Mounting and adjusting frame for electronic blackboard

Abstract

The present invention belongs to the technical field of mounting brackets, and specifically provides an mounting and adjusting bracket for an electronic blackboard, comprising a support column, a sliding column, a scissor rod, a connecting rod, and an adjustment slot. When the device is in use, the user rotates the third adjusting worm by turning the third adjusting knob, and drives the third adjusting worm gear to rotate. The third adjusting worm gear then drives the second adjusting bevel gear and the lifting gear to rotate simultaneously. The adjusting rack moves with the rotation of the lifting gear, thereby causing the sliding column to slide relative to the support column. At the same time, the second adjusting bevel gear drives the upper synchronous bevel gear to rotate, causing the synchronous rod to drive the lower synchronous bevel gear to rotate, and the lower synchronous bevel gear drives the third adjusting bevel gear to rotate, thereby causing the bottom transverse rod to rotate. The bottom plate adjusting bevel gear rotates under the limitation of the fourth adjusting bevel gear, thereby causing the support bottom plate to rotate and open. At this time, the user places the support bottom plate on the ground to complete the deployment operation of the device, which is convenient and quick to use.

Description

Technical Field

[0001] The invention belongs to the technical field of mounting brackets, and specifically provides a mounting and adjusting bracket for an electronic blackboard. Background Art

[0002] The electronic blackboard is a teaching device that integrates LCD touch screen, computer and projector functions. It supports handwriting, multimedia playback and remote interaction. It can replace the traditional blackboard to realize digital teaching and is widely used in classrooms, conference rooms and training venues.

[0003] Existing electronic blackboards are usually installed in fixed positions in classrooms or conference rooms. After fixed installation, the angle and height of the electronic blackboard cannot be adjusted according to the user's height or seating layout. In addition, existing electronic blackboards are mostly used in combination with traditional blackboards, which causes the electronic blackboards to occupy wall space for a long time, resulting in a reduction in the available area of ​​traditional blackboards. To solve this problem, electronic blackboards are often installed on mobile brackets to increase the flexibility of the electronic blackboards. However, the existing electronic blackboard mounting frame is a fixed structure that can only meet the movement of the electronic blackboard and still cannot flexibly adjust the angle and height of the electronic blackboard. At the same time, due to the different sizes of electronic blackboards, the same mounting frame cannot adapt to electronic blackboards of different sizes, and the existing mounting frame occupies a large space and is inconvenient to carry.

[0004] Therefore, it is necessary to propose a mounting and adjusting frame for an electronic blackboard to solve the technical problems existing in the use of the existing electronic blackboard. Summary of the Invention

[0005] In order to solve the above-mentioned existing problems, the present invention provides an installation and adjustment frame for an electronic blackboard. When the device is not in use, it can be folded, which is convenient for users to carry and transport. When in use, the user turns the third adjusting knob to rotate the third adjusting worm and drive the third adjusting worm gear to rotate. The third adjusting worm gear drives the second adjusting bevel gear and the lifting gear to rotate at the same time. The adjustment rack moves with the rotation of the lifting gear, thereby causing the sliding column to slide relative to the support column. At the same time, the second adjusting bevel gear drives the upper synchronous bevel gear to rotate, so that the synchronous rod drives the lower synchronous bevel gear to rotate, and the lower synchronous bevel gear drives the third adjusting bevel gear to rotate, thereby causing the bottom transverse rod to rotate, and the bottom plate adjusting bevel gear rotates under the limitation of the fourth adjusting bevel gear, thereby causing the support bottom plate to rotate and open. At this time, the user places the support bottom plate on the ground to complete the deployment operation of the device, which is convenient and quick to use.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] The present invention provides an installation and adjustment frame for an electronic blackboard, comprising a support column, a sliding column is provided on the rear side of the support column for engagement and sliding, a support groove is provided on the front side of the support column, a sliding block is provided for sliding up and down in the support groove, an adjustment rod is provided for rotating at the front end of the sliding block, a rotating ring is provided for rotating symmetrically front and back on the side wall of the adjustment rod, a scissor rod is fixed on the side wall of the rotating ring, the scissor rods are cross-arranged, a first adjusting bevel gear is coaxially fixed on the side close to each other, the first adjusting bevel gear is respectively sleeved on the adjustment rod, and the adjustment The side wall of the rod is rotatably provided with a connecting bevel gear, and the connecting bevel gear is rotatably provided between the symmetrical first adjusting bevel gears, and the connecting bevel gears are respectively engaged with the first adjusting bevel gears. A connecting block is fixedly provided at the upper end of the front side wall of the scissor rod, and a connecting rod is provided on the front side of the end of the scissor rod. The lower end of the connecting rod is rotatably connected to the lower end of the scissor rod, and a connecting groove is provided on the rear side wall of the connecting rod. The connecting block is engaged and slidably provided in the connecting groove. The front side wall of the connecting rod is fixed with an adjustment groove, and a blackboard fixing clip is symmetrically slid up and down on the side where the adjustment grooves are close to each other.

[0008] The cam is fixedly provided with a locking rail, and the rear side wall of the support column is coaxially fixed with the locking rail, and the locking rail is fixedly provided in the locking rail. The upper end of the side wall of the locking rail is rotatably provided with a lifting gear, and the inner wall of the locking groove is fixedly provided with an adjusting rack, and the lifting gear is meshed with the adjusting rack. The upper end of the inner side wall of the sliding column is rotatably provided with a second adjusting bevel gear, and the second adjusting bevel gear is coaxially fixedly connected with the lifting gear. The inner side wall of the sliding column is rotatably provided with a synchronization rod, and the upper and lower ends of the synchronization rod are coaxially fixed with an upper synchronization bevel gear and a lower synchronization bevel gear, and the upper synchronization bevel gear is meshed with the second adjusting bevel gear.

[0009] Furthermore, a bottom transverse rotating rod is rotatably provided on the left and right side walls of the lower end of the sliding column, and a third adjusting bevel gear is coaxially fixed on the side walls of the bottom transverse rotating rod, and the third adjusting bevel gear is rotatably arranged inside the sliding column, and the third adjusting bevel gear is meshed with the lower synchronous bevel gear. The fourth adjusting bevel gear is symmetrically fixed on the lower ends of the left and right side walls of the sliding column, and the fourth adjusting bevel gear is coaxially sleeved on the bottom transverse rotating rod respectively. The left and right ends of the bottom transverse rotating rod are symmetrically fixed with connecting pieces, and the lower end of the connecting piece is rotatably provided with a bottom plate adjusting bevel gear, and the bottom plate adjusting bevel gears are respectively meshed with the fourth adjusting bevel gears, and the lower end of the connecting piece is rotatably provided with a support bottom plate, and the end of the support bottom plate is fixedly provided on the lower end surface of the bottom plate adjusting bevel gear.

[0010] Furthermore, a rotating shaft is fixedly provided at the end of the adjusting rod near the sliding block, and the rotating shaft is rotatably provided at the front end of the sliding block. A first adjusting worm is rotatably provided on the side wall of the adjusting rod near the end of the sliding block, and a first adjusting worm wheel is coaxially fixed on the end face of the rotating circle near the sliding block side. The first adjusting worm wheel is sleeved on the adjusting rod, and the first adjusting worm is meshed with the first adjusting worm wheel. A first adjusting knob is coaxially fixed on the end of the first adjusting worm.

[0011] Furthermore, a second adjusting worm wheel is coaxially fixed on the end face of the rotating shaft, a second adjusting worm is rotatably provided on the side wall of the sliding block, the second adjusting worm is engaged with the second adjusting worm wheel, and a second adjusting knob is coaxially fixed on the end of the second adjusting worm.

[0012] Furthermore, a third adjusting worm wheel is coaxially fixed on the end face of the second adjusting bevel gear, a third adjusting worm is rotatably provided above the third adjusting worm wheel, the end of the third adjusting worm is rotatably provided on the inner wall of the sliding column, and a third adjusting knob is coaxially fixed on the end of the third adjusting worm, and the third adjusting knob is rotatably provided on the outer wall of the sliding column.

[0013] Furthermore, a lifting threaded rod is rotatably provided in the support groove, the sliding block is sleeved on the lifting threaded rod, the sliding block is threadedly connected to the lifting threaded rod, and a lifting adjustment knob is coaxially fixed to the lower end of the lifting threaded rod, and the lifting adjustment knob is rotatably provided on the lower wall of the support column.

[0014] Furthermore, a supporting double-threaded rod is rotatably provided in the adjustment groove, and support blocks are provided on the upper and lower symmetrical sliding sleeves at both ends of the supporting double-threaded rod. The support blocks are respectively threadedly connected to the side walls of the supporting double-threaded rod with opposite thread rotation directions. The blackboard fixing clips are fixed on the side walls of the support blocks, and the side walls where the blackboard fixing clips are close to each other are provided with card slots. An electronic blackboard is clamped between the blackboard fixing clips, and the four corners of the electronic blackboard are respectively clamped in the card slots.

[0015] Furthermore, a support adjustment knob is coaxially fixed to the lower end of the supporting double-threaded rod, and the support adjustment knob is rotatably arranged on the lower wall of the adjustment slot.

[0016] Furthermore, a moving handle is fixedly provided on the rear wall of the sliding column.

[0017] The beneficial effects achieved by the present invention using the above structure are:

[0018] (1) This device can be folded when not in use, making it convenient for users to carry and transport. When in use, the user turns the third adjusting knob to rotate the third adjusting worm and drive the third adjusting worm wheel to rotate. The third adjusting worm wheel drives the second adjusting bevel gear and the lifting gear to rotate at the same time. The adjusting rack moves with the rotation of the lifting gear, thereby causing the sliding column to slide relative to the support column. At the same time, the second adjusting bevel gear drives the upper synchronous bevel gear to rotate, causing the synchronous rod to drive the lower synchronous bevel gear to rotate, and the lower synchronous bevel gear drives the third adjusting bevel gear to rotate, thereby causing the bottom transverse rod to rotate. The bottom plate adjusting bevel gear rotates under the limitation of the fourth adjusting bevel gear, thereby causing the supporting bottom plate to rotate and open. At this time, the user places the supporting bottom plate on the ground to complete the unfolding operation of this device. It is convenient and quick to use.

[0019] (2) The user turns the first adjusting knob to make the first adjusting worm drive the first adjusting worm wheel to rotate, and the first adjusting worm wheel drives the rotating ring and the first adjusting bevel gear to rotate, thereby rotating the scissor rod. The first adjusting bevel gear drives another first adjusting bevel gear to rotate through the connecting bevel gear, thereby making the other rotating ring and the scissor rod rotate in opposite directions, and the cross-set scissor rods unfold. At the same time, the connecting block slides in the connecting groove, and the distance between the two opposite connecting rods increases. The user can flexibly adjust the distance between the connecting rods according to the required fixed width size of the electronic blackboard to adapt to electronic blackboards of various width sizes, and the applicability is strong;

[0020] (3) When fixing the electronic blackboard, the user turns the support adjustment knob to rotate the supporting double-threaded rod. The support blocks symmetrically arranged above and below move closer to or farther away from each other as the supporting double-threaded rod rotates, thereby adjusting the distance between the blackboard fixing clips. The user flexibly adjusts the distance between the blackboard fixing clips according to the height size of the electronic blackboard to be fixed, so that the four corners of the electronic blackboard can be smoothly inserted into the four card slots, thereby completing the fixing of the electronic blackboard. The operation is simple and convenient.

[0021] (4) The user can rotate the lifting adjustment knob to rotate the lifting threaded rod, and the sliding block slides up and down with the rotation of the lifting threaded rod, thereby changing the height position of the electronic blackboard. The user can adjust the height of the electronic blackboard according to actual use needs to adapt to different height usage requirements;

[0022] (5) The user can rotate the second adjusting knob to rotate the second adjusting worm, which in turn drives the second adjusting worm wheel to rotate, and the second adjusting worm wheel drives the rotating shaft to rotate, thereby causing the adjusting rod to pitch and rotate, thereby changing the pitch angle of the electronic blackboard. The pitch angle of the electronic blackboard can be flexibly adjusted according to actual use needs, and has strong applicability;

[0023] (6) The first adjusting worm and the first adjusting worm wheel, the second adjusting worm and the second adjusting worm wheel, and the third adjusting worm and the third adjusting worm wheel respectively constitute a worm gear structure. The worm gear structure has a self-locking characteristic, thereby ensuring that the overall structure of the device can remain stable when performing the unfolding operation, the fixing operation of the electronic blackboard, and the pitch angle adjustment operation of the electronic blackboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of an installation and adjustment frame for an electronic blackboard provided by the present invention in an unfolded state without the electronic blackboard installed;

[0025] Figure 2 A structural diagram of an electronic blackboard installation and adjustment frame provided by the present invention when the electronic blackboard is installed in an unfolded state;

[0026] Figure 3 A schematic structural diagram of a mounting and adjusting frame for an electronic blackboard provided by the present invention in a folded state;

[0027] Figure 4 Schematic diagram of the connection structure of the adjusting rod, the rotating ring, the first adjusting bevel gear, the connecting bevel gear, the scissor lever, the first adjusting worm gear and the first adjusting worm;

[0028] Figure 5 Schematic diagram of the connection structure of the lifting threaded rod, the sliding block, the rotating shaft, the adjusting rod, the rotating ring, the first adjusting bevel gear, the connecting bevel gear and the scissor lever;

[0029] Figure 6 Schematic diagram of the connection structure between the support column and the sliding column;

[0030] Figure 7 Schematic diagram of the connection structure of the scissor rod, connecting block, connecting rod, connecting groove, adjusting groove and blackboard fixing clamp;

[0031] Figure 8 Schematic diagram of the connection structure of the supporting double-threaded rod, supporting block, blackboard fixing clamp, card slot and electronic blackboard;

[0032] Figure 9 Schematic diagram of the connection structure between the lifting gear and the adjustment rack;

[0033] Figure 10 Schematic diagram of the internal structure of the sliding column;

[0034] Figure 11 for Figure 10 A magnified schematic diagram of part A;

[0035] Figure 12It is a schematic diagram of the connection structure of the lifting gear, the second adjusting bevel gear, the third adjusting worm gear, the third adjusting worm, the upper synchronous bevel gear and the synchronous rod.

[0036] Among them, 1. Support column, 2. Support groove, 3. Lifting threaded rod, 4. Lifting adjustment knob, 5. Engaging groove, 6. Adjustment rack, 7. Sliding block, 8. Adjusting rod, 9. Rotating shaft, 10. Second adjusting worm gear, 11. Connecting bevel gear, 12. Rotating circle, 13. First adjusting bevel gear, 14. First adjusting worm gear, 15. First adjusting worm, 16. First adjusting knob, 17. Second adjusting worm, 18. Second adjusting knob, 19. Sliding column, 20. Sliding groove, 21. Engaging rail, 22. Lifting gear, 23. Synchronizing rod, 24. Upper synchronous bevel gear, 25 , lower synchronous bevel gear, 26, second adjusting bevel gear, 27, third adjusting worm gear, 28, third adjusting worm, 29, third adjusting knob, 30, bottom transverse rod, 31, third adjusting bevel gear, 32, fourth adjusting bevel gear, 33, connecting piece, 34, supporting base plate, 35, base plate adjusting bevel gear, 36, moving handle, 37, scissors rod, 38, connecting block, 39, connecting rod, 40, connecting groove, 41, adjusting groove, 42, supporting double threaded rod, 43, supporting adjusting knob, 44, blackboard fixing clamp, 45, supporting block, 46, slot, 47, electronic blackboard. DETAILED DESCRIPTION

[0037] The technical solution of the present invention is further described in detail below with reference to specific embodiments. The technical features or connection relationships of the present invention that are not described in detail are all based on existing technologies.

[0038] The present invention will be further described in detail below with reference to the accompanying drawings.

[0039] like Figures 1-12 As shown, the present invention provides an installation and adjustment frame for an electronic blackboard, comprising a support column 1, a sliding column 19 is provided on the rear side of the support column 1 for sliding engagement, a support groove 2 is provided on the front side of the support column 1, a sliding block 7 is provided in the support groove 2 for sliding up and down, a lifting threaded rod 3 is provided for rotation in the support groove 2, the sliding block 7 is sleeved on the lifting threaded rod 3, the sliding block 7 is threadedly connected to the lifting threaded rod 3, a lifting adjustment knob 4 is coaxially fixed on the lower end of the lifting threaded rod 3, the lifting adjustment knob 4 is rotatably provided on the lower wall of the support column 1, and a movable handle 36 is fixed on the rear wall of the sliding column 19.

[0040] A sliding groove 20 is provided on the front side wall of the sliding column 19, and the rear side wall of the supporting column 1 is engaged and slidably arranged in the sliding groove 20. A locking rail 21 is fixed in the sliding groove 20, and a locking groove 5 is provided on the rear side wall of the supporting column 1. The locking rail 21 is slidingly arranged in the locking groove 5. The upper end of the side wall of the locking rail 21 is rotatably provided with a lifting gear 22, and the inner wall of the locking groove 5 is fixedly provided with an adjusting rack 6. The lifting gear 22 is meshed with the adjusting rack 6. The upper end of the inner side wall of the sliding column 19 is rotatably provided with a second adjusting bevel gear 26, and the second adjusting bevel gear 26 is coaxially fixedly connected with the lifting gear 22. A synchronous rod 23 is rotatably provided on the inner side wall of the sliding column 19, and an upper synchronous bevel gear 24 and a lower synchronous bevel gear 25 are coaxially fixed at the upper and lower ends of the synchronous rod 23. The upper synchronous bevel gear 24 is meshed with the second adjusting bevel gear 26;

[0041] A third adjusting worm gear 27 is coaxially fixed to the end surface of the second adjusting bevel gear 26. A third adjusting worm 28 is rotatably provided above the third adjusting worm gear 27. The end of the third adjusting worm 28 is rotatably provided on the inner wall of the sliding column 19. A third adjusting knob 29 is coaxially fixed to the end of the third adjusting worm 28. The third adjusting knob 29 is rotatably provided on the outer wall of the sliding column 19.

[0042] The left and right side walls of the lower end of the sliding column 19 are rotatably provided with a bottom transverse rod 30, and the side walls of the bottom transverse rod 30 are coaxially fixed with a third adjusting bevel gear 31, the third adjusting bevel gear 31 is rotatably provided inside the sliding column 19, and the third adjusting bevel gear 31 is meshed with the lower synchronous bevel gear 25. The lower ends of the left and right side walls of the sliding column 19 are symmetrically fixed with fourth adjusting bevel gears 32, and the fourth adjusting bevel gears 32 are coaxially sleeved on the bottom transverse rod 30 respectively. The left and right ends of the bottom transverse rod 30 are symmetrically fixed with connecting pieces 33, and the lower end of the connecting piece 33 is rotatably provided with a bottom plate adjusting bevel gear 35, which meshes with the fourth adjusting bevel gear 32 respectively. The lower end of the connecting piece 33 is rotatably provided with a support bottom plate 34, and the end of the support bottom plate 34 is fixed to the lower end surface of the bottom plate adjusting bevel gear 35.

[0043] The front end of the sliding block 7 is rotatably provided with an adjusting rod 8, and the side wall of the adjusting rod 8 is symmetrically rotated and sleeved with a rotating ring 12. The side wall of the rotating ring 12 is fixed with a scissor rod 37, and the scissor rods 37 are cross-arranged. The side of the rotating ring 12 close to each other is coaxially fixed with a first adjusting bevel gear 13, and the first adjusting bevel gear 13 is respectively sleeved on the adjusting rod 8, and the side wall of the adjusting rod 8 is rotatably provided with a connecting bevel gear 11. The connecting bevel gear 11 is rotatably arranged between the symmetrical first adjusting bevel gears 13, and the connecting bevel gears 11 are respectively meshed with the first adjusting bevel gear 13. The upper end of the front side wall of the scissor rod 37 is fixed with a connecting block 38, and the front side of the end of the scissor rod 37 is provided with a connecting rod 39. The lower end of the connecting rod 39 is rotatably connected to the lower end of the scissor rod 37, and the rear side wall of the connecting rod 39 is provided with a connecting groove 40, and the connecting block 38 is engaged and slidably arranged in the connecting groove 40.

[0044] A rotating shaft 9 is fixed to the end of the adjusting rod 8 near the sliding block 7, and the rotating shaft 9 is rotatably arranged at the front end of the sliding block 7. A first adjusting worm 15 is rotatably provided on the side wall of the adjusting rod 8 near the end of the sliding block 7. A first adjusting worm gear 14 is coaxially fixed to the end face of the rotating circle 12 near the side of the sliding block 7. The first adjusting worm gear 14 is sleeved on the adjusting rod 8, and the first adjusting worm 15 is meshed with the first adjusting worm gear 14. The end face of the first adjusting worm 15 is coaxially fixed with a first adjusting knob 16; a second adjusting worm gear 10 is coaxially fixed to the end face of the rotating shaft 9, and a second adjusting worm 17 is rotatably provided on the side wall of the sliding block 7. The second adjusting worm 17 is meshed with the second adjusting worm gear 10, and the end face of the second adjusting worm 17 is coaxially fixed with a second adjusting knob 18.

[0045] An adjustment slot 41 is fixedly provided on the front side wall of the connecting rod 39, and a blackboard fixing clip 44 is symmetrically slidably provided on the side of the adjustment slot 41 that is close to each other. A supporting double-threaded rod 42 is rotatably provided in the adjustment slot 41, and support blocks 45 are symmetrically slidably provided on both ends of the supporting double-threaded rod 42. The support blocks 45 are respectively threadedly connected to the side walls of the supporting double-threaded rod 42 with opposite thread rotation directions. The blackboard fixing clip 44 is fixed on the side wall of the support block 45, and a slot 46 is provided on the side wall of the blackboard fixing clip 44 that is close to each other. An electronic blackboard 47 is engaged between the blackboard fixing clips 44, and the four corners of the electronic blackboard 47 are respectively engaged in the slot 46; a supporting adjustment knob 43 is coaxially fixed on the lower end of the supporting double-threaded rod 42, and the supporting adjustment knob 43 is rotatably provided on the lower wall of the adjustment slot 41.

[0046] Working principle and workflow:

[0047] The device can be folded when not in use. Figure 3As shown, the user moves and carries the device by holding the moving handle 36. When in use, the user first turns the third adjusting knob 29 to rotate the third adjusting worm 28, and the third adjusting worm 28 drives the third adjusting worm wheel 27 to rotate. The third adjusting worm wheel 27 drives the second adjusting bevel gear 26 and the lifting gear 22 to rotate at the same time. The adjusting rack 6 moves with the rotation of the lifting gear 22, thereby causing the sliding column 19 to slide relative to the support column 1. At this time, the overall length of the device increases. At the same time, the second adjusting bevel gear 26 drives the upper synchronous bevel gear 24 to rotate, so that the synchronous rod 23 drives the lower synchronous bevel gear 25 to rotate, and the lower synchronous bevel gear 25 drives the third adjusting bevel gear 31 to rotate, thereby rotating the bottom transverse rod 30, and the supporting base plate 34 rotates accordingly. When the base plate adjusting bevel gear 35 rotates together with the bottom transverse rod 30, it will rotate under the limitation of the fourth adjusting bevel gear 32, thereby causing the supporting base plate 34 to rotate with the base plate adjusting bevel gear 35 as the center of the circle. The angle between the two supporting base plates 34 becomes larger, thereby forming a stable supporting structure. At this time, the user places the supporting base plate 34 on the ground to complete the deployment operation of the device. Figure 1 shown.

[0048] After the device is unfolded, the user turns the first adjusting knob 16 to make the first adjusting worm 15 drive the first adjusting worm gear 14 to rotate, and the first adjusting worm gear 14 drives the rotating circle 12 and the first adjusting bevel gear 13 to rotate, thereby rotating the scissor rod 37, and the first adjusting bevel gear 13 drives the other first adjusting bevel gear 13 to rotate in the opposite direction through the connecting bevel gear 11, thereby making the other rotating circle 12 and the scissor rod 37 rotate in the opposite direction, and the cross-arranged scissor rods 37 unfold. At the same time, the connecting block 38 slides in the connecting groove 40, and the distance between the two opposite connecting rods 39 increases. The user flexibly adjusts the distance between the connecting rods 39 according to the required fixed width size of the electronic blackboard 47 to adapt to electronic blackboards 47 of various width sizes;

[0049] When fixing the electronic blackboard 47, the user turns the support adjustment knob 43 to rotate the supporting double-threaded rod 42, and the support blocks 45 symmetrically arranged above and below move closer to or away from each other as the supporting double-threaded rod 42 rotates, thereby adjusting the distance between the blackboard fixing clips 44. The user flexibly adjusts the distance between the blackboard fixing clips 44 according to the height size of the electronic blackboard 47 to be fixed, so that the four corners of the electronic blackboard 47 can be smoothly inserted into the four card slots 46, thereby completing the fixation of the electronic blackboard 47. The operation is simple and convenient.

[0050] After the electronic blackboard 47 is installed, the user can rotate the lifting adjustment knob 4 to rotate the lifting threaded rod 3. The sliding block 7 slides up and down with the rotation of the lifting threaded rod 3, thereby changing the height position of the electronic blackboard 47. The user can adjust the height of the electronic blackboard 47 according to actual usage requirements to adapt to different height usage requirements;

[0051] The user can rotate the second adjusting knob 18 to rotate the second adjusting worm 17, and the second adjusting worm 17 drives the second adjusting worm wheel 10 to rotate, and the second adjusting worm wheel 10 drives the rotating shaft 9 to rotate, thereby causing the adjusting rod 8 to pitch and rotate, and then changing the pitch angle of the electronic blackboard 47. The pitch angle of the electronic blackboard 47 can be flexibly adjusted according to actual usage requirements, providing users with a more suitable display angle, and has strong applicability.

[0052] The first adjusting worm 15 and the first adjusting worm wheel 14, the second adjusting worm 17 and the second adjusting worm wheel 10, and the third adjusting worm 28 and the third adjusting worm wheel 27 respectively constitute a worm gear structure. The worm gear structure has a self-locking characteristic, thereby ensuring that the overall structure of the device can remain stable when performing the unfolding operation, the fixing operation of the electronic blackboard 47, and the pitch angle adjustment operation of the electronic blackboard 47.

[0053] The above is the overall workflow of the present invention. Just repeat this step next time you use it.

[0054] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A mounting and adjusting frame for an electronic blackboard, comprising a support column (1), characterized in that: The rear side of the support column (1) is engaged and slidably provided with a sliding column (19), the front side of the support column (1) is provided with a support groove (2), and a sliding block (7) is provided in the support groove (2) for sliding up and down. The front end of the sliding block (7) is rotatably provided with an adjusting rod (8), and the side wall of the adjusting rod (8) is symmetrically rotated and sleeved with a rotating ring (12). The side wall of the rotating ring (12) is fixed with a scissor rod (37), and the scissor rods (37) are arranged crosswise with each other. The side of the rotating ring (12) close to each other is coaxially fixed with a first adjusting bevel gear (13), and the first adjusting bevel gear (13) is respectively sleeved on the adjusting rod (8). The side wall of the adjusting rod (8) is rotatably provided with a connecting bevel gear (11), and the connecting bevel gear (11) is rotatably arranged between the symmetrical first adjusting bevel gears (13). The connecting bevel gear (11) is divided into The scissor rod (37) is meshed with the first adjusting bevel gear (13), and a connecting block (38) is fixedly provided on the upper end of the front side wall of the scissor rod (37). A connecting rod (39) is provided on the front side of the end of the scissor rod (37). The lower end of the connecting rod (39) is rotatably connected to the lower end of the scissor rod (37). A connecting groove (40) is provided on the rear side wall of the connecting rod (39). The connecting block (38) is engaged and slidably arranged in the connecting groove (40). An adjusting groove (41) is fixedly provided on the front side wall of the connecting rod (39). A blackboard fixing clamp (44) is symmetrically slidably provided on the side where the adjusting groove (41) is close to each other. A clamping groove (46) is provided on the side wall where the blackboard fixing clamp (44) is close to each other. An electronic blackboard (47) is engaged between the blackboard fixing clamps (44), and the four corners of the electronic blackboard (47) are respectively engaged and arranged in the clamping groove (46). The front side wall of the sliding column (19) is provided with a sliding groove (20), the rear side wall of the support column (1) is engaged and slidably arranged in the sliding groove (20), a locking rail (21) is fixedly provided in the sliding groove (20), the rear side wall of the support column (1) is provided with a locking groove (5), the locking rail (21) is slidably arranged in the locking groove (5), a lifting gear (22) is rotatably provided on the upper end of the side wall of the locking rail (21), an adjusting rack (6) is fixedly provided on the inner wall of the locking groove (5), and the lifting gear (22) is fixedly provided on the inner wall of the locking groove (5). (22) is meshed with the adjustment rack (6), the upper end of the inner side wall of the sliding column (19) is rotatably provided with a second adjustment bevel gear (26), the second adjustment bevel gear (26) is coaxially fixedly connected to the lifting gear (22), the inner side wall of the sliding column (19) is rotatably provided with a synchronization rod (23), the upper and lower ends of the synchronization rod (23) are coaxially fixedly provided with an upper synchronization bevel gear (24) and a lower synchronization bevel gear (25), the upper synchronization bevel gear (24) is meshed with the second adjustment bevel gear (26); The left and right side walls of the lower end of the sliding column (19) are rotatably provided with a bottom transverse rod (30), and the side wall of the bottom transverse rod (30) is coaxially fixed with a third adjusting bevel gear (31). The third adjusting bevel gear (31) is rotatably provided inside the sliding column (19), and the third adjusting bevel gear (31) is meshed with the lower synchronous bevel gear (25). The lower ends of the left and right side walls of the sliding column (19) are symmetrically fixed with fourth adjusting bevel gears (32). The fourth adjusting bevel gear (32) ) are respectively coaxially sleeved on the bottom transverse rotating rod (30), and the left and right ends of the bottom transverse rotating rod (30) are symmetrically fixed with connecting pieces (33), and the lower end of the connecting piece (33) is rotatably provided with a bottom plate adjusting bevel gear (35), and the bottom plate adjusting bevel gear (35) is respectively engaged with the fourth adjusting bevel gear (32), and the lower end of the connecting piece (33) is rotatably provided with a supporting bottom plate (34), and the end of the supporting bottom plate (34) is fixedly provided on the lower end surface of the bottom plate adjusting bevel gear (35).

2. The mounting and adjusting frame for an electronic blackboard according to claim 1, characterized in that: The end of the adjusting rod (8) close to the sliding block (7) is fixed with a rotating shaft (9), and the rotating shaft (9) is rotatably arranged at the front end of the sliding block (7). The side wall of the adjusting rod (8) close to the end of the sliding block (7) is rotatably provided with a first adjusting worm (15), and the end surface of the rotating ring (12) close to the side of the sliding block (7) is coaxially fixed with a first adjusting worm wheel (14), the first adjusting worm wheel (14) is sleeved on the adjusting rod (8), the first adjusting worm wheel (15) is meshed with the first adjusting worm wheel (14), and the end of the first adjusting worm wheel (15) is coaxially fixed with a first adjusting knob (16).

3. The mounting and adjusting frame for an electronic blackboard according to claim 2, characterized in that: A second adjusting worm wheel (10) is coaxially fixed to the end face of the rotating shaft (9), a second adjusting worm (17) is rotatably provided on the side wall of the sliding block (7), the second adjusting worm (17) is meshed with the second adjusting worm wheel (10), and a second adjusting knob (18) is coaxially fixed to the end of the second adjusting worm (17).

4. The mounting and adjusting frame for an electronic blackboard according to claim 3, characterized in that: A third adjusting worm wheel (27) is coaxially fixed to the end face of the second adjusting bevel gear (26), a third adjusting worm (28) is rotatably provided above the third adjusting worm wheel (27), the end of the third adjusting worm (28) is rotatably provided on the inner wall of the sliding column (19), and a third adjusting knob (29) is coaxially fixed to the end of the third adjusting worm (28), and the third adjusting knob (29) is rotatably provided on the outer wall of the sliding column (19).

5. The mounting and adjusting frame for an electronic blackboard according to claim 4, characterized in that: A lifting threaded rod (3) is rotatably provided in the support groove (2), the sliding block (7) is sleeved on the lifting threaded rod (3), the sliding block (7) is threadedly connected to the lifting threaded rod (3), and a lifting adjustment knob (4) is coaxially fixed to the lower end of the lifting threaded rod (3), and the lifting adjustment knob (4) is rotatably provided on the lower wall of the support column (1).

6. The mounting and adjusting frame for an electronic blackboard according to claim 5, characterized in that: A supporting double-threaded rod (42) is rotatably provided in the adjustment groove (41), and support blocks (45) are provided on the upper and lower symmetrical sliding sleeves at both ends of the supporting double-threaded rod (42). The support blocks (45) are respectively threadedly connected to the side walls of the supporting double-threaded rod (42) at both ends with opposite thread rotation directions, and the blackboard fixing clamp (44) is fixedly provided on the side walls of the support blocks (45).

7. The mounting and adjusting frame for an electronic blackboard according to claim 6, characterized in that: A support adjustment knob (43) is coaxially fixed to the lower end of the supporting double-threaded rod (42), and the support adjustment knob (43) is rotatably arranged on the lower wall of the adjustment slot (41).

8. The mounting and adjusting frame for an electronic blackboard according to claim 7, characterized in that: A moving handle (36) is fixedly provided on the rear wall of the sliding column (19).

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