Detachable fastener and special spanner matched therewith
A fastener and wrench technology, applied in the field of special wrenches, can solve the problems of poor anti-theft, can not be easily disassembled, inconvenient, etc., and achieve the effect of convenient installation and maintenance, simple structure, and good anti-disassembly effect.
Inactive Publication Date: 2012-04-11
SHANGHAI FENGXIANG ELECTRIC POWER EQUIP
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Problems solved by technology
[0002] The installation of outdoor equipment such as high-voltage electrical equipment is often fixed by fasteners, but the anti-theft of this type of equipment has become a key point. Conventionally, bolts and nuts are used to fix the connected parts, but its anti-theft performance is too poor. It can be removed with ordinary tools; if a special anti-loosening and anti-unloading nut is used, although it can have a good effect on anti-theft, the anti-loosening and anti-unloading nut is disposable, that is, it cannot be disassembled after installation. It is necessary to destroy the nut, and it is very inconvenient to meet the need for normal maintenance of the equipment
Method used
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[0017] like figure 1 As shown, the specific embodiment of the present invention is a detachable fastener, including a sheath 1 coaxially arranged, an anti-removal bolt 2 and its nut 3, an upper clamping pad 4, a lower clamping seat 5, and an upper clamping pad 4 The upper end surface of the upper end face is vertically provided with a bolt hole 41 that is compatible with the anti-dismounting bolt 2 rod diameters. The transverse aperture of the bolt hole 41 is larger than the anti-dismounting bolt 2 rod diameters. One end of the upper card pad 4 is vertically provided with a rib 42, and the lower card seat 5 is provided with a side edge 51 adjacent to the rib 42 of the upper card pad 4 to form a semi-closed state. The cavity 52 where the nut 3 is placed, the side of the cavity 52 is provided with a placement opening 53, the sheath 1 is a barrel-shaped part, the bottom is provided with a through hole 11b, the sheath 1 is arranged on the upper end surface of the upper clamping pa...
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The invention relates to a detachable fastener, which comprises a sheath, a locking bolt with a nut, an upper fastening washer and a lower fastening base arranged coaxially, the upper end surface of the upper fastening washer is provided with a vertical bolt hole matched with the diameter of the locking bolt, one end of the upper fastening washer is provided with a vertical flange, the lower fastening base is provided with a side which is close to the flange of the upper fastening washer, so that a semi-closed state is formed, the interior of the lower fastening base is provided with a cavity for holding the nut, one side of the cavity is provided with a placement opening, the sheath is a barrel-shaped part, the bottom of the sheath is provided with a through hole, the sheath is arranged on the upper end surface of the upper fastening washer, the locking bolt comprises a bolt and a protective cap, a section of cylinder is fixed on the upper end surface of the bolt, the protective cap is firmly sleeved on the top end of the cylinder, the outer diameter of the protective cap is slightly greater than the diagonal size of the head of the bolt, and the protective cap and the bolt are movably connected together. The anti-detaching effect of the detachable fastener is good, however, the detachable fastener can be detached by a special spanner matched with the detachable fastener, and outdoor equipment can be conveniently mounted and maintained as well.
Description
technical field [0001] The invention relates to a threaded fastener, in particular to a detachable fastener and a matching special wrench. Background technique [0002] The installation of outdoor equipment such as high-voltage electrical equipment is often fixed by fasteners, but the anti-theft of this type of equipment has become a key point. Conventionally, bolts and nuts are used to fix the connected parts, but its anti-theft performance is too poor. It can be removed with ordinary tools; if a special anti-loosening and anti-unloading nut is used, although it can have a good effect on anti-theft, the anti-loosening and anti-unloading nut is disposable, that is, it cannot be disassembled after installation. It is necessary to destroy the nut, and it is very inconvenient to meet the need for normal maintenance of the equipment. Contents of the invention [0003] The object of the present invention is to provide a detachable fastener with simple structure and anti-disass...
Claims
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Login to View More IPC IPC(8): F16B41/00B25B13/48
Inventor 徐军联徐锋
Owner SHANGHAI FENGXIANG ELECTRIC POWER EQUIP