History display teaching aid

Abstract

The utility model discloses a history display teaching aid, which comprises a movable base, a supporting part and a display board, a supporting frame is arranged at the top of the movable base, and the supporting part is arranged in the movable base. The supporting part comprises a transmission shaft a rotationally arranged in the movable base, a gear b rotationally arranged in the movable base, a rotating supporting foot a rotationally arranged in the movable base and a rotating supporting foot b rotationally arranged in the movable base, and the two ends of the transmission shaft a are connected with the gear b in a meshed mode; the two ends of the transmission shaft a are connected with the rotary supporting legs b in an engaged mode. According to the utility model, through the arrangement of the supporting part, when the teaching aid is used, the rotating transmission shaft a rotates to drive the gear b to rotate, so that the rotating gear b drives the rotating support leg a to rotate, and the rotating transmission shaft a drives the rotating support leg b to rotate, so that the rotating support leg a and the rotating support leg b can rotate and unfold at the same time; therefore, the teaching aid has better stability and is prevented from toppling over.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching tools, in particular to a history display teaching aid. Background Art

[0002] History is a unique subject. The historical figures and events it teaches occurred in a specific time and place in the past, and these real-life scenarios can no longer be reproduced. History instruction often involves visiting memorial halls, museums, historical sites, precious cultural relics, and famous scenic spots. In actual history instruction, teachers often use historical display aids to help students better understand history.

[0003] When using existing historical display teaching aids, teachers will stick the paper historical materials that need to be displayed on the display board to assist teaching. At this time, in order to allow students in the back row to also see the information displayed on the historical display teaching aids, the historical display teaching aids usually need to be adjusted to a certain height, which will cause the overall center of gravity of the teaching aids to rise and reduce stability. When subjected to external force, it will fall over. Utility Model Content

[0004] The purpose of the present utility model is to provide a history display teaching aid to solve the problem raised in the above-mentioned background technology that in the use of the existing history display teaching aids, teachers will stick the paper historical materials to be displayed on the display board for display to assist teaching. At this time, in order to enable students in the back row to also see the information displayed on the history display teaching aids, the history display teaching aids usually need to be adjusted to a certain height, which will cause the overall center of gravity of the teaching aids to rise and the stability to decrease. When subjected to external force, the teaching aids will fall over.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a history display teaching aid, comprising a movable base, a support portion and a display board:

[0006] A support frame is provided on the top of the mobile base, and the support part is provided inside the mobile base. The support part includes a transmission shaft a rotatably provided inside the mobile base, a gear b rotatably provided inside the mobile base, a rotating support foot a rotatably provided inside the mobile base, and a rotating support foot b rotatably provided inside the mobile base. Both ends of the transmission shaft a are meshed and connected with the gear b, and both ends of the transmission shaft a are meshed and connected with the rotating support foot b. The gear b is meshed and connected with the rotating support foot a. The transmission shaft a rotates to drive the rotating support foot a and the rotating support foot b to rotate simultaneously. The display board is provided on the top of the mobile base to display information.

[0007] By adopting the above technical solution, when using the teaching aid, the rotation of the rotating transmission shaft a can drive the gear b to rotate, so that the rotating gear b drives the rotating support leg a to rotate, and the rotating transmission shaft a drives the rotating support leg b to rotate, so that the rotating support leg a and the rotating support leg b can be rotated and unfolded at the same time, thereby giving the teaching aid better stability and preventing it from tipping over.

[0008] Preferably, the support portion further includes gears a provided at both ends of the transmission shaft a, and the gears a are meshedly connected with the gears b and the rotating support legs b.

[0009] By adopting the above technical solution, the rotation of the transmission shaft a can simultaneously drive the gear b and the rotating support foot b to rotate.

[0010] Preferably, the support part also includes a transmission shaft b rotatably arranged inside the support frame and a transmission bevel gear arranged at the center of the transmission shaft a. Bevel gears are arranged at both ends of the transmission shaft b, and the bevel gear arranged at the bottom of the transmission shaft b is meshed with the transmission bevel gear.

[0011] By adopting the above technical solution, the transmission shaft b can drive the transmission shaft a to rotate inside the mobile base when it rotates.

[0012] Preferably, the support portion further comprises a crank rotatably arranged inside the support frame, and a bevel gear arranged at one end of the crank is meshedly connected with a bevel gear arranged at the top of the transmission shaft b.

[0013] By adopting the above technical solution, the transmission shaft b can be driven to rotate inside the support frame by turning the crank.

[0014] Preferably, the support portion further comprises a handle slidably arranged at one end of the crank, a fixing hole is provided on the side of the support frame, and the handle is slidably engaged with the fixing hole.

[0015] By adopting the above technical solution, the handle can be slid along the crank and inserted into the fixing hole, thereby limiting the rotation angle of the crank.

[0016] Preferably, two rotating legs a are provided, and the ends of the two rotating legs a are provided with latching teeth that mesh with the two gears b.

[0017] By adopting the above technical solution, the rotation of the gear b can drive the rotating leg a to rotate.

[0018] Preferably, two rotating legs b are provided, and the ends of the two rotating legs b are provided with latching teeth that mesh with the two gears a.

[0019] By adopting the above technical solution, the rotation of gear a can drive the rotating support b to rotate.

[0020] Compared with the prior art, the beneficial effect of the present invention is that by providing a support part, when the teaching aid is used, the rotation of the rotating transmission shaft a can drive the gear b to rotate, so that the rotating gear b drives the rotating support leg a to rotate, and the rotating transmission shaft a drives the rotating support leg b to rotate, so that the rotating support leg a and the rotating support leg b can be rotated and unfolded at the same time, thereby allowing the teaching aid to obtain better stability and prevent it from tipping over. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a schematic diagram of the overall structure of this application;

[0023] Figure 3 This is a schematic diagram of the overall side cross-sectional structure of this application;

[0024] Figure 4 This is a schematic diagram of the overall side cross-sectional structure of this application;

[0025] Figure 5 This is a schematic diagram of the overall side cross-sectional structure of this application;

[0026] Figure 6 This is a schematic diagram of the crank structure of this application;

[0027] Figure 7 This is a structural diagram of the transmission shaft a of this application.

[0028] In the figure: 1. Mobile base; 101. Support frame; 102. Fixing hole; 2. Support part; 201. Transmission shaft a; 202. Gear a; 203. Transmission bevel gear; 204. Transmission shaft b; 205. Crank handle; 206. Handle; 207. Gear b; 208. Rotating support foot a; 209. Rotating support foot b; 3. Display board. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figure 1 、 Figure 2 and Figure 3 This embodiment provides a technical solution: a history display teaching aid, including a mobile base 1, a support part 2 and a display board 3:

[0032] A support frame 101 is provided on the top of the mobile base 1, and the support part 2 is provided inside the mobile base 1. A transmission shaft a201 is provided for rotation inside the mobile base 1, a gear b207 is provided for rotation inside the mobile base 1, a rotating support foot a208 is provided for rotation inside the mobile base 1, and a rotating support foot b209 is provided for rotation inside the mobile base 1. Both ends of the transmission shaft a201 are meshed and connected with the gear b207, and both ends of the transmission shaft a201 are meshed and connected with the rotating support foot b209, and the gear b207 is meshed and connected with the rotating support foot a208. The transmission shaft a201 rotates. The rotation drives the rotating support legs a208 and the rotating support legs b209 to rotate simultaneously. The display board 3 is arranged on the top of the mobile base 1 to display information. The bottom of the display board 3 is provided with a retractable and adjustable support rod. When using the teaching aid, the rotation of the rotating transmission shaft a201 drives the gear b207 to rotate, so that the rotating gear b207 drives the rotating support legs a208 to rotate, and the rotating transmission shaft a201 drives the rotating support legs b209 to rotate, so that the rotating support legs a208 and the rotating support legs b209 can rotate and unfold at the same time, so that the teaching aid can obtain better stability and prevent it from tipping over.

[0033] Example 2

[0034] See also Figure 4 、 Figure 5 and Figure 6 This embodiment provides a technical solution: a history display teaching aid, including a support part 2, a transmission shaft a201 and a transmission shaft b204:

[0035] A transmission shaft b204 is provided for rotation inside the support frame 101, a transmission bevel gear 203 is provided at the center of the transmission shaft a201, bevel gears are provided at both ends of the transmission shaft b204, the bevel gear provided at the bottom of the transmission shaft b204 is meshed with the transmission bevel gear 203, so that the transmission shaft b204 can drive the transmission shaft a201 to rotate inside the mobile base 1 when it rotates, and a crank 205 is provided for rotation inside the support frame 101, and the bevel gear provided at one end of the crank 205 is meshed with the bevel gear provided at the top of the transmission shaft b204. The bevel gears are meshed and connected, and the transmission shaft b204 can be driven to rotate inside the support frame 101 by turning the crank 205. A handle 206 is provided at one end of the crank 205, and a fixing hole 102 is provided on the side of the support frame 101. The handle 206 is slidably engaged with the fixing hole 102. The handle 206 can be slid along the crank 205 and inserted into the fixing hole 102 to limit the rotation angle of the crank 205, thereby fixing the rotation angle of the rotating support foot a208 and the rotating support foot b209.

[0036] Example 3

[0037] See also Figure 5 、 Figure 6 and Figure 7 This embodiment provides a technical solution: a history display teaching aid, including a support portion 2, a rotating support foot a208 and a rotating support foot b209:

[0038] Gears a202 are provided at both ends of the transmission shaft a201, and the gear a202 is meshed and connected with the gear b207 and the rotating support foot b209, so that the rotation of the transmission shaft a201 can simultaneously drive the gear b207 and the rotating support foot b209 to rotate. There are two rotating support feet a208, and the ends of the two rotating support feet a208 are provided with latches that are meshed and connected with the two gears b207, so that the rotation of the gear b207 can drive the rotating support foot a208 to rotate. There are two rotating support feet b209, and the ends of the two rotating support feet b209 are provided with latches that are meshed and connected with the two gears a202, so that the rotation of the gear a202 can drive the rotating support foot b209 to rotate. When using the teaching aids, the rotating support feet a208 and the rotating support feet b209 are rotated and unfolded at the same time, so that the teaching aids can obtain better stability and prevent them from tipping over.

[0039] Working principle: First, the teaching aid is moved to the designated location by the pulley arranged at the bottom of the mobile base 1. A retractable and adjustable support rod is arranged at the bottom of the display board 3. The display height of the display board 3 can be adjusted by retracting the support rod, so that the display board 3 can be raised when displaying historical information so that students in the back row of the classroom can also see the information on the display board 3. The display board 3 is a whiteboard with magnetic force. The paper historical materials that need to be displayed can be attached to the display board 3 through the magnet to assist teaching. When the height of the display board 3 is raised, the overall center of gravity of the teaching aid is also raised. The handle 205 is turned to drive the transmission shaft b204 to rotate inside the support frame 101, so that the transmission shaft b204 can drive the transmission shaft a201 to rotate inside the mobile base 1 when rotating, driving the gear b207 rotates, thereby allowing the rotating gear b207 to drive the rotating support foot a208 to rotate, and the rotating transmission shaft a201 drives the rotating support foot b209 to rotate, so that the rotating support foot a208 and the rotating support foot b209 can rotate and unfold at the same time, thereby allowing the teaching aid to obtain better stability and prevent it from tipping over. When the rotating support foot a208 and the rotating support foot b209 are both unfolded and abut against the ground, a handle 206 is provided at one end of the crank 205, and a fixing hole 102 is provided on the side of the support frame 101. The handle 206 is slidably engaged with the fixing hole 102. By sliding the handle 206 along the crank 205 and making it fit into the fixing hole 102, the rotation angle of the crank 205 can be limited, thereby fixing the rotation angle of the rotating support foot a208 and the rotating support foot b209.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A history display teaching aid, characterized in that: include: A mobile base (1), wherein a support frame (101) is provided on the top of the mobile base (1); A support portion (2), the support portion (2) being arranged inside the mobile base (1), the support portion (2) comprising a transmission shaft a (201) rotatably arranged inside the mobile base (1), a gear b (207) rotatably arranged inside the mobile base (1), a rotating support foot a (208) rotatably arranged inside the mobile base (1), and a rotating support foot b (209) rotatably arranged inside the mobile base (1), both ends of the transmission shaft a (201) being meshed and connected with the gear b (207), both ends of the transmission shaft a (201) being meshed and connected with the rotating support foot b (209), the gear b (207) being meshed and connected with the rotating support foot a (208), and the transmission shaft a (201) rotating to drive the rotating support foot a (208) and the rotating support foot b (209) to rotate simultaneously; A display board (3) is provided on the top of the mobile base (1) for displaying information.

2. A history display teaching aid according to claim 1, characterized in that: The support portion (2) further comprises gears a (202) arranged at both ends of the transmission shaft a (201), and the gears a (202) are meshedly connected with the gears b (207) and the rotating support legs b (209).

3. A history display teaching aid according to claim 1, characterized in that: The support portion (2) further comprises a transmission shaft b (204) rotatably arranged inside the support frame (101) and a transmission bevel gear (203) arranged at the center of the transmission shaft a (201); bevel gears are arranged at both ends of the transmission shaft b (204); and a bevel gear arranged at the bottom of the transmission shaft b (204) is meshed with the transmission bevel gear (203).

4. A history display teaching aid according to claim 3, characterized in that: The support portion (2) further comprises a crank (205) rotatably arranged inside the support frame (101), and a bevel gear arranged at one end of the crank (205) is meshedly connected with a bevel gear arranged at the top of the transmission shaft b (204).

5. The history display teaching aid according to claim 1, characterized in that: The support portion (2) further comprises a handle (206) slidably arranged at one end of the crank (205); a fixing hole (102) is provided on the side of the support frame (101); and the handle (206) is slidably engaged with the fixing hole (102).

6. A history display teaching aid according to claim 1, characterized in that: There are two rotating legs a (208), and the ends of the two rotating legs a (208) are provided with latching teeth for meshing and connecting with the two gears b (207).

7. The history display teaching aid according to claim 1, characterized in that: Two rotating legs b (209) are provided, and the ends of the two rotating legs b (209) are provided with latching teeth for meshing and connecting with the two gears a (202).

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