Anti-theft screw and screwdriver for opening anti-theft screw
An anti-theft screw and screwdriver technology, applied in the field of mechanical spare parts, can solve problems such as lack of screw protection, and achieve the effect of reliable and stable screwing process, tight coordination, and ensuring the safety of items
Inactive Publication Date: 2017-07-14
绍兴诚邦化纤有限公司
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Problems solved by technology
[0004] A screw is a tool that uses the physical and mathematical principles of the oblique circular rotation and friction of an object to tighten the device parts step by step. It is an indispensable industrial necessity in daily life: the main classification of screws in the prior art includes There are three kinds of ordinary screws, machine screws, self-tapping screws and expansion screws. It is not difficult to find that one of the common points of these screws is the lack of protection for the screws themselves. Any operator can use a general-purpose screwdriver to remove them. How to create an anti-theft screw and a screwdriver to open the anti-theft screw is a technical problem we are currently facing
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[0024] In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0025] like Figure 1-6 As shown, an anti-theft screw 1 includes a screw body 10, the upper part of the screw body 10 is fixedly connected with a screw head 11, the top center of the screw head 11 is provided with a screw head center slot 110, and the side of the screw head center slot 110 is also The central axis of the anti-theft screw 1 is evenly provided with four anti-theft screw turning grooves 111 , the screw body 10 is fixedly provided with a screw sleeve circular baffle 101 , and a screw sleeve is sleeved at the gap between the screw sleeve circular baffle 101 and the screw head 11 . 12. A screw sleeve hole 121 is formed at the top center of the screw sleeve 12, and the screw sleeve hole 121 has the same radius as the centra...
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The invention discloses an anti-theft screw and a screwdriver for opening the anti-theft screw. The anti-theft screw comprises a screw body, a screw head and a screw sleeve. The screwdriver for opening the anti-theft screw comprises a screwing handle, a screwing connecting rod, an extension rod, a transmission rod and a screwdriver pull block; transmission teeth are arranged at the opposite side part of the extension rod to the transmission rod; the transmission rod is a concave round rod structure; the transmission rod is in engaged transmission with the tooth part on the side surface of the extension rod; and a pull block rotating block is a convex round rod structure, and is in engaged transmission with the transmission rod. The screw sleeve can wrap the screw head for hiding; the anti-theft screw is not liable to load and unload by an operator without a special tool, so that the object safety of anti-theft screw users is guaranteed; the users are convenient to operate the screwdriver; and the anti-theft screw and the screwdriver for opening the anti-theft screw are tightly matched, so that the screwing process is firm and stable, and the product durability is guaranteed.
Description
[0001] Technical field: [0002] The invention relates to the technical field of mechanical spare parts, in particular to an anti-theft screw and a screwdriver for opening the anti-theft screw. [0003] Background technique: [0004] A screw is a tool that uses the physical and mathematical principles of the oblique circular rotation and friction of an object to gradually fasten the mechanism of an object. It is an indispensable industrial necessities in daily life: the main categories of screws in the prior art include: There are three types of ordinary screws, machine screws, self-tapping screws and expansion screws. It is not difficult to find that a common feature of these types of screws is the lack of protection for the screws themselves. Any operator can use a general-purpose screwdriver to remove them. How to create an anti-theft screw and a screwdriver to open this anti-theft screw is a technical problem we are currently facing. [0005] Invention content: [0006] T...
Claims
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IPC IPC(8): F16B23/00F16B41/00B25B15/06
CPCB25B15/06F16B23/0023F16B41/005
Inventor 陈玉燕
Owner 绍兴诚邦化纤有限公司