A portable drawing storage rack for engineering cost site investigation

Abstract

The utility model provides a portable drawing storage frame for engineering cost field reconnaissance relates to engineering surveying and mapping auxiliary equipment field, including storage box, the storage box is the rectangular box structure of front side concave, and the top of storage box is fixedly installed with the carrying handle, and the rear side inner wall bottom of storage box is hinged with four storage cylinders at equal distance, and the left and right side wall middle part of storage cylinder is hinged with control connecting rod symmetrically, and the front end of storage cylinder is nested with rubber plug, this portable drawing storage frame for engineering cost field reconnaissance is connected with the clearance cooperation of control connecting rod round hole through the connecting end post of storage cylinder, constructs the linkage adjusting structure of four storage cylinders, and the unfolding or folding of all storage cylinders can be completed simultaneously by pushing control connecting rod, need not operate one by one, and the preparation time before drawing taking and placing is greatly shortened, and the field reconnaissance efficiency is improved significantly, to solve the problem that drawing storage frame is poor in portability, and the classification preservation capacity is insufficient, leads to the problem that drawing integrity is difficult to preserve for a long time.

Description

Technical Field

[0001] This utility model relates to the field of engineering surveying auxiliary equipment technology, and in particular to a portable drawing storage rack for on-site engineering cost survey. Background Technology

[0002] In the crucial step of on-site surveying for engineering cost estimation, which is essential for the accuracy of project pricing, it is necessary to carry various drawings of different specifications, such as architectural construction drawings, structural construction drawings, and water and electricity installation drawings. During the survey, frequent review and detailed comparison of these drawings are commonplace. Existing on-site survey drawing storage racks have a fixed volume design, which is not very portable and cannot meet the needs of frequent travel to different work areas during on-site surveys. This increases the carrying burden on survey personnel. Furthermore, the lack of a targeted drawing classification and storage structure makes it easy for drawings of different specifications to be mixed up, leading to paper wrinkles, worn edges, and insufficient protection against dust, dew, and construction debris in the on-site environment. It is also difficult to ensure the clarity of the writing and the integrity of the paper in the long term. Utility Model Content

[0003] This utility model relates to a portable drawing storage rack for on-site engineering cost surveys, in order to solve the problems mentioned in the background art. The existing on-site survey drawing storage racks have a fixed volume design, poor portability, and are difficult to adapt to the mobile needs of frequent trips to the work site, increasing the burden on survey personnel. In addition, they lack a targeted drawing classification and storage structure, making it easy for drawings of different specifications to be mixed and wrinkled and worn. They also do not provide sufficient protection against dust, dew and construction debris on site, and it is difficult to ensure that the drawings are clear and complete for a long time.

[0004] This utility model provides a portable drawing storage rack for on-site survey of engineering costs, specifically including: a storage box; the storage box is a rectangular box structure with a concave front side, a carrying handle is fixedly installed on the top of the storage box, four storage cylinders are hinged at equal intervals on the bottom of the rear inner wall of the storage box, control linkages are symmetrically hinged at the middle of the left and right side walls of the storage cylinders, and rubber stoppers are nested at the front end of the storage cylinders.

[0005] Furthermore, an arc-shaped sliding guide groove is provided on the front side of the right side wall of the storage box, and a fixed connecting rod with the same arc is fixedly installed on the right side wall of the storage box at the top rear side of the sliding guide groove. The front end of the fixed connecting rod is threaded with a fixed butterfly nut.

[0006] Furthermore, four sets of hinge seats are installed at equal intervals on the bottom of the rear inner wall of the storage box, with two hinge seats symmetrically arranged on the left and right sides of each set. Hinged ends are fixedly installed on the rear outer wall of the storage tube, and the hinged ends are rotatably connected between each set of hinge seats.

[0007] Furthermore, the storage tube is a circular cylindrical structure with a concave front side. A cylindrical connecting end post is fixedly installed in the middle of the left and right outer walls of the storage tube. The connecting end post is rotatably connected to the control linkage. The right side of the rubber stopper cap nested in the front section of the storage tube is connected to the outer front wall of the storage tube.

[0008] Furthermore, the control link has a flat vertical structure, and four round holes are opened at equal intervals on the left and right side walls of the control link. Each round hole is connected to the connecting end post on the outer side wall of a different storage tube.

[0009] Furthermore, a control handle is fixedly installed on the upper side of the right side wall of the control linkage on the right side of the storage tube. The control handle is slidably connected in the sliding guide groove on the right side wall of the storage box. Through fixed connection holes are opened on the front and rear sides of the control handle. The fixed connection holes are slidably inserted into the fixed linkage on the right side of the storage box, and the front side wall is in contact with the rear side of the fixed butterfly nut.

[0010] This utility model provides a portable drawing storage rack for on-site surveys of engineering costs, which has the following beneficial effects:

[0011] 1. The recessed rectangular structure on the front of the storage box, combined with the folded storage tubes, creates a seamless and compact storage solution, significantly reducing the overall volume. Equipped with a carrying handle, it can be easily carried by a single person, perfectly meeting the needs of frequent relocation to the work site during site surveys. This effectively reduces the burden on personnel. The four storage tubes allow for the categorized rolling of different sizes of drawings, such as architectural and structural drawings, preventing wrinkles and edge wear caused by mixed storage. The rubber stoppers at the front of the storage tubes tightly seal the openings, isolating them from dust, dew, and construction debris, ensuring clear writing and paper integrity. This solves the problem of easily damaged drawings in traditional storage methods. The angle-locking structure, consisting of sliding guides, fixed connecting rods, and fixed wing nuts, precisely fixes the storage tubes in their folded position, preventing shaking and collisions during transport without the need for manual support, further enhancing carrying safety.

[0012] 2. The cylindrical structure of the storage tubes adapts to the rolling shape of drawings, minimizing bending stress and reducing the probability of wrinkles and creases. The clearance fit between the connecting end post and the control rod's circular hole creates a linkage adjustment structure for the four storage tubes. Pushing the control rod simultaneously unfolds or folds all the storage tubes, eliminating the need for individual operation. This significantly shortens preparation time before retrieving and placing drawings, greatly improving on-site survey efficiency. The control handle provides surveyors with precise force application points, and the arc-shaped sliding guide groove allows for smooth adjustment of the storage tubes, enhancing the convenience of retrieving and viewing drawings. The transition fit between the fixed connecting hole and the fixed rod, along with the butterfly nut design, enables tool-less locking of the control handle position, meeting the needs of rapid on-site operation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0014] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the right front side axial view structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the storage box of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall disassembled structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the disassembled structure of the storage tube and control linkage of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the storage box of this utility model;

[0021] Figure 6 This is a cross-sectional structural diagram of the storage tube of this utility model.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Storage box; 101. Carrying handle; 102. Sliding guide groove; 103. Fixing link; 10301. Fixing butterfly wing nut; 104. Hinge seat; 2. Storage tube; 201. Hinge end; 202. Connecting end post; 3. Rubber plug cap; 4. Control link; 401. Control handle; 402. Fixing connection hole. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Example 1: As shown in the attached document Figure 1 To be continued Figure 6 As shown:

[0026] This utility model provides a portable drawing storage rack for on-site surveying of engineering costs, comprising: a storage box 1, which is a rectangular box structure with a concave front side; a carrying handle 101 fixedly installed on the top of the storage box 1; four storage cylinders 2 are hinged at equal intervals to the bottom of the rear inner wall of the storage box 1; control linkages 4 are symmetrically hinged at the middle of the left and right side walls of the storage cylinders 2; rubber stoppers 3 are nested at the front ends of the storage cylinders 2; and an arc-shaped sliding guide is provided on the front side of the right side wall of the storage box 1. On the right side wall of the storage box 1, behind the top of the sliding guide groove 102, a fixed connecting rod 103 with the same curvature is fixedly installed. The front end of the fixed connecting rod 103 is threadedly connected to a fixed butterfly nut 10301. Four sets of hinge seats 104 are installed at equal intervals on the bottom of the rear inner wall of the storage box 1. Two hinge seats 104 are symmetrically arranged on the left and right sides of each set. A hinge end 201 is fixedly installed on the rear outer wall of the storage cylinder 2. The hinge end 201 is rotatably connected to each set of hinge seats 104. Specifically, the storage box 1 has a rectangular box structure with a concave front side, which can be folded together with the storage tube 2 to form a nested storage, greatly reducing the overall volume and improving portability. The carrying handle 101 is made of non-slip rubber, which is easy for one person to carry by hand, meeting the needs of frequent movement to and from the work site during on-site surveys and reducing the burden on personnel. The four storage tubes 2 can correspond to different specifications of drawings such as architectural construction drawings, structural construction drawings, and water and electricity installation drawings, so as to achieve classified rolling and storage, effectively avoiding the problems of wrinkles and edge wear caused by mixed storage of drawings. The rubber plug 3 can be nested to seal the front end of the storage tube 2, isolating the site from dust, dew and construction debris, ensuring the clarity of the writing on the drawings and the integrity of the paper. The sliding guide groove 102, the fixed connecting rod 103 and the fixed butterfly nut 10301 form an angle locking structure, which can accurately fix the storage posture of the storage tube 2, avoiding the shaking and collision of the storage tube 2 due to bumps during carrying, without the need for additional manual support, thus improving carrying safety.

[0027] The storage tube 2 is a circular cylindrical structure with a concave front side. Cylindrical connecting end posts 202 are fixedly installed in the middle of the left and right outer walls of the storage tube 2. The connecting end posts 202 are rotatably connected to the control rod 4. The rubber stopper 3 nested at the front of the storage tube 2 is connected to the right side of the front outer wall of the storage tube 2. The control rod 4 is a flat, vertical structure. Four circular holes are evenly spaced on the left and right side walls of the control rod 4. Each circular hole connects to a different connecting end post 202 on the outer wall of the storage tube 2. Specifically, the circular cylindrical structure of the storage tube 2 adapts to the rolled-up shape of the drawings. Compared to flat storage, it minimizes bending stress on the drawings and significantly reduces the probability of wrinkles and creases. 02 and the control linkage 4 are fitted with a clearance fit to form a linkage adjustment structure for the four storage cylinders 2. Pushing the control linkage 4 can simultaneously complete the unfolding or folding of all storage cylinders 2 without individual operation, shortening the preparation time before taking out and putting away drawings and greatly improving the efficiency of on-site investigation. The rubber stopper 3 is connected to the outer wall of the front end of the storage cylinder 2 to form a structure that carries the stopper with the cylinder, effectively preventing the stopper from being lost during frequent on-site taking out and putting away, ensuring that the storage cylinder 2 always has complete sealing protection capabilities, and avoiding exposure and damage to the drawings. The flat vertical structure of the control linkage 4 can fit tightly against the inner wall of the storage box 1, greatly reducing the space occupation rate and ensuring that the overall volume of the storage box 1 is compact after closing, without affecting the convenience of carrying by hand.

[0028] Among them, a control handle 401 is fixedly installed on the upper side of the right side wall of the control linkage 4 on the right side of the storage cylinder 2. The control handle 401 is slidably connected in the sliding guide groove 102 on the right side wall of the storage box 1. The control handle 401 has through fixed connection holes 402 on both the front and rear sides. The fixed connection holes 402 are slidably inserted into the fixed linkage 103 on the right side of the storage box 1, and the front side wall is in contact with the rear side of the fixed butterfly nut 10301. Specifically, the control handle 401 provides the surveyor with a precise force application point. By pushing the control handle 401 to slide smoothly along the arc-shaped sliding guide groove 102, it can be flexibly controlled. The unfolding and folding of the storage tube 2 improves the convenience of taking out and viewing drawings. The fixed connection hole 402 and the fixed connecting rod 103 adopt a transition fit. After adjustment, tightening the fixed butterfly nut 10301 can lock the position of the control handle 401 by the end face clamping force, thereby fixing the angle of the storage tube 2. No additional tools such as screwdrivers are needed throughout the process. The sliding fit between the control handle 401 and the sliding guide groove 102 can strictly limit the movement trajectory of the control connecting rod 4, avoiding left and right deviation and jamming during the rotation of the storage tube 2, ensuring a smooth adjustment process and improving the stability of the structure operation.

[0029] The specific usage and function of this embodiment are as follows:

[0030] When using this portable drawing storage rack for on-site engineering cost surveys, first loosen the fixing butterfly nut 10301 on the right side wall of the storage box 1, then push the control handle 401 to slide along the arc-shaped sliding guide groove 102. The control handle 401 drives the control linkage 4 connected to it to move synchronously. The control linkage 4 pulls the four storage cylinders 2 through the connecting end post 202, causing the storage cylinders 2 to rotate on the hinge seat 104 on the inner wall of the storage box 1 through the hinge end 201 on the rear side, thus synchronously unfolding from the concave structure on the front side of the storage box 1. Open the rubber stopper 3 nested at the front end of each storage tube 2, and take out the drawings of different specifications, such as architectural construction drawings, structural construction drawings, and water and electricity installation drawings, from the corresponding storage tube 2. After the survey is completed, put the rubber stopper 3 back on the storage tube 2, push the control handle 401 in the opposite direction, so that the storage tube 2 folds back into the concave structure of the storage box 1 to form a fitting storage. Finally, tighten the fixing butterfly nut 10301 to lock the storage state of the control handle 401. Carry it by hand through the carrying handle 101 on the top of the storage box 1 to complete the entire use and storage process.

[0031] Example 2:

[0032] Two sets of foldable shoulder strap buckles are symmetrically arranged on the left and right outer walls of the storage box 1. The buckles are hinged to the side wall of the storage box 1 via a pivot and can be flipped outward or folded inward to fit the side wall. They are paired with detachable widened cushioned shoulder straps. The two ends of the shoulder straps have buckles that match the buckles. In the folded state, the shoulder strap buckles fit the side wall of the storage box 1 without increasing the overall volume. When carrying heavy drawings, the buckles can be unfolded and the shoulder straps can be installed to switch to shoulder carrying mode, distributing the weight to the shoulders and avoiding wrist fatigue when carrying by hand. This mode is suitable for long-distance travel to and from the work site.

Claims

1. A portable drawing storage rack for on-site surveying of engineering costs, characterized in that, Includes a storage box (1); the storage box (1) is a rectangular box structure with a concave front side, a carrying handle (101) is fixedly installed on the top of the storage box (1), four storage tubes (2) are hinged at equal distances on the bottom of the rear inner wall of the storage box (1), control linkages (4) are symmetrically hinged at the middle of the left and right side walls of the storage tubes (2), and a rubber stopper (3) is nested at the front end of the storage tubes (2).

2. The portable drawing storage rack for on-site engineering cost surveys according to claim 1, characterized in that, The storage box (1) has an arc-shaped sliding guide groove (102) on the front side of the right side wall. A fixed connecting rod (103) with the same arc is fixedly installed on the right side wall of the storage box (1) at the top rear side of the sliding guide groove (102). The front end of the fixed connecting rod (103) is threaded with a fixed butterfly nut (10301).

3. A portable drawing storage rack for on-site engineering cost surveys according to claim 1, characterized in that, Four sets of hinge seats (104) are installed at equal intervals on the bottom of the inner rear wall of the storage box (1). Two hinge seats (104) are symmetrically arranged on the left and right sides of each set. A hinge end (201) is fixedly installed on the outer rear wall of the storage tube (2). The hinge end (201) is rotatably connected between each set of hinge seats (104).

4. A portable drawing storage rack for on-site engineering cost surveys according to claim 1, characterized in that, The storage tube (2) is a circular cylindrical structure with a concave front side. A cylindrical connecting end post (202) is fixedly installed in the middle of the left and right outer walls of the storage tube (2). The connecting end post (202) is rotatably connected to the control linkage (4). The rubber plug cap (3) nested in the front section of the storage tube (2) is connected to the right side of the front outer wall of the storage tube (2).

5. A portable drawing storage rack for on-site engineering cost surveys according to claim 1, characterized in that, The control link (4) is a flat vertical structure. Four round holes are opened at equal intervals on the left and right side walls of the control link (4). Each round hole is connected to the connecting end post (202) on the outer side wall of different storage tubes (2).

6. A portable drawing storage rack for on-site engineering cost surveys according to claim 1, characterized in that, A control handle (401) is fixedly installed on the upper side of the right side wall of the control linkage (4) on the right side of the storage tube (2). The control handle (401) is slidably connected in the sliding guide groove (102) on the right side wall of the storage box (1). Through fixed connection holes (402) are opened on the front and rear sides of the control handle (401). The fixed connection holes (402) are slidably inserted into the fixed linkage (103) on the right side of the storage box (1) and the front side wall is in contact with the rear side of the fixed butterfly nut (10301).

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