Drawing display device

Abstract

The utility model discloses a drawing display device which comprises a base and a telescopic frame, a telescopic rod is fixedly arranged at the top of the base, the telescopic frame comprises a fixed rod and a movable rod, transverse rods are fixedly arranged on the left side and the right side of the upper end and the lower end of the fixed rod respectively, and sliding grooves are formed in the front sides of the transverse rods in a concave mode respectively. The rear side of the fixed rod is rotationally connected with the top of the telescopic rod, the two movable rods are symmetrically arranged on the left side and the right side of the fixed rod, sliding rods are fixedly arranged at the upper ends and the lower ends of the sides, close to each other, of the two movable rods correspondingly, the sliding rods are slidably embedded in the corresponding sliding grooves correspondingly, and clamping mechanisms are arranged on the front sides of the movable rods correspondingly. Through the arrangement, the purpose of adjusting the overall width of the telescopic frame is achieved by sliding the two movable rods, so that the device can fix drawings of various sizes, and meanwhile, the occupied area of the device in an idle state is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of showing stand, specifically relates to a drawing display device. BACKGROUND

[0002] In order to ensure the construction progress and engineering quality of building engineering, construction personnel often need to study engineering drawings, and at present, construction personnel generally spread drawings on the desktop for reading, and long-term reading in this way will cause negative effects on the eyes, cervical vertebra and spine of construction personnel.

[0003] The Chinese patent with publication number CN220655159U discloses an engineering drawing examination and reading rack, which comprises an engineering drawing reading board, two clamping plates are movably arranged at the front end of the engineering drawing reading board, first sliding grooves are formed at the top and bottom ends of the engineering drawing reading board, and two first sliding blocks are arranged in the first sliding grooves.

[0004] When the above-mentioned scheme is used, a larger engineering drawing reading board needs to be used to adapt to larger size drawings, and the width of the engineering drawing reading board cannot be adjusted, so that the above-mentioned scheme is inconvenient to store when it is idle. UTILITY MODEL CONTENT

[0005] The utility model intends to provide a drawing display device to solve the problem of inconvenience in storage of the above-mentioned scheme.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0007] A drawing display device comprises a base and a telescopic frame, a telescopic rod is fixedly arranged at the top of the base, the telescopic frame comprises a fixed rod and a movable rod, horizontal rods are fixedly arranged at the left and right sides of the upper and lower ends of the fixed rod, respectively, a sliding groove is concavely arranged at the front side of each horizontal rod, the rear side of the fixed rod is rotationally connected with the top of the telescopic rod, two groups of movable rods are symmetrically arranged at the left and right sides of the fixed rod, sliding rods are fixedly arranged at the upper and lower ends of the side close to each other of the two movable rods, respectively, each sliding rod is slidingly embedded in the corresponding sliding groove, and clamping mechanisms are arranged at the front sides of the movable rods, respectively.

[0008] Principle and effect of the technical scheme:

[0009] Place the base on the ground, then slide the two movable rods according to the size of the drawing to be displayed, then fix the two ends of the drawing on the surfaces of the two movable rods through the clamping mechanisms, then extend the telescopic rod according to the actual situation, and finally rotate the fixed rod.

[0010] Through the above setting, the purpose of adjusting the overall width of the telescopic frame is achieved by sliding the two movable rods, so that the device can fix various sizes of drawings, while reducing the floor area of the device in the idle state, solving the problem of inconvenience of storage in the above scheme.

[0011] In the utility model, the front side of the fixed rod is concave with an installation groove, a bidirectional screw rod is rotationally arranged in the installation groove, the front and back screw thread segments of the bidirectional screw rod are respectively and symmetrically matched with a sliding block, the two sliding blocks are respectively in sliding abutment with the rear side wall of the installation groove, the left and right sides of the two sliding blocks are respectively rotationally connected with a connecting rod, and the ends of the connecting rods are respectively rotationally connected with the inner side walls of the adjacent movable rods.

[0012] In the utility model, the lower end of the bidirectional screw rod is rotationally arranged in the bottom wall of the installation groove, the bottom wall of the bidirectional screw rod is fixedly provided with a disc, and the bottom wall of the disc is eccentrically fixedly provided with a handle.

[0013] In the utility model, the telescopic rod comprises a rod sleeve and a vertical rod, the bottom of the rod sleeve is fixedly connected with the top of the base, and the bottom of the vertical rod is slidingly inserted into the top of the rod sleeve.

[0014] In the utility model, the lateral wall of the rod sleeve is provided with a through screw hole, and a fastening bolt is threadedly arranged in the screw hole.

[0015] The principle and effects of the technical scheme are as follows:

[0016] After the vertical rod is slid up and down to the appropriate position, the fastening bolt is rotated, and the end of the fastening bolt is abutted against the lateral wall of the vertical rod.

[0017] Through the above setting, the friction force between the fastening bolt and the vertical rod prevents the vertical rod from moving downward, achieving the purpose of fixing the vertical rod.

[0018] In the utility model, the rear side wall of the fixed rod is fixedly provided with a connecting seat, the left and right side walls of the connecting seat are respectively fixedly provided with connecting shafts, the left and right sides of the top of the vertical rod are respectively fixedly provided with sleeves, and the two connecting shafts are respectively rotationally inserted into the corresponding sleeves.

[0019] In the utility model, the lateral wall of the right connecting shaft is concave with a limiting hole, the lateral wall of the right sleeve is circumferentially and interval ly provided with a plurality of through holes capable of being aligned with the limiting hole, and a bolt is slidingly arranged in the through hole.

[0020] The principle and effects of the technical scheme are as follows:

[0021] When the inclination angle of the telescopic frame needs to be adjusted, first, the pin is pulled out, then the fixed rod is rotated to align the limiting hole with one of the through holes, the pin is inserted through the through hole aligned with the limiting hole, and the end of the pin is inserted into the limiting hole.

[0022] Through the above setting, the inclination angle of the telescopic frame can be adjusted, thereby facilitating the construction personnel to read the drawings fixed on the surface of the telescopic frame.

[0023] In the utility model, the upper and lower ends of the front side of the movable rod are fixedly provided with mounting seats respectively, the clamping mechanism comprises clamping plates, the upper and lower ends of the clamping plates are fixedly provided with rotating shafts respectively, the rotating shafts are rotatably arranged in the adjacent mounting seats respectively, mounting barrels are fixedly arranged outside the rotating shafts on the sides away from each other of the mounting seats respectively, a coil spring is arranged outside each rotating shaft, and the two ends of the coil spring are connected with the rotating shaft and the mounting barrel respectively.

[0024] In the utility model, the front side of the clamping plate is fixedly provided with a handle.

[0025] The principle and effects of the technical scheme are as follows:

[0026] In the initial state, the rear sides of the ends of the two clamping plates close to each other abut against the front side walls of the two movable rods, when the drawings to be displayed are fixed, the handle is held to rotate the clamping plate, the rotating shaft makes the coil spring deform in the process of rotating the clamping plate, the coil spring has elastic force, the end of the drawing to be displayed is arranged between the movable rod and the clamping plate, then the handle is released, the coil spring pushes the rotating shaft and the clamping plate to reset, and the clamping plate and the movable rod clamp the drawing to be displayed.

[0027] Through the above setting, the drawings arranged on the surface of the telescopic frame can be fixed, and the stability of the device during use is improved.

[0028] In the utility model, the front sides of the two horizontal rods located below are fixedly provided with support blocks below the sliding grooves respectively. Through the above setting, the support blocks provide support for the bottom of the drawings, and the staff can conveniently install the drawings. ACCURACY

[0029] Figure 1 It is an isometric view of the utility model in use;

[0030] Figure 2 It is an isometric view of the utility model in idle state;

[0031] Figure 3 It is Figure 2 An enlarged view of A in the middle;

[0032] Figure 4 It isFigure 2 Enlarged view at point B in the middle;

[0033] Figure 5 Disassembly of the components of this utility model Figure 1 ;

[0034] Figure 6 Disassembly of the components of this utility model Figure 2 . Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0036] The reference numerals in the accompanying drawings of the instruction manual include: 10, base; 20, telescopic rod; 21, rod sleeve; 211, screw hole; 22, vertical rod; 23, fastening bolt; 24, sleeve; 25, through hole; 30, fixed rod; 31, horizontal rod; 311, support block; 32, slide groove; 33, mounting groove; 34, connecting seat; 35, connecting shaft; 36, limiting hole; 40, movable rod; 41, slide rod; 42, mounting seat; 43, mounting cylinder; 50, clamping plate; 51, rotating shaft; 52, handle; 60, double-acting screw; 61, slider; 62, connecting rod; 63, disc; 64, grip; 70, pin; 80, coil spring; 100, drawing to be shown.

[0037] Example:

[0038] As attached Figures 1-6 As shown, this utility model discloses a drawing display device, including a base 10 and a telescopic frame. A telescopic rod 20 is fixedly installed on the top of the base 10. The telescopic frame includes a fixed rod 30 and a movable rod 40. A crossbar 31 is fixedly installed on the left and right sides of the upper and lower ends of the fixed rod 30. A groove 32 is recessed on the front side of each crossbar 31. The rear side of the fixed rod 30 is rotatably connected to the top of the telescopic rod 20. Two sets of movable rods 40 are symmetrically arranged on the left and right sides of the fixed rod 30. A sliding rod 41 is fixedly installed on the upper and lower ends of the two movable rods 40 that are close to each other. Each sliding rod 41 is slidably embedded in the corresponding groove 32. A clamping mechanism is provided on the front side of each movable rod 40.

[0039] In this embodiment, the front side of the fixed rod 30 is recessed with a mounting groove 33, and a bidirectional screw 60 is rotatably disposed in the mounting groove 33. The positive and negative threaded sections of the bidirectional screw 60 are respectively symmetrically fitted with sliders 61. The two sliders 61 slide against the rear sidewall of the mounting groove 33. The left and right sides of the two sliders 61 are respectively rotatably connected with connecting rods 62. The ends of each connecting rod 62 are respectively rotatably connected to the inner sidewall of the adjacent movable rod 40. The front sidewalls of the fixed rod 30, the crossbar 31, the movable rod 40, the sliding rod 41, the sliders 61 and the connecting rods 62 are located on the same plane.

[0040] In the embodiment, the lower end of the bidirectional screw rod 60 is rotatably arranged in the bottom wall of the mounting groove 33, and the bottom wall of the bidirectional screw rod 60 is fixedly provided with a disc 63, and the bottom wall of the disc 63 is eccentrically fixedly provided with a handle 64.

[0041] In the embodiment, the telescopic rod 20 comprises a rod sleeve 21 and a vertical rod 22, the bottom of the rod sleeve 21 is fixedly connected with the top of the base 10, and the bottom of the vertical rod 22 is slidingly inserted into the top of the rod sleeve 21.

[0042] In the embodiment, the side wall of the rod sleeve 21 is provided with a through screw hole 211, and a fastening bolt 23 is threadedly arranged in the screw hole 211.

[0043] In the embodiment, the rear side wall of the fixed rod 30 is fixedly provided with a connecting seat 34, the left and right side walls of the connecting seat 34 are respectively fixedly provided with connecting shafts 35, the left and right sides of the top of the vertical rod 22 are respectively fixedly provided with sleeves 24, and the two connecting shafts 35 are respectively rotatably inserted into the corresponding sleeves 24.

[0044] In the embodiment, the side wall of the right connecting shaft 35 is concavely provided with a limiting hole 36, the side wall of the right sleeve 24 is circumferentially and spacedly provided with a plurality of through holes 25 which can be aligned with the limiting hole 36, and a latch 70 is slidingly arranged in the through hole 25.

[0045] In the embodiment, the upper and lower ends of the front side of the movable rod 40 are respectively fixedly provided with mounting seats 42, the clamping mechanism comprises clamping plates 50, the upper and lower ends of the clamping plate 50 are respectively fixedly provided with rotating shafts 51, the two rotating shafts 51 are respectively rotatably arranged in the adjacent mounting seats 42, the sides away from each other of the two mounting seats 42 are respectively fixedly provided with mounting cylinders 43 outside the rotating shafts 51, the outer circumferences of the rotating shafts 51 are respectively sleeved with coil springs 80, and the two ends of the coil spring 80 are respectively connected with the rotating shaft 51 and the mounting cylinder 43.

[0046] In the embodiment, the front side of the clamping plate 50 is fixedly provided with a handle 52.

[0047] In the embodiment, the front sides of the two horizontal rods 31 located below are respectively fixedly provided with support blocks 311 below the sliding grooves 32.

[0048] The specific implementation process is as follows:

[0049] The base 10 is placed on the ground, then the two movable rods 40 are respectively slid according to the size of the to-be-displayed drawing 100, then the two ends of the to-be-displayed drawing 100 are fixed on the surfaces of the two movable rods 40 by the clamping mechanism, then the telescopic rod 20 is stretched according to the actual situation, and finally the fixed rod 30 is rotated.

[0050] After sliding the vertical rod 22 up and down to the appropriate position, turn the fastening bolt 23 so that the end of the fastening bolt 23 abuts against the side wall of the vertical rod 22.

[0051] When the inclination angle of the telescopic frame needs to be adjusted, first pull out the pin 70, then turn the fixed rod 30 so that the limiting hole 36 is aligned with one of the through holes 25, pass the pin 70 through the through hole 25 aligned with the limiting hole 36, and insert the end of the pin 70 into the limiting hole 36.

[0052] In the initial state, the rear side of one end of the two clamping plates 50 abuts against the front side wall of the two movable rods 40 respectively. When the drawing to be displayed is fixed, hold the handle 52 to rotate the clamping plate 50. During the rotation of the clamping plate 50, the shaft 51 makes the coil spring 80 deform, so that the coil spring 80 has elastic force. Then, the end of the drawing to be displayed is placed between the movable rod 40 and the clamping plate 50. Subsequently, the handle 52 is released, and the coil spring 80 pushes the shaft 51 and the clamping plate 50 to reset, so that the clamping plate 50 clamps the drawing to be displayed with the movable rod 40.

[0053] The above-mentioned is only the embodiment of the present application, and the well-known specific technical solutions or characteristics in the scheme are not described in detail. It should be noted that, for those skilled in the art, without departing from the technical scheme of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A drawing display device, characterized by comprising: include: A base, the top of which is fixedly provided with a telescopic rod; A telescopic frame, comprising a fixed rod and a movable rod; The upper and lower ends of the fixed rod are respectively fixed with crossbars on the left and right sides, and the front side of each crossbar is respectively recessed with a sliding groove. The rear side of the fixed rod is rotatably connected to the top of the telescopic rod. Two sets of movable rods are symmetrically arranged on the left and right sides of the fixed rod. Slide rods are fixedly arranged at the upper and lower ends of the two movable rods on the side closest to each other. Each slide rod is slidably embedded in the corresponding slide groove. A clamping mechanism is arranged on the front side of each movable rod.

2. The graphic display apparatus of claim 1 wherein: The front side of the fixed rod is recessed with a mounting groove, and a bidirectional screw is rotatably installed in the mounting groove. The positive and negative thread sections of the bidirectional screw are respectively symmetrically fitted with sliders. The two sliders slide against the rear side wall of the mounting groove. The left and right sides of the two sliders are respectively rotatably connected to connecting rods, and the ends of each connecting rod are respectively rotatably connected to the inner side wall of the adjacent movable rod.

3. The graphic display apparatus of claim 2, wherein: The lower end of the bidirectional screw is rotatably inserted through the bottom wall of the mounting groove. A disc is fixedly installed on the bottom wall of the bidirectional screw, and a handle is eccentrically fixed on the bottom wall of the disc.

4. The graphic display apparatus of claim 3, wherein: The telescopic rod includes a sleeve and a vertical rod. The bottom of the sleeve is fixedly connected to the top of the base, and the bottom of the vertical rod is slidably inserted into the top of the sleeve.

5. The graphic display apparatus of claim 4 wherein: The side wall of the sleeve has a through screw hole, and a fastening bolt is threaded through the screw hole.

6. The graphic display apparatus of claim 5, wherein: A connecting seat is fixedly installed on the rear side wall of the fixed rod, and a connecting shaft is fixedly installed on the left and right side walls of the connecting seat. Sleeves are fixedly installed on the left and right sides of the top of the vertical rod, and the two connecting shafts are rotatably inserted into the corresponding sleeves.

7. The graphic display apparatus of claim 6 wherein: The side wall of the connecting shaft on the right side is recessed with a limiting hole, and the side wall of the sleeve on the right side is provided with a plurality of through holes that can be aligned with the limiting hole along the circumferential direction, and a pin slides through the through hole.

8. The graphic display apparatus of any one of claims 1-7, wherein: Mounting seats are fixedly installed at the upper and lower ends of the front side of the movable rod. The clamping mechanism includes a clamping plate. A rotating shaft is fixedly installed at the upper and lower ends of the clamping plate. The two rotating shafts are rotatably inserted through adjacent mounting seats. Mounting cylinders are fixedly installed on the outer side of the rotating shafts on the side away from each other. A coil spring is sleeved on the outer circumference of each rotating shaft. The two ends of the coil spring are connected to the rotating shaft and the mounting cylinder, respectively.

9. The graphic display apparatus of claim 8 wherein: A handle is fixedly installed on the front side of the clamp.

10. The graphic display apparatus of claim 9, wherein: Support blocks are fixedly installed on the front sides of the two crossbars located below the slide groove.

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