A tool storage box for construction project cost estimation

Abstract

A tool storage box for construction cost estimation, belonging to the field of construction cost estimation technology, is disclosed. The device includes a main storage box and a first side box, a second side box, a third side box, and a fourth side box that are movably installed inside the main storage box from top to bottom. The main storage box includes a main body, casters installed at the bottom of the main body, a push-pull rod installed at the front of the main body, and a first limiting component and a second limiting component installed on the right side of the main body. The first, second, third, and fourth side boxes are all movably inserted through the right side of the main body. The first and second limiting components have the same structure. The third side box in this application device has a fixing function, which can tightly press and fix the drawings and documents inside the side box, thus preventing the drawings and documents from scattering during transportation.

Description

Technical Field

[0001] This utility model relates to the field of engineering cost technology, specifically to a tool storage box for construction engineering cost estimation. Background Technology

[0002] Construction project cost refers to the total funds and fixed asset investment in constructing a project, encompassing all expenses from project feasibility studies, investment decisions, design and construction to final delivery. Its core is to ensure the project is completed within the approved cost limit through budgeting, control, supervision, and management, rationally utilizing human, financial, and material resources to maximize investment returns. In construction cost work, to facilitate the categorization and management of materials, tools, and equipment needed for cost estimation, specialized construction cost storage boxes have been designed. These boxes can categorize and store drawings, documents, calculation tools, surveying equipment, etc., effectively improving work efficiency on-site or in the office.

[0003] For example, in the prior art, a patent application with application number CN202022311992.3 discloses a budget structure storage box for construction engineering cost estimation, including an upper cabinet. The upper cabinet has a glass door at the front end, with glass inside the door and a handle at the front end. The lower end of the left glass door has three drawers, and the lower end of the right glass door has a middle cabinet. The lower ends of the middle cabinet and drawers have a large cabinet. The upper cabinet contains horizontal and vertical panels, which are cross-fixed. The vertical panels include pulleys and thin plates. The horizontal and vertical panels are movably connected by pulleys at the top of the vertical panels. By designing multiple cabinets and drawers, the storage of items needed in the office is solved. The multiple horizontal and vertical panels divide the space inside the cabinet into multiple compartments. Since invoices and budget notebooks are generally small, their size can be adjusted by the thin plates on the horizontal panels and the pulleys on the vertical panels. The different compartments allow for classification.

[0004] Although the above structure incorporates multiple cabinets and drawers to effectively store office supplies, the horizontal panel in this patent lacks a structure for securing documents or drawings. This causes the box to easily scatter when impacted, hindering the quick retrieval of documents. Therefore, a storage box for construction cost estimates with a securing function is needed to solve the aforementioned technical problem.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the background technology of this disclosure and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] In view of at least one of the above-mentioned technical problems, this disclosure provides a tool storage box for construction engineering cost estimation, which aims to solve the problems existing in the prior art.

[0007] According to one aspect of this disclosure, a tool storage box for construction engineering cost estimation is provided, comprising a main storage box and a first side box, a second side box, a third side box, and a fourth side box that are movably installed in the main storage box from top to bottom; the main storage box includes a main body, casters installed at the bottom of the main body, a push-pull rod installed at the front end of the main body, and a first limiting component and a second limiting component installed on the right side of the main body; the first side box, the second side box, the third side box, and the fourth side box are all movably disposed on the right side of the main body; the first limiting component is movably installed between the first side box and the second side box; the second limiting component is movably installed between the third side box and the fourth side box; the first limiting component and the second limiting component have the same structure.

[0008] Furthermore, a connecting post is fixed to the front end of the push-pull rod, and side protruding shafts extend from both ends of the connecting post. A storage slot is also provided on the front side of the main housing, and a symmetrical movable slot is provided on the left side of the main housing. A movable protruding post is also movably installed in the storage slot. A return spring is also provided in the main housing to abut against the movable protruding post. The return spring provides elastic force to drive the movable protruding post to automatically return to its original position.

[0009] Furthermore, a support mechanism is movably provided inside the storage slot, and an extension mechanism is rotatably installed on the main body. The support mechanism is located behind the movable protrusion, and the extension mechanism is rotatably installed on the left side of the main body.

[0010] Furthermore, the first limiting component includes a fixed stud connected to the right side of the main housing, a limiting baffle rotatably sleeved on the fixed stud, and a first nut threadedly sleeved on the fixed stud. The limiting baffle is in a vertical state and its two ends abut against the outer sides of the first side housing and the second side housing, respectively. The first nut abuts against the outer side of the limiting baffle.

[0011] Furthermore, the support mechanism includes a support plate, a support leg connected to the lower front end of the support plate, a telescopic leg movably installed at the lower end of the support leg, front slots symmetrically arranged on both sides of the front end of the support plate, and a limiting bolt movably passing through the front slot. The support leg and the telescopic leg are threadedly connected. The front slot is located directly behind the side convex shaft. The support plate, support leg, and telescopic leg are all movably arranged in the receiving groove, and the movable protrusion abuts against the front of the support plate.

[0012] Furthermore, the extension mechanism includes an extension plate rotatably mounted on the upper left side of the main housing, a limiting rod symmetrically and rotatably mounted at the center of both sides of the extension plate, a sliding bolt movably inserted into the movable groove, and a second nut threadedly fitted onto the sliding bolt. The free end of the limiting rod is rotatably fitted onto the sliding bolt, and the second nut abuts against the outside of the main housing to restrict the sliding bolt from moving up and down.

[0013] Furthermore, the third side box includes a side box body that is movably inserted into the main box body, a box handle located on the outside of the side box body, side slots opened on both sides of the side box body, and side long rods symmetrically fixed in the side slots.

[0014] Furthermore, the third side box also includes a connecting plate and a fixing assembly that is movably mounted on the connecting plate. The two ends of the connecting plate are movably sleeved on the side rod, and displacement grooves are symmetrically opened at both ends of the connecting plate. The connecting plate can move freely along the axial direction of the side rod.

[0015] Furthermore, the fixing assembly includes a positioning plate, a plurality of movable columns that are movably inserted downward through the positioning plate, and a pressure plate connected to the lower end of the movable columns. The movable columns are also movably inserted through a connecting plate, and a pressure spring is movably sleeved on the movable columns. The pressure spring abuts between the connecting plate and the pressure plate. An upper protrusion is also provided at the upper end of the movable column above the positioning plate.

[0016] Furthermore, the positioning plate is symmetrically provided with displacement blocks at both ends, and symmetrically provided with limiting slots at the bottom of the displacement blocks. The displacement blocks are movably locked in the displacement slots, and the limiting slots are also provided with rubber sleeves that fit against the outer wall of the side rod.

[0017] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0018] 1. The top surface of the main housing of the device in this application can be used for surveying, calculation and other work. The extension plate that extends and supports the outside of the main housing can also expand the usable area for workers, making it convenient to place tools and drawings. Moreover, after the work is completed, the extension plate can be stored and attached to the main housing for easy movement and transportation.

[0019] 2. The device of this application is also equipped with a support mechanism that provides support. When in use, it can be pulled out from the main box to provide seat support for the staff and reduce the fatigue of the staff. The support plate is supported on one side by a combination of support legs and telescopic legs, and on the other side by the main box, which provides good stability. After use, the support mechanism can be put back into the main box, which is convenient and practical.

[0020] 3. The third side box in the device of this application also has a fixing function. By using the movable fixing components in conjunction with the relative limiting of the connecting plate, the lower pressure plate can be adjusted to press down and fit tightly against the drawing documents, thereby fixing the drawing documents and preventing them from scattering during transportation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the storage box in this utility model;

[0022] Figure 2 This is a schematic diagram of the storage box in this utility model when it is unfolded;

[0023] Figure 3 This is a schematic diagram of the storage box in this utility model when it is unfolded from another direction;

[0024] Figure 4 for Figure 3 Enlarged diagram of section A in the middle;

[0025] Figure 5 for Figure 3 Enlarged schematic diagram of section B in the middle;

[0026] Figure 6 This is a schematic diagram of the structure of the third side box in this utility model;

[0027] Figure 7 This is a schematic diagram of the connection between the fixing component and the connecting plate in this utility model;

[0028] Figure 8 This is a schematic diagram of the fixing component in this utility model.

[0029] In the above figures, 1. Main storage box; 11. Main box body; 111. Storage slot; 112. Movable slot; 12. Casters; 13. Push-pull rod; 14. Movable protrusion; 15. First limiting component; 151. Limiting baffle; 152. Fixing stud; 153. First nut; 16. Second limiting component; 17. Connecting post; 171. Side protrusion shaft; 2. First side box; 3. Second side box; 4. Third side box; 41. Side box body; 411. Side slot; 42. Box handle; 43. Side... 44. Long rod; 44. Connecting plate; 441. Displacement slot; 45. Fixing component; 451. Positioning plate; 452. Displacement block; 4521. Limiting slot; 453. Movable column; 454. Lower pressure plate; 46. Lower pressure spring; 5. Fourth side box; 6. Support mechanism; 61. Support plate; 62. Support leg; 63. Telescopic leg; 64. Front slot; 65. Limiting bolt; 7. Extension mechanism; 71. Extension plate; 72. Limiting rod; 73. Sliding bolt; 74. Second nut. Detailed Implementation

[0030] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "vertical," "horizontal," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first," "second," etc., used in this application are used to distinguish the described objects and do not have any sequential or technical meaning. And the terms "connection" and "linkage," unless otherwise specified, include both direct and indirect connections (linkages).

[0031] This application provides a tool storage box for construction engineering cost estimation, which solves the problems existing in the prior art. In order to better understand the technical solution of this application, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0032] This example discloses a tool storage box for construction engineering cost estimation. See [link / reference] Figures 1 to 8The device includes a main storage box 1 and a first side box 2, a second side box 3, a third side box 4, and a fourth side box 5, which are movably installed inside the main storage box 1 from top to bottom. The main storage box 1 includes a main body 11, casters 12 installed at the bottom of the main body 11, a push-pull rod 13 installed at the front end of the main body 11, and a first limiting component 15 and a second limiting component 16 installed on the right side of the main body 11. The first side box 2, the second side box 3, the third side box 4, and the fourth side box 5 are all movably installed through the right side of the main body 11. The first limiting component 15 is movably installed between the first side box 2 and the second side box 3, and the second limiting component 16 is movably installed between the third side box 4 and the fourth side box 5. The first limiting component 15 and the second limiting component 16 have the same structure. A connecting post 17 is fixed to the front end of the push-pull rod 13. Side protruding shafts 171 extend from both ends of the connecting post 17. A storage slot 111 is provided on the front side of the main housing 11. A symmetrical movable slot 112 is provided on the left side of the main housing 11. A movable protruding post 14 is movably installed in the storage slot 111. A return spring is provided inside the main housing 11, abutting against the movable protruding post 14. The return spring provides elastic force to automatically reset the movable protruding post 14. A support mechanism 6 is movably installed in the storage slot 111. An extension mechanism 7 is rotatably installed on the main housing 11. The support mechanism 6 is located behind the movable protruding post 14, and the extension mechanism 7 is rotatably installed on the left side of the main housing 11. The first limiting component 15 includes a fixing stud 152 connected to the right side of the main housing 11, a limiting baffle 151 rotatably sleeved on the fixing stud 152, and a first nut 153 threadedly sleeved on the fixing stud 152. The limiting baffle 151 is in a vertical state and its two ends abut against the outside of the first side housing 2 and the second side housing 3 respectively. The first nut 153 abuts against the outside of the limiting baffle 151.

[0033] The support mechanism 6 includes a support plate 61, a support leg 62 connected to the lower front end of the support plate 61, a telescopic leg 63 movably installed at the lower end of the support leg 62, front slots 64 symmetrically arranged on both sides of the front end of the support plate 61, and a limiting bolt 65 movably passing through the front slots 64. The support leg 62 and the telescopic leg 63 are threadedly connected. The front slot 64 is located directly behind the side convex shaft 171. The support plate 61, the support leg 62, and the telescopic leg 63 are all movably arranged in the storage groove 111. The movable protrusion 14 abuts against the front of the support plate 61.

[0034] The extension mechanism 7 includes an extension plate 71 rotatably mounted on the upper left side of the main housing 11, a limiting rod 72 symmetrically and rotatably mounted at the center of both sides of the extension plate 71, a sliding bolt 73 movably inserted into the movable groove 112, and a second nut 74 threadedly fitted onto the sliding bolt 73. The free end of the limiting rod 72 is rotatably fitted onto the sliding bolt 73, and the second nut 74 abuts against the outside of the main housing 11 to restrict the up and down movement of the sliding bolt 73.

[0035] The third side box 4 includes a side box 41 that is movably inserted into the main box 11, a box handle 42 located on the outside of the side box 41, side slots 411 formed on both sides of the side box 41, and side long rods 43 symmetrically fixed in the side slots 411. The third side box 4 also includes a movable connecting plate 44 and a fixing component 45 that is movably inserted into the connecting plate 44. The two ends of the connecting plate 44 are movably sleeved on the side long rods 43. Displacement slots 441 are symmetrically formed at both ends of the connecting plate 44, and the connecting plate 44 can move freely along the axial direction of the side long rods 43. The fixing assembly 45 includes a positioning plate 451, multiple movable columns 453 that are movably inserted downwards on the positioning plate 451, and a pressure plate 454 connected to the lower end of the movable columns 453. The movable columns 453 are also movably inserted through a connecting plate 44. A pressure spring 46 is also movably sleeved on the movable column 453, and the pressure spring 46 abuts between the connecting plate 44 and the pressure plate 454. An upper protrusion is also provided at the upper end of the movable column 453 above the positioning plate 451. Displacement blocks 452 are symmetrically provided at both ends of the positioning plate 451. Limiting grooves 4521 are symmetrically provided at the bottom of the displacement blocks 452. The displacement blocks 452 are movably locked in the displacement grooves 441. A rubber sleeve is also provided in the limiting grooves 4521 and fits against the outer wall of the side rod 43.

[0036] Working principle: See Figures 1 to 8When implementing the device of this application, before conducting construction cost estimation work, the calculation and surveying tools used for the work can be classified and stored in the first side box 2 and the second side box 3, and the drawings, drafts and other documents needed can be placed in the fourth side box 5. When conducting construction cost estimation work, the storage boxes can be pulled to the designated working position by pulling the push rod 13 and using the casters 12, and then the device can be unfolded to perform calculations, surveys and other cost estimation work on the device. During unfolding, first loosen the second nuts 74 on both sides to allow the sliding bolt 73 to move within the movable groove 112. Then push the sliding bolt 73 upward, and the lower end of the limiting rod 72 moves and rotates with the sliding bolt 73. The moving limiting rod 72 drives the extension plate 71 to rotate upward until the extension plate 71 rotates to be level with the upper plane of the main box 11. Tighten the second nuts 74 to limit and fix the sliding bolt 73, thereby indirectly limiting and fixing the extension plate 71. Next, loosen the first nut 153 to allow the limiting baffle 151 to rotate from a vertical state to a horizontal state. Then tighten the first nut 153 to limit and fix the limiting baffle 151. At this time, the first side box 2 and the second side box 3 are unlimited and in an active state, and the staff can pull the corresponding side box to take out the tools needed. Then, operate the second limiting component 16 in the same way to cancel the limitation on the third side box 4 and the fourth side box 5, so that the fourth side box 5 can be pulled and the drawings and documents inside can be taken out. During the work process, staff can perform surveying, calculations and other work on the top surface of the main box 11. The extension plate 71, which extends and supports the outside of the main box 11, expands the usable area for staff and makes it easier to place tools and drawings.

[0037] To prevent fatigue from prolonged standing, the support mechanism 6 can be pulled out for support. Specifically, first press down on the movable protrusion 14, which releases the restriction on the support plate 61. Then, pull the support mechanism 6 horizontally outward along the storage groove 111. Since the length of the support plate 61 is greater than the distance between the side protrusion 171 and the front of the main housing 11, the support mechanism 6 is restricted when the front locking groove 64 engages with the side protrusion 171, although a portion of the support plate 61 remains within the storage groove 111. Next, tighten the limiting bolt 65 downwards, so that it fits against the front end of the side protrusion 171 and is fixed through the front locking groove 64, thus restricting and fixing the support plate 61 and the support leg 62. Then, tighten the telescopic leg 63 to extend it downwards until its lower end touches the ground. Workers can then sit on the support plate 61 to work, reducing fatigue and improving work comfort. The telescopic leg 63, together with the support leg 62, can support one side of the support plate 61. Under the limitation of the storage slot 111, the main box 11 can support the other side of the support plate 61. The two work together to provide stability and prevent the device from tipping over when the staff is working in a seated position.

[0038] After the work is completed, the corresponding tools can be stored in the first side box 2 and the second side box 3, and the first limiting component 15 can be operated again to limit and fix the first side box 2 and the second side box 3; loosen the second nut 74 to drive the extension plate 71 to rotate downward and reset; rotate the telescopic leg 63 to retract into the support leg 62, and unscrew the limiting bolt 65 to release the limitation on the support mechanism 6, and then push the support mechanism 6 to reset into the storage groove 111. When the support mechanism 6 is fully stored in the storage groove 111, the movable protrusion 14 is re-limited on the front side of the support plate 61 under the action of the bottom reset spring. Finally, the drawings and documents are classified and stored in the third side box 4 and the fourth side box 5, and the third side box 4 and the fourth side box 5 are limited and fixed by the second limiting component 16; when storing, useful drawings and documents are stored in the third side box 4, and useless materials are stored in the fourth side box 5.

[0039] Since collisions are inevitable during transportation or movement of the storage boxes, the useful drawings and documents inside the third side box 4 are easily affected. Therefore, to prevent the drawings and documents from becoming scattered, the third side box 4 can be used to fix the drawings and documents. During operation, first, neatly stack the drawings and documents in the center of the side box 41. Then, pull the handles on both sides of the positioning plate 451, causing the positioning plate 451 to move upward to a certain height. Under the limit of the protrusion at the upper end of the movable column 453, the positioning plate 451 drives the movable column 453 to move upward, and the lower pressure plate 454 moves synchronously with the movable column 453. Then, while maintaining the pulled state, the fixing component 45 is moved horizontally. Under the limit of the connecting plate 44 and the side rod 43, the fixing component 45 moves horizontally along the side rod 43 until the lower pressure plate 454 moves to the position of the drawing. Release the handle above the center of the paper document; due to the relative movable design between the positioning plate 451 and the movable column 453, the positioning plate 451 moves down under gravity and re-attaches to the connecting plate 44. The displacement blocks 452 at both ends re-engage into the displacement grooves 441, and the limiting grooves 4521 re-attach to the outer wall of the side rod 43. Since the limiting grooves 4521 are also surrounded by rubber sleeves that contact the side rod 43, the high coefficient of friction of the rubber sleeves restricts the lateral movement of the positioning plate 451 along the side rod 43, thereby restricting the lateral movement of the fixing assembly 45. Meanwhile, the lower pressure plate 454 moves downward under the elastic force of the lower pressure spring 46 and tightly adheres to the drawing document, thus fixing the drawing document and preventing it from scattering during transportation. To ensure the fixing effect, the lower pressure spring 46 uses a spring with a high elastic coefficient, allowing the lower pressure plate 454 to exert a certain pressure on the drawing document. The height of the front and rear sides of the side box 41 is always higher than the height of the upper end of the movable column 453, so as to avoid the height of the movable column 453 interfering with the normal opening and closing of the third side box 4.

[0040] Although some preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0041] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from the spirit and scope of the invention. Therefore, if these modifications and variations of this invention fall within the scope of the claims of this application and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A tool storage box for construction work cost, comprising a storage main box (1), characterized in that, It also includes a first side box (2), a second side box (3), a third side box (4) and a fourth side box (5) that are installed in the main storage box (1) from top to bottom. The main storage box (1) includes a main box body (11), casters (12) installed at the bottom of the main box body (11), and a push-pull rod (13) installed at the front end of the main box body (11). The first side box (2), the second side box (3), the third side box (4), and the fourth side box (5) are all movably installed on the right side of the main box body (11). A connecting post (17) is also fixed on the front end of the push-pull rod (13), and side protruding shafts (171) are extended at both ends of the connecting post (17). The main box (11) has a storage slot (111) on the front side and a symmetrical movable slot (112) on the left side. A movable support mechanism (6) is provided in the storage slot (111), and an extension mechanism (7) can be rotatably installed on the main box (11). The support mechanism (6) includes a support plate (61), a support leg (62) connected to the lower front end of the support plate (61), a telescopic leg (63) movably installed at the lower end of the support leg (62), front slots (64) symmetrically arranged on both sides of the front end of the support plate (61), and a limiting bolt (65) movably passing through the front slot (64). The support leg (62) and the telescopic leg (63) are threaded together, and the front slot (64) is located directly behind the side convex shaft (171). The third side box (4) includes a side box (41) that is movably inserted into the main box (11), side slots (411) opened on both sides of the side box (41), and side long rods (43) symmetrically fixed in the side slots (411). The third side box (4) also includes a connecting plate (44) and a fixing component (45) that is movably mounted on the connecting plate (44). The two ends of the connecting plate (44) are movably mounted on the side rod (43), and displacement slots (441) are symmetrically opened at both ends of the connecting plate (44).

2. The tool storage box for construction cost estimation according to claim 1, characterized in that, The extension mechanism (7) includes an extension plate (71) rotatably mounted on the upper left side of the main housing (11), a limiting rod (72) symmetrically and rotatably mounted at the center of both sides of the extension plate (71), a sliding bolt (73) movably inserted in the movable groove (112), and a second nut (74) threadedly fitted on the sliding bolt (73). The free end of the limiting rod (72) is rotatably fitted on the sliding bolt (73).

3. The tool storage box for construction cost estimation according to claim 1, characterized in that, The fixing component (45) includes a positioning plate (451), a plurality of movable columns (453) that are movably inserted downward on the positioning plate (451), and a pressure plate (454) connected to the lower end of the movable columns (453). The movable columns (453) are also movably inserted through a connecting plate (44). A pressure spring (46) is also sleeved on the movable columns (453), and the pressure spring (46) abuts between the connecting plate (44) and the pressure plate (454).

4. The tool storage box for construction cost estimation according to claim 3, characterized in that, The positioning plate (451) is also symmetrically provided with displacement blocks (452) at both ends. A limiting slot (4521) is also symmetrically provided at the bottom of the displacement block (452). The displacement block (452) is movably locked in the displacement slot (441), and the limiting slot (4521) is attached to the outer wall of the side rod (43).

Images