Drawing board for mechanical drawing

By designing a foldable mechanical drawing board, the problems of inconvenience in carrying and loss of traditional tools are solved, realizing convenient folding of the drawing board and convenient storage of tools, thus improving the convenience of the drawing process.

CN224060743UActive Publication Date: 2026-03-31ANHUI JINZHAI TECHNICIAN COLLEGE (ANHUI JINZHAI VOCATIONAL SCHOOL)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Traditional mechanical drafting tools are easily lost and inconvenient to carry, causing inconvenience to staff when drawing.

Method used

A mechanical drawing board is designed, comprising foldable first and second drawing boards, a tool storage cavity, a storage cavity, and a tool assembly. The drawing board can be folded and the tools can be conveniently stored through the cooperation of hinges, damping shafts, damping rods, and elastic hooks.

Benefits of technology

It enables the drawing board to be easily folded and carried, protecting the drawings and facilitating the storage and carrying of tools, reducing the risk of loss and improving the convenience of the drawing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a mechanical drawing board which comprises a first drawing board. One side of the first drawing board is rotationally connected with a second drawing board through a hinge, a storage cavity is formed in one side of the second drawing board, dovetail grooves are formed in the two sides of the inner cavity wall of the storage cavity respectively, a tool assembly is installed in the storage cavity, and inserting holes are formed in the two ends of the other side of the second drawing board respectively. Fixing holes are respectively formed in two sides of the second drawing board; the tool assembly comprises a dovetail block, the dovetail block is slidably connected into the dovetail groove, two sets of extension plates are fixedly connected to one side of the dovetail block, a storage plate is rotationally connected between the two sets of extension plates through damping shafts, and a first storage cavity and a second storage cavity are formed in one side of the storage plate. The first drawing board, the second drawing board, the tool assembly, the storage net bag and the L-shaped locking rod are matched with one another, so that drawing of workers in the later period and carrying in the later period are facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical drawing boards, specifically to a mechanical drawing board. Background Technology

[0002] Mechanical drawing is the discipline that uses drawings to accurately represent the structural shape, dimensions, working principle, and technical requirements of machinery. Drawings consist of graphics, symbols, text, and numbers, and are technical documents that express design intentions, manufacturing requirements, and facilitate the exchange of experience; they are often referred to as the language of engineering.

[0003] Currently, traditional mechanical drawing is done by hand by workers. When drawing, workers need various tools such as drawing boards, paper, tape, compasses, pencils, erasers, T-squares, set squares, and protractors. When drawing, workers first place the drawing board on the table, and then use tape to fix the paper to the drawing board, which makes it convenient for workers to draw later. After the drawing is finished, workers need to pack all kinds of tools, and then separate the paper and drawing board for easy carrying later.

[0004] After use, staff need to pack the tools in a stationery bag. During the subsequent carrying process, staff only need to carry the stationery bag, drawing board, and drawings. However, these three types of tools are usually stored separately, which not only causes inconvenience for staff but also makes them prone to loss, thus hindering their drawing work later. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a mechanical drawing board, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A mechanical drawing board includes a first drawing board; a second drawing board is rotatably connected to one side of the first drawing board via a hinge; a storage cavity is provided on one side of the second drawing board; dovetail grooves are respectively provided on both sides of the inner wall of the storage cavity; a tool assembly is installed in the storage cavity; insertion holes are respectively provided at both ends of the other side of the second drawing board; fixing holes are respectively provided on both sides of the second drawing board; the tool assembly includes a dovetail block; a dovetail block is slidably connected in the dovetail groove; an extension plate is fixedly connected to one side of the dovetail block; two sets of extension plates are provided; a storage plate is rotatably connected between the two sets of extension plates via a damping shaft; a first storage cavity and a second storage cavity are respectively provided on one side of the storage plate; a first intercepting net bag is fixedly connected in the first storage cavity; and a storage component is installed in the second storage cavity.

[0008] Furthermore, the tool assembly also includes a rectangular groove. Rectangular grooves are respectively provided at both ends of the top surface of the storage plate. A first damping rod is fixedly connected to the inner wall of the rectangular groove. A fixing rod is fixedly connected to one end of the first damping rod. One end of the fixing rod passes through the storage plate and is inserted into a fixing hole.

[0009] Furthermore, the tool assembly also includes a protrusion, which is fixedly connected to the center of the top surface of the storage plate. A connecting piece is rotatably connected to the surface of the protrusion, and a card hole is provided on one side of the connecting piece.

[0010] Furthermore, the storage component includes a rectangular sponge, and a rectangular sponge is fixedly connected inside the second storage cavity. One side of the rectangular sponge is respectively provided with a tape hole, a pen groove, an eraser groove, and a pencil sharpener groove.

[0011] Furthermore, a locking block is fixedly connected to the middle of the other side of the first drawing board, and a storage cavity is provided on the bottom surface of the first drawing board, with a storage net fixedly connected to the middle of the storage cavity.

[0012] Furthermore, rectangular blocks are fixedly connected to both sides of the inner wall of the storage cavity, a second damping rod is fixedly connected to one side of the rectangular block, an L-shaped locking rod is fixedly connected to one end of the second damping rod, one end of the L-shaped locking rod passes through the first drawing board and is inserted into the insertion hole, and elastic hook rods are fixedly connected to both sides of the inner wall of the storage cavity.

[0013] This invention provides a mechanical drawing board. Compared with the prior art, it has the following advantages:

[0014] 1. Through the cooperation of the second damping rod, the L-shaped locking rod and the elastic hook rod, when the staff is in use, the first drawing board and the second drawing board can be unfolded to facilitate the staff to draw on the first drawing board and the second drawing board. When the staff is not in use, the first drawing board and the second drawing board can be folded to facilitate the staff to carry them.

[0015] 2. The storage net inside the storage cavity allows staff to easily fold and store the completed drawings inside. Then, the first and second drawing boards can be folded and stored, thus protecting the drawings and preventing them from being contaminated or lost during transport.

[0016] 3. Through the cooperation of the first storage cavity and the first intercepting net bag in the tool assembly, it is convenient for staff to put tools such as triangle rulers and protractors into the interior for easy carrying later.

[0017] 4. By utilizing the rectangular sponge, tape hole, pen slot, eraser slot, and pencil sharpener slot in the storage components, it is convenient to carry tools such as tape, eraser, pencil sharpener, compass, and pencil later, which is convenient for later drafting needs.

[0018] 5. By sliding the dovetail block in the dovetail groove, the storage plate and the extension plate rotate. When in use, the storage plate can be pulled out from the storage cavity for easy use by staff. When not in use, it can be stored and fixed in the storage cavity for easy storage and carrying. Attached Figure Description

[0019] 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 these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of this utility model is shown;

[0021] Figure 2 This diagram shows another view of the overall structure of the present invention;

[0022] Figure 3 A schematic diagram of the overall bottom view of this utility model is shown;

[0023] Figure 4 This utility model is shown Figure 3 Enlarged structural diagram of region A in the middle;

[0024] Figure 5This shows a partial cross-sectional view of the second drawing board of this utility model;

[0025] Figure 6 A schematic diagram of the tool assembly structure of this utility model is shown;

[0026] Figure 7 This utility model is shown Figure 6 Enlarged structural diagram of region B in the middle;

[0027] The diagram shows: 1. First drawing board; 2. Second drawing board; 3. Storage cavity; 4. Dovetail groove; 5. Tool assembly; 51. Dovetail block; 52. Extension plate; 53. Storage plate; 54. First storage cavity; 55. Second storage cavity; 56. First intercepting net bag; 57. Storage component; 571. Rectangular sponge; 572. Tape hole; 573. Pen slot; 574. Eraser slot; 575. Pencil cutter slot; 58. Rectangular groove; 59. First damping rod; 510. Fixing rod; 511. Protrusion; 512. Connecting piece; 513. Clip hole; 6. Insertion hole; 7. Fixing hole; 8. Locking block; 9. Storage cavity; 10. Storage net bag; 11. Rectangular block; 12. Second damping rod; 13. L-shaped locking rod; 14. Elastic hook rod. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] Example 1

[0030] To address the technical problems in the background section, the following mechanical drawing board is provided:

[0031] Combination Figures 1-7As shown, the present invention provides a mechanical drawing board, including a first drawing board 1; a second drawing board 2 is rotatably connected to one side of the first drawing board 1 via a hinge, a storage cavity 3 is provided on one side of the second drawing board 2, dovetail grooves 4 are respectively provided on both sides of the inner wall of the storage cavity 3, a tool assembly 5 is installed in the storage cavity 3, insertion holes 6 are respectively provided at both ends of the other side of the second drawing board 2, and fixing holes 7 are respectively provided on both sides of the second drawing board 2; the tool assembly 5 includes a dovetail block 51, the dovetail block 51 is slidably connected in the dovetail groove 4, an extension plate 52 is fixedly connected to one side of the dovetail block 51, two sets of extension plates 52 are provided, and a storage plate 53 is rotatably connected between the two sets of extension plates 52 via a damping shaft, a first storage cavity 54 and a second storage cavity 55 are respectively provided on one side of the storage plate 53, a first intercepting net bag 56 is fixedly connected in the first storage cavity 54, and a storage component 57 is installed in the second storage cavity 55.

[0032] By sliding the dovetail block 51 within the dovetail groove 4, the storage plate 53 and the extension plate 52 rotate. When in use, the storage plate 53 can be pulled out from the storage cavity 3 for easy use by staff. When not in use, it can be stored and fixed in the storage cavity 3 for easy storage and carrying.

[0033] The first storage cavity 54 and the first intercepting net bag 56 in the tool assembly 5 work together to facilitate the later placement of tools such as triangle rulers and protractors by staff, making them easy to carry later.

[0034] In this embodiment, the tool assembly 5 further includes a rectangular groove 58. Rectangular grooves 58 are respectively provided at both ends of the top surface of the storage plate 53. A first damping rod 59 is fixedly connected to the inner wall of the rectangular groove 58. A fixing rod 510 is fixedly connected to one end of the first damping rod 59. One end of the fixing rod 510 passes through the storage plate 53 and is inserted into the fixing hole 7. The tool assembly 5 also includes a protrusion 511. A protrusion 511 is fixedly connected to the middle of the top surface of the storage plate 53. A connecting piece 512 is rotatably connected to the surface of the protrusion 511. A locking hole 513 is provided on one side of the connecting piece 512. The storage component 57 includes a rectangular sponge 571. A rectangular sponge 571 is fixedly connected inside the second storage cavity 55. A tape hole 572, a pen groove 573, an eraser groove 574, and a pencil sharpener groove 575 are respectively provided on one side of the rectangular sponge 571.

[0035] By utilizing the rectangular sponge 571, tape hole 572, pen slot 573, eraser slot 574, and pencil sharpener slot 575 in storage component 57, it is convenient to carry tools such as tape, eraser, pencil sharpener, compass, and pencil later, which is convenient for later drafting needs.

[0036] Example 2

[0037] like Figures 1-7As shown, based on the above embodiments, this embodiment further provides the following:

[0038] A locking block 8 is fixedly connected to the middle of the other side of the first drawing board 1. A storage cavity 9 is provided on the bottom surface of the first drawing board 1. A storage net bag 10 is fixedly connected to the middle of the storage cavity 9.

[0039] The storage net 10 inside the storage cavity 9 allows staff to easily fold and store the completed drawings inside. Then, the first drawing board 1 and the second drawing board 2 can be folded and stored, thus protecting the drawings and preventing them from being contaminated or lost during transport.

[0040] Example 3

[0041] like Figures 1-7 As shown, based on the above embodiments, this embodiment further provides the following:

[0042] Rectangular blocks 11 are fixedly connected to both sides of the inner wall of the storage cavity 9. A second damping rod 12 is fixedly connected to one side of the rectangular block 11. An L-shaped locking rod 13 is fixedly connected to one end of the second damping rod 12. One end of the L-shaped locking rod 13 passes through the first drawing board 1 and is inserted into the insertion hole 6. Elastic hook rods 14 are fixedly connected to both sides of the inner wall of the storage cavity 9.

[0043] Through the cooperation of the second damping rod 12, the L-shaped locking rod 13 and the elastic hook rod 14, the first drawing board 1 and the second drawing board 2 can be unfolded when the staff is using them, so that the staff can draw on the first drawing board 1 and the second drawing board 2. When the staff is not using them, the first drawing board 1 and the second drawing board 2 can be folded for easy carrying.

[0044] Working principle and usage process of this utility model:

[0045] In use:

[0046] In use, firstly, rotate the connecting piece 512. As the connecting piece 512 rotates, the locking hole 513 disengages from the locking block 8. After disengagement, the operator can then rotate the first drawing board 1 and the second drawing board 2. When the first drawing board 1 and the second drawing board 2 rotate to the same plane, the operator can then operate the elastic hook rod 14. As the elastic hook rod 14 deforms, it will no longer limit the L-shaped locking rod 13. At this time, the L-shaped locking rod 13 will move under the action of the second damping rod 12. As the L-shaped locking rod 13 moves, one end of the L-shaped locking rod 13 can be inserted into the insertion hole 6, thus fixing the first drawing board 1 and the second drawing board 2 together. Then, the staff can take the drawings out of the storage net bag 10 and lay them on the first drawing board 1 and the second drawing board 2. At this time, the staff moves the fixing rod 510. When one end of the fixing rod 51 comes out of the fixing hole 7, the staff can pull the storage plate 53 outward. As the storage plate 53 moves, it will drive the extension plate 52 and the dovetail block 51. As the dovetail block 51 moves, it can slide in the dovetail groove 4. When the storage plate 53 is completely taken out of the storage cavity 3, the staff can rotate the storage plate 53 at a certain angle to facilitate the staff to retrieve the tools inside later.

[0047] When not in use, the staff needs to first store the tool assembly 5 in the storage cavity 3 and fix it in place. After fixing, the drawings are stored. Then, the L-shaped locking rod 13 is moved. When the L-shaped locking rod 13 is fixed by the elastic hook rod 14, the first drawing board 1 and the second drawing board 2 can be stored for easy carrying later.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0049] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mechanical drawing board, characterized by: The utility model provides a drawing board, including first drawing board (1), one side of first drawing board (1) is connected with second drawing board (2) through hinged rotation, one side of second drawing board (2) is provided with storage cavity (3), both sides of cavity wall in storage cavity (3) are provided with swallow tail groove (4) respectively, tool assembly (5) is installed in storage cavity (3), both ends of other side of second drawing board (2) are provided with jack (6) respectively, both sides of second drawing board (2) are provided with fixed hole (7) respectively, The utility model provides a drawing board, including first drawing board (1), one side of first drawing board (1) is connected with second drawing board (2) through hinged rotation, one side of second drawing board (2) is provided with storage cavity (3), both sides of cavity wall in storage cavity (3) are provided with swallow tail groove (4) respectively, tool assembly (5) is installed in storage cavity (3), both ends of other side of second drawing board (2) are provided with jack (6) respectively, both sides of second drawing board (2) are provided with fixed hole (7) respectively, 2. A mechanical drawing board as claimed in claim 1, wherein: The utility model provides a drawing board, including first drawing board (1), one side of first drawing board (1) is connected with second drawing board (2) through hinged rotation, one side of second drawing board (2) is provided with storage cavity (3), both sides of cavity wall in storage cavity (3) are provided with swallow tail groove (4) respectively, tool assembly (5) is installed in storage cavity (3), both ends of other side of second drawing board (2) are provided with jack (6) respectively, both sides of second drawing board (2) are provided with fixed hole (7) respectively, 3. A mechanical drawing board as claimed in claim 2, wherein: The utility model provides a drawing board, including first drawing board (1), one side of first drawing board (1) is connected with second drawing board (2) through hinged rotation, one side of second drawing board (2) is provided with storage cavity (3), both sides of cavity wall in storage cavity (3) are provided with swallow tail groove (4) respectively, tool assembly (5) is installed in storage cavity (3), both ends of other side of second drawing board (2) are provided with jack (6) respectively, both sides of second drawing board (2) are provided with fixed hole (7) respectively, 4. A mechanical drawing board as claimed in claim 3, wherein: The utility model provides a drawing board, including first drawing board (1), one side of first drawing board (1) is connected with second drawing board (2) through hinged rotation, one side of second drawing board (2) is provided with storage cavity (3), both sides of cavity wall in storage cavity (3) are provided with swallow tail groove (4) respectively, tool assembly (5) is installed in storage cavity (3), both ends of other side of second drawing board (2) are provided with jack (6) respectively, both sides of second drawing board (2) are provided with fixed hole (7) respectively, 5. A mechanical drawing board as claimed in claim 4, wherein: The utility model provides a drawing board, including first drawing board (1), one side of first drawing board (1) is connected with second drawing board (2) through hinged rotation, one side of second drawing board (2) is provided with storage cavity (3), both sides of cavity wall in storage cavity (3) are provided with swallow tail groove (4) respectively, tool assembly (5) is installed in storage cavity (3), both ends of other side of second drawing board (2) are provided with jack (6) respectively, both sides of second drawing board (2) are provided with fixed hole (7) respectively, 6. A mechanical drawing board as claimed in claim 5, wherein: ​