CN2248792Y - 膨胀螺钉 - Google Patents

膨胀螺钉 Download PDF

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Publication number
CN2248792Y
CN2248792Y CN 94245068 CN94245068U CN2248792Y CN 2248792 Y CN2248792 Y CN 2248792Y CN 94245068 CN94245068 CN 94245068 CN 94245068 U CN94245068 U CN 94245068U CN 2248792 Y CN2248792 Y CN 2248792Y
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bolt
wall
wing
butterfly nut
utility
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CN 94245068
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邢刚
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Abstract

本实用新型提供一种五金产品，尤其是一种紧固于墙上的膨胀螺钉。它是由蝶形螺母、螺栓、螺栓套筒构成，其最大特点是蝶形螺母为圆锥形，其两侧各有一突翼，螺栓套筒为圆管形，其进入墙体一端开有四个槽，螺形螺母上突翼插入螺栓套筒一端槽内，蝶形螺母与螺栓套筒紧密接触，因而能使蝶形螺母不能与螺栓同步转动，保证螺栓有力地旋入墙体，将物体紧固于墙上。

Description

膨胀螺钉
本实用公开一种螺钉，尤其是一种能紧固于墙上的膨胀螺钉。
现在市场上有几种膨胀螺钉。一种是螺栓大头在墙内，拧紧螺栓时，其带螺纹小头伸出墙外，越拧紧伸出墙外越多，很不美观并碍事，另一种是用软塑料做膨胀套管，用自攻木螺钉拧入，虽然外露部份较少，但负载力小。
本实用新型的目的是提供一种膨胀螺钉，它在将螺栓拧入时，能使螺母不转动，因而保证了它能最大限度旋入螺栓，将物品紧紧地固定于墙体。
上述产品可由这样手段实现，它的设计原则是，将传统的膨胀螺栓一分为二，将原螺栓上锥形部份改制成蝶形螺母，其螺纹部份改制成单独螺栓。按照国家有关规定，制作蝶形螺母。该螺母为一锥形，其两侧各有一突翼，突翼边厚有一定规格，再制作螺栓套筒，其外形为一园管形，在其进入墙体一端内开有四条槽孔，槽孔宽度略大于突翼边厚，将蝶形螺母中两突翼插入螺栓套筒槽孔中，蝶形螺母与螺栓套筒紧密接触，再选用合适螺栓，能合适旋入蝶形螺母内即成。
本产品的优点是：由于螺栓能最大限度旋进墙体，故外露部份极少，由于螺形螺母中突翼紧固于螺栓套筒上，故蝶形螺母不会转动，保证螺栓旋入，使物品能紧固于墙体表面。
本实用新型用附图及实施例作进一步说明
说明书附图1为产品结构示意图。
说明书附图2为蝶形螺母俯视图。
说明书附图3为蝶形螺母侧视图。
说明书附图4为本产品安装示意图。
图中标号(1)为蝶形螺母，(2)为螺栓，(3)为螺栓套筒，(4)为突翼，(5)为槽孔。按照国家标准及设计图纸，制作蝶形螺母(1)，其为锥形，两侧各有一突翼(4)，其内为带螺纹的通孔，制作螺栓套筒(3)，其为园管形，进入墙体一端开有四槽孔(5)，使突翼(4)边插入其中，选购合适的螺栓(2)，在使用时，将蝶形螺母(1)二突翼(4)嵌入螺栓套筒(3)的槽孔(5)中，将螺栓套筒(3)置于墙体中，再用螺栓(2)旋入蝶形螺母(1)即可。

Claims (1)

1.一种膨胀螺钉，它是由蝶形螺母(1)、螺栓(2)、螺栓套筒(3)构成，其特征是蝶形螺母(1)为锥形，其两侧各有一突翼(4)，螺栓套筒(3)为园管形，其进入墙体一端上开有四个槽孔(5)，使突翼(4)嵌入其内，蝶形螺母(1)与螺栓套筒(3)紧密接触螺栓(2)拧入蝶形螺母(1)内。
CN 94245068 1994-11-14 1994-11-14 膨胀螺钉 Expired - Fee Related CN2248792Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 94245068 CN2248792Y (zh) 1994-11-14 1994-11-14 膨胀螺钉

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 94245068 CN2248792Y (zh) 1994-11-14 1994-11-14 膨胀螺钉

Publications (1)

Publication Number Publication Date
CN2248792Y true CN2248792Y (zh) 1997-03-05

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Family Applications (1)

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CN 94245068 Expired - Fee Related CN2248792Y (zh) 1994-11-14 1994-11-14 膨胀螺钉

Country Status (1)

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CN (1) CN2248792Y (zh)

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