A drawing display mechanism

Abstract

The utility model discloses a drawing display mechanism, including a holding plate, a main movable column, a secondary movable column, a slide, a mounting seat, a positive and negative lead screw, a bracket, a pulling shaft, a winding shaft, a mounting box and a spring, the front end of the holding plate is provided with a main movable shaft and a secondary movable column on both sides, the front end of the holding plate is provided with a mounting seat, one side of the mounting seat is plugged with a positive and negative lead screw, the front side of the main movable column and the secondary movable column are both provided with a bracket, the front side of the main movable column is provided with a pulling shaft, the front side of the secondary movable column is provided with a winding shaft, the upper end of the winding shaft is provided with a mounting box, and the inside of the mounting box is provided with a spring. Compared with the prior art, the utility model has the advantage that drawings can be easily stored.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a drawing display mechanism. Background Art

[0002] Architectural design means that before a building is built, the designer, in accordance with the construction task, makes a comprehensive plan in advance for the problems that exist or may occur during the construction process and use, and formulates solutions and plans to solve these problems, which are expressed in drawings and documents. For students majoring in architectural design, they need to draw various design drawings in their daily studies. Sometimes teachers will display excellent works for students to visit and learn. At this time, a drawing display mechanism is needed.

[0003] A construction engineering design drawing hanging mechanism described in publication number CN215271557U includes a display board, a frame is provided on one side of the display board, support parts are provided on both sides of the bottom of the frame, slide rails are provided on the top of both sides of the display board, and a plurality of clamping parts are slidably connected to the bottom of each slide rail. The utility model is quick to flip over, fully utilizes the display space of the display board, is convenient for hanging more drawings, and is easy to switch and display in sections, saving time and effort, and improving its practicality. However, the prior art still has defects:

[0004] The hanging chart mechanism used in the prior art displays the drawings by flattening them and fixing them on a display board. This requires a large display area to fix the drawings, and the area occupied is large. The drawing paper is easily soiled or damaged when fully unfolded. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the above-mentioned defects and provide a drawing display mechanism.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is a drawing display mechanism, including a base plate, a support plate is fixedly connected to the upper side of the base plate, the upper end of the support plate is tilted backward, a holding plate is arranged at the upper end of the front side of the support plate, a main movable column and a secondary movable column are arranged on both sides of the upper end of the holding plate, a sliding groove is provided on the side where the main movable column and the secondary movable column are close to each other, a first main connecting rod and a first secondary connecting rod are arranged on the side where the main movable column is close to the secondary movable column, and a second main connecting rod and a second secondary connecting rod are arranged on the side where the secondary movable column is close to the main movable column A sliding rod is fixedly connected to the rear side of the hinged end of the first main connecting rod and the second main connecting rod, a limiting structure is arranged between the sliding rod and the containing plate, a mounting seat is fixedly connected to the lower end of the front side of the containing plate, a positive and negative lead screw is inserted into one side of the mounting seat, a bracket is arranged on the front side of the main movable column and the secondary movable column, a pulling shaft is arranged on the front side of the main movable column, two ends of the pulling shaft are respectively rotatably connected with the inner side of the bracket, a winding shaft is arranged on the front side of the secondary movable column, a mounting box is arranged on the upper end of the winding shaft, a spring is arranged inside the mounting box, and a clamping groove is opened on the upper end of the winding shaft.

[0007] As an improvement, the first main connecting rod is hinged at the middle of the first auxiliary connecting rod, and the second main connecting rod is hinged at the middle of the second auxiliary connecting rod.

[0008] As an improvement, the upper end of the first main connecting rod is hinged to the upper end of the inner part of the slide slot, the lower end of the first main connecting rod is hinged to the lower end of the second main connecting rod, and the other end of the second main connecting rod connected to the first main connecting rod is hinged to the upper end of the inner part of the slide slot.

[0009] As an improvement, the upper end of the first secondary connecting rod is hinged to the upper end of the second secondary connecting rod, and the hinged ends of the first secondary connecting rod and the second secondary connecting rod are hinged to the upper end of the front side of the containing plate.

[0010] As an improvement, the limiting structure includes a sliding hole opened on the front side of the containing plate for use with the sliding rod, and the sliding rod is provided with blocking pieces for use with the sliding hole at the front and rear of the containing plate.

[0011] As an improvement, the first and second auxiliary connecting rods are both connected with limit rods at their front lower ends, the main movable column and the auxiliary movable column are both threadedly connected with the forward and reverse lead screws at their lower ends on the sides close to each other, and limit grooves are provided at the front and rear ends of the slide groove for use with the limit rods.

[0012] As an improvement, one end of the mainspring is fixedly connected to the inner wall of the installation box, and the other end of the mainspring is inserted into the inside of the clamping groove.

[0013] The advantages of the utility model compared with the prior art are: the utility model uses two sets of scissor-type connecting rods to realize the folding function between the main movable column and the auxiliary movable column, and drives the winding shaft through the winding spring. When the two movable columns are close to each other, the drawings can be automatically rolled up. When the two movable columns are away from each other, the drawings can be gradually unfolded, which makes it convenient to view and store the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of a drawing display mechanism of the utility model.

[0015] Figure 2 The utility model is a structural enlarged three-dimensional drawing display mechanism Figure 1 .

[0016] Figure 3 The utility model is a structural enlarged three-dimensional drawing display mechanism Figure 2 .

[0017] Figure 4 This is a structural enlarged cross section of a drawing display mechanism of the utility model Figure 1 .

[0018] Figure 5 This is a structural enlarged cross section of a drawing display mechanism of the utility model Figure 2 .

[0019] Figure 6 It is an enlarged view A of a drawing display mechanism of the utility model.

[0020] As shown in the figure: 1. Base plate; 2. Support plate; 3. Holding plate; 4. Main movable column; 5. Secondary movable column; 6. Slide groove; 7. First main connecting rod; 8. First secondary connecting rod; 9. Second main connecting rod; 10. Second secondary connecting rod; 11. Slide rod; 12. Limiting structure; 13. Mounting seat; 14. Forward and reverse screws; 15. Bracket; 16. Pulling shaft; 17. Winding shaft; 18. Mounting box; 19. Spring; 20. Snap-in groove; 21. Sliding hole; 22. Blocking piece; 23. Limiting rod; 24. Limiting groove. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1-6As shown, the utility model is provided with two movable columns, one is called the column movable column 4, and the other is called the secondary movable column 5. A slide groove 6 is provided on the side where the two movable columns are close to each other. The two movable columns are connected together by four connecting rods. The two connecting rods are crossed to form a group, and the two movable columns are connected together by two groups of scissor-type connecting rods. There is a holding plate 3 on the middle rear side of the two movable columns, and there is a supporting plate 2 under the holding plate 3. The upper end of the supporting plate 2 is tilted backward for convenient observation of the drawings between the two movable columns. The lower end of the supporting plate 2 is connected to a bottom plate 1 for stabilizing the supporting plate 2. The four connecting rods are respectively a first main connecting rod 7 and a first secondary connecting rod 8, a second main connecting rod 9 and a second secondary connecting rod 10. The middle of the first main connecting rod 7 and the middle of the first secondary connecting rod 8 are hinged together, the middle of the second main connecting rod 9 and the middle of the second secondary connecting rod 10 are hinged together, and the upper end of the first main connecting rod 7 and the inner part of the slide groove 6 The upper end of the first main connecting rod 7 and the lower end of the second main connecting rod 9 are hinged together, and the second main connecting rod 9 is connected to the other end of the first main connecting rod 7 and the upper end of the slide groove 6, and the upper end of the first secondary connecting rod 8 and the upper end of the second secondary connecting rod 10 are hinged together. The hinged ends of the first secondary connecting rod 8 and the second secondary connecting rod 10 are connected to the front upper end of the holding plate 3, and a sliding rod 11 is installed on the rear side of the hinged ends of the first main connecting rod 7 and the second main connecting rod 9. When the two movable columns approach or move away from each other, the sliding rod 11 will move up and down. In order to prevent the two movable columns from tilting during the movement of the sliding rod 11, a sliding hole 21 for cooperating with the sliding rod 11 is opened on the front side of the holding plate 3, and two baffles 22 are arranged on the sliding rod 11. The two baffles 22 clamp the holding plate 3 in the middle position, forming a set of limiting structures 12 between the sliding rod 11 and the holding plate 3.

[0023] The utility model is provided with a limit rod 23 inserted at the lower end of the front side of the first secondary connecting rod 8 and the second secondary connecting rod 10, and the front and rear insides of the slide groove 6 are provided with limit grooves 24 used to cooperate with the limit rod 23. A mounting seat 13 is installed at the lower end of the front side of the holding plate 3, and a positive and negative lead screw 14 is inserted at one side of the mounting seat 13. The thread directions on both sides of the positive and negative lead screw 14 are opposite, and the positive and negative lead screw 14 can be rotated on the mounting seat 13. The lower ends of the sides of the main movable column 4 and the secondary movable column 5 that are close to each other are threadedly connected with the positive and negative lead screw 14. By rotating the positive and negative lead screw 14, the two movable columns can be brought closer to or away from each other. A bracket 15 is installed at the front side of the main movable column 4 and the secondary movable column 5. A pulling shaft 16 is provided on the front side of the main movable column 4, and both ends of the pulling shaft 16 are respectively connected to the up and down rotation of the inner side of the bracket 15. A winding shaft 17 is provided on the front side of the auxiliary movable column 5, and a mounting box 18 is provided on the upper end of the winding shaft 17. The outer upper side of the mounting box 18 and the upper side of the inner part of the auxiliary movable column 5 are fixedly connected together. The drawings wound on the outside of the winding shaft 17 are wound by a spring 19 arranged inside the mounting box 18. A clamping groove 20 is provided at the upper end of the winding shaft 17, and one end of the outer part of the spring 19 is connected to the inner wall of the mounting box 18, and one end of the inner part of the spring 19 is inserted into the inner part of the clamping groove 20. The elasticity of the spring 19 drives the rotating shaft of the winding shaft 17 to rotate.

[0024] When the utility model is implemented, the forward and reverse lead screws 14 are first rotated to move the two movable columns away from each other to the sides. After the movement is completed, one end of the drawing to be displayed is inserted into the slot on the pulling shaft 16, and the other end is held first, and the winding shaft 17 is rotated until the winding shaft 17 cannot be rotated, that is, after the mainspring 19 is tightened, the other end of the drawing is stuck in the slot of the winding shaft 17, the winding shaft is held, and the forward and reverse lead screws 14 are rotated in the opposite direction to make the two movable columns approach each other. In the process of approaching each other, the sliding rod 11 moves downward along the sliding hole 21, and the winding shaft 17 is slowly loosened to prevent the instantaneous pulling force of the winding shaft 17 from being too large to tear the drawing. Under the action of the elastic force of the mainspring 19, the winding shaft 17 slowly rolls up the drawing.

[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A drawing display mechanism, comprising a bottom plate (1), characterized in that: The upper side of the bottom plate (1) is fixedly connected with a support plate (2), the upper end of the support plate (2) is tilted backwards, and a holding plate (3) is arranged at the upper end of the front side of the support plate (2). The upper sides of the holding plate (3) are respectively provided with a main movable column (4) and a secondary movable column (5), and a sliding groove (6) is provided on the side where the main movable column (4) and the secondary movable column (5) are close to each other. A first main connecting rod (7) and a first secondary connecting rod (8) are arranged on the side where the main movable column (4) is close to the secondary movable column (5), and a second main connecting rod (9) and a second secondary connecting rod (10) are arranged on the side where the secondary movable column (5) is close to the main movable column (4). The rear sides of the hinged ends of the first main connecting rod (7) and the second main connecting rod (9) are fixedly connected with a sliding rod (11). ), a limiting structure (12) is arranged between the sliding rod (11) and the containing plate (3), a mounting seat (13) is fixedly connected to the lower end of the front side of the containing plate (3), a positive and negative lead screw (14) is inserted into one side of the mounting seat (13), a bracket (15) is arranged on the front side of the main movable column (4) and the auxiliary movable column (5), a pulling shaft (16) is arranged on the front side of the main movable column (4), and the two ends of the pulling shaft (16) are respectively rotatably connected to the inner side of the bracket (15), a winding shaft (17) is arranged on the front side of the auxiliary movable column (5), a mounting box (18) is arranged on the upper end of the winding shaft (17), a spring (19) is arranged inside the mounting box (18), and a clamping groove (20) is opened on the upper end of the winding shaft (17).

2. A drawing display mechanism according to claim 1, characterized in that: The first main connecting rod (7) is hinged to the first auxiliary connecting rod (8) in the middle, and the second main connecting rod (9) is hinged to the second auxiliary connecting rod (10) in the middle.

3. A drawing display mechanism according to claim 1, characterized in that: The upper end of the first main connecting rod (7) is hinged to the upper end inside the slide groove (6), the lower end of the first main connecting rod (7) is hinged to the lower end of the second main connecting rod (9), and the other end of the second main connecting rod (9) connected to the first main connecting rod (7) is hinged to the upper end inside the slide groove (6).

4. A drawing display mechanism according to claim 1, characterized in that: The upper end of the first secondary connecting rod (8) is hinged to the upper end of the second secondary connecting rod (10), and the hinged ends of the first secondary connecting rod (8) and the second secondary connecting rod (10) are hinged to the upper end of the front side of the containing plate (3).

5. A drawing display mechanism according to claim 1, characterized in that: The limiting structure (12) comprises a sliding hole (21) provided on the front side of the containing plate (3) for use with the sliding rod (11); the sliding rod (11) is provided with blocking pieces (22) for use with the sliding hole (21) at the front and rear of the containing plate (3).

6. A drawing display mechanism according to claim 1, characterized in that: The first auxiliary connecting rod (8) and the second auxiliary connecting rod (10) are both connected to the limit rod (23) at their front lower ends, the main movable column (4) and the auxiliary movable column (5) are both threadedly connected to the forward and reverse lead screws (14), and the slide groove (6) is provided with limit grooves (24) at the front and rear ends thereof for use with the limit rod (23).

7. A drawing display mechanism according to claim 1, characterized in that: One end of the spring (19) is fixedly connected to the inner wall of the installation box (18), and the other end of the spring (19) is inserted into the inside of the clamping groove (20).

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