Mathematical multifunctional teaching aid for graph combination

Abstract

The utility model discloses a multifunctional mathematical teaching aid for graph combination, and relates to the technical field of teaching aids. The teaching aid comprises a base, the front end of the base is fixedly connected with a storage rack, the top of the base is fixedly connected with a teaching aid body, the front end of the teaching aid body is provided with a magnetic screen, the front end of the magnetic screen is provided with a graphic block, and the teaching aid body is internally provided with a writing board mechanism. The writing board mechanism comprises a writing board, an elastic spring, a groove and a hydraulic bin, the writing board mechanism is arranged, so that when the writing board is pulled out, a clamping block can be automatically clamped into a clamping groove, the writing board is more stable and cannot shake left and right during use, and when the writing board needs to be withdrawn, only a pull rod needs to be pulled down, and the writing board is convenient to use. At the moment, through cooperation of the air pressure bin, the connecting rod and other assemblies, the clamping block leaves the clamping groove, the elastic spring rebounds to drive the writing board to be stored in the teaching aid body, and use is very convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of teaching tools, in particular to a multifunctional mathematical teaching tool for graphic combination. Background Art

[0002] Teaching aids refer to models, real objects, specimens, instruments, charts, slides, etc. used to explain something, including teaching equipment, teaching instruments, training equipment, educational equipment, experimental equipment, teaching specimens, teaching models, etc., which are often used in mathematics teaching.

[0003] The utility model with publication number CN208985471U discloses a mathematical teaching aid for graphic combination, comprising a teaching aid mainboard, an outer side wall of the teaching aid mainboard is fixedly connected with a connecting block, a side of the outer side wall of the connecting block away from the teaching aid mainboard is fixedly connected with a reinforcing block, a square groove is arranged inside the teaching aid mainboard, a groove is provided on the upper surface of the square groove, a writing board is slidably connected inside the square groove, a convex strip is fixedly connected on the upper surface of the writing board, a first handle is fixedly connected to the side of the outer side wall of the writing board away from the teaching aid mainboard, a graphic combination board is fixedly connected to the side of the outer side wall of the teaching aid mainboard away from the connecting block, and a plurality of jacks are evenly provided on the side of the outer side wall of the teaching aid mainboard close to the graphic combination board. In the above application document, when writing calculation is needed, the writing board in the square groove is pulled out by the first handle, and the convex strip slides inside the groove, so that writing can be carried out. After the writing board is pulled out, the writing board is not fixed, and it is easy to shake left and right when writing, which is very inconvenient to use. Utility Model Content

[0004] The utility model aims to provide a multifunctional mathematics teaching aid for graphic combination, which solves the existing problems.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a multifunctional mathematics teaching aid for graphic combination, comprising a base, a storage rack fixedly connected to the front end of the base, a teaching aid main body fixedly connected to the top of the base, a magnetic screen arranged at the front end of the teaching aid main body, a graphic block arranged at the front end of the magnetic screen, a writing board mechanism arranged inside the teaching aid main body, the writing board mechanism comprising a writing board, an elastic spring, a groove and a hydraulic warehouse, the writing board is slidably connected to the inside of the teaching aid main body through the elastic spring, a card slot is provided at the bottom of the writing board, the groove is provided at the inner bottom of the teaching aid main body, a telescopic spring is fixedly connected to the inner bottom of the groove, a card block is slidably connected to the inside of the groove through the telescopic spring, the hydraulic warehouse is fixedly connected to the inside of the teaching aid main body, an internal piston at one end of the hydraulic warehouse is slidably connected to a connecting rod, an internal piston at the other end of the hydraulic warehouse is slidably connected to a pull rod, and a deceleration mechanism is provided on the side of the writing board.

[0007] Furthermore, the elastic spring is in a stretched state in the initial state, and two-thirds of the card block is located in the card slot in the initial state. When the card block is stuck in the card slot, the elastic spring cannot rebound and drive the writing board to retract into the interior of the teaching aid body.

[0008] Furthermore, the depth of the groove is greater than the length of the block, and the block can be completely retracted into the groove.

[0009] Furthermore, the material of the graphic block is ferromagnetic stainless steel. The graphic block made of stainless steel is not easy to rust and be damaged, and can be adsorbed on the magnetic screen.

[0010] Furthermore, the deceleration mechanism includes a connecting frame, which is fixedly connected to the side of the writing board, and a roller is rotatably connected to the inner side of the connecting frame. A groove is provided on the surface of the roller, and a tension spring is fixedly connected to the inner wall of the groove. A resistance block is slidably connected to the inside of the groove through the tension spring.

[0011] Furthermore, the surface of the roller fits with the inner wall of the teaching aid body, and the resistance block is completely in the groove in the initial state. When the roller moves with the writing board, it rotates due to friction with the inner wall of the teaching aid body.

[0012] Furthermore, the resistance block is made of rubber, and one end of the resistance block away from the tension spring is uneven. When the uneven end of the resistance block made of rubber contacts the inner wall of the teaching aid body, greater resistance will be generated.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model is provided with a writing board mechanism, so that when the writing board is pulled out, the card block will automatically be stuck in the card slot, making the writing board more stable when in use and will not shake left and right. When the writing board needs to be retracted, it is only necessary to pull down the pull rod. At this time, the card block will leave the card slot through the cooperation of the air pressure chamber, the connecting rod and other components, and the elastic spring will rebound to drive the writing board into the main body of the teaching aid, which is very convenient to use.

[0015] 2. The utility model is provided with a deceleration mechanism, so that the speed at which the elastic spring rebounds and drives the writing board to be stored in the teaching aid body can be slowed down by the cooperation of the connecting frame, rollers, resistance blocks and other components, thereby preventing the elastic spring from rebounding and driving the writing board to be stored in the teaching aid body at too high a speed to produce vibrations and affect the service life of the entire device.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a three-dimensional cross-sectional view of the overall structure of the utility model;

[0020] Figure 3 It is a three-dimensional schematic diagram of the writing board mechanism structure of the utility model;

[0021] Figure 4 For this utility model Figure 3 A three-dimensional enlarged view of the structure at A in the middle;

[0022] Figure 5 It is a three-dimensional schematic diagram of the deceleration mechanism structure of the utility model;

[0023] Figure 6 It is a three-dimensional cross-sectional view of the deceleration mechanism structure of the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Base; 2. Storage rack; 3. Teaching aid body; 4. Magnetic screen; 5. Graphic block; 7. Writing board mechanism; 71. Writing board; 72. Elastic spring; 73. Card slot; 74. Groove; 75. Telescopic spring; 76. Card block; 77. Hydraulic compartment; 78. Connecting rod; 79. Pull rod; 8. Deceleration mechanism; 81. Connecting frame; 82. Roller; 83. Trough; 84. Tension spring; 85. Resistance block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-6 The utility model is a multifunctional mathematics teaching aid for graphic combination, comprising a base 1, a storage rack 2 is fixedly connected to the front end of the base 1, a teaching aid body 3 is fixedly connected to the top of the base 1, a magnetic screen 4 is arranged at the front end of the teaching aid body 3, a graphic block 5 is arranged at the front end of the magnetic screen 4, a writing board mechanism 7 is arranged inside the teaching aid body 3, the writing board mechanism 7 comprises a writing board 71, an elastic spring 72, a groove 74 and a hydraulic chamber 77, the writing board 71 is slidably connected to the inside of the teaching aid body 3 through the elastic spring 72, a card slot 73 is provided at the bottom of the writing board 71, the groove 74 is provided at the inner bottom of the teaching aid body 3, a telescopic spring 75 is fixedly connected to the inner bottom of the groove 74, a card block 76 is slidably connected to the inside of the groove 74 through the telescopic spring 75, a hydraulic chamber 77 is fixedly connected to the inside of the teaching aid body 3, an internal piston at one end of the hydraulic chamber 77 is slidably connected to a connecting rod 78, and an internal piston at the other end of the hydraulic chamber 77 is slidably connected to a pull rod 79, and a deceleration mechanism 8 is arranged on the side of the writing board 71.

[0028] The elastic spring 72 is in a stretched state in the initial state, and two-thirds of the block 76 is located in the slot 73 in the initial state. When the block 76 is stuck in the slot 73, the elastic spring 72 cannot rebound and drive the writing board 71 to retract into the teaching aid body 3.

[0029] The depth of the groove 74 is greater than the length of the block 76 , and the block 76 can be completely retracted into the groove 74 .

[0030] The material of the graphic block 5 is stainless steel with ferromagnetism. The graphic block 5 made of stainless steel is not easy to rust and be damaged, and can be adsorbed on the magnetic screen 4.

[0031] The deceleration mechanism 8 includes a connecting frame 81, which is fixedly connected to the side of the writing board 71. A roller 82 is rotatably connected to the inner side of the connecting frame 81. A groove 83 is provided on the surface of the roller 82. A tension spring 84 is fixedly connected to the inner wall of the groove 83. A resistance block 85 is slidably connected to the interior of the groove 83 through the tension spring 84.

[0032] The surface of the roller 82 is in contact with the inner wall of the teaching aid body 3 , and the resistance block 85 is completely in the groove 83 in the initial state. When the roller 82 moves with the writing board 71 , it rotates due to friction with the inner wall of the teaching aid body 3 .

[0033] The resistance block 85 is made of rubber, and one end of the resistance block 85 away from the tension spring 84 is uneven. When the uneven end of the resistance block 85 made of rubber contacts the inner wall of the teaching aid body 3, a large resistance is generated.

[0034] A specific application of this embodiment is: the graphic block 5 is adsorbed on the magnetic screen 4 for display teaching, other teaching supplies can be placed on the shelf 2, and writing can be done on the writing board 71. When the writing board 71 needs to be retracted to save space, the pull rod 79 is pulled down, and the pull rod 79 moves downward through the hydraulic pressure in the hydraulic compartment 77 to drive the connecting rod 78 to move downward. The connecting rod 78 moves downward to drive the card block 76 to move downward and leave the card slot 73. The telescopic spring 75 is gradually tightened. After the card block 76 leaves the card slot 73, the elastic spring 72 will rebound and drive the writing board 71 to move to the right and be collected into the teaching aid body 3. The card block 76 is restricted by the bottom of the writing board 71 and remains in the groove 74. When the writing board 71 needs to be used again, the writing board 71 is pulled out to the left. When the groove 74 fits with the card slot 73, the telescopic spring 75 rebounds and drives the card block 76 to be locked. The writing board 71 is inserted into the card slot 73, making it more stable when in use and will not shake left and right. In the process of the elastic spring 72 rebounding and driving the writing board 71 to move to the right and be stored in the teaching aid main body 3, the connecting frame 81 and the roller 82 will be driven to move. When the roller 82 follows the movement of the writing board 71, it will rotate due to the friction with the inner wall of the teaching aid main body 3. At this time, the moving speed of the writing board 71 is faster, which makes the roller 82 rotate faster. The centrifugal force generated by the rapid rotation of the roller 82 will throw out the resistance block 85. At this time, the uneven end of the resistance block 85 will generate greater resistance when it contacts the inner wall of the teaching aid main body 3, thereby slowing down the speed when the elastic spring 72 rebounds and drives the writing board 71 to be stored in the teaching aid main body 3, preventing the elastic spring 72 from rebounding and driving the writing board 71 to be stored in the teaching aid main body 3. The speed is too fast and vibrations will be generated, affecting the service life of the entire device.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A multifunctional mathematical teaching aid for graphic combination, comprising a base (1), characterized in that: The front end of the base (1) is fixedly connected to a storage rack (2), the top of the base (1) is fixedly connected to a teaching aid body (3), the front end of the teaching aid body (3) is provided with a magnetic screen (4), the front end of the magnetic screen (4) is provided with a graphic block (5), and a writing board mechanism (7) is provided inside the teaching aid body (3); The writing board mechanism (7) comprises a writing board (71), an elastic spring (72), a groove (74) and a hydraulic chamber (77); the writing board (71) is slidably connected to the inside of the teaching aid body (3) through the elastic spring (72); a card slot (73) is provided at the bottom of the writing board (71); the groove (74) is provided at the bottom of the teaching aid body (3); a telescopic spring (75) is fixedly connected to the bottom of the groove (74); a card block (76) is slidably connected to the inside of the groove (74) through the telescopic spring (75); the hydraulic chamber (77) is fixedly connected to the inside of the teaching aid body (3); a connecting rod (78) is slidably connected to the internal piston at one end of the hydraulic chamber (77); a pull rod (79) is slidably connected to the internal piston at the other end of the hydraulic chamber (77); and a deceleration mechanism (8) is provided on the side of the writing board (71).

2. A multifunctional mathematical teaching aid for graphic combination according to claim 1, characterized in that: The elastic spring (72) is in a stretched state in the initial state, and two thirds of the clamping block (76) are located in the clamping groove (73) in the initial state.

3. A multifunctional mathematical teaching aid for graphic combination according to claim 2, characterized in that: The depth of the groove (74) is greater than the length of the block (76).

4. A multifunctional mathematical teaching aid for graphic combination according to claim 3, characterized in that: The material of the graphic block (5) is ferromagnetic stainless steel.

5. The multifunctional mathematical teaching aid for graphic combination according to claim 4, characterized in that: The deceleration mechanism (8) comprises a connecting frame (81), the connecting frame (81) is fixedly connected to the side of the writing board (71), a roller (82) is rotatably connected to the inner side of the connecting frame (81), a groove (83) is provided on the surface of the roller (82), a tension spring (84) is fixedly connected to the inner wall of the groove (83), and a resistance block (85) is slidably connected to the interior of the groove (83) via the tension spring (84).

6. A multifunctional mathematical teaching aid for graphic combination according to claim 5, characterized in that: The surface of the roller (82) is in contact with the inner wall of the teaching aid body (3), and the resistance block (85) is completely located in the groove (83) in the initial state.

7. A multifunctional mathematical teaching aid for graphic combination according to claim 6, characterized in that: The resistance block (85) is made of rubber, and one end of the resistance block (85) away from the tension spring (84) is uneven.

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