An engineering cost accounting device
By introducing a flip-out extension plate and a magnetic adsorption structure into the engineering cost accounting device, the problem of unstable construction site drawings was solved, and efficient and stable accounting operations and tool management were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUHAI DELIAN ENGINEERING CONSULTING CO LTD
- Filing Date
- 2025-10-17
- Publication Date
- 2026-07-31
AI Technical Summary
The lack of a suitable platform for writing and placing drawings at the construction site makes large-sized drawings prone to shifting and wrinkling, affecting the efficiency and accuracy of project cost accounting, especially when multiple people are collaborating to verify the data.
An engineering cost calculation device was designed, which includes a flip-out extension plate and an adjustable support structure. It uses magnetic adsorption to fix drawings and integrates measuring tools and recording supplies, so as to achieve integrated portability and management.
It provides a stable platform for writing and placing drawings, avoiding drawing displacement and creases, improving the smoothness and efficiency of accounting operations, reducing tool loss, and protecting equipment from environmental damage.
Smart Images
Figure CN224572342U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of accounting device technology, specifically to an engineering cost accounting device. Background Technology
[0002] Construction cost refers to the professional work of calculating, determining, controlling and managing various expenses throughout the entire process of a construction project, from decision-making, design, construction to completion and delivery. Its core is to calculate all costs required for the project (including labor, materials, equipment, construction, management, fees, taxes, etc.).
[0003] Chinese patent publication number CN216568780U discloses an engineering cost calculation device. Through the coordinated action of an elastic strap, a dual-axis motor, a connecting groove, a first bevel gear, a limiting groove, a second bevel gear, a screw, a limiting column, a storage groove, a support column, and a baffle, the device facilitates both carrying and use anytime and anywhere, thereby improving the efficiency of engineering cost calculation.
[0004] However, in the engineering cost calculation device mentioned in the above scheme, the interpretation of drawings and the recording of data are the core links in the calculation work. However, there is generally no suitable writing platform on the construction site, making it inconvenient to record and calculate. In addition, the drawings used for engineering cost are generally large in size, and there is a lack of effective fixing and support devices on site. Large-sized drawings are prone to wrinkles and displacement when placed. Staff need to repeatedly adjust the position of the drawings, which wastes time and makes it difficult to accurately compare the information on the drawings for calculation. Especially when multiple people are working together to check, the instability of the drawings further reduces the efficiency of work collaboration.
[0005] Therefore, it is necessary to invent an engineering cost accounting device. Utility Model Content
[0006] The purpose of this invention is to provide an engineering cost calculation device to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an engineering cost calculation device, comprising a calculation box, C-shaped rods fixedly provided on both sides of the calculation box, a rotating shaft rotatably provided between the two side walls of the C-shaped rods, an extension plate fixedly provided on the outer wall of the rotating shaft rotatably, a torsion spring rotatably connected between one side of the extension plate and one side of the C-shaped rod, a groove provided at the bottom of the extension plate, a rotating shaft rotatably provided between the two side walls of the groove, a support plate fixedly provided on the outer wall of the rotating shaft rotatably, a torsion spring rotatably connected between the support plate and the side wall of the groove, and a telescopic plate slidably provided at the bottom of the support plate.
[0008] Preferably, the bottom of the support plate is provided with a sliding groove, and the telescopic plate is slidably installed in the sliding groove.
[0009] Preferably, spring telescopic rods are fixedly provided on both sides of the telescopic plate, and a round-headed column is fixedly provided at the other end of the spring telescopic rod. A circular groove one and a circular groove two are provided on one side of the support plate.
[0010] Preferably, the top of the accounting box is provided with a C-shaped groove, and symmetrically distributed L-shaped magnets are movably engaged in the C-shaped groove.
[0011] Preferably, one end of the rotating shaft passes through one end of the C-shaped rod and a disc is fixedly provided at its end. A symmetrically distributed fixing block is fixedly provided on one side of the accounting box. A screw is threaded into one side of the fixing block. The screw movably passes through the L-shaped magnet and is inserted into the disc.
[0012] Preferably, the outer wall of the disc has multiple slots, one side of the L-shaped magnet has a through slot, and the screw is movably inserted through the through slot and into the slot.
[0013] Preferably, the accounting box has placement slots on both sides, and the extension plate is movably installed in the placement slots.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. By using a flip-out extension plate and an adjustable support structure, a stable writing platform can be quickly constructed, solving the problem of lack of suitable writing and drawing placement space on construction sites; the magnetic adsorption principle is used to quickly fix materials such as drawings, avoiding the problems of large-size drawings shifting and wrinkling, reducing the time cost of repeated adjustments, and making data recording, drawing review and other calculation operations smoother and more efficient.
[0016] 2. The device integrates the storage functions of measuring tools and recording supplies, realizing the integrated carrying and management of items needed for accounting, and avoiding tools from being scattered or lost. When not in use, the extension plate, support plate and other structures can be folded and stored in the accounting box. The mechanical locking ensures the stability of the storage state, which not only reduces the space occupied by the device and facilitates on-site handling and storage, but also protects tools and drawings from damage by the on-site environment, thus improving the practicality and durability of the equipment. Attached Figure Description
[0017] Figure 1 A schematic diagram of the overall structure of this utility model;
[0018] Figure 2 A schematic diagram of the extension plate structure provided by this utility model;
[0019] Figure 3 Provided by this utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;
[0020] Figure 4 A schematic diagram of the support plate structure provided by this utility model;
[0021] Figure 5 A schematic diagram of the round-headed column structure provided by this utility model.
[0022] In the diagram: 1. Accounting box; 11. C-shaped rod; 12. Rotating shaft one; 121. Disc; 122. Slot; 13. Extension plate; 131. Torsion spring one; 132. Groove; 14. C-shaped groove; 15. L-shaped magnet; 17. Placement slot; 18. Fixing block; 181. Screw; 21. Support plate; 211. Rotating shaft two; 212. Torsion spring two; 213. Circular groove one; 214. Circular groove two; 217. Slide; 22. Telescopic plate; 24. Spring telescopic rod; 25. Round head column. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Example: Figures 1-5 As shown, this utility model provides an engineering cost calculation device, including a calculation box 1. C-shaped rods 11 are fixedly provided on both sides of the calculation box 1. A rotating shaft 12 is rotatably provided between the two side walls of the C-shaped rods 11. An extension plate 13 is fixedly provided on the outer wall of the rotating shaft 12. A torsion spring 131 is connected between one side of the extension plate 13 and one side of the C-shaped rod 11. A groove 132 is provided at the bottom of the extension plate 13. A rotating shaft 211 is rotatably provided between the two side walls of the groove 132. A support plate 21 is fixedly provided on the outer wall of the rotating shaft 211. A torsion spring 212 is connected between the support plate 21 and the side wall of the groove 132. A telescopic plate 22 is slidably provided at the bottom of the support plate 21.
[0025] Furthermore, a groove 217 is provided at the bottom of the support plate 21, and the telescopic plate 22 is slidably installed in the groove 217.
[0026] Furthermore, spring telescopic rods 24 are fixedly provided on both sides of the telescopic plate 22, and a round-headed column 25 is fixedly provided at the other end of the spring telescopic rod 24. A circular groove 1 213 and a circular groove 214 are provided on one side of the support plate 21.
[0027] Furthermore, a C-shaped groove 14 is provided on the top of the accounting box 1, and symmetrically distributed L-shaped magnets 15 are movably secured in the C-shaped groove 14 to facilitate the placement of the L-shaped magnets 15.
[0028] Furthermore, one end of the rotating shaft 12 passes through one end of the C-shaped rod 11 and a disc 121 is fixedly provided at its end. A symmetrically distributed fixing block 18 is fixedly provided on one side of the accounting box 1. A screw 181 is threaded into one side of the fixing block 18. The screw 181 movably passes through the L-shaped magnet 15 and is inserted into the disc 121.
[0029] Furthermore, the outer wall of the disc 121 is provided with a plurality of slots 122, and a through groove is provided on one side of the L-shaped magnet 15. The screw 181 is movably inserted through the through groove and into the slot 122, so as to fix the L-shaped magnet 15 and the disc 121 at the same time.
[0030] Furthermore, both sides of the accounting box 1 are provided with placement slots 17, and the extension plate 13 is movably installed in the placement slots 17 for easy placement of the extension plate 13.
[0031] Working principle: In the initial state of use, the extension plate 13 is stored in the placement slots 17 on both sides of the accounting box 1 and locked by the screws 181 on the fixing block 18. The screws 181 pass through the through slot of the L-shaped magnet 15 and are inserted into the slot 122 of the end disc 121 of the rotating shaft 12, restricting the rotation of the rotating shaft 12. The accounting box 1 contains measuring tools, paper and pen. By setting measuring tools such as tape measure, level, paper and pen in the accounting box 1, engineering data can be measured and then calculated using paper.
[0032] When paper is needed for recording or viewing drawings, first loosen screw 181 to disengage it from slot 122 of disc 121, thereby releasing the fixation on shaft 12. After unlocking, torsion springs 131 connected to both sides of shaft 12 release elastic potential energy, driving shaft 12 to rotate around the two side walls of C-shaped rod 11. This, in turn, causes extension plate 13 fixed to the outer wall of shaft 12 to flip and extend from the placement slot 17 until extension plate 13 is horizontal with accounting box 1 (torsion spring 131 returns to its natural state and stops driving). At this time, extension plate 13 can be used as an auxiliary work surface to expand the accounting operation space.
[0033] After the extension plate 13 is unfolded, the torsion springs 212 connected to both sides of the pivot 211 release elastic potential energy, driving the support plate 21 to flip and extend from the groove 132 until the support plate 21 and the extension plate 13 are perpendicular (the torsion springs 212 return to their natural state and the drive stops). Then, the telescopic plate 22 can be pulled out from the support plate 21. The spring telescopic rods 24 on both sides of the telescopic plate 22 release elastic force, pushing the round-headed column 25 to extend outward and lock into the round groove 214 on one side of the support plate 21. The sliding of the telescopic plate 22 is restricted by the mechanical locking, thus fixing the support height of the support plate 21. At this time, the top of the accounting box 1 and the extension plate 13 together form an operating platform, which is convenient for writing and placing drawings.
[0034] Take out the L-shaped magnet 15 from the top of the accounting box 1. Magnetic material is pre-installed on the top of the accounting box 1 and the extension plate 13, which can quickly generate magnetic attraction with the L-shaped magnet 15. After laying paper materials such as drawings and documents on the operating platform, press them against the edges of the materials with the L-shaped magnet 15. The attraction force fixes the position of the materials and prevents the materials from shifting during the accounting process, which would affect the accuracy of data recording.
[0035] After use, first press the rounded posts 25 on both sides of the telescopic plate 22 to compress the spring telescopic rod 24 and disengage it from the circular groove 214 of the support plate 21, thus releasing the positioning of the telescopic plate 22. Push the telescopic plate 22 back into the sliding groove 217 of the support plate 21. When the rounded post 25 encounters the circular groove 213, it is inserted into the circular groove 213 by the elastic force of the spring telescopic rod 24, thereby fixing the telescopic plate 22 in the support plate 21. Then, manually flip the support plate 21 inward to rotate it around the pivot 211 and fold it back into the extension plate 1. 3. Place the extension plate 13 into the groove 132 at the bottom, then flip the extension plate 13 towards the accounting box 1 and store the extension plate 13 in the placement slot 17. At this time, put the L-shaped magnet 15 into the C-shaped slot 14 at the top of the accounting box 1, aligning its through slot with the screw hole on the fixing block 18. Tighten the screw 181 through the through slot of the L-shaped magnet 15 until the screw 181 is inserted into the slot 122 of the end disc 121 of the rotating shaft 12, thereby locking the rotating shaft 12 and the extension plate 13 to prevent the extension plate 13 from shaking in the stored state, and also to fix the L-shaped magnet 15.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An engineering cost accounting device comprising an accounting box (1), characterized in that: Both sides of the accounting box (1) are fixedly provided with C-shaped rods (11). A rotating shaft (12) is rotatably provided between the two side walls of the C-shaped rod (11). An extension plate (13) is fixedly provided on the outer wall of the rotating shaft (12). A torsion spring (131) is connected between one side of the extension plate (13) and one side of the C-shaped rod (11). A groove (132) is provided at the bottom of the extension plate (13). A rotating shaft (211) is rotatably provided between the two side walls of the groove (132). A support plate (21) is fixedly provided on the outer wall of the rotating shaft (211). A torsion spring (212) is connected between the support plate (21) and the side wall of the groove (132). A telescopic plate (22) is slidably provided at the bottom of the support plate (21).
2. The engineering cost accounting device according to claim 1, characterized in that: The bottom of the support plate (21) is provided with a sliding groove (217), and the telescopic plate (22) is slidably installed in the sliding groove (217).
3. The construction cost accounting device according to claim 1, characterized by: Both sides of the telescopic plate (22) are fixedly provided with spring telescopic rods (24), and the other end of the spring telescopic rods (24) is fixedly provided with round head posts (25). Both sides of the support plate (21) are provided with a first round groove (213) and a second round groove (214).
4. The construction cost accounting device according to claim 1, characterized by: The top of the accounting box (1) is provided with a C-shaped groove (14), and symmetrically distributed L-shaped magnets (15) are movably locked in the C-shaped groove (14).
5. The engineering cost accounting device according to claim 4, characterized in that: One end of the rotating shaft (12) passes through one end of the C-shaped rod (11) and a disc (121) is fixed at its end. A symmetrically distributed fixing block (18) is fixed on one side of the accounting box (1). A screw (181) is threaded into one side of the fixing block (18). The screw (181) passes through the L-shaped magnet (15) and is inserted into the disc (121).
6. The engineering cost calculation device according to claim 5, characterized in that: The outer wall of the disc (121) is provided with a plurality of slots (122), and one side of the L-shaped magnet (15) is provided with a through slot. The screw (181) is movably inserted through the through slot and inserted into the slot (122).
7. The engineering cost calculation device according to claim 1, characterized in that: The accounting box (1) has placement slots (17) on both sides, and the extension plate (13) is movably installed in the placement slots (17).