CN113264422A - Telescopic sealing belt device - Google Patents
Telescopic sealing belt device Download PDFInfo
- Publication number
- CN113264422A CN113264422A CN202110594053.0A CN202110594053A CN113264422A CN 113264422 A CN113264422 A CN 113264422A CN 202110594053 A CN202110594053 A CN 202110594053A CN 113264422 A CN113264422 A CN 113264422A
- Authority
- CN
- China
- Prior art keywords
- reel
- sealing strip
- housing
- fixedly connected
- fixing plate
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 93
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 18
- 239000011810 insulating material Substances 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 239000002184 metal Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002390 adhesive tape Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000003954 umbilical cord Anatomy 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/48—Automatic re-storing devices
Abstract
The invention relates to the technical field of relay protection automation, and particularly discloses a telescopic sealing strip device which comprises a shell, a sealing strip, a spring coiling mechanism and a fixing mechanism, wherein the shell is provided with an installation bin; the sealing tape is made of flexible insulating material; the coil spring mechanism comprises a reel and a coil spring, the reel is arranged in the mounting bin and is rotationally connected with the shell, the sealing tape is wound on the reel along the circumferential direction of the reel, one end of the sealing tape is fixedly connected with the reel, the other end of the sealing tape extends out of the opening, and the reel has a first state driven by the sealing tape to rotate in the forward direction and a second state driven by the coil spring to rotate in the reverse direction; the fixing mechanism comprises a first fixing plate and a second fixing plate, the first fixing plate is fixedly connected with the other end of the sealing belt, and the second fixing plate is fixedly connected with the shell. The device solves the problems of large material waste, much occupied time and low working efficiency in the working process.
Description
Technical Field
The invention relates to the technical field of relay protection automation, in particular to a telescopic sealing belt device.
Background
The secondary professional work faces a large number of secondary terminals, other equipment and terminals which run in a work screen are often encountered in actual work, the equipment and terminals with the terminals can be touched carelessly, and serious consequences such as mistaken switch skipping and personal electric shock can be caused when the plot is serious, so that the equipment and the terminals which run need to be sealed according to the current work requirement.
The sealed material articles mainly comprise an insulating adhesive tape, a yellow umbilical cord, red cloth in operation and the like, the adhesive tape and the adhesive tape belong to disposable articles, and can only be discarded after use, so that great waste can be caused in each work, and certain influence is also caused on the environment. Although there is comparatively ripe small-size gasket at present, it is little to the work influence that needs sealed quantity less, if need sealed quantity when more, only sealed work can all occupy more time, influences work efficiency.
Disclosure of Invention
The invention aims to: the utility model provides a telescopic sealing strip device to solve work process material waste among the relevant art big, occupation time is many and work efficiency is low problem.
The invention provides a telescopic sealing strip device, which comprises a shell, a sealing strip, a coil spring mechanism and a fixing mechanism, wherein the shell is provided with an installation bin; the sealing tape is made of flexible insulating material; the coil spring mechanism comprises a reel and a coil spring, the reel is arranged in the mounting bin and is rotationally connected with the shell, the sealing tape is wound on the reel along the circumferential direction of the reel, one end of the sealing tape is fixedly connected with the reel, the other end of the sealing tape extends out of the opening, and the reel has a first state in which the sealing tape is driven to rotate in the forward direction and a second state in which the sealing tape is driven to rotate in the reverse direction by the coil spring; the fixing mechanism comprises a first fixing plate and a second fixing plate, the first fixing plate is fixedly connected with the other end of the sealing strip, and the second fixing plate is fixedly connected with the shell.
As a preferred technical scheme of the telescopic sealing belt device, the reel is provided with a central hole, a fixing column is positioned in the mounting bin and fixedly connected with the shell, and the fixing column penetrates through the central hole.
As a preferable technical scheme of the telescopic sealing belt device, the coil spring is sleeved on the fixed column, the free end of the inner ring of the coil spring is fixedly connected with the fixed column, and the free end of the outer ring of the coil spring is fixedly connected with the reel.
As a preferable aspect of the retractable sealing strip device, the retractable sealing strip device further includes a locking structure having a third state in which the sealing strip is fixed relative to the opening and a fourth state in which the sealing strip is slid relative to the opening.
As a preferable technical scheme of the telescopic sealing belt device, a through groove is arranged along the circumferential direction of the shell; the locking structure comprises a sliding portion and an abutting portion, the sliding portion is in sliding fit with the through groove, the abutting portion is located in the installation bin, the abutting portion extends into the through groove and is fixedly connected with the sliding portion, and the abutting portion selectively abuts or separates the sealing strip and the shell.
As a preferable technical solution of the telescopic sealing belt device, the surface of the sliding part far from the housing is provided with anti-slip threads.
As a preferable technical solution of the telescopic sealing strip device, the first fixing plate and the second fixing plate are both magnetic plates.
As a preferable technical scheme of the telescopic sealing belt device, a connecting ring is arranged on the circumferential direction of the shell, and a hanging and connecting rope is fixedly connected with the connecting ring.
As a preferable technical solution of the telescopic sealing belt device, the housing includes a first housing and a second housing, and the first housing and the second housing enclose the installation bin.
As a preferable embodiment of the telescopic sealing band device, the first housing and the second housing are screwed together by a bolt.
The invention has the beneficial effects that:
the invention provides a telescopic sealing strip device, which comprises a shell, a sealing strip, a coil spring mechanism and a fixing mechanism, wherein the shell is provided with an installation bin; the sealing tape is made of flexible insulating material; the coil spring mechanism comprises a reel and a coil spring, the reel is arranged in the mounting bin and is rotationally connected with the shell, the sealing tape is wound on the reel along the circumferential direction of the reel, one end of the sealing tape is fixedly connected with the reel, the other end of the sealing tape extends out of the opening, and the reel has a first state driven by the sealing tape to rotate in the forward direction and a second state driven by the coil spring to rotate in the reverse direction; the fixing mechanism comprises a first fixing plate and a second fixing plate, the first fixing plate is fixedly connected with the other end of the sealing belt, and the second fixing plate is fixedly connected with the shell. When the secondary professional work is carried out, a large number of terminal strips are faced, other equipment and terminal strips which run in a working screen are often encountered in the actual work, the electrified terminal strips can be touched carelessly slightly, and serious consequences such as mistaken switch skipping, electric shock of a human body and the like can be caused when the plot is serious, so that the equipment and the terminal strips which run need to be sealed according to the current work requirement. The device fixes the first fixing plate on the metal panel at one end of the terminal row, holds the shell and pulls along the length direction of the terminal row, so that the sealing strip completely wraps the terminal row, and finally fixes the second fixing plate fixedly connected with the shell on the metal panel at the other end of the terminal row. Because the sealing strip is made by flexible insulating material, so, the device can realize the sealed of terminal row, and then prevents staff's mistake and touch, after secondary professional work is accomplished, only need all take off first fixed plate and second fixed plate from metal decking, the sealing strip just can be under the effect of coil spring automatic withdrawal to the installation in the storehouse. The device solves the problems of large material waste, much occupied time and low working efficiency in the existing working process, and meets the requirement of secondary professional work of the power system.
Drawings
FIG. 1 is a schematic structural view of a retractable sealing strip device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the construction of a spring coiling mechanism in an embodiment of the invention;
fig. 3 is a top view of a retractable sealing strip device in an embodiment of the invention.
In the figure:
1. a housing; 101. a first housing; 102. a second housing; 103. a locking structure; 104. fixing a column; 105. a first fixing plate; 106. hanging a connecting rope; 2. coiling; 3. sealing tape; 301. a second fixing plate; 4. a coil spring.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1 to 3, the present embodiment provides a telescopic sealing strip device, which includes a housing 1, a sealing strip 3, a coil spring mechanism and a fixing mechanism, wherein the housing 1 is provided with an installation bin, an outer peripheral wall of the housing 1 is provided with an opening, and the opening is communicated with the installation bin; the sealing strip 3 is made of a flexible insulating material; the coil spring mechanism comprises a reel 2 and a coil spring 4, the reel 2 is arranged in the installation bin and is rotationally connected with the shell 1, the sealing tape 3 is wound on the reel 2 along the circumferential direction of the reel 2, one end of the sealing tape 3 is fixedly connected with the reel 2, the other end of the sealing tape 3 extends out of the opening, and the reel 2 has a first state driven by the sealing tape 3 to rotate in the forward direction and a second state driven by the coil spring 4 to rotate in the reverse direction; the fixing mechanism comprises a first fixing plate 105 and a second fixing plate 301, the first fixing plate 105 is fixedly connected with the other end of the sealing belt 3, and the second fixing plate 301 is fixedly connected with the shell 1. When the secondary professional work is carried out, a large number of terminal strips are faced, other equipment and terminal strips which run in a working screen are often encountered in the actual work, the electrified terminal strips can be touched carelessly slightly, and serious consequences such as mistaken switch skipping, electric shock of a human body and the like can be caused when the plot is serious, so that the equipment and the terminal strips which run need to be sealed according to the current work requirement. The device fixes the first fixing plate 105 on the metal panel at one end of the terminal row, holds the shell 1 and pulls along the length direction of the terminal row, so that the sealing tape 3 completely wraps the terminal row, and finally fixes the second fixing plate 301 fixedly connected with the shell 1 on the metal panel at the other end of the terminal row. Because the sealing strip 3 is made of flexible insulating material, the device can realize the sealing of the terminal strip, and further prevent the error touch of workers, after the completion of the secondary professional work, the sealing strip 3 can be automatically retracted into the installation bin under the action of the coil spring 4 only by taking the first fixing plate 105 and the second fixing plate 301 off the metal panel. The device solves the problems of large material waste, much occupied time and low working efficiency in the existing working process, and meets the requirement of secondary professional work of the power system.
Optionally, the reel 2 is provided with a central hole, the fixing column 104 is located in the installation bin and is fixedly connected with the housing 1, and the fixing column 104 penetrates through the central hole. In this embodiment, the fixing post 104 is inserted into the central hole of the reel 2, so that the reel 2 and the housing 1 can rotate relatively.
Optionally, the coil spring 4 is sleeved on the fixed column 104, a free end of an inner ring of the coil spring 4 is fixedly connected with the fixed column 104, and a free end of an outer ring of the coil spring 4 is fixedly connected with the reel 2. In this embodiment, when the reel 2 rotates in the forward direction, the coil spring 4 is in a state of tightening and storing energy, and when the external force for rotating the reel 2 in the forward direction is removed, the coil spring 4 gradually loosens and releases the stored energy to rotate the reel 2 in the reverse direction, so that the sealing tape 3 is rewound on the reel 2.
Optionally, the retractable sealing strip device further comprises a locking structure 103, wherein the locking structure 103 has a third state in which the sealing strip 3 is fixed relative to the opening and a fourth state in which the sealing strip 3 is slid relative to the opening. In this embodiment, when the sealing tape 3 is pulled out by a length enough to wrap the terminal block, the locking structure 103 puts the sealing tape 3 and the opening in the third state, which prevents the sealing tape 3 wrapping the terminal block due to the coil spring 4 from being retracted into the housing 1 without the worker completing the work.
Optionally, a through groove is arranged along the circumferential direction of the shell 1; locking structure 103 includes sliding part and butt portion, sliding part and logical groove sliding fit, and butt portion is located the installation storehouse, and butt portion stretches into logical groove and with the sliding part rigid coupling, butt portion selectivity with sealing band 3 and casing 1 support tightly or separate. In this embodiment, when the abutting portion abuts against the sealing tape 3 and the housing 1, the sealing tape 3 and the opening are in the third state, and when the abutting portion does not abut against the sealing tape 3 and the housing 1 and is in the separated state, the sealing tape 3 and the opening are in the fourth state.
Optionally, the surface of the sliding part remote from the housing 1 is provided with anti-slip threads. In this embodiment, the anti-slip threads are provided to prevent the sliding parts from sliding when the worker pushes the sliding parts with hands.
Optionally, the first fixing plate 105 and the second fixing plate 301 are both magnetic plates. In this embodiment, since the metal panel is made of an iron plate, the first fixing plate 105 and the second fixing plate 301 can be conveniently fixed to the metal panel by using a magnetic plate, and in other embodiments, the first fixing plate 105 and the second fixing plate 301 may be provided with a clamping portion, and the first fixing plate 105 and the second fixing plate 301 may be clamped to the metal panel.
Optionally, a connecting ring is disposed on the circumference of the housing 1, and the hanging rope 106 is fixedly connected to the connecting ring. In this embodiment, the hanging rope 106 is provided to facilitate carrying by a worker.
Optionally, the housing 1 comprises a first housing 101 and a second housing 102, and the first housing 101 and the second housing 102 enclose a mounting bin. In the present embodiment, the purpose of providing the first housing 101 and the second housing 102 is to facilitate the mounting of the sealing tape 3, the coil spring mechanism, and the locking structure 103. Preferably, the first and second housings 101 and 102 are screwed by bolts. In other embodiments, the first housing 101 and the second housing 102 may be clamped to be fixed.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A telescopic sealing strip device, comprising:
the device comprises a shell (1), wherein the shell (1) is provided with an installation bin, the peripheral wall of the shell (1) is provided with an opening, and the opening is communicated with the installation bin;
a sealing strip (3), said sealing strip (3) being made of a flexible insulating material;
the coil spring mechanism comprises a reel (2) and a coil spring (4), the reel (2) is arranged in the installation bin and is rotatably connected with the shell (1), the sealing tape (3) is wound on the reel (2) along the circumferential direction of the reel (2), one end of the sealing tape (3) is fixedly connected with the reel (2), the other end of the sealing tape (3) extends out of the opening, and the reel (2) has a first state that the sealing tape (3) is driven to rotate in a forward direction and a second state that the coil spring (4) is driven to rotate in a reverse direction;
the fixing mechanism comprises a first fixing plate (105) and a second fixing plate (301), the first fixing plate (105) is fixedly connected with the other end of the sealing belt (3), and the second fixing plate (301) is fixedly connected with the shell (1).
2. The telescopic sealing strip device according to claim 1, characterized in that the reel (2) is provided with a central hole, and a fixing column (104) is located in the installation bin and fixedly connected with the housing (1), wherein the fixing column (104) is arranged in the central hole in a penetrating manner.
3. The telescopic sealing belt device according to claim 2, characterized in that the coil spring (4) is sleeved on the fixed column (104), the free end of the inner ring of the coil spring (4) is fixedly connected with the fixed column (104), and the free end of the outer ring of the coil spring (4) is fixedly connected with the reel (2).
4. Telescopic sealing strip device according to claim 1, further comprising a locking structure (103), said locking structure (103) having a third state wherein said sealing strip (3) is fixed relative to said opening and a fourth state wherein said sealing strip (3) is slidable relative to said opening.
5. The telescopic sealing strip device according to claim 4, characterized in that a through groove is provided along the circumference of the housing (1); the locking structure (103) comprises a sliding portion and an abutting portion, the sliding portion is in sliding fit with the through groove, the abutting portion is located in the installation bin, the abutting portion extends into the through groove and is fixedly connected with the sliding portion, and the abutting portion selectively abuts or separates the sealing strip (3) and the shell (1).
6. The telescopic sealing strip device according to claim 5, characterised in that the surface of the sliding part remote from the housing (1) is provided with anti-slip threads.
7. The telescopic sealing strip device according to any one of claims 1 to 5, characterised in that the first fixing plate (105) and the second fixing plate (301) are both magnetic plates.
8. The telescopic sealing strip device according to any one of claims 1 to 5, characterised in that a connecting ring is arranged on the circumference of the housing (1), and a hanging rope (106) is fixedly connected with the connecting ring.
9. The telescopic sealing band device according to any one of claims 1 to 5, characterised in that the housing (1) comprises a first housing (101) and a second housing (102), the first housing (101) and the second housing (102) enclosing the installation compartment.
10. The telescopic sealing strip device according to claim 9, characterised in that the first housing (101) and the second housing (102) are screwed by means of bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110594053.0A CN113264422A (en) | 2021-05-28 | 2021-05-28 | Telescopic sealing belt device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110594053.0A CN113264422A (en) | 2021-05-28 | 2021-05-28 | Telescopic sealing belt device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113264422A true CN113264422A (en) | 2021-08-17 |
Family
ID=77233444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110594053.0A Pending CN113264422A (en) | 2021-05-28 | 2021-05-28 | Telescopic sealing belt device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113264422A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951498A (en) * | 2011-08-18 | 2013-03-06 | 日立化成工业株式会社 | Adhesive material reel |
| CN210029621U (en) * | 2019-06-18 | 2020-02-07 | 河南中能建设工程有限公司 | High-voltage grounding wire winding and unwinding device |
| CN210884735U (en) * | 2019-08-28 | 2020-06-30 | 广东电网有限责任公司 | Insulating tool for sealing terminal |
| JP2020112275A (en) * | 2019-01-08 | 2020-07-27 | ホシザキ株式会社 | Cooling storehouse |
| CN211594640U (en) * | 2019-11-29 | 2020-09-29 | 中国南方电网有限责任公司超高压输电公司百色局 | But reuse's insulating sealing device |
-
2021
- 2021-05-28 CN CN202110594053.0A patent/CN113264422A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951498A (en) * | 2011-08-18 | 2013-03-06 | 日立化成工业株式会社 | Adhesive material reel |
| JP2020112275A (en) * | 2019-01-08 | 2020-07-27 | ホシザキ株式会社 | Cooling storehouse |
| CN210029621U (en) * | 2019-06-18 | 2020-02-07 | 河南中能建设工程有限公司 | High-voltage grounding wire winding and unwinding device |
| CN210884735U (en) * | 2019-08-28 | 2020-06-30 | 广东电网有限责任公司 | Insulating tool for sealing terminal |
| CN211594640U (en) * | 2019-11-29 | 2020-09-29 | 中国南方电网有限责任公司超高压输电公司百色局 | But reuse's insulating sealing device |
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| PB01 | Publication | ||
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Application publication date: 20210817 |