A construction engineering auditing budget report arrangement device

Abstract

The utility model discloses a kind of construction engineering auditing budget report collating device, belong to report collating technical field, including base, the base top can be vertically rotated around its own axis and install cylinder, multiple receiving shells for receiving budget report are arranged at the circumference direction interval outside the cylinder, adjusting component for adjusting report receiving height is equipped in each receiving shell, and lifting search component for assisting report search is equipped outside;Therefore, can be lifted search component with the aid of the arc-shaped protruding structure of arc-shaped track, so that target receiving shell is automatically lifted when cylinder rotates, forms height difference with other receiving shells, accurately positions target, substantially reduces report search time consumption, avoids to check mistake, effectively speeds up budget auditing, cost analysis and other core work progress, improves overall work efficiency.

Description

Technical Field

[0001] This utility model relates to a device for compiling budget reports for construction engineering audits, belonging to the field of report compilation technology. Background Technology

[0002] In the full life-cycle management of construction projects, reviewing budget reports is a core element in cost control and financial planning. Such reporting systems collect key cost data for each stage of construction, covering labor costs, procurement costs of main and auxiliary materials, rental and maintenance costs of large equipment, expenses for temporary facility construction, and technical service and supervision fees. The completeness, accuracy, and accessibility of this data directly determine the scientific nature of project investment decisions, the effectiveness of cost control, and the rationality of fund utilization. It is a crucial basis for ensuring the project progresses according to plan, mitigating the risk of cost overruns, and achieving project profitability goals.

[0003] Currently, the industry still generally adopts a traditional, extensive management model for organizing budget reports for construction projects. Staff often simply stack printed reports on their desks or store them haphazardly in the fixed compartments of ordinary filing cabinets. In some cases, reports are even temporarily piled up on storage shelves or the floor, lacking unified storage and quick access.

[0004] This traditional method of data collection has certain drawbacks: when retrieving reports for specific projects, construction phases, or cost categories, staff must sift through stacks of reports page by page, checking each one individually. This not only consumes a significant amount of time but also easily leads to report confusion or errors due to visual fatigue, severely slowing down core tasks such as budget review and cost analysis. Therefore, it needs to be improved. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a construction project audit budget report processing device to solve the problems mentioned in the background art.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a construction engineering audit budget report sorting device, including a base, a cylinder that can be vertically rotated around its own axis at the top of the base, and multiple storage shells for storing budget reports are spaced apart along the circumferential direction on the outer side of the cylinder.

[0007] Each of the aforementioned storage shells is equipped with an adjustment component for adjusting the storage height of the reports, and an external lifting and searching component to assist in finding the reports.

[0008] The lifting and searching component includes a guide rod, a rectangular sleeve, and a return spring; multiple sets of mounting plates are fixed at intervals along the circumferential direction on the outer wall of the cylinder, each set of mounting plates is distributed vertically along the height of the cylinder, and a guide rod is fixed vertically between each set of upper and lower mounting plates;

[0009] A rectangular sleeve is slidably fitted on the guide rod, and the outer wall of the rectangular sleeve is fixed to the corresponding storage shell. The reset spring is fitted on the guide rod and located at the top of the rectangular sleeve. An arc-shaped track is fixed at the top of the base. The top of the arc-shaped track has an arc-shaped protrusion, which is used to push the storage shell to move upward along the guide rod to raise its height when the storage shell rotates with the cylinder.

[0010] Preferably, each of the storage shells is fixedly equipped with rollers at its bottom, and the bottom of the rollers contacts the top of the arc-shaped track to reduce friction between the storage shell and the arc-shaped track, making the storage shell move more smoothly along the arc-shaped track.

[0011] Preferably, the outer wall of the cylinder is provided with a plurality of first guide grooves along its height direction, and the first guide grooves correspond one-to-one with a plurality of rectangular sleeves. A guide plate is slidably installed inside each of the first guide grooves. The end of the guide plate away from the first guide groove is fixedly connected to the outer wall of the corresponding rectangular sleeve, which is used to limit the sliding direction of the rectangular sleeve along the guide rod and prevent the rectangular sleeve from rotating with the guide rod.

[0012] Preferably, the adjusting assembly includes a threaded post, a nut, and a lifting plate. A rectangular hole is provided through one outer wall of the storage shell. A lifting plate for supporting the report is provided inside the storage shell. The threaded post is fixedly installed on the outer wall of the lifting plate near the rectangular hole. The end of the threaded post away from the lifting plate passes through the rectangular hole and extends to the outside of the storage shell. The portion of the threaded post extending to the outside of the storage shell is threaded with a nut for locking the position of the lifting plate.

[0013] Preferably, the inner side walls of the storage shell are provided with second guide grooves along their height direction. Guide blocks are slidably installed inside the second guide grooves. The end of the guide block away from the second guide groove is fixedly connected to both ends of the lifting plate to guide the sliding direction of the lifting plate and ensure that the lifting plate always moves smoothly along the height direction of the storage shell.

[0014] Preferably, the top of each storage shell is provided with a retrieval notch, the width of which is not less than 2cm, to facilitate staff to retrieve reports from inside the storage shell.

[0015] Preferably, a rectangular observation hole is provided on the outer wall of the storage shell away from the rectangular hole. A transparent plastic plate is fixedly embedded inside the rectangular observation hole. The size of the transparent plastic plate is adapted to the size of the rectangular observation hole, so that the staff can observe the identification information of the internal report without opening the storage shell, thereby improving the efficiency of report retrieval.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. By using the arc-shaped protrusion structure of the arc-shaped track to lift the target storage shell as the cylinder rotates, a height difference is formed with other storage shells, allowing for precise target positioning;

[0018] 2. Firstly, the rectangular observation hole, combined with the transparent plastic plate, allows staff to quickly view the internal report labels and perform preliminary screening of target reports without opening the storage shell;

[0019] 3. Thirdly, it facilitates quick and easy report retrieval. The combination of these three features significantly reduces the time spent searching for reports, avoids errors in retrieval, effectively accelerates the progress of core tasks such as budget review and cost analysis, and improves overall work efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the base, cylinder, storage shell, and arc-shaped track structure of this utility model;

[0023] Figure 3 This is a bottom view of the storage shell structure of this utility model;

[0024] Figure 4 This is a cross-sectional view of the storage shell of this utility model;

[0025] Figure 5 This is a schematic diagram of the threaded column, nut, and lifting plate of this utility model.

[0026] In the diagram: 1. Base; 2. Cylinder; 3. Storage shell; 4. Mounting plate; 5. Guide rod; 6. Rectangular sleeve; 7. First guide groove; 8. Guide plate; 9. Arc track; 10. Roller; 11. Return spring; 12. Rectangular hole; 13. Threaded post; 14. Nut; 15. Lifting plate; 16. Second guide groove; 17. Guide block; 18. Retrieval notch; 19. Rectangular hole. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1-5 This utility model provides a technical solution: a construction project audit budget report sorting device, including a base 1, a cylinder 2 that can be vertically rotated around its own axis on the top of the base 1, and multiple storage shells 3 for storing budget reports are arranged at intervals along the circumferential direction on the outer side of the cylinder 2.

[0029] Each storage case 3 has an adjustment component inside to adjust the height of the report storage, and an external lifting and searching component to assist in finding the report.

[0030] The lifting and searching component includes a guide rod 5, a rectangular sleeve 6, and a return spring 11; multiple sets of mounting plates 4 are fixed at intervals along the circumferential direction on the outer wall of the cylinder 2, and each set of mounting plates 4 is distributed up and down along the height direction of the cylinder 2, with a guide rod 5 vertically fixed between each set of upper and lower mounting plates 4;

[0031] A rectangular sleeve 6 is slidably fitted on the guide rod 5. The outer wall of the rectangular sleeve 6 is fixed to the corresponding storage shell 3. The return spring 11 is fitted on the guide rod 5 and located at the top of the rectangular sleeve 6. An arc-shaped track 9 is fixed at the top of the base 1. The top of the arc-shaped track 9 has an arc-shaped protrusion, which is used to push the storage shell 3 to move upward along the guide rod 5 to raise its height when the storage shell 3 rotates with the cylinder 2.

[0032] Specifically, when staff need to find a report, they can manually rotate cylinder 2. Cylinder 2 rotates around the axis of base 1, which drives the storage shell 3, which is connected to the rectangular sleeve 6 via mounting plate 4 and guide rod 5, to move in a circular motion.

[0033] At this time, the roller 10 at the bottom of the storage shell 3 keeps in contact with the top surface of the arc track 9 on the base 1 and rolls. When the roller 10 rolls to the arc protrusion section of the arc track 9, the protrusion structure generates an upward supporting force on the roller, pushing the storage shell 3 to move upward, and then driving the rectangular sleeve 6 fixedly connected to the storage shell to slide vertically upward along the guide rod 5. The return spring 11 sleeved on the guide rod 5 is squeezed by the rectangular sleeve 6 and contracts to store force.

[0034] When the roller 10 rolls away from the arc-shaped protrusion, the stored force of the return spring 11 is converted into a downward thrust, which pushes the rectangular sleeve 6 to return and slide down along the guide rod 5, causing the storage shell 3 to fall back to the initial height.

[0035] This transmission process enables the storage shell 3 to "lift and automatically reset as it rotates". When lifted, it creates a height difference between the target storage shell and other storage shells, making it easier for staff to quickly identify and retrieve reports. After resetting, it reduces the overall space occupied by the device and avoids collisions between multiple storage shells, improving the convenience of report retrieval and the stability of the device.

[0036] Please see Figure 2 In the embodiments of this utility model, rollers 10 are fixedly installed on the bottom of the storage shell 3. The bottom of the rollers 10 contacts the top of the arc track 9 to reduce the friction between the storage shell 3 and the arc track 9, so that the storage shell 3 can move more smoothly along the arc track 9.

[0037] Specifically, during the circular motion of the storage shell 3 along with the cylinder 2, the wheel body of the roller 10 is in continuous contact with the top surface of the arc track 9, and the wheel body rotates around its own axis, converting the sliding friction between the storage shell 3 and the arc track 9 into the rolling friction of the roller.

[0038] This transmission method significantly reduces the frictional resistance between the two, avoiding problems such as jamming or stalling of the storage shell 3 due to excessive friction. It ensures that the storage shell can rotate smoothly with the cylinder 2, while reducing the wear of the rollers and tracks, extending the service life of the components, ensuring the transmission stability of the lifting and searching component, and preventing the report from tipping over or the storage shell from shifting due to jamming.

[0039] Please see Figure 2 and Figure 4 In an embodiment of this utility model, the outer wall of the cylinder 2 is provided with a plurality of first guide grooves 7 along its height direction, and the first guide grooves 7 correspond one-to-one with a plurality of rectangular sleeves 6. A guide plate 8 is slidably installed inside each of the first guide grooves 7. The end of the guide plate 8 away from the first guide groove 7 is fixedly connected to the outer wall of the corresponding rectangular sleeve 6, which is used to limit the rectangular sleeve 6 along the sliding direction of the guide rod 5 and prevent the rectangular sleeve 6 from rotating with the guide rod 5.

[0040] Specifically, when the rectangular sleeve 6 slides vertically up and down along the guide rod 5, the guide plate 8, which is fixed to the rectangular sleeve 6, slides up and down synchronously along the cavity of the first guide groove 7. The groove wall of the first guide groove 7 forms a physical limit on the left and right and front and back rotation of the guide plate 8, thereby restricting the circumferential rotation of the rectangular sleeve 6 around the guide rod 5.

[0041] This transmission process ensures that the rectangular sleeve 6 always slides smoothly along the axis of the guide rod 5, preventing the storage shell 3 from tilting, the report from falling over inside the shell, or the retrieval notch 18 from shifting due to the rotation of the rectangular sleeve. This ensures the stability of the storage shell's storage posture and prevents additional wear between the guide rod 5 and the rectangular sleeve 6 due to rotation, thus improving the accuracy of the component fit.

[0042] Please see Figure 4 and Figure 5 In an embodiment of this utility model, the adjustment component includes a threaded post 13, a nut 14, and a lifting plate 15. A rectangular hole 12 is provided through one side of the outer wall of the storage shell 3. The interior of the storage shell 3 is provided with a lifting plate 15 for supporting the report. A threaded post 13 is fixedly installed on the outer wall of the lifting plate 15 near the rectangular hole 12. The end of the threaded post 13 away from the lifting plate 15 passes through the rectangular hole 12 and extends to the outside of the storage shell 3. The part of the threaded post 13 extending to the outside of the storage shell 3 is threaded with a nut 14 for locking the position of the lifting plate 15.

[0043] Specifically, by adjusting the lifting plate 15, physical documents of different heights can be placed to prevent shorter documents from being placed directly into the storage shell 3 and unable to be retrieved through the retrieval notch 18.

[0044] When storing short-sized reports, first loosen the nut 14 clockwise to separate the nut from the outer wall of the storage shell 3 and release the lock on the threaded post 13;

[0045] Then, manually push the threaded post 13 upward along the vertical direction of the rectangular hole 12. The threaded post 13 drives the fixedly connected lifting plate 15 to move upward synchronously inside the storage shell 3 until the lifting plate 15 is adjusted to the appropriate position. Finally, tighten the nut 14 counterclockwise so that the nut fits against the outer wall of the storage shell and is pressed tightly. The position of the threaded post 13 is locked by friction, thereby fixing the lifting plate 15.

[0046] This transmission process allows for flexible adjustment of the lifting plate height, solving the problem that short reports are difficult to retrieve through the access notch after being placed directly into the bottom of the storage case. It also adapts to the storage needs of reports of different heights, avoiding stacking chaos or damage during retrieval due to insufficient height, and improving storage flexibility.

[0047] Please see Figure 4 In the embodiment of this utility model, the inner two side walls of the storage shell 3 are provided with second guide grooves 16 along their height direction. Guide blocks 17 are slidably installed inside the second guide grooves 16. The end of the guide block 17 away from the second guide groove 16 is fixedly connected to both ends of the lifting plate 15 to guide the sliding direction of the lifting plate 15 and ensure that the lifting plate 15 always moves smoothly along the height direction of the storage shell 3.

[0048] Specifically, when the lifting plate 15 moves up and down with the threaded column 13, the guide blocks 17 at both ends of the lifting plate slide synchronously along the corresponding second guide groove 16 cavity. The groove wall of the second guide groove 16 restricts the left and right offset and tilt of the guide block 17, thereby constraining the movement trajectory of the lifting plate 15.

[0049] This transmission process ensures that the lifting plate 15 always remains horizontal and moves vertically, avoiding the reports from being tilted or unevenly stacked in the storage shell 3 due to the tilt of the lifting plate, or the difficulty in adjustment caused by the lifting plate getting stuck. At the same time, it prevents wear caused by direct friction between the lifting plate and the inner wall of the storage shell, ensuring the smoothness of the lifting adjustment action and the neatness of the report storage.

[0050] Please see Figure 1 and Figure 3 In the embodiments of this utility model, the top of the storage shell 3 is provided with a retrieval notch 18, the width of which is not less than 2cm, to facilitate staff to grab reports from inside the storage shell 3.

[0051] Specifically, in actual operation, when staff need to take out the report from the storage shell 3, since the report is stacked vertically inside the storage shell, its top is flush with or slightly lower than the edge of the top opening of the storage shell.

[0052] At this point, the retrieval notch 18 at the top can directly expose the edge area at the top of the report, and the staff's fingers, especially the index finger and thumb, can easily be inserted into the notch to accurately pinch the corner at the top of the report.

[0053] With a width of 2cm or more, the design is perfectly suited to the size of an adult's finger, preventing the finger from being too narrow to reach or slipping when gripping. Compared to a completely closed top of the storage case, the 18-slot design eliminates the need for staff to open the case or tilt it beforehand. The grabbing action can be completed directly through the slot, reducing the number of steps required to retrieve the report and preventing the reports from scattering or becoming disorganized when tilted.

[0054] Please see Figure 1 In an embodiment of this utility model, a rectangular observation hole 19 is provided on the outer wall of the storage shell 3 at a position away from the rectangular hole 12. A transparent plastic plate is fixedly embedded inside the rectangular observation hole 19. The size of the transparent plastic plate is adapted to the size of the rectangular observation hole 19, so that the staff can observe the identification information of the internal report without opening the storage shell, thereby improving the efficiency of report retrieval.

[0055] Specifically, when staff are looking up reports, they do not need to open the storage shell 3. They only need to rotate the cylinder 2 to make the storage shell 3 move in a circular motion. At the same time, they can directly observe the labels of the reports inside the storage shell, such as project name, construction stage, cost category, etc., through the transparent plastic plate inside the rectangular observation hole 19.

[0056] Once the target report is identified through the transparent plastic plate, stop rotating the cylinder. Lift the corresponding storage case by raising the search component, and then retrieve the report through the retrieval notch 18. This process eliminates the need to open each storage case one by one to find the report, avoiding dust contamination, edge wear, or stacking disorder caused by frequent opening and closing of the report. At the same time, it enables rapid visual recognition of report labels, greatly shortens the search time, and improves the efficiency of retrieving budget reports.

[0057] The workflow of this embodiment is as follows:

[0058] Preliminary storage preparation: According to the type of the construction project audit budget report, such as project name, construction stage, cost category, etc., the staff will put the different types of reports into the storage shells 3 distributed on the outer circumference of the cylinder 2 respectively;

[0059] If the report size is short, first loosen the nut 14 on the outside of the storage shell 3 clockwise to release the lock on the threaded post 13. Manually push the threaded post 13 vertically upward along the rectangular hole 12, causing the lifting plate 15 inside the storage shell 3 to rise synchronously. During this process, the guide blocks 17 at both ends of the lifting plate 15 slide smoothly along the second guide groove 16 until the lifting plate 15 is adjusted to the appropriate position. Then tighten the nut 14 counterclockwise to lock the position of the lifting plate 15 and complete the report classification and storage.

[0060] Report retrieval operation: When a specific report needs to be retrieved, the staff manually rotates the cylinder 2 at the top of the base 1. The cylinder 2 rotates around its own axis, causing the storage shell 3, which is connected to the rectangular sleeve 6 via the mounting plate 4 and guide rod 5, to move synchronously. During this process, the staff can directly observe the identification information of the report inside the shell through the transparent plastic plate inside the rectangular observation hole 19 on the outer wall of the storage shell 3, and can perform preliminary screening without opening the storage shell.

[0061] Target storage shell lifting: As cylinder 2 continues to rotate, when the target report is observed in storage shell 3, cylinder 2 continues to rotate, causing the roller 10 at the bottom of storage shell 3 to gradually contact the arc-shaped protrusion of the arc-shaped track 9. Under the supporting force of the protrusion, storage shell 3 drives rectangular sleeve 6 to slide vertically upward along guide rod 5. At the same time, guide plate 8 on the outside of rectangular sleeve 6 slides synchronously along the first guide groove 7 to prevent rectangular sleeve 6 from rotating. During this period, return spring 11 is compressed and stored. When roller 10 rolls to the highest point of the arc-shaped protrusion, storage shell 3 is lifted to the highest position, forming a significant height difference with other storage shells, which facilitates accurate positioning by the staff.

[0062] Report Retrieval and Reset: The operator uses the retrieval notch 18 (at least 2cm wide) at the top of the storage shell 3 to reach in, pinch the top corner of the target report, and smoothly pull the report out of the storage shell 3. After retrieving the report, continue rotating the cylinder 2, causing the roller 10 at the bottom of the storage shell 3 to gradually move away from the arc-shaped protrusion of the arc-shaped track 9. At this point, the reset spring 11 releases its stored force, pushing the rectangular sleeve 6 to slide vertically downwards along the guide rod 5, causing the storage shell 3 to fall back to its initial height, completing one report retrieval operation. If other reports need to be retrieved subsequently, steps 2-4 can be repeated.

[0063] 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 device for compiling and processing budget reports for construction projects, characterized in that, Includes a base (1), the top of which can be vertically rotated around its own axis to install a cylinder (2), and the outer side of the cylinder (2) is provided with multiple storage shells (3) for storing budget reports at intervals along the circumferential direction. Each of the storage shells (3) is provided with an adjustment component for adjusting the storage height of the report, and an external lifting and searching component for assisting in finding the report; The lifting and searching component includes a guide rod (5), a rectangular sleeve (6), and a reset spring (11); multiple sets of mounting plates (4) are fixed at intervals along the circumferential direction on the outer wall of the cylinder (2), and each set of mounting plates (4) is distributed up and down along the height direction of the cylinder (2), with a guide rod (5) vertically fixed between each set of upper and lower mounting plates (4). A rectangular sleeve (6) is slidably fitted on the guide rod (5). The outer wall of the rectangular sleeve (6) is fixed to the corresponding storage shell (3). The reset spring (11) is fitted on the guide rod (5) and located on the top of the rectangular sleeve (6). An arc-shaped track (9) is fixed on the top of the base (1). The top of the arc-shaped track (9) is arc-shaped and protruding. When the storage shell (3) rotates with the cylinder (2), it pushes the storage shell (3) to move upward along the guide rod (5) to raise its height.

2. The construction project budget report processing device according to claim 1, characterized in that, Each of the storage shells (3) has a roller (10) fixedly installed at its bottom. The bottom of the roller (10) contacts the top of the arc track (9) to reduce the friction between the storage shell (3) and the arc track (9) and make the storage shell (3) move more smoothly along the arc track (9).

3. The construction project budget report processing device according to claim 1, characterized in that, The outer wall of the cylinder (2) is provided with a plurality of first guide grooves (7) along its height direction, and the first guide grooves (7) correspond one-to-one with a plurality of rectangular sleeves (6). A guide plate (8) is slidably installed inside each of the first guide grooves (7). The end of the guide plate (8) away from the first guide groove (7) is fixedly connected to the outer wall of the corresponding rectangular sleeve (6) to limit the sliding direction of the rectangular sleeve (6) along the guide rod (5) and prevent the rectangular sleeve (6) from rotating with the guide rod (5).

4. The construction project budget report processing device according to claim 1, characterized in that, The adjustment assembly includes a threaded post (13), a nut (14), and a lifting plate (15). A rectangular hole (12) is provided through one outer wall of the storage shell (3). The lifting plate (15) for supporting the report is provided inside the storage shell (3). The threaded post (13) is fixedly installed on the outer wall of the lifting plate (15) near the rectangular hole (12). The end of the threaded post (13) away from the lifting plate (15) passes through the rectangular hole (12) and extends to the outside of the storage shell (3). The part of the threaded post (13) extending to the outside of the storage shell (3) is threaded with a nut (14) for locking the position of the lifting plate (15).

5. The construction project budget report processing device according to claim 1, characterized in that, The inner side walls of the storage shell (3) are provided with second guide grooves (16) along their height direction. Guide blocks (17) are slidably installed inside the second guide grooves (16). The end of the guide block (17) away from the second guide groove (16) is fixedly connected to both ends of the lifting plate (15) to guide the sliding direction of the lifting plate (15) and ensure that the lifting plate (15) always moves smoothly along the height direction of the storage shell (3).

6. The construction project budget report processing device according to claim 1, characterized in that, Each of the storage shells (3) has a retrieval notch (18) at the top, and the width of the retrieval notch (18) is not less than 2cm, which is used to facilitate staff to grab reports from inside the storage shell (3).

7. The construction project budget report processing device according to claim 1, characterized in that, A rectangular observation hole (19) is provided on the outer wall of the storage shell (3) away from the rectangular hole (12). A transparent plastic plate is fixedly embedded inside the rectangular observation hole (19). The size of the transparent plastic plate is adapted to the size of the rectangular observation hole (19) so that the staff can observe the identification information of the internal report without opening the storage shell, thereby improving the efficiency of report retrieval.

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