Portable auxiliary calculation device for engineering cost

Abstract

The utility model discloses a portable auxiliary calculation device for engineering cost, and belongs to the technical field of cost calculation. The movable box is rotationally connected with the fixed box, and the fixed box and the movable box form a space for storing engineering cost calculation materials; two sliding grooves are formed in the side face of the fixed box, sliding blocks in sliding connection with the sliding grooves are connected to the two side faces of the auxiliary plate, and a handle convenient to carry and a plurality of rolling wheels convenient to move are connected to the two sides of the auxiliary plate correspondingly; the two sides of the auxiliary plate are rotationally connected with supporting plates through damping rotating shafts, the two sides of the auxiliary plate are further connected with trapezoidal blocks used for limiting the rotated supporting plates, storage channels are formed in the side faces of the fixed box and the movable box, and adjusting plates are arranged in the storage channels. The side face of the adjusting plate is connected with a paper clip used for fixing a paper material for engineering cost calculation. The portable auxiliary calculation device for the construction cost has a better display effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of cost calculation, in particular to a portable auxiliary calculation device for engineering cost. Background Art

[0002] The calculation board for construction project cost is an auxiliary tool for writing and used for reasoning and calculating construction project cost. Its main function is to place calculation paper on it, so that the calculator can use a pen to record. When calculating the construction project cost, the calculator needs to use a calculation board, a pen, calculation paper and other auxiliary tools or instruments for calculation, so the calculation device needs to have a storage function. However, the display effect of the calculation device is weak during demonstration.

[0003] After searching, a Chinese patent document (authorization announcement number CN215455985U) discloses a portable cost calculation board for construction project costs, comprising a calculation board body and a retractable device. The arc surface of the calculation board body is provided with a retractable device, and the retractable device comprises a retractable box. The surface of the retractable box is rotatably connected to the calculation board body. Two limit plates are fixedly connected to the surface of the retractable box. A number of limit teeth are evenly provided on the surfaces of the two limit plates. The surfaces of the limit plates are slidably connected to limit blocks. The arc surface of the limit blocks is rotatably connected to an adjustment rod. The arc surface of the adjustment rod is slidably connected to an insertion rod. When calculating the cost of a construction project, the person performing the calculation needs to use a calculation board, a pen, calculation paper, and other auxiliary tools or instruments for calculation. Therefore, the calculation device needs to have a storage function. However, the display effect of the calculation device is relatively weak during demonstration. Utility Model Content

[0004] The purpose of the utility model is to provide a portable auxiliary calculation device for engineering cost to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a portable auxiliary calculation device for engineering cost, comprising:

[0006] Fixed box;

[0007] The movable box is rotatably connected to the fixed box, and the fixed box and the movable box form a space for storing materials for engineering cost calculation;

[0008] The U-shaped auxiliary plate has two slide grooves on the side of the fixed box, and the two sides of the auxiliary plate are connected to sliders that are slidably connected to the slide grooves. The two sides of the auxiliary plate are respectively connected to a handle for easy carrying and a plurality of rollers for easy movement;

[0009] Both sides of the auxiliary plate are rotatably connected to the support plate through the damping shaft, and both sides of the auxiliary plate are also connected to trapezoidal blocks for limiting the rotation of the support plate.

[0010] As a preferred embodiment, the sides of the fixed box and the movable box are both provided with storage channels, an adjustment plate is provided in the storage channels, and the sides of the adjustment plate are connected with paper clips for fixing paper materials for engineering cost calculations.

[0011] As a preferred embodiment, a threaded channel communicating with the storage channel is opened on the side of the movable box, and a fixed threaded rod for fixing the adjustment plate is threadedly connected to the threaded channel.

[0012] As a preferred embodiment, the fixed box and the movable box are connected and fixed by a first lock. After the movable box is unfolded, a second lock is installed on the side of the fixed box for fixing the movable box.

[0013] As a preferred embodiment, the sliding groove of the fixed box is provided with a threaded hole, the threaded hole is threadedly connected to an auxiliary threaded rod, and the side of the auxiliary plate is provided with a circular hole for the auxiliary threaded rod to pass through. When the auxiliary threaded rod passes through the circular hole, it is in a retracted state, and when the auxiliary threaded rod is against the fixed block, it is in an expanded state.

[0014] As a preferred embodiment, the sides of the four support plates are connected with pull ropes. When the support plates are in the flip support state, two adjacent pull ropes are tied and fixed to maintain the stability of the two support plates.

[0015] As a preferred embodiment, both the fixed box and the movable box are detachably connected with a storage box for storing auxiliary items for construction cost.

[0016] Compared with the prior art, the technical effects and advantages of this utility model are:

[0017] Before using the portable auxiliary calculation device for engineering cost, take out the contents of the movable box and the fixed box, unfold them completely, and adjust the positions of the auxiliary plate and the support plate. The unfolded support has a better display effect than the traditional cover-lifting display.

[0018] This portable auxiliary calculation device for construction cost can increase the display area by adjusting the position of the adjustment plate. Paper materials for construction cost calculation can be fixed and displayed using paper clips. Compared with the traditional display device with the cover opened, the display area is increased by nearly three times.

[0019] This portable auxiliary calculation device for engineering cost can better display the effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention after removing the auxiliary plate and the auxiliary structure;

[0023] Figure 3 This is a schematic diagram of the structure of the present invention in the display state;

[0024] Figure 4 For the utility model Figure 1 A magnified view of the structure at center A;

[0025] Figure 5 It is a structural schematic diagram of the rear view state of the fixed box and the movable box of the present invention after being displayed.

[0026] Description of reference numerals:

[0027] In the picture:

[0028] 1. Fixed box; 2. Movable box; 3. Auxiliary plate; 4. Slider; 5. Handle; 6. Roller; 7. Support plate; 8. Trapezoidal block; 9. Adjustment plate; 10. Paper clip; 11. Fixed threaded rod; 12. Auxiliary threaded rod; 13. Drawstring; 14. Storage box. DETAILED DESCRIPTION

[0029] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0030] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside shown in the figures of the present invention, and are explained here together.

[0031] The connection method can be bonding, welding, bolt connection, etc., which shall be based on actual needs.

[0032] See also Figures 1 to 5As shown, a portable auxiliary calculation device for engineering cost, this embodiment includes:

[0033] Fixed box 1;

[0034] The movable box 2 is rotatably connected to the fixed box 1. The fixed box 1 and the movable box 2 form a space for storing materials for engineering cost calculation. The sizes of the fixed box 1 and the movable box 2 are selected according to actual needs and are not subject to the diagram;

[0035] The U-shaped auxiliary plate 3 has two slide grooves on the side of the fixed box 1. Both sides of the auxiliary plate 3 are connected to sliders 4 that are slidably connected to the slide grooves. Both sides of the auxiliary plate 3 are connected to handles 5 for easy carrying and multiple rollers 6 for easy movement. The rollers are universal wheels. The handles 5 and the rollers 6 are used to carry the whole to the designated location;

[0036] The two sides of the auxiliary plate 3 are connected to the support plate 7 by the damping shaft. The support plate 7 can also be replaced with a structure with an extended elongation function to increase the length of use and improve the display effect. The two sides of the auxiliary plate 3 are also connected to trapezoidal blocks 8 for the support plate 7 after limited rotation. The slide groove of the fixing box 1 is provided with a threaded hole, and the threaded hole is threadedly connected with an auxiliary threaded rod 12. The side of the auxiliary plate 3 is provided with a circular hole for the auxiliary threaded rod 12 to pass through. When the auxiliary threaded rod 12 passes through the circular hole, it is in the retracted state. When the auxiliary threaded rod 12 presses against the fixed block, it is in the expanded state. The sides of the four support plates 7 are connected with a pull rope 13. When the support plate 7 is in the flip support state, the two adjacent pull ropes 13 are tied and fixed to maintain the stability of the two support plates 7, and the fixation of the auxiliary threaded rod 12 is released. The slider 4 and the auxiliary plate 3 are moved, and the slider 4 is limited by the auxiliary threaded rod 12. Then the support plate 7 is flipped over and fixed by the pull rope 13, forming a shape-expanding support.

[0037] In order to increase the display area and display effect, storage channels are provided on the sides of the fixed box 1 and the movable box 2, and an adjustment plate 9 is provided in the storage channel. The side of the adjustment plate 9 is connected with a paper clamp 10 for fixing the paper materials of the engineering cost calculation. A threaded channel connected to the storage channel is provided on the side of the movable box 2. The threaded channel is threadedly connected with a fixed threaded rod 11 for fixing the adjustment plate 9. By adjusting the position of the adjustment plate 9, the upper adjustment plate 9 is fixed with the fixed threaded rod 11, and the lower adjustment plate 9 is adjusted to make it rest against the auxiliary plate 3, thereby increasing the display area, and the paper materials of the engineering cost calculation are fixed and displayed with the paper clamp 10.

[0038] The fixed box 1 and the movable box 2 are connected and fixed by a first lock. After the movable box 2 is unfolded, a second lock is installed on the side of the fixed box 1 for fixing the movable box 2. The things in the movable box 2 and the fixed box 1 are taken out, the movable box 2 and the fixed box 1 are fully unfolded, and fixed with the second lock. Compared with the traditional display when the lid is opened, the display effect is better.

[0039] A storage box 14 for storing auxiliary items for construction cost can be detachably connected to both the fixed box 1 and the movable box 2. The storage box 14 is provided with structures required for calculation and display, such as a pen and a magnetic stone.

[0040] How it works

[0041] The portable auxiliary calculation device for engineering cost is carried to a designated location by using a handle 5, and the contents of the movable box 2 and the fixed box 1 are taken out. The movable box 2 and the fixed box 1 are fully unfolded, fixed by using a second lock, the fixing of the auxiliary threaded rod 12 is released, the slider 4 and the auxiliary plate 3 are moved, the slider 4 is limited by the auxiliary threaded rod 12, and then the support plate 7 is flipped over and fixed by using a drawstring 13. The support is in an unfolded shape.

[0042] By adjusting the position of the adjustment plate 9, fixing the upper adjustment plate 9 with the fixed threaded rod 11, and adjusting the lower adjustment plate 9 to make it rest against the auxiliary plate 3, the display area is increased, and the paper materials of the engineering cost calculation are fixed and displayed using the paper clip 10.

[0043] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "including an element defined by ... does not exclude the presence of other identical elements in the process, method, article or device that includes the element."

[0044] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable auxiliary calculation device for engineering cost, characterized in that: include: Fixed box (1); The movable box (2) is rotatably connected to the fixed box (1), and the fixed box (1) and the movable box (2) form a space for storing materials for engineering cost calculation; A U-shaped auxiliary plate (3), two slide grooves are provided on the side of the fixed box (1), both sides of the auxiliary plate (3) are connected to sliders (4) slidably connected to the slide grooves, and both sides of the auxiliary plate (3) are respectively connected to a handle (5) for easy carrying and a plurality of rollers (6) for easy movement; Both sides of the auxiliary plate (3) are rotatably connected to the support plate (7) via a damping shaft, and both sides of the auxiliary plate (3) are also connected to a trapezoidal block (8) for limiting the rotation of the support plate (7).

2. A portable auxiliary calculation device for construction cost according to claim 1, characterized in that: The sides of the fixed box (1) and the movable box (2) are both provided with storage channels, and an adjustment plate (9) is provided in the storage channels. A paper clip (10) for fixing paper materials for engineering cost calculations is connected to the side of the adjustment plate (9).

3. A portable auxiliary calculation device for construction cost according to claim 2, characterized in that: A threaded channel communicating with the storage channel is provided on the side of the movable box (2), and a fixed threaded rod (11) for fixing the adjustment plate (9) is threadedly connected to the threaded channel.

4. A portable auxiliary calculation device for construction cost according to claim 3, characterized in that: The fixed box (1) and the movable box (2) are connected and fixed via a first lock; after the movable box (2) is unfolded, a second lock for fixing the movable box (2) is installed on the side of the fixed box (1).

5. The portable auxiliary calculation device for construction cost according to claim 1 is characterized in that: The sliding groove of the fixed box (1) is provided with a threaded hole, and the threaded hole is threadedly connected to an auxiliary threaded rod (12). The side of the auxiliary plate (3) is provided with a circular hole for the auxiliary threaded rod (12) to pass through. When the auxiliary threaded rod (12) passes through the circular hole, it is in a retracted state. When the auxiliary threaded rod (12) abuts against the fixed block, it is in an expanded state.

6. The portable auxiliary calculation device for construction cost according to claim 1 is characterized in that: The sides of the four support plates (7) are all connected with a drawstring (13). When the support plates (7) are in a flipped support state, two adjacent drawstrings (13) are fastened and fixed to maintain the stability of the two support plates (7).

7. The portable auxiliary calculation device for construction cost according to claim 4 is characterized in that: The fixed box (1) and the movable box (2) are both detachably connected with a storage box (14) for storing engineering cost auxiliary items.

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