CN2303970Y - 螺旋异形钉 - Google Patents

螺旋异形钉 Download PDF

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Publication number
CN2303970Y
CN2303970Y CN 97216119 CN97216119U CN2303970Y CN 2303970 Y CN2303970 Y CN 2303970Y CN 97216119 CN97216119 CN 97216119 CN 97216119 U CN97216119 U CN 97216119U CN 2303970 Y CN2303970 Y CN 2303970Y
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赵允修
张宏宇
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Abstract

木质结构上使用的螺旋异形钉,钉杆上螺旋沟槽有大小相邻沟槽两种,大沟槽为圆弧形,小沟槽边为双刃带内槽形,沿轴心纵向螺旋角为20°—25°,大沟槽宽度为小沟槽宽度的6—7倍,钉杆上螺旋头数为3—4个,左右旋均可,螺旋异形钉使用中用钉量比普通元钉减少一半左右,压入时阻力面积增大,固着力强,抗拉力比普通元钉提高5倍,由于螺旋角较小,易于钉进,不易弯曲,广泛应用于各类型木质结构的连接。

Description

螺旋异形钉
本实用新型涉及用于木质结构连结的螺旋异形钉。
以前的木工用元钉,开始压入时,如施加压力的作用线和钉杆轴心线不一致,容易歪斜,元钉对木材固着力较差,且易使薄小木材开裂,另一种木螺钉,使用麻烦,易松动。
本实用新型的目的在于避免上述现有技术中存在的不足之处,而提供一种使用方便,螺旋角小易钉入,钉杆不易歪斜,对木材加强固着力的多头大小相邻沟槽螺旋异形钉。
钉入木质结构上的螺旋异形钉,材料用一般低碳钢丝,由钉帽、钉杆及钉尖组成,钉杆上螺旋沟槽有大小相邻沟槽两种,大沟槽为圆弧形,小沟槽边为双刃带内槽形,沿轴心纵向螺旋角θ是一样的,螺旋为多个头数。由冷挤滚压设备制成,钉杆的螺旋自杆的总长度20%处开始,至钉尖菱形面止。
优点及效果:
1、螺旋异形钉螺纹有相邻大小两种沟槽,其横截面不同,压入时阻力面积增大,固着力加强,抗拉力比普通元钉提高5倍。
2、螺旋旋转角θ较小,向下受力时易于钉进,有方向性转动将力分解,使钉体不易弯曲,较普通元钉打弯率下降80%。
3、在使用中用钉量比元钉减少50%。
其主要用途为各类型木质结构的连接,如包装箱、办公家俱的制造、房屋装修等。
附图的图面说明:
图1为螺旋异形钉主视图
图2为螺旋异形钉大小相邻两种沟槽垂直A-A剖面局部放大示意图
本实用新型的实施例结合附图作进一步描述:
螺旋异形钉的钉帽(1)和钉尖(5)与普通元钉相同。
图1为主视图,图2为图1螺旋部分垂直A-A剖面放大示意图。螺旋大沟槽(3)宽度B为小沟槽(4)宽度b的6-7倍。大沟槽的圆弧半径R沟槽深度因钉杆直径大小不同而异,小沟槽边为双刃带、内槽形,沟槽深度较浅。
从图1中看到螺旋沿轴心纵向螺旋角θ为20°-25°钉杆螺旋头数为3-4个,螺旋左右旋均可。
螺旋异形钉规格钉杆(2)直径(毫米) 2.5  2.5  2.8  2.8  3.1  3.1  3.4  3.75钉长度(毫米)      40    50    50    65    50    65    65    76

Claims (4)

1、木质结构上使用的螺旋异形钉,由钉帽、钉杆及钉尖组成,其特征在于:
钉杆上螺旋沟槽有大小相邻沟槽两种,大沟槽(3)为圆弧形,小沟槽(4)边为双刃带、内槽形,沿轴心纵向旋转角θ是一样的,螺旋为多个头数。
2、根据权利要求1所述的螺旋异形钉,其特征在于:沿轴心纵向螺旋角θ为20°-25°。
3、根据权利要求1所述的螺旋异形钉,其特征在于:螺旋大沟槽宽度B为小沟槽宽度b的6-7倍。
4、根据权利要求1所述的螺旋异形钉,其特征在于:钉杆上螺旋头数为3-4个,左右旋均可。
CN 97216119 1997-05-23 1997-05-23 螺旋异形钉 Expired - Fee Related CN2303970Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 97216119 CN2303970Y (zh) 1997-05-23 1997-05-23 螺旋异形钉

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 97216119 CN2303970Y (zh) 1997-05-23 1997-05-23 螺旋异形钉

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CN2303970Y true CN2303970Y (zh) 1999-01-13

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CN 97216119 Expired - Fee Related CN2303970Y (zh) 1997-05-23 1997-05-23 螺旋异形钉

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1295444C (zh) * 2004-01-16 2007-01-17 何人东 具有复数螺旋角螺纹的螺丝及制作该种螺丝的模具

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1295444C (zh) * 2004-01-16 2007-01-17 何人东 具有复数螺旋角螺纹的螺丝及制作该种螺丝的模具

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