An extendable engineering drawing device

Abstract

The utility model relates to engineering drawing drawing technical field discloses an extendible engineering design drawing drawing device, including the table board, the inside of table board is equipped with extension structure at both sides, the upper end surface of table board is equipped with magnetic attraction flexible pad, the upper end surface of table board is fixedly connected with the pressboard structure on both sides at the both ends of magnetic attraction flexible pad, for one of extension structure, the extension structure includes pedestal, the lower place of the one end surface of pedestal near table board center position is equipped with first recess, the first recess is fixedly connected with first magnetic attraction strip on the one inside wall near table board center position, the inside of first recess is equipped with frame. In the utility model, through setting up magnetic attraction flexible pad, it is convenient for the support between the upper end of support plate and table board with the movement of two frames, the gap is filled, and the drawing is placed on the magnetic attraction flexible pad and is drawn, and the drawing is prevented from being easily punctured by the pen through the gap.

Description

Technical Field

[0001] This utility model relates to the field of engineering drawing technology, and in particular to an extendable engineering design drawing device. Background Technology

[0002] Engineering design drawings are crucial technical documents in engineering projects. They describe the planning, design, and construction requirements of an engineering project in detail using graphics, text, and symbols. Engineering design drawings are an important tool for engineers, architects, and other professionals to express design intentions, convey technical information, and guide construction and acceptance. An engineering design drawing device is a device specifically designed to assist engineers, architects, and other professionals in efficiently and accurately drawing and modifying engineering design drawings. Designed to meet the needs of engineering designs of different scales and complexities, it provides engineers, architects, and other professionals with an efficient, accurate, and comfortable drawing experience through its unique extendable structure and multi-functional adjustment system.

[0003] Existing extendable engineering design drawing devices still have some problems. In the current extendable engineering design drawing devices, the extension plate is attached to the original table to increase the extendability. However, when drawing, the pen can easily puncture the drawing when passing through the gap between the two table plates, which is inconvenient for drawing. Therefore, those skilled in the art provide an extendable engineering design drawing device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an extendable engineering design drawing device. By setting up a magnetic flexible pad, it is easy to support the upper part between the support plate and the table as the two frames move, filling the gap. The drawing is placed on the magnetic flexible pad for drawing, preventing the pen from easily puncturing the drawing when passing through the gap.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an extendable engineering design drawing device, including a table, wherein an extension structure is provided on both sides of the table, a magnetic flexible pad is provided on the upper surface of the table, and a pressure plate structure is fixedly connected to the upper surface of the table at both ends of the magnetic flexible pad near both sides.

[0006] Taking one of the extended structures as an example, the extended structure includes a base, a first groove is formed on the lower part of one end face of the base near the center of the table, a first magnetic strip is fixedly connected to the inner side wall of the first groove near the center of the table, a frame is provided inside the first groove, a second magnetic strip is fixedly connected to one side wall of the frame located on one side of the first magnetic strip, a third groove is formed on the lower part of one end face of the frame away from the first magnetic strip, a plurality of springs are fixedly connected in a front-to-back arrangement on the inner side wall of the third groove near the first magnetic strip, a connecting block is fixedly connected to the other end of the plurality of springs, and the connecting block is fixedly connected to one end of the magnetic flexible pad;

[0007] Through the above technical solution, the increased width at both ends of the magnetic flexible pad pulls multiple springs, causing the magnetic flexible pad to be taut on the upper surfaces of the two support plates and the tabletop, covering the gap between the two support plates and the tabletop, and preventing the pen from puncturing the drawing paper when passing through the gap during the drawing process.

[0008] Furthermore, a second groove is provided on one side wall of the base at the upper end of the first groove, and a third magnetic strip is fixedly connected to one inner side wall of the second groove near the first magnetic strip;

[0009] With the above technical solution, after the frame moves out of the first groove, it is lifted up and inserted into the two second grooves. The two frames are then limited by the mutual magnetic attraction of the two second magnetic strips and the two third magnetic strips.

[0010] Furthermore, slide rails are provided on both the front and rear end faces of the two bases, and limit blocks are fixedly connected to both the front and rear end faces of the two frames located inside the four slide rails.

[0011] The above technical solution facilitates the adjustment of the frame distance by allowing the four limiting blocks to slide along the two slides.

[0012] Furthermore, a handle is fixedly connected to the lower end face of the frame away from the first magnetic strip, and a support plate is fixedly connected to the upper end face of the upper frame of the handle;

[0013] With the above technical solution, pulling two handles to both sides causes the two frames to move to both sides. After the surfaces of the two support plates are flush with the surface of the tabletop, the surface area of ​​the tabletop is increased, which facilitates the extension.

[0014] Furthermore, taking one of the pressure plate structures as an example, the pressure plate structure includes a magnetic base plate, which is fixedly connected to the upper surface of the table. A connecting post is fixedly connected to one end of the upper surface of the magnetic base plate, and a magnetic pressure plate is rotatably connected to the outer wall of the connecting post. The magnetic pressure plate and the magnetic flexible pad are magnetically attracted to each other.

[0015] With the above technical solution, the drawing is placed on the surface of the magnetic flexible pad and four magnetic pressure plates are rotated to press on the four opposite corners of the drawing, which facilitates pressing. The magnetic attraction between the magnetic pressure plates and the magnetic flexible pad increases the pressing force. After use, the magnetic pressure plates are rotated and placed on the magnetic base plate. The magnetic base plate and the magnetic pressure plates attract each other to prevent the magnetic pressure plates from rotating when carried, which facilitates use.

[0016] Furthermore, the two extended structures are symmetrically arranged with the center of the tabletop as the axis;

[0017] The above technical solution facilitates the extension of both sides of the tabletop.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, the magnetic flexible pad of the extendable engineering design drawing device has increased width at both ends, which pulls multiple springs to make the magnetic flexible pad taut on the upper surface of the two support plates and the table, covering the gap between the two support plates and the table, and preventing the pen from puncturing the drawing when passing through the gap during the drawing process.

[0020] 2. In this utility model, the drawing is placed on the surface of the magnetic flexible pad and four magnetic pressure plates are rotated to press on the four opposite corners of the drawing, which facilitates pressing. The magnetic attraction between the magnetic pressure plates and the magnetic flexible pad increases the pressing force. After use, the magnetic pressure plates are rotated and placed on the magnetic base plate. The magnetic base plate and the magnetic pressure plates attract each other to prevent the magnetic pressure plates from rotating when carried, which facilitates use. Attached Figure Description

[0021] Figure 1 A perspective view of an extendable engineering design drawing device proposed in this utility model;

[0022] Figure 2 A three-dimensional sectional view of an extendable engineering design drawing device proposed in this utility model;

[0023] Figure 3 A perspective view of the extended structure of an extendable engineering design drawing device proposed in this utility model;

[0024] Figure 4 A three-dimensional sectional view of the extension structure of an extendable engineering design drawing device proposed in this utility model;

[0025] Figure 5 This is a perspective view of the tabletop of the extendable engineering design drawing device proposed in this utility model.

[0026] Legend:

[0027] 1. Tabletop; 2. Extension structure; 3. Pressure plate structure; 4. Magnetic flexible pad;

[0028] 201. Base; 202. First groove; 203. First magnetic strip; 204. Frame; 205. Handle; 206. Second groove; 207. Limiting block; 208. Support plate; 209. Third groove; 210. Second magnetic strip; 211. Spring; 212. Connecting block; 213. Third magnetic strip; 214. Slide rail;

[0029] 301. Magnetic base plate; 302. Connecting post; 303. Magnetic pressure plate. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1-5 An embodiment of this utility model is provided: an extendable engineering design drawing device, including a table 1, an extension structure 2 on both sides of the inside of the table 1, a magnetic flexible pad 4 on the upper surface of the table 1, and a pressure plate structure 3 fixedly connected to the upper surface of the table 1 at both ends of the magnetic flexible pad 4 near both sides.

[0032] Taking one of the extension structures 2 as an example, the extension structure 2 includes a base 201. A first groove 202 is formed on the lower part of one end face of the base 201 near the center of the tabletop 1. A first magnetic strip 203 is fixedly connected to the inner side wall of the first groove 202 near the center of the tabletop 1. A frame 204 is provided inside the first groove 202. A second magnetic strip 210 is fixedly connected to one side wall of the frame 204 located on one side of the first magnetic strip 203. A third groove 209 is formed on the lower part of the end face of the frame 204 away from the first magnetic strip 203. Multiple springs 211 are fixedly connected in a front-to-back arrangement on one inner wall of the three grooves 209 near the first magnetic strip 203. The other end of the multiple springs 211 is fixedly connected to a connecting block 212. The connecting block 212 is fixedly connected to one end of the magnetic flexible pad 4. Due to the increased width at both ends of the magnetic flexible pad 4, the multiple springs 211 are pulled, so that the magnetic flexible pad 4 is taut on the upper surface of the two support plates 208 and the table 1, covering the gap between the two support plates 208 and the table 1, and preventing the pen from puncturing the drawing paper when passing through the gap during the drawing process.

[0033] A second groove 206 is provided on one side wall of the base 201 at the upper end of the first groove 202. A third magnetic strip 213 is fixedly connected to one inner side wall of the second groove 206 near the first magnetic strip 203. After the frame 204 moves out of the first groove 202, it is lifted up and inserted into the two second grooves 206. The two second magnetic strips 210 and the two third magnetic strips 213 are magnetically attracted to each other, thus limiting the position of the two frames 204.

[0034] Slides 214 are provided on both the front and rear ends of the two bases 201. Limiting blocks 207 are fixedly connected to both the front and rear ends of the two frames 204 inside the four slides 214, so that the four limiting blocks 207 can slide with the two slides 214 and adjust the distance of the frames 204.

[0035] A handle 205 is fixedly connected to the lower end of the frame 204 away from the first magnetic strip 203. A support plate 208 is fixedly connected to the upper end of the frame 204 above the handle 205. Pulling the two handles 205 to both sides causes the two frames 204 to move to both sides. After the surfaces of the two support plates 208 are flush with the surface of the tabletop 1, the surface area of ​​the tabletop 1 is increased, which facilitates the extension.

[0036] Taking one of the pressure plate structures 3 as an example, the pressure plate structure 3 includes a magnetic base plate 301, which is fixedly connected to the upper surface of the table 1. A connecting post 302 is fixedly connected to one end of the upper surface of the magnetic base plate 301. A magnetic pressure plate 303 is rotatably connected to the outer wall of the connecting post 302. The magnetic pressure plate 303 and the magnetic flexible pad 4 are magnetically attracted to each other. When the drawing is placed on the surface of the magnetic flexible pad 4, the four magnetic pressure plates 303 are rotated to press on the four opposite corners of the drawing, which is convenient for pressing. The magnetic attraction between the magnetic pressure plate 303 and the magnetic flexible pad 4 increases the pressing force. After use, the magnetic pressure plate 303 is rotated and placed on the magnetic base plate 301. The magnetic base plate 301 and the magnetic pressure plate 303 are attracted to each other, preventing the magnetic pressure plate 303 from rotating when carried, which is convenient for use.

[0037] The two extension structures 2 are symmetrically arranged with the center of the tabletop 1 as the axis, which facilitates the extension of both sides of the tabletop 1.

[0038] Working principle: In use, first fix the tabletop 1 to the table legs, pull the two handles 205 to both sides, the two handles 205 drive the two frames 204 to move to both sides, so that the two first magnetic strips 203 separate from the two second magnetic strips 210. The two frames 204 slide to both sides along the two first grooves 202. The four limiting blocks 207 slide with the two slide rails 214, move out of the first grooves 202 and then lift up and insert into the two second grooves 206. After the two second magnetic strips 210 and the two third magnetic strips 213 are magnetically attracted to each other, the two frames 204 are limited. Due to the increased width at both ends of the magnetic flexible pad 4, multiple springs 211 are pulled, so that the magnetic flexible pad 4 is taut on the upper surface of the two support plates 208 and the tabletop 1, covering the gap between the two support plates 208 and the tabletop 1, preventing the pen from puncturing the drawing paper when passing through the gap during the drawing process.

[0039] Place the drawing on the surface of the magnetic flexible pad 4 and rotate the four magnetic pressure plates 303 to press them down at the four opposite corners of the drawing for easy clamping. The magnetic attraction between the magnetic pressure plates 303 and the magnetic flexible pad 4 increases the clamping force. After use, rotate the magnetic pressure plates 303 and place them on the magnetic base plate 301. The magnetic base plate 301 and the magnetic pressure plates 303 attract each other to prevent the magnetic pressure plates 303 from rotating during carrying, making it easy to use.

[0040] After use, the two frames 204 are pulled out and inserted into the two first grooves 202. The two frames 204 are prevented from falling out of the two first grooves 202 by magnetic attraction between the two first magnetic strips 203 and the two second magnetic strips 210.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An extendable engineering drawing device comprising a table board (1), characterized in that: The tabletop (1) has an extension structure (2) on both sides inside. The tabletop (1) has a magnetic flexible pad (4) on the upper surface. The magnetic flexible pad (4) has a pressure plate structure (3) fixedly connected to the upper surface of the tabletop (1) at both ends near the front and rear sides. Taking one of the extension structures (2) as an example, the extension structure (2) includes a base (201). A first groove (202) is provided on the lower part of one end face of the base (201) near the center of the table (1). A first magnetic strip (203) is fixedly connected to the inner side wall of the first groove (202) near the center of the table (1). A frame (204) is provided inside the first groove (202). A second magnetic strip (210) is fixedly connected to one side wall of the frame (204) located on one side of the first magnetic strip (203). A third groove (209) is provided on the lower part of one end face of the frame (204) away from the first magnetic strip (203). A plurality of springs (211) are fixedly connected in a front-to-back arrangement on the inner side wall of the third groove (209) near the first magnetic strip (203). A connecting block (212) is fixedly connected to the other end of the plurality of springs (211). The connecting block (212) is fixedly connected to one end of the magnetic flexible pad (4).

2. An extendable engineering drawing device as claimed in claim 1, wherein: A second groove (206) is provided on one side wall of the upper base (201) of the first groove (202), and a third magnetic strip (213) is fixedly connected to one inner side wall of the second groove (206) near the first magnetic strip (203).

3. An extendable engineering drawing device as claimed in claim 1, wherein: Slides (214) are provided on both the front and rear ends of the two bases (201), and limit blocks (207) are fixedly connected to both the front and rear ends of the two frames (204) inside the four slides (214).

4. An extendable engineering drawing device as claimed in claim 1, wherein: A handle (205) is fixedly connected to the lower end face of the frame (204) away from the first magnetic strip (203), and a support plate (208) is fixedly connected to the upper end face of the frame (204) above the handle (205).

5. An extendable engineering drawing device as claimed in claim 1, wherein: Taking one of the pressure plate structures (3) as an example, the pressure plate structure (3) includes a magnetic base plate (301), which is fixedly connected to the upper surface of the table (1). A connecting post (302) is fixedly connected to one end of the upper surface of the magnetic base plate (301), and a magnetic pressure plate (303) is rotatably connected to the outer wall of the connecting post (302). The magnetic pressure plate (303) and the magnetic flexible pad (4) are magnetically attracted to each other.

6. An extendable engineering drawing device as claimed in claim 1, wherein: The two extended structures (2) are symmetrically arranged with the center of the tabletop (1) as the axis.

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