CN221225684U - Combined volume teaching demonstration instrument - Google Patents

Abstract

The utility model discloses a combined volume teaching demonstration instrument, relates to the technical field of teaching instruments, and solves the problems that in the prior art, the shape and the size of the teaching demonstration instrument cannot be adjusted mostly, multiple types of models are required to be prepared during teaching, the cost is increased, and the carrying is inconvenient. The utility model comprises more than three groups of connecting units and a plurality of connecting rods which are detachably connected with the connecting units, wherein the connecting units comprise connecting pieces and a plurality of first plug connectors sleeved on the connecting pieces, the first plug connectors can move and rotate on the connecting pieces, universal heads are arranged on the connecting pieces, second plug connectors are connected on universal balls in the universal heads, the connecting rods are telescopic rods, and plug bases which are matched and plugged with the first plug connectors and the second plug connectors are arranged at two ends of the connecting rods. The utility model can be combined into solid geometric models with different shapes and sizes, has low cost, can be flexibly disassembled and assembled, is convenient to store, is beneficial to carrying, and can well meet the use requirements of teachers and students.

Description

Combined volume teaching demonstration instrument

Technical Field

The utility model relates to the technical field of teaching aids, in particular to a combined volume teaching demonstration aid.

Background

The teaching demonstration appliance is a general name of various appliances used by students to intuitively and vividly understand teaching contents and appliances used by teachers in teaching class, and is called as a teaching aid for short. The teaching aid can improve the learning interest of students, enrich the perceptual knowledge, help to form clear concepts and develop the observation capability and thinking capability of students.

Solid geometry teaching is an important content in the mathematical teaching process, and many students who contact solid geometry for the first time cannot easily imagine the solid geometry of space due to lack of space imagination, so that the solid geometry is difficult to understand, and the achievement is not ideal. And the education department sets "standard for common high school mathematics course" is emphasized in particular: the primary teaching key of solid geometry is to help students form space imagination, teachers should provide rich physical models to help students recognize structural features of space geometry, and the space geometry model plays an important role in mathematical teaching.

The teaching display tool used in the teaching process of the prior art is commonly provided with solid geometric models such as a ball stick model, a plastic model and a building block model, and most of the solid geometric models are fixed in shape and size, so that multiple models are required to be prepared in the teaching process, the cost is increased, the carrying is inconvenient, and in the model display process, students with small size possibly cannot see clearly from a platform, the teaching effect is poor, and the cost and the carrying difficulty are further increased by the model with overlarge size. In a combined solid geometry teaching instrument with the publication number of CN109686196A, a solid geometry model is used for displaying a three-dimensional image by being matched with a liquid crystal display screen, so that students can know structural characteristics of space geometry, even part of schools can conveniently understand space geometry by using holographic projection equipment, the teaching effect is improved by the equipment, the cost is high, and the teaching instrument is difficult to bear for schools with insufficient part of teaching expenses. Therefore, a teaching demonstration instrument with low cost and convenient carrying is needed, which can meet the needs of teachers and students and is convenient for children to intuitively understand space geometry.

Disclosure of utility model

In order to solve the technical problems that the shape and the size of a teaching demonstration instrument in the prior art cannot be adjusted mostly, multiple types of models are required to be prepared during teaching, the cost is increased and the carrying is inconvenient, the application provides a combined volume teaching demonstration instrument.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The utility model provides a modular volume teaching display tool, includes the connecting unit and many connecting rods that can dismantle with the connecting unit more than three group, the connecting unit includes connecting piece and a plurality of cover and establishes the first bayonet joint on the connecting piece, first bayonet joint can remove and rotate on the connecting piece, be equipped with the universal head on the connecting piece, be connected with the second bayonet joint on the universal ball in the universal head, the connecting rod is the telescopic link, the both ends of connecting rod all are equipped with the grafting seat of pegging graft with first bayonet joint and second bayonet joint cooperation.

The specific working principle of the technical scheme is as follows:

The utility model relates to a combined volume teaching display tool which can be used for mathematics solid geometry teaching, when teaching, a plurality of connecting units and a plurality of connecting rods are utilized, according to different solid geometry frames, the first plug connector and the second plug connector on the connecting piece are matched and plugged with the connecting rods on the second plug connector on the universal head, the direction and the position of the first plug connector are adjusted through rotation and movement, the direction of the second plug connector is adjusted through rotation, the directions of the connecting rods on the first plug connector and the second plug connector are respectively adjusted, the connecting rods are telescopic rods, the lengths of the connecting rods can be adjusted through telescopic adjustment, so that solid geometry models with different shapes and different sizes are combined, when students touch a solid table at early stage, the space imagination capability of the students is cultivated, the structural characteristics of the space geometry of the students are helped, the understanding difficulty of the solid geometry is reduced, and the teaching effect of the solid geometry volume teaching is improved; the utility model can also be used for students to combine by themselves, increases the practical ability and the interest, so as to excite the learning interest, further improve the understanding ability of the students and lay the foundation for the subsequent solid geometry learning. The utility model has simple structure, strong intuitiveness and low cost, can randomly combine solid geometric models with different shapes and different sizes, can be flexibly disassembled and assembled, is convenient to store, is beneficial to carrying, and can well meet the use requirements of teachers and students.

In a further technical scheme, the connecting piece is a torus or a polygonal frame.

In the scheme, the connecting piece formed by the closed ring body or the polygonal frame body moves and rotates on the connecting piece through the first plug-in connector, so that the establishment of various solid geometric models is facilitated.

In a further technical scheme, the first plug connector, the second plug connector and the plug socket are connected in a threaded mode.

In the scheme, the first plug connector, the second plug connector and the plug connector seat are connected through threads for installation and disassembly, so that the installation is firm, the installation and the disassembly are very convenient, and the use is facilitated.

In a further technical scheme, the universal head is located at the center of the connecting piece, a supporting rod is arranged on the universal head, and the universal head is connected with the connecting piece through the supporting rod.

In the scheme, the universal head is stably arranged at the center of the connecting piece through the supporting rod, so that the second plug connector can rotate at multiple angles, different angles are formed by combining the second plug connector with the first plug connector, and the diversity of establishment of the solid geometric model is increased.

In a further technical scheme, be equipped with the locking subassembly that is used for restricting the interior universal ball pivoted of universal head on the universal head, locking subassembly includes locking screw and connects the rotatory handle on locking screw, locking screw and universal head threaded connection just stretch into in the universal head with universal ball butt.

In the scheme, the locking screw is screwed by using the rotary handle to lock the rotation position of the universal ball in the universal head, namely, the rotation of the second plug connector and the connecting rod connected to the second plug connector is limited, so that the angle change during the combination of the solid geometric model is avoided, and the establishment of the solid geometric model is facilitated.

In further technical scheme, still include the stand, be equipped with three at least group's regulating unit on the stand, regulating unit can remove on the stand, be equipped with the connecting rod on the connecting piece, the connecting piece passes through the connecting rod and can dismantle the connection on regulating unit.

In the scheme, the combined solid geometric model is installed on the adjusting unit on the exhibition stand through the connecting rod on the connecting piece, so that the display is convenient.

In further technical scheme, the shape of stand is circular or rectangle, the stand includes bottom plate and a plurality of backup pads of perpendicular connection on the bottom plate, the backup pad distributes in the edge of bottom plate, adjacent all be connected with the slide rail between the backup pad, the adjusting unit movable sleeve is established on the slide rail and can follow the slide rail and remove.

In the above scheme, the adjusting units are positioned at the end point positions of the bottom surface of the assembled solid geometric model by controlling the sliding positions of the adjusting units on the sliding rail so as to be connected, and the adjusting units slide to different positions by different numbers of adjusting units.

In a further technical scheme, the adjusting unit comprises a sliding block and an adjusting rod, the sliding block is movably sleeved on the sliding rail and can move along the sliding rail, the adjusting rod penetrates through the sliding block and is in threaded connection with the sliding block, and the connecting rod is in threaded connection with one end of the adjusting rod.

In the scheme, the position of the adjusting rod is adjusted by sliding the sliding block on the sliding rail, the adjusting rod is controlled to stretch and retract on the sliding block by rotating and screwing the adjusting rod, the position of the adjusting rod is adjusted until a graph formed by connecting a connecting line of the end part of the used adjusting rod, which is close to one side of the connecting rod, is positioned on the outer side of the bottom surface of the assembled solid geometric model, and then the solid geometric model is installed on the adjusting rod.

In a further technical scheme, one end of the adjusting rod, which is far away from the connecting rod, is provided with an anti-skid handle.

In the scheme, the adjusting rod can be rotated more conveniently through the anti-slip handle, and the use is facilitated.

In a further technical scheme, the lower part of stand is equipped with the base, the rotatable installation of stand is on the base.

In the scheme, through the setting of base, can rotate on the base through control stand in the show to make things convenient for the student to observe, can realize dynamic show content in student's brain, further deepened the understanding to teaching show content.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. according to the utility model, through the combination of the plurality of connecting units and the plurality of connecting rods, the connecting rods can be telescopically adjusted in length, and the three-dimensional geometric models with different shapes and sizes can be formed by combining the connecting rods according to different three-dimensional geometric frames, so that the three-dimensional geometric model has the advantages of strong observability, improved teaching effect of three-dimensional geometric teaching, simple structure, low cost, flexible disassembly and assembly, convenience in storage, portability and capability of well meeting the use requirements of teachers and students.

2. The utility model can cultivate the space imagination capability of students, reduce the understanding difficulty of solid geometry, can be used as a learning tool for the students to combine by themselves, increase the practical ability and the interestingness, so as to excite the learning interest, further improve the understanding capability of the students and lay the foundation for the subsequent solid geometry learning.

3. According to the utility model, the solid geometric model is conveniently installed on the exhibition stand for exhibition through the arrangement of the exhibition stand and the base, and the exhibition stand is controlled to rotate on the base, so that the observation of students is facilitated, dynamic exhibition contents can be realized in the brains of the students, and the understanding of teaching exhibition contents is further deepened.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the application, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged schematic view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of the structure of the connection unit of the present utility model;

fig. 4 is a schematic structural view of the display stand of the present utility model.

Reference numerals: 1-connecting rod, 2-connecting piece, 3-first bayonet joint, 4-universal head, 5-second bayonet joint, 6-plug seat, 7-bracing piece, 8-locking screw, 9-rotation handle, 10-stand, 11-connecting rod, 12-backup pad, 13-slide rail, 14-slider, 15-regulation pole, 16-anti-skidding handle, 17-base.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which a product of the application is conventionally put in use, it is merely for convenience of describing the present application and simplifying the description, and it is not indicated or implied that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like in the description of the present application, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.

Furthermore, the terms "horizontal," "vertical," and the like in the description of the present application, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The present utility model is described in detail below with reference to fig. 1-4.

Example 1:

This embodiment provides a combination formula volume teaching show tool, referring to fig. 1, including the connecting unit and a plurality of connecting rod 1 of detachable connection with the connecting unit more than three groups, referring to fig. 2 and 3 (only drawing the first bayonet joint in the use in fig. 2), the connecting unit includes connecting piece 2 and a plurality of cover establish the first bayonet joint 3 on connecting piece 2, connecting piece 2 is the torus, first bayonet joint 3 can remove and rotate on connecting piece 2, be equipped with universal head 4 on the connecting piece 2, be connected with second bayonet joint 5 on the universal ball in the universal head 4, connecting rod 1 is the telescopic link, connecting rod 1's both ends all are equipped with socket 6 that can with first bayonet joint 3 and second bayonet joint 5 threaded connection.

Specifically, the two ends of the connecting rod 1 are connected with the first connectors 3 on two sides or the second connectors 5 on two sides by using the connectors 6 on two ends of the connecting rod 1, and the directions of the connecting rod 1 on the first connectors 3 and the second connectors 5 on the universal head 4 are respectively adjusted by moving and rotating the first connectors 3 on the connecting piece 2 and rotating the second connectors 5 on the universal head 4, and the connecting rod 1 can be telescopically adjusted to form solid geometric models with different shapes and different sizes by means of, for example: when the cube is combined into a cube, according to the solid geometry frame of the cube, eight groups of connecting units and twelve connecting rods 1 are needed, the top surface and the bottom surface are respectively combined by four groups of connecting units and four connecting rods 1 through connection of the plug sockets 6 at the two ends of the connecting rods 1 and the first plug connectors 3, wherein the top surface and the bottom surface are oppositely arranged, namely, the second plug connectors 5 in the top surface face the bottom surface, the second plug connectors 5 in the bottom surface face the top surface, and then the remaining four connecting rods 1 are respectively connected with the second plug connectors 5 at the two sides of the top surface and the top surface, so that the solid geometry model of the cube is assembled.

In another embodiment, the connector 2 is a polygonal frame, for example: triangle frame, rectangle frame and regular hexagon frame.

In this embodiment, referring to fig. 3, the universal head 4 is located at the center of the connecting piece 2, one side of the universal head 4 is provided with a supporting rod 7, the universal head 4 is connected with the connecting piece 2 through the supporting rod 7, a locking component for limiting the rotation of the universal ball in the universal head 4 is arranged on the universal head 4, the locking component comprises a locking screw 8 and a rotating handle 9 connected to the locking screw 8, and the locking screw 8 is in threaded connection with the universal head 4 and extends into the universal head 4 to be in butt joint with the universal ball.

Specifically, the locking screw rod 8 abuts against the universal ball in the universal head 4, so that the rotation position of the universal ball in the universal head 4 is locked, namely, the rotation of the second plug-in connector 5 and the connecting rod 1 connected to the second plug-in connector 5 is limited, the angle change during the combination of the solid geometric model is avoided, and the establishment of the solid geometric model is facilitated.

The utility model is worth to explain, not only can show and use when the teacher gives lessons, can also be used for students to combine by oneself, increases the ability of working, improves interestingness, in order to excite learning interest, further improves students' understanding ability, lay the foundation for the study of follow-up solid geometry.

Example 2:

The embodiment is obtained by continuing to optimize on the basis of embodiment 1, in the embodiment, referring to fig. 1 and 4, the device further comprises a display stand 10, four groups of adjusting units are arranged on the display stand 10, the adjusting units can move on the display stand 10, a connecting rod 11 is arranged on a connecting piece 2, and the connecting piece 2 is detachably connected to the adjusting units through the connecting rod 11.

Specifically, each group of adjusting units can be provided with a group of connecting units, and the connecting units are arranged on the adjusting units through the connecting rods 11 on the connecting pieces 2 so as to install the combined solid geometric model on the exhibition stand 10, thereby being convenient for exhibition.

In this embodiment, referring to fig. 4, the shape of the stand 10 is circular, the stand 10 includes a bottom plate and four support plates 12 vertically connected to the bottom plate, the support plates 12 are distributed at the edges of the bottom plate, sliding rails 13 are connected between adjacent support plates 12, that is, the number of the sliding rails 13 is four, and four adjusting units are respectively movably sleeved on the four sliding rails 13 and can move along the sliding rails 13.

Specifically, the adjusting unit is controlled to move on the sliding rail 13, so that the adjusting unit can connect the bottom surfaces of the solid geometric models with different shapes to finish the installation of the solid geometric models.

It should be noted that the number of the adjusting units can be adjusted according to the shape of the bottom surface of the learned solid geometric model, and is usually a graph with three to eight sides, so that the number of the adjusting units is optimally designed to be eight. In another embodiment, two adjusting units are respectively sleeved on each sliding rail 13, the number of the adjusting units is eight in total, and the corresponding number of the adjusting units are selected for combination according to the bottom surface shape of the solid geometric model.

In this embodiment, referring to fig. 4, the adjusting unit includes a slider 14 and an adjusting rod 15, the slider 14 is movably sleeved on the sliding rail 13 and can move along the sliding rail 13, the adjusting rod 15 penetrates through the slider 14 and is in threaded connection with the slider 14, the connecting rod 11 is in threaded connection with one end of the adjusting rod 15, and an anti-slip handle 16 is arranged at one end of the adjusting rod 15 far away from the connecting rod 11.

Specifically, the position of the adjusting rod 15 is adjusted by sliding the sliding block 14 on the sliding rail 13, the adjusting rod 15 is screwed by rotating the anti-slip handle 16, the adjusting rod 15 is controlled to stretch and retract on the sliding block 14, the position of the adjusting rod 15 is adjusted until a graph formed by connecting a line of one side end part of the used adjusting rod 15 close to the connecting rod 11 is positioned on the outer side of the bottom surface of the assembled solid geometric model, and then the solid geometric model is installed on the adjusting rod 15 for displaying and teaching conveniently.

Example 3:

This embodiment is obtained by continuing to optimize on the basis of embodiment 2, in this embodiment, referring to fig. 1, a base 17 is provided below the stand 10, and the stand 10 is rotatably mounted on the base 17.

Specifically, through the setting of base 17, can rotate on base 17 through control stand 10 in the time of the show to make things convenient for the student to observe, can realize dynamic show content in student's brain, further deepened the understanding to the teaching show content.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a combination formula volume teaching show apparatus, its characterized in that, connecting rod (1) including three more sets of connecting unit and many and connecting unit detachable connection, connecting unit includes connecting piece (2) and a plurality of cover establish first bayonet joint (3) on connecting piece (2), first bayonet joint (3) can remove and rotate on connecting piece (2), be equipped with universal joint (4) on connecting piece (2), be connected with second bayonet joint (5) on the universal ball in universal joint (4), connecting rod (1) are the telescopic link, the both ends of connecting rod (1) all are equipped with socket (6) of pegging graft with first bayonet joint (3) and second bayonet joint (5) cooperation.

2. A combined type volume teaching demonstration instrument according to claim 1 characterized in that the connecting piece (2) is a torus or a polygonal frame.

3. The combined type volume teaching demonstration instrument according to claim 1, wherein the first plug connector (3), the second plug connector (5) and the plug socket (6) are connected in a threaded mode.

4. The combined type volume teaching demonstration instrument according to claim 1, wherein the universal head (4) is located at the center of the connecting piece (2), a supporting rod (7) is arranged on the universal head (4), and the universal head (4) is connected with the connecting piece (2) through the supporting rod (7).

5. A combined volume teaching demonstration instrument according to any one of claims 1-4, characterized in that the universal head (4) is provided with a locking component for limiting the rotation of the universal ball in the universal head (4), the locking component comprises a locking screw (8) and a rotary handle (9) connected to the locking screw (8), and the locking screw (8) is in threaded connection with the universal head (4) and extends into the universal head (4) to be abutted with the universal ball.

6. A combined volume teaching demonstration aid according to any one of claims 1-4, further comprising a stand (10), wherein at least three groups of adjusting units are arranged on the stand (10), the adjusting units can move on the stand (10), connecting rods (11) are arranged on the connecting pieces (2), and the connecting pieces (2) are detachably connected to the adjusting units through the connecting rods (11).

7. The combined volume teaching demonstration instrument according to claim 6, wherein the exhibition stand (10) is circular or rectangular, the exhibition stand (10) comprises a bottom plate and a plurality of support plates (12) vertically connected to the bottom plate, the support plates (12) are distributed at the edge of the bottom plate, sliding rails (13) are connected between adjacent support plates (12), and the adjusting unit is movably sleeved on the sliding rails (13) and can move along the sliding rails (13).

8. The combined volume teaching demonstration instrument according to claim 7, wherein the adjusting unit comprises a sliding block (14) and an adjusting rod (15), the sliding block (14) is movably sleeved on the sliding rail (13) and can move along the sliding rail (13), the adjusting rod (15) penetrates through the sliding block (14) and is in threaded connection with the sliding block (14), and the connecting rod (11) is in threaded connection with one end of the adjusting rod (15).

9. A combined type volume teaching demonstration instrument according to claim 8 characterized in that the end of the adjusting rod (15) far away from the connecting rod (11) is provided with an anti-slip handle (16).

10. A combined volume teaching demonstration aid according to claim 6 characterized in that a base (17) is arranged below the exhibition stand (10), and the exhibition stand (10) is rotatably mounted on the base (17).