An adjustable display device for English education
Through the coordination of threaded rods, threaded blocks, T-shaped rods and square frames, the problem of difficult adjustment of the angle and area of the display device is solved, and the flexibility and convenience of the display device are achieved, which is suitable for English education.
Patent Information
- Application Number
- CN202211113790.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-14
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2042-09-14
AI Technical Summary
The angle and display area of existing display devices for English education are difficult to adjust, and they are inconvenient to use and have poor flexibility.
The angle of the display board assembly can be adjusted by cooperating with the threaded rod, threaded block, T-shaped rod and square frame; the display area can be increased by cooperating with the writing display board and the card block slot; the base assembly is designed for easy movement and fixation.
The flexible adjustment of the angle and area of the display device is achieved, the convenience of use and the display efficiency are improved, and the replacement of the display board and the movement and fixation of the device are facilitated.
Smart Images
Figure CN115472068B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a display device, in particular to an adjustable display device for English education. Background Art
[0002] In the process of English education and other training, teachers usually need to use display devices to show students teaching content, pictures and other teaching information. Display devices are mostly display stands. However, display stands are generally fixed, which is not only inconvenient to move, but also difficult to adjust the display angle, making the display device very inconvenient during use.
[0003] There are still some defects and deficiencies in the current display device when it is in use. The specific areas that need improvement are as follows:
[0004] 1. The display brackets of existing display devices are generally fixed during use, making it difficult to adjust the display angle, which is very inconvenient to use;
[0005] 2. The display area of existing display devices is mostly fixed during use, and the display area cannot be expanded, which makes the device less flexible during use. Summary of the Invention
[0006] The purpose of the present invention is to provide an adjustable display device for English education, so as to solve the problem in the prior art that the display brackets of the existing display devices are generally fixed during use, making it difficult to adjust the display angle and being very inconvenient to use.
[0007] The cam is fixedly mounted on a support frame, and the cam is secured on both sides with respect to the bottom of the support frame, and the cam is connected to the support frame by a screw thread on the support frame.
[0008] As a preferred technical solution of the present invention, the front and rear polished rod parts of the threaded rod are movably connected to a support seat, the front end of the threaded rod is fixedly connected to a rotating handle, the two support seats are respectively fixedly connected to the front and rear sides of the upper surface of the connecting plate, the lower end of the threaded block is fixedly connected to a slider, the slider is movably connected to the inside of a slide groove opened on the upper surface of the connecting plate, and another display board assembly is placed inside the vertical box.
[0009] As a preferred technical solution of the present invention, the display board assembly includes a writing display board, a card block 1 is fixedly connected to the left end of the writing display board, the card block 1 is clamped with the left side of the front end of the adjustment mounting assembly, a card slot 1 is opened inside the right end of the writing display board, the card slot 1 is clamped with the right side of the front end of the adjustment mounting assembly, the writing display board is movably connected to the overlap board with the overlap groove opened inside the upper end through a limit block fixedly connected to its lower end, and the card block 1 is adapted to the card slot 1.
[0010] As a preferred technical solution of the present invention, the adjustment mounting assembly includes a shell, a connecting block is fixedly connected to the upper side of the rear end of the shell, a square frame is fixedly connected to the left and right sides of the rear end of the shell, the lower side of the front end of the shell is fixedly connected to the lap plate, and the shell is movably connected to four L-shaped rods through two circular through holes opened inside the left and right ends thereof, and the front ends of the four L-shaped rods are fixedly connected to the rear ends of the two clamping plates in groups of two, the left clamping plate is clamped with the clamping block one through the clamping slot two opened inside the right side thereof, and the right clamping plate is clamped with the clamping slot one through the clamping block two fixedly connected to its left end.
[0011] As a preferred technical solution of the present invention, the four L-shaped rods are grouped in pairs, and their relatively close ends are respectively fixedly connected to the relatively far ends of the two vertical plates, and the two vertical plates are movably connected to one end of the four hinged rods through two hinged seats arranged on their relatively close sides, and the four hinged rods are movably connected to the left and right ends of the two threaded blocks 2 through another hinged seat arranged at the other end, and the two threaded blocks 2 are threadedly connected to the same threaded rod 2, and the upper and lower threads of the threaded rod 2 are in opposite directions, and the lower end of the threaded rod 2 is movably connected to the bottom surface of the shell, and the upper end of the threaded rod 2 passes through the upper side wall of the shell and is arranged on the outside of the shell, and the upper end of the threaded rod 2 is fixedly connected to a rotating handle 2, and the upper and lower ends of the two vertical plates are fixedly connected to a slider 2, and the four sliders 2 are movably connected in groups of two to the inside of two slide grooves 2 opened on the upper and lower side surfaces of the shell.
[0012] As a preferred technical solution of the present invention, the base assembly includes a concave base, the upper end of the concave base is fixedly connected to a placement box, the upper end of the concave base is fixedly connected to the lower end of the vertical box and the lower end of the concave rod, the end of the concave base close to the connecting plate is fixedly connected to the connecting plate, and the front and rear sides of the inner upper surface of the concave base are fixedly connected to support base 2, and the two support bases 2 are movably connected to the front and rear sides of the rotating shaft 1 through circular holes opened therein.
[0013] As a preferred technical solution of the present invention, two support blocks are fixedly connected to the rotating shaft 1, and the two support blocks are fixedly connected to the upper end of the rotating plate. Two movable wheels are provided at the lower end of the rotating plate. The front and rear ends of the rotating shaft 1 are fixedly connected to worm wheels, and the two worm wheels are respectively engaged with two worms for transmission. The ends of the two worms close to the connecting plate are movably connected to the side surface of the concave base close to the connecting plate, and the ends of the two worms away from the connecting plate pass through the end of the concave base away from the connecting plate and are respectively fixedly connected to the two sprockets 1.
[0014] As a preferred technical solution of the present invention, the two sprockets 1 are both connected to the sprocket 2 through the same chain, the sprocket 2 is fixedly connected to the rotating shaft 2, the end of the rotating shaft 2 close to the connecting plate is movably connected to the end of the concave base away from the connecting plate, the side of the rotating shaft 2 away from the connecting plate is movably connected to the L-shaped plate, the end of the L-shaped plate close to the connecting plate is fixedly connected to the concave base, and the end of the rotating shaft 2 away from the connecting plate is fixedly connected to the rotating handle 3.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. The present invention can drive the adjustable mounting assembly to rotate around the upper end of the concave rod through the mutual cooperation between the provided threaded rod 1, the threaded block 1, the T-shaped rod and the square frame, thereby realizing the adjustment process of the display angle of the display board assembly installed on the adjustable mounting assembly, so that the device can appropriately adjust the display angle of the content to be displayed according to the needs of English teaching during use, thereby increasing the flexibility of the device during the display process. The mutual cooperation between the provided adjustable mounting assembly and the overlapping plate can quickly realize the installation and fixing process of the display board assembly. At the same time, when the display board is damaged, the display board assembly can be conveniently removed from the adjustable mounting assembly, which is convenient for its replacement.
[0017] 2. The present invention cooperates with the writing display board, the card block 1 and the card slot 1 to dock the two writing display boards when the display area of the device needs to be increased. Then, the adjustment installation assembly and the overlap plate cooperate with each other to realize the installation process of the two writing fixed boards. At this time, the area of the device can be increased, which effectively solves the problem that the display area of the existing educational display device is fixed and cannot be adjusted during use, and further increases the flexibility of the device. The base assembly can make the movement of the device more convenient. At the same time, when the device needs to be fixed, the moving wheels provided on the base assembly can be stored in the interior of the concave base. At this time, the concave base is in contact with the ground, thereby fixing the device and preventing it from moving. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the main cross-sectional three-dimensional structure of the present invention;
[0019] Figure 2 This is a schematic diagram of the main three-dimensional structure of the present invention;
[0020] Figure 3 It is a right-side perspective structural diagram of the present invention;
[0021] Figure 4 This is a schematic diagram of the main cross-sectional three-dimensional structure of the base assembly of the present invention;
[0022] Figure 5 It is a schematic diagram of a right-side sectional three-dimensional structure of a base assembly of the present invention;
[0023] Figure 6 This is a schematic diagram of the main cross-sectional three-dimensional structure of the adjustable mounting assembly of the present invention;
[0024] Figure 7 It is a schematic diagram of the main three-dimensional structure of the display board assembly of the present invention.
[0025] In the figure: 1 connecting plate, 2 slider 1, 3 slide groove 1, 4 threaded rod 1, 5 threaded block 1, 6 T-shaped rod, 7 base assembly, 71 concave base, 72 rotating plate, 73 rotating shaft 1, 74 moving wheel, 75 sprocket 2, 76 rotating shaft 2, 77 L-shaped plate, 78 sprocket 1, 79 worm, 710 support block, 711 support seat 2, 712 worm wheel, 8 concave rod, 9 adjustment mounting assembly, 91 shell, 92 threaded block 2, 93 threaded rod 2, 94 hinged rod, 95 slider 2, 96 vertical plate, 97 slide groove 2, 98 L-shaped rod, 99 slot 2, 910 clamping plate, 911 clamping block 2, 10 vertical box placement, 11 support seat 1, 12 display board assembly, 121 writing display board, 122 limit block, 123 clamping block 1, 124 slot 1, 13 connecting block, 14 placement box, 15 overlap plate, 16 square frame. DETAILED DESCRIPTION
[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0027] like Figure 1-7As shown, the present invention provides a technical solution: an adjustable display device for English education, comprising a connecting plate 1, the left and right ends of the connecting plate 1 are fixedly connected to a base assembly 7, the upper ends of the two base assemblies 7 are fixedly connected to the same placement vertical box 10, and the upper ends of the two base assemblies 7 are provided with a placement box 14. The two base assemblies 7 can be connected by the provided connecting plate 1, and the provided base assembly 7 can fix the placement vertical box 10 and the placement box 14. The display board assembly 12 can be conveniently placed by the provided placement vertical box 10, and some teaching auxiliary tools used in the English teaching display process can be placed by the provided placement box 14. The upper ends of the two base assemblies 7 are respectively The left and right ends of the display board assembly 12 are movably connected to the lower end of the concave rod 8, and the concave rod 8 is movably connected to the connecting block 13 with a circular connecting hole inside. The connecting block 13 is fixedly connected to the rear end of the adjustment mounting assembly 9, and the front end of the adjustment mounting assembly 9 is fixedly connected with a lap plate 15. The lap plate 15 is movably connected to the lower end of the display board assembly 12 through the lap groove opened inside its upper end. The left and right ends of the display board assembly 12 are respectively connected to the relatively close sides of the front end of the adjustment mounting assembly 9. The base assembly 7 is provided to fix the concave rod 8. The mutual cooperation between the concave rod 8 and the connecting block 13 can support the adjustment mounting assembly 9 without affecting the rotation of the adjustment mounting assembly 9. The mounting assembly 9 can fix the lap plate 15. The cooperation between the lap plate 15 and the adjusting mounting assembly 9 can fix the display board assembly 12. At the same time, the display board assembly 12 can be conveniently removed from the device for replacement. When the display area of the device needs to be increased, the two display board assemblies 12 can be fixed, thereby increasing the display area of the device. The rear end of the adjusting mounting assembly 9 is fixedly connected to two square frames 16, and the two square frames 16 are movably connected to the left and right sides of the T-shaped rod 6 respectively. The lower end of the T-shaped rod 6 is fixedly connected to the upper end of the threaded block 5. The threaded block 5 is threadedly connected to the threaded rod 4. The threaded rod 4 is rotated to drive the screw The pattern block 15 moves forward, thereby driving the T-shaped rod 6 to move forward. At this time, the two square frames 16 cooperate with each other to drive the adjustment mounting assembly 9 to rotate around the upper end of the concave rod 8, thereby realizing the adjustment process of the display angle of the display board assembly 12 installed on the adjustment mounting assembly 9, which is convenient for the display work in English teaching. The front and rear polished rod parts of the threaded rod 4 are movably connected with a support seat 11, and the two support seats 11 are fixedly connected to the upper end of the connecting plate 1. The lower end of the threaded block 15 is fixedly connected with a slider 2, and the slider 2 is movably connected to the inside of the slide groove 3 opened on the upper surface of the connecting plate 1. The support seat 11 provided can support the threaded rod 4.The mutual cooperation between the slider 2 and the slide groove 3 can limit the movement direction of the threaded block 5, and another display board assembly 12 is placed inside the vertical box 10. The display board assembly 12 includes a writing display board 121, and the left end of the writing display board 121 is fixedly connected with a clamping block 123. The clamping block 123 is clamped with the left front end of the adjustment installation assembly 9, and a clamping groove 124 is opened inside the right end of the writing display board 121. The clamping groove 124 is clamped with the right front end of the adjustment installation assembly 9. The writing display board 121 is movably connected to the overlap plate 15 with an overlap groove opened inside the upper end through the limit block 122 fixedly connected to its lower end, and the clamping block 123 is adapted to the clamping groove 124. English teaching content can be written and displayed. The two writing display boards 121 can be docked together through the mutual cooperation between the provided card block 123 and the card slot 124, which facilitates the fixation of the two writing display boards 121 in the subsequent process. The provided limit block 122 can limit the placement position of the writing display board 121. The adjustment installation component 9 includes a shell 91. The rear end of the shell 91 is fixedly connected to a connecting block 13 and two square frames 16. The lower side of the front end of the shell 91 is fixedly connected to the lap plate 15. The shell 91 is movably connected to four L-shaped rods 98 through two circular through holes opened at both ends thereof. The front ends of the four L-shaped rods 98 are fixed to the two card plates 910 in pairs. The left side clamping plate 910 is clamped with the clamping block 123 through the clamping slot 2 99 opened inside the right side thereof, and the right side clamping plate 910 is clamped with the clamping block 124 through the clamping block 2 911 fixedly connected at its left end. The four L-shaped rods 98 are grouped in twos, and their relatively close ends are respectively fixedly connected to the two vertical plates 96. The relatively close sides of the two vertical plates 96 are movably connected to two hinged rods 94. The four hinged rods 94 are grouped in twos, and their relatively close ends are respectively movably connected to the left and right ends of the two threaded blocks 2 92. The two threaded blocks 2 92 are both threadedly connected to the same threaded rod 2 93. The thread directions of the upper and lower sides of the threaded rod 2 93 are opposite. The lower end of the threaded rod 2 93 is movably connected to the bottom surface of the inner part of the shell 91, and the upper end of the threaded rod 2 93 passes through the upper end of the shell 91. The side wall is arranged on the outside of the shell 91, and the upper and lower ends of the two vertical plates 96 are fixedly connected with sliders 2 95. The four sliders 2 95 are movably connected in groups of two to the inside of two slide grooves 2 97 provided on the upper and lower side surfaces of the shell 91. By rotating the threaded rod 2 93, the two threaded blocks 2 92 are driven to move closer to each other. At this time, under the action of the provided hinged rod 94, the two vertical plates 96 can be driven to move away from each other, and then under the action of the provided L-shaped rod 98, the two clamping plates 910 can be driven to move away from each other, so that the clamping block 123 and the clamping groove 2 99 and the clamping block 2 911 and the clamping groove 2 124 are separated from each other. At this time, the display board assembly 12 can be conveniently removed from the adjustment mounting assembly 9 for easy replacement.And by continuing to rotate the threaded rod 2 93, the two clamping plates 910 are driven to move away from each other to the maximum distance. At this time, the two display board assemblies 12 are docked together through the mutual cooperation between the clamping block 123 and the clamping groove 124 provided on both display board assemblies 12, and are placed on the lap board 15. Then, by rotating the threaded rod 2 93 in the opposite direction, the installation and fixing effect of the two docked display board assemblies 12 is achieved under the mutual cooperation between the provided threaded block 2 92, the hinged rod 94, the vertical plate 96, the L-shaped rod 98, the clamping block 2 911 and the clamping groove 2 99, which effectively increases the display area of the device. The mutual cooperation between the provided slider 2 95 and the slide groove 2 97 can limit the movement direction of the vertical plate 96. The function of the system is that the base assembly 7 includes a concave base 71, the upper end of the concave base 71 is fixedly connected to the placement box 14, the upper end of the concave base 71 is fixedly connected to the lower end of the placement vertical box 10 and the lower end of the concave rod 8, the end of the concave base 71 close to the connecting plate 1 is fixedly connected to the connecting plate 1, and the front and rear sides of the inner upper surface of the concave base 71 are fixedly connected to the support seat 2 711, and the two support seats 2 711 are respectively movably connected to the front and rear sides of the rotating shaft 1 73, and two support blocks 710 are fixedly connected to the rotating shaft 1 73. The two support blocks 710 are both fixedly connected to the upper end of the rotating plate 72, and the lower end of the rotating plate 72 is provided with two moving wheels 74. The front and rear ends of the rotating shaft 1 73 are fixedly connected to worm gears 712. The two worm gears 712 are respectively connected to the two The two worm gears 79 are meshed with each other for transmission. One end of the two worm gears 79 close to the connecting plate 1 is movably connected to the side surface of the connecting plate 1 inside the concave base 71. The one end of the two worm gears 79 away from the connecting plate 1 passes through the end of the concave base 71 away from the connecting plate 1 and is fixedly connected to two sprocket wheels 1 78 respectively. The two sprocket wheels 1 78 are transmission-connected to sprocket wheel 2 75 through the same chain. Sprocket wheel 2 75 is fixedly connected to rotating shaft 2 76. One end of rotating shaft 2 76 close to the connecting plate 1 is movably connected to the end of the concave base 71 away from the connecting plate 1. The side of rotating shaft 2 76 away from the connecting plate 1 is movably connected to L-shaped plate 77. The end of L-shaped plate 77 close to the connecting plate 1 is fixedly connected to the concave base 71. The movable wheel 74 provided can make the movement of the device The movement is more convenient. When the device needs to be fixed, the two rotating shafts 2 76 provided on the two base assemblies 7 are rotated, thereby driving the two sprockets 2 75 to rotate. The rotation of the two rotating shafts 2 75 can drive the four sprockets 1 78 to rotate under the action of the two chains, and then drive the four worm gears 79 to rotate. The four worm gears 79 are respectively engaged with the four worm gears 712 for transmission, and thus can drive the two rotating shafts 1 73 to rotate. The rotation of the two rotating shafts 1 73 can drive the two rotating plates 72 and the moving wheels 74 provided thereon to rotate around the two rotating shafts 1 73 respectively under the action of the supporting blocks 710, until the four moving wheels 74 are respectively stored in the inside of the two concave bases 71.At this time, the lower ends of the two concave bases 71 are in contact with the ground, thereby limiting the movement of the device and achieving a fixed effect on the device. The second support base 711 can support the first rotating shaft 73.
[0028] The operating steps of the present invention are:
[0029] When the display angle of the display board assembly 12 installed on the adjustable mounting assembly 9 needs to be adjusted during the application of the device, the threaded rod 14 is rotated to drive the threaded block 15 to move forward, and then the T-shaped rod 6 can be driven forward by the mutual cooperation between the slider 12 and the slide groove 13. At this time, the two square frames 16 can drive the adjustable mounting assembly 9 to rotate around the upper end of the concave rod 8 under the mutual cooperation of the two square frames 16, thereby realizing the adjustment process of the display angle of the display board assembly 12 installed on the adjustable mounting assembly 9, which is convenient for the display work in English teaching;
[0030] When it is necessary to increase the display area of the device, by rotating the threaded rod 2 93, the two clamping plates 910 are driven to move away from each other to the maximum distance under the mutual cooperation between the provided hinged rod 94, the threaded block 2 92, the vertical plate 96 and the L-shaped rod 98. At this time, the two display board assemblies 12 are docked together through the mutual cooperation between the clamping block 123 and the clamping groove 124 provided on both display board assemblies 12, and are placed on the lap plate 15. Then, by rotating the threaded rod 2 93 in the opposite direction, the two docking can be achieved under the mutual cooperation between the provided threaded block 2 92, the hinged rod 94, the vertical plate 96, the L-shaped rod 98, the clamping block 2 911 and the clamping groove 2 99. By fixing the display board assembly 12 together, the process of increasing the display area of the device can be completed. When the device needs to be fixed, by rotating the rotating shaft 2 76 provided on both base assemblies 7, the two rotating plates 72 and the moving wheels 74 provided thereon can be driven to rotate around the two rotating shafts 1 73 respectively under the action of the provided sprocket 2 75, sprocket 1 78, worm 79, worm wheel 712, rotating shaft 1 73 and support block 710 until the four moving wheels 74 are respectively received into the interior of the two concave bases 71. At this time, the lower ends of the two concave bases 71 are in contact with the ground, thereby limiting the movement of the device and achieving fixation of the device.
[0031] In the description of the present invention, it should be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0032] In the present invention, unless otherwise clearly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be internal communication between two elements or an interaction relationship between two elements. Unless otherwise clearly specified and limited, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to specific circumstances.
[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. An adjustable display device for English education, comprising a connecting plate (1), characterized in that: The left and right ends of the connecting plate (1) are fixedly connected to the base assembly (7), the upper ends of the two base assemblies (7) are fixedly connected to the same vertical box (10), the upper ends of the two base assemblies (7) are provided with a placement box (14), the upper ends of the two base assemblies (7) are respectively fixedly connected to the left and right sides of the lower end of the concave rod (8), the concave rod (8) is movably connected to the connecting block (13) with a circular connecting hole provided therein, the connecting block (13) is fixedly connected to the rear end of the adjusting mounting assembly (9), and the front end of the adjusting mounting assembly (9) is fixedly connected There is a lap plate (15), the lap plate (15) is movably connected to the lower end of the display board assembly (12) through a lap groove provided inside the upper end thereof, the left and right ends of the display board assembly (12) are respectively clamped with the relatively close sides of the front end of the adjustment mounting assembly (9), the rear end of the adjustment mounting assembly (9) is fixedly connected to two square frames (16), the two square frames (16) are movably connected to the left and right sides of the T-shaped rod (6), the lower end of the T-shaped rod (6) is fixedly connected to the upper end of the threaded block (5), and the threaded block (5) is threadedly connected to the threaded rod (4); The base assembly (7) includes a concave base (71), the upper end of the concave base (71) is fixedly connected to a placement box (14), the upper end of the concave base (71) is fixedly connected to the lower end of the placement vertical box (10) and the lower end of the concave rod (8), the end of the concave base (71) close to the connecting plate (1) is fixedly connected to the connecting plate (1), the front and rear sides of the inner upper surface of the concave base (71) are fixedly connected to the support seat 2 (711), and the two support seats 2 (711) are movably connected to the front and rear sides of the rotating shaft 1 (73) respectively; Two support blocks (710) are fixedly connected to the rotating shaft (73), and the two support blocks (710) are fixedly connected to the upper end of the rotating plate (72). Two moving wheels (74) are provided at the lower end of the rotating plate (72). The front and rear ends of the rotating shaft (73) are fixedly connected to worm wheels (712), and the two worm wheels (712) are respectively engaged with two worms (79) for transmission. The ends of the two worms (79) close to the connecting plate (1) are movably connected to the side surface of the concave base (71) close to the connecting plate (1), and the ends of the two worms (79) away from the connecting plate (1) pass through the end of the concave base (71) away from the connecting plate (1) and are respectively fixedly connected to the two sprockets (78).
2. The adjustable display device for English education according to claim 1, characterized in that: The threaded rod (4) is movably connected to a support seat (11) on both the front and rear polished rod parts. The two support seats (11) are fixedly connected to the upper end of the connecting plate (1). The lower end of the threaded block (5) is fixedly connected to a slider (2). The slider (2) is movably connected to the inside of a slide groove (3) opened on the upper surface of the connecting plate (1). Another display board assembly (12) is placed inside the vertical box (10).
3. The adjustable display device for English education according to claim 1, characterized in that: The display board assembly (12) includes a writing display board (121), a card block (123) fixedly connected to the left end of the writing display board (121), the card block (123) being clamped to the left side of the front end of the adjustment installation assembly (9), a card slot (124) provided inside the right end of the writing display board (121), the card slot (124) being clamped to the right side of the front end of the adjustment installation assembly (9), the writing display board (121) being movably connected to a lap plate (15) having a lap slot provided inside the upper end through a limit block (122) fixedly connected to the lower end thereof, the card block (123) being adapted to the card slot (124).
4. The adjustable display device for English education according to claim 3, characterized in that: The adjustment mounting assembly (9) includes a shell (91), the rear end of the shell (91) is fixedly connected to a connecting block (13) and two square frames (16), the lower side of the front end of the shell (91) is fixedly connected to the lap plate (15), the shell (91) is movably connected to four L-shaped rods (98) through two circular through holes opened in the left and right ends thereof, the front ends of the four L-shaped rods (98) are fixedly connected to two clamping plates (910) in pairs, the left clamping plate (910) is clamped to the clamping block 1 (123) through the clamping slot 2 (99) opened in the right end thereof, and the right clamping plate (910) is clamped to the clamping slot 1 (124) through the clamping block 2 (911) fixedly connected to the left end thereof.
5. The adjustable display device for English education according to claim 4, characterized in that: The four L-shaped rods (98) are arranged in pairs, and their relatively close ends are fixedly connected to the two vertical plates (96). The relatively close sides of the two vertical plates (96) are movably connected to two hinged rods (94). The four hinged rods (94) are arranged in pairs, and their relatively close ends are movably connected to the left and right ends of the two threaded blocks (92). The two threaded blocks (92) are both threadedly connected to the same threaded rod (93). The thread directions of the upper and lower sides of the threaded rod (93) are opposite. The lower end of the threaded rod (93) is movably connected to the bottom surface of the shell (91). The upper end of the threaded rod (93) passes through the upper side wall of the shell (91) and is arranged outside the shell (91). The upper and lower ends of the two vertical plates (96) are fixedly connected to the slider (95). The four sliders (95) are arranged in pairs, and are movably connected to the inside of the two slide grooves (97) opened on the upper and lower side surfaces of the shell (91).
6. The adjustable display device for English education according to claim 1, characterized in that: The two sprockets 1 (78) are both connected to the sprocket 2 (75) by a same chain. The sprocket 2 (75) is fixedly connected to the rotating shaft 2 (76). The end of the rotating shaft 2 (76) close to the connecting plate (1) is movably connected to the end of the concave base (71) away from the connecting plate (1). The side of the rotating shaft 2 (76) away from the connecting plate (1) is movably connected to the L-shaped plate (77). The end of the L-shaped plate (77) close to the connecting plate (1) is fixedly connected to the concave base (71).
Citation Information
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