CN113922313A - High tension transmission line detonating fuse fixing device - Google Patents
High tension transmission line detonating fuse fixing device Download PDFInfo
- Publication number
- CN113922313A CN113922313A CN202111247592.3A CN202111247592A CN113922313A CN 113922313 A CN113922313 A CN 113922313A CN 202111247592 A CN202111247592 A CN 202111247592A CN 113922313 A CN113922313 A CN 113922313A
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- gear
- fixing
- transmission line
- detonating cord
- locking
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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
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
Abstract
The invention relates to a high-voltage transmission line detonating cord fixing device, which comprises a fixing piece, wherein the fixing piece is provided with a space for accommodating a high-voltage transmission line, a first gear and a second gear which can move in opposite directions or away from each other are arranged above the fixing piece, the first gear is elastically connected with a shell through a first frame body, the second gear is elastically connected with the shell through a second frame body, the shell is fixed at the top of the fixing piece, the top of the first frame body is elastically connected with a first locking piece which can be inserted between adjacent gear teeth of the first gear, the top of the second frame body is elastically connected with a second locking piece which can be inserted between adjacent gear teeth of the second gear, and a detonating cord fixing element is arranged at the bottom of the fixing piece.
Description
Technical Field
The invention relates to the technical field of blasting deicing of overhead transmission lines, in particular to a detonating cord fixing device for a high-voltage transmission line.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In some rainy and snowy or humid suburbs, conditions such as rime, rime and ice coating often appear on the distributed power transmission lines, and if the rime, the rime and the ice coating which are solidified on the lines are continuously increased after long-time accumulation, the power transmission lines are excessively stretched, related circuit components are abraded, even the power transmission towers are deformed and unstably collapsed, and adjacent power transmission towers are driven to be continuously damaged, so that serious power grid damage is caused, and great influence is caused on economic development, social operation and normal life of power transmission.
However, such serious power accidents caused by the power transmission line concretions are not inevitable. At present, in order to solve the problems, two modes are generally adopted for deicing, the first mode is that related personnel climb on a power transmission tower to carry out high-altitude operation, and manual deicing is carried out by utilizing a deicing tool and corresponding protective measures, the method is most direct, but in the deicing process, because the power transmission line and the power transmission tower are covered by rain and snow, the reliability of safety equipment in the manual deicing process is easily influenced, a severe test is provided for the life safety guarantee of the personnel who take high-altitude operation, and the labor cost required by the mode is expensive; the second is that facilities for thermal deicing, such as a thermal deicing vehicle, a thermal deicing robot and the like, utilize electric energy to generate heat to melt ice and snow concretions on the power transmission line, so that the problem of circuit icing is well solved, but the method can be influenced by factors such as terrain, icing length and the like, many large-scale thermal deicing facilities cannot be applied specifically because the geographical environments of plateaus, hills or cliffs where overhead power transmission lines are located are severe, and some thermal deicing robots with good performance fail to deice because energy stored in internal batteries are not enough to remove concretions of longer icing lines, so that a large amount of energy is wasted, and the use is not advocated in the large environment with energy shortage at present.
At present, a blasting deicing mode appears, the defects of the two modes are overcome, the detonating cord needs to be fixed by a fixing device below the high-voltage power transmission line, after the ice layer of the high-voltage power transmission line reaches a set thickness, the detonating cord is used for detonating the blasting device, and the ice is removed by vibration.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a low-energy detonating cord fixing device for a high-voltage transmission line, and meets the fixing requirements of high-voltage transmission lines with different diameters and distances between the high-voltage transmission lines and the detonating cords.
In order to achieve the purpose, the invention adopts the following technical scheme
The embodiment of the invention provides a detonating cord fixing device for a high-voltage transmission line, which comprises a fixing piece, wherein the fixing piece is provided with a space for accommodating the high-voltage transmission line, a first gear and a second gear which can move towards or away from each other are arranged above the fixing piece, the first gear is elastically connected with a shell through a first frame body, the second gear is elastically connected with the shell through a second frame body, the shell is fixed at the top of the fixing piece, the top of the first frame body is elastically connected with a first locking piece which can be inserted between adjacent gear teeth of the first gear, the top of the second frame body is elastically connected with a second locking piece which can be inserted between adjacent gear teeth of the second gear, and a detonating cord fixing element is arranged at the bottom of the fixing piece.
Optionally, the mounting adopts the annular casing that the top is equipped with the breach, mounting sliding connection has a plurality of briquettings, the briquetting can the radial motion of mounting, and the outer peripheral face of mounting is provided with the extension spring, and the extension spring both ends are fixed with the mounting, and the briquetting contacts with the extension spring.
Optionally, one end of the pressing block is used for contacting with the high-voltage transmission line, the other end of the pressing block is provided with a limiting groove, and the tension spring is placed in the limiting groove.
Optionally, the detonating cord fixing element comprises a fixing frame made of carbon steel wires, and a fixing frame is arranged at the bottom of the fixing frame and can allow the detonating cord to pass through and support the detonating cord.
Optionally, the carbon steel wire vertically arranged in the fixing frame is provided with a spiral section.
Optionally, the first gear is rotatably connected with one end of the first frame body, the other end of the first frame body is elastically connected with the outer shell through a first elastic assembly,
optionally, the second gear is rotatably connected with one end of the second frame body, and the other end of the second frame body is elastically connected with the outer shell through a second elastic assembly.
Optionally, the end face of the first locking part close to the first gear is an inclined plane with a set acute angle with the axis of the first locking part, and the end face of the second locking part close to the second gear is an inclined plane with a set acute angle with the axis of the second locking part, so that the first gear and the second gear can only rotate in one direction, and the rotation directions of the first gear and the second gear are opposite.
Optionally, the first locking member is provided with at least two, and the second locking member is provided with at least two.
Optionally, the first locking member is a first locking bolt, the first locking bolt penetrates through the first frame body and then can extend into a space between two adjacent gear teeth of the first gear, and a first spring is arranged between the head of the first locking bolt and the first frame body;
furthermore, the second locking part adopts a second locking bolt, the second locking bolt penetrates through the second frame body and then can stretch into the space between two adjacent gear teeth of the second gear, and a second spring is arranged between the head of the second locking bolt and the second frame body.
The invention has the beneficial effects that:
1. according to the fixing device, the first gear is elastically connected with the shell through the first frame body, the second gear is elastically connected with the shell through the second frame body, the high-voltage power transmission line can penetrate through the space between the first gear and the second gear to enter the space of the fixing piece, meanwhile, the first gear and the second gear reset, the fixing device is connected with the high-voltage power transmission line, the detonating cord is fixed at a set distance below the high-voltage power transmission line through the detonating cord fixing element, and the first gear and the second gear can move in the opposite direction or in the far direction and can elastically reset, so that the requirements of the high-voltage power transmission lines with different diameters for entering the space inside the fixing piece are met, and the requirements of the detonating cord fixed below the high-voltage power transmission lines with different diameters are met.
2. According to the fixing device, the fixing piece of the detonating cord fixing element is made of carbon steel, the carbon steel wire can realize better plastic deformation, the adjustment of any distance and any angle from the detonating cord to the power transmission line within a certain range can be realized through the random deformation of the steel wire, the icing thickness and different icing shapes of different power transmission lines can be adapted, the requirement on the diameter of the detonating cord is low, the device is simple and practical, and the application value under complex conditions can be improved.
3. The fixing device is provided with the first locking part and the second locking part, and the end faces of the first locking part and the second locking part are inclined planes, so that the first gear and the second gear can only rotate in a single direction, the locking requirement on the high-voltage transmission line after the first gear and the second gear are reset is further met, and the fixing device has better mechanical reliability.
4. The fixing device provided by the invention is provided with the pressing block and the tension spring, the tension spring can be self-adapted and lock the radial size of the high-voltage transmission line through the pressing block, complex secondary adjustment or adjustment after wiring is not needed to be carried out before wiring, the use is safe and convenient, and the fixing device is very suitable for being used in severe special environments.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
FIG. 2 is a schematic view of the overall structure of embodiment 1 of the present invention with the housing removed;
FIG. 3 is a schematic view of the assembly of a second elastic element and a housing according to embodiment 1 of the present invention;
fig. 4 is a schematic view illustrating an assembly of a first locking bolt, a first frame body and a first gear according to embodiment 1 of the present invention;
FIG. 5 is a schematic view of the assembly of the fixing member and the pressing block according to embodiment 1 of the present invention;
fig. 6 is a schematic structural view of a detonating cord fixing member according to embodiment 1 of the present invention;
FIG. 7 is a schematic view of the use state of embodiment 1 of the present invention;
the high-voltage transmission line comprises a fixing piece 1, a high-voltage transmission line 2, a first gear 3, a second gear 4, a first frame body 5, a second frame body 6, a shell 7, a connecting bolt 8, a third spring 9, a first locking bolt 10, a first spring 11, a second locking bolt 12, a second spring 13, a pressing block 14, a tension spring 15, a detonating cord 16, a fixing frame 17, a fixing frame 18 and a spiral section 19.
Detailed Description
Example 1
The embodiment provides a high tension transmission line detonating fuse fixing device, as shown in fig. 1-6, including a fixing member 1, where the fixing member 1 is used to be locked and fixed with a high tension transmission line 2, in this embodiment, the fixing member 1 adopts a ring-shaped shell structure with a notch at the top, and has a space for accommodating the high tension transmission line 2, the high tension transmission line 2 can enter the inside of the fixing member 1 from the notch at the top of the fixing member 1, and then the fixing member 1 is locked and fixed with the high tension transmission line 2.
A first gear 3 and a second gear 4 which are used in pairs are arranged above the fixing piece 1, the axes of the first gear 3 and the second gear 4 are arranged in parallel with the axis of the fixing piece 1, and the first gear 3 and the second gear 4 can move towards or away from each other.
The shell 7 adopts a sheet metal shell, and the bottom end of the shell 7 is fixed at the top of the fixing part 1.
The structure of first elastic component and second elastic component is the same, explains with first elastic component as an example, first elastic component includes connecting bolt 8, and connecting bolt 8 passes connecting plate and shell 7 back threaded connection coupling nut that 5 tip of first support body set up, connecting bolt 8's head is pressed on the surface of connecting plate, coupling nut presses on the surface of shell 7, and the cover has third spring 9 on connecting bolt 8's the shank of bolt, the one end and the connecting plate of third spring 9 are connected, and the other end is connected with the mounting panel.
In order to ensure the smoothness of the movement of the first gear 3 and the second gear 4, at least two first elastic assemblies and at least two second elastic assemblies are arranged, in this embodiment, two first elastic assemblies are arranged, and two second elastic assemblies are arranged.
In this embodiment, when high tension power line 2 from top to bottom passes through the space between first gear 3 and the second gear 4, can drive first gear 3 and second gear 4 and do the rotation of opposite direction, and simultaneously, first gear 3 and second gear 4 are kept away from the motion, when high tension power line 2 crossed the space of entering mounting 1 behind first gear 3 and the second gear 4, first gear 3 resets under first elastic component's effect, second gear 4 resets under the effect of second elastic component, and then fix whole fixing device on high tension power line 2 with mounting 1 combined action.
Further, in order to lock fixing device on high tension power line 2, guarantee mechanical reliability, the top elastic connection of first support body 5 has first retaining member, first retaining member tip can stretch into the space between the adjacent teeth of a cogwheel of first gear 3, the top elastic connection of second support body 6 has the second retaining member, the second retaining member can stretch into the space between the adjacent teeth of a cogwheel of second gear 4.
First retaining member adopts the first locking bolt 10 of the vertical setting of axis, first locking bolt 10 passes first support body 5 to the nut of screwing, nut and the contact of first support body 5, the space between the adjacent teeth of a cogwheel of first gear 3 can be stretched into to the tip of first locking bolt 10, be provided with first spring 11 between the head of the 5 top surfaces of first support body and first locking bolt 10, second retaining member adopts the second locking bolt 12 of the vertical setting of axis, second locking bolt 12 passes second support body 6 to threaded connection nut, nut and the contact of second support body 6, the space between the adjacent teeth of a cogwheel of second gear 4 can be stretched into to the 12 tip of second locking bolt, be provided with second spring 13 between the head of the 6 top surfaces of second support body and second locking bolt 12.
In order to ensure the locking strength, at least two first locking bolts 10 are provided, and at least two second locking bolts 12 are provided, in this embodiment, two first locking bolts 10 are provided, and two second locking bolts 12 are provided.
Furthermore, in order to facilitate the high voltage transmission line 2 to pass through the space between the first gear 3 and the second gear 4 and then enter the fixing part 1, and ensure the connection reliability of the fixing device and the high voltage transmission line 2, the first locking part allows the first gear 3 to rotate in a single direction, the second locking part allows the second gear 4 to rotate in a single direction, and the directions of the first gear 3 and the second gear 4 allowed to rotate are opposite to each other and are matched with the direction of the relative movement of the high voltage transmission line 2 and the fixing device.
In this embodiment, the end face of the first locking bolt 10 is an inclined plane which forms a set acute angle with the axis thereof, the end face of the second locking bolt 12 is an inclined plane which forms a set acute angle with the axis thereof, and in the inclined planes at the ends of the first locking bolt 10 and the second locking bolt 12, the distance between the ends of the inclined plane far away from the fixing member is greater than the distance between the ends close to the fixing member, so that when the first locking bolt 10 extends between the adjacent teeth of the first gear 3, only the clockwise rotation of the first gear 3 can be allowed, and when the second locking bolt 12 extends between the adjacent teeth of the second gear 4, only the counterclockwise rotation of the second gear 4 can be allowed.
The first spring 11 can ensure that the first locking bolt 10 is always attached to the first gear 3, and the second spring 13 can ensure that the second locking bolt 12 is always attached to the second gear 4.
In order to realize the locking and fixing of the high-voltage transmission line 2 and the fixing member 1, the fixing member 1 is provided with a plurality of pressing blocks 14 along the circumferential direction thereof, and the pressing blocks 14 are slidably connected with the fixing member 1 and can move along the radial direction of the fixing member 1. The pressing block 14 includes a first pressing block portion and a second pressing block portion which are coaxially disposed, a cross-sectional area of the first pressing block portion is smaller than a cross-sectional area of the second pressing block portion, and the first pressing block portion can be in contact with the high-voltage transmission line 2 in the fixing member space.
Correspondingly, the pressing block 14 is arranged in a sliding chute formed in the fixing part 1, and the cross section of the sliding chute is T-shaped and matched with the shape of the pressing block.
In order to achieve a better locking effect on the high voltage transmission line 2, the end face of the first press block part, which is used for contacting the high voltage transmission line 2, is an arc-shaped face.
The cambered surface department of mounting 1 is provided with extension spring 15, and extension spring 15's both ends are fixed with mounting 1, and extension spring 15 contacts with the lateral surface of briquetting 14, can apply along the radial load of mounting 1 to briquetting 14, compresses tightly briquetting 14 on high tension transmission line 2.
Further, in order to prevent the tension spring 15 from being separated from the pressing block 14, a limiting groove is formed in the outer side surface of the second pressing block portion, the tension spring 15 is placed in the limiting groove, and the tension spring 15 is prevented from being separated from the pressing block by the limiting groove.
The periphery of mounting 1 is provided with the safety cover, and safety cover and mounting 1 fixed connection for protect parts such as extension spring 15.
The bottom of the fixing piece 1 is fixed with an explosion wire fixing element, the explosion wire fixing element is used for fixing an explosion wire 16, in the embodiment, the explosion wire fixing element adopts a fixing frame 17, the fixing frame 17 is made of carbon steel wires and has good plasticity, two sections of steel wires of the horizontal part at the bottom of the fixing frame 17 are provided with rectangular fixing frames 18, and the fixing frames 18 are provided with spaces for the explosion wire 16 to pass through and support the explosion wire 16.
In this embodiment, mount 17 includes four vertical steel wires, and the top of two adjacent vertical steel wires is equipped with horizontal steel wire, buckles through 1 panel beating of mounting, the gap of curling is fixed with mounting 1, utilizes the horizontally steel wire to connect between two adjacent steel wire bottoms.
The user can pull the fixing frame 16 and further adjust the distance between the fixing frame 18 and the fixing piece 1, and the fixing frame 16 is made of carbon steel and has good plasticity, so that the shape can be kept well, and the distance between the detonating cord 16 and the high-voltage transmission line 2 can be adjusted by adjusting the distance between the fixing frame 18 and the fixing piece 1.
Further, in order to adjust the distance between the fixing frame 18 and the fixing member 1 in a labor-saving manner, the vertical steel wire of the fixing frame 16 is provided with a spiral section 19, and the spiral section 19 can be stretched up and down freely to adjust the distance from the detonating cord 16 to the high-voltage transmission line 2, so that the influence of blasting on the transmission line is reduced.
As shown in fig. 7, when the fixing device of this embodiment is used, a plurality of fixing devices are installed on a high voltage transmission line 2 in advance, and the specific method is that the fixing device moves from bottom to top, after the high voltage transmission line 2 contacts with a first gear 3 and a second gear 4, the first gear 3 starts to rotate clockwise, the second gear 4 rotates counterclockwise, and simultaneously the first gear 3 and the second gear 4 move away from each other, so that the high voltage transmission line 2 passes through a space between the first gear 3 and the second gear 4 and then enters an inner space of a fixing member 1, and simultaneously the first gear 3 and the second gear 4 reset, under the action of a tension spring 15, a pressing block 14 presses the high voltage transmission line 2, a first locking bolt 10 extends into a space between adjacent gear teeth of the first gear 3, a second locking bolt 12 extends into a space between adjacent gear teeth of the second gear 4, so that the first gear 3 and the second gear 4 cannot rotate in reverse direction, the fixing device is locked and fixed with the high-voltage transmission line 2.
The detonating cord 16 is passed through the fixing frame 18 of the detonating cord fixing member, supported by the fixing frame 18, the fixation of the detonating cord 16 with the fixing device is completed, and the fixing frame 18 is adjusted up and down until the distance between the detonating cord 16 and the high voltage power transmission line 2 reaches a set distance.
When the fixing device mounting position is found to be wrong, the first and second lock bolts 10 and 12 are lifted up, so that the first lock bolt 10 is disengaged from the first gear 3 against the spring force, the second lock bolt 12 is disengaged from the second gear 4 against the spring force, and the whole fixing device is moved downward, and at this time, the high voltage transmission line 2 is disengaged from the fixing device from the gap between the first gear 3 and the second gear 4.
By adopting the fixing device of the embodiment, the first gear 3 and the second gear 4 can move towards or away from each other, and the pressing block 14 can move along the radial direction of the fixing piece, so that the fixing requirements of the high-voltage transmission lines 2 with different diameters are met, and the fixing device is suitable for being used in severe and special complex environments.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. The utility model provides a high tension transmission line detonating fuse fixing device, a serial communication port, including the mounting, the mounting is equipped with the space that is used for holding high tension transmission line, the mounting top is equipped with first gear and the second gear that can do in opposite directions or keep away from the motion, first gear is through first support body and shell elastic connection, the second gear passes through second support body and shell elastic connection, the shell is fixed at the mounting top, first support body top elastic connection has the first retaining member that can insert between the adjacent teeth of a cogwheel of first gear, second support body top elastic connection has the second retaining member that can insert between the adjacent teeth of a cogwheel of second gear, the mounting bottom is equipped with detonating fuse fixed element.
2. The device for fixing the detonating cord of the high-voltage transmission line according to claim 1, wherein the fixing member is an annular shell with a notch at the top, the fixing member is slidably connected with a plurality of pressing blocks, the pressing blocks can move in the radial direction of the fixing member, the outer circumferential surface of the fixing member is provided with a tension spring, two ends of the tension spring are fixed with the fixing member, and the pressing blocks are in contact with the tension spring.
3. The device for fixing the detonating cord of the high-voltage transmission line according to claim 2, wherein one end of the pressing block is used for contacting with the high-voltage transmission line, and the other end of the pressing block is provided with a limiting groove, and the tension spring is placed in the limiting groove.
4. The apparatus of claim 1, wherein the detonating cord fixing member comprises a fixing frame made of carbon steel wire, and a fixing frame is provided at a bottom of the fixing frame, and the fixing frame is capable of allowing the detonating cord to pass through and supporting the detonating cord.
5. The device for fixing the detonating cord of the high-tension transmission line according to claim 4, characterized in that the carbon steel wire vertically arranged in the fixing frame is provided with a spiral section.
6. The device for fixing the detonating cord of the high-voltage transmission line according to claim 1, wherein the first gear is rotatably connected to one end of the first frame body, and the other end of the first frame body is elastically connected to the housing through the first elastic assembly.
7. The device for fixing the detonating cord of the high-voltage transmission line according to claim 1, wherein the second gear is rotatably connected to one end of the second frame body, and the other end of the second frame body is elastically connected to the housing through the second elastic assembly.
8. The device for fixing the detonating cord of the high-voltage transmission line according to claim 1, characterized in that the end surface of the first locking member close to the first gear is an inclined surface with a set acute angle with the axis of the first locking member, and the end surface of the second locking member close to the second gear is an inclined surface with a set acute angle with the axis of the second locking member, so that the first gear and the second gear can only rotate in one direction, and the rotation directions of the first gear and the second gear are opposite.
9. The device for fixing the detonating cord of the high-voltage transmission line according to claim 1, characterized in that at least two first locking members are provided, and at least two second locking members are provided.
10. The device for fixing the detonating cord of the high-voltage transmission line according to claim 1, characterized in that the first locking member is a first locking bolt, the first locking bolt can extend into a space between two adjacent gear teeth of the first gear after penetrating through the first frame body, and a first spring is arranged between the head of the first locking bolt and the first frame body;
furthermore, the second locking part adopts a second locking bolt, the second locking bolt penetrates through the second frame body and then can stretch into the space between two adjacent gear teeth of the second gear, and a second spring is arranged between the head of the second locking bolt and the second frame body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111247592.3A CN113922313B (en) | 2021-10-26 | 2021-10-26 | High tension transmission line detonating fuse fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111247592.3A CN113922313B (en) | 2021-10-26 | 2021-10-26 | High tension transmission line detonating fuse fixing device |
Publications (2)
| Publication Number | Publication Date |
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| CN113922313A true CN113922313A (en) | 2022-01-11 |
| CN113922313B CN113922313B (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111247592.3A Active CN113922313B (en) | 2021-10-26 | 2021-10-26 | High tension transmission line detonating fuse fixing device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5250754A (en) * | 1990-10-18 | 1993-10-05 | Thomas Wolf | Clamping device |
| US20100211006A1 (en) * | 2007-10-22 | 2010-08-19 | Schmidt-Soerensen Esko Jens | Medical guide wire torquing device and method of applying torque using the device |
| CN104975766A (en) * | 2015-06-30 | 2015-10-14 | 潘国良 | Electronic door lock convenient to use |
| CN110729662A (en) * | 2019-09-16 | 2020-01-24 | 国网山西省电力公司经济技术研究院 | Segmented blasting deicing method for overhead transmission line |
| CN111641156A (en) * | 2020-06-03 | 2020-09-08 | 国网山西省电力公司经济技术研究院 | Special clamping hardware fitting for laying detonating cord for overhead line blasting deicing machine |
| CN112563974A (en) * | 2020-11-26 | 2021-03-26 | 陕西时盛科邦建设工程有限公司 | Cable laying and wiring device convenient to lay and remove |
-
2021
- 2021-10-26 CN CN202111247592.3A patent/CN113922313B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5250754A (en) * | 1990-10-18 | 1993-10-05 | Thomas Wolf | Clamping device |
| US20100211006A1 (en) * | 2007-10-22 | 2010-08-19 | Schmidt-Soerensen Esko Jens | Medical guide wire torquing device and method of applying torque using the device |
| CN104975766A (en) * | 2015-06-30 | 2015-10-14 | 潘国良 | Electronic door lock convenient to use |
| CN110729662A (en) * | 2019-09-16 | 2020-01-24 | 国网山西省电力公司经济技术研究院 | Segmented blasting deicing method for overhead transmission line |
| CN111641156A (en) * | 2020-06-03 | 2020-09-08 | 国网山西省电力公司经济技术研究院 | Special clamping hardware fitting for laying detonating cord for overhead line blasting deicing machine |
| CN112563974A (en) * | 2020-11-26 | 2021-03-26 | 陕西时盛科邦建设工程有限公司 | Cable laying and wiring device convenient to lay and remove |
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|---|---|
| CN113922313B (en) | 2022-05-31 |
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