CN112003109B - Hydraulic clamp for electric power overhaul - Google Patents
Hydraulic clamp for electric power overhaul Download PDFInfo
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- CN112003109B CN112003109B CN202010854026.8A CN202010854026A CN112003109B CN 112003109 B CN112003109 B CN 112003109B CN 202010854026 A CN202010854026 A CN 202010854026A CN 112003109 B CN112003109 B CN 112003109B
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/048—Crimping apparatus or processes
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Abstract
The invention relates to the technical field of electric power overhaul, and discloses a hydraulic clamp for electric power overhaul, which comprises a hydraulic driving cylinder and a matching frame, wherein one end of the hydraulic driving cylinder is fixedly connected with an installation frame body, one end of the inner side of the installation frame body is fixedly connected with a positioning cutting knife, the middle part of the other end of the inner side of the installation frame body is slidably connected with a sliding column, one end of the sliding column is fixedly connected with a movable cutting knife, the bottom end of the installation frame body is provided with a placing groove, one end of the hydraulic driving cylinder is fixedly connected with a holding column, the middle part of the holding column is provided with a hydraulic oil tank, the side wall of the hydraulic driving cylinder is fixedly connected with a connecting piece, and a pressing handle is rotatably connected in the connecting piece. This electric power overhauls uses hydraulic tong has simplified the volume of traditional hydraulic tong for hydraulic tong conveniently uses in high altitude circuit overhauls the operation, has changed the traditional operation of placing hydraulic tong in the instrument bag, makes to become very convenient taking of hydraulic tong, has improved the efficiency overhauld high altitude electric power.
Description
Technical Field
The invention relates to the technical field of electric power overhaul, in particular to a hydraulic clamp for electric power overhaul.
Background
The electric power overhaul is mainly divided into the following overhaul parts: the power generation system comprises a power generation part, a power supply part, a power transformation part and a power distribution part, wherein each part is responsible for special personnel. The system is mainly responsible for installation and maintenance of daily equipment, troubleshooting, line patrol and the like, is an occupation for maintenance of a power grid and accessory equipment thereof, has high professional requirements and has certain dangers.
The hydraulic pliers refer to a special hydraulic tool which is specially used for crimping cables and wiring terminals in electric power engineering. Including integrated, split, motorized, manual, etc.
The hydraulic pliers consists of oil tank, power mechanism, reversing valve, pressure relief valve and oil pumping mechanism, and the oil pumping mechanism consists of oil pump body, high and low pressure oil outlet holes, eccentric shaft, eccentric bearing, driven gear, one pair of high pressure oil pumps and one low pressure oil pump.
At present, the traditional hydraulic tong that uses is overhauld at high altitude electric power is bulky, the operation action range is great, not only make the operation very inconvenient, also can cause certain influence to staff's safety, hydraulic tong that is essential in the high altitude construction in-process generally places in the instrument bag, there is a great deal of inconvenience to taking out and receiving of hydraulic tong, and hydraulic tong places and can influence taking to other instruments in the instrument bag, the efficiency of overhauing high altitude electric power has been reduced, we propose for this electric power overhauls and use hydraulic tong.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the hydraulic clamp for electric power overhaul, which simplifies the volume of the traditional hydraulic clamp, ensures that the hydraulic clamp is convenient to use in the high-altitude circuit overhaul operation, can ensure that the operation action amplitude is reduced, ensures that the operation is more convenient and quicker, also provides safety guarantee for workers, changes the traditional operation of placing the hydraulic clamp in a tool bag, ensures that the hydraulic clamp is very convenient to take, does not influence the taking of other tools when placed in the tool bag, improves the efficiency of high-altitude electric power overhaul and the like, solves the problems that the traditional hydraulic clamp used in the high-altitude electric power overhaul at present is overlarge in volume, has larger operation action amplitude, not only is very inconvenient to operate, but also can cause certain influence on the safety of the workers, and the essential hydraulic clamp is generally placed in the tool bag in the high-altitude operation process, there is a lot of inconvenience to taking out and receiving of hydraulic tong, and hydraulic tong places and can influence taking to other instruments in the instrument bag, has reduced the problem to the efficiency of high altitude electric power maintenance.
In order to simplify the volume of the traditional hydraulic clamp, the hydraulic clamp is convenient to use in high-altitude circuit maintenance operation, the operation action amplitude can be ensured to be reduced, the operation is more convenient and quicker, safety guarantee is provided for workers, the traditional operation of placing the hydraulic clamp in a tool bag is changed, the hydraulic clamp is very convenient to take, the hydraulic clamp is placed in the tool bag and cannot influence the taking of other tools, and the aim of improving the high-altitude electric power maintenance efficiency is fulfilled, the invention provides the following technical scheme: hydraulic tong is used in electric power overhaul, including hydraulic drive section of thick bamboo and matching frame, the one end fixedly connected with installation support body of hydraulic drive section of thick bamboo, the inboard one end fixedly connected with location cutting knife of installation support body, the inboard other end middle part sliding connection of installation support body has the slip post, the one end fixedly connected with of slip post removes the cutting knife, just it is corresponding with the location cutting knife to remove the cutting knife, the standing groove has been seted up to the bottom of installation support body, the one end fixedly connected with of hydraulic drive section of thick bamboo grips the post, grip the middle part of post and seted up hydraulic oil tank, just hydraulic oil tank is linked together with hydraulic drive section of thick bamboo's inside, the lateral wall fixedly connected with connecting piece of hydraulic drive section of thick bamboo, it has the pressure handle to rotate in the connecting piece to be connected with.
Preferably, a first supporting spring is fixedly installed between one end of the movable cutting knife and one end of the inner side of the installation frame body, and the first supporting spring is located on the side wall of the sliding column.
Preferably, a first sliding circular groove is transversely formed in one end of the inner side of the hydraulic driving cylinder, a first piston is slidably connected into the first sliding circular groove, a second sliding circular groove is longitudinally formed in the side wall of the hydraulic driving cylinder, and a second piston is slidably connected into the second sliding circular groove.
Preferably, an oil groove is formed in the middle of the hydraulic driving cylinder, a discharge valve is fixedly mounted on one side of the oil groove, a suction valve is fixedly mounted on the other side of the oil groove, and the oil groove is communicated with the first sliding circular groove and the second sliding circular groove respectively.
Preferably, the middle part of the top end of the second piston is fixedly connected with a connecting column, the top end of the connecting column is rotatably connected to the side wall of the pressing handle, and the side wall of the pressing handle is sleeved with a protective sleeve.
Preferably, the fixed ring of lateral wall fixedly connected with of a hydraulic drive section of thick bamboo, the fixed fixedly connected with mounting panel of solid fixed ring, just the inside fixed mounting of mounting panel has the magnet piece.
Preferably, the middle part of the matching frame is provided with a through mounting groove, the middle part of one end of the mounting groove is provided with a matching groove, the mounting plate is connected in the mounting groove in a matching and sliding manner, the inner wall of the matching frame is fixedly provided with a supporting mechanism, and one end of the matching frame is fixedly connected with a waistband mounting piece.
Preferably, the matching frame is made of metal aluminum, and the supporting mechanism is made of metal iron.
Preferably, the supporting mechanism is including fixed frame, sliding connection has the sliding block in the fixed frame, the middle part of sliding block rotates and is connected with the supporting wheel, the one end fixed mounting of sliding block has the second supporting spring.
Compared with the prior art, the invention provides a hydraulic clamp for electric power overhaul, which has the following beneficial effects:
1. the hydraulic clamp for electric power overhaul is characterized in that a column is held by a hand, a pressing handle is pressed up and down, the pressing handle rotates through a connecting piece to drive a connecting column to move, a second piston is driven to move in the moving process of the connecting column, then the second piston can convey hydraulic oil in a hydraulic oil tank to a first sliding circular groove through an oil groove, a discharge valve and a suction valve, so that the first piston is supported, then a movable cutting knife is driven by the first piston through the sliding column to move, so that the movable cutting knife assists in positioning the cutting knife to complete the cutting operation of the hydraulic clamp, in the process of using the hydraulic clamp in high altitude, when the hydraulic clamp is not used for a short time, the hydraulic clamp can be adsorbed on an iron metal structure through a magnet sheet in an installing plate, the hydraulic clamp is convenient to place for a short time and is also convenient to take the hydraulic clamp up, the hydraulic clamp is convenient to use, the volume of the traditional hydraulic clamp is simplified, the hydraulic clamp is convenient to use in high-altitude circuit maintenance operation, the operation action amplitude can be guaranteed to be reduced to some extent, the operation is more convenient and fast, and safety guarantee is provided for workers.
2. This electric power overhauls uses hydraulic tong, through in the high altitude effect, carry out the joint with the matching frame through the waistband installed part earlier and fix on the waistband, then pass through mounting panel slip joint with this hydraulic tong in the mounting groove, thereby can accomplish place this hydraulic tong and climb on the matching frame and overhaul the processing to electric power, the traditional operation of placing hydraulic tong in the instrument bag has been changed, make the taking to hydraulic tong become very convenient, and hydraulic tong places and can not lead to the fact the influence to taking of other instruments in the instrument bag, the efficiency of overhauing high altitude electric power has been improved.
3. This hydraulic tong for electric power overhaul slides when the mounting groove in-process through the mounting panel, and second supporting spring drives the sliding block and removes, drives the supporting wheel through the sliding block and rotates under to the mounting panel supported state, is convenient for carry the mounting panel and make the mounting panel can not produce simultaneously and rock.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the hydraulic drive cartridge of the present invention;
FIG. 3 is a schematic view of the mounting of the matching rack and the mounting plate of the present invention;
FIG. 4 is a cross-sectional view of a mating rack of the present invention;
fig. 5 is a schematic structural diagram of the supporting mechanism of the present invention.
In the figure: 1. a hydraulic drive cylinder; 2. installing a frame body; 3. positioning a cutting knife; 4. a sliding post; 5. moving the cutting knife; 6. a first support spring; 7. a placement groove; 8. a first sliding circular groove; 9. a first piston; 10. a second sliding circular groove; 11. a second piston; 12. connecting columns; 13. an oil sump; 14. a discharge valve; 15. a suction valve; 16. a holding post; 17. a hydraulic oil tank; 18. a connecting member; 19. pressing the handle; 20. a protective sleeve; 21. a fixing ring; 22. mounting a plate; 23. a matching rack; 24. mounting grooves; 25. a fitting groove; 26. a support mechanism; 261. a fixing frame; 262. a slider; 263. a support wheel; 264. a second support spring; 27. a belt mount.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Please refer to fig. 1-5, the hydraulic pliers for electric power overhaul comprises a hydraulic driving cylinder 1 and a matching frame 23, one end of the hydraulic driving cylinder 1 is fixedly connected with an installation frame body 2, one end of the inner side of the installation frame body 2 is fixedly connected with a positioning cutting knife 3, the middle part of the other end of the inner side of the installation frame body 2 is slidably connected with a sliding column 4, one end of the sliding column 4 is fixedly connected with a movable cutting knife 5, the movable cutting knife 5 corresponds to the positioning cutting knife 3, a placement groove 7 is formed in the bottom end of the installation frame body 2, one end of the hydraulic driving cylinder 1 is fixedly connected with a holding column 16, a hydraulic oil tank 17 is formed in the middle part of the holding column 16, the hydraulic oil tank 17 is communicated with the inside of the hydraulic driving cylinder 1, a connecting piece 18 is fixedly connected with the side wall of the hydraulic driving cylinder 1, and a movable handle 19 is rotatably connected in the connecting piece 18.
This electric power overhauls uses hydraulic tong, the volume of traditional hydraulic tong has been simplified, make hydraulic tong conveniently use in high altitude circuit overhauls the operation, can guarantee that the operation action range descends to some extent, make the operation more convenient quick, also for the staff provides the safety guarantee, the traditional operation of placing hydraulic tong in the instrument bag has been changed, make taking to hydraulic tong become very convenient, and hydraulic tong places and can not cause the influence to taking of other instruments in the instrument bag, the efficiency of overhauing high altitude electric power has been improved.
A first supporting spring 6 is fixedly arranged between one end of the movable cutting knife 5 and one end of the inner side of the mounting frame body 2, and the first supporting spring 6 is positioned on the side wall of the sliding column 4; a first sliding circular groove 8 is transversely formed in one end of the inner side of the hydraulic driving cylinder 1, a first piston 9 is connected in the first sliding circular groove 8 in a sliding mode, a second sliding circular groove 10 is longitudinally formed in the side wall of the hydraulic driving cylinder 1, and a second piston 11 is connected in the second sliding circular groove 10 in a sliding mode; an oil groove 13 is formed in the middle of the hydraulic driving cylinder 1, a discharge valve 14 is fixedly mounted on one side of the oil groove 13, a suction valve 15 is fixedly mounted on the other side of the oil groove 13, and the oil groove 13 is respectively communicated with the first sliding circular groove 8 and the second sliding circular groove 10; the middle part of the top end of the second piston 11 is fixedly connected with a connecting column 12, the top end of the connecting column 12 is rotatably connected to the side wall of the pressing handle 19, and the side wall of the pressing handle 19 is sleeved with a protective sleeve 20; the side wall of the hydraulic driving cylinder 1 is fixedly connected with a fixed ring 21, the fixed ring 21 is fixedly connected with an installation plate 22, and a magnet sheet is fixedly installed inside the installation plate 22; a through mounting groove 24 is formed in the middle of the matching frame 23, a matching groove 25 is formed in the middle of one end of the mounting groove 24, the mounting plate 22 is connected in the mounting groove 24 in a sliding and matching manner, a supporting mechanism 26 is fixedly mounted on the inner wall of the matching frame 23, and a waistband mounting piece 27 is fixedly connected to one end of the matching frame 23; the matching rack 23 is made of metal aluminum, and the support mechanism 26 is made of metal iron; the supporting mechanism 26 comprises a fixed frame 261, a sliding block 262 is slidably connected in the fixed frame 261, a supporting wheel 263 is rotatably connected in the middle of the sliding block 262, and a second supporting spring 264 is fixedly installed at one end of the sliding block 262.
When the hydraulic clamp is in operation, the matching frame 23 is clamped and fixed on a waistband through the waistband mounting piece 27, the hydraulic clamp is connected in the mounting groove 24 in a sliding and clamping mode through the mounting plate 22, so that the hydraulic clamp can be placed on the matching frame 23 to climb to overhaul electric power, the column holding column 16 is held through a hand, the pressing handle 19 is pressed up and down, the pressing handle 19 rotates through the connecting piece 18 to drive the connecting column 12 to move, the second piston 11 is driven to move in the moving process of the connecting column 12, the second piston 11 can convey hydraulic oil in the hydraulic oil tank 17 to the first sliding circular groove 8 through the oil tank 13, the discharge valve 14 and the suction valve 15, so that the supporting effect on the first piston 9 is achieved, then the first piston 9 drives the movable cutting knife 5 to move through the sliding column 4, so that the movable cutting knife 5 assists in positioning the cutting operation of the hydraulic clamp, utilize the hydraulic tong in the high altitude in the in-process that uses, when the short time does not use the hydraulic tong, can pass through the magnet piece absorption in the mounting panel 22 with this hydraulic tong on the iron metal structure, be convenient for with the convenient short time placing of hydraulic tong, also be convenient for take up the hydraulic tong, be convenient for use the hydraulic tong.
In conclusion, the first supporting spring 6 is fixedly arranged between one end of the movable cutting knife 5 and one end of the inner side of the mounting frame body 2, and the movable cutting knife 5 can be supported by the first supporting spring 6 in the moving process, so that the phenomenon of blocking and stopping of the movable cutting knife 5 in the moving process is avoided; a first piston 9 is connected in the first sliding circular groove 8 in a sliding manner, so that the first piston 9 can conveniently slide in the first sliding circular groove 8, and a second piston 11 is connected in the second sliding circular groove 10 in a sliding manner, so that the second piston 11 can conveniently slide in the second sliding circular groove 10; a discharge valve 14 is fixedly arranged on one side of the oil tank 13, a suction valve 15 is fixedly arranged on the other side of the oil tank 13, and the discharge valve 14 and the suction valve 15 can be used for controlling hydraulic oil in the oil tank 13; the top end of the connecting column 12 is rotatably connected to the side wall of the pressing handle 19; the connecting column 12 can be driven to move by pressing the handle 19, so that the second piston 11 can be driven to move by the connecting column 12, the protecting sleeve 20 is sleeved on the side wall of the pressing handle 19, and the protecting sleeve 20 is used for preventing sliding; the magnet piece is fixedly arranged in the mounting plate 22, so that the hydraulic clamp can be temporarily adsorbed and fixed through the magnet piece in a gap without using the hydraulic clamp; carry out the joint through will match frame 23 and fix on the waistband through waistband installed part 27, then pass through mounting panel 22 slip joint in mounting groove 24 with this hydraulic tong, thereby can accomplish to place this hydraulic tong and carry out climbing on matching frame 23 and overhaul the processing to electric power, slide at mounting groove 24 in-process through mounting panel 22, second supporting spring 264 drives sliding block 262 and removes, drive supporting wheel 263 through sliding block 262 and rotate under the supporting state to mounting panel 22, be convenient for carry mounting panel 22 and make mounting panel 22 can not produce simultaneously and rock.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. Electric power overhauls uses hydraulic tong, including hydraulic drive section of thick bamboo (1) and matching frame (23), its characterized in that: one end of the hydraulic driving cylinder (1) is fixedly connected with an installation frame body (2), one end of the inner side of the installation frame body (2) is fixedly connected with a positioning cutting knife (3), the middle part of the other end of the inner side of the mounting frame body (2) is connected with a sliding column (4) in a sliding way, one end of the sliding column (4) is fixedly connected with a movable cutting knife (5), the movable cutting knife (5) corresponds to the positioning cutting knife (3), the bottom end of the mounting frame body (2) is provided with a placing groove (7), one end of the hydraulic driving cylinder (1) is fixedly connected with a holding column (16), the middle part of the holding column (16) is provided with a hydraulic oil tank (17), and the hydraulic oil tank (17) is communicated with the interior of the hydraulic driving cylinder (1), the side wall of the hydraulic driving cylinder (1) is fixedly connected with a connecting piece (18), and a pressing handle (19) is rotatably connected in the connecting piece (18);
the side wall of the hydraulic driving cylinder (1) is fixedly connected with a fixing ring (21), the fixing ring (21) is fixedly connected with an installation plate (22), and a magnet sheet is fixedly installed inside the installation plate (22);
a through mounting groove (24) is formed in the middle of the matching frame (23), a matching groove (25) is formed in the middle of one end of the mounting groove (24), the mounting plate (22) is connected in the mounting groove (24) in a sliding and matching mode, a supporting mechanism (26) is fixedly mounted on the inner wall of the matching frame (23), and a waistband mounting piece (27) is fixedly connected to one end of the matching frame (23);
the matching frame (23) is made of metal aluminum, and the supporting mechanism (26) is made of metal iron;
supporting mechanism (26) including fixed frame (261), sliding connection has sliding block (262) in fixed frame (261), the middle part of sliding block (262) is rotated and is connected with supporting wheel (263), the one end fixed mounting of sliding block (262) has second supporting spring (264).
2. The electric power service hydraulic tong of claim 1, characterized in that: a first supporting spring (6) is fixedly mounted between one end of the movable cutting knife (5) and the other end of the inner side of the mounting frame body (2), and the first supporting spring (6) is located on the side wall of the sliding column (4).
3. The electric power service hydraulic tong of claim 1, characterized in that: first slip circular slot (8) have transversely been seted up to the inboard one end of hydraulic drive section of thick bamboo (1), sliding connection has first piston (9) in first slip circular slot (8), second slip circular slot (10) have vertically been seted up to the lateral wall of hydraulic drive section of thick bamboo (1), sliding connection has second piston (11) in second slip circular slot (10).
4. The electric power service hydraulic tong of claim 3, characterized in that: oil groove (13) have been seted up at the middle part of hydraulic drive section of thick bamboo (1), one side fixed mounting of oil groove (13) has discharge valve (14), the opposite side fixed mounting of oil groove (13) has suction valve (15), just oil groove (13) are linked together with first slip circular slot (8) and second slip circular slot (10) respectively.
5. The electric power service hydraulic tong of claim 3, characterized in that: the top end middle part fixedly connected with spliced pole (12) of second piston (11), the top of spliced pole (12) is rotated and is connected the lateral wall of pressing handle (19), the lateral wall of pressing handle (19) has cup jointed lag (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010854026.8A CN112003109B (en) | 2020-08-24 | 2020-08-24 | Hydraulic clamp for electric power overhaul |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010854026.8A CN112003109B (en) | 2020-08-24 | 2020-08-24 | Hydraulic clamp for electric power overhaul |
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| Publication Number | Publication Date |
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| CN112003109A CN112003109A (en) | 2020-11-27 |
| CN112003109B true CN112003109B (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010854026.8A Active CN112003109B (en) | 2020-08-24 | 2020-08-24 | Hydraulic clamp for electric power overhaul |
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| CN203266692U (en) * | 2013-03-11 | 2013-11-06 | 任丽冰 | Hydraulic reinforcing steel bar pliers |
| CN110611271A (en) * | 2019-09-17 | 2019-12-24 | 国网山东省电力公司烟台市福山区供电公司 | Hydraulic clamp for electric power overhaul |
| CN210160307U (en) * | 2019-05-31 | 2020-03-20 | 王辉 | Steel bar bender |
| CN210589062U (en) * | 2019-09-30 | 2020-05-22 | 北京虹林泰电气工程有限公司 | Hydraulic pliers |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2334270A (en) * | 1998-02-14 | 1999-08-18 | Weatherford Lamb | Apparatus for attachment to pipe handling arm |
| NO340221B1 (en) * | 2015-06-26 | 2017-03-20 | Vetco Gray Scandinavia As | Hydraulic tool for use with a clamp connector |
| CN105932610B (en) * | 2016-05-25 | 2019-09-03 | 国网山东省电力公司东营市垦利区供电公司 | It is a kind of with the hydraulic tongs that function is auxiliarily fixed |
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2020
- 2020-08-24 CN CN202010854026.8A patent/CN112003109B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2878836Y (en) * | 2005-12-19 | 2007-03-14 | 李建平 | Safety valve for hydraulic nipper |
| CN203266692U (en) * | 2013-03-11 | 2013-11-06 | 任丽冰 | Hydraulic reinforcing steel bar pliers |
| CN210160307U (en) * | 2019-05-31 | 2020-03-20 | 王辉 | Steel bar bender |
| CN110611271A (en) * | 2019-09-17 | 2019-12-24 | 国网山东省电力公司烟台市福山区供电公司 | Hydraulic clamp for electric power overhaul |
| CN210589062U (en) * | 2019-09-30 | 2020-05-22 | 北京虹林泰电气工程有限公司 | Hydraulic pliers |
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| CN112003109A (en) | 2020-11-27 |
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