a ratchet wrench
A pawl and handle technology, applied in the field of pawl wrench, can solve the problems of hidden heat defects, inconvenient use, broken equipment wire clips, etc., and achieve the effects of reducing labor intensity and work risk, ensuring work quality, and being easy to carry
Active Publication Date: 2017-03-08
ZIGONG POWER SUPPLY COMPANY STATE GRID SICHUAN ELECTRIC POWER +1
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Problems solved by technology
And from time to time in the work, the situation of fingers being crushed and the limitations of the tools themselves are inconvenient to use; Influence, it is not easy to achieve a close fit between the wire clip fasteners after installation, it is easy to cause poor contact, cause heat generation after power on, form a hidden danger of thermal defects, and even cause equipment faults where the equipment wire clips are broken due to overheating. This type of fault is a power line, Frequent hidden dangers and failures in the operation and maintenance of power transformation facilities and distribution networks. Once such failures occur in transmission lines or substations, it is easy to cause large-scale power outages
Method used
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[0018] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings. Such as figure 1 , figure 2 As shown, a pawl wrench includes a handle 3, a sleeve 1, an adjustment device 4 and six pawls 2; the end of the handle 3 is fixedly connected to the outer wall of the sleeve 1; each pawl 2 passes through the sleeve 1, They are evenly arranged in a circular shape with the central axis of the sleeve 1 as the axis, and are axially slidably connected with the inner wall of the sleeve 1 through the pressure block 7; the pawl 2 includes a clamping part 21 and a transmission part 22, and the transmission part 22 It is arc-shaped in the axial direction with the convex side facing outwards, and its end is fixedly connected with the clamping part 21 ;
[0019] The pawl 2 can be adjusted to advance or retreat in the sleeve 1 through the adjusting device 4. Although the pressure block 7 used to limit each pawl 2 is located on a cir...
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The invention discloses a pawl spanner. The pawl spanner comprises a handle, a socket, an adjusting device and six pawls. The end of the handle is fixedly connected with the outer wall of the socket. The pawls penetrate through the socket and are arranged in a circle with the central axis of the socket as the axis and axially connected with the inner wall of the socket in a sliding mode through pressing blocks. Each pawl comprises a clamping part and a transmission part, wherein the transmission part is in an arc shape, the protruding side of the transmission part faces outwards, and the end of the transmission part is fixedly connected with the clamping part. The adjusting device is connected to one end of the socket and further connected with the transmission parts of the pawls. By means of the pawl spanner, the body mechanics can be fully utilized for meeting the requirement for reliable installation quality in construction, overhaul and the like, the labor intensity and working danger of workers can be effectively reduced, working quality can be guaranteed, and meanwhile the requirements for portability, lightness, operation convenience, durability and reliability can be met.
Description
technical field [0001] The invention relates to the technical fields of installation and construction of power transmission and distribution lines in electric power systems, maintenance and overhaul, in particular to a ratchet wrench. Background technique [0002] In the process of operation and maintenance, maintenance, installation and construction of power transmission and distribution lines, power transformation equipment, power supply facilities, etc., the installation and removal of various equipment must require tools such as adjustable wrench, socket wrench, ring wrench or dead wrench. Operations, such as the installation and removal of parallel trench clamps, strain clamps and equipment clamps, and distribution network isolation knife gate ports, due to the limitations of the equipment itself, the working conditions on the pole, and the working conditions in various cabinets, etc. , requires multiple suitable tools to complete. And from time to time in the work, th...
Claims
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IPC IPC(8): B25B13/46B25B23/16
CPCB25B13/463B25B23/16
Inventor 余果吴玉娟周义黄洋卢发彬
Owner ZIGONG POWER SUPPLY COMPANY STATE GRID SICHUAN ELECTRIC POWER