Auxiliary inspection tool for engineering cost

By designing an auxiliary inspection tool for engineering cost estimation that includes a fixing plate and a pressing component, and utilizing the elastic structure of the pull rod and connecting tube, the problem of stable fixing of paper at outdoor construction sites was solved, thereby improving reading and work efficiency.

CN224117007UActive Publication Date: 2026-04-14ZHONGTIANHAO CONSTR MANAGEMENT GRP CO LTD
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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
2026-04-14

AI Technical Summary

Technical Problem

In existing technologies, paper is difficult to fix stably at outdoor construction sites, especially under wind conditions, it is easily blown up or flipped, affecting the reading efficiency of project cost estimators.

Method used

An auxiliary inspection tool for engineering cost estimation is adopted, including a fixing plate and a pressing component. Through the cooperation of the pull rod and the connecting tube, the elasticity of the spring is used to achieve stable pressing and clamping of paper, which can adapt to paper of different thicknesses and sizes.

Benefits of technology

It effectively avoids reading interference caused by paper being blown or curled by the wind, and improves the reading efficiency and work efficiency of engineering cost staff.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of construction cost, and discloses an auxiliary inspection tool for construction cost, which comprises a fixed plate 1, two ends of the fixed plate 1 are fixedly connected with a fixed plate 3, the bottom of the fixed plate 1 is provided with a moving assembly, the fixed plate 3 is provided with a sliding groove, the fixed plate 3 is provided with a fixed groove, and the fixed groove is provided with a sliding block. The outer wall of the third fixing plate is fixedly connected with a supporting frame, the third fixing plate is provided with a pressing assembly, the pressing assembly comprises a pull rod, the outer wall of the pull rod is fixedly connected with a first connecting block, the other end of the first connecting block is fixedly connected with a first pressing rod, and the outer wall of the pull rod is fixedly connected with a clamping block. According to the paper pressing device, when paper is pressed, the pull rod is pulled to drive the first pressing rod, then vertical adjustment is conducted through the first bearing, the first pull rod and the first spring are loosened at the proper position to reset the connecting pipe, and therefore the purpose of pressing the paper is achieved, the problem that reading is affected by unevenness or curling of the paper is effectively solved, and working efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of engineering cost technology, and in particular to an auxiliary inspection tool for engineering cost. Background Technology

[0002] In the field of construction cost estimation, daily work involves reviewing and verifying a large amount of documents and data. Whether performing data calculations in the office or checking various project details against the checklist on the construction site, an efficient and practical auxiliary inspection tool is essential. The complexity and rigor of construction cost estimation work require staff to be able to view various checklists and accurately check drawings and other documents at any time. Especially on outdoor construction sites, where environmental conditions are complex and changeable, auxiliary inspection tools play a crucial role.

[0003] Currently, the methods for securing and viewing paper in engineering cost estimation auxiliary inspections are relatively traditional. Indoors, paper is typically fixed to an information board with magnets; when the paper needs to be moved, the magnets are removed and the paper taken down. Outdoors, some staff use simple securing methods, such as weighing down the corners of the paper with stones or other heavy objects. If paper needs to be suspended for inspection, it is often simply pinned to a temporary wooden board or wall with thumbtacks. These traditional methods are based on relatively basic technology, mainly relying on external force or physical connections to secure the paper.

[0004] However, magnets alone cannot stably secure thicker or larger sheets of paper on indoor information boards. Existing paper-fixing methods have significant problems at outdoor construction sites. Due to the frequent influence of wind in outdoor environments, ordinary fixing methods are ineffective. Even with heavy objects to hold down the edges of the paper, it is still easily blown, flipped, or even blown off in strong winds. Furthermore, engineering documents inevitably become uneven during long-term use and transport, such as wrinkles or curls. When paper is uneven and blown by the wind, it severely interferes with the reading of information. Frequent paper adjustments are not only time-consuming and energy-intensive but also significantly impact work efficiency, failing to meet the needs of efficient and accurate document review in engineering cost estimation. Therefore, an auxiliary inspection tool for engineering cost estimation is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an auxiliary inspection tool for engineering cost estimation, which aims to improve the problem of stable fixing of paper of different thicknesses and sizes in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An auxiliary inspection tool for engineering cost includes a first fixed plate, with a third fixed plate fixedly connected to both ends of the first fixed plate. A movable component is provided at the bottom of the first fixed plate. The third fixed plate has a sliding groove and a fixed groove. A support frame is fixedly connected to the outer wall of the third fixed plate. A pressing component is provided on the third fixed plate.

[0008] The pressing assembly includes a pull rod, a connecting block is fixedly connected to the outer wall of the pull rod, a pressing rod is fixedly connected to the other end of the connecting block, a locking block is fixedly connected to the outer wall of the pull rod, the locking block is slidably connected to the outer wall of the fixing groove, a connecting tube is fixedly connected to the outer wall of the pull rod, a spring is provided inside the connecting tube, an L-shaped frame is slidably connected inside the connecting tube, one end of the spring is fixedly connected to the outer wall of the pull rod, the other end of the spring is fixedly connected to one end of the L-shaped frame, and a sliding assembly is provided at the other end of the L-shaped frame;

[0009] As a further description of the above technical solution:

[0010] The sliding assembly includes a second fixed plate, with bearings fixedly connected to each of the four corners of the second fixed plate. Each bearing is slidably connected to the inner wall of the sliding groove. Each bearing is fixedly connected to a connecting rod, and the outer wall of each connecting rod is fixedly connected to the inner wall of the second fixed plate.

[0011] As a further description of the above technical solution:

[0012] The moving component includes a slide rail, the outer wall of which has a slot, and the slide rail is slidably connected to a rectangular array of bearings.

[0013] As a further description of the above technical solution:

[0014] Each of the bearings has a connecting rod 2 fixedly connected to its inner wall, and a fixing frame 2 fixedly connected to the other end of each connecting rod 2. A connecting block 2 is fixedly connected to the bottom of the fixing frame 2, and a baffle is fixedly connected to the bottom of one side of the connecting block 2.

[0015] As a further description of the above technical solution:

[0016] An L-shaped baffle is fixedly connected to the outer wall of the fixed frame two on one side, and a T-shaped tie rod is slidably connected to the inner wall of the fixed frame two on the other side. A stop rod is fixedly connected to the inner wall of the T-shaped tie rod, and the outer wall of the stop rod is slidably connected to the outer wall of the L-shaped baffle. A spring three is sleeved on the outer wall of the T-shaped tie rod, and both ends of the spring three are fixedly connected to the outer wall of the T-shaped tie rod.

[0017] As a further description of the above technical solution:

[0018] A fixing block is fixedly connected to the top of the outer wall of the baffle, and a connecting rod three is provided inside the fixing block;

[0019] As a further description of the above technical solution:

[0020] A second spring is sleeved on the outer wall of the connecting rod three. One end of the second spring is fixedly connected to the outer wall of the connecting rod three, and the other end of the second spring is fixedly connected to the inner wall of the fixing block.

[0021] As a further description of the above technical solution:

[0022] Both ends of the outer wall of the connecting rod three are fixedly connected to the connecting rod four, and both ends of the outer wall of the connecting rod four are fixedly connected to the pressing rod two.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, pulling the lever drives the locking block and the connecting tube, and then the connecting tube drives the internal spring to stretch. Then, by moving it up or down, the bearing is moved to release the lever at the appropriate position, and the spring inside the connecting tube returns to its original position. Subsequently, the locking block is inserted into the fixing groove, thereby achieving the effect of pressing and fixing the paper during outdoor reading, avoiding the paper being blown by the wind or the paper being curled and wrinkled, thus improving the reading efficiency of engineering cost workers.

[0025] 2. In this utility model, firstly, by pulling the second pressing rod, the fourth pressing rod drives the fourth connecting rod, which in turn drives the third connecting rod. Then, the second spring inside the third connecting rod is twisted. After the paper is placed in, the second pressing rod is released, and the second spring resets, causing the second pressing rod to press the paper. When it is necessary to move the paper left or right for inspection, simply pull the T-shaped lever and rotate it. The T-shaped lever will allow the stop bar to be locked in the L-shaped baffle. After moving the paper to the appropriate position, rotate the T-shaped lever again and release it. The third spring inside the lever will reset the T-shaped lever and lock it into the slot to complete the fixation. This achieves the effect of clamping and fixing the paper and easily moving the paper left or right. It solves the problem of not being able to stably fix paper of different thicknesses and sizes, and also solves the problem of frequently removing and changing the position of the paper when writing on the information board, thereby improving the work efficiency of engineering cost personnel. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an auxiliary inspection tool for engineering cost proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the pressing component of an auxiliary inspection tool for engineering cost proposed in this utility model;

[0028] Figure 3This is a schematic diagram of the structure of a movable component of an auxiliary inspection tool for engineering cost proposed in this utility model;

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0030] Legend:

[0031] 1. Pull rod; 2. Fixing plate one; 3. Slide rail; 4. Support frame; 5. Bearing one; 6. Connecting rod one; 7. Fixing plate two; 8. L-shaped frame; 9. Spring one; 10. Connecting pipe; 11. Fixing plate three; 12. Locking block; 13. Connecting block one; 14. Pressing rod one; 15. Bearing two; 16. Connecting rod two; 17. Fixing frame two; 18. Connecting block two; 19. Fixing block; 20. Connecting rod three; 21. Spring two; 22. Connecting rod four; 23. Pressing rod two; 24. Baffle; 25. T-shaped pull rod; 26. Stop bar; 27. Spring three; 28. L-shaped baffle; 29. ​​Locking groove; 30. Sliding groove; 31. Fixing groove. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1 and Figure 2 In one embodiment of this utility model: the fixing plate 2 is made of stainless steel, which has good hardness and corrosion resistance. Fixing plates 31 are fixedly connected to both ends of the fixing plate 2. The fixing plates 3 are also made of stainless steel. A movable component is provided at the bottom of the fixing plate 2. The component is made of aluminum alloy and the surface is covered with a rubber pad with anti-slip texture to increase the friction between the fixing plate and the paper. The fixing plate 31 has a sliding groove 30 and a fixing groove 31. The fixing groove 31 is circular. A support frame 4 is fixedly connected to the outer wall of the fixing plate 31. The fixing plate 31 is provided with a pressing component.

[0034] The pressing assembly includes a pull rod 1. Two connecting blocks 13 are fixedly connected to the outer wall of the pull rod 1, located on the left and right sides of the pull rod 1. A pressing rod 14 is fixedly connected to the other end of the connecting blocks 13. The pressing rod 14 is made of aluminum alloy and has a soft silicone pad on its outer surface to increase friction when pressing the paper. A locking block 12 is fixedly connected to the outer wall of the pull rod 1. The locking block 12 is cuboid and located on one side of the connecting blocks 13. It is made of aluminum alloy and is slidably connected to the outer wall of the fixing groove 31 to achieve a locking function. The outer wall of the pull rod 1 is fixed. A connecting pipe 10 is connected to the side of the clamping block 9. The connecting pipe 10 is made of aluminum alloy and has a spring 9 inside. The spring 9 is a cylindrical helical spring made of high carbon steel, which has good elasticity and fatigue resistance. An L-shaped frame 8 is slidably connected inside the connecting pipe 10. The L-shaped frame 8 is made of stainless steel and has high strength and stability. One end of the spring 9 is fixedly connected to the outer wall of the pull rod 1 by welding, and the other end of the spring 9 is fixedly connected to one end of the L-shaped frame 8 by welding. A sliding component is provided at the other end of the L-shaped frame 8.

[0035] Reference Figure 1 and Figure 3The sliding assembly includes a fixed plate 7, made of aluminum alloy, which offers good strength and stability while being lightweight, facilitating flexible operation of the entire assembly. Bearings 5 ​​are fixedly connected to each of the four corners of the fixed plate 7. These bearings have a low coefficient of friction, resulting in a long service life and reducing the need for frequent replacements. The bearings 5 ​​are slidably connected to the inner wall of the sliding groove 30. Connecting rods 6, made of stainless steel, are fixedly connected inside each bearing 5, providing high strength. The outer walls of the connecting rods 6 are welded and fixedly connected to the inner wall of the fixed plate 7, ensuring a secure and stable connection. The moving assembly includes a slide rail 3, with a slot 29 on its outer wall. The upper end of the slot 29 is inclined. Rail 3 is slidably connected to a rectangular array of bearings 15. Each bearing 15 has a connecting rod 16 fixedly connected to its inner wall. The connecting rods 16 are made of aluminum alloy round bars, ensuring overall strength while reducing overall weight. Each connecting rod 16 has a fixed bracket 17 fixedly connected to its other end. The bottom of the fixed bracket 17 has a connecting block 18 fixedly connected to it. The connecting block 18 is also made of stainless steel, ensuring its hardness and stability. A baffle 24 is fixedly connected to one side of the bottom of the connecting block 18. The baffle 24 is made of stainless steel and covered with a rubber pad with an anti-slip texture to prevent the paper from slipping during clamping. An L-shaped baffle 28 is fixedly connected to the outer wall of one side of the fixed bracket 17. A T-shaped tie rod 25 is slidably connected to the inner wall of the fixed bracket 17 on one side. The T-shaped tie rod 25 is made of solid carbon steel and has good rust resistance and wear resistance. A stop rod 26 is fixedly connected to the inner wall of the T-shaped tie rod 25. The outer wall of the stop rod 26 is slidably connected to the outer wall of the L-shaped baffle 28. By rotating the T-shaped tie rod 25, the stop rod 26 can be locked onto the L-shaped baffle 28 to achieve position locking. A spring 27 is sleeved on the outer wall of the T-shaped tie rod 25. The spring 27 is a cylindrical helical spring made of high carbon steel and has good elasticity and fatigue resistance. Both ends of the spring 27 are fixedly connected to the outer wall of the T-shaped tie rod 25. When the external force is removed, the spring 27 can push the T-shaped tie rod 25 to reset. A fixing block 19 is fixedly connected to the top of the outer wall of the baffle 24. The fixing block 19 is made of aluminum alloy. A connecting rod 20 is set inside the fixing block 19. A spring 21 is sleeved on the outer wall of the connecting rod 20. The spring 21 is also a cylindrical helical spring. One end of the spring 21 is fixedly connected to the outer wall of the connecting rod 20, and the other end of the spring 21 is fixedly connected to the inner wall of the fixing block 19. A connecting rod 22 is fixedly connected to both ends of the outer wall of the connecting rod 20. A pressing rod 23 is fixedly connected to the outer wall of the connecting rod 22 at both ends. The pressing rod 23 is made of aluminum alloy. This material is lightweight and has high strength. A soft silicone pad is sleeved on the surface to prevent damage and detachment of the paper when pressing it.

[0036] Working principle: When pressing the suspended paper outdoors, first pull the lever 1, which drives the connecting block 13, which in turn drives the pressing lever 1. Then, the lever 1 drives the locking block 12, which in turn drives the connecting tube 10, which in turn drives the internal spring 9. Releasing the lever 1 and spring 9 resets the lever 1. Pulling the lever 1 up or down moves the L-shaped frame 8 up and down, which in turn moves the fixing plate 7 of the L-shaped frame 8. The fixing plate 7 then drives the connecting rod 6, which in turn drives the bearing to rotate. When the paper moves to the appropriate position, the lever 1 is released, and the locking block 12 engages with the fixing groove 31 of the fixing plate 11 to complete the pressing of the paper.

[0037] When paper needs to be suspended, first pull the pressing lever 23, then press the lever 23 to drive the connecting lever 22, which in turn drives the connecting lever 20. The lever is then reset by the spring 21. When paper needs to be moved, first pull the T-shaped lever 25, then rotate the T-shaped lever 25 to drive the stop lever 26 into the L-shaped baffle 28. Then, move the outer fixing bracket 217 to drive the connecting lever 26 to move. The connecting lever 216 then drives the bearing 15 to move within the slide rail 3. When the paper is in the correct position, rotate the T-shaped lever 25 to move the stop lever 26 out of the L-shaped baffle 28. The spring 327 resets the T-shaped lever 25, and the T-shaped lever 25 is then locked into the slot 29 for fixation. When more paper needs to be fixed, simply adjust the position to allow two or more pieces to be fixed simultaneously, overcoming the limitations of existing information boards in fixing paper.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary inspection tool for engineering cost, comprising a fixing plate (2), characterized in that: Fixed plate three (11) is fixedly connected to both ends of fixed plate one (2). A moving component is provided at the bottom of fixed plate one (2). Fixed plate three (11) has a sliding groove (30) and a fixing groove (31). A support frame (4) is fixedly connected to the outer wall of fixed plate three (11). A pressing component is provided on fixed plate three (11). The pressing assembly includes a pull rod (1), a connecting block (13) is fixedly connected to the outer wall of the pull rod (1), a pressing rod (14) is fixedly connected to the other end of the connecting block (13), a locking block (12) is fixedly connected to the outer wall of the pull rod (1), the locking block (12) is slidably connected to the outer wall of the fixing groove (31), a connecting tube (10) is fixedly connected to the outer wall of the pull rod (1), a spring (9) is provided inside the connecting tube (10), an L-shaped frame (8) is slidably connected inside the connecting tube (10), one end of the spring (9) is fixedly connected to the outer wall of the pull rod (1), the other end of the spring (9) is fixedly connected to one end of the L-shaped frame (8), and a sliding assembly is provided at the other end of the L-shaped frame (8).

2. The auxiliary inspection tool for engineering cost estimation according to claim 1, characterized in that: The sliding assembly includes a second fixed plate (7), and bearings (5) are fixedly connected to the four corners of the second fixed plate (7). The bearings (5) are slidably connected to the inner wall of the sliding groove (30). Connecting rods (6) are fixedly connected inside the bearings (5). The outer walls of the connecting rods (6) are fixedly connected to the inner wall of the second fixed plate (7).

3. The auxiliary inspection tool for engineering cost estimation according to claim 1, characterized in that: The moving component includes a slide rail (3), the outer wall of which is provided with a slot (29), and the slide rail (3) is slidably connected to a rectangular array of bearings (15).

4. The auxiliary inspection tool for engineering cost estimation according to claim 3, characterized in that: The inner wall of each bearing (15) is fixedly connected to a connecting rod (16), and the other end of each connecting rod (16) is fixedly connected to a fixing frame (17). The bottom of the fixing frame (17) is fixedly connected to a connecting block (18), and the bottom of one side of the connecting block (18) is fixedly connected to a baffle (24).

5. The auxiliary inspection tool for engineering cost estimation according to claim 4, characterized in that: An L-shaped baffle (28) is fixedly connected to the outer wall of the second fixing frame (17) on one side, and a T-shaped pull rod (25) is slidably connected to the inner wall of the second fixing frame (17) on one side. A stop rod (26) is fixedly connected to the inner wall of the T-shaped pull rod (25), and the outer wall of the stop rod (26) is slidably connected to the outer wall of the L-shaped baffle (28). A spring three (27) is sleeved on the outer wall of the T-shaped pull rod (25), and both ends of the spring three (27) are fixedly connected to the outer wall of the T-shaped pull rod (25).

6. The auxiliary inspection tool for engineering cost estimation according to claim 5, characterized in that: A fixing block (19) is fixedly connected to the top of the outer wall of the baffle (24), and a connecting rod (20) is provided inside the fixing block (19).

7. The auxiliary inspection tool for engineering cost estimation according to claim 6, characterized in that: A spring 2 (21) is sleeved on the outer wall of the connecting rod 3 (20). One end of the spring 2 (21) is fixedly connected to the outer wall of the connecting rod 3 (20), and the other end of the spring 2 (21) is fixedly connected to the inner wall of the fixing block (19).

8. The auxiliary inspection tool for engineering cost estimation according to claim 7, characterized in that: Both ends of the outer wall of the connecting rod three (20) are fixedly connected to the connecting rod four (22), and the outer walls of the connecting rod four (22) at both ends are fixedly connected to the pressing rod two (23).