Engineering cost record book capable of expanding pages
By designing an expandable page engineering cost record book, the problem of difficult data modification was solved, and the paper size could be flexibly expanded and adjusted, improving data accuracy and ease of use.
CN223657883UActive Publication Date: 2025-12-12NANTONG BIAOTONG CONSTR ENG CO LTD
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Patent Information
- Application Number
- CN202520419972.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Technical Problem
Existing engineering cost record books are prone to problems such as difficulty in revision and poor appearance when data is modified.
Method used
An expandable engineering cost record book was designed. By setting up expandable pages and connectors, it allows the number and position of writing pages to be added or adjusted as needed. The tear-out of the expandable pages enables multiple usage methods. Combined with magnetic blocks and connecting strips, it improves ease of use and practicality.
Benefits of technology
It enables flexible expansion and adjustment of writing paper, improves the accuracy and ease of use of engineering cost data, and simplifies the data adjustment process.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model relates to the technical field of recording books, and discloses a project cost recording book capable of expanding pages, which comprises a first connecting piece, the right side of the first connecting piece is connected with two groups of first protective paperboards and a plurality of groups of writing paper, and the plurality of groups of writing paper are respectively positioned on the opposite sides of the two groups of first protective paperboards. The upper side of the first protective paperboard on the upper side is connected with a second connecting piece, the second connecting piece and the first connecting piece are the same in structure, multiple sets of expansion paper are arranged on the outer side of the second connecting piece, and the first protective paperboard and the writing paper are each provided with a containing groove matched with the first connecting piece. According to the scheme, by arranging the expansion paper, the writing paper can be expanded according to needs, objects needing to be added can be expanded, the first connecting piece can be opened to add additional writing paper according to needs, and the use practicability of the device is improved.
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