Mathematical function model demonstration tool

Abstract

The utility model relates to the technical field of teaching aids, and particularly discloses a mathematical function model demonstration tool, which comprises an installation mechanism, a teaching aid and a teaching aid, and is characterized in that the installation mechanism comprises a back plate and longitudinal coordinate lines and transverse coordinate lines which are arranged on one surface of the back plate, and scale marks are arranged on the longitudinal coordinate lines and the transverse coordinate lines; a plurality of magnetic attraction pieces and a demonstration mechanism are arranged on the rear surface of the back plate, the demonstration mechanism comprises an external frame plate installed on the back plate, a groove is formed in one surface of the external frame plate, a transparent drawing board is installed in the groove, and the position of the transparent drawing board is matched with that of the back plate; according to the device, by arranging the back plate with the magnetic attraction piece, when wiping is needed, the wiping cylinder can make contact with the transparent drawing board through sliding fit of the stirring block and the stirring groove, so that a curve can be rapidly wiped away, the longitudinal coordinate line and the transverse coordinate line cannot be touched by mistake in the wiping process, and use is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to teaching aid technical field, concretely relates to a mathematical function model demonstration tool. BACKGROUND

[0002] Mathematical function model is a kind of way to the actual problem abstract and mathematical processing, it can transform problem into mathematical expression or equation, to facilitate solution, function model is divided into one function model and multivariate function model, and when demonstrating function model, a mathematical function model demonstration tool is needed;

[0003] When showing function model, the corresponding curve of function formula needs to be drawn and explained, the existing function curve explanation mode is to draw coordinate and corresponding curve directly on blackboard, but this display mode is easy to erase coordinate line when wiping curve for next function explanation, and the existing demonstration mode cannot move the position of whole model, so that part position student can not watch clearly.

[0004] Therefore, the person skilled in the art proposes a mathematical function model demonstration tool to solve the problems raised in the background art.

[0005] The above information disclosed in the background art is only used to increase the understanding of the background art of the utility model, therefore, it can include prior art known by those skilled in the art. CONTENT OF UTILITY MODEL

[0006] The utility model aims at providing a mathematical function model demonstration tool to solve the problems raised in the above background art.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] A mathematical function model demonstration tool, comprising:

[0009] Mounting mechanism, the mounting mechanism includes backboard and longitudinal coordinate line and transverse coordinate line arranged on the surface of backboard, longitudinal coordinate line and transverse coordinate line are all provided with scale line, the back surface of backboard is provided with a plurality of magnetic pieces;

[0010] Demonstration mechanism, the demonstration mechanism includes the external frame plate installed on the backboard, the external frame plate one surface is provided with slot, the transparent drawing board is installed in the slot, and the position of transparent drawing board is adapted to backboard.

[0011] Preferably, the backboard upper and lower ends are all fixedly connected with side plate, the side plate is provided with mounting sliding slot, and the both ends of external frame plate are provided with mounting sliding rail, and the mounting sliding rail and mounting sliding slot are slidingly matched.

[0012] Preferably, the two sides of the slotted interior are provided with moving grooves, and the moving grooves are provided with moving blocks in sliding fit.

[0013] Preferably, the two moving blocks are connected with a wiping cylinder.

[0014] Preferably, one surface of the external frame plate is provided with a pushing groove, and a pushing block is slidingly installed in the pushing groove and connected with the moving block through the pushing groove.

[0015] Preferably, one surface of the back plate is provided with an engaging groove, an upper surface of the engaging groove is provided with a positioning groove, an engaging plate is installed in the engaging groove, the engaging plate is embedded in the engaging groove, an upper surface of the engaging plate is provided with a positioning plug plate, the positioning plug plate is inserted into the positioning groove, and one surface of the engaging plate is connected with a support.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] (1) The back plate with magnetic pieces is arranged, the back plate with longitudinal and transverse coordinate lines is adsorbed on the blackboard, the external frame plate with the transparent drawing board is arranged on the back plate by the sliding fit of the installation slide rail and the installation slide groove, the operator can use the longitudinal and transverse coordinate lines as the fixed background, and the function curve is drawn on the transparent drawing board through the back plate, the wiping cylinder is contacted with the transparent drawing board through the sliding fit of the pushing block and the pushing groove when wiping, so that the curve can be quickly wiped, and the longitudinal and transverse coordinate lines are not touched in the wiping process, and the utility is more convenient.

[0018] (2) The back plate with the engaging groove and the support with the engaging plate are arranged, the support is installed on the back plate through the clamping of the engaging plate and the engaging groove, the whole demonstration device can be taken off from the blackboard, can be moved, and can be used for all-round display in the classroom.

[0019] The above summary is only for the purpose of the description and is not intended to limit in any way. In addition to the above-described exemplary aspects, embodiments and features, further aspects, embodiments and features of the utility model will be apparent by referring to the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a front view of the utility model's three-dimensional structure schematic diagram;

[0021] Figure 2 It is a back view of the utility model's three-dimensional structure schematic diagram;

[0022] Figure 3 is a side view of the utility model;

[0023] Figure 4 is a front view of the utility model.

[0024] In the figure: 1, back plate; 2, side plate; 3, installation sliding groove; 4, longitudinal coordinate line; 5, transverse coordinate line; 6, scale line; 7, external frame plate; 8, slot; 9, transparent drawing board; 10, moving groove; 11, moving block; 12, wiping cylinder; 13, dialing groove; 14, dialing block; 15, installation sliding rail; 16, magnetic attraction piece; 17, connection groove; 18, connection plate; 19, positioning plugboard; 20, support. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Embodiment one:

[0027] Please refer to Figures 1-4 As shown in the figure, a mathematical function model demonstration tool, comprising:

[0028] The installation mechanism includes the back plate 1 and the longitudinal coordinate line 4 and the transverse coordinate line 5 arranged on one surface of the back plate 1, and the scale line 6 is arranged on the longitudinal coordinate line 4 and the transverse coordinate line 5, and a plurality of magnetic attraction pieces 16 are arranged on the back surface of the back plate 1.

[0029] The demonstration mechanism includes the external frame plate 7 installed on the back plate 1, the slot 8 is arranged on one surface of the external frame plate 7, the transparent drawing board 9 is installed in the slot 8, and the position of the transparent drawing board 9 is adapted to the back plate 1.

[0030] Specifically, the side plate 2 is fixedly connected to the upper and lower ends of the back plate 1, the installation sliding groove 3 is arranged on the side plate 2, the installation sliding rail 15 is arranged at both ends of the external frame plate 7, and the installation sliding rail 15 is in sliding cooperation with the installation sliding groove 3.

[0031] Specifically, the moving groove 10 is arranged on both sides of the slot 8, the moving block 11 is arranged in the moving groove 10, and the moving block 11 is in sliding cooperation with the moving groove 10.

[0032] Specifically, the number of the moving block 11 is two, the wiping cylinder 12 is connected between the two moving blocks 11, and the wiping cylinder 12 is in contact with the transparent drawing board 9.

[0033] From the above, the device by setting the back plate 1 with magnetic sheet 16, can be with the longitudinal coordinate line 4 and the transverse coordinate line 5 of the back plate 1 adsorbed on the blackboard, and the installation of slide rail 15 and the sliding fit of installation slide groove 3 with transparent drawing board 9 of the external frame plate 7 set on the back plate 1, the operator can use the longitudinal coordinate line 4 and the transverse coordinate line 5 as a fixed background, through the back plate 1 on the transparent drawing board 9 function curve drawing, when need to wipe through the slide block 14 and the slide slot 13 of the sliding fit, let the wiping cylinder 12 and the transparent drawing board 9 contact, so that the curve can be quickly wiped off, and the wiping process will not accidentally touch the longitudinal coordinate line 4 and the transverse coordinate line 5, more convenient to use.

[0034] Example two:

[0035] Please refer to Figures 1-4 As shown in the figure, the external frame plate 7 is provided with a slide slot 13 on one surface, and a slide block 14 is slidably installed in the slide slot 13, and the slide block 14 is connected with the moving block 11 through the slide slot 13.

[0036] Specifically, the back plate 1 is provided with an adapter slot 17 on one surface, the inner upper surface of the adapter slot 17 is provided with a positioning slot, the adapter slot 17 is installed with an adapter plate 18, the adapter plate 18 is embedded with the adapter slot 17, the upper surface of the adapter plate 18 is provided with a positioning plug plate 19, the positioning plug plate 19 is inserted with the positioning slot, and the adapter plate 18 is connected with a bracket 20 on one surface.

[0037] From the above, the device is provided with the back plate 1 with the adapter slot 17 and the bracket 20 with the adapter plate 18, the bracket 20 is installed on the back plate 1 through the clamping of the adapter plate 18 and the adapter slot 17, so that the entire demonstration device can be removed from the blackboard, which can be moved with the body and is convenient for all-round display in the classroom.

[0038] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here. The contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0039] In the description of the utility model, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. The meaning of "multiple" is two or more, unless otherwise specifically limited.

[0040] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0041] In the utility model, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0042] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the specification without conflict.

[0043] The utility model discloses the embodiment in the drawing, only relate to the structure involved in the embodiment of the disclosure, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined mutually.

[0044] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mathematical function model demonstration tool, characterized by, Include: The installation mechanism includes back plate (1) and the longitudinal coordinate line (4) and the transverse coordinate line (5) set on the surface of back plate (1), the longitudinal coordinate line (4) and the transverse coordinate line (5) are all provided with scale line (6), the back surface of back plate (1) is provided with a plurality of magnetic pieces (16); The demonstration mechanism includes the external frame plate (7) installed on the back plate (1), the external frame plate (7) is provided with a slot (8) on one surface, the transparent drawing board (9) is installed in the slot (8), and the position of the transparent drawing board (9) is adapted to the back plate (1).

2. The mathematical function model demonstration tool according to claim 1, characterized in that: The upper and lower ends of the back plate (1) are fixedly connected with side plates (2), the installation sliding groove (3) is formed in the side plate (2), the installation sliding rail (15) is arranged at the both ends of the external frame plate (7), and the installation sliding rail (15) is in sliding connection with the installation sliding groove (3).

3. The mathematical function model demonstration tool according to claim 1, characterized in that: The moving grooves (10) are formed in the both sides of the slot (8), the moving lugs (11) are arranged in the moving grooves (10), and the moving lugs (11) are in sliding connection with the moving grooves (10).

4. The mathematical function model demonstration tool according to claim 3, characterized in that: The number of the moving lugs (11) is two, the wiping cylinder (12) is connected between the two moving lugs (11), and the wiping cylinder (12) is in contact with the transparent drawing board (9).

5. The mathematical function model demonstration tool according to claim 4, characterized in that: The driving groove (13) is formed in one surface of the external frame plate (7), the driving block (14) is slidably arranged in the driving groove (13), and the driving block (14) is connected with the moving lugs (11) through the driving groove (13).

6. The mathematical function model demonstration tool according to claim 1, characterized in that: The engaging groove (17) is formed in one surface of the back plate (1), the positioning groove is formed in the inner upper surface of the engaging groove (17), the engaging plate (18) is arranged in the engaging groove (17), the engaging plate (18) is embedded in the engaging groove (17), the positioning plug-in plate (19) is arranged on the upper surface of the engaging plate (18), the positioning plug-in plate (19) is inserted into the positioning groove, and the bracket (20) is connected with one surface of the engaging plate (18).

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