Portable engineering cost field data rapid recording board
By employing a foldable structure and magnetic fixing design, combined with a multi-functional module, the portability and operational reliability issues of on-site cost recording equipment have been resolved, achieving efficient and stable on-site data recording.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-07
AI Technical Summary
Existing on-site cost recording equipment is not portable, cumbersome to operate, easily damaged, and has limited functionality, especially in high-altitude or field operation scenarios where it is inefficient.
Featuring a foldable structure, magnetic fastening design, and multi-functional modules, it integrates recording, measurement, and calculation functions. Combined with a lightweight design, it achieves automatic locking and convenient pen storage and retrieval.
It improves the portability and operational efficiency of the equipment, ensures data security, and meets the needs of technicians for efficient operation in various scenarios.
Smart Images

Figure CN224465540U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of on-site data recording technology for engineering cost, and in particular to a portable on-site data recording board for engineering cost. Background Technology
[0002] In on-site cost estimation work, technicians often need to frequently record measurement data, draw sketches, or annotate drawings. Traditional recording methods often use rigid writing tablets or ordinary notebooks, which are inconvenient to carry and cumbersome to operate. Rigid writing tablets are fixed in size and take up a lot of space, making them unsuitable for the confined or frequently moving work environments on construction sites. Existing foldable recording tablets mostly use simple hinge connections, lacking an automatic locking mechanism after folding, making them prone to accidental unfolding during transport, causing equipment damage or data loss. In addition, recording pens usually have no fixed location, making them easy to lose or inconvenient to retrieve, especially in special working scenarios such as high-altitude or field operations, where frequent pen handling significantly reduces work efficiency. Although some products have pen slots, they do not consider pen protection when folded, leading to pen tip damage from pressure or ink leakage.
[0003] Therefore, there is an urgent need for a portable on-site data recording board for engineering cost that integrates foldability, automatic locking, convenient pen storage and retrieval, and lightweight design. Utility Model Content
[0004] To overcome the shortcomings of poor portability, limited functionality, and insufficient operational reliability of the equipment, this utility model provides a portable on-site data recording board for engineering cost that integrates foldability, automatic locking, convenient pen storage and retrieval, and lightweight design.
[0005] The technical solution of this utility model is as follows: a portable on-site data recording board for engineering cost, comprising a support plate one, a support plate two, a rotating shaft, a clamping component, a torsion spring, a folding component, an active magnet, a driven magnet, a fixing component, a recording pen, and a spring. The top of the support plate one is hinged to the support plate two via the folding component. The upper middle position of the support plate two is rotatably connected to the rotating shaft, and the clamping component is fixedly connected to the rotating shaft. Torsion springs are connected between the left and right sides of the clamping component and the support plate two. Active magnets are fixedly connected to the left and right sides of the bottom of the support plate one. Driven magnets are fixedly connected to the left and right sides of the top of the support plate two. The vertically corresponding active and driven magnets attract each other. A fixing component is fixedly connected to the right side of the support plate two, and a recording pen is slidably sleeved inside the fixing component. A spring connects the recording pen to the right side of the support plate two.
[0006] As a preferred technical solution of this utility model, it also includes an outer frame and a storage drawer. The outer frame is fixedly installed on the front side of the lower part of the support plate, and the storage drawer is placed inside the outer frame.
[0007] As a preferred embodiment of this utility model, it also includes a calculator, which is fixedly installed on the left side of the front part of the outer frame.
[0008] As a preferred technical solution of this utility model, it also includes a protractor and an elastic rope. A slot is opened on the right side of the support plate, and a protractor is installed in the slot. Elastic ropes are distributed vertically between the right side of the protractor and the right wall of the slot of the support plate.
[0009] As a preferred technical solution of this utility model, it also includes a measuring tape, and the measuring tape is fixedly installed on the lower left side of the support plate.
[0010] As a preferred technical solution of this utility model, it also includes a handle, with the handle being embedded and rotatably connected to the rear right side of the support plate.
[0011] Beneficial effects: This utility model significantly improves portability through its folding structure and magnetic fixing design, and solves the problem of single function by integrating a multi-functional module for recording, measuring and calculating, thus achieving the effect of meeting the needs of on-site technicians for efficient, stable and readily available operation. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0013] Figure 2 This is a three-dimensional structural diagram of the support plate, outer frame, calculator, and other components of this utility model.
[0014] Figure 3 This is a three-dimensional structural diagram of the clamping parts, measuring tape, and folding parts of this utility model.
[0015] Figure 4 This is a partial sectional view of the protractor, elastic cord, and fasteners of this utility model.
[0016] Figure 5 This is a three-dimensional structural diagram of the grip, spring, and recording pen components of this utility model.
[0017] The markings in the diagram are as follows: 1-Support plate one, 11-Support plate two, 12-Spindle, 13-Clamping piece, 14-Torsion spring, 15-Folding piece, 16-Active magnet, 17-Driven magnet, 2-Outer frame, 21-Storage drawer, 3-Calculator, 4-Protractor, 41-Elastic rope, 5-Fixing piece, 51-Recording pen, 52-Spring, 6-Measurement tape, 7-Handle. Detailed Implementation
[0018] Example: A portable on-site data recording board for engineering cost estimation, such as... Figures 1-5As shown, the system includes a support plate 1, a support plate 2 11, a rotating shaft 12, a clamping member 13, a torsion spring 14, a folding member 15, an active magnet 16, a driven magnet 17, a fixing member 5, a recording pen 51, and a spring 52. The top of the support plate 1 is hinged to the support plate 2 11 via the folding member 15. The rotating shaft 12 is rotatably connected to the middle of the upper part of the support plate 2 11. The clamping member 13 is fixedly connected to the rotating shaft 12. Torsion springs 14 are connected to the support plate 2 11 on both the left and right sides of the clamping member 13. Active magnets 16 are fixedly connected to the left and right sides of the bottom of the support plate 11. Driven magnets 17 are fixedly connected to the left and right sides of the top of the support plate 2 11. The vertically corresponding active magnets 16 and driven magnets 17 attract each other. The fixing member 5 is fixedly connected to the right side of the support plate 2 11. The recording pen 51 is slidably sleeved inside the fixing member 5. The spring 52 is connected between the recording pen 51 and the right side of the support plate 2 11.
[0019] like Figure 1 , Figure 2 and Figure 4 As shown, it also includes an outer frame 2 and a storage drawer 21. The outer frame 2 is fixedly installed on the lower front side of the support plate 1, and the storage drawer 21 for storing tools is placed inside the outer frame 2.
[0020] like Figure 1 and Figure 2 As shown, it also includes a calculator 3, which is fixedly installed on the front left side of the outer frame 2 for calculating data.
[0021] like Figures 2-4 As shown, it also includes a protractor 4 and an elastic rope 41. A slot is provided on the right side of the support plate 1, and the protractor 4 is installed in the slot. Elastic ropes 41 are distributed vertically between the right side of the protractor 4 and the right wall of the slot of the support plate 1.
[0022] like Figure 1 , Figure 3 and Figure 4 As shown, it also includes a measuring tape 6, which is installed on the lower left side of the support plate 21 by screws.
[0023] like Figure 5 As shown, it also includes a handle 7, and the handle 7 is embedded and rotatably connected to the rear right side of the support plate 2 11 for easy operation.
[0024] When the recorder uses this record board to record data on the construction cost site, the operator can pull out the storage drawer 21, put the paper and other tools needed into the storage drawer 21, and then push the storage drawer 21 back in for immediate use. First, rotate the clamping member 13 upwards, causing the torsion spring 14 to deform. Place the removed paper or drawing under the clamping member 13, then release it. The torsion spring 14 returns to its original position, causing the clamping member 13 to clamp the paper or drawing. When recording is needed, simply take out the recording pen 51 to record. When not in use, it can be placed back into the fixing member 5. When length measurement is needed, simply pull out the measuring tape 6. When measurement is required, release the measuring tape 6, which will automatically retract. When angle measurement is required, pull out the protractor 4. The calculator 3 facilitates data calculation for the operator. When the recording board is not in use, remove the paper and rotate the support plate 1 1 180° upwards around the folding piece 15 so that the back of the support plate 1 1 is in contact with the front of the support plate 2 11. At this time, the active magnet 16 installed at the bottom of the support plate 1 1 corresponds to the driven magnet 17 installed at the top of the support plate 2 11. Due to magnetic attraction, the folded state is automatically locked to prevent accidental unfolding. Finally, turn the handle 7 to lift and carry it.
Claims
1. A portable on-site data recording board for engineering cost estimation, characterized in that: It includes a support plate 1 (1), a support plate 2 (11), a rotating shaft (12), a clamping member (13), a torsion spring (14), a folding member (15), an active magnet (16), a driven magnet (17), a fixing member (5), a recording pen (51), and a spring (52). The top of the support plate 1 (1) is hinged to the support plate 2 (11) through the folding member (15). The rotating shaft (12) is rotatably connected to the upper middle position of the support plate 2 (11). The clamping member (13) is fixedly connected to the rotating shaft (12). A torsion spring (14) is connected between the left and right sides and the second support plate (11). An active magnet (16) is connected to the bottom left and right sides of the first support plate (1). A driven magnet (17) is connected to the top left and right sides of the second support plate (11). The vertically corresponding active magnet (16) and driven magnet (17) attract each other. A fixing member (5) is connected to the right side of the second support plate (11). A recording pen (51) is slidably sleeved in the fixing member (5). A spring (52) is connected between the recording pen (51) and the right side of the second support plate (11).
2. The portable on-site data recording board for engineering cost as described in claim 1, characterized in that: It also includes an outer frame (2) and a storage drawer (21). The outer frame (2) is installed on the lower front side of the support plate (1), and the storage drawer (21) is placed inside the outer frame (2).
3. The portable on-site data recording board for engineering cost as described in claim 2, characterized in that: It also includes a calculator (3), which is mounted on the front left side of the outer frame (2).
4. The portable on-site data recording board for engineering cost as described in claim 3, characterized in that: It also includes a protractor (4) and an elastic rope (41). A slot is provided on the right side of the support plate (1), and a protractor (4) is provided in the slot. An elastic rope (41) is connected between the right side of the protractor (4) and the right wall of the slot of the support plate (1) in a vertically distributed manner.
5. A portable on-site data recording board for engineering cost as described in claim 4, characterized in that: It also includes a measuring tape (6), and a measuring tape (6) is installed on the lower left side of the support plate 2 (11).
6. A portable on-site data recording board for engineering cost as described in claim 5, characterized in that: It also includes a handle (7), and the handle (7) is embedded and rotatably connected to the rear right side of the support plate (11).