An anti-theft screw and a screwdriver for opening the 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 easy operation.
Inactive Publication Date: 2019-01-01
绍兴诚邦化纤有限公司
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Problems solved by technology
[0002] Screws are the physical and mathematical principles of the oblique circular rotation and friction of objects, and are used to fasten the parts of objects step by step. They are indispensable industrial necessities in daily life: the main categories of screws in the prior art include 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 this anti-theft screw is a technical problem we are currently facing.
Method used
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[0019] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0020] Such as Figure 1-6 Shown, a kind of anti-theft screw 1, it comprises screw body 10, and the upper part of screw body 10 is fixedly connected with screw head 11, and screw head 11 top center is provided with screw head center groove 110, and the side of screw head center groove 110 is also along 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 fixed with a screw sleeve circular baffle 101, and the gap between the screw sleeve circular baffle 101 and the screw head 11 is sleeved with a screw sleeve 12. A screw sleeve hole 121 is provided at the top center of the screw sleeve 12, and the radius of the screw sleeve hole 121 is the same as that of the ...
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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
Technical field: [0001] The invention relates to the technical field of mechanical parts, in particular to an anti-theft screw and a screwdriver for opening the anti-theft screw. Background technique: [0002] Screws are the physical and mathematical principles of the oblique circular rotation and friction of objects, and are used to fasten the parts of objects step by step. They are indispensable industrial necessities in daily life: the main categories of screws in the prior art include 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. For many unethical and even chances of lawbreakers causing damage, how to manufacture a kind of anti-theft screw and the screwdriver that opens this anti-theft screw is the technical problem that we fa...
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