Visual angle and position joint debugging mechanism for code keyboard peep-proof cover

Abstract

The invention discloses a visual angle and position joint debugging mechanism for a code keyboard peep-proof cover. The mechanism comprises left and right supporting side plates arranged on the two sides of a code keyboard and a sight line guiding plate arranged above the code keyboard, the two sides of the sight line guiding plate are in slidable connection with the left and right supporting sideplates respectively, the two sides of the sight line guiding plate are each provided with two cylindrical sliding blocks distributed in a spaced mode, and the upper portions of the upper and right supporting side plates are provided with two guiding holes matched with the cylindrical sliding blocks; the whole sight line guiding plate are matched with the guiding holes in the left and right supporting side plates through the cylindrical sliding blocks arranged on the two sides to achieve slidable connection, so that synchronous adjustment of the visual angle and the position of the sight lineguiding plate is achieved, and when the visual angle of the sight line guiding plate is adjusted, the sight line of an operator can be projected to the keyboard all the time. Accordingly, the mechanism has the advantages of being simple in structure, convenient to use, capable of getting twofold results with half the effort, wide in application range, low in cost and the like.

Description

technical field [0001] The invention belongs to the field of anti-peep cover, in particular, relates to a viewing angle and position joint adjustment mechanism for the anti-peep cover of a password keyboard, and belongs to the technical field of information security protection equipment. Background technique [0002] Nowadays, in bank counters, ATMs, supermarket cash registers, POS machines and other occasions where non-cash transactions are applied, people need to manually enter the password through the PIN pad to complete the transaction. These non-cash transaction methods bring convenience to people's life and work. At the same time, it also creates hidden dangers for people's property safety. Once the transaction password is stolen by illegal personnel, the risk of property loss will be greatly increased. Therefore, people should try to cover up when entering the password to avoid leaking the transaction password due to peeping. [0003] For this reason, a peep-proof cov...

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Problems solved by technology

[0003] For this reason, a peep-proof cover of a fixed form is often arranged on the cipher keyboard, and people recognize the keys on the cipher keyboard through the observation windows formed by arrays of grids and strip holes on the privacy-proof cover. The viewing angle is set in advance and cannot be changed after installation. However, people have different heights and shapes, and the viewing angle set in advance cannot be applied to everyone. People can only adjust their limbs to match the viewing angle set in advance. , to see the password keyboard, although this anti-peeping cover has a certain anti-peeping effect, but its applicability is insufficient, people's use comfort and convenience are not enough, such as a fixed form of password keyboard disclosed in Chinese patent 201610651360.7 Anti-peep cover; there is also Chinese patent 201520623770.1 which discloses a kind of independent device password anti-peep cover, which forms an observation window with adjustable viewing angle through a plurality of blades that are respectively hinged at both ends of the side plate. However, this louver type On the one hand, because each blade is hinged separately, the flexibility of the adjustment process is insufficient; on the other hand, the adjusted field of view will change with the adjustment of the blade angle, and the whole picture of the password keyboard will not be visible. , and the adjustable range of the viewing angle is also limited. Obviously, this kind of anti-peeping cover also has the problems of applicability, comfort and convenience.

[0004] Therefore, the field is eager to develop a password keyboard privacy cover with a large viewing angle adjustment range, a wide visual field of view, flexible adjustment, good anti-peep effect, and comfortable use, so as to satisfy people's wide applicability for the password keyboard privacy cover. , with the needs of comfort and convenience, but so far there is no report on related technologies or products

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