Projection device for building engineering design

Abstract

The utility model discloses a constructional engineering design projection device, which comprises an I-shaped table, one side of the top end of the I-shaped table is provided with an installation groove, a projector is installed in the installation groove, one side of the I-shaped table below the projector is provided with a support plate, one side of the support plate is provided with a turnover plate, and the turnover plate is provided with a rotary shaft. And a projection plate is mounted on one side of the top end of the turnover plate. According to the utility model, through cooperation of the supporting plate, the overturning plate and the bearing plate, the projection plate can be directly positioned, and through cooperation of the positioning mechanism, the projection plate can be kept in a state of directly facing the projector, so that the position correction work of the curtain can be realized, the operation is simple, and under the action of the pull rope, the position of the curtain can be corrected. According to the projection plate, folding storage of the curtain can be achieved, the occupied space in the carrying process is reduced, meanwhile, the bearing plate is used for further supporting the overturning plate, and the supporting stability of the projection plate is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of projection devices, in particular to a projection device for architectural engineering design. Background Art

[0002] When designing a construction project, architectural design drawings will be produced. In order to successfully complete the construction project according to the design drawings, it is necessary to frequently compare the architectural design drawings. In order to facilitate viewing and studying the design drawings, a projection device can be used to magnify and view the design drawings;

[0003] Chinese patent authorization announcement number CN218494678U discloses a projection device that is easy to adjust for architectural engineering design, including a movable table, the upper surface of the movable table is provided with a mounting groove, the inner bottom wall of the mounting groove is fixedly connected to an electric telescopic rod 1, the top of the electric telescopic rod 1 is fixedly connected to a projector, the outer surface of the movable table is fixedly connected to a counterweight block, and the bottom surface of the movable table is fixedly connected to an electric telescopic rod 2. It can only be used in a fixed location, but it is difficult to ensure that it is always in the same location when comparing architectural design drawings. It may be necessary to view the drawings in different places, resulting in many limitations in the use of fixedly installed projection devices. The above-mentioned prior art solution has the following shortcomings: the device uses the electric telescopic rod 2 to adjust the position of the screen mechanism, and the overall weight of the screen mechanism needs to be borne by the electric telescopic rod 2, which has a large load-bearing pressure, and the screen position needs to be adjusted separately each time, and its operation is not smooth enough, so there is room for improvement. Utility Model Content

[0004] The utility model aims to provide a projection device for architectural engineering design, so as to solve the problem that the existing projection device for architectural engineering design mentioned in the background technology is not easy to directly locate the screen position.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a construction engineering design projection device, comprising a work-shaped table, a mounting groove is provided on one side of the top of the work-shaped table, and a projector is installed inside the mounting groove, a support plate is installed on one side of the work-shaped table below the projector, and a flip plate is installed on one side of the support plate, a projection plate is installed on one side of the top of the flip plate, and a screen is installed on the side of the projection plate close to the projector, a support block is installed on one side of the projection plate above the screen, a cleaning mechanism is provided on one side of the projection plate below the screen, a load-bearing plate is installed on one side of the work-shaped table below the support plate, and one side of the top of the load-bearing plate is abutted against the bottom end of the flip plate, and both sides of the flip plate are respectively connected to both sides of the projection plate with positioning mechanisms.

[0006] When using a construction engineering design projection device of the present technical solution, the position of the projection board can be directly positioned through the cooperation of the support plate, the flip plate and the load-bearing plate, and the positioning mechanism can be used to keep the projection board facing the projector, thereby realizing the position correction of the screen. The operation is simple, and the screen can be folded and stored under the action of the pull rope to reduce the space occupied during transportation. At the same time, the load-bearing plate is used to further support the flip plate to further ensure the support stability of the projection board.

[0007] Preferably, one side of the flip plate is hinged to one side of the support plate, one side of the top end of the flip plate is hinged to the bottom end of the projection plate, and the length of the flip plate is greater than the length of the projection plate.

[0008] Preferably, the positioning mechanism includes a hinged rod installed on one side of the flip plate, and a positioning hole is provided at one end of the hinged rod, and a positioning groove is correspondingly provided on the outer side of the projection plate on the side of the positioning hole, and a positioning block is installed on the outer side of the hinged rod through a chain, and one end of the positioning block passes through the interior of the positioning hole and the positioning groove.

[0009] Preferably, the cross-section between the hinge rod, the flip plate and the projection plate is a right triangle, the positioning block is detachably connected to the positioning hole and the positioning groove, and the hinge rod is hinged to the flip plate.

[0010] Preferably, a groove is provided on a side of the top of the work-shaped table away from the projector, and a pull rope is installed inside the groove. The cross-sectional diameter of the pull rope is smaller than the inner diameter of the positioning hole, and the pull rope is detachably connected to the hinge rod.

[0011] Preferably, the cleaning mechanism includes two sets of slide grooves opened on one side of the projection board, and a U-shaped slide bar is connected between the slide grooves. A cleaning brush is installed on the side of the U-shaped slide bar close to the screen, and one side of the cleaning brush is against the outer side of the screen.

[0012] Preferably, the U-shaped sliding bar is closer to the screen than the supporting block, and the U-shaped sliding bar forms an up-and-down sliding structure with the projection board through the action of the sliding groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the architectural engineering design projection device is not only convenient for positioning the screen, but also ensures its support stability, and is convenient for automatic cleaning of the screen;

[0014] (1) The support plate, the flip plate and the load-bearing plate are used to directly locate the position of the projection plate. The positioning mechanism is used to keep the projection plate facing the projector, thereby realizing the position calibration of the screen. The operation is simple, and the screen can be folded and stored under the action of the pull rope to reduce the occupied space during transportation. At the same time, the load-bearing plate is used to further support the flip plate to further ensure the support stability of the projection plate.

[0015] (2) The projection board and the flip board are hinged to facilitate folding and refolding the projection board, and then the U-shaped slide bar moves up and down under the action of gravity, so that when the screen is stored or unfolded, the cleaning brush can automatically scrape the surface of the screen to clean the dust on the surface of the screen and ensure the clarity of the screen projection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 3 For the utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the cleaning mechanism of the utility model;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the hinged rod of the utility model.

[0022] Explanation of the reference numerals in the figure: 1. workbench; 2. mounting groove; 3. projector; 4. support plate; 5. flip plate; 6. projection plate; 7. screen; 8. support block; 9. positioning mechanism; 901. hinged rod; 902. positioning hole; 903. positioning block; 904. positioning groove; 10. load-bearing plate; 11. groove; 12. pull rope; 13. cleaning mechanism; 1301. U-shaped slide bar; 1302. slide groove; 1303. cleaning brush. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 , the utility model provides an embodiment: a construction engineering design projection device, including a work-shaped table 1;

[0025] A groove 11 is provided on the side of the top of the workbench 1 away from the projector 3, and a pull rope 12 is installed inside the groove 11. The cross-sectional diameter of the pull rope 12 is smaller than the inner diameter of the positioning hole 902, and the pull rope 12 is detachably connected to the hinge rod 901;

[0026] Specifically, Figure 1 As shown, when in use, the connection between the pull rope 12 and the positioning hole 902 is utilized to pull the hinge rod 901, so that the flip plate 5 drives the projection plate 6 to remain vertical, so that it is stored on one side of the work-shaped table 1 for easy handling;

[0027] A mounting groove 2 is provided on one side of the top of the work-shaped table 1, and a projector 3 is installed inside the mounting groove 2. A support plate 4 is installed on one side of the work-shaped table 1 below the projector 3, and a flip plate 5 is installed on one side of the support plate 4.

[0028] One side of the flip plate 5 is hinged to one side of the support plate 4, one side of the top end of the flip plate 5 is hinged to the bottom end of the projection plate 6, and the length of the flip plate 5 is greater than the length of the projection plate 6;

[0029] Specifically, Figure 1 , Figure 2 As shown, when in use, under the hinged action, the flip plate 5 and the projection plate 6 are flipped, and the supporting effect of the load-bearing plate 10 is to improve the supporting stability of the flip plate 5 for the projection plate 6 and ensure its pressure-bearing effect;

[0030] A projection plate 6 is installed on one side of the top of the flip plate 5, and a screen 7 is installed on the side of the projection plate 6 close to the projector 3, a support block 8 is installed on one side of the projection plate 6 above the screen 7, and a cleaning mechanism 13 is provided on one side of the projection plate 6 below the screen 7;

[0031] The cleaning mechanism 13 includes two sets of slide grooves 1302 opened on one side of the projection board 6, and a U-shaped slide bar 1301 is connected between the slide grooves 1302. A cleaning brush 1303 is installed on the side of the U-shaped slide bar 1301 close to the screen 7, and one side of the cleaning brush 1303 is against the outer side of the screen 7.

[0032] The U-shaped slide bar 1301 is closer to the screen 7 than the support block 8, and the U-shaped slide bar 1301 forms an up-and-down sliding structure with the projection board 6 through the action of the slide groove 1302;

[0033] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, when in use, the sliding connection is used to improve the smoothness of the movement of the U-shaped slide bar 1301, and the support block 8 is used to avoid contact friction between the U-shaped slide bar 1301 and the flip plate 5, so as to further ensure the cleaning smoothness of the cleaning brush 1303;

[0034] A load-bearing plate 10 is installed on one side of the work-shaped table 1 below the support plate 4, and one side of the top of the load-bearing plate 10 abuts against the bottom end of the flip plate 5, and both sides of the flip plate 5 are respectively connected to the two sides of the projection plate 6 with positioning mechanisms 9;

[0035] The positioning mechanism 9 includes a hinge rod 901 installed on one side of the flip plate 5, and a positioning hole 902 is opened at one end of the hinge rod 901, and a positioning groove 904 is correspondingly opened on the outer side of the projection plate 6 on the side of the positioning hole 902, and a positioning block 903 is installed on the outer side of the hinge rod 901 through a chain, and one end of the positioning block 903 passes through the interior of the positioning hole 902 and the positioning groove 904;

[0036] The cross section between the hinge rod 901, the flip plate 5 and the projection plate 6 is a right triangle, the positioning block 903 and the positioning hole 902 and the positioning groove 904 are detachably connected, and the hinge rod 901 and the flip plate 5 are hinged;

[0037] Specifically, Figure 1 , Figure 2 and Figure 3 , Figure 5 As shown, when in use, the function at 1901 is to limit the position of the projection board 6 to ensure that it can face the front of the projector 3 to facilitate projection.

[0038] Working principle: When the utility model is used, first, the flip plate 5 is folded to the top of the load-bearing plate 10, and then the projection plate 6 is flipped. By rotating the hinge rod 901, the positioning block 903 is inserted into the positioning hole 902 and the positioning groove 904, so that the hinge rod 901 can be used to limit the flip angle of the projection plate 6, so that the screen 7 and the projector 3 are kept facing each other, so that the projector 3 can project the construction design drawings onto the screen 7;

[0039] Secondly, after the projection is completed, the positioning block 903 is pulled out, and the projection board 6 is turned over to the flip board 5, so that one side of the support block 8 is in contact with the top of the flip board 5, and then the flip board 5 is turned upward, and one end of the pull rope 12 is connected to the positioning hole 902, so that the flip board 5 can be fixed under the pulling action of the pull rope 12 and the positioning hole 902, so that the curtain 7 can be turned over to one side of the work-shaped table 1 for storage and movement;

[0040] Finally, during the flipping process of the screen 7, due to the large flipping angle of the screen 7, the U-shaped slide bar 1301 slides up and down along the slide groove 1302 under the action of gravity, so as to drive the cleaning brush 1303 to scrape and clean the outside of the screen 7, thereby ensuring the cleanliness of the surface of the screen 7 to ensure the projection effect.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A projection device for architectural engineering design, comprising a work-shaped table (1), characterized in that: A mounting groove (2) is provided on one side of the top of the work-shaped table (1), and a projector (3) is installed inside the mounting groove (2); a support plate (4) is installed on one side of the work-shaped table (1) below the projector (3), and a flip plate (5) is installed on one side of the support plate (4); a projection plate (6) is installed on one side of the top of the flip plate (5), and a screen (7) is installed on the side of the projection plate (6) close to the projector (3); a support block (8) is installed on one side of the projection plate (6) above the screen (7); a cleaning mechanism (13) is provided on one side of the projection plate (6) below the screen (7); a load-bearing plate (10) is installed on one side of the work-shaped table (1) below the support plate (4), and one side of the top of the load-bearing plate (10) abuts against the bottom of the flip plate (5); and positioning mechanisms (9) are connected to two sides of the projection plate (6) on both sides of the flip plate (5).

2. The architectural engineering design projection device according to claim 1, characterized in that: One side of the flip plate (5) is hinged to one side of the support plate (4), one side of the top end of the flip plate (5) is hinged to the bottom end of the projection plate (6), and the length of the flip plate (5) is greater than the length of the projection plate (6).

3. The architectural engineering design projection device according to claim 1, characterized in that: The positioning mechanism (9) comprises a hinge rod (901) installed on one side of the flip plate (5), and a positioning hole (902) is provided at one end of the hinge rod (901), and a positioning groove (904) is correspondingly provided on the outer side of the projection plate (6) on the side of the positioning hole (902), and a positioning block (903) is installed on the outer side of the hinge rod (901) through a chain, and one end of the positioning block (903) passes through the interior of the positioning hole (902) and the positioning groove (904).

4. The architectural engineering design projection device according to claim 3, characterized in that: The cross section between the hinge rod (901), the flip plate (5) and the projection plate (6) is a right triangle, the positioning block (903) and the positioning hole (902) and the positioning groove (904) are detachably connected, and the hinge rod (901) and the flip plate (5) are hinged.

5. The architectural engineering design projection device according to claim 1, characterized in that: A groove (11) is provided on a side of the top of the workbench (1) away from the projector (3), and a pull rope (12) is installed inside the groove (11). The cross-sectional diameter of the pull rope (12) is smaller than the inner diameter of the positioning hole (902), and the pull rope (12) is detachably connected to the hinge rod (901).

6. The architectural engineering design projection device according to claim 1, characterized in that: The cleaning mechanism (13) comprises two groups of slide grooves (1302) opened on one side of the projection plate (6), and a U-shaped slide bar (1301) is connected between the slide grooves (1302). A cleaning brush (1303) is installed on the side of the U-shaped slide bar (1301) close to the screen (7), and one side of the cleaning brush (1303) is against the outer side of the screen (7).

7. The architectural engineering design projection device according to claim 6, characterized in that: The U-shaped sliding bar (1301) is closer to the screen (7) than the supporting block (8), and the U-shaped sliding bar (1301) forms an up-and-down sliding structure with the projection board (6) through the action of the sliding groove (1302).

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