CN215220394U - Alkali-resistant corrosion-resistant insulating sleeve - Google Patents

Alkali-resistant corrosion-resistant insulating sleeve Download PDF

Info

Publication number
CN215220394U
CN215220394U CN202120770831.2U CN202120770831U CN215220394U CN 215220394 U CN215220394 U CN 215220394U CN 202120770831 U CN202120770831 U CN 202120770831U CN 215220394 U CN215220394 U CN 215220394U
Authority
CN
China
Prior art keywords
resistant
layer
side wall
alkali
plate 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
Application number
CN202120770831.2U
Other languages
Chinese (zh)
Inventor
赵章强
张远银
祈长贵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jurong Ctiy Kate Electric Co ltd
Original Assignee
Jurong Ctiy Kate Electric Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jurong Ctiy Kate Electric Co ltd filed Critical Jurong Ctiy Kate Electric Co ltd
Priority to CN202120770831.2U priority Critical patent/CN215220394U/en
Application granted granted Critical
Publication of CN215220394U publication Critical patent/CN215220394U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Details Of Indoor Wiring (AREA)

Abstract

The utility model discloses an alkali-resistant corrosion-resistant insulating sleeve, which comprises a protective component and a locking component, wherein the protective component comprises a sheath layer, a metal braid layer, a waterproof layer, an alkali-resistant layer, a corrosion-resistant layer, a heat-insulating layer and a flame-retardant layer; the inner side wall of the sheath layer is bonded to the outer side wall of the metal braid layer; the utility model discloses when keeping out acid rain and corroding, through the good weatherability of waterproof layer, resistant chemical and ageing-resistant performance and the strong characteristic of waterproof nature, can effectually prevent that the inside entering water of sleeve pipe, can use for a long time at-180 ~ 260 o C through the good characteristics of alkali-fast layer anti-acid alkali-resistance, heat-resisting, cold-resistant nature, improved the utility model discloses an alkali-resistant, the utility model discloses a corrosion-resistant layer is corrosion-resistant, shock attenuation, thermal-insulated characteristic for the inside cable of protective sheath pipe is not corroded by acid rain, reaches the purpose of corroding when keeping out acid rain, and then has improved the utility model discloses an alkali-proof and corrosion-resistant and waterproof nature have reduced the utility model discloses the damage that receives.

Description

Alkali-resistant corrosion-resistant insulating sleeve
Technical Field
The utility model relates to an insulation support technical field specifically is an alkali-resistant corrosion-resistant insulation support.
Background
The sleeve is also called a protection tube and a conduit, is a pipeline for protecting the wiring of electric wires and cables in electrical installation, allows the penetration and replacement of the electric wires and the cables, and is a novel sleeve material popularized and used in power engineering;
the existing sleeve has poor protection performance against acid rain, and the damage of the acid rain to the sleeve is irreversible, so that the interior of a cable cannot be effectively protected, the alkali resistance and the corrosion resistance of the sleeve are low, and the sleeve is easy to damage;
when the existing sleeve is installed and operated, a cable can not be effectively fixed and locked inside the sleeve after penetrating into the sleeve, the cable can easily slide outside the cable, and then the working efficiency of workers is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an alkali-resistant corrosion-resistant insulation support to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an alkali-resistant corrosion-resistant insulating sleeve comprises a protective component and a locking component, wherein the protective component comprises a sheath layer, a metal braid layer, a waterproof layer, an alkali-resistant layer, a corrosion-resistant layer, a heat-insulating layer and a flame-retardant layer;
the inner side wall of the sheath layer is bonded to the outer side wall of the metal braided layer, the inner side wall of the metal braided layer is bonded to the outer side wall of the waterproof layer, the inner side wall of the waterproof layer is bonded to the outer side wall of the alkali-resistant layer, and the inner side wall of the alkali-resistant layer is bonded to the outer side wall of the corrosion-resistant layer;
the locking assembly comprises a circular plate body, a circular groove, a first arc-shaped plate body, a threaded rod, a first circular plate body, a threaded through hole, a first through hole and a first groove.
Preferably: the utility model discloses a cable protective sleeve for cable, including annular plate body, restrictive coating, threaded rod, first circular plate body, annular plate body, two the inside wall symmetry of annular plate body bond in the lateral wall of restrictive coating, circular recess has been seted up to the inside wall of annular plate body, two first recesses have been seted up to the lateral wall symmetry of annular plate body, the screw thread through-hole set up in one side of first circular plate body, first circular plate body pass through the bearing rotate connect in the inside wall of first recess, the lateral wall threaded connection of threaded rod in the inside wall of screw thread through-hole, first through-hole set up in the inside wall of first recess, the lateral wall sliding connection of threaded rod in the inside wall of first through-hole, the one end of threaded rod pass through the bearing rotate connect in first arc plate body, through setting up the threaded rod, conveniently promote first arc plate body fixed cable.
Preferably: the inner side wall of the first groove is evenly embedded with second steel balls, the outer side wall of each second steel ball is attached to one side of the corresponding first circular plate, and friction between the corresponding first circular plate and the corresponding first groove is prevented by the aid of the second steel balls.
Preferably: the welding of one side of first circular plate body has the fixed block, the lower surface welding of fixed block has the L type body of rod, the second recess has evenly been seted up to the inside wall of first recess, through setting up the L type body of rod, makes things convenient for operating personnel rotatory to first circular plate body.
Preferably: the second through-hole has been seted up to one side of fixed block, the inside wall sliding connection of second through-hole has the body of rod, the lateral wall of the body of rod run through in one side of first circular plate body makes things convenient for the body of rod to carry on spacingly to first circular plate body.
Preferably: the inner side wall of the corrosion-resistant layer is bonded to the outer side wall of the heat-insulating layer, the inner side wall of the heat-insulating layer is bonded to the outer side wall of the flame-retardant layer, and the inner side wall of the flame-retardant layer is embedded with first steel balls for protecting the cable from being afraid of high temperature and friction.
Preferably: the welding of the one end of the body of rod has the circular plate body of second, the inside wall symmetrical welding of second through-hole has two second arc plate bodies, through the circular plate body of second and second arc plate body for carry on spacingly to the body of rod.
Preferably: the one end welding that the body of rod kept away from the circular plate body of second has the circular plate body of third, the circular plate body of third is kept away from one side welding of the body of rod has the handle.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a, the utility model discloses when keeping out acid rain corrosion, through the good weatherability of waterproof layer, resistant chemical and ageing-resistant performance and the strong characteristic of waterproof nature, can effectually prevent that the inside entering water of sleeve pipe has improved the waterproof performance, can use for a long time at-180 ~ 260 o C through the good characteristics of alkali-resistant layer anti-acid alkali, heat-resisting, cold resistance, improved the utility model discloses alkali-resistant, the utility model discloses a corrosion-resistant layer is corrosion-resistant, shock attenuation, thermal-insulated characteristic for the inside cable of protective sheath is not corroded by acid rain, reaches the purpose of corroding when keeping out acid rain, and then has improved the utility model discloses an alkali-resistant and corrosion-resistant and waterproof nature have reduced the utility model discloses the damage that receives.
Two, the utility model discloses when fixing the cable, through the mode of rotating first circular plate body, drive the threaded rod at the screw through-hole internal rotation, make the threaded rod inwards promote first arc plate body and press from both sides tight cable, reach the purpose of fixing locking to the cable, avoid sliding in the outside of cable easily, and then reduce staff's work efficiency.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side view of the present invention;
fig. 3 is a schematic structural view of the locking assembly of the present invention;
FIG. 4 is a schematic view of the structure of area A of FIG. 3 according to the present invention;
FIG. 5 is a schematic view of the structure of the area B in FIG. 4 according to the present invention;
fig. 6 is the side view internal structure of the circular plate of the present invention.
In the figure: 1. a guard assembly; 101. a sheath layer; 102. a metal braid layer; 103. a waterproof layer; 104. an alkali-resistant layer; 105. a corrosion-resistant layer; 106. a thermal insulation layer; 107. a flame retardant layer; 2. a locking assembly; 201. a circular plate body; 202. a circular groove; 203. a first arc-shaped plate body; 204. a threaded rod; 205. a first circular plate body; 206. a threaded through hole; 207. a first through hole; 208. a first groove; 3. a first steel ball; 4. a second groove; 5. a second circular plate body; 6. a rod body; 7. a third circular plate body; 8. a handle; 9. a fixed block; 10. a second through hole; 11. an L-shaped rod body; 12. a second arc-shaped plate body; 13. and the second steel ball.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-6, the present invention provides a technical solution: an alkali-resistant corrosion-resistant insulating sleeve comprises a protective component 1 and a locking component 2, wherein the protective component 1 comprises a sheath layer 101, a metal braid layer 102, a waterproof layer 103, an alkali-resistant layer 104, a corrosion-resistant layer 105, a heat-insulating layer 106 and a flame-retardant layer 107;
the inner side wall of the sheath layer 101 is bonded to the outer side wall of the metal woven layer 102, the inner side wall of the metal woven layer 102 is bonded to the outer side wall of the waterproof layer 103, the inner side wall of the waterproof layer 103 is bonded to the outer side wall of the alkali-resistant layer 104, and the inner side wall of the alkali-resistant layer 104 is bonded to the outer side wall of the corrosion-resistant layer 105;
the locking assembly 2 comprises a ring plate 201, a circular groove 202, a first arc plate 203, a threaded rod 204, a first circular plate 205, a threaded through hole 206, a first through hole 207 and a first groove 208.
In this embodiment, specifically: the number of the ring plate bodies 201 is two, the inner side walls of the two ring plate bodies 201 are symmetrically adhered to the outer side wall of the sheath layer 101, the inner side wall of the ring plate body 201 is provided with a circular groove 202, the outer side wall of the ring plate body 201 is symmetrically provided with two first grooves 208, a threaded through hole 206 is arranged on one side of the first circular plate body 205, the first circular plate body 205 is rotatably connected to the inner side wall of the first groove 208 through a bearing, the outer side wall of the threaded rod 204 is in threaded connection with the inner side wall of the threaded through hole 206, the first through hole 207 is arranged on the inner side wall of the first groove 208, the outer side wall of the threaded rod 204 is slidably connected to the inner side wall of the first through hole 207, one end of the threaded rod 204 is rotatably connected to the first arc plate body 203 through a bearing, the threaded rod 204 is driven to rotate in the threaded through hole 206 by rotating the first circular plate 205, so that the threaded rod 204 pushes the first arc-shaped plate 203 inwards to clamp the cable.
In this embodiment, specifically: the second steel balls 13 are uniformly embedded in the inner side wall of the first groove 208, the outer side wall of each second steel ball 13 is attached to one side of the first circular plate 205, and the second steel balls 13 are arranged to assist in actively rotating the first circular plate 205, so that the friction force between the first circular plate 205 and the first groove 208 is reduced.
In this embodiment, specifically: one side welding of first circular plate body 205 has the fixed block 9, and the lower surface welding of fixed block 9 has the L type body of rod 11, and second recess 4 has evenly been seted up to the inside wall of first recess 208, drives the fixed block 9 through rotating the L type body of rod 11 and rotates to drive first circular plate body 205 and rotate.
In this embodiment, specifically: second through-hole 10 has been seted up to one side of fixed block 9, and the inside wall sliding connection of second through-hole 10 has the body of rod 6, and the lateral wall of the body of rod 6 runs through in one side of first circular plate body 205, through above setting, slides the body of rod 6 in second through-hole 10 and second recess 4, carries out spacing fixedly to first circular plate body 205.
In this embodiment, specifically: the inner side wall of the corrosion-resistant layer 105 is bonded to the outer side wall of the heat-insulating layer 106, the inner side wall of the heat-insulating layer 106 is bonded to the outer side wall of the flame-retardant layer 107, the inner side wall of the flame-retardant layer 107 is embedded with the first steel balls 3, the first steel balls 3 are arranged, so that a cable can be assisted to penetrate into a sleeve, the heat-insulating layer 106 is made of aerogel, the aerogel has the characteristic of low heat conductivity, is not easily influenced by electricity, heat and sound, has the characteristic of strong physical stability, is a good insulator, and has strong impact resistance; the flame-retardant layer 107 is made of a fireproof silica gel sheet, and when heated, the fireproof silica gel sheet decomposes to absorb heat on the surface of a combustible to play a flame-retardant role, and simultaneously releases a large amount of moisture to dilute oxygen on the surface of the combustible, and active oxide generated by decomposition is attached to the surface of the combustible to achieve the flame-retardant purpose.
In this embodiment, specifically: the welding of the one end of the body of rod 6 has the circular plate body of second 5, and the inside wall symmetrical welding of second through-hole 10 has two second arc plate bodies 12, and through setting up second circular plate body 5 and second arc plate body 12, it is convenient spacing to the body of rod 6, prevents that the body of rod 6 from landing in the second through-hole 10.
In this embodiment, specifically: the one end welding that the body of rod 6 kept away from second circular plate body 5 has third circular plate body 7, and the one side welding that the body of rod 6 was kept away from to third circular plate body 7 has handle 8, through setting up third circular plate body 7, prevents that the body of rod 6 from getting into circular plate body 201 in, wherein the setting of handle 8 conveniently extracts the body of rod 6.
In this embodiment: the sheath layer 101 is made of rubber, has high elasticity and is a rubber product difficult to conduct electricity, and has good insulating and shock-absorbing properties; the metal braid 102 is made of a tinned copper wire braid and mainly has the function of ensuring the transmission performance of the wire body in an electromagnetic interference environment; the waterproof layer 103 is made of chlorinated polyethylene resin, is nontoxic and odorless, has excellent weather resistance, chemical resistance and aging resistance, and has the characteristics of good oil resistance, flame retardance, coloring performance, good toughness and strong waterproofness; the alkali-resistant layer 104 is made of polytetrafluoroethylene, has white wax-like, semitransparent, heat-resistant and cold-resistant properties, can be used at-180-260 ℃ for a long time, and has the characteristics of acid and alkali resistance and resistance to various organic solvents; the corrosion-resistant layer 105 is made of a C/C composite material consisting of carbon fibers and resin, and has the characteristics of corrosion resistance, shock absorption and heat insulation.
Working principle or structural principle, when in use, the cable can be effectively protected by arranging the protective component 1, wherein the sheath layer 101 is made of rubber, the rubber product has high elasticity and is difficult to conduct electricity, and the cable has good insulation and shock absorption characteristics, and effectively protects the cable from being damaged, the metal braid layer 102 is made of a tinned copper wire braid layer, and mainly has the advantages of ensuring the transmission performance of the cable body in an electromagnetic interference environment, protecting the cable from being scratched easily, and the waterproof layer 103 is made of chlorinated polyethylene resin, has excellent weather resistance, chemical resistance and aging resistance, has good oil resistance, flame resistance and coloring performance, good toughness and strong waterproof performance, can effectively prevent water from entering the interior of the sleeve, and when in acid rain, the alkali-resistant layer 104 is made of polytetrafluoroethylene, the cable is characterized by being white, waxy, semi-transparent, heat-resistant and cold-resistant, capable of being used at-180-260 ℃ for a long time, resistant to acid, alkali and various organic solvents, corrosion-resistant layer 105 is made of a C/C composite material consisting of carbon fibers and resin, corrosion-resistant, shock-absorbing and heat-insulating, and used for protecting the cable inside the cable from being corroded by acid rain, wherein the heat-insulating layer 106 is made of aerogel which has the characteristic of low heat conductivity, is not easily influenced by electricity, heat and sound, has the characteristic of strong physical stability, is a good insulator, and has strong impact resistance; the flame retardant layer 107 is made of fireproof silica gel sheets to achieve the purpose of flame retardance, when a cable needs to be fixed, the L-shaped rod body 11 is rotated to drive the first circular plate body 205 to rotate, the first circular plate body 205 is rotatably connected to the inner side wall of the first groove 208 in a bearing mode, the outer side wall of the threaded rod 204 is connected to the inner side wall of the threaded through hole 206 in a threaded mode, the first through hole 207 is formed in the inner side wall of the first groove 208, the outer side wall of the threaded rod 204 is slidably connected to the inner side wall of the first through hole 207, one end of the threaded rod 204 is rotatably connected to the first arc-shaped plate body 203 through a bearing mode, the threaded rod 204 is driven to rotate in the threaded through hole 206 by rotating the first circular plate body 205, the threaded rod 204 pushes the first arc-shaped plate body 203 inwards to clamp the cable, when the first circular plate body 205 needs to be limited, the third circular plate body 7 is driven to move inwards by the pushing handle 8, the third circular plate body 7 drives the rod body 6 to move inwards, the rod body 6 slides in the second through hole 10 and the second groove 4 to limit and fix the first circular plate body 205.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides an alkali-resistant corrosion-resistant insulation support, includes protection component (1) and locking Assembly (2), its characterized in that: the protective component (1) comprises a sheath layer (101), a metal woven layer (102), a waterproof layer (103), an alkali-resistant layer (104), an anti-corrosion layer (105), a heat-insulating layer (106) and a flame-retardant layer (107);
the inner side wall of the sheath layer (101) is bonded to the outer side wall of the metal woven layer (102), the inner side wall of the metal woven layer (102) is bonded to the outer side wall of the waterproof layer (103), the inner side wall of the waterproof layer (103) is bonded to the outer side wall of the alkali-resistant layer (104), and the inner side wall of the alkali-resistant layer (104) is bonded to the outer side wall of the corrosion-resistant layer (105);
the locking assembly (2) comprises a circular ring plate body (201), a circular groove (202), a first arc-shaped plate body (203), a threaded rod (204), a first circular plate body (205), a threaded through hole (206), a first through hole (207) and a first groove (208).
2. The alkali-resistant corrosion-resistant insulating sleeve according to claim 1, wherein: the number of the circular ring plate bodies (201) is two, the inner side walls of the two circular ring plate bodies (201) are symmetrically adhered to the outer side wall of the sheath layer (101), a circular groove (202) is arranged on the inner side wall of the circular plate body (201), two first grooves (208) are symmetrically arranged on the outer side wall of the circular plate body (201), the threaded through hole (206) is arranged on one side of the first round plate body (205), the first circular plate body (205) is rotatably connected with the inner side wall of the first groove (208) through a bearing, the outer side wall of the threaded rod (204) is in threaded connection with the inner side wall of the threaded through hole (206), the first through hole (207) is opened on the inner side wall of the first groove (208), the outer side wall of the threaded rod (204) is connected with the inner side wall of the first through hole (207) in a sliding way, one end of the threaded rod (204) is rotatably connected to the first arc-shaped plate body (203) through a bearing.
3. The alkali-resistant corrosion-resistant insulating sleeve according to claim 1, wherein: the inner side wall of the first groove (208) is evenly embedded with second steel balls (13), and the outer side wall of each second steel ball (13) is attached to one side of the corresponding first circular plate body (205).
4. The alkali-resistant corrosion-resistant insulating sleeve according to claim 1, wherein: one side welding of first circular plate body (205) has fixed block (9), the lower surface welding of fixed block (9) has the L type body of rod (11), second recess (4) have evenly been seted up to the inside wall of first recess (208).
5. The alkali-resistant corrosion-resistant insulating sleeve according to claim 4, wherein: second through-hole (10) have been seted up to one side of fixed block (9), the inside wall sliding connection of second through-hole (10) has the body of rod (6), the lateral wall of the body of rod (6) run through in one side of first circular plate body (205).
6. The alkali-resistant corrosion-resistant insulating sleeve according to claim 1, wherein: the inner side wall of the corrosion-resistant layer (105) is bonded to the outer side wall of the heat-insulating layer (106), the inner side wall of the heat-insulating layer (106) is bonded to the outer side wall of the flame-retardant layer (107), and first steel balls (3) are embedded in the inner side wall of the flame-retardant layer (107).
7. The alkali-resistant corrosion-resistant insulating sleeve according to claim 5, wherein: the welding of the one end of the body of rod (6) has the circular plate body of second (5), the inside wall symmetrical welding of second through-hole (10) has two second arc plate bodies (12).
8. The alkali-resistant corrosion-resistant insulating sleeve of claim 7, wherein: the rod body (6) is far away from one end of the second circular plate body (5) is welded with a third circular plate body (7), and the third circular plate body (7) is far away from one side of the rod body (6) is welded with a handle (8).
CN202120770831.2U 2021-04-15 2021-04-15 Alkali-resistant corrosion-resistant insulating sleeve Active CN215220394U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120770831.2U CN215220394U (en) 2021-04-15 2021-04-15 Alkali-resistant corrosion-resistant insulating sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120770831.2U CN215220394U (en) 2021-04-15 2021-04-15 Alkali-resistant corrosion-resistant insulating sleeve

Publications (1)

Publication Number Publication Date
CN215220394U true CN215220394U (en) 2021-12-17

Family

ID=79446996

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120770831.2U Active CN215220394U (en) 2021-04-15 2021-04-15 Alkali-resistant corrosion-resistant insulating sleeve

Country Status (1)

Country Link
CN (1) CN215220394U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115149470A (en) * 2022-06-14 2022-10-04 国网山东省电力公司济宁市任城区供电公司 Cable protection device and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115149470A (en) * 2022-06-14 2022-10-04 国网山东省电力公司济宁市任城区供电公司 Cable protection device and method

Similar Documents

Publication Publication Date Title
CN215220394U (en) Alkali-resistant corrosion-resistant insulating sleeve
CN204315271U (en) A kind of embossing aluminium isolated form inorganic mineral insulation flexible fire-proof cable
CN219874922U (en) CPVC electric power tubular product that insulating effect is good
CN211018118U (en) Composite electric power pipe
CN212990750U (en) Anti-corrosion cable jacket
CN211994529U (en) Anti-electric shock glass fiber sleeve
CN211828205U (en) Tensile anti-breaking water conservancy cable
CN219028740U (en) Cable protection tube with good heat insulation and high temperature resistance effects
CN207489521U (en) A kind of resistance to fire-retardant computer flexible cable of the resistance to tension of mineral insulation
CN216697918U (en) Novel high-temperature-resistant cable
CN215896001U (en) Cable signal protection device
CN110808121A (en) Waterproof cable for variable frequency motor
CN211683833U (en) Heat-insulation silicon-titanium adhesive tape for high-temperature flexible connection
CN216158504U (en) High-temperature-resistant flame-retardant PVC pipe
CN213212998U (en) Anticorrosive CPVC cable protection pipe
CN216647919U (en) Flame-retardant power cable
CN220232764U (en) Anti-cracking low-voltage power cable
CN211348771U (en) Optical cable with good corrosion resistance effect
CN214354568U (en) PVC pipe with good insulation effect
CN212750451U (en) High-temperature-resistant mineral-insulated high-flexibility cable without metal sheath
CN218957444U (en) Silicon rubber insulation fire-resistant power cable
CN220509744U (en) Wire rod with anti-aging function
CN210403303U (en) Fireproof cable with multiple fireproof layers
CN221508516U (en) Tensile cable for wind power generation
CN220439257U (en) Bunched overhead cable

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant