Classroom electronic whiteboard all-in-one machine

Abstract

The utility model relates to the technical field of electronic whiteboards, in particular to a classroom electronic whiteboard all-in-one machine which comprises a rectangular frame, fixed blackboards fixedly installed on the two sides in the rectangular frame, a first sliding blackboard, a second sliding blackboard and an electronic whiteboard fixed to the middle of the rectangular frame. Two symmetrical sliding groove sets are formed in each of the top and the bottom of the rectangular frame, each sliding groove set comprises two transversely-arranged sliding grooves, guide grooves are formed in the ends of the sliding grooves, chamfers are formed in the opposite sides of the two fixed blackboards, and first sliding columns are fixedly connected to the two sides of the top and the two sides of the bottom of the first sliding blackboard. The sliding blackboard has the advantages that when the sliding blackboards are moved, the fixed blackboards cannot affect movement of the sliding blackboards, so that the two sliding blackboards can be smoothly opened in a sliding mode, when the sliding blackboards horizontally move front and back, the first belt can still achieve the purpose of transmission, and the sliding blackboards can smoothly and synchronously slide to be opened or closed.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic whiteboards, in particular to an all-in-one electronic whiteboard machine for classrooms. Background Art

[0002] Most of the existing electronic whiteboard all-in-one machines are double-opening type, with the touch screen placed in the center. The double-opening blackboards are mostly composed of a track frame, two fixed blackboards and two sliding blackboards. The two fixed blackboards are fixed on both sides of the inner cavity of the track frame, while the two sliding blackboards are installed in the middle of the track frame.

[0003] Chinese patent CN220582030U discloses an all-in-one electronic whiteboard for classrooms. The all-in-one electronic whiteboard for classrooms realizes that when the electronic components need to be used, the second blackboard and the third blackboard can be opened for easy use through the blackboard assembly. When they are not needed, the second blackboard, the third blackboard and the first blackboard can be assembled into a whole blackboard through the cooperation of the movable groove, thereby increasing the usable area of ​​the blackboard. However, in the all-in-one electronic whiteboard for classrooms, the second blackboard and the third blackboard are slidably connected in the movable groove through sliding columns at the upper and lower ends, and the movable groove is composed of a first movable groove and a second movable groove. When the second blackboard and the third blackboard slide, after the sliding column on one side enters the second movable groove from the first movable groove, the second blackboard and the third blackboard are in an inclined state. Therefore, there are two problems in the translation process of the second blackboard and the third blackboard:

[0004] First, when the second and third blackboards move, the backs thereof will conflict with the sides of the first blackboard, causing the second and third blackboards to be unable to slide smoothly;

[0005] Secondly, the first rack and the second rack are fixedly connected to the sliding column, so when the second blackboard and the third blackboard are tilted, the first rack and the second rack will tilt accordingly, and the first rack and the second rack are engaged with the flip gear, so the flip gear will make the first rack and the second rack unable to tilt, thereby failing to achieve the purpose of synchronous sliding of the second blackboard and the third blackboard. Utility Model Content

[0006] The purpose of the present invention is to at least solve one of the technical defects described in the background technology.

[0007] To this end, one purpose of the present invention is to propose an all-in-one electronic whiteboard for classrooms, aiming to solve the problem in the prior art that the second blackboard and the third blackboard of the all-in-one electronic whiteboard for classrooms cannot slide smoothly and cannot slide synchronously.

[0008] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the present invention provides an all-in-one electronic whiteboard for a classroom, comprising a rectangular frame, fixed blackboards fixedly installed on both sides of the rectangular frame, a first sliding blackboard and a second sliding blackboard slidably connected to the rectangular frame, and an electronic whiteboard fixed in the middle of the rectangular frame, wherein the top and bottom of the rectangular frame are provided with two groups of symmetrical slide groove groups, each group of the slide groove groups includes two laterally arranged slide grooves, the ends of the slide grooves are provided with guide grooves, and the opposite sides of the two fixed blackboards are provided with chamfers, the top and bottom sides of the first sliding blackboard are fixedly connected to first sliding columns, and the top of a first sliding column near the second sliding blackboard is fixedly connected to a high base. The top and bottom sides of the second sliding blackboard are fixedly connected to the second sliding column, the top of the second sliding blackboard away from the first sliding blackboard is fixedly connected to the low base one, the tops of the high base one and the low base one are both threadedly connected to positioning bolts, the outer surfaces of the positioning bolts are sleeved with a splint, one side of the top of the rectangular frame is fixedly connected to the first positioning seat, one side of the first positioning seat is fixedly connected to the first positioning shaft, the outer surface of the first positioning shaft is rotatably and slidably connected to the first guide wheel, one end of the first positioning shaft is fixedly connected to the first limit block, the outer surface of the first guide wheel is sleeved with the first belt, and the two ends of the first belt are respectively fixed to the top of the high base one and the low base one.

[0009] The beneficial effects are:

[0010] First, each set of slide grooves includes two slide grooves, and a guide groove is provided at the end of the slide groove. Therefore, when the sliding blackboard is moved, the sliding blackboard will move backward as a whole without tilting. Therefore, when the sliding blackboard is moved, the fixed blackboard will not affect the movement of the sliding blackboard, thereby ensuring that the two sliding blackboards can slide open smoothly and reveal the electronic whiteboard;

[0011] Secondly, the first guide wheel is rotatably and slidably connected to the surface of the first positioning shaft, so that the first belt can slide back and forth on the surface of the first positioning shaft along with the first guide wheel, so that when the sliding blackboard moves back and forth during movement, the first belt can still achieve the purpose of transmission, so that the sliding blackboard can smoothly and synchronously slide open or close;

[0012] Third, after the two ends of the first belt are respectively overlapped on the top of the high base one and the low base one, the positioning bolts are tightened to press the clamps down to clamp the two ends of the first belt. Therefore, when installing the first belt, one end of the first belt can be fixed first, and then the other end of the first belt can be fixed after the first belt is tightened, so that the first belt is tight enough to ensure that the first sliding blackboard and the second sliding blackboard can slide stably and synchronously, avoiding the problem of the first belt loosening, which causes the other sliding blackboard to not move when one of the sliding blackboards is pulled at the beginning.

[0013] Preferably, any of the above schemes is that a positioning plate is fixedly connected to the middle of the inner wall of the rectangular frame, a plurality of U-shaped grooves are fixedly connected to the front side of the positioning plate, a positioning groove is provided at the top of the U-shaped groove, a plurality of support rods are fixedly connected to the back of the electronic whiteboard, a positioning block is fixedly connected to one end of the support rod away from the electronic whiteboard, the support rod is inserted into the inside of the positioning groove, and bevels are provided on both sides of the top of the positioning groove.

[0014] The beneficial effects are:

[0015] After the support rod is inserted into the inside of the positioning slot from the top, the positioning block is inserted into the U-shaped slot to support and fix the electronic whiteboard. This method facilitates the disassembly and assembly of the electronic whiteboard, thereby facilitating later disassembly and maintenance. The design of the groove expands the entrance of the positioning slot, thereby facilitating the corresponding insertion of the support rod and the positioning slot, further facilitating the installation of the electronic whiteboard.

[0016] Preferably, any of the above schemes is that the top of the rectangular frame is fixedly connected to the second positioning seat on one side away from the first positioning seat, and the second positioning seat is fixedly connected to the second positioning shaft on one side, the outer surface of the second positioning shaft rotates and is slidably connected to the second guide wheel, and one end of the second positioning shaft is fixedly connected to the second limit block, and the outer surface of the second guide wheel is sleeved on the second belt, the top of the first sliding blackboard is fixedly connected to the high base 2 away from the top of a first sliding column of the second sliding blackboard, and the top of the second sliding blackboard is fixedly connected to the low base 2 near the top of a second sliding column of the first sliding blackboard, the tops of the high base 2 and the low base 2 are both threadedly connected with positioning bolts, the outer surfaces of the positioning bolts are sleeved with plywood, and the sides of the high base 1 and the high base 2 are both provided with notches, and the two ends of the second belt are respectively fixed on the tops of the high base 2 and the low base 2.

[0017] The beneficial effects are:

[0018] When opening or closing the first sliding blackboard and the second sliding blackboard, both sliding blackboards can be opened or closed by operating any one of the sliding blackboards, thereby making it more convenient for operators to use.

[0019] Preferably, according to any of the above solutions, a plurality of racks are fixedly connected to the bottom of the splint.

[0020] The beneficial effects are:

[0021] When fixing the end of the belt, the rack can bite the end of the belt tightly, thereby avoiding the problem of the belt end sliding off and improving the stability of the structure.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 This is a structural diagram of Example 1 of the present utility model.

[0025] Figure 2 This is a schematic structural diagram of the rectangular frame in Example 1 of the present utility model.

[0026] Figure 3 This is a schematic structural diagram of the sliding blackboard and its partial enlargement in Example 1 of the present utility model.

[0027] Figure 4 This is a schematic structural diagram of a fixed blackboard according to the present invention.

[0028] Figure 5 This is a schematic diagram of the structure of the electronic whiteboard in the second embodiment of the present utility model.

[0029] Figure 6 This is a structural diagram of embodiment 3 of the present utility model.

[0030] Figure 7 This is a schematic structural diagram of the rectangular frame in the third embodiment of the present invention.

[0031] Figure 8 This is a structural diagram of the sliding blackboard in Example 3 of the present utility model.

[0032] Among them: 1. Rectangular frame, 11. Fixed plate, 12. Fixed hole, 13. Through hole, 14. Positioning plate, 15. U-shaped groove, 16. Positioning groove, 17. Bevel, 2. Fixed blackboard, 21. Threaded hole, 22. Chamfer, 3. First sliding blackboard, 31. First sliding column, 32. High base 1, 33. High base 2, 34. Notch, 4. Second sliding blackboard, 41. Second sliding column, 42. Low base 1, 43. Low base 2 , 341, positioning bolt, 342, splint, 343, rack, 5, electronic whiteboard, 51, support rod, 52, positioning block, 6, slide group, 61, slide, 62, guide groove, 7, first positioning seat, 71, first positioning shaft, 72, first guide wheel, 73, first limit block, 74, first belt, 8, second positioning seat, 81, second positioning shaft, 82, second guide wheel, 83, second limit block, 84, second belt. DETAILED DESCRIPTION

[0033] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0034] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0035] The utility model provides an all-in-one electronic whiteboard machine for a classroom.

[0036] Example 1:

[0037] like Figure 1-4As shown, it includes a rectangular frame 1, a fixing plate 11 is fixedly connected to the rear part of the inner wall of the rectangular frame 1, a plurality of fixing holes 12 are provided on the fixing plate 11, and expansion bolts can be used to penetrate the fixing holes 12 to fix the rectangular frame 1 to the wall, a fixed blackboard 2 is fixedly installed on both sides of the rectangular frame 1, a plurality of through holes 13 are provided on the top, bottom and both sides of the rectangular frame 1, threaded holes 21 are provided on the top, bottom and one side of the fixed blackboard 2, and bolts can be used to penetrate the through holes 13 and be threadedly connected to the threaded holes 21, so as to fix the fixed blackboard 2 in the rectangular frame 1, a first sliding blackboard 3 and a second sliding blackboard 4 are slidably connected in the rectangular frame 1, and an electronic whiteboard 5 is fixed in the middle of the rectangular frame 1, and the top and bottom of the rectangular frame 1 are provided with two sets of symmetrical sliding The groove group 6, each group of slide groove groups 6 includes two horizontally arranged slide grooves 61, and a guide groove 62 is provided at the end of the slide groove 61. The opposite side of the two fixed blackboards 2 is provided with a chamfer 22. When the sliding blackboard slides, the chamfer 22 can make the side of the fixed blackboard 2 avoid the side of the sliding blackboard, so that the fixed blackboard 2 will not press against the side of the sliding blackboard, causing the problem that the sliding blackboard cannot slide. The first sliding blackboard 3 is fixedly connected to both sides of the top and bottom of the first sliding blackboard 3 with a first sliding column 31. The two first sliding columns 31 at the top are respectively slidably connected to the two slide grooves 61 of the top group of slide groove groups 6, and the two first sliding columns 31 at the bottom are respectively slidably connected to the two slide grooves 61 of the bottom group of slide groove groups 6. The top of the first sliding blackboard 3 is close to the second sliding blackboard. The top of a first slide column 31 of 4 is fixedly connected to a high base 32, and the second sliding blackboard 4 is fixedly connected to the second slide column 41 on both sides of the top and bottom. The two second slide columns 41 at the top are respectively slidably connected to the two slide grooves 61 of a group of slide grooves 6 at the top, and the two second slide columns 41 at the bottom are respectively slidably connected to the two slide grooves 61 of a group of slide grooves 6 at the bottom. The top of the second sliding blackboard 4 is away from the first sliding blackboard 3. The top of a second slide column 41 is fixedly connected to a short base 42, and the tops of the high base 32 and the short base 42 are both threadedly connected with a positioning bolt 341. The outer surface of the positioning bolt 341 is sleeved with a splint 342. One side of the top of the rectangular frame 1 is fixedly connected to the first positioning seat 7. The first positioning seat 7 The first stop block 73 is fixedly connected to one end of the first positioning shaft 71 to prevent the first guide wheel 72 from falling off the surface of the first positioning shaft 71. The outer surface of the first guide wheel 72 is sleeved with a first belt 74. After the two ends of the first belt 74 are respectively placed on the top of the high base 32 and the short base 42, the positioning bolts 341 are tightened to make the clamping plate 342 press down and clamp the end of the first belt 74.Thus, the two ends of the first belt 74 are fixed to the top of the high base 32 and the low base 42 respectively.

[0038] Preferably, Figure 3 As shown, a plurality of racks 343 are fixedly connected to the bottom of the clamping plate 342. When the clamping plate 342 is pressed down to clamp the end of the first belt 74, the racks 343 can bite the first belt 74, thereby avoiding the problem of the end of the first belt 74 being loose.

[0039] The working principle of the present utility model is as follows: under normal circumstances, the sliding column on the sliding blackboard is located in the guide groove 62 of the slide groove group 6. At this time, the front sides of the sliding blackboard and the fixed blackboard 2 are flush. When the electronic whiteboard 5 is used, by sliding the first sliding blackboard 3 to the left, the first sliding blackboard 3 slides in the guide groove 62 through the first sliding column 31, so that the whole is translated toward the rear of the fixed blackboard 2. After the first sliding column 31 enters the slide groove 61, it slides to the left along the slide groove 61 to the rear of the fixed blackboard 2. During the sliding process of the first sliding blackboard 3, the second sliding blackboard 4 is pulled by the first belt 74 to slide toward the rear of the fixed blackboard 2, thereby achieving the purpose of synchronous sliding opening of the first sliding blackboard 3 and the second sliding blackboard 4.

[0040] When the electronic whiteboard 5 is not in use, the second sliding blackboard 4 is slid to the left, and the second sliding blackboard 4 pulls the first sliding blackboard 3 to slide through the first belt 74, thereby achieving the purpose of synchronous sliding closure of the first sliding blackboard 3 and the second sliding blackboard 4.

[0041] Example 2:

[0042] like Figure 2 and Figure 5 As shown, on the basis of Example 1, a positioning plate 14 is fixedly connected to the middle part of the inner wall of the rectangular frame 1, and a plurality of U-shaped grooves 15 are fixedly connected to the front side of the positioning plate 14. A positioning groove 16 is provided at the top of the U-shaped groove 15, and a plurality of support rods 51 are fixedly connected to the back of the electronic whiteboard 5. A positioning block 52 is fixedly connected to the end of the support rod 51 away from the electronic whiteboard 5, and the support rod 51 is inserted into the inside of the positioning groove 16. When installing the electronic whiteboard 5, lift the electronic whiteboard 5 so that the support rod 51 is slightly higher than the U-shaped groove 15, and then place the electronic whiteboard 5 into the interior of the rectangular frame 1 so that the back of the electronic whiteboard 5 fits the front side of the U-shaped groove 15, and then lower the electronic whiteboard 5, so that the support rod 51 can be inserted into the positioning groove 16, and the positioning block 52 is inserted into the U-shaped groove 15 to prevent the support rod 51 from detaching from the positioning groove 16, thereby achieving the purpose of installing the electronic whiteboard 5. This method is convenient for disassembling and assembling the electronic whiteboard 6.

[0043] Preferably, both sides of the top of the positioning groove 16 are provided with grooves 17 to expand the entrance of the positioning groove 16 , thereby facilitating the insertion of the support rod 51 into the positioning groove 16 .

[0044] Example 3:

[0045] like Figure 6-8 As shown, on the basis of embodiment one or embodiment two, a second positioning seat 8 is fixedly connected to one side of the top of the rectangular frame 1 away from the first positioning seat 7, a second positioning shaft 81 is fixedly connected to one side of the second positioning seat 8, the outer surface of the second positioning shaft 81 is rotatably and slidably connected to a second guide wheel 82, one end of the second positioning shaft 81 is fixedly connected to a second limit block 83, the outer surface of the second guide wheel 82 is sleeved with a second belt 84, the top of the first sliding blackboard 3 away from the second sliding blackboard 4 is fixedly connected to the top of a first sliding column 31 with a high base 2 33, the second sliding The top of the blackboard 4 is fixedly connected to the top of a second sliding column 41 near the first sliding blackboard 3, and the tops of the high base 2 33 and the low base 2 43 are both threadedly connected with positioning bolts 341, and the outer surface of the positioning bolt 341 is sleeved with a splint 342, and the sides of the high base 1 32 and the high base 2 33 are both provided with notches 34, and the second belt 84 can pass through the high base through the notches 34, and the two ends of the second belt 84 are respectively fixed to the tops of the high base 2 33 and the low base 2 43, which is the same as the fixing method of the first belt 74 in Example 1.

[0046] The working principle of the present utility model is as follows: when opening and closing the two sliding blackboards, slide the first sliding blackboard 3 to the left, and the first sliding blackboard 3 will pull the second sliding blackboard 4 to slide open synchronously through the first belt 74; slide the first sliding blackboard 3 to the right, and the first sliding blackboard 3 will pull the second sliding blackboard 4 to slide closed synchronously through the second belt 84; or slide the second sliding blackboard 4 to the right, and the second sliding blackboard 4 will pull the first sliding blackboard 3 to slide open synchronously through the second belt 84; slide the second sliding blackboard 4 to the left, and the second sliding blackboard 4 will pull the first sliding blackboard 3 to slide closed synchronously through the first belt 74. Therefore, when opening and closing the sliding blackboards, one of the sliding blackboards can be operated separately, and the operator does not need to switch back and forth to operate the sliding blackboards, which is more convenient to use.

Claims

1. A classroom electronic whiteboard all-in-one machine, comprising a rectangular frame (1), fixed blackboards (2) fixedly mounted on both sides of the rectangular frame (1), a first sliding blackboard (3) and a second sliding blackboard (4) slidably connected in the rectangular frame (1), and an electronic whiteboard (5) fixed in the middle of the rectangular frame (1), characterized in that: The top and bottom of the rectangular frame (1) are provided with two symmetrical groups of slide grooves (6), each group of the slide groove groups (6) includes two transversely arranged slide grooves (61), the ends of the slide grooves (61) are provided with guide grooves (62), and the opposite sides of the two fixed blackboards (2) are provided with chamfers (22), the top and bottom sides of the first sliding blackboard (3) are fixedly connected with first slide columns (31), the top of the first sliding blackboard (3) is close to the top of a first slide column (31) of the second sliding blackboard (4) is fixedly connected with a high base (32), the top and bottom sides of the second sliding blackboard (4) are fixedly connected with second slide columns (41), the top of the second sliding blackboard (4) is away from the top of a second slide column (41) of the first sliding blackboard (3) The top is fixedly connected with a short base (42), the tops of the high base (32) and the low base (42) are both threadedly connected with positioning bolts (341), the outer surface of the positioning bolts (341) is sleeved with a clamping plate (342), one side of the top of the rectangular frame (1) is fixedly connected with a first positioning seat (7), one side of the first positioning seat (7) is fixedly connected with a first positioning shaft (71), the outer surface of the first positioning shaft (71) is rotatably and slidably connected with a first guide wheel (72), one end of the first positioning shaft (71) is fixedly connected with a first limiting block (73), the outer surface of the first guide wheel (72) is sleeved with a first belt (74), and the two ends of the first belt (74) are respectively fixed on the tops of the high base (32) and the low base (42).

2. The classroom electronic whiteboard all-in-one according to claim 1, characterized in that: A fixing plate (11) is fixedly connected to the rear portion of the inner wall of the rectangular frame (1), and a plurality of fixing holes (12) are provided on the fixing plate (11).

3. The classroom electronic whiteboard all-in-one according to claim 1, characterized in that: The top, bottom and both sides of the rectangular frame (1) are provided with a plurality of through holes (13), and the top, bottom and one side of the fixed blackboard (2) are provided with threaded holes (21).

4. The classroom electronic whiteboard all-in-one according to claim 1, characterized in that: A positioning plate (14) is fixedly connected to the middle of the inner wall of the rectangular frame (1), a plurality of U-shaped grooves (15) are fixedly connected to the front side of the positioning plate (14), and a positioning groove (16) is provided at the top of the U-shaped groove (15).

5. The classroom electronic whiteboard all-in-one according to claim 4, characterized in that: A plurality of support rods (51) are fixedly connected to the back of the electronic whiteboard (5); a positioning block (52) is fixedly connected to one end of the support rod (51) away from the electronic whiteboard (5); and the support rod (51) is inserted into the interior of the positioning slot (16).

6. The classroom electronic whiteboard all-in-one according to claim 5, characterized in that: Both sides of the top of the positioning groove (16) are provided with grooves (17).

7. The classroom electronic whiteboard integrated device according to any one of claims 1 to 6, characterized in that: A second positioning seat (8) is fixedly connected to a side of the top of the rectangular frame (1) away from the first positioning seat (7); a second positioning shaft (81) is fixedly connected to one side of the second positioning seat (8); a second guide wheel (82) is rotatably and slidably connected to the outer surface of the second positioning shaft (81); a second limiting block (83) is fixedly connected to one end of the second positioning shaft (81); and a second belt (84) is sleeved on the outer surface of the second guide wheel (82).

8. The classroom electronic whiteboard integrated machine according to claim 7, characterized in that: The top of the first sliding blackboard (3) is fixedly connected to the top of a first sliding column (31) away from the second sliding blackboard (4) with a high base 2 (33), and the top of the second sliding blackboard (4) is fixedly connected to the top of a second sliding column (41) close to the first sliding blackboard (3). The tops of the high base 2 (33) and the short base 2 (43) are both threadedly connected with positioning bolts (341), and the outer surface of the positioning bolts (341) is sleeved with a splint (342), and the sides of the high base 1 (32) and the high base 2 (33) are both provided with notches (34), and the two ends of the second belt (84) are respectively fixed to the tops of the high base 2 (33) and the short base 2 (43).

9. The classroom electronic whiteboard integrated machine according to claim 1 or 8, characterized in that: A plurality of racks (343) are fixedly connected to the bottom of the clamping plate (342).

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