Multifunctional demonstration pointer

Abstract

The utility model provides a multifunctional demonstration pointer, which comprises a rod body and a handle body, the first end of the rod body is provided with an indicating block, the rod body is provided with a plurality of installation parts for installing writing pens along the length extension direction, and the middle section of the rod body is provided with a support body. The first end of the supporting body is rotatably provided with a rotary supporting part protruding out of the outer surface of the rod body, and the second end of the supporting body penetrates through the rod body and then is detachably connected with the handle body. When the writing board is used, the writing pen is installed on the rod body through the installation part, the writing pen and the supporting part are distributed on the same side, then the handle body is held by one hand, the supporting part and the writing pen are supported on the surface of the writing board at the same time, then the rod body is poked by the other hand, and the writing pen is driven to do circular motion with the supporting part as the circle center. And drawing of an arc or a circle can be completed. Therefore, the use function of the pointer is expanded.

Description

Technical Field

[0001] This utility model relates to the field of teaching aids technology, and in particular to a multifunctional demonstration pointer. Background Technology

[0002] A pointer is a tool used in training and teaching processes. It is typically used to indicate content on teaching display areas such as blackboards, whiteboards, and projector screens to attract trainees' attention and help them better understand and follow the teaching content.

[0003] While existing pointers have made significant progress in expanding their functions, they still fall short in meeting certain basic teaching needs. Drawing circles, a frequently used demonstration method in multidisciplinary presentations and teaching, is crucial for visually showcasing graphic features, explaining geometric principles, and demonstrating circular motion. However, current pointers, regardless of their rich functionality, struggle to directly and conveniently perform circle drawing operations in teaching scenarios. In traditional teaching, compasses, as specialized tools for drawing circles, can accurately draw circles of different radii, but when combined with pointers for comprehensive teaching demonstrations, they suffer from cumbersome operation and the need for frequent tool switching. Existing multifunctional demonstration pointers, due to their design focus on emerging electronic functions, neglect this fundamental and crucial teaching function. Therefore, we propose a multifunctional pointer device. Utility Model Content

[0004] The purpose of this utility model is to provide a multifunctional demonstration pointer that can draw arcs. To achieve the above-mentioned technical features, this utility model achieves its purpose as follows:

[0005] A multifunctional demonstration pointer includes a rod and a handle. The first end of the rod is provided with an indicator block. The rod has multiple mounting parts for mounting a writing pen along its length. A support is installed on the middle section of the rod. The first end of the support is rotatably mounted with a rotating support part protruding from the outer surface of the rod. The second end of the support passes through the rod and is detachably connected to the handle.

[0006] The mounting part is a tapered hole adapted to the taper of chalk.

[0007] The mounting part includes a through hole on the rod body and a threaded hole communicating with the through hole, and a fastening bolt is fitted into the threaded hole.

[0008] The handle is fitted with a motor, the output shaft of which is connected to a shaft with a polygonal cross-section, and the second end of the support is provided with a plug hole that is adapted to the shaft.

[0009] The second end of the rod is provided with a receiving hole, and the end of the receiving hole is provided with an internal thread section. The motor output shaft and the shaft are provided with an external thread section that is adapted to the internal thread section.

[0010] The indicator block is made of rubber.

[0011] The rod and the handle are made of aluminum alloy.

[0012] The handle contains a built-in rechargeable battery.

[0013] This utility model relates to a multifunctional demonstration pointer, comprising a rod and a handle. The rod has multiple mounting portions along its length for attaching a writing pen. A support body is mounted on the middle section of the rod. The first end of the support body has a rotatable rotating support portion protruding from the outer surface of the rod. The second end of the support body passes through the rod and is detachably connected to the handle. In use, the writing pen is first mounted on the rod via the mounting portions, ensuring the pen and support body are on the same side. Then, one hand holds the handle, supporting the support body and writing pen simultaneously on the writing board surface. The other hand then moves the rod, driving the writing pen to move in a circle around the support body, thus drawing arcs or circles. This expands the functionality of the pointer. The motor eliminates the need for manual rotation of the rod when drawing circles; the motor output shaft drives the shaft, support body, and rod to move in a circle around the support body's axis, simplifying operation. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 A schematic diagram of the structure of a multifunctional demonstration pointer in its first working state, provided for an embodiment of this utility model;

[0016] Figure 2 A diagram showing the connection structure between the conical hole and the chalk provided in an embodiment of this utility model;

[0017] Figure 3 A structural diagram of the support provided in an embodiment of this utility model;

[0018] Figure 4 A structural diagram of the storage hole and shaft provided in an embodiment of this utility model;

[0019] Figure 5 A schematic diagram of the structure of a multifunctional demonstration pointer in its second working state, provided for an embodiment of this utility model;

[0020] In the diagram: rod body 1, storage hole 1a, internal thread section 1b, handle body 2, indicator block 3, mounting part 4, tapered hole 4a, through hole 4b, threaded hole 4c, fastening bolt 4d, support body 5, support part 6, motor 7, shaft body 8, external thread section 9, bearing 10, chalk 11, indicator light 12. Detailed Implementation

[0021] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0022] See appendix Figure 1-5 A multifunctional demonstration pointer includes a rod 1 and a handle 2. The first end of the rod has an indicator block 3. Multiple mounting parts 4 for connecting a writing pen are provided along the length of the rod 1. A support body 5 is mounted on the middle section of the rod. A rotating support part 6 protruding from the outer surface of the rod 1 is rotatably mounted on the first end of the support body 5. The second end of the support body 5 passes through the rod 1 and is detachably connected to the handle 2. In operation, the writing pen is first mounted on the rod 1 via the mounting parts 4, ensuring the writing pen and support part 6 are on the same side. Then, one hand holds the handle 2, supporting the support part 6 and the writing pen simultaneously on the writing board surface. The other hand then moves the rod, driving the writing pen to move in a circle around the support part 6, thus drawing arcs or circles. By changing the connection of the writing pen to different mounting parts, circles of different sizes can be drawn. This expands the functionality of the pointer.

[0023] As one implementation method, in this embodiment, see... Figure 2 The mounting part 4 is a conical hole 4a that matches the taper of the chalk 11. In use, the chalk 11 is inserted into the conical hole 4a, and then the handle 2 is held with one hand so that the support part 6 and the chalk 11 are supported on the blackboard surface at the same time. Then, the other hand moves the rod to drive the writing pen to make a circular motion around the support part 6 as the center, so as to complete the drawing of arcs or circles on the blackboard.

[0024] As one implementation method, in this embodiment, see... Figure 1 The mounting part 4 includes a through hole 4b on the rod and a threaded hole 4c that communicates with the through hole. A fastening bolt 4d is fitted into the threaded hole 4c. In use, the whiteboard marker is inserted into the through hole 4b and the fastening bolt 4d is turned so that the end of the fastening bolt 4d abuts against the whiteboard marker, thus completing the installation of the whiteboard marker. Then, one hand holds the handle 2 so that the support part 6 and the whiteboard marker are supported on the whiteboard surface at the same time. Then, the other hand moves the rod to drive the writing pen to make a circular motion around the support part 6 as the center, so that the arc or circle can be drawn on the whiteboard.

[0025] As one implementation method, in this embodiment, see... Figure 1 , Figure 3, Figure 4 The handle 2 is embedded with a motor 7. The output shaft of the motor 7 is connected to the shaft 8, which has a polygonal cross-section. The second end of the support 5 is provided with a plug hole 5a that is adapted to the shaft 8. With the motor 7, when the present invention is used to draw circles, it is no longer necessary to manually drive the rod 1 to rotate. During operation, the output shaft of the motor 7 drives the shaft 8, the support 5 and the rod 1 to make circular motion around the axis of the support part 6, which simplifies the operation.

[0026] Further, see Figure 4 , Figure 5 The second end of the rod body 1 is provided with a storage hole 1a, and the end of the storage hole 1a is provided with an internal thread section 1b. The output shaft of the motor 7 and the shaft body 8 are provided with an external thread section 9 that is adapted to the internal thread section 1b. When the present invention is used as a pointer, the handle body 2 is connected to the rod body 1 by threads, which realizes the storage of the shaft body 8 and completes the installation of the handle body 2.

[0027] Furthermore, the indicator block 3 is made of rubber to prevent slipping and injury; an indicator light 12 is provided at the end of the indicator block 3.

[0028] Furthermore, the rod 1 and the handle 2 are made of aluminum alloy to reduce the overall weight.

[0029] Furthermore, the handle 2 has a built-in rechargeable battery to power the motor 7.

Claims

1. A multifunctional demonstration pointer, comprising a rod body and a handle body, a first end of the rod body is provided with an indicating block, characterized in that: The rod body has multiple mounting parts for mounting a writing pen along its length. A support body is installed on the middle section of the rod body. The first end of the support body is rotatably mounted with a rotating support part protruding from the outer surface of the rod body. The second end of the support body passes through the rod body and forms a detachable connection with the handle.

2. The multi-function presentation pointer of claim 1, wherein: The mounting part is a tapered hole adapted to the taper of chalk.

3. The multi-function presentation pointer of claim 1, wherein: The mounting part includes a through hole on the rod body and a threaded hole communicating with the through hole, and a fastening bolt is fitted into the threaded hole.

4. The multi-function presentation pointer according to claim 2 or 3, wherein: The handle is fitted with a motor, the output shaft of which is connected to a shaft with a polygonal cross-section, and the second end of the support is provided with a plug hole that is adapted to the shaft.

5. The multi-function presentation pointer of claim 4, wherein: The second end of the rod is provided with a receiving hole, and the end of the receiving hole is provided with an internal thread section. The motor output shaft and the shaft are provided with an external thread section that is adapted to the internal thread section.

6. The multi-function presentation pointer of claim 5, wherein: The indicator block is made of rubber.

7. The multi-function presentation pointer of claim 6, wherein: The rod and the handle are made of aluminum alloy.

8. The multi-function presentation pointer of claim 7, wherein: The handle contains a built-in rechargeable battery.

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