Geometric figure motion trail display device

Abstract

The utility model relates to the technical field, in particular to a geometric figure motion trail display device which comprises a bottom plate, a magnetic writing board installed on the bottom plate, a walking plate fixed on the side wall of the magnetic writing board, a limiting rail fixed on the bottom plate, a movable frame installed on the limiting rail in a sliding mode, and an accompanying assembly installed on the movable frame. The accompanying assembly comprises an upper plate, a clamping block is fixed to one side of the upper plate, a lifting mechanism is installed below the clamping block, a figure assembly is rotationally clamped to the lifting mechanism, a vertical hole is formed in the clamping block, and a reinforcing hole is formed in the upper plate. When the device is used, the graphic board with a geometrical shape can roll and walk on the walking board, the magnet block can serve as a paintbrush to scribe on the magnetic writing board, the device is convenient to operate, the graphic board can be driven to roll and advance only by manually pushing the moving frame, and the device is rapid and convenient to use.

Description

Technical Field

[0001] This utility model relates to a display device, specifically a geometric shape motion trajectory display device, belonging to the field of teaching aids technology. Background Technology

[0002] In the field of mathematics teaching and research, the understanding and demonstration of the trajectories of geometric figures are of paramount importance. When necessary, teaching aids and devices are used for such demonstrations. This not only helps students to deeply grasp the properties and laws of motion of geometric figures, but also provides intuitive visual evidence for related scientific research. In teaching, it can provide more intuitive learning assistance to students and increase the fun of learning.

[0003] For example, Chinese utility model patent application number 202420185239.X describes a geometric motion trajectory display device, which relates to the field of mathematical teaching aids. It includes a vertical plate with a horizontal plate fixedly mounted on its lower side. A first support column and a second support column are fixedly mounted on both sides of the horizontal plate. Both the first and second support columns have notches on their upper sides, containing racks and slots. The slots are located above the racks and are hollow. A sliding groove is also provided on the slot, with a central rod fitting within it. The diameter of the central rod is the same as the sliding groove, allowing the central rod to rotate and slide within the groove. A polygonal plate is mounted on the central rod; rotating the central rod causes the polygonal plate to rotate, clearly displaying the motion state for easy observation. The motion trajectory of the polygonal plate can be recorded on paper with a pen, facilitating recording and comparison for learning.

[0004] However, the above documents can only provide the motion cycloids at different distances from the pen to the center rod, which has little connection with the geometric figures and little connection with the application of polygonal boards, resulting in the problem of the displayed geometric figures having a single motion trajectory.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a geometric shape motion trajectory display device to solve the above problems. It can use a magnetic writing board to present and display the motion trajectory of geometric shapes. In use, the geometric shape board can roll and move on the walking board, while the magnetic block can act as a pen to draw on the magnetic writing board, which can better display the motion trajectory of each point of different shape boards.

[0007] This utility model achieves the above-mentioned objectives through the following technical solution: a geometric shape motion trajectory display device, including a base plate, on which a magnetic writing board is installed. The magnetic writing board is a commonly used, convenient, and erasable writing display product that uses a magnet as a writing pen to attract iron filings in a container to form writing marks. Small-area magnetic writing boards are often sold as children's educational toys. An erasing magnetic block for removing marks is also slidably engaged on one side of the magnetic writing board. After passing over the magnetic writing board, the erasing magnetic block can eliminate the marks on the other side, thus facilitating the next display use. A traveling plate is fixed on the side wall of the magnetic writing board, and a limiting rail is fixed on the base plate. A moving frame is slidably installed on the limiting rail, and a following component is installed on the moving frame. The following component includes an upper plate, and a locking block is fixed on one side of the upper plate. A lifting mechanism is installed below the locking block, and a graphic component is rotatably engaged on the lifting mechanism.

[0008] Furthermore, the snap-fit ​​block has a vertical hole, and the upper plate has a reinforcing hole.

[0009] Furthermore, the lifting mechanism includes a sliding rod that is slidably engaged in the vertical hole, an assembly ring being fixed at the bottom end of the sliding rod, and a push spring being fixedly connected between the bottom of the engaging block and the assembly ring. The push spring is used to keep the assembly ring away from the engaging block in a timely manner.

[0010] Furthermore, a reinforcing rod is fixed to the assembly ring, with the top end of the reinforcing rod extending into the reinforcing hole. The reinforcing rod is used to better stabilize the movement of the upper plate and the snap-fit ​​block.

[0011] Furthermore, the movable frame includes a crossbar fixed to the upper plate, a walking foot fixed to the bottom of the crossbar, a sliding ring at the bottom end of the walking foot, and an operating component fixed to the top of the crossbar.

[0012] Furthermore, the limiting rail includes side plates fixed on the base plate, a track rod fixed between the side plates, and a sliding ring slidably sleeved on the track rod, which can limit the walking direction of the graphic component.

[0013] Furthermore, the graphic component includes a graphic plate, the bottom of which contacts the upper surface of the walking plate. A plug hole is provided on the side wall of the graphic plate near the magnetic writing board, and a magnet is provided in the plug hole. A snap-fit ​​shaft is fixed on the side of the graphic plate near the assembly ring. The snap-fit ​​shaft is located inside the assembly ring, and one end of the snap-fit ​​shaft is threaded with an end cap. The end cap facilitates the disassembly and replacement of the graphic plate by personnel. A retaining ring is provided on the snap-fit ​​shaft.

[0014] Furthermore, the plug holes are distributed at the center of the graphic board, and at the midpoint of one side of the graphic board and next to the included angle of the edge, which can better reflect the movement trajectory of the geometric shape.

[0015] The technical effects and advantages of this utility model are as follows: This display device can use a magnetic writing board to present and display the movement trajectory of geometric shapes. When in use, the geometric shape board can roll and move on the walking board, while the magnetic block can act as a pen to draw on the magnetic writing board. Moreover, this device is easy to operate. It only requires manually pushing the moving frame to drive the graphic board to roll. It is quick and convenient to use and can better display the movement trajectory of different points on different graphic boards. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of one side of the magnetic writing board of this utility model;

[0018] Figure 3 This is a schematic diagram of the graphic plate structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the accompanying component structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the end cap structure of this utility model;

[0021] In the diagram: 1. Base plate; 101. Magnetic writing board; 102. Walking plate; 2. Limiting rail; 201. Side plate; 202. Track rod; 3. Moving frame; 301. Crossbar; 302. Walking foot; 303. Sliding ring; 304. Operating component; 4. Accompanying component; 401. Upper plate; 402. Snap-fit ​​block; 5. Lifting mechanism; 501. Sliding rod; 502. Assembly ring; 503. Push-down spring; 504. Reinforcing rod; 6. Graphic component; 601. Graphic plate; 602. Magnet block; 603. Snap-fit ​​shaft; 604. End cap. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5As shown, a geometric motion trajectory display device includes a base plate 1, on which a magnetic writing board 101 is mounted. The magnetic writing board 101 is a commonly used, easy-to-erase writing display product that uses a magnet as a writing pen, attracting iron filings inside the container to form writing. Small-area magnetic writing boards 101 are often sold as children's educational toys. An erasing magnetic block for removing marks is also slidably engaged on one side of the magnetic writing board 101. After passing over the magnetic writing board 101, the erasing magnetic block can erase marks on the other side. The magnetic writing board 101 is equipped with a walking plate 102 fixed on its side wall for easy display and use. A limit rail 2 is fixed on the bottom plate 1. A movable frame 3 is slidably installed on the limit rail 2. A following component 4 is installed on the movable frame 3. The following component 4 includes an upper plate 401. A snap-fit ​​block 402 is fixed on one side of the upper plate 401. A lifting mechanism 5 is installed below the snap-fit ​​block 402. A graphic component 6 is rotatably snapped onto the lifting mechanism 5. A vertical hole is opened on the snap-fit ​​block 402. A reinforcement hole is opened on the upper plate 401.

[0024] The lifting mechanism 5 includes a sliding rod 501 that is slidably engaged in a vertical hole. An assembly ring 502 is fixed to the bottom end of the sliding rod 501. A push spring 503 is fixedly connected between the bottom of the engagement block 402 and the assembly ring 502. The push spring 503 is used to keep the assembly ring 502 away from the engagement block 402 in a timely manner. A reinforcing rod 504 is also fixed on the assembly ring 502. The top end of the reinforcing rod 504 extends into the reinforcing hole. The reinforcing rod 504 is used to better stabilize the movement of the upper plate 401 and the engagement block 402.

[0025] The movable frame 3 includes a crossbar 301 fixed to the upper plate 401. A walking foot 302 is fixed to the bottom of the crossbar 301. A sliding ring 303 is provided at the bottom end of the walking foot 302. An operating member 304 is fixed to the top of the crossbar 301.

[0026] The limiting rail 2 includes a side plate 201 fixed on the base plate 1, a track rod 202 fixed between the side plates 201, and a sliding ring 303 slidably sleeved on the track rod 202, which can limit the walking direction of the graphic component 6.

[0027] The graphic component 6 includes a graphic plate 601. The bottom of the graphic plate 601 is in contact with the upper surface of the walking plate 102. A plug hole is provided on the side wall of the graphic plate 601 near the magnetic writing plate 101. A magnet 602 is provided in the plug hole. A snap-fit ​​shaft 603 is fixed on the side of the graphic plate 601 near the assembly ring 502. The snap-fit ​​shaft 603 is located inside the assembly ring 502, and an end cap 604 is installed at one end of the snap-fit ​​shaft 603 by means of a thread. The end cap 604 can facilitate personnel to disassemble and replace the graphic plate 601. A retaining ring is provided on the snap-fit ​​shaft 603. The plug holes are distributed in the center of the graphic plate 601, and are also distributed at the midpoint of one side of the graphic plate 601 and next to the edge angle, so as to better reflect the movement trajectory of the geometric figure.

[0028] This display device can use a magnetic writing board 101 to present and display the movement trajectory of geometric shapes. When in use, the geometrically shaped graphic board 601 can roll and move on the walking board 102, while the magnetic block 602 can act as a pen to draw on the magnetic writing board 101. Moreover, this device is easy to operate. It only requires manually pushing the moving frame 3 to drive the graphic board 601 to roll and move. It is quick and convenient to use and can better display the movement trajectory of different points of the graphic board 601.

[0029] In use, the movable frame 3 moves the graphic board 601 to one side of the magnetic writing board 101. Then, the eraser is used to remove the marks. The movable frame 3 is then pushed at a constant speed, which allows the accompanying component 4 to move the graphic board 601. The graphic board 601 can roll on the traveling plate 102. The upper surface of the traveling plate 102 is covered with a rubber layer to increase friction. When the graphic board 601 rolls, it can cause the magnet 602 to leave marks on the magnetic writing board 101. These marks are the movement trajectories of the geometric shapes. To facilitate the replacement of the graphic board 601, one end of the track rod 202 can extend outside the magnetic writing board 101 to avoid obstructing the graphic board 601 from detaching.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A geometric motion trajectory display device, comprising a base plate (1), wherein a magnetic writing board (101) is mounted on the base plate (1), and a walking board (102) is fixed on the side wall of the magnetic writing board (101), characterized in that: A limiting rail (2) is fixed on the base plate (1). A movable frame (3) is slidably installed on the limiting rail (2). A following component (4) is installed on the movable frame (3). The following component (4) includes an upper plate (401). A snap-fit ​​block (402) is fixed on one side of the upper plate (401). A lifting mechanism (5) is installed below the snap-fit ​​block (402). A graphic component (6) is rotatably snapped onto the lifting mechanism (5).

2. The geometric motion path display device of claim 1, wherein: The snap-fit ​​block (402) has a vertical hole, and the upper plate (401) has a reinforcement hole.

3. The geometric motion path display device of claim 2, wherein: The lifting mechanism (5) includes a sliding rod (501) that is slidably engaged in the vertical hole. An assembly ring (502) is fixed at the bottom end of the sliding rod (501). A push spring (503) is fixedly connected between the bottom of the engaging block (402) and the assembly ring (502).

4. The geometric motion path display apparatus of claim 3, wherein: A reinforcing rod (504) is also fixed on the assembly ring (502), and the top end of the reinforcing rod (504) extends into the reinforcing hole.

5. The geometric motion path display apparatus of claim 4, wherein: The movable frame (3) includes a crossbar (301) fixed to the upper plate (401), a walking foot (302) fixed to the bottom of the crossbar (301), a sliding ring (303) provided at the bottom end of the walking foot (302), and an operating component (304) fixed to the top of the crossbar (301).

6. The geometric motion path display apparatus of claim 5, wherein: The limiting rail (2) includes side plates (201) fixed on the base plate (1), and a track rod (202) is fixed between the side plates (201). The sliding ring (303) is slidably sleeved on the track rod (202).

7. The geometric motion path display apparatus of claim 3, wherein: The graphic component (6) includes a graphic plate (601). A plug hole is provided on the side wall of the graphic plate (601) near the magnetic writing board (101). A magnet block (602) is provided in the plug hole. A snap-fit ​​shaft (603) is fixed on the side of the graphic plate (601) near the assembly ring (502). The snap-fit ​​shaft (603) is located inside the assembly ring (502), and an end cap (604) is installed at one end of the snap-fit ​​shaft (603) by means of a thread. A retaining ring is provided on the snap-fit ​​shaft (603).

8. The geometric motion trajectory display device according to claim 7, characterized in that: The plug holes are distributed at the center of the graphic plate (601), and at the midpoint of one side and next to the included angle of the edge of the graphic plate (601).

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