A portable construction cost analysis device

Abstract

This utility model discloses a portable construction cost analysis device, relating to the field of data analysis auxiliary equipment technology. It includes a first writing board and a second writing board arranged front to back, with hinges movably connecting the tops of the first and second writing boards. Both the front and rear sides of the first writing board and the front side of the second writing board are magnetic surfaces, and a magnetic pressing block is attached to the first writing board. A first support plate is provided at the bottom of the second writing board. This utility model allows for writing analysis using the first and second writing boards, and provides support through a support structure formed by the support rod and the first support plate. The magnetic surfaces on the first and second writing boards allow for magnetic attachment and fixation of engineering drawings, facilitating data comparison. The first and second writing boards are foldable, and the first support plate and support rod can retract to the bottom of the second writing board, thus folding the device for easy carrying.

Description

Technical Field

[0001] This utility model relates to the field of data analysis auxiliary equipment technology, specifically a portable construction engineering cost analysis device. Background Technology

[0002] Construction cost refers to the estimated or actual construction expenses incurred during the construction period of a project. Because construction cost is affected by various factors during the construction period, it is not a fixed value. Therefore, it needs to be obtained through analysis, which requires the use of construction cost analysis equipment.

[0003] Current engineering cost analysis methods use large whiteboards for analysis, but engineering cost analysis requires on-site investigation at the construction site. However, ordinary whiteboards are too large to carry and therefore inconvenient for analysis. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a portable construction cost analysis device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable construction cost analysis device, comprising a first writing board and a second writing board arranged front to back, with hinges movably connected to the top of the first and second writing boards. The front and rear sides of the first writing board and the front side of the second writing board are magnetic surfaces, and a magnetic pressure block is adsorbed on the first writing board. A first support plate is provided at the bottom of the second writing board, and a retractable support rod is connected between the second writing board and the first support plate. A perforation is provided at the bottom of the second writing board, and the support rod passes through the perforation and retracts into the cavity. Both the first and second writing boards are provided with cavities, and the left and right sides of the cavities are open. Two movable plates are slidably connected within the cavities. Pull plates are provided on the left and right sides of both the first and second writing boards, and the movable plates are fixedly connected to adjacent pull plates. The front side of the movable plates is a magnetic surface. The top of both the first and second writing boards is provided with grooves, and a handle is fixedly connected within the grooves.

[0006] As described above, the top and bottom of the movable plate away from the pull plate and the top and bottom of the cavity near the pull plate are each embedded with a first magnet. The rear side of the second writing plate is provided with an incline groove, and the top of the second writing plate is provided with a through hole communicating with the groove. An L-shaped insert rod is provided in the groove, and the insert rod is inserted into the through hole. The top of the first writing plate is provided with a socket that matches the insert rod.

[0007] As described above, the support rod consists of a vertical tube, a connecting tube, and a vertical rod. The vertical tube is slidably connected to the cavity through a perforation, and the vertical rod is fixedly connected to the second writing board. The connecting tube is inserted into the vertical tube, and the vertical rod is inserted into the connecting tube.

[0008] As described above, a fixed tube is fixedly connected to the bottom perforation of the cavity, and the vertical tube passes through the fixed tube. External threads are provided on the outer periphery of the vertical tube, the connecting tube, and near the top. Internal threads matching the external threads are provided on the inner wall of the vertical tube, the connecting tube, and the fixed tube near the bottom.

[0009] As described above, the first support plate consists of two horizontal plates, which are arranged crosswise. Both horizontal plates are movably connected to the vertical rod, and each horizontal plate has a second magnet embedded in it that attracts the first magnet.

[0010] As described above, each of the two horizontal plates has an opening at its center, and the vertical rod is movably connected to both openings via bearings. Both horizontal plates and the vertical rod are fixedly connected with a spiral spring, and the two spiral springs are arranged in opposite directions.

[0011] As described above, the rear side of the second writing board is movably connected by a hinge to two second support plates distributed on the left and right. The two second support plates are distributed on the left and right, and the top of each support plate is integrally provided with a limit block. The rear side of the second writing board is provided with a limit groove that matches the limit block.

[0012] Compared with existing technologies, this portable construction cost analysis device has the following advantages:

[0013] I. This utility model enables writing analysis by setting up a first writing board and a second writing board, and provides support by forming a support structure with a support rod and a first support plate. Magnetic surfaces are provided on the first and second writing surfaces, which can magnetically attract and fix engineering drawings for easy data reference and comparison. The first and second writing boards can be folded together, and the first support plate and support rod can be retracted to the bottom of the second writing board, thereby folding the device for easy carrying.

[0014] Second, this utility model connects the first writing board and the second writing board with a hinge, allowing the first writing board to be flipped upwards. At the same time, both the first and second writing boards are equipped with movable plates, which can be pulled out by pulling the plates, thereby expanding the device, increasing the writing surface, and facilitating the analysis of more data.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the unfolded structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the support plate structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the support rod structure of this utility model;

[0022] Figure 7 For the present utility model Figure 2 Enlarged view of point A in the middle.

[0023] In the diagram: 1. First writing board; 2. Second writing board; 3. Pull plate; 4. Support rod; 401. Vertical tube; 402. Connecting tube; 403. Vertical rod; 404. Fixed tube; 5. Movable plate; 6. First support plate; 601. Horizontal plate; 602. Snail spring; 7. Second support plate; 8. Insert rod. Detailed Implementation

[0024] 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.

[0025] like Figure 1-7As shown, this utility model provides a technical solution: a portable construction cost analysis device, including a first writing board 1 and a second writing board 2 arranged front and back, with hinges movably connected to the top of the first writing board 1 and the second writing board 2. The front and rear sides of the first writing board 1 and the front side of the second writing board 2 are magnetic surfaces, and a magnetic pressure block is adsorbed on the first writing board 1. A first support plate 6 is provided at the bottom of the second writing board 2, and a retractable support rod 4 is connected between the second writing board 2 and the first support plate 6. A perforation is opened at the bottom of the second writing board 2, and the support rod 4 passes through the perforation and retracts into the cavity. Both the first writing board 1 and the second writing board 2 are provided with cavities, and the left and right sides of the cavities are open. Two movable plates 5 are slidably connected in the cavities. Pull plates 3 are provided on the left and right sides of the first writing board 1 and the second writing board 2. The movable plates 5 are fixedly connected to the adjacent pull plates 3. The front side of the movable plates 5 is a magnetic surface. The top of both the first writing board 1 and the second writing board 2 are provided with grooves, and handles are fixedly connected in the grooves.

[0026] Based on the overall structure of the device, during use, writing analysis can be performed through the first writing board 1 and the second writing board 2. The first writing board 1 can be flipped upwards and spliced ​​on top of the second writing board 2. At the same time, the movable plate 5 inside the first writing board 1 and the second writing board 2 can be pulled out to unfold a larger writing surface, which facilitates the analysis of more data. The first writing board 1 and the second writing board 2 are provided with magnetic suction surfaces, so that engineering drawings can be magnetically fixed to the device, which facilitates data reference and comparison and improves the accuracy of data analysis. During the analysis process, the support plate and the support rod 4 form a support mechanism to provide support for the first analysis board and the second analysis board.

[0027] like Figure 3 As shown, the top and bottom of the movable plate 5, away from the pull plate 3, and the top and bottom of the cavity, near the pull plate 3, are all embedded with first magnets. The top and bottom of the movable plate 5, away from the pull plate 3, are all integrally provided with stop blocks. The rear side of the second writing plate 2 has an incline groove, and the top of the second writing plate 2 has a through hole communicating with the groove. An L-shaped insertion rod 8 is provided in the groove, and the insertion rod 8 is inserted into the through hole. The top of the first writing plate 1 has an insertion hole that matches the insertion rod 8.

[0028] The movable plate 5 is fixed by the adsorption between the first magnets. The stop block prevents the movable plate 5 from detaching from the cavity. When the first writing plate 1 and the second writing plate 2 are spliced ​​together, the first writing plate 1 is flipped upward and the insert rod 8 is flipped so that the horizontal part of the insert rod 8 moves out of the groove. At this time, the insert rod 8 can be pushed upward so that the insert rod 8 is inserted into the insertion hole on the first writing plate 1. Then the horizontal part of the insert rod 8 is pushed back into the groove so that it is stuck in the groove, thereby fixing the insert rod 8 and thus fixing the first writing plate 1.

[0029] like Figure 6As shown, the support rod 4 is composed of a vertical tube 401, a connecting tube 402 and a vertical rod 403. The vertical tube 401 is slidably connected in the cavity through the perforation, and the vertical rod 403 is fixedly connected to the second writing board 2. The connecting tube 402 is inserted into the vertical tube 401, and the vertical rod 403 is inserted into the connecting tube 402.

[0030] The telescopic structure is formed by the sequential insertion of the vertical tube 401, the connecting tube 402 and the vertical rod 403, so that the support rod 4 can be stretched out when in use and folded in when not in use, making it easy to carry.

[0031] like Figure 3 As shown, a fixed tube 404 is fixedly connected to the perforation at the bottom of the cavity. The vertical tube 401 passes through the fixed tube 404. External threads are provided on the outer periphery of the vertical tube 401, the connecting tube 402, and near the top. Internal threads matching the external threads are provided on the inner walls of the vertical tube 401, the connecting tube 402, and the fixed tube 404 near the bottom. The top of the vertical tube 401 is bent outward to form an outer edge. The inner walls of the vertical tube 401 and the connecting tube 402 are constricted near the bottom. The tops of the connecting tube 402 and the vertical tube 401 are matched with the constricted ends.

[0032] The threaded connection facilitates the fixing of the vertical pipe 401, connecting pipe 402 and vertical rod 403, and is easy to operate. It also facilitates the extension and retraction of the support rod 4. The outer edge and constriction setting limit the vertical pipe 401, connecting pipe 402 and vertical rod 403 to prevent the fixing pipe 404, vertical rod 403, connecting pipe 402 and vertical rod 403 from separating.

[0033] like Figure 5 As shown, the first support plate 6 is composed of two horizontal plates 601, which are arranged crosswise. Both horizontal plates 601 are movably connected to the vertical rod 403. Each horizontal plate 601 has a second magnet embedded in it that attracts the first magnet. Each horizontal plate 601 has an opening at its center, and the two openings are movably connected to each other through bearings. Both horizontal plates 601 and the vertical rod 403 are fixedly connected to a spiral spring 602, and the two spiral springs 602 are arranged in opposite directions.

[0034] The two intersecting horizontal plates 601 can be unfolded to form an X shape, increasing the force-bearing surface between the support plate and the ground, thereby providing stable support. The support plate can be attracted and fixed to the bottom of the second writing board 2 by the attraction between the second magnet and the first magnet. When the horizontal plate 601 is folded to the bottom of the second writing board 2, the spiral spring 602 is in a coiled and compressed state. Therefore, when unfolding the support structure, the support plate is separated from the second writing board 2, and the two horizontal plates 601 will automatically deflect and unfold under the elastic force of the spiral spring 602, and always maintain the unfolded posture.

[0035] like Figure 2As shown, the rear side of the second writing board 2 is movably connected by a hinge to two second support plates 7 distributed on the left and right. The two second support plates 7 are distributed on the left and right, and the top of the two support plates is integrally provided with a limit block. The rear side of the second writing board 2 is provided with a limit groove that matches the limit block.

[0036] By pulling open the second support plate 7 to form an acute angle between the second support plate 7 and the second writing plate 2, the device can be supported on the table by the second support plate 7 when the first writing plate 1 and the second writing plate 2 are folded. When the second support plate 7 is pulled open, the limiting block is inserted into the limiting groove and abuts against the limiting groove, thereby limiting the second support plate 7 and making the second support plate 7 stable.

[0037] Working principle: During use, writing analysis can be performed through the first writing board 1 and the second writing board 2. The first writing board 1 can be flipped upwards and spliced ​​on top of the second writing board 2. At the same time, the movable plate 5 inside the first writing board 1 and the second writing board 2 can be pulled out to unfold a larger writing surface, which facilitates the analysis of more data. The first writing board 1 and the second writing board 2 are equipped with magnetic surfaces, so engineering drawings can be magnetically fixed to the device, which facilitates data reference and comparison and improves the accuracy of data analysis. During the analysis process, the support plate and the support rod 4 form a support mechanism to provide support for the first analysis board and the second analysis board.

[0038] 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. A portable construction cost analysis device, characterized by: The system includes a first writing board (1) and a second writing board (2) positioned front to back, with hinges connecting the tops of the first writing board (1) and the second writing board (2). The front and rear sides of the first writing board (1) and the front side of the second writing board (2) are magnetic surfaces, and a magnetic pressing block is attached to the first writing board (1). A first support plate (6) is provided at the bottom of the second writing board (2), and a retractable support rod (4) connects the second writing board (2) and the first support plate (6). A perforation is provided at the bottom of the second writing board (2), and the support rod... (4) It retracts into the cavity through the perforation. The first writing board (1) and the second writing board (2) are both provided with cavities, and the left and right sides of the cavity are open. Two movable plates (5) are slidably connected in the cavity. Pull plates (3) are provided on the left and right sides of the first writing board (1) and the second writing board (2). The movable plate (5) is fixedly connected to the adjacent pull plate (3). The front side of the movable plate (5) is a magnetic suction surface. The top of the first writing board (1) and the second writing board (2) are both provided with grooves, and handles are fixedly connected in the grooves.

2. A portable construction cost analysis device according to claim 1, wherein: The top and bottom of the movable plate (5) away from the pull plate (3) and the top and bottom of the cavity near the pull plate (3) are each inlaid with a first magnet. The second writing plate (2) has a C-shaped groove on its rear side and a through hole communicating with the groove on its top. An L-shaped insert rod (8) is provided in the groove and is inserted into the through hole. The first writing plate (1) has a socket on its top that matches the insert rod (8).

3. The portable construction cost analysis device of claim 1, wherein: The support rod (4) consists of a vertical tube (401), a connecting tube (402) and a vertical rod (403). The vertical tube (401) is slidably connected to the cavity through the perforation, and the vertical rod (403) is fixedly connected to the second writing board (2). The connecting tube (402) is inserted into the vertical tube (401), and the vertical rod (403) is inserted into the connecting tube (402).

4. A portable construction cost analysis device according to claim 3, wherein: A fixed tube (404) is fixedly connected to the bottom perforation of the cavity. The vertical tube (401) passes through the fixed tube (404). External threads are provided on the outer periphery of the vertical tube (401), the connecting tube (402), and the top of the vertical tube (401). Internal threads matching the external threads are provided on the inner wall of the vertical tube (401), the connecting tube (402), and the inner wall of the fixed tube (404) near the bottom.

5. The portable construction cost analysis device of claim 1, wherein: The first support plate (6) is composed of two horizontal plates (601), which are arranged crosswise. Both horizontal plates (601) are movably connected to the vertical rod (403), and each horizontal plate (601) has a second magnet that is attracted to the first magnet.

6. A portable construction cost analysis device according to claim 5, wherein: Both horizontal plates (601) have openings at their centers. The vertical rod (403) is movably connected to both openings via bearings. Both horizontal plates (601) and the vertical rod (403) are fixedly connected with spiral springs (602), and the two spiral springs (602) are arranged in opposite directions.

7. The portable construction cost analysis device of claim 1, wherein: The second writing board (2) is connected to two second support plates (7) distributed on the left and right sides by a hinge. The two second support plates (7) are distributed on the left and right sides, and the top of the two support plates is integrally provided with a limit block. The second writing board (2) has a limit groove that matches the limit block on the rear side.

Images