Drawing comparison device for construction engineering cost

By designing limiting and adjusting components, the problem of magnet loss in existing drawing comparison devices has been solved, achieving stable clamping and flexible adjustment, thus improving the practicality and efficiency of the drawing comparison device.

CN224084935UActive Publication Date: 2026-04-07毛妮娜
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing drawing comparison devices, which use magnetic attraction for positioning, are prone to loss, leading to inconvenience and reduced practicality.

Method used

The device employs limiting and adjusting components, including threaded mounting grooves, threaded rotating rods, clamping plates, limiting sliders, limiting crossbars, extension plates, and magnetic stickers. Through threaded connections and magnetic adsorption, it achieves stable clamping and expands the display area. Combined with the elastic connection and height adjustment of the adjusting components, it enhances the flexibility and practicality of the device.

Benefits of technology

It achieves stable clamping and flexible adjustment of drawings, enhances the practicality and efficiency of the drawing comparison device, avoids the loss of magnetic stickers, and improves the convenience of comparing multiple sheets of paper.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a constructional engineering cost drawing comparison device, relates to constructional engineering cost technical field, including bearing base, display board and spacing subassembly, bearing base bottom is equipped with universal wheel, and bearing base upper end is distributed with display board, the spacing subassembly is provided outside display board, and the spacing subassembly is equipped with the universal wheel. The limiting assembly comprises a mounting frame, threaded mounting grooves, threaded rotating rods, clamping plates, limiting sliding blocks, limiting through holes, limiting cross rods, extending plates and magnet stickers, the threaded mounting grooves are formed in the two sides of the interior of the mounting frame, the threaded rotating rods are connected to the interiors of the threaded mounting grooves, and the clamping plates are connected to the front ends of the threaded rotating rods; and meanwhile, limiting sliding blocks are additionally arranged on the two sides of the upper end of the clamping plate, limiting through holes are formed in the limiting sliding blocks, and limiting transverse rods are connected into the limiting through holes. According to the drawing comparison device for the construction engineering cost, the magnet paste can be prevented from being lost during use, and the overall practicability and the use efficiency of the drawing comparison device are improved.
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Description

Technical Field

[0001] This utility model relates to the field of construction engineering cost technology, specifically a drawing comparison device for construction engineering cost. Background Technology

[0002] Construction project cost refers to all expenses incurred in constructing a project, from planning to completion, acceptance, and handover. It includes construction and installation costs, equipment and tool purchase costs, other construction costs, contingency funds, and taxes. Its core components are investment estimation, design estimates, and revised estimates. Often, analyzing construction drawings is necessary when preparing budget estimates. To improve the efficiency of construction project cost estimation, a drawing comparison device is needed. However, existing drawing comparison devices still have the following shortcomings:

[0003] When existing drawing comparison devices are used, most of them use magnetic attraction to limit the position of the drawings. However, the magnetic stickers are small and easy to lose, which makes it difficult for the drawing comparison devices to meet the needs of different users. This results in a decrease in the practicality and efficiency of the drawing comparison devices. Utility Model Content

[0004] The purpose of this invention is to provide a drawing comparison device for construction engineering cost estimation, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drawing comparison device for construction engineering cost estimates, comprising a receiving base, a display board, and a limiting component. The receiving base has casters installed at its bottom, and a display board is distributed at its upper end. A limiting component is provided on the outside of the display board, and the limiting component includes a mounting frame, threaded mounting grooves, a threaded rotating rod, a clamping plate, limiting sliders, limiting through holes, limiting crossbars, an extension plate, and magnetic stickers. Threaded mounting grooves are provided on both sides inside the mounting frame, and a threaded rotating rod is connected inside each of the threaded mounting grooves. A clamping plate is connected to the front end of the threaded rotating rod. Limiting sliders are added to both sides of the upper end of the clamping plate. Limiting through holes are provided inside each limiting slider, and limiting crossbars are connected inside each limiting through hole. An extension plate is connected inside the display board, and magnetic stickers are provided on the outside of the extension plate. An adjustment component is provided in the middle of the upper end of the receiving base.

[0006] Furthermore, the internal dimensions of the threaded mounting groove are adapted to the external dimensions of the threaded rotating rod, and the threaded rotating rod is rotatably connected to the mounting bracket through the threaded mounting groove.

[0007] Furthermore, the internal dimensions of the limiting through hole are adapted to the external dimensions of the limiting crossbar, and the limiting crossbar is connected to the limiting slider through the limiting through hole.

[0008] Furthermore, the extension plate is embedded in the display plate, and the extension plate is slidably connected to the display plate.

[0009] Furthermore, the adjustment assembly includes a mounting cylinder, a limiting cylinder, a limiting rod, and a return spring. The upper outer end of the mounting cylinder is provided with a limiting cylinder, and the limiting cylinder is connected to a limiting rod. A return spring is provided inside the limiting cylinder outside the limiting rod.

[0010] Furthermore, the adjustment assembly also includes a mounting docking groove, a movable adjustment rod, and a limiting through groove. The mounting cylinder has a mounting docking groove inside, and the movable adjustment rod is connected inside the mounting docking groove. Limiting through grooves are opened on both sides inside the movable adjustment rod.

[0011] Furthermore, the limiting rod and the limiting cylinder are embedded in each other, and the limiting rod is elastically connected to the limiting cylinder through a return spring.

[0012] Furthermore, the internal dimensions of the mounting docking groove are adapted to the external dimensions of the movable adjusting rod, and the movable adjusting rod is embeddedly connected to the mounting cylinder through the mounting docking groove.

[0013] This utility model provides a drawing comparison device for construction engineering cost estimation, which has the following beneficial effects:

[0014] 1. This utility model, through the setting of the limiting component, enables the threaded rotating rod to be rotated and installed into the mounting frame through the threaded mounting groove when using the drawing comparison device for construction cost estimation. The rotation of the threaded rotating rod drives the clamping plate to move horizontally in the use position, and the limiting slider is fixedly installed on both sides of the upper end of the clamping plate. The limiting crossbar increases the stability of the limiting slider during the movement, so that the clamping plate can stably move and clamp and limit the drawing. The extension plate increases the overall usable area of ​​the display board. At the same time, the magnetic material inside the extension plate attracts the magnetic stickers, and the magnetic stickers limit the paper placed outside the extension plate. The extension plate stored inside the display board is less likely to lose the magnetic stickers, and the extended area can facilitate the comparison of multiple sheets of paper, increasing the overall practicality and efficiency of the drawing matching device.

[0015] 2. By adjusting the components, this utility model enables the limit rod and the limit cylinder to be elastically connected by a return spring when the drawing comparison device for construction cost is used. The movable adjustment rod is installed into the installation cylinder using the installation docking groove, and the movable adjustment rod is limited and installed inside the installation cylinder by the limit through groove in conjunction with the limit rod. This allows for quick installation and limiting of the display board at the upper end of the installation cylinder. At the same time, the height of the display board can be adjusted by the multiple limit through grooves opened inside the movable adjustment rod, improving the flexibility and dynamism of the drawing comparison device during use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a drawing comparison device for construction engineering cost estimation according to the present invention;

[0017] Figure 2 This is a three-dimensional sectional view of the unfolded structure of the limiting component of the drawing comparison device for construction engineering cost estimation according to this utility model;

[0018] Figure 3 This is a three-dimensional sectional view of the unfolded structure of the adjustment component of a drawing comparison device for construction engineering cost estimation according to this utility model.

[0019] In the diagram: 1. Support base; 2. Casters; 3. Display panel; 4. Limiting component; 401. Mounting bracket; 402. Threaded mounting groove; 403. Threaded rotating rod; 404. Clamping plate; 405. Limiting slider; 406. Limiting through hole; 407. Limiting crossbar; 408. Extension plate; 409. Magnetic sticker; 5. Adjusting component; 501. Mounting cylinder; 502. Limiting cylinder; 503. Limiting rod; 504. Return spring; 505. Mounting docking groove; 506. Movable adjusting rod; 507. Limiting through groove. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] like Figure 1 and Figure 2As shown, a drawing comparison device for construction cost estimates includes a base 1, a display panel 3, and a limiting component 4. The base 1 has casters 2 mounted on its bottom, and a display panel 3 is distributed on its upper end. The limiting component 4 is provided on the exterior of the display panel 3. The limiting component 4 includes a mounting frame 401, threaded mounting grooves 402, a threaded rotating rod 403, a clamping plate 404, a limiting slider 405, a limiting through hole 406, a limiting crossbar 407, an extension plate 408, and a magnet 409. Threaded mounting grooves 402 are provided on both sides inside the mounting frame 401, and a threaded rotating rod 403 is connected inside the threaded mounting grooves 402. The clamping plate 404 is connected to the front end of the threaded rotating rod 403. The upper end of the clamping plate 404... Limiting sliders 405 are added on both sides, with limiting through holes 406 inside each slider. A limiting crossbar 407 is connected inside the limiting through holes 406. An extension plate 408 is connected inside the display panel 3, and a magnet 409 is provided on the outside of the extension plate 408. The internal dimensions of the threaded mounting groove 402 are adapted to the external dimensions of the threaded rotating rod 403, and the threaded rotating rod 403 is rotatably connected to the mounting bracket 401 through the threaded mounting groove 402. The internal dimensions of the limiting through holes 406 are adapted to the external dimensions of the limiting crossbar 407, and the limiting crossbar 407 is connected to the limiting sliders 405 through the limiting through holes 406. The extension plate 408 is embedded in the display panel 3 and slidably connected to it. The mounting bracket 401 is fixedly installed on the upper part of the display board 3 by fastening bolts. The internal dimensions of the threaded mounting groove 402 inside the mounting bracket 401 are adapted to the external dimensions of the threaded rotating rod 403, so that the threaded rotating rod 403 is rotatably installed into the mounting bracket 401 through the threaded mounting groove 402. The clamping plate 404 is installed at the front end of the threaded rotating rod 403 through the movable shaft, so that the rotation of the threaded rotating rod 403 drives the clamping plate 404 to move horizontally to the use position. The limiting slider 405 is fixedly installed on both sides of the upper end of the clamping plate 404. The internal dimensions of the limiting through hole 406 inside the limiting slider 405 are adapted to the external dimensions of the limiting crossbar 407, so that the limiting through hole 406 controls the limiting crossbar 407. The horizontal bar 407 is installed inside the limiting slider 405, thereby increasing the stability of the limiting slider 405 during movement. This allows the clamping plate 404 to move stably and clamp and limit the drawing. The extension plate 408 is slidably installed inside the display plate 3, increasing the overall usable area of ​​the display plate 3. At the same time, the extension plate 408 is magnetically attracted to the magnet 409, which limits the paper placed outside the extension plate 408. The extension plate 408 stored inside the display plate 3 is less likely to lose the magnet 409, and the extended area facilitates the comparison of multiple sheets of paper, increasing the overall practicality and efficiency of the drawing docking device.

[0022] like Figure 1 and Figure 3As shown, an adjustment assembly 5 is provided at the upper middle part of the base 1. The adjustment assembly 5 includes a mounting cylinder 501, a limiting cylinder 502, a limiting rod 503, and a return spring 504. The upper outer end of the mounting cylinder 501 is provided with a limiting cylinder 502, and the limiting rod 503 is connected inside the limiting cylinder 502. The return spring 504 is provided inside the limiting cylinder 502 outside the limiting rod 503. The adjustment assembly 5 also includes a mounting docking groove 505, a movable adjustment rod 506, and a limiting through groove 507. The mounting cylinder 501 has an internal opening. The system includes an installation docking groove 505, inside which a movable adjusting rod 506 is connected. Limiting grooves 507 are formed on both sides of the movable adjusting rod 506. A limiting rod 503 is embedded in a limiting cylinder 502, and the limiting rod 503 is elastically connected to the limiting cylinder 502 via a return spring 504. The internal dimensions of the installation docking groove 505 are adapted to the external dimensions of the movable adjusting rod 506, and the movable adjusting rod 506 is embedded in the installation cylinder 501 via the installation docking groove 505. Next, the limiting cylinder 502 is fixedly installed on both sides of the upper end of the mounting cylinder 501 by fastening bolts. The limiting rod 503 is installed into the limiting cylinder 502, and the limiting rod 503 is elastically connected to the limiting cylinder 502 with the help of the return spring 504. The internal dimensions of the mounting docking groove 505 opened inside the mounting cylinder 501 are adapted to the external dimensions of the movable adjusting rod 506 added to the lower end of the display plate 3. Thus, the movable adjusting rod 506 is installed into the mounting cylinder 501 through the mounting docking groove 505. The internal dimensions of the limiting slot 507 inside the movable adjusting rod 506 are adapted to the external dimensions of the limiting rod 503. Thus, the movable adjusting rod 506 is limited and installed inside the mounting cylinder 501 through the limiting slot 507 and the limiting rod 503, thereby quickly completing the installation and limiting of the display board 3 at the upper end of the mounting cylinder 501. At the same time, the height of the display board 3 can be adjusted through the multiple limiting slots 507 inside the movable adjusting rod 506, improving the flexibility and dynamism of the drawing comparison device during use.

[0023] In summary, this construction cost drawing comparison device, during use, firstly, utilizes the casters 2 mounted on the bottom of the base 1 to increase the ease of movement during equipment movement. The threaded rotating rod 403 is rotatably installed into the mounting frame 401 via the threaded mounting groove 402, and the clamping plate 404 is installed at the front end of the threaded rotating rod 403 via the movable shaft. This allows the rotation of the threaded rotating rod 403 to drive the clamping plate 404 to move horizontally to its intended position. The limiting slider 405 is fixedly installed on both sides of the upper end of the clamping plate 404. The limiting crossbar 407 is installed into the limiting slider 405 through the limiting through hole 406, thereby increasing the stability of the limiting slider 405 during movement. This ensures the clamping plate 404 can stably displace and clamp and limit the drawing. Finally, the extension plate 408 is slidably installed into the display plate 3, increasing the overall usable area of ​​the display plate 3. Meanwhile, the extension plate 408 is magnetically attracted to the magnet 409 inside by a magnet. The magnet 409 limits the paper placed on the outside of the extension plate 408. At the same time, the extension plate 408 stored inside the display plate 3 is less likely to lose the magnet 409, and the extended area can facilitate the comparison of multiple sheets of paper. Then, the return spring 504 makes the limiting rod 503 elastically connected to the limiting cylinder 502. The movable adjusting rod 506 is installed into the installation cylinder 501 by the installation docking groove 505. The movable adjusting rod 506 is limited and installed inside the installation cylinder 501 by the limiting through groove 507 in conjunction with the limiting rod 503. Thus, the installation and limiting of the display plate 3 at the upper end of the installation cylinder 501 is quickly completed. At the same time, the height of the display plate 3 can be adjusted by the multiple limiting through grooves 507 opened inside the movable adjusting rod 506, which improves the flexibility and dynamism of the drawing comparison device during use.

[0024] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A drawing comparison device for construction project cost estimation, comprising a receiving base (1), a display board (3), and a limiting component (4), characterized in that, The bottom of the receiving base (1) is equipped with casters (2), and the upper end of the receiving base (1) is provided with display panels (3). The display panels (3) are provided with limiting components (4) on the outside. The limiting components (4) include a mounting bracket (401), a threaded mounting groove (402), a threaded rotating rod (403), a clamping plate (404), a limiting slider (405), a limiting through hole (406), a limiting crossbar (407), an extension plate (408), and a magnet (409). The mounting bracket (401) has threaded mounting grooves (402) on both sides inside, and the threaded mounting... The groove (402) is connected to a threaded rotating rod (403), and the front end of the threaded rotating rod (403) is connected to a clamping plate (404). At the same time, the clamping plate (404) is provided with limit sliders (405) on both sides of the upper end. The limit sliders (405) have limit through holes (406) inside, and the limit through holes (406) are connected to limit crossbars (407). The display plate (3) is connected to an extension plate (408), and the extension plate (408) is provided with magnets (409) on the outside. The receiving base (1) is provided with an adjustment component (5) at the middle of the upper end.

2. The drawing comparison device for construction project cost estimation according to claim 1, characterized in that, The internal dimensions of the threaded mounting groove (402) are adapted to the external dimensions of the threaded rotating rod (403), and the threaded rotating rod (403) is rotatably connected to the mounting bracket (401) through the threaded mounting groove (402).

3. The drawing comparison device for construction project cost estimation according to claim 1, characterized in that, The internal dimensions of the limiting through hole (406) are adapted to the external dimensions of the limiting crossbar (407), and the limiting crossbar (407) is connected to the limiting slider (405) through the limiting through hole (406).

4. The drawing comparison device for construction project cost estimation according to claim 1, characterized in that, The extension plate (408) is embedded in the display plate (3), and the extension plate (408) is slidably connected to the display plate (3).

5. The drawing comparison device for construction project cost estimation according to claim 1, characterized in that, The adjustment component (5) includes a mounting cylinder (501), a limiting cylinder (502), a limiting rod (503), and a return spring (504). The upper part of the mounting cylinder (501) is provided with a limiting cylinder (502), and the limiting cylinder (502) is connected to the limiting rod (503). The limiting rod (503) is provided inside the limiting cylinder (502) outside the limiting cylinder (503), and the return spring (504) is provided inside the limiting cylinder (502) outside the limiting rod (503).

6. The drawing comparison device for construction project cost estimation according to claim 5, characterized in that, The adjustment component (5) further includes an installation docking groove (505), a movable adjustment rod (506), and a limiting through groove (507). The installation cylinder (501) has an installation docking groove (505) inside, and the movable adjustment rod (506) is connected inside the installation docking groove (505). The movable adjustment rod (506) has limiting through grooves (507) on both sides inside.

7. A drawing comparison device for construction project cost estimation according to claim 6, characterized in that, The limiting rod (503) is embedded in the limiting cylinder (502), and the limiting rod (503) is elastically connected to the limiting cylinder (502) through a return spring (504).

8. The drawing comparison device for construction project cost estimation according to claim 6, characterized in that, The internal dimensions of the mounting docking groove (505) are adapted to the external dimensions of the movable adjusting rod (506), and the movable adjusting rod (506) is embeddedly connected to the mounting cylinder (501) through the mounting docking groove (505).