CN109361077B - Human-shaped electric wire clamp, wire mounting and dismounting method thereof and mechanical gripper used for wire mounting and dismounting - Google Patents
Human-shaped electric wire clamp, wire mounting and dismounting method thereof and mechanical gripper used for wire mounting and dismounting Download PDFInfo
- Publication number
- CN109361077B CN109361077B CN201811292009.9A CN201811292009A CN109361077B CN 109361077 B CN109361077 B CN 109361077B CN 201811292009 A CN201811292009 A CN 201811292009A CN 109361077 B CN109361077 B CN 109361077B
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- wire
- wire clamp
- clamp
- mechanical
- mechanical gripper
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
- H01R4/44—Clamping areas on both sides of screw
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
- B25J15/02—Gripping heads and other end effectors servo-actuated
- B25J15/0253—Gripping heads and other end effectors servo-actuated comprising parallel grippers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Programme-controlled manipulators
- B25J9/10—Programme-controlled manipulators characterised by positioning means for manipulator elements
- B25J9/14—Programme-controlled manipulators characterised by positioning means for manipulator elements fluid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/027—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for connecting conductors by clips
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- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manipulator (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention relates to a connection clamping technology between high-voltage power lines, in particular to a human-shaped power line clamp, a line mounting and dismounting method thereof and a mechanical gripper used for mounting and dismounting lines. The man-shaped power wire clamp can be manually operated, and can also be operated by using the mechanical gripper, the arranged limiting plate and the limiting groove can prevent the left and right push rods from rotating in the horizontal direction, the stop block at the lower end of the limiting plate limits the upward pushing height of the left and right push rods, the left and right push rods are prevented from being turned upwards, and the left and right push rods are ensured to be in a normal state to be clamped when the mechanical gripper is used for operation. The mechanical gripper is used for operation, the danger of manual high-altitude operation is avoided, and the working efficiency is greatly improved.
Description
Technical Field
The invention relates to a connection clamping technology between high-voltage power lines, in particular to a human-shaped power line clamp, a line mounting and dismounting method thereof and a mechanical gripper used for mounting and dismounting lines.
Background
It is known that power can only be transmitted from a main high-voltage line to a user via a branch high-voltage line and then via a transformer, and a power line clamp is a connecting piece for connecting the main high-voltage line and the branch high-voltage line. The left push rod and the right push rod of the existing human-shaped electric wire clamp can horizontally rotate and can also turn upwards, in addition, the threads on the pull rod and the nuts lack tension contact, the wire assembling and disassembling operation of the electric wire clamp can only be manually completed by an electric worker standing on a lifting vehicle, the danger of high-altitude operation is avoided, and the working efficiency is low.
Disclosure of Invention
The invention aims to provide a human-shaped electric wire clamp, a wire assembling and disassembling method thereof and a mechanical paw used for assembling and disassembling wires.
The technical scheme of the invention is as follows: a human-shaped electric wire clamp comprises a bottom plate, a pull rod, a left push rod and a right push rod which are hinged on a pin shaft, wherein two limiting grooves are formed in the bottom plate, the direction of one limiting groove is consistent with the advancing and retreating direction of the left push rod, and the direction of the other limiting groove is consistent with the advancing and retreating direction of the right push rod; the left push rod and the right push rod are respectively hinged with a limiting plate, the limiting plates move in a limiting groove of the bottom plate, and the lower ends of the limiting plates are provided with stop blocks; the upper part of the pull rod is of a polished rod structure, the middle part of the pull rod is provided with threads, the lower part of the pull rod is of a polished rod structure, and the polished rod part at the lower part of the pull rod is sleeved with a spring.
And positioning arcs are symmetrically arranged on two side edges of the central line of the bottom plate in the width direction.
A guide sleeve is fixed on the central hole of the bottom plate, and the height of the guide sleeve is 7-16 mm.
The mechanical gripper is matched with a power line clamp to assemble and disassemble a line, and comprises a line clamp mechanical gripper and a line clamping mechanical gripper; the wire clamp mechanical gripper comprises a base arranged on a mechanical arm, wherein one end of the base is transversely provided with a parallel cylinder, and a pair of jaws which are symmetrically arranged is arranged on the parallel cylinder; a pair of polished rods are fixed along the longitudinal direction of the base, pneumatic wrenches moving along the polished rods are arranged on the polished rods, and the longitudinal movement of the pneumatic wrenches is driven by cylinders arranged on the base;
the wire clamping mechanical gripper comprises a connecting plate arranged on the other mechanical arm, a parallel cylinder is arranged on the connecting plate, and a pair of semicircular clamping jaws which are symmetrically arranged is arranged on the parallel cylinder.
The method for assembling and disassembling the power wire clamp comprises a wire assembling method and a wire disassembling method; when the cable is installed, the electric lift truck is driven to a position below the main high-voltage cable, and the lifting platform is lifted; starting a parallel cylinder on a wire clamp mechanical gripper, and clamping a positioning arc on a wire clamp bottom plate by a pair of clamping jaws on the parallel cylinder; simultaneously starting a parallel cylinder on the wire clamping mechanical paw to enable a pair of semicircular claws on the parallel cylinder to clamp the branch high-voltage wire; under the guidance of machine vision, the wire clamp mechanical claw is used for clamping a main wire of a wire clamp on a main high-voltage wire, and the wire clamp mechanical claw is used for placing a branch high-voltage wire into a branch wire clamp of the wire clamp; starting an air cylinder on a wire clamp mechanical paw, driving a pneumatic wrench to advance to approach a nut on a wire clamp in an initial state by the air cylinder, and clockwise rotating a sleeve on the pneumatic wrench after the nut on the wire clamp is sleeved by the sleeve on the pneumatic wrench until a left push rod and a right push rod of the wire clamp are opened to respectively clamp a main high-voltage wire and a branch high-voltage wire in a main wire clamp and a branch wire clamp; the cylinder retreats to return, the wire clamp mechanical gripper and the wire clamping mechanical gripper release the clamping jaws to return, the lifting platform descends to return, and the wire loading work is completed;
when disconnecting, the electric lift truck is driven to a position below a main high-voltage wire connected with a wire clamp, the lifting platform is lifted, under the guidance of machine vision, a pair of clamping jaws on a wire clamp mechanical gripper clamps a positioning arc on a wire clamp bottom plate, and meanwhile, a pair of semicircular clamping jaws on the wire clamp mechanical gripper clamps a branch high-voltage wire; the air cylinder drives the pneumatic wrench to advance to approach a nut on the wire clamp, and a sleeve on the pneumatic wrench rotates anticlockwise after sleeving the nut on the wire clamp until the nut on the wire clamp and the left and right push rods return to the initial state; the cylinder retreats to return, the wire clamp mechanical gripper moves the wire clamp away from the main high-voltage wire, the wire clamp mechanical gripper and the wire clamping mechanical gripper return, the lifting platform descends to return, and the wire clamp mechanical gripper and the wire clamping mechanical gripper release the clamping jaws to finish the wire removing work;
the wire clamp mechanical gripper is arranged on a mechanical arm (industrial mechanical arm Universal robot10), and the mechanical arm is arranged on a lifting platform of the electric lift truck;
the wire clamping mechanical gripper is arranged on another mechanical arm (industrial mechanical arm Universal robot10), and the mechanical arm is also arranged on a lifting platform of the same electric lift truck;
the machine vision (prior art) is mounted on a robotic arm;
the initial state of the wire clamp means that a spring on the pull rod props against the nut, so that the nut is in contact with a first tooth of a thread on the pull rod, and the left push rod and the right push rod are in a loosening state.
The man-shaped power wire clamp can be manually operated, and can also be operated by using the mechanical gripper, the arranged limiting plate and the limiting groove can prevent the left and right push rods from rotating in the horizontal direction, the stop block at the lower end of the limiting plate limits the upward pushing height of the left and right push rods, the left and right push rods are prevented from being turned upwards, and the left and right push rods are ensured to be in a normal state to be clamped when the mechanical gripper is used for operation. The mechanical gripper is used for operation, the danger of manual high-altitude operation is avoided, and the working efficiency is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of a human-shaped power wire clamp of the invention.
Fig. 2 is a top view of the base plate of fig. 1.
Fig. 3 is a schematic structural diagram of the wire clamp mechanical gripper.
In fig. 1 and 2: the novel wire clip comprises a main wire clip, 2 left push rods, 3 limiting plates, 4 pin shafts, 5 right push rods, 6 wire clips, 7 limiting grooves, 8 pull rods, 9 guide sleeves, 10 springs, 11 nuts, 12 positioning arcs and 13 bottom plates.
In fig. 3: 20 cylinders, 21 air wrenches, 22 parallel cylinders, 23 jaws, 24 polished rods and 25 bases.
Detailed Description
As shown in fig. 1 and 2, the human-shaped electric wire clamp is improved on the basis of the existing human-shaped wire clamp. The wire rope pulling device comprises a bottom plate 13, a pull rod 8, a left push rod 2 and a right push rod 5 which are hinged on a pin shaft 4, wherein two limiting grooves 7 are formed in the bottom plate 13, the direction of one limiting groove 7 is consistent with the advancing and retreating direction of the left push rod 2, the direction of the other limiting groove 7 is consistent with the advancing and retreating direction of the right push rod 5, namely the direction of the limiting groove 7 is vertical to the axial lead of a main wire card 1 or a branch wire card 6; a limiting plate 3 is hinged to the left push rod and the right push rod respectively, the limiting plate 3 moves in a limiting groove 7 of the bottom plate 13, and a stop block is arranged at the lower end of the limiting plate 3; the limiting plate 3 and the limiting groove 7 can prevent the left and right push rods from rotating in the horizontal direction, the stop blocks at the lower ends of the limiting plate 3 limit the upward pushing height of the left and right push rods, the left and right push rods are prevented from upwards overturning, and the left and right push rods are in a normal state to be clamped when the mechanical gripper is adopted for operation.
The upper part of the pull rod 8 is of a polished rod structure, the middle part is of a thread, the lower part is of a polished rod structure, and the polished rod part at the lower part is sleeved with a spring 10. Gaskets are arranged at the upper end and the lower end of the spring 10, and the gasket at the lower end is limited at the polished rod part at the lower part of the pull rod 8 through a clamp spring. When the left push rod and the right push rod are in an initial state to be clamped, the spring 10 props against the nut 11, so that the nut 11 is in contact with the head of the thread on the pull rod 8, once the wire clamp needs to be operated by a mechanical paw, the nut 11 can be screwed immediately, and the working efficiency is extremely high. Meanwhile, when the nut 11 is withdrawn to the lower polish rod position at the time of disconnecting, the nut 11 is not withdrawn any more because there is no thread.
And positioning arcs 12 are symmetrically arranged on two side edges of the central line of the bottom plate 13 in the width direction, so that the mechanical gripper can conveniently clamp the workpiece.
A guide sleeve 9 is fixed on a center hole of the bottom plate 13, the guide sleeve 9 can reduce the shaking of the pull rod 8, the height of the guide sleeve 9 is 7-16 mm, and the situation that the left push rod and the right push rod are pulled down due to too high height can be prevented, so that the power line cannot be clamped.
The mechanical paw comprises a wire clamp mechanical paw and a wire clamp mechanical paw; the wire clamp mechanical paw is shown in fig. 3, and comprises a base 25 arranged on a mechanical arm (industrial mechanical arm Universal robot10), wherein one end of the base 25 is transversely provided with a parallel cylinder 22, and a pair of jaws 23 which are symmetrically arranged are arranged on the parallel cylinder 22; a pair of polish rods 24 are fixed along the longitudinal direction of the base 25, and a pneumatic wrench 21 (prior art) moving along the polish rods is disposed on the polish rods 24, and the longitudinal movement of the pneumatic wrench 21 is driven by a cylinder 20 mounted on the base 25. A pair of claws 23 are clamped on the positioning arc 12 of the wire clamp bottom plate 13, so that the wire clamp can be clamped or put down; the sleeve on the pneumatic wrench 21 is sleeved on the wire clamp nut 11, and the nut 11 can be screwed or loosened by rotating the sleeve, so that the left and right push rods of the wire clamp or loosen the power line on the main wire clamp.
The wire clamping mechanical gripper comprises a connecting plate arranged on another mechanical arm (industrial mechanical arm Universal robot10), a parallel cylinder is arranged on the connecting plate, and a pair of symmetrically arranged semicircular clamping jaws is arranged on the parallel cylinder. The closing of a pair of symmetrically arranged semicircular claws can clamp the branch high-voltage line and place the branch high-voltage line into a branch line clamp 6 of the line clamp.
The method for assembling and disassembling the power wire clamp comprises a wire assembling method and a wire disassembling method; when the cable is installed, the electric lift truck is driven to a position below the main high-voltage cable, and the lifting platform is lifted; starting a parallel cylinder 22 on a wire clamp mechanical gripper, and clamping a positioning arc 12 on a wire clamp bottom plate 13 by a pair of clamping jaws 23 on the parallel cylinder; simultaneously starting a parallel cylinder on the wire clamping mechanical paw to enable a pair of semicircular claws on the parallel cylinder to clamp the branch high-voltage wire; under the guidance of machine vision, a main line clamp 1 of the line clamp is hung on a main high-voltage line by a line clamp mechanical claw, and a branch line high-voltage line is placed into a branch line clamp 6 of the line clamp by the line clamp mechanical claw; starting an air cylinder 20 on a wire clamp mechanical paw, driving a pneumatic wrench 21 to advance to be close to a nut 11 on a wire clamp in an initial state by the air cylinder 20, and rotating a sleeve on the pneumatic wrench 21 clockwise after the nut 11 on the wire clamp is sleeved by the sleeve on the pneumatic wrench 21 until a left push rod and a right push rod of the wire clamp are opened to clamp a main high-voltage wire and a branch high-voltage wire in a main wire clamp 1 and a branch wire clamp 6 respectively; the cylinder 20 retreats to return, the wire clamp mechanical gripper and the wire clamping mechanical gripper release the clamping jaws to return, and the lifting platform descends to return to finish wire loading work;
when disconnecting, the electric lift truck is driven to a position below a main high-voltage wire connected with a wire clamp, the lifting platform is lifted, under the guidance of machine vision, a pair of clamping claws 23 on a wire clamp mechanical claw clamps a positioning arc 12 on a wire clamp bottom plate 13, and meanwhile, a pair of semicircular clamping claws on the wire clamp mechanical claw clamps a branch high-voltage wire; the air cylinder 20 drives the pneumatic wrench 21 to advance to approach the nut 11 on the wire clamp, and the sleeve on the pneumatic wrench 21 is sleeved on the nut 11 on the wire clamp and then rotates anticlockwise until the nut 11 on the wire clamp and the left and right push rods return to the initial state; the cylinder 20 retreats to return, the wire clamp mechanical gripper moves the wire clamp away from the main high-voltage wire, the wire clamp mechanical gripper and the wire clamping mechanical gripper return, the lifting platform descends to return, and the wire clamp mechanical gripper and the wire clamping mechanical gripper release clamping jaws to finish the wire removing work;
the wire clamp mechanical gripper is arranged on a mechanical arm (industrial mechanical arm Universal robot10), and the mechanical arm is arranged on a lifting platform of the electric lift truck;
the wire clamping mechanical gripper is arranged on another mechanical arm (industrial mechanical arm Universal robot10), and the mechanical arm is also arranged on a lifting platform of the same electric lift truck;
the machine vision (prior art) is mounted on a robotic arm;
the initial state of the wire clamp means that the spring 10 on the pull rod 8 props against the nut 11, so that the nut 11 is in contact with the first tooth of the thread on the pull rod 8, and the left push rod and the right push rod are in a loosening state.
Claims (2)
1. Mechanical gripper that cooperation power line clamp was installed and is torn open line, characterized by: the mechanical paw comprises a wire clamp mechanical paw and a wire clamp mechanical paw; the wire clamp mechanical gripper comprises a base arranged on a mechanical arm, wherein one end of the base is transversely provided with a parallel cylinder, and a pair of jaws which are symmetrically arranged is arranged on the parallel cylinder; a pair of polished rods are fixed along the longitudinal direction of the base, pneumatic wrenches moving along the polished rods are arranged on the polished rods, and the longitudinal movement of the pneumatic wrenches is driven by cylinders arranged on the base;
the wire clamping mechanical gripper comprises a connecting plate arranged on the other mechanical arm, a parallel cylinder is arranged on the connecting plate, and a pair of semicircular clamping jaws which are symmetrically arranged are arranged on the parallel cylinder;
the power line clamp be people's type power line clamp, include bottom plate, pull rod, articulate in epaxial left push rod of round pin and right push rod, characterized by: the bottom plate is provided with two limiting grooves, the trend of one limiting groove is consistent with the advancing and retreating direction of the left push rod, and the trend of the other limiting groove is consistent with the advancing and retreating direction of the right push rod; the left push rod and the right push rod are respectively hinged with a limiting plate, the limiting plates move in a limiting groove of the bottom plate, and the lower ends of the limiting plates are provided with stop blocks; the upper part of the pull rod is of a polished rod structure, the middle part of the pull rod is provided with threads, the lower part of the pull rod is of a polished rod structure, and the polished rod part at the lower part of the pull rod is sleeved with a spring.
2. The method for assembling and disassembling a wire using the gripper of claim 1, wherein: the method comprises a wire installing method and a wire removing method; when the cable is installed, the electric lift truck is driven to a position below the main high-voltage cable, and the lifting platform is lifted; starting a parallel cylinder on a wire clamp mechanical gripper, and clamping a positioning arc on a wire clamp bottom plate by a pair of clamping jaws on the parallel cylinder; simultaneously starting a parallel cylinder on the wire clamping mechanical paw to enable a pair of semicircular claws on the parallel cylinder to clamp the branch high-voltage wire; under the guidance of machine vision, the wire clamp mechanical claw is used for clamping a main wire of a wire clamp on a main high-voltage wire, and the wire clamp mechanical claw is used for placing a branch high-voltage wire into a branch wire clamp of the wire clamp; starting an air cylinder on a wire clamp mechanical paw, driving a pneumatic wrench to advance to approach a nut on a wire clamp in an initial state by the air cylinder, and clockwise rotating a sleeve on the pneumatic wrench after the nut on the wire clamp is sleeved by the sleeve on the pneumatic wrench until a left push rod and a right push rod of the wire clamp are opened to respectively clamp a main high-voltage wire and a branch high-voltage wire in a main wire clamp and a branch wire clamp; the cylinder retreats to return, the wire clamp mechanical gripper and the wire clamping mechanical gripper release the clamping jaws to return, the lifting platform descends to return, and the wire loading work is completed;
when disconnecting, the electric lift truck is driven to a position below a main high-voltage wire connected with a wire clamp, the lifting platform is lifted, under the guidance of machine vision, a pair of clamping jaws on a wire clamp mechanical gripper clamps a positioning arc on a wire clamp bottom plate, and meanwhile, a pair of semicircular clamping jaws on the wire clamp mechanical gripper clamps a branch high-voltage wire; the air cylinder drives the pneumatic wrench to advance to approach a nut on the wire clamp, and a sleeve on the pneumatic wrench rotates anticlockwise after sleeving the nut on the wire clamp until the nut on the wire clamp and the left and right push rods return to the initial state; the cylinder retreats to return, the wire clamp mechanical gripper moves the wire clamp away from the main high-voltage wire, the wire clamp mechanical gripper and the wire clamping mechanical gripper return, the lifting platform descends to return, and the wire clamp mechanical gripper and the wire clamping mechanical gripper release the clamping jaws to finish the wire removing work;
the wire clamp mechanical gripper is arranged on a mechanical arm, and the mechanical arm is arranged on a lifting platform of the electric lift truck;
the wire clamping mechanical claw is arranged on another mechanical arm, and the mechanical arm is also arranged on a lifting platform of the same electric lift truck;
the machine vision is arranged on the mechanical arm;
the initial state of the wire clamp means that a spring on the pull rod props against the nut, so that the nut is in contact with a first tooth of a thread on the pull rod, and the left push rod and the right push rod are in a loosening state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292009.9A CN109361077B (en) | 2018-11-01 | 2018-11-01 | Human-shaped electric wire clamp, wire mounting and dismounting method thereof and mechanical gripper used for wire mounting and dismounting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292009.9A CN109361077B (en) | 2018-11-01 | 2018-11-01 | Human-shaped electric wire clamp, wire mounting and dismounting method thereof and mechanical gripper used for wire mounting and dismounting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109361077A CN109361077A (en) | 2019-02-19 |
| CN109361077B true CN109361077B (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811292009.9A Expired - Fee Related CN109361077B (en) | 2018-11-01 | 2018-11-01 | Human-shaped electric wire clamp, wire mounting and dismounting method thereof and mechanical gripper used for wire mounting and dismounting |
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| Country | Link |
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| CN (1) | CN109361077B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518494B (en) * | 2019-08-01 | 2020-09-25 | 亿嘉和科技股份有限公司 | Wire clamp lapping tool and wire clamp and operation method thereof |
| CN112332196B (en) * | 2020-10-10 | 2022-03-01 | 中车青岛四方机车车辆股份有限公司 | Pipe clamping device, wiring system and method convenient for wiring of PMA (Poly-maleic anhydride) line pipe |
| CN112260139B (en) * | 2020-10-29 | 2021-11-23 | 大庆油田有限责任公司 | Tool for disassembling wire connector of spanning rod |
| CN114709634B (en) * | 2022-05-09 | 2022-11-04 | 合肥矩特智能装备有限公司 | C-shaped cable clamp mounting tool |
| CN115264137B (en) * | 2022-09-26 | 2022-12-20 | 烟台亮远液压技术有限公司 | Pneumatic power machinery atmospheric pressure adjusting device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529541A (en) * | 2014-09-28 | 2016-04-27 | 天津市亮升线路器材有限公司 | Line clamp used for power lines |
| CN205621870U (en) * | 2016-05-13 | 2016-10-05 | 陈国强 | Electric power fastener |
| CN206135364U (en) * | 2016-10-14 | 2017-04-26 | 吕滨 | Power line clamp |
| CN207283075U (en) * | 2017-08-31 | 2018-04-27 | 广州旺晟电力科技有限公司 | A kind of adjustable power line clamp |
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2018
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| CN109361077A (en) | 2019-02-19 |
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Inventor after: Hu Fahuan Inventor after: Xie Shikun Inventor after: Wang Xinle Inventor before: Hu Fahuan Inventor before: Wang Xinle |
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Granted publication date: 20200630 Termination date: 20211101 |