CN102699856A - 一种拉拔式的螺丝刀 - Google Patents

一种拉拔式的螺丝刀 Download PDF

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Publication number
CN102699856A
CN102699856A CN2012102101883A CN201210210188A CN102699856A CN 102699856 A CN102699856 A CN 102699856A CN 2012102101883 A CN2012102101883 A CN 2012102101883A CN 201210210188 A CN201210210188 A CN 201210210188A CN 102699856 A CN102699856 A CN 102699856A
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handle
diameter
inner handle
outdoor
interior axle
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CN2012102101883A
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English (en)
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傅小理
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Individual
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Individual
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Priority to CN2012102101883A priority Critical patent/CN102699856A/zh
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Abstract

一种拉拔式的螺丝刀，主要由内手柄、外手柄、内轴、外杆组成。其特征在于：内手柄和内轴为一体成型，外手柄和外杆为一体成型，内手柄的直径28mm，内轴的直径为4.8mm，外手柄的外径35mm，外杆的外径8mm内径5mm,内手柄连同内轴一起插入外手柄内，内手柄与外手柄为梅花齿配合，内轴与外杆为梅花齿配合，内手柄和内轴在外手柄和外杆内的活动距离为100mm。当螺丝的紧固力较大时，把内手柄从B端向A端拉长，一只手握住外手柄，另一手握住内手柄，两只手同时施加旋转力，以便达到更大的拆卸力。

Description

一种拉拔式的螺丝刀
技术领域
 本发明涉及一种拆卸用工具，具体的讲是一种拉拔式的螺丝刀。
背景技术
很多螺丝因为长时间没有拆卸或生锈，导致常规的螺丝起子不易拆卸，给维修工作造成不便。
发明内容
本发明的目的在于提供一种拉拔式的螺丝刀，具有在保证原螺丝刀功能的情况下，还具有提高旋转施加力面积，以利于应付紧固力更大的螺丝。
本发明是以如下技术方案实现的：本一种拉拔式的螺丝刀，主要由内手柄、外手柄、内轴、外杆组成。其特征在于：内手柄和内轴为一体成型，外手柄和外杆为一体成型，内手柄的直径28mm，内轴的直径为4.8mm，外手柄的外径35mm，外杆的外径8mm内径5mm,内手柄连同内轴一起插入外手柄内，内手柄与外手柄为梅花齿配合，内轴与外杆为梅花齿配合，内手柄和内轴在外手柄和外杆内的活动距离为100mm。当螺丝的紧固力较大时，把内手柄从B端向A端拉长，一只手握住外手柄，另一手握住内手柄，两只手同时施加旋转力，以便达到更大的拆卸力。
所述的梅花齿是保证内手柄和外手柄只能里外拉伸而或缩进，而不能左右旋转。
本发明的有益效果是：具有在保证原螺丝刀功能的情况下，还具有提高旋转施加力面积，以利于应付紧固力更大的螺丝。
附图说明
图1是本发明一种拉拔式的螺丝刀的复位构造图。
图2是本发明一种拉拔式的螺丝刀的伸长构造图。
图中1.内手柄，2.外手柄，3.内轴，4.外杆。
具体实施方式
图1、图2是本发明一种拉拔式的螺丝刀的构造图，其构造包括内手柄1、外手柄2、内轴3、外杆4。在说明书附图中：内手柄1和内轴3为一体成型，外手柄2和外杆4为一体成型，内手柄1的直径28mm，内轴3的直径为4.8mm，外手柄2的外径35mm，外杆4的外径8mm内径5mm,内手柄1连同内轴3一起插入外手柄2内，内手柄1与外手柄2为梅花齿配合，内轴3与外杆4为梅花齿配合，内手柄1和内轴3在外手柄2和外杆4内的活动距离为100mm。

Claims (1)

1.一种拉拔式的螺丝刀，主要由内手柄、外手柄、内轴、外杆组成，其特征在于：内手柄和内轴为一体成型，外手柄和外杆为一体成型，内手柄的直径28mm，内轴的直径为4.8mm，外手柄的外径35mm，外杆的外径8mm内径5mm,内手柄连同内轴一起插入外手柄内，内手柄与外手柄为梅花齿配合，内轴与外杆为梅花齿配合，内手柄和内轴在外手柄和外杆内的活动距离为100mm，当螺丝的紧固力较大时，把内手柄从B端向A端拉长，一只手握住外手柄，另一手握住内手柄，两只手同时施加旋转力，以便达到更大的拆卸力。
CN2012102101883A 2012-06-25 2012-06-25 一种拉拔式的螺丝刀 Pending CN102699856A (zh)

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CN2012102101883A CN102699856A (zh) 2012-06-25 2012-06-25 一种拉拔式的螺丝刀

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CN2012102101883A CN102699856A (zh) 2012-06-25 2012-06-25 一种拉拔式的螺丝刀

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CN102699856A true CN102699856A (zh) 2012-10-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103567948A (zh) * 2013-10-18 2014-02-12 国家电网公司 助力改锥

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376397A (en) * 1981-02-13 1983-03-15 Newby Robert A Apparatus for variably spacing a driving tool and a driven tool
GB2209300A (en) * 1987-06-24 1989-05-10 Geoffrey James Hawkins A telescopic extension handle for use with a motor vehicle wheel nut spanner
CN2113131U (zh) * 1992-01-20 1992-08-19 赵宇 增力活扳手
CN201244790Y (zh) * 2008-07-22 2009-05-27 王昕� 改进型螺丝刀
CN202622663U (zh) * 2012-06-25 2012-12-26 傅小理 一种拉拔式的螺丝刀

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376397A (en) * 1981-02-13 1983-03-15 Newby Robert A Apparatus for variably spacing a driving tool and a driven tool
GB2209300A (en) * 1987-06-24 1989-05-10 Geoffrey James Hawkins A telescopic extension handle for use with a motor vehicle wheel nut spanner
CN2113131U (zh) * 1992-01-20 1992-08-19 赵宇 增力活扳手
CN201244790Y (zh) * 2008-07-22 2009-05-27 王昕� 改进型螺丝刀
CN202622663U (zh) * 2012-06-25 2012-12-26 傅小理 一种拉拔式的螺丝刀

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103567948A (zh) * 2013-10-18 2014-02-12 国家电网公司 助力改锥
CN103567948B (zh) * 2013-10-18 2017-01-25 国家电网公司 助力改锥

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Application publication date: 20121003