A construction engineering cost analysis device

Abstract

The application discloses a building engineering cost analysis device, and relates to the technical field of building engineering management. The device comprises a shell, a rotating plate, a display screen, a supporting plate and a storage mechanism. The shell is provided with a groove and is connected with a driving box and a connecting shell. A screw rod in the driving box drives the supporting plate to lift through a bevel gear transmission. The supporting plate is fixed with paper through a spring and a pressing plate. The rotating plate is rotationally connected through a fixing frame and is stably supported through cooperation of an L-shaped frame and a connecting rod. The shell is provided with a mounting groove for storing a pen body. The application solves the problems of insufficient function integration, poor portability and adaptability of the existing device, integrates intelligent data display and manual writing calculation functions, has a compact structure and can be flexibly stored, is convenient to operate, is suitable for mobile operation requirements, and effectively improves the efficiency and practicality of building engineering cost analysis.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, specifically to a building engineering cost analysis device. Background Technology

[0002] Construction cost analysis is a core component of construction project management, spanning the entire lifecycle from feasibility studies and design to construction and completion. Its accuracy and efficiency directly impact project budget control, resource allocation, and investment returns. With the increasing scale and complexity of the construction industry, cost estimators' work environments are gradually shifting from fixed office settings to mobile on-site operations. This places higher demands on analysis devices: they must possess intelligent data display capabilities to intuitively present cost data, quota standards, and market information, supporting rapid data analysis; they must also adapt to the characteristics of on-site operations, meeting the manual writing needs of scenarios such as drawing verification and ad-hoc calculations; and they must balance structural compactness and portability, facilitating use across different construction sites, providing cost estimators with integrated hardware support of "intelligent analysis + manual operation."

[0003] Existing construction cost analysis devices suffer from insufficient functional integration or structural adaptability, making it difficult to meet the needs of various on-site operations. For example, the "Construction Cost Analysis Device" disclosed in authorization announcement number CN220688491U focuses on the buffer protection of the display screen, using buffer springs, compression springs, and protective plates to prevent damage. However, it only provides a single protective function and lacks paper fixing mechanisms and pen storage structures, failing to meet the needs of on-site writing and calculation. Another example is the "Construction Cost Analysis Device" in authorization announcement number CN216416432U, which, although foldable into a display stand or desk, lacks multi-angle adjustment and stable support structures for its display screen, and still occupies a significant amount of space after folding. Furthermore, it lacks integrated intelligent data display and transmission lifting functions, making it difficult to balance portability, operational flexibility, and functional diversity, thus failing to meet the comprehensive needs of cost estimators for efficient on-site operations. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a construction project cost analysis device that solves the common defects of insufficient functional integration and lack of structural adaptability in existing construction project cost analysis devices, making it difficult to meet the needs of cost estimators for efficient on-site operation that integrates intelligent analysis and manual operation.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a construction cost analysis device, comprising a housing, the interior of which is provided with a slot, two fixed frames fixedly connected to the upper rear end of the housing, a rotating plate rotatably connected inside the fixed frames, a display screen mounted on the inner end of the rotating plate, a drive box fixedly connected to the middle of the bottom side of the housing, a rotating rod rotatably connected laterally to the inner side of the drive box, and a rotating component fixedly connected to one end of the rotating rod through the housing and outward; The rotating rod is fixedly connected to a bevel gear one on the inner side of the drive box. The inner side of the drive box is longitudinally rotatably connected to a screw rod two. The screw rod two is fixedly connected to a bevel gear two on the inner side of the drive box. The bevel gear one and the bevel gear two mesh with each other. The outer end of the screw rod two is threaded with a screw sleeve. The top of the screw sleeve is slotted and fixedly connected to a support plate. The inner four ends of the support plate are slidably connected to a slide rod. A pressure plate is fixedly connected to the top of the slide rod. A spring is sleeved on the slide rod. The upper end of the spring is fixedly connected to the bottom of the support plate. A limit plate is fixedly connected to the bottom of the slide rod. The other end of the spring is fixedly connected to the limit plate. Slide grooves are formed at both ends of the inner side of the slot. A column is fixedly connected inside the slide groove. Slider blocks are fixedly connected to both ends of the support plate. The sliders are slidably connected to the column.

[0006] Preferably, two mounting slots are provided at the front of the housing, and a silicone pad is fitted at the outer end of the mounting slot.

[0007] Preferably, an arc-shaped frame is fixedly connected to the lower inner side of the mounting groove, and a pen body is correspondingly arranged inside the arc-shaped frame.

[0008] Preferably, a screw is threaded into the upper middle part of the inner side of the mounting groove. The top of the screw is fixedly connected to a rotating component through the housing. The lower end of the screw is rotatably connected to an arc-shaped frame. The arc-shaped frame and the arc-shaped frame cooperate with each other.

[0009] Preferably, the upper two ends of the arc-shaped frame 2 are fixedly connected to a limiting frame, and the limiting frame is slidably connected inside the housing.

[0010] Preferably, the outer ends of the housing are fixedly connected to connecting shells, and the connecting shells are rotatably connected to a screw three. The outer end of the screw three is threaded with an L-shaped bracket, which is disposed through the interior of the connecting shell.

[0011] Preferably, a storage rack is fixedly connected to both ends of the rear side of the rotating plate, and a rotating shaft is fixedly connected to the top of the storage rack.

[0012] Preferably, a connecting rod is rotatably connected to the rotating shaft, a positioning groove is provided through the end of the L-shaped frame, the positioning groove corresponds to the connecting rod, a handle is fixedly connected to the middle of the rear side of the housing, and slide rods are fixedly connected to the upper and lower ends of the inner side of the connecting housing, and the L-shaped frame is slidably connected to slide rods.

[0013] (III) Beneficial Effects This invention provides a construction project cost analysis device. It has the following beneficial effects: 1. The present invention features a compact and reasonable structural design. Through the coordinated operation of multiple components, it achieves convenient operation and flexible storage. The shell serves as the core load-bearing foundation, and the rotating plate can be positioned at any angle through the damping bearing. Combined with the support structure of the L-shaped frame and connecting rod, it can quickly fix the position of the display screen to meet the viewing needs of different usage scenarios. The support plate achieves smooth lifting and lowering through the cooperation of bevel gear transmission and screw sleeve. The spring-driven pressure plate can quickly fix the paper, and the pen body is clamped and stored through the arc frame combination. The overall components are stably connected and operate smoothly. When not in use, it can be folded and stored without taking up extra space. With the addition of a handle, it is easy to carry, greatly improving the portability and flexibility of the device.

[0014] 2. This invention integrates intelligent data display and manual writing / calculation functions, making it highly practical. The touchscreen display can intuitively present engineering cost analysis data, while the support plate and pen storage structure meet the needs of on-site writing and calculation, eliminating the need to carry additional auxiliary tools. Each transmission component uses high-quality materials and precise matching design, with smooth bevel gear meshing, smooth screw transmission, and low-friction cooperation between the slider and the slide rod ensuring stable component movement. The paper and pen fixing structure is reliable, effectively preventing displacement or detachment during use. This achieves an efficient combination of intelligent operation and manual work, significantly improving the convenience and efficiency of engineering cost analysis. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a construction engineering cost analysis device proposed in this invention; Figure 2 This is a top view of a construction project cost analysis device proposed in this invention; Figure 3 This is a rear view of a construction project cost analysis device proposed in this invention; Figure 4 This is a schematic diagram of the support plate structure of a construction engineering cost analysis device proposed in this invention; Figure 5 This is a schematic diagram of the connecting shell structure of a construction engineering cost analysis device proposed in this invention; Figure 6 This is a schematic diagram of the internal structure of the drive box of a construction engineering cost analysis device proposed in this invention.

[0016] The components are as follows: 1. Housing; 2. Slot; 3. Rotating plate; 4. Display screen; 5. Fixing frame; 6. Connecting shell; 7. Mounting slot; 8. Arc-shaped frame one; 9. Pen body; 10. Screw one; 11. Arc-shaped frame two; 12. Silicone pad; 13. L-shaped frame; 14. Support plate; 15. Slide rod one; 16. Pressure plate; 17. Rotating shaft; 18. Storage rack; 19. Positioning slot; 20. Handle; 21. Limiting frame; 22. Connecting rod; 23. Spring; 24. Drive box; 25. Rotating rod; 26. Limiting plate; 27. Screw two; 28. Screw sleeve; 29. ​​Slide rod two; 30. Screw three; 31. Bevel gear one; 32. Bevel gear two. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example: like Figure 1-6As shown, this embodiment of the invention provides a construction cost analysis device, including a housing 1. A slot 2 is provided inside the housing 1. Two fixed brackets 5 are fixedly connected to the upper rear end of the housing 1. A rotating plate 3 is rotatably connected inside the fixed brackets 5. A display screen 4 is installed at the inner end of the rotating plate 3. A drive box 24 is fixedly connected to the middle of the bottom side of the housing 1. A rotating rod 25 is rotatably connected laterally inside the drive box 24. One end of the rotating rod 25 passes through the housing 1 and is fixedly connected to a rotating component. A bevel gear 31 is fixedly connected to the portion of the rotating rod 25 inside the drive box 24. A screw 27 is rotatably connected to the inner side of the drive box 24. A bevel gear 32 is fixedly connected to the portion of the screw 27 inside the drive box 24. The bevel gear 31 and the bevel gear 32 mesh with each other. A threaded sleeve 28 is threaded onto the outer end of the screw 27. A support plate 14 is fixedly connected upwards through the slot 2 at the top of the threaded sleeve 28. The four ends of the support plate 14 are... A sliding rod 15 is slidably connected, and a pressure plate 16 is fixedly connected to the top of the sliding rod 15. A spring 23 is sleeved on the sliding rod 15, and the upper end of the spring 23 is fixedly connected to the bottom of the support plate 14. A limit plate 26 is fixedly connected to the bottom of the sliding rod 15, and the other end of the spring 23 is fixedly connected to the limit plate 26. Slide grooves are opened at both ends of the inner side of the slot 2, and columns are fixedly connected inside the slide grooves. Slider blocks are fixedly connected to both ends of the support plate 14, and the sliders are slidably connected to the columns. The housing 1 adopts an integrated aluminum alloy die-cast cuboid structure. The slot 2 is opened along its length to reserve space for the lifting of the support plate 14. The fixing frame 5 is fixed to the rear end of the upper surface of the housing 1 by welding. The inner side is rotatably connected to a hard plastic rotating plate 3 by means of a stainless steel rotating shaft. The inner end of the rotating plate 3 is bolted with a touch screen display 4, which is electrically connected to the reserved power interface inside the housing 1 for displaying engineering cost analysis data and operation interface. The drive box 24 is a closed welded steel plate structure, fixed to the middle of the bottom side of the housing 1 by bolts, serving to protect the internal transmission components. The rotating rod 25 is made of No. 45 steel round rod, with a hexagonal rotating part welded to one end of the rod that passes through the housing 1 for easy manual gripping and rotation, and is rotatably connected to the inner wall of the drive box 24 by a deep groove ball bearing. Both bevel gear 1 31 and bevel gear 2 32 are straight bevel gears, fixed to the rotating rod 25 and screw 27 respectively by flat keys, ensuring smooth meshing and transmission without jamming. Screw 27 is a trapezoidal screw, rotatably connected to the inner walls of the upper and lower ends of the drive box 24 by a thrust bearing. Its external threaded sleeve 28 is made of brass, and its top is vertically fixed to the bottom center of the support plate 14 made of wood fiberboard by bolts. The support plate 14 has sliding holes through its four ends, and a stainless steel round rod 15 slides through it. A circular pressure plate 16 is welded to the top and a limiting plate 26 is welded to the bottom to prevent the slide rod 15 from coming out. A cylindrical spiral compression spring 23 is fitted on the slide rod 15 to provide a stable clamping force to the pressure plate 16 to fix the paper.A stainless steel round rod column is fixed in the rectangular sliding groove inside the slot 2. The nylon sliders at both ends of the support plate 14 slide with the column, effectively reducing sliding friction and ensuring that the support plate 14 rises and falls smoothly.

[0019] Two mounting slots 7 are provided on the front of the housing 1. A silicone pad 12 is installed at the outer end of the mounting slot 7. The mounting slots 7 are symmetrically provided on the front face of the housing 1. The edges of the slots are chamfered to avoid scratching the hands. The silicone pad 12 is made of food-grade silicone material. Its shape and size are perfectly matched with the slot of the mounting slot 7. The outer surface is printed with anti-slip texture. It is fixed to the mounting slot 7 by buckles evenly distributed around the edges. It is easy to disassemble and has a good sealing effect, which can effectively prevent dust from entering the interior of the mounting slot 7.

[0020] An arc-shaped frame 8 is fixedly connected to the lower inner side of the mounting groove 7. The pen body 9 is correspondingly set inside the arc-shaped frame 8. The arc-shaped frame 8 is injection molded from ABS plastic, and the inner wall is pasted with an anti-slip rubber pad with longitudinal anti-slip texture to increase the friction with the pen body 9. The commonly used ballpoint pen body 9 is placed in the arc-shaped groove of the arc-shaped frame 8 to ensure that the pen body 9 is placed stably and will not slide axially.

[0021] The upper part of the inner side of the mounting groove 7 is threaded with a screw rod 10. The top of the screw rod 10 passes through the housing 1 and is fixedly connected to a rotating part. The lower end of the screw rod 10 is rotatably connected to an arc-shaped frame 11. The arc-shaped frame 18 and the arc-shaped frame 11 cooperate with each other. The screw rod 10 is a common coarse thread screw rod. The top is welded with a hexagonal rotating part that is the same as the end of the rotating rod 25 for unified operation. A matching internal thread hole is opened in the upper part of the inner side of the mounting groove 7 to ensure a stable connection. The arc-shaped frame 11 is also injection molded from ABS plastic. The curvature is the same as that of the arc-shaped frame 18 and the inner wall is pasted with anti-slip rubber pads. The center of its upper end face is rotatably connected to the lower end of the screw rod 10 through a deep groove ball bearing to ensure that the arc-shaped frame 11 only moves up and down when the screw rod 10 rotates. The second arc frame 11 is located directly above the first arc frame 8. The distance between the two can be adjusted by the screw 10. When the pen body 9 is placed inside the first arc frame 8, rotating the screw 10 drives the second arc frame 11 to move downward, which can achieve moderate clamping and fixing of the pen body 9, without damaging the pen body 9 and preventing it from falling.

[0022] Limiting frames 21 are fixedly connected to the upper two ends of the arc-shaped frame 11. The limiting frames 21 are slidably connected inside the housing 1. The limiting frames 21 are stainless steel square rods, which are welded to the two ends of the upper surface of the arc-shaped frame 11 and parallel to the length direction of the arc-shaped frame 11. The inner wall of the vertical guide hole opened at the corresponding position of the housing 1 is polished. The end of the limiting frame 21 away from the arc-shaped frame 11 slides through the guide hole, which can effectively limit the rotational freedom of the arc-shaped frame 11, ensure that it moves along the vertical straight line, and avoid offset collision with the pen body 9.

[0023] Connecting shells 6 are fixedly connected to both ends of the outer side of the housing 1. A screw 30 is rotatably connected inside the connecting shell 6. An L-shaped bracket 13 is threaded onto the outer end of the screw 30. The L-shaped bracket 13 is installed inside the connecting shell 6. The connecting shell 6 is a rectangular steel plate welded structure, which is symmetrically fixed to both ends of the outer side of the housing 1 by bolts. It is flush with the outer surface of the housing 1 and does not occupy extra space. The screw 30 is rotatably connected to the inner wall of the connecting shell 6 by a deep groove ball bearing. One end of the screw 30 passes through the outer wall of the connecting shell 6 and is welded with a hexagonal rotating part for easy manual drive. The L-shaped bracket 13 is formed by bending stainless steel plate. The middle of the horizontal section has an internal threaded hole that matches the screw 30. The horizontal section passes through a rectangular through hole in the inner wall of the connecting shell 6, which allows it to slide stably in the lateral direction inside the connecting shell 6.

[0024] Storage racks 18 are fixedly connected to the rear ends of the rotating plate 3. A rotating shaft 17 is fixedly connected to the top of the storage rack 18. The storage rack 18 is a U-shaped steel plate with its opening facing the outside of the rotating plate 3. It is fixed to the rear ends of the rotating plate 3 by bolts and corresponds to the positions of the connecting shells 6 at both ends of the housing 1. The rotating shaft 17 is a stainless steel round rod, which is fixed vertically to the top center of the storage rack 18 by welding. The outer surface is chrome-plated to improve wear resistance and smoothness, which facilitates the flexible rotation and connection of the subsequent connecting rod 22.

[0025] A connecting rod 22 is rotatably connected to the rotating shaft 17. A positioning groove 19 is provided through the end of the L-shaped frame 13. The positioning groove 19 corresponds to the connecting rod 22. A handle 20 is fixedly connected to the middle of the rear side of the housing 1. The upper and lower ends of the inner side of the connecting housing 6 are fixedly connected to the sliding rod 29. The L-shaped frame 13 is slidably connected to the sliding rod 29. The connecting rod 22 is an aluminum alloy flat rod. One end has a through hole and is fitted onto the rotating shaft 17 with clearance fit, allowing for flexible rotation without jamming. The other end is rounded to facilitate insertion into the positioning groove 19. The positioning groove 19 is a rectangular groove, located at the end of the horizontal section of the L-shaped frame 13. The edge of the groove is chamfered. After the connecting rod 22 is inserted, it can stably support the rotating plate 3. The curved stainless steel tube handle 20, fixed in the middle of the rear end face of the housing 1, is fitted with a soft rubber sleeve with anti-slip texture and ventilation holes on the outer surface to improve grip comfort and facilitate carrying of the device; the stainless steel round rod slide bar 29, which is welded parallel to the upper and lower ends of the inner side of the housing 6, is slidably connected to the sliding hole opened at the corresponding position of the horizontal section of the L-shaped frame 13 through a nylon bushing, effectively reducing sliding friction and ensuring that the L-shaped frame 13 moves smoothly in the lateral direction.

[0026] Working principle: During use, the operator can move the entire housing 1 by using handle 20, ensuring the convenience of the entire analysis device. To use it, first rotate the screws 30 at both ends. Under the action of the threaded engagement, the L-shaped frame 21 can be gradually moved outward, thereby extending the L-shaped frame 21 to a suitable position. Then, rotate the rotating plate 3 to adjust the display screen 4 to a suitable position. Next, open the two connecting rods 22 behind the rotating plate 3, so that the connecting rods 22 rotate into the positioning groove 19 inside the L-shaped frame 13, thereby completing the quick support of the rotating plate 3 and the display screen 4, ensuring that the operator can stably use the display screen to complete the data analysis of construction cost. When paper is needed for writing and calculation, rotating the outer lever 25 drives the inner bevel gear 31 to rotate. Under meshing, bevel gear 32 and screw 27 rotate. Similarly, under the action of the threaded engagement, the support plate 14 can be moved upward gradually. At this time, there is paper on the support plate 14 that is easy to write on. At the same time, the four ends of the paper are in contact with the lower end of the pressure plate 16. Under the action of the spring 23 and the slide bar 15, the paper can be fixed. Then, the staff opens the silicone pad 12 at the front and rotates the screw 10. Under the action of the threaded engagement and the limiting frame 21, the arc frame 11 can be moved upward, ensuring that the staff can take out the pen 9 for writing and calculation. The entire device integrates intelligent operation and writing and calculation. When not in use, it can be folded and stored without taking up space, making it easy for staff to carry and greatly improving the convenience and practicality of the device.

[0027] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction project cost analysis device, comprising a housing (1), characterized in that: The housing (1) has a slot (2) inside. Two fixed brackets (5) are fixedly connected to the upper rear end of the housing (1). A rotating plate (3) is rotatably connected inside the fixed bracket (5). A display screen (4) is installed at the inner end of the rotating plate (3). A drive box (24) is fixedly connected to the middle of the bottom side of the housing (1). A rotating rod (25) is rotatably connected to the inner side of the drive box (24). One end of the rotating rod (25) passes through the housing (1) and is fixedly connected to a rotating component outward. The rotating rod (25) is fixedly connected to a bevel gear (31) on the inner side of the drive box (24). The inner side of the drive box (24) is longitudinally rotatably connected to a screw (27). The screw (27) is fixedly connected to a bevel gear (32) on the inner side of the drive box (24). The bevel gear (31) and the bevel gear (32) mesh with each other. The outer end of the screw (27) is threaded with a threaded sleeve (28). The top of the threaded sleeve (28) is fixedly connected to a support plate (14) through a slot (2). The inner four ends of the support plate (14) are slidably connected to a slide rod (15). The top of the slide rod (15) is fixedly connected to a pressure plate (16). A spring (23) is sleeved on the slide rod (15). The upper end of the spring (23) is fixedly connected to the bottom of the support plate (14). The bottom of the slide rod (15) is fixedly connected to a limit plate (26). The other end of the spring (23) is fixedly connected to the limit plate (26). The inner two ends of the slot (2) are provided with sliding grooves. A column is fixedly connected inside the sliding groove. The two ends of the support plate (14) are fixedly connected to sliders. The sliders are slidably connected to the column.

2. The construction project cost analysis device according to claim 1, characterized in that: Two mounting slots (7) are provided at the front of the housing (1), and a silicone pad (12) is installed at the outer end of the mounting slot (7).

3. The construction project cost analysis device according to claim 2, characterized in that: An arc-shaped frame (8) is fixedly connected to the lower inner side of the mounting groove (7), and a pen body (9) is correspondingly arranged inside the arc-shaped frame (8).

4. The construction project cost analysis device according to claim 2, characterized in that: The upper part of the inner side of the mounting groove (7) is threaded with a screw rod (10). The top of the screw rod (10) passes through the housing (1) and is fixedly connected to a rotating part. The lower end of the screw rod (10) is rotatably connected to an arc frame (11). The arc frame (8) and the arc frame (11) cooperate with each other.

5. The construction project cost analysis device according to claim 4, characterized in that: The upper two ends of the arc-shaped frame 2 (11) are fixedly connected to the limiting frame (21), and the limiting frame (21) is slidably connected inside the shell (1).

6. The construction project cost analysis device according to claim 1, characterized in that: The outer ends of the housing (1) are fixedly connected to the connecting shell (6), and the connecting shell (6) is rotatably connected to the screw three (30). The outer end of the screw three (30) is threaded with an L-shaped bracket (13), and the L-shaped bracket (13) is disposed through the interior of the connecting shell (6).

7. The construction project cost analysis device according to claim 6, characterized in that: The rear ends of the rotating plate (3) are fixedly connected to a storage rack (18), and the top of the storage rack (18) is fixedly connected to a rotating shaft (17).

8. The construction project cost analysis device according to claim 7, characterized in that: A connecting rod (22) is rotatably connected to the rotating shaft (17). A positioning groove (19) is provided through the end of the L-shaped frame (13). The positioning groove (19) corresponds to the connecting rod (22). A handle (20) is fixedly connected to the middle of the rear side of the housing (1). A slide rod (29) is fixedly connected to the upper and lower ends of the inner side of the connecting shell (6). The L-shaped frame (13) is slidably connected to the slide rod (29).

Images