiliary pushing core shafts and meshed with the annular internal gears;
The auxiliary pushing sliding ring comprises an auxiliary pushing spiral ring which is in threaded connection with the auxiliary pushing screw rod, an auxiliary pushing side rod which is formed on the side surface of the auxiliary pushing spiral ring, and an auxiliary pushing side hole which is arranged on the side wall of the front annular cavity along the front-back direction and is in inserted connection with the auxiliary pushing side rod, wherein the auxiliary pushing side rod is propped against the lower part of the clamping outer ring.
The beneficial effects are that:
according to the cable sealing end, the sealing ring can be driven to deform through the back-and-forth movement of the clamping device, and then the end part of the cable is sealed.
The cable sealing end is characterized in that the input device can select one of the main pushing device and the auxiliary pushing device to act, so that clamping actions with different rates are realized, and cables with different diameters are adapted to:
The switching device can realize the forward and backward movement of the driving circular ring, so that the driving circular ring is meshed with the main connecting ring or the auxiliary connecting ring, and the input device is meshed with the main pushing device or the auxiliary pushing device; and because the pitches of the main pushing screw rod and the auxiliary pushing screw rod are different, when the input screw rod inputs at the same rotating speed, the action speed of the main pushing device is different from that of the auxiliary pushing device, and finally, the clamping actions with different speeds are realized.
Drawings
FIG. 1 is a top view of one embodiment of the seal head.
FIG. 2 is a front view of an embodiment of the seal head.
Figure 3 is a cross-sectional view of one embodiment of section A-A of figure 2.
Fig. 4 is a cross-sectional view of another embodiment of section A-A of fig. 2 (only the sealing end block is shown).
Fig. 5 is a half-sectional view of one embodiment of section A-A of fig. 2.
Fig. 6 is a half-sectional view of yet another embodiment of section A-A of fig. 2.
Fig. 7 is an enlarged schematic view of the portion C in fig. 5.
FIG. 8 is a cross-sectional view of one embodiment of the section D-D of FIG. 3.
FIG. 9 is a cross-sectional view of one embodiment of section E-E of FIG. 3.
FIG. 10 is a cross-sectional view of one embodiment of section F-F of FIG. 3.
FIG. 11 is a cross-sectional view of one embodiment of section B-B of FIG. 2.
Fig. 12 is a cross-sectional view of another embodiment of section B-B of fig. 2.
In the figure:
m, a cable;
1. The sealing end block comprises an end block body 11, a sealing front cavity 12, a sealing circular ring 14, a front annular cavity 15, a middle annular cavity 15a, a middle annular convex ring 15b, a middle annular cavity 15c, a middle annular groove 16, a rear annular cavity 16a and a worm jack;
2. An input device;
21. inputting a worm;
22. a driven worm wheel 22a, a worm wheel body 22b, a transmission key hole;
23. the driving ring, 23a, the ring body, 23b, the driving plug, 23c, the driving ring, 23d, the driven ring groove;
24. Switching device 24a, adjusting chamber 24b, side connecting hole 24c, rear opening 24d, external threaded rod 24e, internal threaded ring 24f, translational insert rod 24g, rear mandrel 24h, torsion terminal;
3. A main pushing device;
31. A main pushing toothed ring 31a, a first circular ring 31b, an annular external gear 31c, a main connecting ring 31d and a main pushing convex ring;
32. A main pushing rotating shaft 32a, a main pushing mandrel 32b, a main pushing screw rod 32c and a main pushing gear;
33. A main pushing slip ring 33a, a main pushing spiral ring 33b, a main pushing side rod 33c and a main pushing side hole;
4. The auxiliary pushing device comprises an auxiliary pushing gear ring 41a, a second circular ring 41b, an annular internal gear 41c, an auxiliary connecting ring 41d, an auxiliary pushing ring groove 42, an auxiliary pushing rotating shaft 42a, an auxiliary pushing mandrel 42b, an auxiliary pushing screw rod 42c, an auxiliary pushing gear wheel 43, an auxiliary pushing slip ring 43a, an auxiliary pushing spiral ring 43b, an auxiliary pushing side rod 43c and an auxiliary pushing side hole;
5. Clamping means, 51, clamping inner ring, 52, clamping connecting rod, 53, clamping outer ring.
Detailed Description
A cable end seal structure comprising:
The sealing end block 1 comprises a cylindrical end block body 11, a sealing front cavity 12 arranged in the middle of the front end of the end block body 11, and a sealing circular ring 13 arranged on the inner wall of the sealing front cavity 12, wherein a front annular cavity 14 is further arranged on the outer edge of the front end of the end block body 11, and a middle annular cavity 15 and a rear annular cavity 16 are sequentially arranged at the rear end of the sealing end block 1 from front to rear;
As a further embodiment:
The rear end of the sealing ring 13 is formed with a driven conical surface which gradually inclines forwards from inside to outside, and the front end of the clamping inner ring 51 is provided with a driving conical surface matched with the driven inclined surface.
As a further embodiment:
the outer edge of the sealing ring 13 is also provided with an attitude keeping ring made of hard materials.
The clamping device 5 comprises a clamping inner ring 51 arranged on the inner wall of the sealing front cavity 12 and positioned behind the sealing circular ring 13, clamping connecting rods 52 circumferentially uniformly distributed on the outer wall of the clamping inner ring 51 and inserted into the front annular cavity 14, and a clamping outer ring 53 formed on the outer wall of the front annular cavity 14 and connected with the clamping connecting rods 52;
An input device 2 disposed in the rear annular chamber 16;
The main pushing device 3 is arranged in the middle annular cavity 15, and the input device 2 drives the main pushing device 3 to act so as to push the clamping outer ring 53 to move forwards.
As a further embodiment:
the middle annular cavity 15 is internally provided with a middle cavity convex ring 15a, the rear end of the middle annular cavity 15 is provided with a middle cavity rear ring 15b, the inner wall of the middle annular cavity 15 is also provided with a middle cavity annular groove 15c, and the right side edge of the rear annular cavity 16 is provided with a worm jack 16a in a vertically penetrating way.
As a further embodiment:
the input device 2 includes:
an input worm 21 rotatably provided in the worm insertion hole 16 a;
The driven worm wheel 22 comprises a worm wheel body 22a rotatably arranged in the rear annular cavity 16 and meshed with the input worm 21, and a transmission key hole 22b formed on the inner wall of the worm wheel body 22 a;
The driving ring 23 comprises a ring body 23a rotatably arranged in the middle cavity rear ring 15b, a transmission plug 23b formed on the lower edge of the outer wall of the ring body 23a and inserted into the transmission key hole 22b, a transmission ring 23c formed on the upper edge of the outer wall of the ring body 23a, and a driven ring groove 23d formed on the inner wall of the ring body 23 a;
The switching device 24 comprises an adjusting chamber 24a arranged at the rear end of the end block body 11, a side connecting hole 24b arranged on the side surface of the adjusting chamber 24a and communicated with the middle annular cavity 15, a rear opening 24c arranged at the rear end of the adjusting chamber 24a, an externally threaded rod 24d rotatably arranged in the adjusting chamber 24a, an internally threaded ring 24e slidably sleeved on the externally threaded rod 24d, a translation inserting rod 24f formed on the outer wall of the internally threaded ring 24e and penetrating through the side connecting hole 24b, wherein the end part of the translation inserting rod 24f is inserted into the driven annular groove 23d, and the switching device 24 further comprises a rear mandrel 24g arranged at the rear end of the externally threaded rod 24d and penetrating through the rear opening 24c and a torsion terminal 24h formed at the rear end of the rear mandrel 24 g.
As a further embodiment, the input worm 21 may be connected to a mechanical rocker arm or to a motor, and the swimsuit achieves the turning action of the input worm 21.
As a further embodiment:
the main pushing device 3 includes:
The main pushing toothed ring 31 comprises a first circular ring 31a rotatably arranged on the inner wall of the middle annular cavity 15, an annular outer gear 31b formed on the outer edge of the first circular ring 31a, and a main connecting ring 31c formed on the lower edge of the annular outer gear 31b and in transmission connection with the upper end surface of the transmission circular ring 23c, wherein a main pushing convex ring 31d matched with the middle annular cavity 15c is formed on the inner wall of the first circular ring 31 a;
The main pushing rotating shaft 32 is circumferentially and uniformly distributed in the end block body 11 and comprises a main pushing mandrel 32a, a main pushing screw rod 32b and a main pushing gear 32c, wherein the main pushing mandrel 32a is arranged in a way of communicating the middle annular cavity 15 with the front annular cavity 14, the main pushing screw rod 32b is formed at the front end of the main pushing mandrel 32a, and the main pushing gear 32c is formed at the rear end of the main pushing mandrel 32a and meshed with the annular external gear 31 b;
The main pushing slip ring 33 comprises a main pushing spiral ring 33a screwed on the main pushing screw rod 32b, a main pushing side rod 33b formed on the side surface of the main pushing spiral ring 33a, and a main pushing side hole 33c arranged on the side wall of the front annular cavity 14 along the front-rear direction and in plug-in fit with the main pushing side rod 33b, wherein the main pushing side rod 33b abuts against the lower part of the clamping outer ring 53.
As a further embodiment:
further comprising a secondary pushing device 4, said secondary pushing device 4 comprising:
the auxiliary pushing tooth ring 41 comprises a second circular ring 41a arranged on the outer wall of the middle circular ring cavity 15, an annular inner gear 41b arranged on the inner wall of the second circular ring 41a, an auxiliary connecting ring 41c formed on the lower edge of the second circular ring 41a and in transmission connection with the lower end face of the transmission circular ring 23c, and an auxiliary pushing ring groove 41d formed on the outer wall of the second circular ring 41a and in rotatable fit with the middle circular ring 15 a;
the auxiliary pushing rotating shafts 42 are circumferentially and uniformly distributed in the end block body 11, are in one-to-one correspondence with the main pushing rotating shafts 32 and are in crossed distribution, and the auxiliary pushing rotating shafts 42 comprise auxiliary pushing core shafts 42a which are arranged in a way of communicating the middle annular cavity 15 with the front annular cavity 14, auxiliary pushing screw rods 42b which are formed at the front ends of the auxiliary pushing core shafts 42a, and auxiliary pushing gears 42c which are formed at the rear ends of the auxiliary pushing core shafts 42a and are meshed with the annular internal gear 41 b;
the auxiliary pushing slip ring 43 comprises an auxiliary pushing spiral ring 43a screwed on the auxiliary pushing screw rod 42b, an auxiliary pushing side rod 43b formed on the side surface of the auxiliary pushing spiral ring 43a, and an auxiliary pushing side hole 43c arranged on the side wall of the front annular cavity 14 along the front-rear direction and in inserted fit with the auxiliary pushing side rod 43b, wherein the auxiliary pushing side rod 43b abuts against the lower part of the clamping outer ring 53.
As a further embodiment:
The lower end face of the main connecting ring 31c and the upper end face of the auxiliary connecting ring 41c are circumferentially and uniformly provided with radially arranged anti-slip strips;
The upper end face and the lower end face of the transmission circular ring 23c are circumferentially and uniformly provided with radially arranged anti-slip strips.
As a further embodiment:
the pitch of the main pushing screw 32b is larger than that of the auxiliary pushing screw 42 b.
The scheme also discloses a cable end sealing method, which comprises the following steps:
Step 1, inserting an end part of a cable m:
inserting the end of the cable m to be sealed into the sealing ring 13 through the opening of the sealing front cavity 12;
Step 2, quick sealing:
Normally, the driving ring 23 is in transmission connection with the main pushing device 3:
the input worm 21 is rotated to drive the worm wheel body 22a and the transmission key hole 22b to rotate and drive the transmission plug 23b, the circular ring body 23a and the transmission circular ring 23c to rotate;
the transmission ring 23c rotates to drive the main connecting ring 31c, the first ring 31a and the annular external gear 31b to rotate and drive the main pushing gear 32c, the main pushing mandrel 32a and the main pushing screw 32b to rotate;
the main pushing screw rod 32b drives the main pushing spiral ring 33a and the main pushing side rod 33b to move upwards, so as to drive the clamping outer ring 53, the clamping connecting rod 52 and the clamping inner ring 51 to move upwards, and the clamping inner ring 51 presses the driven conical surface of the sealing circular ring 13 upwards, so that the sealing circular ring 13 is locked in the front-back direction and seals the cable m inwards along the axial direction;
and 3, accurately sealing:
the driving ring 23 is switched to be in transmission connection with the auxiliary pushing device 4:
The torsion terminal 24h, the rear mandrel 24g and the external threaded rod 24d are rotated, the external threaded rod 24d rotationally drives the internal threaded ring 24e and the translational inserted rod 24f to move backwards, and drives the driven annular groove 23d, the transmission annular ring 23a and the transmission annular ring 23c to move backwards, so that the transmission annular ring 23c is in transmission connection with the auxiliary connecting ring 41c, and the transmission connection between the driving annular ring 23 and the auxiliary pushing toothed ring 41 is realized;
the input worm 21 is rotated to drive the worm wheel body 22a and the transmission key hole 22b to rotate and drive the transmission plug 23b, the circular ring body 23a and the transmission circular ring 23c to rotate;
The transmission ring 23c rotates to drive the auxiliary connecting ring 41c, the second ring 41a and the annular internal gear 41b to rotate, and drives the auxiliary pushing gear 42c, the auxiliary pushing mandrel 42a and the auxiliary pushing screw 42b to rotate;
The auxiliary pushing screw rod 42b drives the auxiliary pushing spiral ring 43a and the auxiliary pushing side rod 43b to move forwards, drives the clamping outer ring 53, the clamping connecting rod 52 and the clamping inner ring 51 to move forwards, and the clamping inner ring 51 presses the driven conical surface of the sealing ring 13 forwards, so that the sealing ring 13 is locked in the front-back direction and seals the cable m inwards along the axial direction.
It should be noted that the above step 2 and step 3 are alternatively applicable:
When the difference between the outer diameter of the cable m and the inner diameter of the sealing ring 13 is large, the quick sealing in the step 2 is selected, and the sealing effect can be achieved by rotating the input worm 21 for a small number of turns; when the outer diameter of the cable m is not different from the inner diameter of the sealing ring 13, the deformation rate and the sealing effect of the sealing ring 13 can be better controlled by selecting the precise sealing in the step 3.
Claims (9)
1. A cable end seal structure, characterized in that: comprising the following steps:
The sealing end block (1) comprises a cylindrical end block body (11), a sealing front cavity (12) arranged in the middle of the front end of the end block body (11) and a sealing circular ring (13) arranged on the inner wall of the sealing front cavity (12), wherein a front annular cavity (14) is further arranged at the outer edge of the front end of the end block body (11), and a middle annular cavity (15) and a rear annular cavity (16) are sequentially arranged at the rear end of the sealing end block (1) from front to rear;
The clamping device (5) comprises a clamping inner ring (51) arranged on the inner wall of the sealing front cavity (12) and positioned behind the sealing circular ring (13), clamping connecting rods (52) circumferentially uniformly distributed on the outer wall of the clamping inner ring (51) and inserted into the front annular cavity (14), and a clamping outer ring (53) formed on the outer wall of the front annular cavity (14) and connected with the clamping connecting rods (52);
the input device (2) is arranged in the rear annular cavity (16);
the main pushing device (3) is arranged in the middle annular cavity (15), and the input device (2) drives the main pushing device (3) to act so as to push the clamping outer ring (53) to move forwards.
2. A cable end sealing arrangement according to claim 1, wherein:
The middle ring cavity (15) is internally provided with a middle cavity convex ring (15 a), the rear end of the middle ring cavity (15) is provided with a middle cavity rear ring (15 b), the inner wall of the middle ring cavity (15) is also provided with a middle cavity ring groove (15 c), and the right side edge of the rear ring cavity (16) is provided with a worm jack (16 a) in an up-down penetrating way.
3. A cable end sealing arrangement according to claim 2, wherein:
The input device (2) comprises:
An input worm (21) rotatably provided in the worm insertion hole (16 a);
The driven worm wheel (22) comprises a worm wheel body (22 a) rotatably arranged in the rear annular cavity (16) and meshed with the input worm (21), and a transmission key hole (22 b) formed in the inner wall of the worm wheel body (22 a);
the driving ring (23) comprises a ring body (23 a) rotatably arranged in the middle cavity rear ring (15 b), a transmission plug (23 b) formed on the lower edge of the outer wall of the ring body (23 a) and inserted into the transmission key hole (22 b), a transmission ring (23 c) formed on the upper edge of the outer wall of the ring body (23 a), and a driven ring groove (23 d) formed on the inner wall of the ring body (23 a);
The switching device (24) comprises an adjusting cavity (24 a) arranged at the rear end of the end block body (11), a side connecting hole (24 b) arranged on the side surface of the adjusting cavity (24 a) and communicated with the middle annular cavity (15), a rear opening (24 c) arranged at the rear end of the adjusting cavity (24 a), an externally threaded rod (24 d) rotatably arranged in the adjusting cavity (24 a), an internally threaded ring (24 e) slidably sleeved on the externally threaded rod (24 d), a translation inserting rod (24 f) formed on the outer wall of the internally threaded ring (24 e) and penetrating through the side connecting hole (24 b), and a torsion terminal (24 h) formed at the rear end of the rear mandrel (24 g), wherein the end of the translation inserting rod (24 f) is inserted into the driven annular groove (23 d), and the rear mandrel (24 g) arranged at the rear end of the externally threaded rod (24 d) and penetrating through the rear opening (24 c).
4. A cable end sealing arrangement according to claim 3, wherein:
The main pushing device (3) comprises:
The main pushing tooth ring (31) comprises a first circular ring (31 a) rotatably arranged on the inner wall of the middle annular cavity (15), an annular outer gear (31 b) formed on the outer edge of the first circular ring (31 a) and a main connecting ring (31 c) formed on the lower edge of the annular outer gear (31 b) and in transmission connection with the upper end face of the transmission circular ring (23 c), wherein a main pushing convex ring (31 d) matched with the middle annular cavity (15 c) is formed on the inner wall of the first circular ring (31 a);
The main pushing rotating shafts (32) are circumferentially and uniformly distributed in the end block body (11) and comprise main pushing spindles (32 a) which are communicated with the middle annular cavity (15) and the front annular cavity (14), main pushing screws (32 b) formed at the front ends of the main pushing spindles (32 a) and main pushing gears (32 c) formed at the rear ends of the main pushing spindles (32 a) and meshed with the annular external gears (31 b);
The main sliding ring (33) comprises a main sliding spiral ring (33 a) which is in threaded connection with the main sliding screw (32 b), a main sliding rod (33 b) which is formed on the side surface of the main sliding spiral ring (33 a), and a main sliding side hole (33 c) which is arranged on the side wall of the front ring cavity (14) along the front-back direction and is in inserted connection with the main sliding rod (33 b), wherein the main sliding rod (33 b) is abutted under the clamping outer ring (53).
5. The cable end seal structure of claim 4, wherein:
further comprising a secondary pushing device (4), the secondary pushing device (4) comprising:
The auxiliary pushing tooth ring (41) comprises a second circular ring (41 a) arranged on the outer wall of the middle circular cavity (15), an annular inner gear (41 b) arranged on the inner wall of the second circular ring (41 a), an auxiliary connecting ring (41 c) formed on the lower edge of the second circular ring (41 a) and in transmission connection with the lower end face of the transmission circular ring (23 c), and an auxiliary pushing ring groove (41 d) formed on the outer wall of the second circular ring (41 a) and in rotatable fit with the middle circular cavity convex ring (15 a);
The auxiliary pushing rotating shafts (42) are circumferentially and uniformly distributed in the end block body (11), correspond to the main pushing rotating shafts (32) one by one and are distributed in a crossed mode, and each auxiliary pushing rotating shaft (42) comprises an auxiliary pushing mandrel (42 a) which is communicated with the middle annular cavity (15) and the front annular cavity (14), an auxiliary pushing screw rod (42 b) formed at the front end of the auxiliary pushing mandrel (42 a) and an auxiliary pushing gear (42 c) which is formed at the rear end of the auxiliary pushing mandrel (42 a) and meshed with the annular inner gear (41 b);
The auxiliary pushing slip ring (43) comprises an auxiliary pushing spiral ring (43 a) which is in threaded connection with the auxiliary pushing screw rod (42 b), an auxiliary pushing side rod (43 b) which is formed on the side surface of the auxiliary pushing spiral ring (43 a), and an auxiliary pushing side hole (43 c) which is arranged on the side wall of the front ring cavity (14) along the front-back direction and is in inserted connection with the auxiliary pushing side rod (43 b), wherein the auxiliary pushing side rod (43 b) is abutted under the clamping outer ring (53).
6. A cable end seal structure according to claim 5, wherein:
the rear end of the sealing ring (13) is provided with a driven conical surface which gradually inclines forwards from inside to outside, and the front end of the clamping inner ring (51) is provided with a driving conical surface matched with the driven conical surface.
7. The cable end seal structure of claim 6, wherein:
the outer edge of the sealing ring (13) is also provided with an attitude keeping ring made of hard materials.
8. The cable end seal arrangement of claim 7, wherein:
anti-slip strips which are radially arranged are circumferentially and uniformly distributed on the lower end face of the main connecting ring (31 c) and the upper end face of the auxiliary connecting ring (41 c);
The upper end face and the lower end face of the transmission circular ring (23 c) are circumferentially and uniformly provided with radially arranged anti-slip strips.
9. A cable end seal according to claim 8, wherein:
the pitch of the main pushing screw rod (32 b) is larger than that of the auxiliary pushing screw rod (42 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410578120.3A CN118157070B (en) | 2024-05-10 | 2024-05-10 | Cable end sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410578120.3A CN118157070B (en) | 2024-05-10 | 2024-05-10 | Cable end sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118157070A true CN118157070A (en) | 2024-06-07 |
| CN118157070B CN118157070B (en) | 2024-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410578120.3A Active CN118157070B (en) | 2024-05-10 | 2024-05-10 | Cable end sealing structure |
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| CN212462755U (en) * | 2020-06-08 | 2021-02-02 | 江苏安胜电缆有限公司 | Cable trench high-voltage cable sealing device |
| CN113708330A (en) * | 2021-09-23 | 2021-11-26 | 国网山东省电力公司广饶县供电公司 | Quick waterproof sealing device of cable end |
| CN115833026A (en) * | 2022-11-30 | 2023-03-21 | 中天科技海缆股份有限公司 | Submarine cable sealing device and submarine cable protection equipment |
| CN116247604A (en) * | 2023-02-17 | 2023-06-09 | 国网山东省电力公司郓城县供电公司 | A cable section protection structure |
| CN220086940U (en) * | 2023-06-09 | 2023-11-24 | 中润通信集团有限公司 | Cable end protecting device |
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2024
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| US20170009917A1 (en) * | 2014-03-20 | 2017-01-12 | Theodor WÜST | Plug-type sleeve |
| DE102015226536A1 (en) * | 2015-12-22 | 2017-06-22 | Bimed Teknik A.S. | Cable gland |
| WO2019053006A1 (en) * | 2017-09-13 | 2019-03-21 | Schlemmer Holding GmbH | FIXING DEVICE |
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| CN210380219U (en) * | 2019-09-17 | 2020-04-21 | 福建捷达电力工程建设有限公司 | Sealing connection device for electrical engineering joint |
| CN212462755U (en) * | 2020-06-08 | 2021-02-02 | 江苏安胜电缆有限公司 | Cable trench high-voltage cable sealing device |
| CN111799580A (en) * | 2020-08-06 | 2020-10-20 | 黄如兰 | High-tightness connector for submarine cable connection |
| CN113708330A (en) * | 2021-09-23 | 2021-11-26 | 国网山东省电力公司广饶县供电公司 | Quick waterproof sealing device of cable end |
| CN115833026A (en) * | 2022-11-30 | 2023-03-21 | 中天科技海缆股份有限公司 | Submarine cable sealing device and submarine cable protection equipment |
| CN116247604A (en) * | 2023-02-17 | 2023-06-09 | 国网山东省电力公司郓城县供电公司 | A cable section protection structure |
| CN220086940U (en) * | 2023-06-09 | 2023-11-24 | 中润通信集团有限公司 | Cable end protecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118157070B (en) | 2024-07-19 |
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