Teaching aid for helping students with visual impairment to learn

Abstract

The utility model belongs to the technical field of teaching aids, and particularly relates to a teaching aid for helping students with visual impairment to learn, which comprises a shell, 225 sliding holes are arranged in the shell, bumps are slidably sleeved in the sliding holes, a same spring is fixedly connected between the bumps and the inner wall of the bottom of the shell, and the same spring is arranged in the shell. An adjusting mechanism is arranged between the 225 protruding blocks and the shell. According to the utility model, the structural design is reasonable, according to different geometric figures, the controller starts the lower solenoid valves at the corresponding positions so as not to fix the convex blocks at the corresponding coordinates, and the convex blocks at the corresponding coordinates can be ejected out under the elastic force of the spring so as to form any geometric figure, so that students with visual impairment can touch and perceive conveniently, and the teaching efficiency is improved. And during resetting, the convex block is unlocked firstly, then the cover plate is deflected downwards to be closed, and when the cover plate is pressed downwards, the convex block is pressed in to be reset, so that the effect of quick resetting is achieved.

Description

Technical Field

[0001] This utility model relates to the field of teaching aids technology, and in particular to a teaching aid to help visually impaired students learn. Background Technology

[0002] The tactile graphics board is printed with various shapes, patterns and symbols. Students can perceive and recognize these graphics by touching them, which helps them learn about geometric shapes, mathematical symbols, maps and other knowledge, and enhances their tactile perception and cognitive abilities.

[0003] A search revealed a teaching aid for visually impaired students to learn geometry, with Chinese patent number CN214955562U. The aid includes a main support frame, on which a first interlayer and a second interlayer are provided, and push plates are inserted into both the first and second interlayers. The main support frame has multiple deep holes evenly distributed, and columns are inserted into the deep holes. Multiple square slots are evenly distributed on the push plates, and pins are fixedly installed on one side of each square slot.

[0004] However, the teaching aids mentioned above for helping visually impaired students learn still have shortcomings. Using the push plates on both sides to make the pillars at the intersection protrude and construct simple geometric shapes in this way makes operation cumbersome and inconvenient. This is especially true when constructing more complex geometric shapes, which makes operation even more difficult and reduces the effectiveness of helping visually impaired students learn. Furthermore, repositioning requires personnel to move all the protrusions and push plates downwards, making the repositioning of the pillars quite troublesome. Therefore, we propose a teaching aid to help visually impaired students learn in order to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings mentioned above by providing a teaching aid to help visually impaired students learn.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A teaching aid for visually impaired students includes a housing with 225 sliding holes inside. A protrusion is slidably fitted inside each sliding hole. The protrusion is fixedly connected to the same spring between itself and the bottom inner wall of the housing. An adjustment mechanism is provided between the 225 protrusions and the housing. Two grooves are provided on the top of the housing. A cover plate is rotatably connected to one side of the housing. A closing and reset mechanism is provided between the cover plate and the two grooves.

[0008] As a preferred embodiment of this utility model, the adjusting mechanism includes two sets of air pumps, a main pipe, and 15 cylinders. One set of air pumps, the main pipe, and the 15 cylinders are fixedly connected to the front side of the housing, and the other set of air pumps, the main pipe, and the 15 cylinders are fixedly connected to one side of the housing. The bottom of the air pumps and the main pipe are fixedly connected to the same air inlet pipe. The top of the main pipe is fixedly connected to 15 branch pipes. The top of each branch pipe is connected to the bottom of the cylinder, and an exhaust pipe is fixedly connected to each branch pipe.

[0009] As a preferred embodiment of this invention, a lower solenoid valve is provided on the branch pipe, and an upper solenoid valve is provided on the exhaust pipe.

[0010] As a preferred embodiment of this utility model, a connecting plate is fixedly connected to the output shaft of the cylinder, and a movable plate is fixedly connected to the connecting plate. The top of the movable plate has 15 rectangular openings, and the protrusions are slidably fitted into the corresponding rectangular openings. A locking block is fixedly connected to the inner wall of one side of the rectangular opening, and two locking grooves are opened on one side of the protrusions. The locking block is movably engaged in the corresponding locking grooves.

[0011] As a preferred embodiment of this utility model, a guide opening is provided on one side and the front side of the housing, and the movable plate is slidably sleeved in the corresponding guide opening.

[0012] As a preferred embodiment of this utility model, a controller is fixedly connected to the front side of the housing, and the air pump, the lower solenoid valve, and the upper solenoid valve are all electrically connected to the controller.

[0013] In a preferred embodiment of this utility model, the closing reset mechanism includes an electric push rod rotatably connected to the inner walls of the front and rear sides of the groove. A connecting rod is fixedly connected to the output shaft of the electric push rod. A rotating shaft is rotatably mounted through the connecting rod. Rotating plates are fixedly connected to the front and rear ends of the rotating shaft. All four rotating plates are fixedly connected to the bottom of the cover plate. A rotating shaft is rotatably connected to the inner walls of the front and rear sides of the groove. The electric push rod is fixedly sleeved on the outside of the rotating shaft.

[0014] As a preferred embodiment of this invention, a hinge is provided on one side of the housing, and the cover plate is rotatably connected to one side of the housing via the hinge.

[0015] In this invention, a teaching aid for visually impaired students involves a controller activating two electric push rods. These push rods extend two connecting rods, causing them to deflect. The connecting rods then lift two rotating plates and a cover plate without obstructing the protrusions. Depending on the geometric shape, protrusions at corresponding coordinate positions are extended to form arbitrary geometric shapes, facilitating tactile perception for visually impaired students. At this point, the corresponding lower solenoid valves and two air pumps are activated. The air pumps draw air into the main pipe before it enters the corresponding... Inside the branch pipe and the cylinder, the cylinder at the corresponding position drives the connecting plate and the moving plate to move outward. The moving plate drives the locking block to move outward and disengage from the corresponding slot, thus eliminating the need for double locking of the protrusion at the intersection of the two moving plates. At this time, under the elastic force of the compressed spring, the protrusion is pushed out of the sliding hole, making the adjustment operation more convenient and efficient. The two air pumps and the lower solenoid valve are closed, and the upper solenoid valve at the corresponding position is opened, so that the air in the cylinder is discharged and the connecting plate and the moving plate move inward to reset, so that the locking block engages in the corresponding slot to lock the protrusion.

[0016] In this utility model, a teaching aid for visually impaired students is described. When not in use, following the steps above, the two movable plates move outward without locking the protrusion. The two electric push rods are activated in both directions. The two electric push rods first drive the connecting rod, rotating plate, and cover plate to move downward to close the top of the housing. At this time, under the pressure of the cover plate, the protrusion can be pressed into the sliding hole, thereby achieving a quick reset effect. The upper solenoid valve is opened, causing the cylinder to drive the movable plate and the locking block to move inward and engage in the corresponding slot, thereby locking the protrusion.

[0017] This utility model has a reasonable structural design. According to different geometric shapes, the lower solenoid valve at the corresponding position is activated by the controller so that the protrusion at the corresponding coordinate is not fixed. Under the elastic force of the spring, the protrusion at the corresponding coordinate can be pushed out to form any geometric shape, which facilitates tactile perception for visually impaired students and makes the adjustment operation more convenient and efficient. When resetting, the protrusion is first unlocked, and then the cover plate is deflected downward to close. When the cover plate is pressed down, the protrusion is pressed into the reset position, thereby achieving a rapid reset effect. Attached Figure Description

[0018] Figure 1 A first-view perspective perspective view of a teaching aid for visually impaired students to learn, as proposed in this utility model;

[0019] Figure 2 A second-view perspective stereoscopic view of a teaching aid proposed in this utility model to help visually impaired students learn;

[0020] Figure 3 for Figure 1 A schematic diagram of the structure of part A;

[0021] Figure 4 for Figure 2 A structural diagram of section B;

[0022] Figure 5 This is a partial perspective view of the protrusions, movable plate, and card block of a teaching aid for visually impaired students to learn, as proposed in this utility model.

[0023] In the diagram: 1. Housing; 2. Hinge; 3. Controller; 4. Adjustment mechanism; 5. Closure and reset mechanism; 6. Sliding hole; 7. Protrusion; 8. Cover plate; 401. Air pump; 402. Main pipe; 403. Inlet pipe; 404. Branch pipe; 405. Lower solenoid valve; 406. Exhaust pipe; 407. Upper solenoid valve; 408. Guide port; 409. Moving plate; 410. Connecting plate; 411. Cylinder; 412. Rectangular opening; 413. Locking block; 414. Locking groove; 415. Spring; 51. Groove; 52. Rotating shaft; 53. Electric push rod; 54. Rotating plate; 55. Rotating shaft; 56. Connecting rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-5 A teaching aid for visually impaired students includes a housing 1, with 225 sliding holes 6 inside the housing 1. Protrusions 7 are slidably fitted inside the sliding holes 6. A spring 415 is fixedly connected between the protrusions 7 and the bottom inner wall of the housing 1. An adjustment mechanism 4 is provided between the 225 protrusions 7 and the housing 1. Two grooves 51 are provided on the top of the housing 1. A cover plate 8 is rotatably connected to one side of the housing 1. A closing and reset mechanism 5 is provided between the cover plate 8 and the two grooves 51.

[0026] Furthermore, refer to Figure 1-3 and Figure 5As shown, the adjustment mechanism 4 includes two sets of air pumps 401, a main pipe 402, and 15 cylinders 411. One set of air pumps 401, main pipe 402, and 15 cylinders 411 is fixedly connected to the front side of the housing 1, and the other set of air pumps 401, main pipe 402, and 15 cylinders 411 is fixedly connected to one side of the housing 1. The bottom of the air pumps 401 and the main pipe 402 are fixedly connected to the same air inlet pipe 403. The top of the main pipe 402 is fixedly connected to 15 branch pipes 404. The top of the branch pipes 404 is connected to the bottom of the cylinders 411. An exhaust pipe 406 is fixedly connected to the cylinder 411. A lower solenoid valve 405 is installed on the branch pipe 404, and an upper solenoid valve 407 is installed on the exhaust pipe 406. A connecting plate 410 is fixedly connected to the output shaft of the cylinder 411. A movable plate 409 is fixedly connected to the connecting plate 410. The top of the movable plate 409 has 15 rectangular openings 412. The protrusion 7 is slidably fitted into the corresponding rectangular opening 412. A locking block 413 is fixedly connected to the inner wall of one side of the rectangular opening 412. Two locking grooves 414 are opened on one side of the protrusion 7. The locking block 413 is movably locked into the corresponding locking groove 414.

[0027] The above scheme is adopted: the controller 3 activates two electric push rods 53, which in turn extend two connecting rods 56. Simultaneously, the electric push rods 53 deflect, causing the two connecting rods 56 to lift the two rotating plates 54 and the cover plate 8 without obstructing the protrusion 7. Then, depending on the geometric shape, the protrusion 7 at the corresponding coordinate position needs to be extended to form arbitrary geometric shapes, thus facilitating tactile perception for visually impaired students. At this time, the lower solenoid valve 405 and two air pumps 401 at the corresponding positions need to be opened. The two air pumps 401 can draw air into the main pipe 402, which then enters the corresponding branch pipe 404 and cylinder 411. The cylinder 411 at the corresponding position... 11 drives the connecting plate 410 and the moving plate 409 to move outward. The moving plate 409 drives the locking block 413 to move outward and disengage from the corresponding slot 414. Thus, the protrusion 7 at the intersection of the two moving plates 409 is not double-locked. At this time, under the elastic force of the compressed spring 415, the protrusion 7 is pushed out of the sliding hole 6, making the adjustment operation more convenient and efficient. The two air pumps 401 and the lower solenoid valve 405 are closed, and the upper solenoid valve 407 at the corresponding position is opened, so that the air in the cylinder 411 is discharged, and the connecting plate 410 and the moving plate 409 move inward to reset, so that the locking block 413 is locked in the corresponding slot 414 to lock the protrusion 7.

[0028] Furthermore, 15 guide openings 408 are provided on one side and the front side of the housing 1. The moving plate 409 is slidably sleeved in the corresponding guide opening 408, which facilitates the guidance of the moving plate 409 and makes its movement more stable and smooth.

[0029] Furthermore, a controller 3 is fixedly connected to the front side of the housing 1. The air pump 401, the lower solenoid valve 405 and the upper solenoid valve 407 are all electrically connected to the controller 3, which facilitates the control of the air pump 401, the lower solenoid valve 405 and the upper solenoid valve 407.

[0030] Furthermore, refer to Figure 1 , Figure 2 and Figure 4 As shown, the closed reset mechanism 5 includes an electric push rod 53 rotatably connected to the inner walls of the front and rear sides of the groove 51. A connecting rod 56 is fixedly connected to the output shaft of the electric push rod 53. A rotating shaft 55 is rotatably mounted through the connecting rod 56. Rotating plates 54 are fixedly connected to the front and rear ends of the rotating shaft 55. The four rotating plates 54 are fixedly connected to the bottom of the cover plate 8. A rotating shaft 52 is rotatably connected to the inner walls of the front and rear sides of the groove 51. The electric push rod 53 is fixedly sleeved on the outside of the rotating shaft 52.

[0031] The above scheme is adopted as follows: When not in use, the movable plate 409 moves outward without locking the corresponding protrusion 7. The two electric push rods 53 are activated in both directions. The two electric push rods 53 first drive the connecting rod 56, the rotating plate 54 and the cover plate 8 to move downward to close the top of the housing 1. At this time, under the pressure of the cover plate 8, the protrusion 7 can be pressed into the sliding hole 6, thereby achieving a quick reset effect. The upper solenoid valve 407 is opened, so that the cylinder 411 drives the movable plate 409 and the locking block 413 to move inward and lock into the corresponding slot 414, thereby locking the protrusion 7.

[0032] Furthermore, a hinge 2 is provided on one side of the housing 1, and the cover plate 8 is rotatably connected to one side of the housing 1 through the hinge 2, which facilitates rotatably connecting the cover plate 8 to the top of the housing 1.

[0033] In this utility model, referring to the working principle of a teaching aid for visually impaired students to learn geometry (Chinese Patent No. CN214955562U), the controller 3 activates two electric push rods 53, which in turn extend two connecting rods 56. Simultaneously, the electric push rods 53 deflect, causing the two connecting rods 56 to lift the two rotating plates 54 and the cover plate 8 without obstructing the protrusions 7. Then, depending on the geometric shape, the protrusions 7 at the corresponding coordinate positions need to be extended to form arbitrary geometric shapes, thus facilitating tactile perception for visually impaired students. At this time, the lower solenoid valve 405 and two air pumps 401 at the corresponding positions need to be opened. The two air pumps 401 draw air into the main pipe 402, which then enters the corresponding branch. Inside pipe 404 and cylinder 411, the cylinder 411 at the corresponding position drives the connecting plate 410 and the moving plate 409 to move outward. The moving plate 409 drives the locking block 413 to move outward and disengage from the corresponding slot 414. Thus, the protrusion 7 at the intersection of the two moving plates 409 can be double-locked. At this time, under the elastic force of the compressed spring 415, the protrusion 7 is pushed out of the sliding hole 6, making the adjustment operation more convenient and efficient. The two air pumps 401 and the lower solenoid valve 405 are closed, and the upper solenoid valve 407 at the corresponding position is opened, so that the air in the cylinder 411 is discharged, and the connecting plate 410 and the moving plate 409 move inward to reset, so that the locking block 413 is locked in the corresponding slot 414 to lock the protrusion 7.

[0034] When not in use, follow the steps described above to move the two movable plates 409 outward without locking the protrusion 7. Start the two electric push rods 53 in both directions. The two electric push rods 53 first drive the connecting rod 56, the rotating plate 54 and the cover plate 8 to move downward to close the top of the housing 1. At this time, under the pressure of the cover plate 8, the protrusion 7 can be pressed into the sliding hole 6 to achieve a quick reset effect. Open the upper solenoid valve 407 so that the cylinder 411 drives the movable plate 409 and the locking block 413 to move inward and lock into the corresponding slot 414, thereby locking the protrusion 7.

Claims

1. An educational aid for assisting visually impaired students in their learning, characterized in that, Including the shell (1), the shell (1) is opened in 225 sliding holes (6), the sliding hole (6) is slidably sleeved with a protruding block (7), the protruding block (7) is fixedly connected with the same spring (415) between the bottom inner wall of the shell (1), 225 The protruding block (7) is provided with an adjusting mechanism (4) between the shell (1), the top of the shell (1) is provided with two grooves (51), the side of the shell (1) is rotatably connected with a cover plate (8), the cover plate (8) is provided with a closing reset mechanism (5) between the two grooves (51). The adjusting mechanism (4) includes two groups of air pumps (401), a main pipeline (402) and 15 air cylinders (411), one group of air pump (401), main pipeline (402) and 15 air cylinder (411) are fixedly connected on the front side of the shell (1), another group of air pump (401), main pipeline (402) and 15 air cylinder (411) are fixedly connected on the side of the shell (1), the air pump (401) and the bottom of the main pipeline (402) are fixedly communicated with the same air inlet pipe (403), the top of the main pipeline (402) is fixedly communicated with 15 branch pipes (404), the top end of the branch pipe (404) is communicated with the bottom of the air cylinder (411), the branch pipe (404) is fixedly communicated with the exhaust pipe (406).

2. The teaching aid of claim 1, wherein, The branch pipe (404) is provided with a lower electromagnetic valve (405), and the exhaust pipe (406) is provided with an upper electromagnetic valve (407).

3. The teaching aid of claim 1, wherein, The output shaft of the air cylinder (411) is fixedly connected with a connecting plate (410), the connecting plate (410) is fixedly connected with a moving plate (409), the top of the moving plate (409) is provided with 15 rectangular openings (412), the protruding block (7) is slidably sleeved in the corresponding rectangular opening (412), the side inner wall of the rectangular opening (412) is fixedly connected with a clamping block (413), the side of the protruding block (7) is provided with two clamping grooves (414), and the clamping block (413) is movably clamped in the corresponding clamping groove (414).

4. The teaching aid of claim 3, wherein, The side and the front side of the shell (1) are provided with 15 guide holes (408), and the moving plate (409) is slidably sleeved in the corresponding guide hole (408).

5. The teaching aid of claim 2, wherein, The front side of the shell (1) is fixedly connected with a controller (3), and the air pump (401), the lower electromagnetic valve (405) and the upper electromagnetic valve (407) are electrically connected with the controller (3).

6. The teaching aid of claim 1, wherein, The closing reset mechanism (5) comprises an electric push rod (53) rotationally connected to the front and rear side inner walls of the groove (51), a connecting rod (56) fixedly connected to the output shaft of the electric push rod (53), a rotating shaft (55) rotationally arranged on the connecting rod (56), rotating plates (54) fixedly connected to the front and rear ends of the rotating shaft (55), four rotating plates (54) fixedly connected to the bottom of the cover plate (8), rotating shafts (52) rotationally connected to the front and rear side inner walls of the groove (51), and the electric push rod (53) fixedly sleeved on the outside of the rotating shaft (52).

7. The teaching aid of claim 1, wherein, One side of the shell (1) is provided with a hinge (2), and the cover plate (8) is rotationally connected to one side of the shell (1) through the hinge (2).

Images