Lever mechanism display device for simulating balance

Abstract

The application proposes a lever mechanism display device for simulating a balance, and the device comprises a fixed plate, the fixed plate is provided with a pedestal, the pedestal is provided with a central column, the central column is hinged with an upper cross beam and a lower cross beam, the upper cross beam and the lower cross beam are arranged in parallel, and the two ends of the upper cross beam and the lower cross beam are hinged to a connecting rod at the same time. Tray plates are arranged at the ends, close to the upper cross beam, of the connecting rods, cartoon models are arranged on the two tray plates, a driving mechanism is connected to the lower cross beam, the situation that a mouse pries cheese through a lever is simulated, the teaching aid is more vivid and vivid, life reality and science popularization are linked according to cognition of children, and the teaching aid is vivid and flexible. The principle and application of the lever mechanism are more vividly displayed, and the science popularization and teaching effects are improved.

Description

Technical Field

[0001] The present application relates to the technical field of popular science teaching tools, and in particular to a lever mechanism display device simulating a balance. Background Art

[0002] The lever mechanism is an important labor-saving mechanism, which is not only often used in life, but also applied in many mechanical equipment. Its function is to lengthen the lever arm so that people can use less force to pry larger objects. As a common labor-saving mechanism in the mechanical field, it is required to be studied in the mechanical majors of various universities. Teachers have also developed various teaching aids to vividly and objectively show the principles and functions to students.

[0003] However, the above-mentioned teaching aids are all for adults, and the teaching objects are high school, college or undergraduate students. They have strong teaching attributes and cannot be used for popularizing science for children. It is not convenient for children to connect, compare and understand it with their daily life, so that they can understand the role and use of the crank-connecting rod mechanism more vividly. Therefore, the teaching and popularization effects are not good. Utility Model Content

[0004] The purpose of the present application is to provide a lever mechanism display device of a simulated balance for popular science education for children, which targets children's cognition, links real life with popular science education, and more vividly displays the principle and use of the crank-connecting rod mechanism, thereby improving the effect of popular science education and teaching.

[0005] The embodiment of the present application is implemented as follows:

[0006] An embodiment of the present application provides a lever mechanism display device for simulating a balance, comprising a fixed plate, a base being arranged on the fixed plate, a center column being arranged on the base, an upper beam and a lower beam being hinged on the center column, the upper beam and the lower beam being arranged in parallel, both ends of the upper beam and the lower beam being hinged on a connecting rod at the same time, a tray being arranged on one end of the connecting rod close to the upper beam, cartoon models being arranged on both trays, and a driving mechanism being connected to the lower beam.

[0007] Through the above technical scheme, the cartoon model and the balance are combined, which can not only simulate the situation of weighing on the balance, but also simulate the situation of people sitting on the seesaw in life. The driving part drives the crossbeam to rotate up and down around the central column to realize the movement of the cartoon model, thereby simulating the state of the cartoon model weighing and sitting on the seesaw. In addition, the cartoon model can attract more children's attention. The balance and the seesaw are common scenes in life, which is convenient for children to connect and compare with the scenes in their daily life. When seeing the scene in subsequent daily life, the memory lever mechanism can be repeatedly strengthened, and the principle thereof can be understood.

[0008] In some embodiments of the present application, the driving mechanism includes a turntable rotatably connected to a fixed plate, a connecting rod is hinged between the turntable and the lower beam, and the beam is driven to rotate through a crank-connecting rod mechanism, thereby increasing the learning of mechanism knowledge.

[0009] In some embodiments of the present application, the cartoon model is detachably connected to the tray, and the cartoon model and the tray are detachably connected, so that the cartoon model that the child likes can be replaced as needed to improve the teaching effect and deepen the memory.

[0010] In some embodiments of the present application, the cartoon model is a mouse and cheese, simulating the situation where the mouse pries the cheese through a lever, making the teaching aid more vivid.

[0011] In some embodiments of the present application, the edges of the fixing plate and the base are rounded to avoid harm to children and improve safety. The cartoon models are people or animals and are painted with colors. The cartoon models are animals or people. After being painted, the teaching aids are more vivid and improve the teaching effect.

[0012] In some embodiments of the present application, a handle for driving the turntable to rotate is provided on the other side of the fixed plate. By rotating the turntable with the handle, the teacher can freely adjust the speed and explain the principle while turning the handle to enhance the teaching effect.

[0013] Compared with the prior art, the embodiments of the present application have at least the following advantages or beneficial effects:

[0014] First, combine the cartoon model with the balance to simulate the situation of weighing on the balance and the situation of people sitting on the seesaw in life, so as to teach the children about levers. The cartoon model can better attract the children's attention. The seesaw and the balance are common scenes in life, which makes it convenient for children to connect and compare the scenes with their daily lives. When they see the scene in their daily lives later, they can repeatedly strengthen their memory of the lever mechanism and understand the principles behind it.

[0015] Secondly, the cartoon model and the tray are connected in a detachable manner, and the cartoon model that children like can be replaced as needed to improve the teaching effect and deepen the memory. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 The front view of the lever mechanism display device for simulating a balance in this application;

[0018] Figure 2 Rear view of the device showing the lever mechanism of a simulated balance for this application.

[0019] Icons: fixed plate 100, base 110, central column 210, lower beam 220, upper beam 230, tray 240, connecting rod 250, driving mechanism 300, connecting rod 310, turntable 320, handle 330, mouse 400, cheese 410. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] In the description of the embodiments of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] Please refer to Figure 1 The present embodiment provides a lever mechanism display device simulating a balance, including a fixed plate 100, a base 110 is arranged on the fixed plate 100, a center column 210 is arranged on the base 110, an upper beam 230 and a lower beam 220 are hinged on the center column 210, the upper beam 230 and the lower beam 220 are arranged in parallel, both ends of the upper beam 230 and the lower beam 220 are hinged on a connecting rod 250 at the same time, a tray 240 is arranged on one end of the connecting rod 250 close to the upper beam 230, cartoon models are arranged on the two trays 240, and a driving mechanism 300 is connected to the lower beam 220.

[0026] The driving mechanism 300 includes a turntable 320 rotatably connected to the fixed plate 100, a connecting rod 310 is hinged between the turntable 320 and the lower beam 220, and a handle 330 for driving the turntable 320 to rotate is provided on the other side of the fixed plate 100. The driving mechanism 300 can adopt the above structure or other driving mechanisms, such as a cam mechanism, a gear mechanism, and drive the beam to rotate through a crank-connecting rod mechanism, thereby increasing the learning of mechanism knowledge.

[0027] In order to facilitate the replacement of the cartoon model, the cartoon model is detachably connected to the tray 240, such as by bolts, latches and buckles. The detachable structure is a conventional technical means in this field and will not be listed or elaborated here.

[0028] In this embodiment, the cartoon models are cheese 410 and mouse 400. Of course, in other embodiments of the utility model, they can also be replaced as needed and will not be described one by one. The simulation of the mouse 400 prying the cheese 410 with a lever makes the teaching aid more vivid.

[0029] During specific use, the teacher rotates the handle 330, and forms a crank-connecting rod mechanism through the turntable 320 and the connecting rod 310, so as to convert the circular motion output by the handle 330 into a thrust for the lower beam 220, so that the lower beam 220 reciprocates around the hinge point between it and the central column 210, and transmits power to the upper beam 230 through the connecting rod 250 at the same time, so that the trays 240 located at both ends of the upper beam 230 show a high and low movement phenomenon, and the mouse 400 and the cheese 410 are respectively fixed on the two trays 240, which can simulate the situation that the mouse 400 pries the cheese 410 with a lever, thereby combining life with teaching, making it convenient for children to connect and compare with scenes in their daily lives, and when they see the scene in their daily lives later, they can repeatedly strengthen their memory of the lever mechanism and understand the principle behind it.

[0030] When the cartoon model on the tray 240 is replaced with other cartoon characters, the situation of sitting on a seesaw can also be simulated, so that one teaching aid can be connected to multiple life scenes, thereby improving practicality.

[0031] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A lever mechanism display device simulating a balance, comprising a fixing plate (100), characterized in that: The fixing plate (100) is provided with a base (110), the base (110) is provided with a central column (210), an upper crossbeam (230) and a lower crossbeam (220) are hingedly connected to the central column (210), the upper crossbeam (230) and the lower crossbeam (220) are arranged in parallel, both ends of the upper crossbeam (230) and the lower crossbeam (220) are hingedly connected to a connecting rod (250), a tray (240) is provided at one end of the connecting rod (250) close to the upper crossbeam (230), cartoon models are provided on both trays (240), and a driving mechanism (300) is connected to the lower crossbeam (220).

2. The lever mechanism display device of the simulated balance according to claim 1, characterized in that: The driving mechanism (300) comprises a rotating disk (320) rotatably connected to the fixed plate (100), and a connecting rod (310) is hingedly connected between the rotating disk (320) and the lower cross beam (220).

3. The lever mechanism display device of the simulated balance according to claim 1, characterized in that: The cartoon model is detachably connected to the tray (240).

4. The lever mechanism display device of the simulated balance according to claim 3, characterized in that: The cartoon models are a mouse (400) and cheese (410).

5. The lever mechanism display device of the simulated balance according to claim 1, characterized in that: The edges of the fixing plate (100) and the base (110) are both rounded.

6. The lever mechanism display device of a simulated balance according to any one of claims 2 to 5, characterized in that: A handle (330) for driving the rotating disk (320) to rotate is provided on the other side of the fixing plate (100).

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