CN114009978A

CN114009978A - Engineering drawing display device

Info

Publication number: CN114009978A
Application number: CN202111289799.7A
Authority: CN
Inventors: 马宏; 赵成刚; 贾慧慧; 杜林冬; 吴宏宇; 刘梦尧; 李鸿强; 张东林; 郑萱萱; 刘月君
Original assignee: Hebei University of Architecture
Current assignee: Hebei University of Architecture
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-02-08

Abstract

The technical scheme of the invention relates to an engineering drawing display device which comprises a pressing plate system, a beam system, expansion bolts, clamps and a weight, wherein the beam system is horizontally arranged, the beam system is fixed on a wall body through the expansion bolts, and the beam system is positioned above a blackboard and is in contact with the upper boundary of the blackboard; 2 pressing plate systems are arranged, the pressing plate systems are arranged on two sides of the beam system, and weights are hung on the lower portion of the pressing plate systems; the blackboard can flatly display the drawing on the blackboard, is convenient to read, and is particularly suitable for use environments such as graduation design and answer; the novel teaching desk can be additionally installed in the existing classroom, and can be used for a long time after being installed. The invention is designed with a storage function, can be stored when not used, is not easy to lose, and does not influence the use function of the original classroom blackboard; the design has hold-down spring and heavy object couple, when the blackboard does not have magnetic force to adsorb, can keep the packing force to the drawing through hanging heavy object cooperation hold-down spring, is applicable to the blackboard that does not have magnetic force to adsorb.

Description

Engineering drawing display device

Technical Field

The technical scheme of the invention relates to a device for displaying paper drawings, in particular to an engineering drawing display device.

Background

Paper drawings are applied in a large number in links such as engineering application, teaching show and graduation design answer, and because some drawings are large in breadth, the reading is inconvenient, and the paper drawings often need to be hung for reading. Particularly, in the graduation design and answer link of colleges and universities, a large number of design drawings need to be displayed, and the annual graduation season is the peak period of the drawing display. Because the drawing is often folded, curly in the in-process of storage transportation, the drawing is difficult to smooth show during the show, influences reading and appraisal. In actual operation, the magnetic button is often used for adsorbing the picture paper on the blackboard for displaying, but the magnetic button belongs to bulk parts, is often lost and is often difficult to find when in use.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the engineering drawing display device is capable of displaying the drawing smoothly on a blackboard and facilitating reading.

The technical scheme adopted by the invention for solving the technical problem is an engineering drawing display device which comprises a pressing plate system, a beam system, expansion bolts, clamps and a weight, wherein the beam system is horizontally arranged and fixed on a wall body through the expansion bolts, and the beam system is positioned above a blackboard and is in contact with the upper boundary of the blackboard; 2 pressing plate systems are arranged, the pressing plate systems are arranged on two sides of the beam system, and weights are hung on the lower portion of the pressing plate systems;

furthermore, the main structure of the beam system is designed into a stretching body with a bow-shaped section, the upper part of the beam system is designed into a vertical upward edge, the rear part of the beam system is provided with a rear wall, the rear wall is provided with a through hole, an expansion bolt fixes the beam system on a wall body through the through hole, the lower part of the rear wall is tightly attached to the upper part of the blackboard, the lower part of the beam system is provided with a lower edge, the lower edge is positioned in front of the blackboard, and the lower edge is riveted with a plurality of clips;

further, the plate pressing system comprises a vertical plate, a butterfly screw, a spring, a hanging piece, two nuts, a long bolt, a strong magnet and a hook, wherein the hanging piece is designed into a stretching body with an inverted J-shaped cross section, a through threaded hole and a through round hole are designed on one side wall plate of the hanging piece, the butterfly screw is screwed in the threaded hole, the main structure of the vertical plate is designed into a long strip shape, 2 times of bending is designed on the upper portion of the vertical plate, a through hole is designed at the upper end of the vertical plate, a notch with a right side is designed at the upper middle of the vertical plate, an interference hole is designed at the lower end of the vertical plate, a hook is designed at the tail end of the vertical plate and is located at the left side of the tail end of the vertical plate, the hook at the tail end of the vertical plate and the bending at the upper portion of the vertical plate keep the same orientation, the long bolt sequentially penetrates through the round hole, the through hole and the spring and then is screwed with the two nuts, the long bolt and the round hole are in clearance fit, the long bolt and the through hole are in clearance fit, the hanging piece, The vertical plate, the spring and the double nuts are assembled together, the direction of the hook is kept outward, the strong magnet is installed in the interference hole and forms an interference fit relation with the interference hole, the bottom surface of the strong magnet is flush with the back surface of the vertical plate, and a heavy object is hung on the hook at the tail end of the vertical plate;

further, the hanging piece is hung on the upper edge, the butterfly screw is screwed with the threaded hole and tightly props against the upper edge, the connection of the pressing plate system on the beam system is completed, the vertical plate rotates to be in a vertical state, the back face of the vertical plate is kept to be attached to the blackboard, and the positions of the double nuts are adjusted to enable the spring to be in a pressing state;

further, 2 risers are all inwards rotated to the horizontality, and left side riser pressure is on the right side riser, and on the terminal clip that carries on of left side riser, the terminal couple of right side riser stretches out via the breach department of left side riser, realizes accomodating of device.

Above-mentioned engineering drawing display device, the screw hole is the M8 screw hole.

Above-mentioned engineering drawing display device, the thumb screw is M8 screw.

Above-mentioned engineering drawing display device, the total length of crossbeam system is 1300 millimeters, the total length of clamp plate system is 1100 millimeters.

Above-mentioned engineering drawing display device, a plurality of clip is 5 clips.

The above-mentioned engineering drawing showing device is a device for showing engineering drawings, the components of which are well known to those skilled in the art and are obtained by a well-known way. The method of joining the components is within the skill of the art.

Compared with the prior art, the engineering drawing display device has the beneficial effects that:

(1) the blackboard can smoothly display the drawing on the blackboard, is convenient to read, and is particularly suitable for use environments such as graduation design and answer.

(2) The invention can be installed in the prior classroom, is simple to implement and can be used for a long time after being installed once.

(3) The invention is designed with a storage function, can be stored when not in use, is not easy to lose, and does not influence the use function of the original classroom blackboard.

(4) The invention is provided with the hold-down spring and the weight hook, when the blackboard has no magnetic force adsorption, the hold-down spring can be matched with the hold-down spring to keep the pressing force on the drawing by hanging the weight, and the invention is suitable for the blackboard without magnetic force adsorption.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic diagram of an installation position of an engineering drawing display device according to the invention.

Fig. 2 is a schematic diagram of an engineering drawing showing device for showing drawing states.

Fig. 3 is an enlarged schematic view of an upper structure of the engineering drawing display device of the present invention.

Fig. 4 is a schematic view of a beam system.

FIG. 5 is an overall schematic view of a platen system.

FIG. 6 is an enlarged schematic view of the upper end portion of the platen system.

FIG. 7 is an enlarged schematic view of the lower portion of the platen system.

Fig. 8 is a schematic view of a riser structure.

FIG. 9 is a schematic view of a platen system hanging weights.

FIG. 10 is an enlarged schematic view of the rear suspension end of the platen system for suspending weights.

FIG. 11 is a schematic view of the mounting structure of the platen system and the beam system.

Fig. 12 is an enlarged schematic view of the mounting structure of the platen system and the beam system.

FIG. 13 is a schematic view of a folded state of the engineering drawing showing device according to the present invention.

FIG. 14 is a schematic diagram of the right end of the engineering drawing showing device in a folded state. .

FIG. 15 is a schematic view of the left end of the folding state of the engineering drawing showing device according to the present invention. .

Fig. 16 is a front structural view of the pendant.

Fig. 17 is a back structural view of the pendant.

In the figure: 1. the novel wall comprises a wall body, 2 parts of the device, 3 parts of a blackboard, 4 parts of a pressing plate system, 5 parts of a drawing, 6 parts of a beam system, 7 parts of expansion bolts, 8 parts of clamps, 9 parts of a weight, 40 parts of a vertical plate, 41 parts of a butterfly screw, 42 parts of a spring, 43 parts of a hanging piece, 44 parts of double nuts, 45 parts of long bolts, 46 parts of strong magnets, 47 parts of a hook, 60 parts of a rear wall, 61 parts of an upper edge, 62 parts of a lower edge, 63 parts of a through hole, 401 parts of an interference hole, 402 parts of a notch, 403 parts of a through hole, 431 parts of a threaded hole and 432 parts of a round hole.

Detailed Description

The embodiment shown in fig. 1-3 and fig. 9-10 shows that an engineering drawing display device comprises a pressing plate system 4, a beam system 6, expansion bolts 7, clamps 8 and weights 9, wherein the beam system 6 is horizontally arranged, the beam system 6 is fixed on a wall body 1 through the expansion bolts 7, the beam system 6 provides a main body supporting function for the device 2, and the beam system 6 is located above a blackboard 3 and is in contact with the upper boundary of the blackboard 3; the number of the pressing plate systems 4 is 2, the pressing plate systems 4 are arranged on two sides of the beam system 6, the pressing plate systems 4 are used for pressing two side edges of the drawing 5 to achieve the flattening of the drawing 5, the weight 9 is hung on the lower portion of the pressing plate systems 4, and when the blackboard 3 does not have a magnetic adsorption function, the weight 9 is matched with the pressing spring 42 to provide pressing force for pressing the drawing 5;

as shown in fig. 3 to 4, the main structure of the beam system 6 is designed as an elongated body with a "bow" shaped cross section, the upper part of the beam system 6 is designed as an upper edge 61 vertically upward, the upper edge 61 is used for installing the pressing plate system 4, the rear part of the beam system 6 is provided with a rear wall 60, the rear wall 60 is provided with a through hole 63, the expansion bolt 7 fixes the beam system 6 on the wall 1 through the through hole 63, the lower part of the rear wall 60 is tightly attached to the upper part of the blackboard 3, a cavity right in front of the rear wall 60 is used for accommodating the pressing plate system 4, the lower part of the beam system 6 is provided with a lower edge 62, the lower edge 62 is located in front of the blackboard 3, the lower edge 62 is riveted with a plurality of clips 8, and the clips 8 are used for clipping the upper edge of the drawing 5;

as shown in fig. 5 to 10 and 16 to 17, the pressing plate system 4 includes a vertical plate 40, a thumb screw 41, a spring 42, a hanging member 43, a double nut 44, a long bolt 45, a strong magnet 46, and a hook 47, wherein the hanging member 43 is designed as an extended body with an inverted "J" shaped cross section, the hanging member 43 is connected to an upper edge 61, a through threaded hole 431 and a through round hole 432 are designed on a side wall plate of the hanging member 43, the thumb screw 41 is screwed into the threaded hole 431, the thumb screw 41 is used for fastening the hanging member 43 to the upper edge 61, the main structure of the vertical plate 40 is designed to be a long strip shape, the upper portion of the vertical plate 40 is designed with 2 times of bending, the 2 times of bending form a space on the upper portion of the vertical plate 40, the space can make an installation space for the clip 8, so as to facilitate installation, and the 2 times of bending structure can also ensure that the pressing force of the pressing spring 42 is transmitted to the middle of the vertical plate 40, and avoid the middle portion of the vertical plate 40 from being bent and bulging; the upper end part of the vertical plate 40 is designed with a through hole 403, the upper middle part of the vertical plate 40 is designed with a notch 402 which is inclined to the right side, the notch 402 is used for accommodating the vertical plate 40, the lower end of the vertical plate 40 is designed with an interference hole 401, the tail end of the vertical plate 40 is designed with a hook 47, the hook 47 is positioned at the left side of the tail end of the vertical plate 40, the hook 47 at the tail end of the vertical plate 40 and the bending part at the upper part of the vertical plate 40 keep the same orientation, the long bolt 45 sequentially passes through the round hole 432, the through hole 403 and the spring 42 and then is screwed with the double nuts 44, the long bolt 45 and the round hole 432 are in clearance fit, the long bolt 45 and the through hole 403 are in clearance fit, the long bolt 45 sequentially assembles the hanging part 43, the vertical plate 40, the spring 42 and the double nuts 44 together and keeps the direction of the hook 47 facing outwards, the strong magnet 46 is installed in the interference hole 401 and forms an interference fit relation with the interference hole 401, the bottom surface of the strong magnet 46 and the back surface of the vertical plate 40 keep level and convenient for magnetic adsorption to the maximum degree, the weight 9 is hung on a hook 47 at the tail end of the vertical plate 40, and when the blackboard 3 has no magnetic adsorption function, the weight 9 is matched with the compression spring 42 to provide pressing force for compressing the drawing 5;

as shown in fig. 11 to 12, the hanging member 43 is hooked on the upper edge 61, and the thumb screw 41 is screwed with the threaded hole 431 and tightly props against the upper edge 61, so as to complete the connection of the pressing plate system 4 on the beam system 6; the vertical plate 40 rotates to be vertical, the back surface of the vertical plate 40 is kept to be attached to the blackboard 3, and the position of the double nuts 44 is adjusted to enable the spring 42 to be in a pressing state;

as shown in fig. 13-15, 2 risers 40 are all rotated inwards to the horizontal state, the left riser 40 is pressed on the right riser 40, the tail end of the left riser 40 is carried with the clamp 8, and the hook 47 at the tail end of the right riser 40 extends out through the notch 402 of the left riser 40, so that the storage of the device is realized, the occupation of the space when the device is not used is reduced, and the normal use of the blackboard 3 is not influenced.

Example 1

According to the engineering drawing display device shown in the above fig. 1 to 17, the threaded hole 431 is an M8 threaded hole 431, the thumb screw 41 is an M8 screw, the total length of the beam system 6 is 1300 mm, the total length of the pressing plate system 4 is 1100 mm, and the plurality of clips 8 are 5 clips 8.

Example 2

When the device 2 is used on a blackboard 3 without magnetic force adsorption or a common wall surface, a weight 9 is hung on the hook 47 and matched with the compression spring 42 to provide pressing force for flattening the drawing 5. The rest of the structure was the same as in example 1.

Example 3

The length of the beam system 6 is the same as that of the blackboard 3, the number and the positions of the pressing plate systems 4 mounted on the beam system 6 are selected according to the size and the number of the display drawings 5, and the rest structures are consistent with those of the embodiment 1.

Example 4

The position of the double nuts 44 is adjusted when the device 2 is stored, so that a plurality of the pressing plate systems 4 are stacked in the front-rear direction and are all stored in the cavity in the middle of the cross beam system 6.

Example 5

Set up a plurality of interference holes 401 on the riser 40, a plurality of interference holes 401 are all not in the well lower part of riser 40, and every interference hole 401 all installs strong magnet 46, guarantees that the adsorption affinity is even, and all the other structures are unanimous with embodiment 1.

The following is a single use example.

In a first step, the device 2 is installed

The present apparatus 2 is installed as described herein.

Second, show drawing 5

Clamping the upper boundary of the drawing 5 to be displayed in a clamp 8, vertically unfolding the drawing 5, then unscrewing a thumb screw 41, adjusting the position of a pressing plate system 4, screwing the thumb screw 41 after the pressing plate system 4 is aligned with the left boundary of the drawing 5, fixing a hanging piece 43 on a beam system 6, rotating a vertical plate 40 to a vertical position, enabling the vertical plate 40 to press the left boundary of the drawing 5, enabling a strong magnet 46 to be adsorbed on a blackboard 3, adjusting the position of a double nut 44 to enable a spring 42 to be in a pressing state, and further enabling the vertical plate 40 to uniformly press the left boundary of the drawing 5; after the drawing 5 is laid to be flat manually, another pressing plate system 4 is operated again to press the right boundary of the drawing 5 tightly. Three edges of the drawing 5 are effectively clamped, and smooth display of the drawing 5 is realized.

Thirdly, simultaneously displaying a plurality of drawings 5

Install a plurality of these devices 2 simultaneously, repeated second step can demonstrate many drawings 5 simultaneously, perhaps demonstrates many drawings 5 simultaneously according to embodiment 3's structure.

Fourthly, taking down the drawing 5

And (3) opening the clamp 8, taking out the upper boundary of the drawing 5, then opening the strong magnet 46 on the left side, taking out the left boundary of the drawing 5, taking out the right boundary of the drawing 5 by the same operation, and finishing the taking-off of the drawing 5.

The fifth step, take in this device 2

After the use is finished, the vertical plates 40 on the left side and the right side are rotated to the horizontal position, then the thumb screws 41 are unscrewed, the left position and the right position of the pressing plate system 4 are adjusted, the hooks 47 of the vertical plates 40 on the right side extend out through the notches 402 of the vertical plates 40 on the left side, the storage space is saved, and then the thumb screws 41 are screwed tightly. The front riser 40 is mounted on the adjacent clip 8, or the two nuts 44 on both sides are adjusted to store the pressing plate system 4 in the cavity in the middle of the beam system 6, thereby completing the storage.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an engineering drawing display device, includes clamp plate system, crossbeam system, expansion bolts, clip, heavy object, its characterized in that: the beam system is horizontally arranged, is fixed on the wall body through expansion bolts, is positioned above the blackboard and is in contact with the upper boundary of the blackboard; 2 pressing plate systems are arranged, the pressing plate systems are arranged on two sides of the beam system, and weights are hung on the lower portion of the pressing plate systems;

2. The engineering drawing display device of claim 1, wherein: the threaded hole is an M8 threaded hole.

3. The engineering drawing display device of claim 1, wherein: the thumb screws are M8 screws.

4. The engineering drawing display device of claim 1, wherein: the total length of the beam system is 1300 mm, and the total length of the platen system is 1100 mm.

5. The engineering drawing display device of claim 1, wherein: the plurality of clips is 5 clips.

6. The engineering drawing display device of claim 1, wherein: and a weight is hung on the hook and matched with the compression spring to provide pressing force for flattening the drawing.

7. The engineering drawing display device of claim 1, wherein: the length of the beam system is the same as that of the blackboard, and the number and the positions of the pressing plate systems mounted on the beam system are selected according to the size and the number of the displayed drawings.

8. The engineering drawing display device of claim 1, wherein: the double nuts enable the plurality of pressing plate systems to be stacked in the front-rear direction through adjusting the positions, and the pressing plate systems are all accommodated in a cavity in the middle of the cross beam system.

9. The engineering drawing display device of claim 1, wherein: set up a plurality of interference holes on the riser, a plurality of interference holes are all not in the well lower part of riser, and strong magnet is all installed in every interference hole.