A display device for English teaching and a method of using the same

Abstract

The present invention discloses a display device for English teaching and a method of using the same, comprising a bottom plate, a support rod and a fixed writing board; a rotating plate is rotatably connected to the top of the bottom plate, both left and right ends of the rotating plate are fixedly connected to side plates, a movable block is movably connected to the side plate, one end of the movable block is rotatably connected to the movable plate, and the movable plate is connected to the side plate through a locking piece; the lower end of the support rod is fixedly connected to the movable plate, the upper end of the support rod is detachably connected to the connecting block, the connecting block is rotatably connected to the rotating block, and the rotating block is fixedly connected to the connecting rod; the fixed writing board is detachably connected to the end of the connecting rod, the present invention facilitates the installation and disassembly of the fixed writing board, and the relative positions of the fixed writing board and the movable writing board can be adjusted to facilitate writing teaching display, thereby bringing convenience to users.

Description

Technical Field

[0001] The invention relates to the technical field of English teaching equipment, in particular to a display device for English teaching and a use method thereof. Background Art

[0002] English teaching refers to the process of teaching English to people whose first language is English or not. English teaching involves a variety of professional theoretical knowledge, including linguistics, second language acquisition, lexicology, syntax, stylistics, corpus theory, cognitive psychology, etc. When conducting English teaching demonstrations, it is generally necessary to use a writing board for repeated writing for English teaching demonstrations. However, the existing display devices for English teaching are generally one-piece settings, so it is impossible to install and disassemble them, so it is inconvenient to move the English teaching display devices. At the same time, the existing display devices for English teaching generally only have one writing board, so when the writing board is full, it needs to be cleaned, which is inconvenient to compare the written content, which brings inconvenience to the user's teaching. Summary of the invention

[0003] The purpose of the present invention is to provide a display device for English teaching and a method of using the same, so as to solve the problem that the existing display devices for English teaching mentioned in the above background technology are generally one-piece and cannot be installed and disassembled, and the existing display devices for English teaching are generally only provided with a writing board.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A display device for English teaching, comprising a bottom plate, a support rod and a fixed writing board;

[0006] A rotating plate is rotatably connected to the top of the bottom plate, and both left and right ends of the rotating plate are fixedly connected to side plates. A movable block is movably connected to the side plate, and one end of the movable block is rotatably connected to the movable plate, and the movable plate is connected to the side plate through a locking member.

[0007] The lower end of the support rod is fixedly connected to the movable plate, the upper end of the support rod is detachably connected to a connecting block, the connecting block is rotatably connected to a rotating block, and the rotating block is fixedly connected to a connecting rod;

[0008] The fixed writing board is detachably connected to the end of the connecting rod, and a receiving groove is provided at both ends of the fixed writing board. A sliding plate is movably connected in the receiving groove, and a mobile writing board is rotatably connected to the side wall of the sliding plate. A groove is provided on the outer side wall of the rotating block, and a push plate is elastically connected in the groove. An insertion rod is fixedly connected to the push plate, and one end of the insertion rod passes through the side wall of the groove and is inserted into the mobile writing board.

[0009] As a further solution of the present invention: the rotating plate is rotatably connected to the upper surface of the bottom plate through a rotating shaft, and the rotating plate is rotatably connected above the bottom plate through the rotating shaft;

[0010] The side plate is provided with a slide groove for sliding connection of the movable block, and the setting of the slide groove facilitates the adjustment of the position of the movable block on the side plate;

[0011] The movable plate is rotatably connected to the end of the movable block via a rotating shaft, and the arrangement of the rotating shaft facilitates the relative rotation of the movable plate to the movable block;

[0012] The locking piece is a locking bolt, and the movable plate is locked in the slide groove by the locking bolt. The slide groove and the movable block are both provided with bolt holes for threaded connection of the locking bolt. When the position of the support rod needs to be adjusted, since the lower end of the support rod is fixedly connected to the movable plate, the user manually turns the locking bolt. When one end of the locking bolt is disengaged from the slide groove and the movable block, the user manually moves the support rod to adjust the position of the support rod. Thereafter, the user manually turns the locking bolt, and the movable plate is locked to the side plate through the locking bolt, that is, the locking of the support rod is achieved.

[0013] As a further solution of the present invention: a bearing plate is fixedly connected to the side plate, and a bearing groove matching the support rod is downwardly opened on the upper surface of the bearing plate, and a limiting bolt is threadedly connected above the bearing groove. When the device is not needed, the user places the support rod horizontally and places one end of the support rod in the bearing groove of the bearing plate, and then manually rotates the limiting bolt. Since the limiting bolt is located above the support rod, the limiting effect of the support rod is achieved by the limiting bolt.

[0014] As a further solution of the present invention: the connecting block is connected to the upper end of the support rod through a connecting bolt; the rotating block is rotatably connected to the connecting block through a rotating column. The setting of the connecting bolts facilitates the installation and disassembly of the connecting block on the upper end of the support rod, and the action of the rotating column facilitates the rotation of the rotating block on the connecting block.

[0015] As a further solution of the present invention: a limiting groove is provided on the outer side wall of the fixed writing board, a limiting block is movably connected in the limiting groove, a clamping rod is fixedly connected to the limiting block, the end of the connecting rod is fixedly connected to a fixed block, a socket for the clamping rod is provided on the fixed block, and a locking mechanism for locking the clamping rod is provided on the fixed block.

[0016] As a further solution of the present invention: the locking mechanism includes a threaded rod, a circular plate is provided on one side of the fixed block, a locking rod is fixedly connected to the side wall of the circular plate, one end of the locking rod passes through the fixed block and is inserted on the clamping rod, the threaded rod is fixedly connected to the circular plate, one end of the threaded rod passes through the fixed block and is threadedly connected with a nut, when it is necessary to install the fixed writing board between the fixed blocks, the user manually pushes the limit block, and inserts one end of the clamping rod into the insertion hole of the fixed block, then passes one end of the locking rod through the fixed block and is inserted on the clamping rod, and at the same time, one end of the threaded rod passes through the fixed block and extends to the other side thereof, the user manually rotates the nut so that the nut is threadedly connected to the nut, thereby realizing the locking of the locking rod on the clamping rod, that is, realizing the installation of the fixed writing board between the fixed blocks.

[0017] As a further solution of the present invention: the mobile writing board is rotatably connected to the side wall of the sliding plate through a hinge;

[0018] The push plate and the groove are fixedly connected via a spring, and the spring is arranged to facilitate the push plate to be elastically arranged in the groove.

[0019] As a further solution of the present invention: a slot for inserting a rod is provided at the end of the movable writing board, and the movable writing board is connected to the receiving groove by a clamping bolt. When the movable writing board is not needed, it can be conveniently locked in the receiving groove by the clamping bolt.

[0020] As a further solution of the present invention: the connecting rod is set in two, and the middle parts of the two connecting rods are connected to the rotating block by clamping bolts. The clamping bolts facilitate the installation and disassembly between the two connecting rods, and also facilitate the installation and disassembly of the connecting rod on the rotating block.

[0021] A method for using a display device for English teaching, the specific steps of the method comprising:

[0022] Manually turn the locking bolt. When one end of the locking bolt is out of the slide slot and the movable block, manually turn the support rod to make the support rod and the bottom plate appear vertical. Then, the position of the support rod can be adjusted. Then, manually turn the locking bolt. The movable plate is locked on the side plate through the locking bolt, thus locking the support rod.

[0023] When the fixed writing board is placed between the fixed blocks, the limiting block is manually pushed, and one end of the clamping rod is inserted into the insertion hole of the fixed block, and then one end of the locking rod is passed through the fixed block and inserted on the clamping rod, and at the same time, one end of the threaded rod passes through the fixed block and extends to the other side thereof, and the nut is manually rotated so that the nut is threadedly connected to the nut, thereby realizing the locking rod being locked on the clamping rod, that is, realizing the installation of the fixed writing board between the fixed blocks;

[0024] Manually pull the mobile writing board, manually push the push plate, and realize the movement of the insertion rod through the push plate. Then the mobile writing board is located on the outside of the fixed writing board, and the mobile writing board is rotated so that one end of the mobile writing board is attached to the rotating block. The push plate is manually pushed, and the movement of the push plate is realized due to the action of the spring. The movement of the insertion rod is driven by the push plate. When one end of the insertion rod is inserted on the mobile writing board, the mobile writing board is locked on the rotating block. Therefore, English teaching can be carried out by writing on the fixed writing board. When the fixed writing board is full of writing, the rotating block can be rotated to write on another fixed writing board for English teaching. At the same time, the rotating board can be rotated to write on the mobile writing board for English teaching.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] By rotating a rotating plate connected above the bottom plate, the position of the rotating plate relative to the bottom plate can be adjusted, that is, the relative positions of the fixed writing board and the movable writing board can be adjusted. When the fixed writing board is full of writing, the rotating plate can be rotated at the same time, and writing can be done on the movable writing board for English teaching.

[0027] The fixed writing board is detachably connected to the end of the connecting rod, and the left and right ends of the fixed writing board are provided with accommodating grooves, and a sliding plate is movably connected in the accommodating groove. The movable writing board is rotatably connected to the side wall of the sliding plate, which is convenient for adjusting the position between the fixed writing board and the movable writing board. The movable writing board is manually pulled, and the push plate is manually pushed. The movement of the insertion rod is realized by the push plate. Then the movable writing board is located at the outside of the fixed writing board, and the movable writing board is rotated to make one end of the movable writing board fit on the rotating block. The push plate is manually pushed, and the movement of the push plate is realized due to the action of the spring. The movement of the insertion rod is driven by the push plate. When one end of the insertion rod is inserted on the movable writing board, the movable writing board is locked on the rotating block. Therefore, writing can be done on the fixed writing board for English teaching. When the fixed writing board is full of writing, the rotating block can be rotated to write on the other fixed writing board for English teaching. At the same time, the rotating board can be rotated to write on the movable writing board for English teaching.

[0028] By locking the movable plate in the slide slot by means of a locking bolt, it is easy to lock the movable plate in the slide slot by means of the locking bolt. When the position of the support rod needs to be adjusted, since the lower end of the support rod is fixedly connected to the movable plate, the user manually turns the locking bolt. When one end of the locking bolt is disengaged from the slide slot and the movable block, the user manually moves the support rod to adjust the position of the support rod. Thereafter, the user manually turns the locking bolt to lock the movable plate to the side plate by means of the locking bolt, thereby achieving locking of the support rod.

[0029] By detachably connecting the fixed writing board to the end of the connecting rod, it is convenient to install and disassemble the fixed writing board at the end of the connecting rod. When the fixed writing board needs to be installed between the fixed blocks at the end of the connecting rod, the user manually pushes the limit block and inserts one end of the clamping rod into the insertion hole of the fixed block, then passes one end of the locking rod through the fixed block and is inserted on the clamping rod, and at the same time, one end of the threaded rod passes through the fixed block and extends to the other side thereof. The user manually rotates the nut so that the nut is threadedly connected to the nut, thereby locking the locking rod on the clamping rod, that is, installing the fixed writing board between the fixed blocks.

[0030] This display device for English teaching facilitates the installation and disassembly of the fixed writing board, and can adjust the relative positions of the fixed writing board and the movable writing board to facilitate writing teaching demonstration, thus bringing convenience to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of a mobile writing board in a display device for English teaching after it is unfolded;

[0032] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0033] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0034] Figure 4 A schematic diagram of the connection between a bottom plate and a rotating plate in a display device for English teaching;

[0035] Figure 5 A schematic diagram of the connection between a bottom plate and a connecting rod in a display device for English teaching;

[0036] Figure 6 for Figure 5 A partial enlarged view of the middle A;

[0037] Figure 7 A schematic diagram of a mobile writing board in a display device for English teaching when it is retracted;

[0038] Figure 8 It is a schematic diagram of the interior between a fixed block and a locking rod in a display device for teaching English;

[0039] Fig. 9 A schematic diagram of a circular plate and a locking rod in a display device for teaching English;

[0040] Fig.10 A schematic diagram of the interior of a rotating block in a display device for teaching English;

[0041] Fig.11 The figure is a schematic diagram of the interior of a fixed writing board in a display device for English teaching;

[0042] Fig.12 The figure is an external schematic diagram of a fixed writing board in a display device for English teaching;

[0043] In the figure: 1, bottom plate; 2, support rod; 3, fixed writing board; 4, rotating plate; 5, side plate; 6, movable block; 7, movable plate; 8, connecting block; 9, rotating block; 10, connecting rod; 11, receiving groove; 12, sliding plate; 13, mobile writing board; 14, clamping bolt 1; 15, groove; 16, push plate; 17, plug rod; 18, rotating shaft; 19, slide groove; 20, rotating shaft; 21, fixed block; 22, bolt hole; 23, bearing plate; 24, bearing groove; 25, limit bolt; 26, connecting bolt; 27, rotating column; 28, limit groove; 29, limit block; 30, clamping rod; 31, jack; 32, threaded rod; 33, round plate; 34, locking rod; 35, nut; 36, hinge; 37, spring; 38, clamping bolt 2; 39, locking piece; 40, slot. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0045] See also Figure 1-12 ,In an embodiment of the present invention, a display device for English teaching includes a bottom board 1, a support rod 2, and a fixed writing board 3;

[0046] A rotating plate 4 is rotatably connected to the top of the bottom plate 1, and the left and right ends of the rotating plate 4 are fixedly connected to side plates 5. A movable block 6 is movably connected to the side plate 5, and one end of the movable block 6 is rotatably connected to a movable plate 7, and the movable plate 7 is connected to the side plate 5 through a locking member 39;

[0047] The lower end of the support rod 2 is fixedly connected to the movable plate 7, and the upper end of the support rod 2 is detachably connected to a connecting block 8, a rotating block 9 is rotatably connected to the connecting block 8, and a connecting rod 10 is fixedly connected to the rotating block 9;

[0048] The fixed writing board 3 is detachably connected to the end of the connecting rod 10, and a receiving groove 11 is provided at both ends of the fixed writing board 3. A sliding plate 12 is movably connected in the receiving groove 11, and a mobile writing board 13 is rotatably connected to the side wall of the sliding plate 12. A groove 15 is provided on the outer wall of the rotating block 9, and a push plate 16 is elastically connected in the groove 15. An insertion rod 17 is fixedly connected to the push plate 16, and one end of the insertion rod 17 passes through the side wall of the groove 15 and is inserted into the mobile writing board 13.

[0049] The rotating plate 4 is rotatably connected to the upper surface of the bottom plate 1 through the rotating shaft 18, and the rotating plate 4 is rotatably connected to the upper surface of the bottom plate 1 through the rotating shaft 18;

[0050] The side plate 5 is provided with a slide groove 19 for sliding connection of the movable block 6. The setting of the slide groove 19 facilitates adjustment of the position of the movable block 6 on the side plate 5.

[0051] The movable plate 7 is rotatably connected to the end of the movable block 6 via a rotating shaft 20. The setting of the rotating shaft 20 facilitates the movable plate 7 to rotate relative to the movable block 6.

[0052] The locking piece 39 is a locking bolt, and the movable plate 7 is locked in the slide groove 19 by the locking bolt. The slide groove 19 and the movable block 6 are both provided with bolt holes 22 for threaded connection of the locking bolt. When the position of the support rod 2 needs to be adjusted, since the lower end of the support rod 2 is fixedly connected to the movable plate 7, the user manually turns the locking bolt. When one end of the locking bolt is disengaged from the slide groove 19 and the movable block 6, the user manually moves the support rod 2 to adjust the position of the support rod 2. Thereafter, the user manually turns the locking bolt, and the movable plate 7 is locked to the side plate 5 through the locking bolt, thereby achieving locking of the support rod.

[0053] A bearing plate 23 is fixedly connected to the side plate 5, and a bearing groove 24 matching the support rod 2 is downwardly opened on the upper surface of the bearing plate 23, and a limiting bolt 25 is threadedly connected above the bearing groove 24. When the device is not needed, the user places the support rod 2 horizontally and places one end of the support rod 2 in the bearing groove 24 of the bearing plate 23, and then manually rotates the limiting bolt 25. Since the limiting bolt 25 is located above the support rod 2, the limiting bolt 25 realizes the limiting effect of the support rod 2.

[0054] The connecting block 8 is connected to the upper end of the support rod 2 through a connecting bolt 26; the rotating block 9 is rotatably connected to the connecting block 8 through a rotating column 27. The setting of the connecting bolt 26 facilitates the installation and disassembly of the connecting block 8 at the upper end of the support rod 2, and the action of the rotating column 27 facilitates the rotation of the rotating block 9 on the connecting block 8.

[0055] A limit groove 28 is provided on the outer wall of the fixed writing board 3, a limit block 29 is movably connected in the limit groove 28, a clamping rod 30 is fixedly connected to the limit block 29, the end of the connecting rod 10 is fixedly connected to the fixed block 21, a socket 31 for the clamping rod 30 is provided on the fixed block 21, and a locking mechanism for locking the clamping rod 30 is provided on the fixed block 21.

[0056] The locking mechanism includes a threaded rod 32, a circular plate 33 is provided on one side of the fixed block 21, and a locking rod 34 is fixedly connected to the side wall of the circular plate 33, one end of the locking rod 34 passes through the fixed block 21 and is inserted on the clamping rod 30, the threaded rod 32 is fixedly connected to the circular plate 33, one end of the threaded rod 32 passes through the fixed block 21 and is threadedly connected with a nut 35, when it is necessary to install the fixed writing board 3 between the fixed blocks 21, the user manually pushes the limit block 29, and inserts one end of the clamping rod 30 into the insertion hole 31 of the fixed block 21, then passes one end of the locking rod 34 through the fixed block 21 and is inserted on the clamping rod 30, and at the same time, one end of the threaded rod 32 passes through the fixed block 21 and extends to the other side thereof, and the user manually rotates the nut 35 so that the nut 35 is threadedly connected to the nut 35, thereby realizing that the locking rod 34 is locked on the clamping rod 30, that is, the fixed writing board 3 is installed between the fixed blocks 21.

[0057] The movable writing board 13 is rotatably connected to the side wall of the sliding plate 12 via a hinge 36, and the hinge 36 facilitates the rotation of the movable writing board 13 relative to the sliding plate 12;

[0058] The push plate 16 and the groove 15 are fixedly connected via a spring 37 , and the spring 37 is provided to facilitate the push plate 16 to be elastically arranged in the groove 15 .

[0059] A slot 40 for the insertion rod 17 is provided at the end of the mobile writing board 13. The mobile writing board 13 is connected to the receiving groove 11 through a clamping bolt 38. When the mobile writing board 13 is not needed, it is convenient to lock it in the receiving groove 11 through the clamping bolt 38.

[0060] There are two connecting rods 10, and the middle parts of the two connecting rods 10 are connected to the rotating block 9 through a clamping bolt 14. The clamping bolt 14 facilitates the installation and disassembly between the two connecting rods 10, and also facilitates the installation and disassembly of the connecting rod 10 on the rotating block 9.

[0061] A method for using a display device for English teaching, the specific steps of the method comprising:

[0062] Manually rotate the locking bolt. When one end of the locking bolt is out of the slide slot 19 and the movable block 6, manually rotate the support rod 2 so that the support rod 2 and the bottom plate 1 are in a vertical state. Then, the position of the support rod 2 can be adjusted. Then, manually rotate the locking bolt to lock the movable plate 7 on the side plate 5 through the locking bolt, that is, to lock the support rod.

[0063] When the fixed writing board 3 is placed between the fixed blocks 21, the limit block 29 is manually pushed, and one end of the clamping rod 30 is inserted into the insertion hole 31 of the fixed block 21. Then, one end of the locking rod 34 passes through the fixed block 21 and is inserted on the clamping rod 30. At the same time, one end of the threaded rod 32 passes through the fixed block 21 and extends to the other side thereof. The nut 35 is manually rotated so that the nut 35 is threadedly connected to the nut 35, thereby realizing that the locking rod 34 is locked on the clamping rod 30, that is, the fixed writing board 3 is installed between the fixed blocks 21.

[0064] Manually pull the mobile writing board 13, manually push the push plate 16, and realize the movement of the insertion rod 17 through the push plate 16. Then the mobile writing board 13 is located on the outside of the fixed writing board 3, and the mobile writing board 13 is rotated to make one end of the mobile writing board 13 fit on the rotating block 9, and the push plate 16 is manually pushed. Due to the action of the spring 37, the movement of the push plate 16 is realized, and the movement of the insertion rod 17 is driven by the push plate 16. When one end of the insertion rod 17 is inserted on the mobile writing board 13, the mobile writing board 13 is locked on the rotating block 9. Therefore, you can write on the fixed writing board 3 to teach English. When the fixed writing board 3 is full of writing, you can rotate the rotating block 9 to write on another fixed writing board 3 to teach English. At the same time, you can rotate the rotating board 4, and you can write on the mobile writing board 13 to teach English. When the present invention is in use, the user manually rotates the locking bolt. When one end of the locking bolt disengages from the slide slot 19 and the movable block 6, the user manually rotates the support rod 2 to make the support rod 2 and the base plate 1 in a vertical state, and the position of the support rod 2 can be adjusted. Then, the user manually rotates the locking bolt, and the movable plate 7 is locked to the side plate 5 through the locking bolt, that is, the locking of the support rod is achieved; when the user places the fixed writing board 3 between the fixed blocks 21, the user manually pushes the limit block 29, and inserts one end of the card rod 30 into the insertion hole 31 of the fixed block 21, and then passes one end of the locking rod 34 through the fixed block 21 and is inserted on the card rod 30, and at the same time, one end of the threaded rod 32 passes through the fixed block 21 and extends to the other side thereof, and the user manually rotates the nut 35 to make the nut 35 threadedly connected to the nut 35, thereby achieving the locking of the locking rod 34 on the card rod 30, that is, achieving the installation of the fixed writing board 3 The user manually pulls the mobile writing board 13, and the user manually pushes the push plate 16, and the movement of the insertion rod 17 is realized by the push plate 16. Then the mobile writing board 13 is located on the outside of the fixed writing board 3, and the mobile writing board 13 is rotated so that one end of the mobile writing board 13 is attached to the rotating block 9, and the push plate 16 is manually pushed. Due to the action of the spring 37, the movement of the push plate 16 is realized, and the movement of the insertion rod 17 is driven by the push plate 16. When one end of the insertion rod 17 is inserted into the mobile writing board 13, the mobile writing board 13 is locked on the rotating block 9. Therefore, the user can write on the fixed writing board 3 for English teaching. When the fixed writing board 3 is full of writing, the rotating block 9 can be rotated to write on another fixed writing board 3 for English teaching. At the same time, the rotating plate 4 can be rotated so that the mobile writing board 13 is facing the students, and the user can write on the mobile writing board 13 for English teaching.

[0065] The "fixed connection" described in the present invention means that the two interconnected parts are fixed together, generally by welding, screws or gluing; "rotational connection" means that the two parts are connected together and can move relative to each other.

[0066] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A display device for English teaching, characterized in that: It comprises a base plate (1), a support rod (2) and a fixed writing board (3); A rotating plate (4) is rotatably connected to the top of the bottom plate (1), and both left and right ends of the rotating plate (4) are fixedly connected to side plates (5). A movable block (6) is movably connected to the side plate (5), and one end of the movable block (6) is rotatably connected to a movable plate (7), and the movable plate (7) is connected to the side plate (5) via a locking member (39); The lower end of the support rod (2) is fixedly connected to the movable plate (7), the upper end of the support rod (2) is detachably connected to a connecting block (8), the connecting block (8) is rotatably connected to a rotating block (9), and the rotating block (9) is fixedly connected to a connecting rod (10); The fixed writing board (3) is detachably connected to the end of the connecting rod (10); both left and right ends of the fixed writing board (3) are provided with a receiving groove (11); a sliding plate (12) is movably connected in the receiving groove (11); a movable writing board (13) is rotatably connected to the side wall of the sliding plate (12); a groove (15) is provided on the outer side wall of the rotating block (9); a push plate (16) is elastically connected in the groove (15); an insertion rod (17) is fixedly connected to the push plate (16); one end of the insertion rod (17) passes through the side wall of the groove (15) and is inserted into the movable writing board (13); the rotating plate (4) is rotatably connected to the upper surface of the bottom plate (1) via a rotating shaft (18); The side plate (5) is provided with a sliding groove (19) for sliding connection of the movable block (6); The movable plate (7) is rotatably connected to the end of the movable block (6) via a rotating shaft (20); The locking member (39) is a locking bolt, and the movable plate (7) is locked in the slide groove (19) by the locking bolt. The slide groove (19) and the movable block (6) are both provided with bolt holes (22) for threaded connection with the locking bolt. A bearing plate (23) is fixedly connected to the side plate (5), a bearing groove (24) matching with the support rod (2) is opened downward on the upper surface of the bearing plate (23), and a limiting bolt (25) is threadedly connected above the bearing groove (24); The connecting block (8) is connected to the upper end of the support rod (2) via a connecting bolt (26); the rotating block (9) is rotatably connected to the connecting block (8) via a rotating column (27); A limiting groove (28) is provided on the outer wall of the fixed writing board (3), a limiting block (29) is movably connected in the limiting groove (28), a clamping rod (30) is fixedly connected to the limiting block (29), the end of the connecting rod (10) is fixedly connected to a fixed block (21), a plug hole (31) for the clamping rod (30) is provided on the fixed block (21), and a locking mechanism for locking the clamping rod (30) is provided on the fixed block (21); The locking mechanism comprises a threaded rod (32), a circular plate (33) is arranged on one side of the fixing block (21), a locking rod (34) is fixedly connected to the side wall of the circular plate (33), one end of the locking rod (34) passes through the fixing block (21) and is inserted into the clamping rod (30), the threaded rod (32) is fixedly connected to the circular plate (33), one end of the threaded rod (32) passes through the fixing block (21) and is threadedly connected to a nut (35); The movable writing board (13) is rotatably connected to the side wall of the sliding plate (12) via a hinge (36); The connecting rods (10) are provided in two pieces, and the middle parts of the two connecting rods (10) are connected to the rotating block (9) via a clamping bolt (14); The push plate (16) and the groove (15) are fixedly connected via a spring (37); a slot (40) for inserting the rod (17) is provided at the end of the mobile writing board (13); and the mobile writing board (13) is connected to the receiving groove (11) via a second clamping bolt (38).

2. A method for using a display device for English teaching, characterized in that: The specific steps of this method include: The locking bolt is manually rotated. When one end of the locking bolt is disengaged from the slide groove (19) and the movable block (6), the support rod (2) is manually rotated to make the support rod (2) and the bottom plate (1) in a vertical state, so that the position of the support rod (2) can be adjusted. Then, the locking bolt is manually rotated to lock the movable plate (7) on the side plate (5) through the locking bolt, thereby locking the support rod (2); When the fixed writing board (3) is placed between the fixed blocks (21), the limiting block (29) is manually pushed, and one end of the clamping rod (30) is inserted into the insertion hole (31) of the fixed block (21), and then one end of the locking rod (34) passes through the fixed block (21) and is inserted on the clamping rod (30), and at the same time, one end of the threaded rod (32) passes through the fixed block (21) and extends to the other side thereof, and the nut (35) is manually rotated so that the nut (35) is threadedly connected to the nut (35), thereby realizing that the locking rod (34) is locked on the clamping rod (30), that is, realizing that the fixed writing board (3) is installed between the fixed blocks (21); The movable writing board (13) is manually pulled, and the push plate (16) is manually pushed, and the insertion rod (17) is moved by the push plate (16), and then the movable writing board (13) is located outside the fixed writing board (3), and the movable writing board (13) is rotated so that one end of the movable writing board (13) is attached to the rotating block (9), and the push plate (16) is manually pushed, and the push plate (16) is moved due to the action of the spring (37), and the insertion rod (17) is driven by the push plate (16). When one end of the insertion rod (17) is inserted into the mobile writing board (13), the mobile writing board (13) is locked on the rotating block (9), so that English teaching can be carried out by writing on the fixed writing board (3). When the fixed writing board (3) is fully written, the rotating block (9) can be rotated to write on another fixed writing board (3) to carry out English teaching. At the same time, the rotating board (4) can be rotated to write on the mobile writing board (13) to carry out English teaching.

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