Civil engineering drawing auxiliary tool

Abstract

The utility model discloses an auxiliary tool for civil engineering drawing, which belongs to the technical field of constructional engineering design, and comprises a base plate and two expansion plates, the two expansion plates are symmetrically arranged, and the two expansion plates are respectively arranged on two sides of the base plate. Connecting lugs are integrally formed on the outer walls of the two sides, close to the edge of the base plate, of the expansion plate, a guide rod is welded between the connecting lugs, and a guide hole is formed in the combination position of the guide rod and the base plate. And when the guide rod moves to the end part of the guide hole, the two expansion plates are dragged to move in opposite directions, so that the clamping bosses arranged at the end parts of the expansion plates are clamped with the clamping grooves, and the expansion plates are further fixed. And the applicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering design, and more specifically to a civil engineering drawing auxiliary tool. Background Art

[0002] Before a building is built, the designer needs to make a comprehensive plan in advance for the problems that exist or may occur during the construction process and use process according to the construction task, formulate methods and solutions to solve these problems, and express them in drawings and documents. At different stages of architectural design, it is necessary to draw design drawings of different contents. Although most of the existing architectural drawings have been transformed from manual drawing to computer software drawing, in the actual work process, some drawings still need to be drawn temporarily by hand, which requires the use of special drawing auxiliary tools. Traditional special drawing auxiliary tools mainly include drawing boards, T-squares, squares, triangles, protractors, drawing pencils, compasses, drawing fixing tapes and erasers. The existing auxiliary drawing tools have the disadvantages of single function, the drawing tools cannot be flexibly adjusted, resulting in inaccurate drawings, and because of the large size, it is also inconvenient to carry. The existing patent is an auxiliary drawing tool for architectural engineering design, and the patent authorization number is CN213534297 U. The structure is simple, the operation is flexible and changeable, which improves the convenience and comfort of the draftsman, and it is also easy to carry, with diverse functions and strong practicality.

[0003] However, the drawing board in the patent authorization number CN 213534297 U is a magnetic metal plate, and four sets of fixed magnets are arranged on the drawing board to fix the drawings. Since the size of the drawing board cannot be adjusted, only drawing papers of fixed sizes can be placed, resulting in its low applicability. Therefore, we propose a civil engineering drawing auxiliary tool to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a civil engineering drawing auxiliary tool, which can be used by the drawing staff to drag the expansion plate and use the guide rod set at the connecting ear to move with the guide hole to make the two expansion plates move away from each other. When the guide rod moves to the end of the guide hole, the two expansion plates are dragged to move toward each other, so that the clamping boss set at the end of the expansion plate is engaged with the clamping groove, and then the expansion plate is fixed. It can be used for general large-size drawings and can be used to lay papers of different sizes, thereby improving the applicability of the device.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A civil engineering drawing auxiliary tool comprises a base plate and an expansion plate;

[0009] Two expansion boards are symmetrically arranged, and the two expansion boards are respectively installed on two sides of the base plate;

[0010] The outer walls of both sides of the expansion board close to the edge of the base plate are integrally formed with connecting ears, and a guide rod is welded between the connecting ears. A guide hole is opened at the junction of the guide rod and the base plate, and the guide hole is arranged in a C-shaped structure;

[0011] The expansion board is integrally formed with a clamping boss at the end near the edge of the base plate, and a clamping groove is provided at the base plate corresponding to the clamping boss, and an embedded structure is formed between the clamping groove and the clamping boss;

[0012] The end of the expansion board away from the base plate is arranged in an L-shaped structure, and the inner facade of the end of the expansion board away from the base plate is inlaid with a first magnetic block, and the outer wall of the base plate corresponding to the first magnetic block is inlaid with a second magnetic block.

[0013] Furthermore, a storage groove is provided on the back side of the base plate, and an adjustment plate is rotatably connected to the inner side of the storage groove.

[0014] Furthermore, connection blocks are fixedly connected to the surfaces of the base plate located on both sides of the storage groove, and adjustment rods are rotatably connected between the connection blocks, and the adjustment rods are arranged in a U-shaped structure.

[0015] Furthermore, an axial hole is provided at the junction of the connecting block and the end of the adjusting rod, and the inner diameter of the axial hole is adapted to the outer diameter of the adjusting rod;

[0016] A positioning groove is formed on the surface of the adjusting plate close to the adjusting rod, and a plurality of the positioning grooves are arranged at equal intervals.

[0017] Furthermore, both side outer walls of the adjustment plate are inlaid with anti-skid rubber blocks, and the anti-skid rubber blocks correspond to the inner side walls of the storage groove.

[0018] Furthermore, the anti-slip rubber block is provided with anti-slip grooves on the surface close to the inner side wall of the storage groove.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] (1) In this solution, the drawing staff drags the expansion board and uses the guide rod provided at the connecting ear to move with the guide hole to move the two expansion boards away from each other. When the guide rod moves to the end of the guide hole, the two expansion boards are dragged to move toward each other, so that the engaging boss provided at the end of the expansion board engages with the engaging groove, thereby fixing the expansion board. This solution can be used for general large-size drawings. When the expansion board is reset, the two expansion boards will abut against each other. At the same time, the first magnetic block and the second magnetic block are aligned in magnetic pole, so that the expansion board is positioned, which makes it easy to carry the device and can be used to lay papers of different sizes, thereby improving the applicability of the device.

[0022] (2) In this solution, the adjustment plate is flipped out from the inside of the storage slot, and the connecting block is used to cooperate with the rotation of the adjustment rod. According to the drawing posture of the draftsman, the adjustment rod is engaged with the corresponding positioning slot to adjust the base plate to the optimal angle, which can effectively reduce the fatigue of the draftsman during the drawing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the substrate structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the expansion board structure of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the expansion board of the utility model from another perspective;

[0027] Figure 5 It is a schematic diagram of the expanded structure of the expansion board of the utility model;

[0028] Figure 6 This is a schematic diagram of the back of the substrate of the utility model.

[0029] Description of the numbers in the figure:

[0030] 1. Base plate; 2. Extension plate; 3. Connecting ear; 4. Guide rod; 5. Snap-in boss; 6. Guide hole; 7. Card slot; 8. First magnetic block; 9. Second magnetic block; 10. Storage slot; 11. Adjustment plate; 12. Positioning slot; 13. Connecting block; 14. Adjustment rod; 15. Anti-slip rubber block. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0032] Example:

[0033] See also Figure 1-6 , a civil engineering drawing auxiliary tool, comprising a base plate 1 and an expansion plate 2;

[0034] Two expansion boards 2 are symmetrically arranged, and the two expansion boards 2 are respectively installed on both sides of the base plate 1;

[0035] The outer walls of both sides of the expansion board 2 near the edge of the base plate 1 are integrally formed with connecting ears 3, and guide rods 4 are welded between the connecting ears 3. A guide hole 6 is opened at the junction of the guide rod 4 and the base plate 1, and the guide hole 6 is arranged in a C-shaped structure;

[0036] A clamping boss 5 is integrally formed at the end of the expansion board 2 near the edge of the base plate 1, and a clamping slot 7 is provided at the base plate 1 corresponding to the clamping boss 5, and an embedded structure is formed between the clamping slot 7 and the clamping boss 5;

[0037] The end of the expansion board 2 away from the substrate 1 is arranged in an L-shaped structure, and the inner facade of the end of the expansion board 2 away from the substrate 1 is inlaid with a first magnetic block 8, and the outer wall of the substrate 1 corresponding to the first magnetic block 8 is inlaid with a second magnetic block 9;

[0038] It should be noted that, in the work of civil engineering drawing, the drawing is placed at the device. When the size of the drawing is larger than the base plate 1, the drawing staff drags the expansion board 2 and uses the guide rod 4 provided at the connecting ear 3 to cooperate with the guide hole 6 to move the two expansion boards 2 away from each other. When the guide rod 4 moves to the end of the guide hole 6, the two expansion boards 2 are dragged to move toward each other, so that the snap-in boss 5 provided at the end of the expansion board 2 is snapped with the snap-in groove 7, and then the expansion board 2 is fixed. It can be used for general enlarged-size drawings. When the expansion board 2 is reset, the two expansion boards 2 will abut against each other. At the same time, the first magnetic block 8 and the second magnetic block 9 are aligned with each other to position the expansion board 2, which is convenient for carrying the device. It can be used to lay papers of different sizes, thereby improving the applicability of the device.

[0039] like Figure 1As shown, a receiving groove 10 is provided on the back of the base plate 1, and an adjusting plate 11 is rotatably connected to the inner side of the receiving groove 10, and connecting blocks 13 are fixedly connected to the surface of the base plate 1 on both sides of the receiving groove 10, and an adjusting rod 14 is rotatably connected between the connecting blocks 13, and the adjusting rod 14 is arranged in a U-shaped structure. Furthermore, a positioning groove 12 is provided on the surface of the adjusting plate 11 close to the adjusting rod 14, and a plurality of positioning grooves 12 are equidistantly arranged;

[0040] It should be noted that by flipping the adjustment plate 11 out from the inner side of the storage groove 10, and using the connecting block 13 to cooperate with the rotation of the adjustment rod 14, according to the drawing posture of the draftsman, the adjustment rod 14 is engaged with the corresponding positioning groove 12, and the base plate 1 is adjusted to the optimal angle, which can effectively reduce the fatigue of the draftsman during the drawing process.

[0041] like Figure 1 As shown, an axial hole is provided at the junction of the connecting block 13 and the end of the adjusting rod 14, and the inner diameter of the axial hole is adapted to the outer diameter of the adjusting rod 14;

[0042] It should be noted that the stability of the adjustable rod 14 in the process of rotating in cooperation with the connecting block 13 is ensured, thereby ensuring the stability of the adjustable rod 14 in the process of positioning in cooperation with the positioning groove 12.

[0043] like Figure 1 , Figure 6 As shown, both sides of the outer wall of the adjustment plate 11 are inlaid with anti-skid rubber blocks 15, and the anti-skid rubber blocks 15 correspond to the inner side walls of the storage slot 10, and the anti-skid rubber blocks 15 are provided with anti-skid patterns on the surface close to the inner side walls of the storage slot 10;

[0044] It should be noted that, after the adjustment plate 11 is received in the inner side of the receiving groove 10 , the anti-slip rubber block 15 abuts against the inner side wall of the receiving groove 10 , thereby achieving a good positioning effect for the adjustment plate 11 .

[0045] When in use: In the work of civil engineering drawing, the drawing is placed at the device. When the size of the drawing is larger than the base plate 1, the drawing staff drags the expansion board 2 and uses the guide rod 4 provided at the connecting ear 3 to cooperate with the guide hole 6 to move the two expansion boards 2 away from each other. When the guide rod 4 moves to the end of the guide hole 6, the two expansion boards 2 are dragged to move toward each other, so that the clamping boss 5 provided at the end of the expansion board 2 is engaged with the clamping groove 7, and then the expansion board 2 is fixed. It can be used for general enlarged size drawings. When the expansion board 2 is reset, the two expansion boards 2 will abut together. At the same time, the first magnetic block 8 and the second magnetic block 9 are aligned with each other to position the expansion board 2, which is convenient for carrying the device and can be used to lay papers of different sizes.

[0046] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A civil engineering drawing auxiliary tool, characterized by: It comprises a base plate (1) and an expansion plate (2); Two expansion boards (2) are symmetrically arranged, and the two expansion boards (2) are respectively mounted on two sides of the base plate (1); The outer walls of both sides of the expansion plate (2) close to the edge of the base plate (1) are integrally formed with connecting ears (3), and a guide rod (4) is welded between the connecting ears (3), and a guide hole (6) is provided at the junction of the guide rod (4) and the base plate (1), and the guide hole (6) is arranged in a C-shaped structure; A clamping boss (5) is integrally formed at the end of the expansion board (2) close to the edge of the base plate (1); a clamping slot (7) is provided at a position corresponding to the base plate (1) and the clamping boss (5); and an embedded structure is formed between the clamping slot (7) and the clamping boss (5); The end of the expansion board (2) away from the base board (1) is arranged in an L-shaped structure, and a first magnetic block (8) is embedded in the inner facade of the end of the expansion board (2) away from the base board (1), and a second magnetic block (9) is embedded in the outer wall of the base board (1) corresponding to the first magnetic block (8).

2. The civil engineering drawing aid according to claim 1, characterized in that: The back side of the base plate (1) is provided with a storage groove (10), and the inner side of the storage groove (10) is rotatably connected with an adjustment plate (11).

3. The civil engineering drawing aid according to claim 2, characterized in that: The surfaces of the base plate (1) located on both sides of the storage groove (10) are fixedly connected with connection blocks (13), and the connection blocks (13) are rotatably connected with adjustment rods (14), and the adjustment rods (14) are arranged in a U-shaped structure.

4. The civil engineering drawing aid according to claim 3, characterized in that: An axial hole is provided at the junction of the connecting block (13) and the end of the adjusting rod (14), and the inner diameter of the axial hole is adapted to the outer diameter of the adjusting rod (14); A positioning groove (12) is provided on the surface of the adjustment plate (11) close to the adjustment rod (14), and a plurality of the positioning grooves (12) are arranged at equal intervals.

5. The civil engineering drawing aid according to claim 2, characterized in that: The outer walls on both sides of the adjustment plate (11) are inlaid with anti-skid rubber blocks (15), and the anti-skid rubber blocks (15) correspond to the inner side walls of the storage groove (10).

6. The civil engineering drawing aid according to claim 5, characterized in that: The anti-slip rubber block (15) is provided with anti-slip grooves on the surface close to the inner side wall of the storage groove (10).

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