Multifunctional engineering cost drawing measuring device

Abstract

The utility model discloses a multifunctional engineering cost drawing measuring device, and belongs to the technical field of drawing measurement. Comprising a pedestal, a transparent PVC partition plate, a frame plate, a grating ruler and a measuring unit, an air exhaust bin is arranged at the top of the inner side of the pedestal, a drawing display board is arranged on the top surface of the pedestal, and a plurality of straight grooves communicated with the air exhaust bin are formed in the drawing display board; an engineering drawing is attached to the top surface of the drawing display board; an air extracting pump connected with the air extracting bin is fixed outside the pedestal, and a first power switch for controlling the air extracting pump to act is arranged on the pedestal; the transparent PVC partition plate is attached to the top face of the engineering drawing. An inner edge is integrally formed on the top surface of the frame plate, and the inner side of the frame plate is movably clamped with the outer side of the drawing display plate; the bottom surface of the inner edge is in press fit with the top surface of the transparent PVC partition plate; the multifunctional engineering cost drawing measuring device can protect engineering drawings during measurement and marking, and the measurement operation is simple and convenient.

Description

Technical Field

[0001] The utility model specifically relates to a multifunctional drawing measuring device for engineering cost, belonging to the technical field of drawing measuring. Background Art

[0002] Engineering cost drawing measurement refers to accurately measuring and calculating the various engineering quantities required for the engineering project according to the engineering design drawings and relevant specifications and standards to determine the budget and cost of the engineering project; when measuring the existing engineering cost drawings, it is necessary to use a variety of measuring tools. The protractor and ruler on the market are often integrated, and the measuring tool cannot be separated, which makes it cumbersome to carry the measuring tool, and it is not easy to fix the tool during measurement, which makes it easy to deflect during measurement. For this reason, China Patent Authorization Announcement No.: CN221840281U discloses a multifunctional engineering cost drawing measurement device. When used, the measuring tool can be firmly adsorbed on the drawing to facilitate the measurement operation. At the same time, by screwing and rotating the fixing nut on the threaded rod, the protractor can be disassembled outside the measuring ruler, thereby facilitating disassembly and split operation, and improving measurement efficiency; but when marking, the measuring device needs to mark and coat the drawing, and the drawing cannot be used for a second time. In addition, the existing measuring device is still cumbersome to operate when measuring. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes a multifunctional engineering cost drawing measuring device, which can protect the engineering drawings during measurement and marking, and the measurement operation is simple and convenient.

[0004] The utility model provides a multifunctional engineering cost drawing measuring device, comprising:

[0005] A pedestal, wherein an air pumping chamber is arranged on the inner top of the pedestal, a drawing display board is arranged on the top surface of the pedestal, and a plurality of straight grooves communicating with the air pumping chamber are opened on the drawing display board; an engineering drawing is attached to the top surface of the drawing display board; an air pump connected with the air pumping chamber is fixed on the outside of the pedestal, and a first power switch for controlling the action of the air pump is arranged on the pedestal;

[0006] A transparent PVC partition, wherein the transparent PVC partition is attached to the top surface of the engineering drawing;

[0007] The frame plate, the top surface of the frame plate is integrally formed with an inner edge, the inner side of the frame plate is movably engaged with the outer side of the drawing display board; the bottom surface of the inner edge is pressed with the top surface of the transparent PVC partition; the top surface of the frame plate is provided with two scales perpendicular to each other;

[0008] Grating rulers, the grating rulers are provided with two groups, the two groups of grating rulers are vertically arranged outside the frame plate; the grating rulers are arranged on the side away from the scale; each group of grating rulers is provided with two reading heads; a holder is fixed on the reading head, and the holder is slidably installed with the frame plate; a light beam generator is embedded on the inner side of the inner edge of the holder; a second power switch for controlling the opening and closing of the light beam generator is provided on the top surface of the holder;

[0009] A measuring unit, wherein the measuring unit comprises a support plate fixed to the outside of the grating ruler, a control platform and control buttons are arranged on the support plate, a display screen is arranged on the top surface of the control platform, and a controller connected to the control buttons and the display screen is arranged inside the control platform; the grating ruler is connected to the controller;

[0010] During operation, first trigger the first power switch, and the vacuum pump starts working. The vacuum pump provides negative pressure for multiple straight grooves. Then, lay the engineering drawings on the drawing display board. At this time, the engineering drawings can fit tightly with the drawing display board. Whenever the position of the engineering drawings is adjusted, the engineering drawings can be prevented from being lifted or misplaced; then, the transparent PVC partition is movably engaged with the inner side of the frame plate and fits tightly with the inner edge. Then, the frame plate is movably engaged with the drawing display board. At this time, the transparent PVC partition is tightly pressed against the engineering drawings to complete the protection of the engineering drawings; then, according to the measurement requirements, mark the corresponding position of the engineering drawings, then measure the marked position, and feed back the measurement results to the display screen.

[0011] Furthermore, a force-bearing plate is fixed to the outside of the pedestal, and after the frame plate is engaged with the drawing display board, the bottom surface of the frame plate is pressed against the top surface of the force-bearing plate; the frame plate and the support plate can be supported by the force-bearing plate.

[0012] Furthermore, the two reading heads of each group of the grating ruler are arranged on the same scale grating, or are respectively arranged on two opposite scale gratings; when in use, two reading heads are arranged on one scale grating, and the two reading heads can monitor the stroke respectively, so as to obtain the distance between the two reading heads. When two scale gratings are used, when calculating the distance between the two reading heads, it is necessary to add the distance between the two scale gratings.

[0013] Furthermore, the engineering drawings and the transparent PVC partitions are of the same size; during installation, the transparent PVC partitions are first engaged with the frame plate, and when the frame plate is engaged with the drawing display board, the transparent PVC partitions can fully press the engineering drawings, and when the marked transparent PVC partitions are taken out, they can be aligned with other engineering drawings. Since the engineering drawings and the transparent PVC partitions are of the same size, precise alignment can be achieved.

[0014] Furthermore, a positioning scale is provided at the corner of the top surface of the drawing display board. When the engineering drawing is positioned, the vacuum pump is turned on to provide negative pressure to the engineering drawing. Then the engineering drawing can be moved to align with the positioning scale. After positioning is completed, the transparent PVC partition is pressed first, and then the frame plate is snapped in. After assembly is completed, the vacuum pump is turned off to ensure that the engineering drawing and the drawing display board are accurately aligned.

[0015] Compared with the prior art, the multifunctional engineering cost drawing measuring device of the utility model can directly mark the marking points and measurement data on the transparent PVC partition when measuring and marking, and the marked transparent PVC partition can be applied to other engineering cost drawings, the operation is simple and convenient, and the marked transparent PVC partition can be wiped and cleaned with alcohol for secondary use, thereby protecting the engineering drawings; when measuring, the card holder is slid to the measuring position, and the measurement results can be directly displayed on the display screen, which is simple and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the drawing measuring device of the utility model before assembly.

[0017] Figure 2 It is a schematic diagram of the overall structure of the drawing measuring device of the utility model.

[0018] Figure 3 For the utility model Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.

[0019] Figure 4 The utility model is a schematic diagram of measuring the position of marking on engineering drawings.

[0020] Figure numerals: 1. pedestal, 2. drawing display board, 3. straight groove, 4. engineering drawing, 5. vacuum pump, 6. transparent PVC partition, 7. frame plate, 8. scale, 9. grating scale, 10. reading head, 11. first power switch, 12. holder, 13. light beam generator, 14. second power switch, 15. support plate, 16. control platform, 17. control button, 18. display screen, 19. force plate, 20. positioning scale. DETAILED DESCRIPTION

[0021] Example:

[0022] like Figures 1 to 4 The multifunctional engineering cost drawing measuring device shown includes:

[0023] A pedestal 1, wherein an air pumping chamber is arranged on the inner top of the pedestal 1, a drawing display board 2 is arranged on the top surface of the pedestal 1, and a plurality of straight grooves 3 connected to the air pumping chamber are opened on the drawing display board 2; an engineering drawing 4 is attached to the top surface of the drawing display board 2; an air pump 5 connected to the air pumping chamber is fixed to the outside of the pedestal 1, and a first power switch 11 for controlling the action of the air pump 5 is arranged on the pedestal 1;

[0024] A transparent PVC partition 6, wherein the transparent PVC partition 6 is attached to the top surface of the engineering drawing 4;

[0025] The frame plate 7 has an inner edge integrally formed on the top surface of the frame plate 7, and the inner side of the frame plate 7 is movably engaged with the outer side of the drawing display board 2; the bottom surface of the inner edge is pressed with the top surface of the transparent PVC partition 6; the top surface of the frame plate 7 is provided with two scales 8 perpendicular to each other;

[0026] Grating ruler 9, two groups of grating ruler 9 are provided, and the two groups of grating ruler 9 are vertically arranged outside the frame plate 7; the grating ruler 9 is arranged on the side away from the scale 8; each group of grating ruler 9 is provided with two reading heads 10; a holder 12 is fixed on the reading head 10, and the holder 12 is slidably installed with the frame plate 7; the holder 12 is embedded with a light beam generator 13 on the inner side of the inner edge; the top surface of the holder 12 is provided with a second power switch 14 for controlling the opening and closing of the light beam generator 13;

[0027] The measuring unit includes a support plate 15 fixed to the outside of the grating ruler 9, a control platform 16 and a control button 17 are arranged on the support plate 15, a display screen 18 is arranged on the top surface of the control platform 16, and a controller connected to the control button 17 and the display screen 18 is arranged inside the control platform 16; the grating ruler 9 is connected to the controller;

[0028] During operation, the first power switch 11 is triggered first, and the vacuum pump 5 starts working. The vacuum pump 5 provides negative pressure for the plurality of straight grooves 3. Then, the engineering drawings 4 are laid on the drawing display board 2. At this time, the engineering drawings 4 can fit tightly with the drawing display board 2. Whenever the position of the engineering drawings 4 is adjusted, the engineering drawings 4 can be prevented from being lifted or misplaced. Then, the transparent PVC partition 6 is movably engaged with the inner side of the frame plate 7 and fits tightly with the inner edge. Then, the frame plate 7 is movably engaged with the drawing display board 2. At this time, the transparent PVC partition 6 is tightly pressed with the engineering drawings 4 to complete the protection of the engineering drawings 4. Then, according to the measurement requirements, the corresponding positions of the engineering drawings 4 are marked, and then the marked positions are measured, and the measurement results are fed back to the display screen 18.

[0029] When measuring, turn on the second power switch 14, then the light beam generator 13 is turned on, the straight light beam is directed to the inner edge of the opposite side, and then refracted to the scale 8 on the top surface of the frame plate 7. The scale position can be directly observed through the scale 8, so that the manual measurement and marking position can be directly performed; in addition, when measuring the distance between two points, it is divided into straight line measurement or oblique line measurement; straight line measurement is: when the straight line formed between the two points is perpendicular or parallel to the scale 8, such as Figure 4 The straight line formed by the marked position A1 and the marked position A2, the straight line formed by the marked position A1 and the marked position A3, the straight line formed by the marked position A1 and the marked position A2, the straight line formed by the marked position A2 and the marked position A4, and the straight line formed by the marked position A3 and the marked position A4;

[0030] Oblique line measurement, such as the straight line formed by the marked position A1 and the marked position A4, and the straight line formed by the marked position A2 and the marked position A3;

[0031] Among them, when measuring the straight line formed by the marked position A1 and the marked position A3, and the straight line formed by the marked position A2 and the marked position A4, the difference between the data obtained by the two reading heads 10 at the Y1 position and the Y2 position can be calculated, and when measuring the straight line formed by the marked position A1 and the marked position A2, and the straight line formed by the marked position A3 and the marked position A4, the difference between the data obtained by the two reading heads 10 at the X1 position and the X2 position can be calculated;

[0032] When measuring an oblique line, such as measuring the oblique line at marked position A1 and marked position A4, or measuring the oblique line at marked position A2 and marked position A3, the oblique line is taken as a diagonal line, and light is emitted by the light beam generator 13 on the reading head 10 at position X1, the reading head 10 at position X2, the reading head 10 at position Y1, and the reading head 10 at position Y2. Four light beams are used to form a frame at the outer end of the oblique line. Since the straight line measurement data is known data, the length of the oblique line can be directly calculated using trigonometric functions. At the same time, the angle data between the straight line and the oblique line can be synchronously output through trigonometric functions, and the measurement data can be directly fed back to the display screen 18.

[0033] A force-bearing plate 19 is fixed to the outside of the pedestal 1 . After the frame plate 7 is engaged with the drawing display board 2 , the bottom surface of the frame plate 7 is pressed against the top surface of the force-bearing plate 19 . The frame plate 7 and the support plate 15 can be supported by the force-bearing plate 19 .

[0034] The two reading heads 10 of each group of the grating scale 9 are arranged on the same scale grating, or are respectively arranged on two opposite scale gratings; when in use, two reading heads 10 are arranged on one scale grating, and the two reading heads 10 can monitor the stroke respectively, so as to obtain the distance between the two reading heads 10. When two scale gratings are used, when calculating the distance between the two reading heads 10, it is necessary to add the distance between the two scale gratings.

[0035] The engineering drawings 4 and the transparent PVC partitions 6 are of the same size; during installation, the transparent PVC partitions 6 are first engaged with the frame plates 7. When the frame plates 7 are engaged with the drawing display board 2, the transparent PVC partitions 6 can fully press the engineering drawings 4. When the marked transparent PVC partitions 6 are taken out, they can be aligned with other engineering drawings 4. Since the engineering drawings 4 and the transparent PVC partitions 6 are of the same size, precise alignment can be achieved.

[0036] A positioning scale 20 is provided at the corner of the top surface of the drawing display board 2. When the engineering drawing 4 is positioned, the vacuum pump 5 is turned on to provide negative pressure to the engineering drawing 4. Then the engineering drawing 4 can be moved to align the engineering drawing 4 with the positioning scale 20. After the positioning is completed, the transparent PVC partition 6 is pressed first, and then the frame plate 7 is snapped in. After the assembly is completed, the vacuum pump 5 is turned off to ensure that the engineering drawing 4 is accurately aligned with the drawing display board 2.

[0037] The above embodiments are only preferred implementations of the present invention, so any equivalent changes or modifications made according to the structures, features and principles described in the scope of application of the present invention are included in the scope of application of the present invention.

Claims

1. A multifunctional engineering cost drawing measuring device, characterized in that: include: A pedestal, wherein an air pumping chamber is arranged on the inner top of the pedestal, a drawing display board is arranged on the top surface of the pedestal, and a plurality of straight grooves communicating with the air pumping chamber are opened on the drawing display board; an engineering drawing is attached to the top surface of the drawing display board; an air pump connected with the air pumping chamber is fixed on the outside of the pedestal, and a first power switch for controlling the action of the air pump is arranged on the pedestal; A transparent PVC partition, wherein the transparent PVC partition is attached to the top surface of the engineering drawing; The frame plate, the top surface of the frame plate is integrally formed with an inner edge, the inner side of the frame plate is movably engaged with the outer side of the drawing display board; the bottom surface of the inner edge is pressed with the top surface of the transparent PVC partition; the top surface of the frame plate is provided with two scales perpendicular to each other; Grating rulers, the grating rulers are provided with two groups, the two groups of grating rulers are vertically arranged outside the frame plate; the grating rulers are arranged on the side away from the scale; each group of grating rulers is provided with two reading heads; a holder is fixed on the reading head, and the holder is slidably installed with the frame plate; a light beam generator is embedded on the inner side of the inner edge of the holder; a second power switch for controlling the opening and closing of the light beam generator is provided on the top surface of the holder; The measuring unit comprises a support plate fixed to the outside of the grating ruler, a control platform and control buttons are arranged on the support plate, a display screen is arranged on the top surface of the control platform, and a controller connected with the control buttons and the display screen is arranged on the inside of the control platform; the grating ruler is connected to the controller.

2. The multifunctional engineering cost drawing measuring device according to claim 1 is characterized in that: A force-bearing plate is fixed outside the pedestal, and after the frame plate is engaged with the drawing display board, the bottom surface of the frame plate is pressed against the top surface of the force-bearing plate.

3. The multifunctional engineering cost drawing measuring device according to claim 1 is characterized in that: The two reading heads of each group of grating rulers are arranged on the same ruler grating, or are respectively arranged on two opposite ruler gratings.

4. The multifunctional engineering cost drawing measuring device according to claim 1 is characterized in that: The engineering drawing and the transparent PVC partition are the same size.

5. The multifunctional engineering cost drawing measuring device according to claim 1 is characterized in that: Positioning scales are arranged at the corners of the top surface of the drawing display board.

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