CN217476543U - Three-layer co-extrusion equipment for automatically producing cables for medium-voltage distribution network - Google Patents
Three-layer co-extrusion equipment for automatically producing cables for medium-voltage distribution network Download PDFInfo
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- CN217476543U CN217476543U CN202123240513.4U CN202123240513U CN217476543U CN 217476543 U CN217476543 U CN 217476543U CN 202123240513 U CN202123240513 U CN 202123240513U CN 217476543 U CN217476543 U CN 217476543U
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Abstract
The utility model belongs to the technical field of power equipment, especially, relate to cable automated production three-layer is crowded equipment altogether for medium voltage distribution network, including the three-layer machine head of crowded altogether, the three-layer is crowded aircraft nose interpolation altogether and is equipped with the cable, the three-layer is crowded aircraft nose altogether all stretched out at the both ends of cable, the adjustable guiding mechanism of left end fixedly connected with of the three-layer is crowded aircraft nose altogether. The utility model discloses can avoid cable and three-layer to crowd aircraft nose looks mutual friction altogether, effectually avoid the cable to get into the three-layer and crowd impaired problem when the aircraft nose altogether, the effectual flexibility that improves the installation of three-layer crowded aircraft nose altogether.
Description
Technical Field
The utility model belongs to the technical field of power equipment, a cable automated production three-layer is crowded equipment altogether for medium voltage distribution network is related to.
Background
The medium-voltage distribution network is a power distribution network commonly used in cities, a large number of cables are needed in the medium-voltage distribution network, three-layer co-extrusion equipment is needed to be used for extrusion forming in the production and processing processes of the cables, and the three-layer co-extrusion equipment can assemble a metal cable core and an insulating layer together, so that the cables can be formed.
When the existing three-layer co-extrusion machine head is used, when a cable enters the three-layer co-extrusion machine head, the cable lacks of guidance, the cable is easy to obliquely enter the three-layer co-extrusion machine head, and therefore the joint of the cable and the three-layer co-extrusion machine head generates large friction, the surface of the cable is easy to damage, and the product quality of the cable is reduced.
Disclosure of Invention
The utility model aims at the above-mentioned problem, provide cable automated production three-layer crowded equipment altogether for the middling pressure distribution network.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the three-layer co-extrusion equipment for the automatic production of the cable for the medium-voltage distribution network comprises a three-layer co-extrusion machine head, wherein the cable is inserted into the three-layer co-extrusion machine head, two ends of the cable extend out of the three-layer co-extrusion machine head, and an adjustable guide mechanism is fixedly connected to the left end of the three-layer co-extrusion machine head;
the adjustable guide mechanism comprises a U-shaped plate fixedly connected to the left end of the three-layer co-extrusion machine head, the vertical side wall of the U-shaped plate is provided with a threading hole corresponding to the cable, the cable penetrates through the U-shaped plate through the threading holes, threaded holes are formed in the side wall of one side of the U-shaped plate opposite to the U-shaped plate, adjusting screws are sleeved in the two threaded holes in a threaded manner, both ends of the adjusting screw rod extend out of the threaded holes, one end of the adjusting screw rod close to the cable is rotatably connected with a U-shaped mounting plate, a fixed shaft is fixedly connected between the side walls of the opposite sides of the U-shaped mounting plate, a guide wheel is movably sleeved outside the fixed shaft, the cable is positioned between the two guide wheels, the horizontal side wall of the U-shaped mounting plate is symmetrically and fixedly connected with two limiting rods, two limiting holes are symmetrically formed in the side wall of one side, opposite to the U-shaped plate, of the side wall, and the limiting rods penetrate through the U-shaped plate through the limiting holes.
In foretell cable automated production three-layer is crowded equipment altogether for medium voltage distribution network, the downside fixedly connected with fixed plate of three-layer is crowded aircraft nose altogether, bolt fixedly connected with connecting plate is passed through to the downside of fixed plate, the downside fixedly connected with erection column of connecting plate, the lower extreme of erection column is provided with the mount pad, a plurality of pinholes have been seted up to the downside of mount pad, the post wall fixed cover that the erection column is close to the lower extreme is equipped with the collar plate, two jacks have been seted up to the downside symmetry of collar plate, two locking screw has been cup jointed in the jack equal activity, locking screw's pole wall fixedly connected with clamp plate, a plurality of and locking screw assorted locking screw, a plurality of are seted up to the upside of mount pad the locking screw is the annular and distributes.
In foretell medium voltage is cable automated production three-layer is crowded equipment altogether for distribution network, the shaft hole has been seted up on the U type mounting panel, adjusting screw passes through the bearing and is connected with the pore wall rotation in shaft hole.
In the above-mentioned cable automated production three-layer is crowded equipment altogether for medium voltage distribution network, the one end fixedly connected with hand wheel of U type mounting panel is kept away from to adjusting screw.
In the automatic three-layer co-extrusion production equipment for the cable for the medium voltage distribution network, two triangular rib plates are symmetrically and fixedly connected between the U-shaped plate and the three-layer co-extrusion machine head.
In foretell medium voltage distribution is cable automated production three-layer altogether equipment for net, two internal thread section of thick bamboo of downside symmetry fixedly connected with of three-layer is crowded aircraft nose altogether, internal thread section of thick bamboo internal thread has cup jointed the supporting screw, the internal thread section of thick bamboo is stretched out to the lower extreme of supporting screw, two push rods of the pole wall symmetry fixedly connected with of supporting screw.
In foretell medium voltage is cable automated production three-layer crowded equipment altogether for distribution network, two installation screws have been seted up to the upside symmetry of three-layer crowded aircraft nose altogether, the double-screw bolt has been cup jointed to the installation screw internal thread, installation screw and fixedly connected with rings are stretched out to the upper end of double-screw bolt.
In foretell cable automated production three-layer is crowded equipment altogether for medium voltage distribution network, the upside fixedly connected with locating piece of connecting plate, the locating hole has been seted up to the downside of fixed plate, the locating piece passes through the fixed plate through the locating hole, the upside fixedly connected with fixed column of mount pad, the slot has been seted up to the lower extreme of erection column, the fixed column is located the slot.
In foretell medium voltage is cable automated production three-layer altogether equipment for distribution network, the downside fixedly connected with solid fixed ring of three-layer is crowded aircraft nose altogether, gu fixed ring goes up fixedly connected with wire, the lower extreme fixedly connected with metal ball of wire.
In the three-layer co-extrusion equipment for automatically producing the cable for the medium-voltage distribution network, the two operating rods are symmetrically and fixedly connected to the rod wall of the locking screw rod close to the upper end.
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses an adjustable guiding mechanism who sets up, during the use, rotate two adjusting screw, screw-thread fit between through adjusting screw and screw hole, make two adjusting screw be close to each other, because adjusting screw rotates with U type mounting panel to be connected, and mutually support through gag lever post and spacing hole, can avoid U type mounting panel to follow adjusting screw and rotate, adjusting screw drives U type mounting panel and removes, U type mounting panel drives the fixed axle and removes, the fixed axle drives the leading wheel and removes, two leading wheels mutually support, can lead the cable, thereby can make the cable level get into three-layer coextrusion aircraft nose, can avoid cable and three-layer coextrusion aircraft nose looks mutual friction, the effectual impaired problem when having avoided the cable to get into three-layer coextrusion aircraft nose.
2. The utility model discloses a fixed plate, connecting plate, erection column, mount pad, pinhole, circle board, jack, locking screw, clamp plate and the locking screw that sets up, during the use, twist and move two locking screw, make locking screw break away from the locking screw, remove locking screw to the fixed of circle board, rotate the three-layer and crowd the aircraft nose altogether to the installation direction of adjustment three-layer crowded aircraft nose that can be quick, the effectual flexibility that improves the installation of three-layer crowded aircraft nose altogether.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the adjustable guide mechanism of fig. 1.
Fig. 3 is a schematic structural view of a portion a in fig. 1.
Fig. 4 is a schematic structural view of a portion B in fig. 1.
In the figure: the three-layer co-extrusion machine head 1, the cable 2, the adjustable guide mechanism 3, the U-shaped plate 31, the threading hole 32, the threaded hole 33, the adjusting screw 34, the U-shaped mounting plate 35, the fixed shaft 36, the guide wheel 37, the limiting rod 38, the limiting hole 39, the fixed plate 4, the connecting plate 5, the mounting column 6, the mounting seat 7, the pin hole 8, the ring plate 9, the jack 10, the locking screw 11, the pressing plate 12, the locking screw 13, the shaft hole 14, the hand wheel 15, the triangular rib plate 16, the internal thread cylinder 17, the supporting screw 18, the push rod 19, the mounting screw 20, the stud 21, the lifting ring 22, the positioning block 23, the positioning hole 24, the fixed column 25, the slot 26, the fixing ring 27, the conducting wire 28, the metal ball 29 and the operating rod 30.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-4, the three-layer co-extrusion equipment for the cable automatic production for the medium voltage distribution network comprises a three-layer co-extrusion machine head 1, wherein a cable 2 is inserted into the three-layer co-extrusion machine head 1, two ends of the cable 2 extend out of the three-layer co-extrusion machine head 1, and an adjustable guide mechanism 3 is fixedly connected to the left end of the three-layer co-extrusion machine head 1;
the adjustable guide mechanism 3 comprises a U-shaped plate 31 fixedly connected to the left end of the three-layer co-extrusion machine head 1, wherein a threading hole 32 corresponding to the cable 2 is formed in the vertical side wall of the U-shaped plate 31, the cable 2 penetrates through the U-shaped plate 31 through the threading hole 32, threaded holes 33 are formed in the side wall of one side, opposite to the U-shaped plate 31, of the two U-shaped plates 33, adjusting screws 34 are sleeved in the threaded holes 33 in a threaded manner, the threaded holes 33 are extended out of the two ends of the adjusting screws 34, one end, close to the cable 2, of each adjusting screw 34 is rotatably connected with a U-shaped mounting plate 35, a shaft hole 14 is formed in each U-shaped mounting plate 35, each adjusting screw 34 is rotatably connected with the hole wall of the shaft hole 14 through a bearing, the same fixed shaft 36 is fixedly connected between the side walls of the opposite to the U-shaped mounting plates 35, a guide wheel 37 is movably sleeved outside the fixed shaft 36, and the cable 2 is positioned between the two guide wheels 37, two gag lever posts 38 of U type mounting panel 35's horizontal lateral wall symmetry fixedly connected with, two spacing holes 39 have all been seted up to the equal symmetry of lateral wall on one side that U template 31 is relative, gag lever post 38 runs through U template 31 through spacing hole 39.
In this embodiment, during the use, rotate two adjusting screw 34, through the screw-thread fit between adjusting screw 34 and screw hole 33, make two adjusting screw 34 be close to each other, because adjusting screw 34 rotates with U type mounting panel 35 and is connected, and mutually support through gag lever post 38 and spacing hole 39, can avoid U type mounting panel 35 to follow adjusting screw 34 and rotate, adjusting screw 34 drives U type mounting panel 35 and removes, U type mounting panel 35 drives fixed axle 36 and removes, fixed axle 36 drives leading wheel 37 and removes, two leading wheels 37 mutually support, can lead to cable 2, thereby can make cable 2 level get into three-layer co-extrusion aircraft nose 1, can avoid cable 2 and three-layer co-extrusion aircraft nose 1 looks mutual friction, the effectual impaired problem when having avoided cable 2 to get into three-layer co-extrusion aircraft nose 1.
Three-layer co-extrusion aircraft nose 1's downside fixedly connected with fixed plate 4, bolt fixedly connected with connecting plate 5 is passed through to the downside of fixed plate 4, the downside fixedly connected with erection column 6 of connecting plate 5, the lower extreme of erection column 6 is provided with mount pad 7, a plurality of pinholes 8 have been seted up to the downside of mount pad 7, the post wall fixed cover that erection column 6 is close to the lower extreme is equipped with collar plate 9, two jacks 10, two have been seted up to collar plate 9's downside symmetry locking screw 11 has been cup jointed in the jack 10 equal activity, locking screw 11's pole wall fixedly connected with clamp plate 12, a plurality of and locking screw 11 assorted locking screw 13, a plurality of locking screw 13 is the annular and distributes.
In this embodiment, during the use, twist and move two locking screw 11, make locking screw 11 break away from locking screw 14, remove locking screw 11 to the fixed of circle board 9, rotate three-layer co-extrusion aircraft nose 1 to adjustment three-layer co-extrusion aircraft nose 1's that can be quick installation direction, the effectual flexibility that improves three-layer co-extrusion aircraft nose 1 installation.
And one end of the adjusting screw 34, which is far away from the U-shaped mounting plate 35, is fixedly connected with a hand wheel 15.
In this embodiment, the hand wheel 15 is rotated to drive the adjusting screw 34 to rotate, so that the convenience of rotation of the adjusting screw 34 is improved.
Two triangular rib plates 16 are symmetrically and fixedly connected between the U-shaped plate 31 and the three-layer co-extrusion machine head 1.
In this embodiment, the triangular rib plate 16 can reinforce the U-shaped plate 31, and the stability of the installation of the U-shaped plate 31 is improved.
The lower side of the three-layer co-extrusion machine head 1 is symmetrically and fixedly connected with two internal thread cylinders 17, supporting screws 18 are sleeved on internal threads of the internal thread cylinders 17, the lower ends of the supporting screws 18 extend out of the internal thread cylinders 17, and two push rods 19 are symmetrically and fixedly connected to rod walls of the supporting screws 18.
In this embodiment, during the use, promote push rod 19, push rod 19 drives supporting screw 18 and rotates, mutually supports through supporting screw 18 and an internal thread section of thick bamboo 17 to can make supporting screw 18 move down, make supporting screw 17 and mount pad 7 contact, can support three-layer co-extrusion aircraft nose 1, improved three-layer co-extrusion aircraft nose 1's stability.
Two installation screw holes 20 are symmetrically formed in the upper side of the three-layer co-extrusion machine head 1, a stud 21 is sleeved in the installation screw holes 20 in a threaded mode, and the upper end of the stud 21 extends out of the installation screw holes 20 and is fixedly connected with a hanging ring 22.
In the above embodiment, when the three-layer co-extrusion machine head 1 is used, the stud 21 is screwed into the mounting screw hole 20 to complete the mounting of the hanging ring 22, and the two hanging rings 22 are matched with each other, so that the convenience in hoisting the three-layer co-extrusion machine head 1 can be improved.
The upper side of the connecting plate 5 is fixedly connected with a positioning block 23, the lower side of the fixing plate 4 is provided with a positioning hole 24, the positioning block 23 penetrates through the fixing plate 4 through the positioning hole 24, the upper side of the mounting seat 7 is fixedly connected with a fixing column 25, the lower end of the mounting column 6 is provided with a slot 26, and the fixing column 25 is located in the slot 26.
In this embodiment, mutually support through locating piece 23 and locating hole 24, can improve the convenience that fixed plate 4 and connecting plate 5 are connected, mutually support through fixed column 25 and slot 26, can improve the stability and the convenience that the erection column is connected with mount pad 7.
The lower side of the three-layer co-extrusion machine head 1 is fixedly connected with a fixing ring 27, the fixing ring 27 is fixedly connected with a wire 28, and the lower end of the wire 28 is fixedly connected with a metal ball 29.
In the above embodiment, the static electricity on the three-layer co-extrusion handpiece 1 is conducted to the conducting wire 28 through the fixing ring 27, and the conducting wire 28 transmits the static electricity to the metal ball 29, so that the static electricity can be conducted, and the use safety of the three-layer co-extrusion handpiece 1 is improved.
Two operating rods 30 are symmetrically and fixedly connected to the rod wall of the locking screw rod 11 close to the upper end.
In this example, two operating levers 30 are pushed to drive the locking screw 11 to rotate, so that the convenience of operation of the locking screw 11 is improved, and the convenience of use of the equipment is improved.
The utility model discloses a theory of operation is:
during the use, two adjusting screw 34 are rotated, through the screw thread fit between adjusting screw 34 and screw hole 33, two adjusting screw 34 are made to be close to each other, because adjusting screw 34 is connected with U type mounting panel 35 rotation, and mutually support through gag lever post 38 and spacing hole 39, can avoid U type mounting panel 35 to follow adjusting screw 34 and rotate, adjusting screw 34 drives U type mounting panel 35 and removes, U type mounting panel 35 drives fixed axle 36 and removes, fixed axle 36 drives leading wheel 37 and removes, two leading wheels 37 mutually support, can lead to cable 2, thereby can make cable 2 level get into three-layer co-extrusion aircraft nose 1, can avoid cable 2 and three-layer co-extrusion aircraft nose 1 looks mutual friction, the effectual impaired problem when avoiding cable 2 to get into three-layer co-extrusion aircraft nose 1.
During the use, twist and move two locking screw 11, make locking screw 11 break away from locking screw 14, remove locking screw 11 to the fixed of circle board 9, rotate three-layer co-extrusion aircraft nose 1 to the installation direction of adjustment three-layer co-extrusion aircraft nose 1 that can be quick, the effectual flexibility that improves three-layer co-extrusion aircraft nose 1 installation.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the spirit of the invention.
Although the terms of the three-layer co-extrusion head 1, the cable 2, the adjustable guide mechanism 3, the U-shaped plate 31, the threading hole 32, the threaded hole 33, the adjusting screw 34, the U-shaped mounting plate 35, the fixed shaft 36, the guide wheel 37, the limiting rod 38, the limiting hole 39, the fixed plate 4, the connecting plate 5, the mounting post 6, the mounting seat 7, the pin hole 8, the ring plate 9, the jack 10, the locking screw 11, the pressing plate 12, the locking screw hole 13, the shaft hole 14, the hand wheel 15, the triangular rib plate 16, the internal thread cylinder 17, the supporting screw 18, the push rod 19, the mounting screw hole 20, the stud 21, the hanging ring 22, the positioning block 23, the positioning hole 24, the fixing column 25, the slot 26, the fixing ring 27, the lead wire 28, the metal ball 29, the operating rod 30 and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is contrary to the spirit of the present invention.
Claims (10)
1. The three-layer co-extrusion equipment for the cable automatic production for the medium-voltage distribution network comprises a three-layer co-extrusion machine head (1), and is characterized in that a cable (2) is inserted into the three-layer co-extrusion machine head (1), two ends of the cable (2) extend out of the three-layer co-extrusion machine head (1), and an adjustable guide mechanism (3) is fixedly connected to the left end of the three-layer co-extrusion machine head (1);
the adjustable guide mechanism (3) comprises a U-shaped plate (31) fixedly connected to the left end of the three-layer co-extrusion machine head (1), threading holes (32) corresponding to the cables (2) are formed in the vertical side wall of the U-shaped plate (31), the cables (2) penetrate through the U-shaped plate (31) through the threading holes (32), threaded holes (33) are formed in the side wall of one side, opposite to the U-shaped plate (31), two adjusting screws (34) are sleeved in the threaded holes (33) in a threaded manner, the threaded holes (33) are extended out of the two ends of the adjusting screws (34), one end, close to the cables (2), of each adjusting screw (34) is rotatably connected with a U-shaped mounting plate (35), the same fixed shaft (36) is fixedly connected between the side walls of one side, opposite to the U-shaped mounting plate (35), a guide wheel (37) is movably sleeved outside the fixed shaft (36), and the cables (2) are located between the guide wheels (37), two gag lever posts (38) of the symmetrical fixedly connected with of horizontal lateral wall of U type mounting panel (35), two spacing holes (39) have all been seted up to the equal symmetry of lateral wall on one side that U template (31) is relative, gag lever post (38) run through U template (31) through spacing hole (39).
2. The automatic three-layer co-extrusion equipment for the cables for the medium voltage distribution network, according to claim 1, is characterized in that a fixing plate (4) is fixedly connected to the lower side of the three-layer co-extrusion machine head (1), a connecting plate (5) is fixedly connected to the lower side of the fixing plate (4) through bolts, a mounting column (6) is fixedly connected to the lower side of the connecting plate (5), a mounting seat (7) is arranged at the lower end of the mounting column (6), a plurality of pin holes (8) are formed in the lower side of the mounting seat (7), a ring plate (9) is fixedly sleeved on the column wall of the mounting column (6) close to the lower end, two insertion holes (10) are symmetrically formed in the lower side of the ring plate (9), locking screw rods (11) are movably sleeved in the two insertion holes (10), a pressing plate (12) is fixedly connected to the rod wall of the locking screw rods (11), a plurality of locking screw holes (13) matched with the locking screw rods (11) are formed in the upper side of the mounting seat (7), a plurality of locking screw holes (13) are distributed annularly.
3. The automatic three-layer co-extrusion production equipment for the cables for the medium voltage distribution network, according to claim 2, is characterized in that the U-shaped mounting plate (35) is provided with a shaft hole (14), and the adjusting screw (34) is rotatably connected with the wall of the shaft hole (14) through a bearing.
4. The automatic three-layer co-extrusion production equipment for the cables for the medium voltage distribution network, according to claim 3, is characterized in that a hand wheel (15) is fixedly connected to one end, far away from the U-shaped mounting plate (35), of the adjusting screw (34).
5. The automatic production three-layer co-extrusion equipment for the cables for the medium voltage distribution network according to claim 4, wherein two triangular rib plates (16) are symmetrically and fixedly connected between the U-shaped plate (31) and the three-layer co-extrusion machine head (1).
6. The automatic three-layer co-extrusion equipment for the cables for the medium voltage distribution network of claim 5, wherein two internal thread barrels (17) are symmetrically and fixedly connected to the lower side of the three-layer co-extrusion machine head (1), a support screw (18) is sleeved in an internal thread of each internal thread barrel (17), the lower end of each support screw (18) extends out of each internal thread barrel (17), and two push rods (19) are symmetrically and fixedly connected to the rod wall of each support screw (18).
7. The automatic three-layer co-extrusion production equipment for the cables for the medium voltage distribution network, according to claim 6, is characterized in that two mounting screw holes (20) are symmetrically formed in the upper side of the three-layer co-extrusion machine head (1), a stud (21) is sleeved in the mounting screw holes (20) through internal threads, and the upper end of the stud (21) extends out of the mounting screw holes (20) and is fixedly connected with a hanging ring (22).
8. The automatic three-layer co-extrusion production equipment for the cables for the medium voltage distribution network according to claim 7, wherein a positioning block (23) is fixedly connected to the upper side of the connecting plate (5), a positioning hole (24) is formed in the lower side of the fixing plate (4), the positioning block (23) penetrates through the fixing plate (4) through the positioning hole (24), a fixing column (25) is fixedly connected to the upper side of the mounting seat (7), a slot (26) is formed in the lower end of the mounting column (6), and the fixing column (25) is located in the slot (26).
9. The automatic production three-layer co-extrusion equipment for the cables for the medium voltage distribution network, according to claim 8, is characterized in that a fixing ring (27) is fixedly connected to the lower side of the three-layer co-extrusion machine head (1), a conducting wire (28) is fixedly connected to the fixing ring (27), and a metal ball (29) is fixedly connected to the lower end of the conducting wire (28).
10. The automatic three-layer co-extrusion production equipment for cables for medium voltage distribution networks as recited in claim 9, characterized in that the rod wall of the locking screw (11) near the upper end is symmetrically and fixedly connected with two operating rods (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123240513.4U CN217476543U (en) | 2021-12-21 | 2021-12-21 | Three-layer co-extrusion equipment for automatically producing cables for medium-voltage distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123240513.4U CN217476543U (en) | 2021-12-21 | 2021-12-21 | Three-layer co-extrusion equipment for automatically producing cables for medium-voltage distribution network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217476543U true CN217476543U (en) | 2022-09-23 |
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ID=83303047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123240513.4U Active CN217476543U (en) | 2021-12-21 | 2021-12-21 | Three-layer co-extrusion equipment for automatically producing cables for medium-voltage distribution network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217476543U (en) |
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2021
- 2021-12-21 CN CN202123240513.4U patent/CN217476543U/en active Active
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