Expansion screw bolt of double expansion sleeve pipe and method for manufacturing same
A technology of expansion sleeves and expansion bolts, which is applied in the direction of connecting components, pins, mechanical equipment, etc., and can solve problems affecting the fastening quality of bracket components and equipment and walls, and going out
Inactive Publication Date: 2013-06-12
王振国
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Problems solved by technology
It is used to install and fix various support components and equipment on concrete foundations or walls, but due to the popularization and application of new materials, new technologies and new structures of porous bricks, hollow bricks, concrete hollow blocks, light aggregate concrete or aerated concrete block masonry, Then use the above-mentioned expansion bolts to install and fix various bracket components and equipment on the walls of the above-mentioned masonry structure, and short expansion bolt bodies will appear. Inclined, long expansion bolt body after tightening the hex nut in the hole, pulling the bolt head protruding from the wall will also cause the bolt body to continue to go out, affecting the fastening quality of various support components and equipment and the wall
Method used
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[0010] This product has two manufacturing styles, style one figure 1 It consists of: hex nut 1, spring washer 2, flat washer 3, expansion sleeve 4, expansion sleeve 6, conical expansion pad 5, conical head bolt 7.
[0011] style two figure 2 It consists of: hex nut 1, spring washer 2, flat washer 3, expansion sleeve 4, expansion sleeve 8, conical expansion pad 5, adjustment pipe washer 14, conical head bolt 7.
[0012] image 3 is the front view of the tapered head bolt, figure 1 figure 2 The length of the tapered head bolt 7 in the middle is according to the specification of hollow brick and concrete hollow block, and the structure is customized. The length of screw thread 9 cuts off at about 2 / 3rds of expansion sleeve 6,8 length. The diameter is designed and produced according to relevant national regulations.
[0013] Figure 4 yes figure 1 figure 2 Front view of expansion sleeve 4, figure 1 figure 2 The length of the expansion sleeve 4 is determined accordin...
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The invention provides a double-expansive sleeve expansion bolt and a producing method thereof, which belong to the manufacturing technology field of construction hardware fastening pieces. The expansion bolt is characterized by consisting of a hexagonal nut(1), a spring washer(2), a flat washer(3), an expansive sleeve(4),(7), a conical expansion gasket(5), a regulating tube flat washer(6) and a conical head bolt(8). The product is suitable for installing and fixing various support elements and equipment on the wall of masonry structure of porous bricks, air bricks, concrete hollow blocks, light aggregate concrete or aerated concrete blocks. The bolt of the product can be designed and produced according to the national relevant regulations of quality, specification and standards also can be produced according to non-standard production in specific situations.
Description
technical field [0001] The invention provides a double-expansion casing expansion bolt and a manufacturing method thereof, which belong to the technical field of architectural hardware fastener manufacturing. Background technique [0002] The currently used expansion bolts are basically composed of: a conical head bolt with an expansion sleeve, a flat washer, a spring washer and a hexagonal nut. It is used to install and fix various support components and equipment on concrete foundations or walls, but due to the popularization and application of new materials, new technologies and new structures of porous bricks, hollow bricks, concrete hollow blocks, light aggregate concrete or aerated concrete block masonry, Then use the above-mentioned expansion bolts to install and fix various bracket components and equipment on the walls of the above-mentioned masonry structure, and short expansion bolt bodies will appear. After the inclined, long expansion bolt body is tightened with...
Claims
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IPC IPC(8): B23P15/00F16B13/06
Inventor 王振国
Owner 王振国