CN220020465U

CN220020465U - Demonstration sand table

Info

Publication number: CN220020465U
Application number: CN202320400127.7U
Authority: CN
Inventors: 郭辉辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-06
Filing date: 2023-03-06
Publication date: 2023-11-14
Anticipated expiration: 2033-03-06

Abstract

The utility model discloses a demonstration sand table which comprises a fixed base, universal wheels, a supporting table plate, a transparent housing, a fixed bottom plate, a fixed demonstration model, a supporting adjustment structure and an auxiliary fixing structure, wherein the auxiliary fixing structure is arranged between the supporting table plate and the fixed bottom plate.

Description

Demonstration sand table

Technical Field

The utility model relates to the field of sand tables, in particular to a demonstration sand table.

Background

The sand table is a model piled by silt, chess and other materials according to a topography map, aerial photo or field topography and a certain proportion relation, and in the history teaching work, the history events need to be displayed, and the sand table is usually used for displaying auxiliary teaching work.

In the prior patent document CN208969974U, a sand table for teaching is disclosed, although the sand table can be used for demonstration, the demonstration position is inconvenient to adjust, students in the back row are difficult to watch during teaching, and the common sand table can only be demonstrated in the horizontal direction, so that the demonstration range is smaller, and the students are inconvenient to watch when a plurality of people are involved;

that is, the prior art has the following technical problem that although the common sand table can be used for demonstration, the demonstration position is inconvenient to adjust, students in the back row are difficult to watch during education, and the common sand table can only be used for demonstration in the horizontal direction, so that the demonstration range is smaller, and the demonstration is inconvenient for a plurality of people. Therefore, a demonstration sand table is proposed for the above problems.

Disclosure of Invention

The demonstration sand table is used for solving the problems that although a common sand table in the prior art can be used for demonstration, the demonstration position is inconvenient to adjust, students in the back row are difficult to watch during education, and the common sand table can only be demonstrated in the horizontal direction, so that the demonstration range is smaller and the students are inconvenient to watch when a plurality of people are involved.

According to one aspect of the present utility model, there is provided a demonstration sand table comprising a fixed base, universal wheels, a support platen, a transparent cover, a fixed base plate, a fixed demonstration model, a support adjustment structure and an auxiliary fixing structure;

the utility model is characterized in that universal wheels are fixedly arranged at four corners of the bottom surface of the fixed base, a supporting and adjusting structure is arranged between the fixed base and the supporting bedplate, a transparent housing is fixedly connected to the upper surface of the supporting bedplate, a fixed demonstration model is fixedly arranged at the upper surface of the fixed baseplate, and an auxiliary fixing structure is arranged between the supporting bedplate and the fixed baseplate.

Further, the support adjusting structure comprises a rectangular supporting upright post, a movable rectangular rod, a fixed block, a threaded rod, a servo motor and a rotating block, wherein an inner cavity is formed in the rectangular supporting upright post, the movable rectangular rod is connected in the inner cavity of the rectangular supporting upright post in a sliding mode, an inner cavity is formed in the movable rectangular rod, and the fixed block is fixedly connected in the inner cavity of the movable rectangular rod.

Further, the inner chamber diapire department rotation of rectangle support stand is connected with the one end of threaded rod, the other end of threaded rod extends to the inner chamber of removal rectangle pole in, threaded rod runs through the fixed block and with the fixed block between screw thread fit.

Further, an installation cavity is formed in the bottom side position of the rectangular supporting upright post, a servo motor is fixedly installed in the installation cavity of the rectangular supporting upright post, and the tail end of an output shaft of the servo motor is fixedly connected with the bottom end of the threaded rod.

Further, the support adjusting structure has two groups, two the top department of support adjusting structure all is connected with the dwang, two the top of support adjusting structure all rotates through the dwang with the bottom surface of support platen and is connected, one of them support adjusting structure's bottom and unable adjustment base's last fixed surface is connected, another support adjusting structure's bottom is provided with the dwang, support adjusting structure's bottom is through rotating between dwang and the unable adjustment base and be connected.

Further, the auxiliary fixing structure comprises a connecting plugboard, a limiting sliding block, a round head pin and a connecting spring, wherein the connecting plugboard is fixedly arranged at the bottom surface of the fixing bottom plate, a connecting slot is formed in the supporting platen, the connecting plugboard is slidably inserted into the connecting slot of the supporting platen, one end of the connecting plugboard is arc-shaped, and a round groove is formed in the side wall of the connecting plugboard.

Further, an inner cavity is formed in the supporting platen, a limiting slide block is connected in the inner cavity of the supporting platen in a sliding mode, a round head pin is fixedly connected to one side wall of the limiting slide block, one end of the round head pin extends to a round groove of the connecting plugboard, a connecting spring is fixedly connected to the other side wall of the limiting slide block, and the connecting spring is in a compressed state.

According to the embodiment of the utility model, the fixed demonstration model can be fixed through the auxiliary fixing structure, the fixed demonstration model can be conveniently taken down from the supporting platen, the fixed demonstration model can be conveniently taken down, replaced, maintained and the like, and the device has a good use effect.

Drawings

In order to more clearly illustrate the embodiments of the utility model 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 utility model, 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 perspective view of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of an embodiment of the present utility model;

fig. 3 is a schematic view of a partial enlarged structure at a of fig. 2 according to an embodiment of the present utility model.

In the figure: 1. a fixed base; 2. a universal wheel; 3. rectangular support posts; 4. moving the rectangular bar; 5. a fixed block; 6. a threaded rod; 7. a servo motor; 8. a rotating block; 9. a support platen; 10. a transparent cover; 11. a fixed bottom plate; 12. fixing a demonstration model; 13. a connecting plugboard; 14. a limit sliding block; 15. round head pin; 16. and a connecting spring.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-3, a demonstration sand table comprises a fixed base 1, universal wheels 2, a supporting bedplate 9, a transparent housing 10, a fixed bottom plate 11, a fixed demonstration model 12, a supporting and adjusting structure and an auxiliary fixing structure;

the universal wheels 2 are fixedly arranged at four corners of the bottom surface of the fixed base 1, the supporting adjusting structure is arranged between the fixed base 1 and the supporting bedplate 9, the transparent housing 10 is fixedly connected to the upper surface of the supporting bedplate 9, the fixed demonstration model 12 is fixedly arranged at the upper surface of the fixed bedplate 11, the auxiliary fixing structure is arranged between the supporting bedplate 9 and the fixed bedplate 11, the auxiliary demonstration model 12 can be fixed through the auxiliary fixing structure, the fixed demonstration model 12 can be conveniently taken off from the supporting bedplate 9, the fixed demonstration model 12 can be conveniently taken off, replaced, maintained and the like, the device has a good use effect, the supporting demonstration model 9 is convenient to adjust the overall height of the device through the supporting adjusting structure, the supporting bedplate 9 can be obliquely demonstrated, the demonstration model is convenient to watch by students, the students can fully watch according to the number of viewers, and the auxiliary demonstration model is suitable for popularization and use.

The support adjusting structure comprises a rectangular support upright post 3, a movable rectangular rod 4, a fixed block 5, a threaded rod 6, a servo motor 7 and a rotating block 8, wherein an inner cavity is formed in the rectangular support upright post 3, the movable rectangular rod 4 is connected in the inner cavity of the rectangular support upright post 3 in a sliding manner, an inner cavity is formed in the movable rectangular rod 4, and the fixed block 5 is fixedly connected in the inner cavity of the movable rectangular rod 4; one end of a threaded rod 6 is rotatably connected to the bottom wall of the inner cavity of the rectangular support upright post 3, the other end of the threaded rod 6 extends into the inner cavity of the movable rectangular rod 4, and the threaded rod 6 penetrates through the fixed block 5 and is in threaded fit with the fixed block 5; an installation cavity is formed in the bottom side position of the rectangular support upright post 3, a servo motor 7 is fixedly installed in the installation cavity of the rectangular support upright post 3, the tail end of an output shaft of the servo motor 7 is fixedly connected with the bottom end of a threaded rod 6, the threaded rod 6 can be driven to rotate through the work of the servo motor 7, the fixed block 5 can be driven to move through the rotation of the threaded rod 6, and then the movable rectangular rod 4 is driven to move, so that the whole length can be adjusted; the two support adjusting structures are respectively connected with a rotating block 8 at the top ends of the two support adjusting structures, the top ends of the two support adjusting structures are respectively connected with the bottom surface of a support bedplate 9 through the rotating blocks 8, one bottom end of the support adjusting structure is fixedly connected with the upper surface of the fixed base 1, the other bottom end of the support adjusting structure is provided with the rotating blocks 8, the bottom ends of the support adjusting structures are respectively connected with the fixed base 1 through the rotating blocks 8 in a rotating way, the whole height of the device can be adjusted through the length adjustment of the two support adjusting structures, one support adjusting structure can be extended, the other support adjusting structure is contracted, one end of the support bedplate 9 can be inclined, the device can be used for inclined display, sand table models can be fully displayed, and people in the rear can conveniently watch the sand table models; the auxiliary fixing structure comprises a connecting plugboard 13, a limiting slide block 14, a round head pin 15 and a connecting spring 16, wherein the connecting plugboard 13 is fixedly arranged at the bottom surface of the fixed bottom plate 11, a connecting slot is arranged at the supporting platen 9, the connecting plugboard 13 is slidably inserted into the connecting slot of the supporting platen 9, one end of the connecting plugboard 13 is arc-shaped, and a circular groove is formed in the side wall of the connecting plugboard 13; the inside of supporting platen 9 is provided with the inner chamber, sliding connection has spacing slider 14 in the inner chamber of supporting platen 9, one side lateral wall department fixedly connected with button head pin 15 of spacing slider 14, the one end of button head pin 15 extends to the circular recess department of connection picture peg 13, the opposite side lateral wall department fixedly connected with coupling spring 16 of spacing slider 14, coupling spring 16 is in under the compressive state, can make button head pin 15 support the circular recess department at connection picture peg 13 through coupling spring 16's compression elasticity effect, and then makes connection picture peg 13 can fix, and then makes PMKD 11 can fix, and then makes fixed demonstration model 12 fixed, when taking off, only needs to use the power pulling PMKD 11 for PMKD 11 drives connection picture peg 13 and removes, can make connection picture peg 13 break away from supporting platen 9, and then can make PMKD 11 take off, conveniently changes fixed demonstration model 12.

The utility model has the advantages that:

1. the utility model has reasonable structure and convenient use, the fixed demonstration model can be fixed through the auxiliary fixing structure, the fixed demonstration model can be conveniently taken down from the supporting bedplate, the work such as taking down, replacing and maintaining can be conveniently carried out, and the use effect is good;

2. the utility model has the supporting and adjusting structure, the whole height of the device can be conveniently adjusted through the supporting and adjusting structure, the supporting bedplate can be obliquely displayed, the viewing by students on duty is convenient, the full display viewing can be carried out according to the number of viewers, and the device is suitable for popularization and use.

The circuit, the electronic components and the modules are all in the prior art, and can be completely realized by a person skilled in the art, and needless to say, the protection of the utility model does not relate to the improvement of software and a method.

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

Claims

1. A demonstration sand table, characterized in that: the device comprises a fixed base (1), universal wheels (2), a supporting bedplate (9), a transparent housing (10), a fixed bottom plate (11), a fixed demonstration model (12), a supporting and adjusting structure and an auxiliary fixed structure;

the universal wheels (2) are fixedly arranged at four corners of the bottom surface of the fixed base (1), a supporting and adjusting structure is arranged between the fixed base (1) and the supporting bedplate (9), a transparent housing (10) is fixedly connected to the upper surface of the supporting bedplate (9), a fixed demonstration model (12) is fixedly arranged at the upper surface of the fixed baseplate (11), and an auxiliary fixing structure is arranged between the supporting bedplate (9) and the fixed baseplate (11).

2. A presentation sand table as claimed in claim 1, wherein: the supporting and adjusting structure comprises a rectangular supporting upright post (3), a movable rectangular rod (4), a fixed block (5), a threaded rod (6), a servo motor (7) and a rotating block (8), wherein an inner cavity is formed in the rectangular supporting upright post (3), the movable rectangular rod (4) is connected in the inner cavity of the rectangular supporting upright post (3) in a sliding mode, an inner cavity is formed in the movable rectangular rod (4), and the fixed block (5) is fixedly connected in the inner cavity of the movable rectangular rod (4).

3. A presentation sand table as claimed in claim 2, wherein: the rectangular support column is characterized in that one end of a threaded rod (6) is connected to the bottom wall of the inner cavity of the rectangular support column (3) in a rotating mode, the other end of the threaded rod (6) extends into the inner cavity of the movable rectangular rod (4), and the threaded rod (6) penetrates through the fixed block (5) and is in threaded fit with the fixed block (5).

4. A presentation sand table as claimed in claim 2, wherein: the installation cavity is formed in the position of the bottom side of the rectangular supporting upright post (3), a servo motor (7) is fixedly installed in the installation cavity of the rectangular supporting upright post (3), and the tail end of an output shaft of the servo motor (7) is fixedly connected with the bottom end of the threaded rod (6).

5. A presentation sand table as claimed in claim 1, wherein: the support adjusting structure is provided with two groups, two the top ends of the support adjusting structure are connected with rotating blocks (8), two the top ends of the support adjusting structure are connected with the bottom surface of a support bedplate (9) in a rotating mode through the rotating blocks (8), one of the support adjusting structure is fixedly connected with the upper surface of a fixed base (1), the other support adjusting structure is provided with the rotating blocks (8), and the bottom end of the support adjusting structure is connected with the fixed base (1) in a rotating mode through the rotating blocks (8).

6. A presentation sand table as claimed in claim 5, wherein: the auxiliary fixing structure comprises a connecting plugboard (13), a limiting sliding block (14), a round head pin (15) and a connecting spring (16), wherein the connecting plugboard (13) is fixedly arranged at the bottom surface of the fixing bottom board (11), a connecting slot is formed in the supporting platen (9), the connecting plugboard (13) is connected in the connecting slot of the supporting platen (9) in a sliding manner, one end of the connecting plugboard (13) is arc-shaped, and a circular groove is formed in the side wall of the connecting plugboard (13).

7. A presentation sand table as claimed in claim 5, wherein: the inside of supporting platen (9) is provided with the inner chamber, sliding connection has spacing slider (14) in the inner chamber of supporting platen (9), one side lateral wall department fixedly connected with button head pin (15) of spacing slider (14), the one end of button head pin (15) extends to the circular recess department of connection picture peg (13), the opposite side lateral wall department fixedly connected with coupling spring (16) of spacing slider (14), coupling spring (16) are in under the compression.