Three-view teaching aid

Abstract

The utility model relates to the technical field of teaching aids, and discloses a three-view teaching aid, which comprises a three-coordinate projection frame and an exhibit support, the three-coordinate projection frame comprises three projection plates, every two of the three projection plates are vertically connected to form a right-angle three-coordinate, and the exhibit support is detachably connected with a projection surface on the inner side of the projection plate; a magnetic attraction assembly is installed in the projection plate, and the three-coordinate projection frame is attracted to the teaching magnetic plate through the magnetic attraction assembly. According to the utility model, the three projection plates are mutually vertical in pairs to form right-angle three coordinates so as to facilitate subsequent three-coordinate projection of an exhibit, and the protrusions on the exhibit bracket are clamped with the positioning holes, so that the exhibit bracket can be quickly mounted on the projection plates, and meanwhile, the exhibit bracket is also convenient to disassemble; the position of the exhibit support can be conveniently changed on the three projection plates, the position of the entity exhibit can be conveniently changed, the overall structure is simple, operation is convenient, and convenience is brought to actual teaching.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching aids, in particular to a three-view teaching aid. Background Art

[0002] In the process of teachers teaching the three views of objects, since the object is a three-dimensional object, it is difficult for students to intuitively understand how the three views of an object are formed. Therefore, teachers generally use projection teaching aids to assist in teaching the three views.

[0003] Most of the current three-view auxiliary teaching aids are of simple structural design. When displaying different entities or changing the positions of entities, the operation is relatively complicated, which brings inconvenience to actual teaching. Utility Model Content

[0004] In order to solve the technical problems existing in the background technology, the utility model provides a three-view teaching aid.

[0005] The utility model provides a three-view teaching aid, comprising a three-coordinate projection frame and an exhibit support, wherein the three-coordinate projection frame comprises three projection boards, and the three projection boards are vertically connected to each other in pairs to form a right-angle three-coordinate, and the exhibit support is detachably connected to the projection surface inside the projection board;

[0006] A magnetic suction component is installed inside the projection board, and the three-coordinate projection frame is adsorbed on the teaching magnetic board through the magnetic suction component.

[0007] As a further optimized solution of the utility model, a positioning hole is opened on the projection surface of the projection board, and a protrusion matching and corresponding to the positioning hole is provided on the exhibit support, and the exhibit support is snap-fitted with the positioning hole through the protrusion.

[0008] As a further optimized solution of the utility model, the exhibit bracket includes a base plate, a rotating seat, a bearing plate, and a leg. The rotating seat is rotatably installed on one side of the base plate, the bearing plate is installed on the rotating seat, and the leg is installed on the other side of the base plate. The leg protrudes toward the side away from the rotating seat and is adapted to the positioning hole.

[0009] As a further optimized solution of the utility model, the bottom plate is X-shaped, and legs are installed at the four ends of the X. There are four positioning holes arranged in a rectangular array, and the four positioning holes correspond one to one with the four legs.

[0010] As a further optimized solution of the utility model, the end of the rotating seat away from the base plate is concave-shaped, and the opening of the concave shape faces the side away from the base plate. A connecting rod is rotatably connected to the concave groove through a rotating shaft, and the other end of the connecting rod extends to the outside of the groove and is fixedly connected to the supporting plate.

[0011] As a further optimized solution of the utility model, a limiting hole is opened on the side of the projection board away from the projection surface, the limiting hole and the positioning hole are arranged opposite to each other, and the magnetic suction component is slidably arranged in the inner cavity of the projection board. The magnetic suction component is moved and engaged with the limiting hole, so that the magnetic suction component is fitted with the teaching magnetic board.

[0012] As a further optimized solution of the utility model, after the magnetic attraction component is engaged with the limiting hole, the magnetic attraction component is located between the positioning hole and the limiting hole, and the protrusion on the exhibit bracket is engaged with the positioning hole and magnetically connected with the magnetic attraction component.

[0013] As a further optimized solution of the utility model, the magnetic attraction assembly includes a sliding rod and a magnetic block. The sliding rod is slidably mounted on the free side of the projection board, and the magnetic block is slidably arranged inside the projection board. One end of the sliding rod located inside the projection board is fixedly connected to the magnetic block, and the magnetic block is driven to move by pulling the sliding rod.

[0014] As a further optimized solution of the utility model, an elastic body is installed on one side of the magnetic block close to the positioning hole, and the magnetic block and the elastic body are respectively fitted with the inner walls of the projection plate on two opposite sides.

[0015] As a further optimized solution of the utility model, an elastic member is provided inside the projection board, and the sliding rod drives the magnetic block to move by elastically retracting and releasing the magnetic block inside the projection board through the elastic member.

[0016] The three-view teaching aid proposed by the utility model has the following beneficial effects:

[0017] The utility model forms right-angled three-dimensional coordinates by making three projection boards perpendicular to each other in pairs, so as to carry out three-coordinate projection of the exhibits later, and then snap-fit ​​the exhibit stands with the positioning holes through the protrusions on the exhibit stands, so that the exhibit stands can be quickly installed on the projection boards, and the disassembly of the exhibit stands is also convenient, so that the positions of the exhibit stands on the three projection boards can be changed, thereby facilitating the position change of the physical exhibits, and the three-view drawings of the objects to be explained can be displayed intuitively in real time, and the teachers can also draw or explain directly on the teaching magnetic board, so that the actual teaching is more intuitive and the explanation effect is better, the overall structure is simple, the operation is convenient, and the actual teaching is convenient.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the use of the utility model;

[0021] Figure 3This is a schematic diagram of the inner structure of the projection board of the utility model;

[0022] Figure 4 This is a schematic diagram of the outer structure of the projection board of the utility model;

[0023] Figure 5 It is a front cross-sectional schematic diagram of the projection board of the utility model;

[0024] Figure 6 It is a top cross-sectional schematic diagram of the projection board of the utility model in the first state;

[0025] Figure 7 It is a top cross-sectional schematic diagram of the projection plate of the utility model in the second state.

[0026] Description of the drawings: 1. Projection board; 2. Exhibit bracket; 21. Bottom plate; 22. Rotating seat; 23. Load-bearing plate; 24. Leg; 3. Positioning hole; 4. Limiting hole; 5. Sliding rod; 6. Magnetic block; 7. Elastic body; 8. Elastic member; 9. Sliding groove. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] See also Figure 1-Figure 7 A three-view teaching aid includes a three-coordinate projection frame and an exhibit support 2, wherein the three-coordinate projection frame includes three projection boards 1, wherein the three projection boards 1 are vertically connected to each other in pairs to form a right-angle three-coordinate, and the exhibit support 2 is detachably connected to the projection surface inside the projection board 1;

[0033] A magnetic suction component is installed inside the projection board 1, and the three-coordinate projection frame is adsorbed on the teaching magnetic board through the magnetic suction component;

[0034] A positioning hole 3 is provided on the projection surface of the projection board 1, and a protrusion matching and corresponding to the positioning hole 3 is provided on the exhibit support 2, and the exhibit support 2 is clamped with the positioning hole 3 through the protrusion; fasteners such as bolts and magnets can also be used for fixing;

[0035] Specifically, the exhibit support 2 includes a bottom plate 21, a rotating seat 22, a bearing plate 23, and a leg 24. The rotating seat 22 is rotatably mounted on one side of the bottom plate 21, the bearing plate 23 is mounted on the rotating seat 22, and the leg 24 is mounted on the other side of the bottom plate 21. The leg 24 protrudes toward the side away from the rotating seat 22 and is adapted to the positioning hole 3. By means of the snap-fit ​​assembly of the leg 24 and the positioning hole 3, the exhibit support 2 can be quickly mounted on the projection surface of one of the positioning holes 3, and by means of the rotating connection between the rotating seat 22 and the bottom plate 21, the exhibit on the bearing plate 23 can be rotated for display and projection.

[0036] Furthermore, the physical exhibits to be displayed are common teaching models, such as cylinders, cuboids, cones, etc., and the bottom ends of these teaching models are all equipped with connecting seats, which are magnetically connected to the supporting plate 23 so as to stably display the teaching models;

[0037] Further, the bottom plate 21 is X-shaped, and legs 24 are installed at the four ends of the X-shape. The number of positioning holes 3 is four and they are arranged in a rectangular array. The four positioning holes 3 correspond to the four legs 24 one by one. The four legs 24 are respectively connected to the four positioning holes 3 to improve the connection stability between the bottom plate 21 and the projection board 1, thereby improving the installation stability of the exhibit bracket 2.

[0038] Furthermore, one end of the rotating seat 22 away from the bottom plate 21 is concave-shaped, and the opening of the concave-shaped is facing the side away from the bottom plate 21. A connecting rod is rotatably connected in the concave-shaped groove through a rotating shaft, and the other end of the connecting rod extends to the outside of the groove and is fixedly connected to the carrying plate 23. With such a design, the carrying plate 23 can drive the connecting rod to rotate along the rotating shaft, thereby realizing the flipping of the carrying plate 23, so as to adjust the inclination angle of the exhibits on the carrying plate 23, thereby facilitating multi-angle projection teaching;

[0039] Specifically, a limiting hole 4 is provided on one side of the projection board 1 away from the projection surface, the limiting hole 4 is arranged opposite to the positioning hole 3, the magnetic component is slidably arranged in the inner cavity of the projection board 1, and the magnetic component is engaged with the limiting hole 4 by moving the magnetic component so that the magnetic component fits with the teaching magnetic board. When the magnetic component is engaged with the limiting hole 4, the magnetic component is located between the positioning hole 3 and the limiting hole 4, and the protrusion on the exhibit support 2 is engaged with the positioning hole 3 and magnetically connected to the magnetic component, so as to magnetically fix the exhibit support 2 and improve the stability of the exhibit support 2 and the exhibits thereon;

[0040] Furthermore, the magnetic attraction assembly includes a sliding rod 5 and a magnetic block 6. The sliding rod 5 is slidably mounted on the free side of the projection board 1. The magnetic block 6 is slidably arranged inside the projection board 1. One end of the sliding rod 5 located inside the projection board 1 is fixedly connected to the magnetic block 6. The sliding rod 5 is pulled to drive the magnetic block 6 to move so that the magnetic block 6 is engaged with the limiting hole 4.

[0041] Furthermore, an elastic body 7 is installed on one side of the magnetic block 6 close to the positioning hole 3, and the magnetic block 6 and the elastic body 7 are respectively fitted with the inner walls of the opposite sides of the projection board 1. By utilizing the elastic deformation effect of the elastic body 7, when the magnetic block 6 is fitted with the inner wall of the projection board 1, the elastic body 7 is in a compressed state, and at this time, it does not affect the sliding rod 5 to drive the magnetic block 6 to slide inside the projection board 1. When the magnetic block 6 moves to be opposite to the limiting hole 4, the elastic body 7 restores the deformation and pushes the magnetic block 6 into the limiting hole 4, so that the magnetic block 6 is stuck in the limiting hole 4, and the side of the magnetic block 6 away from the elastic body 7 is flush with the outer side surface of the projection board 1. At this time, the projection board 1 can be fitted with the teaching magnetic board, so that the magnetic block 6 is magnetically connected to the teaching magnetic board, so that the teaching aid is adsorbed on the teaching magnetic board as a whole, and it is also convenient for the teaching aid to move on the magnetic board to adjust the specific position;

[0042] It should be noted that the elastic body 7 can be an elastic rubber strip, elastic sponge or other elastic material in the prior art;

[0043] Furthermore, an elastic member 8 is provided inside the projection board 1, and the sliding rod 5 drives the magnetic block 6 to be elastically retracted and released inside the projection board 1 through the elastic member 8, and the elastic member 8 can be a spring, a spring sheet or other elastic combination structure in the prior art;

[0044] Furthermore, there are four magnetic blocks 6, and the four magnetic blocks 6 correspond to the four limiting holes 4 one by one. The four magnetic blocks 6 are divided into two groups, and each group of magnetic blocks 6 corresponds to a sliding rod 5 and an elastic member 8;

[0045] Furthermore, the sliding rod 5 is parallel to the X-axis or the Y-axis, and the sliding rod 5 includes a pull rod and a connecting rod. The connecting rod is installed between two adjacent magnetic blocks 6, and the pull rod is installed on the magnetic block 6 close to the free side and extends to the outside of the projection board 1. The elastic member 8 is a spring and is installed on another magnetic block 6. The other end of the elastic member 8 is fixedly connected to the inner wall of the inner cavity of the projection board 1 away from the pull rod. By pulling the pull rod, the sliding rod 5 drives the two magnetic blocks 6 to move outward and the elastic member 8 is pulled and deformed. The elastic member 8 is fixed and fixed by the clamping connection between the magnetic block 6 and the limiting hole 4. When the magnetic block 6 needs to be stored, it only needs to press the magnetic block 6 into the projection board 1 to compress and deform the elastic body 7, and the magnetic block 6 is separated from the limiting hole 4. The elastic member 8 loses its limiting effect and recovers its deformation, thereby driving the magnetic block 6 and the sliding rod 5 to retreat and reset.

[0046] Furthermore, the free side of the projection board 1 is arranged on the vertical plane of the projection board 1, and a sliding groove 9 adapted to the sliding rod 5 is opened on the free side of the projection board 1, and the pull rod end of the sliding rod 5 passes through the sliding groove 9 and extends to the outside of the projection board 1, so that the sliding rod 5 drives the magnetic block 6 to slide in the projection board 1;

[0047] When the utility model is in use, the pull rod 5 in the projection board 1 on one side of the Z axis is first pulled outward, so that the pull rod 5 drives the magnetic block 6 to move outward so that the magnetic block 6 is engaged with the limiting hole 4, and the magnetic block 6 is flush with the outer side surface of the projection board 1. At this time, the projection board 1 is fitted with the teaching magnetic board, and the three-coordinate projection frame can be adsorbed and fixed on the teaching magnetic board. Then, the exhibit support 2 is placed on the upper surface of the projection board 1 at the bottom of the three-coordinate projection frame, so that the bottom plate 21 drives the supporting legs 24 to engage with the positioning holes 3, so as to achieve the stability of the exhibit support 2, and the object on the exhibit support 2 can be projected for teaching. When it is necessary to change the position of the display object, it is only necessary to replace the exhibit support 2 to the projection board 1 on the side of the teaching magnetic board. After the supporting legs 24 are plugged into the positioning holes 3, one end of the supporting legs 24 located in the positioning holes 3 contacts with the magnetic block 6 and is magnetically connected, so as to achieve the stability of the exhibit support 2.

[0048] In summary, the three-view teaching aid proposed by the utility model forms a rectangular three-coordinate system by making three projection boards 1 perpendicular to each other in pairs, so as to perform three-coordinate projection on the exhibits later, and then engage the protrusions on the exhibit bracket 2 with the positioning holes 3, so that the exhibit bracket 2 can be quickly installed on the projection board 1, and it is also convenient to disassemble the exhibit bracket 2, so that the exhibit bracket 2 can be changed in position on the three projection boards 1, thereby facilitating the position change of the physical exhibits, and the three views of the object to be explained can be displayed in real time and intuitively, and the teacher can also directly draw or explain on the teaching magnetic board, so that the actual teaching is more intuitive and the explanation effect is better. The overall structure is simple and the operation is convenient, which brings convenience to the actual teaching.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A three-view teaching aid, comprising a three-coordinate projection frame and an exhibit support (2), characterized in that: The three-coordinate projection frame comprises three projection plates (1), wherein the three projection plates (1) are vertically connected to each other in pairs to form a right-angle three-coordinate system, and the exhibit support (2) is detachably connected to the projection surface inside the projection plate (1); A magnetic attraction component is installed inside the projection board (1), and the three-coordinate projection frame is adsorbed on the teaching magnetic board through the magnetic attraction component.

2. A three-view teaching aid according to claim 1, characterized in that: A positioning hole (3) is provided on the projection surface of the projection board (1), and a protrusion matching and corresponding to the positioning hole (3) is provided on the exhibit support (2), and the exhibit support (2) is clamped with the positioning hole (3) via the protrusion.

3. A three-view teaching aid according to claim 2, characterized in that: The exhibit support (2) comprises a base plate (21), a rotating seat (22), a bearing plate (23), and a leg (24). The rotating seat (22) is rotatably mounted on one side of the base plate (21), the bearing plate (23) is mounted on the rotating seat (22), and the leg (24) is mounted on the other side of the base plate (21). The leg (24) protrudes toward a side away from the rotating seat (22) and is adapted to the positioning hole (3).

4. A three-view teaching aid according to claim 3, characterized in that: The bottom plate (21) is X-shaped, and legs (24) are installed at the four ends of the X. The number of the positioning holes (3) is four and they are arranged in a rectangular array, and the four positioning holes (3) correspond to the four legs (24) one by one.

5. A three-view teaching aid according to claim 3, characterized in that: One end of the rotating seat (22) away from the bottom plate (21) is concave-shaped, and the opening of the concave shape faces the side away from the bottom plate (21). A connecting rod is rotatably connected in the concave groove via a rotating shaft, and the other end of the connecting rod extends to the outside of the groove and is fixedly connected to the bearing plate (23).

6. A three-view teaching aid according to claim 2, characterized in that: A limiting hole (4) is provided on a side of the projection board (1) away from the projection surface. The limiting hole (4) and the positioning hole (3) are arranged opposite to each other. The magnetic attraction component is slidably arranged in the inner cavity of the projection board (1). The magnetic attraction component is moved to engage with the limiting hole (4), so that the magnetic attraction component fits with the teaching magnetic board.

7. A three-view teaching aid according to claim 6, characterized in that: When the magnetic attraction component is engaged with the limiting hole (4), the magnetic attraction component is located between the positioning hole (3) and the limiting hole (4), and the protrusion on the exhibition support (2) is engaged with the positioning hole (3) and is magnetically connected to the magnetic attraction component.

8. A three-view teaching aid according to claim 6 or 7, characterized in that: The magnetic attraction component comprises a sliding rod (5) and a magnetic block (6), wherein the sliding rod (5) is slidably mounted on the free side of the projection board (1), and the magnetic block (6) is slidably arranged inside the projection board (1), and one end of the sliding rod (5) located inside the projection board (1) is fixedly connected to the magnetic block (6), and the magnetic block (6) is driven to move by pulling the sliding rod (5).

9. A three-view teaching aid according to claim 8, characterized in that: An elastic body (7) is installed on one side of the magnetic block (6) close to the positioning hole (3), and the magnetic block (6) and the elastic body (7) are respectively fitted with the inner walls of the projection plate (1) on two opposite sides.

10. A three-view teaching aid according to claim 8, characterized in that: An elastic member (8) is arranged inside the projection board (1), and the sliding rod (5) drives the magnetic block (6) to move in an elastic manner within the projection board (1) through the elastic member (8).

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