阅读说明：本技术 一种教学用沙盘装置 (Sand table device for teaching ) 是由 杨健文 王翠 于 2021-08-10 设计创作，主要内容包括：本发明公开了一种教学用沙盘装置,包括沙盘本体、控制装置、储物装置和若干电磁装置,各电磁装置设于沙盘本体上,并可分别通电产生磁力；控制装置用于控制各电磁装置的通断电；储物装置设于沙盘本体上,用于储存物料并能够将其储存的物料散落于沙盘本体上,以使散落于沙盘本体上的物料被通电的电磁装置磁吸,以实现对产品和资产的流动进行模拟的目的,实现对财务管理中知识点的有机结合效果,通过实体展示进行教学,使学生更加直观的观看学习,提高学生学习的积极性。(The invention discloses a sand table device for teaching, which comprises a sand table body, a control device, a storage device and a plurality of electromagnetic devices, wherein each electromagnetic device is arranged on the sand table body and can be respectively electrified to generate magnetic force; the control device is used for controlling the on-off of each electromagnetic device; on storage device located the sand table body for store the material and can scatter on the sand table body with its material of storing, so that scatter and inhale by the electromagnetic means magnetism of circular telegram on the sand table body, with the realization carries out the purpose of simulating to the flow of product and asset, realize the organic combination effect to knowledge point in the financial management, teach through the entity show, make the student more audio-visual watch study, improve student's study enthusiasm.)

1. A sand table device for teaching, comprising:

a sand table body (1);

the electromagnetic devices (2) are arranged on the sand table body (1) and can be respectively electrified to generate magnetic force;

the control device is used for controlling the on-off of each electromagnetic device (2);

and the storage device (3) is arranged on the sand table body (1) and used for storing materials and scattering the stored materials on the sand table body (1).

2. A teaching sand table apparatus as claimed in claim 1, wherein: the storage device is characterized by further comprising a vibrating device (4), wherein the vibrating device (4) is used for vibrating the materials scattered from the storage device (3).

3. A sand table apparatus for teaching as claimed in claim 2, wherein: the vibrating device (4) comprises dispersing strips (40) and a driving device, the dispersing strips (40) are elastically arranged on the sand table body (1) and used for bearing materials scattered from the storage device (3), and the driving device is used for driving the dispersing strips (40) to vibrate.

4. A teaching sand table apparatus as claimed in claim 1, wherein: the storage device (3) comprises a rotating device (30), the rotating device (30) is rotatably arranged on the sand table body (1) and is provided with a storage cavity for storing materials, and a blanking port communicated with the storage cavity is further arranged on the rotating device (30);

movably be provided with the shielding piece that is used for sheltering from it on the blanking mouth, the blanking mouth follows rotary device (30) rotate to face electromagnetic device (2) and the shielding piece is putd aside under the state of blanking mouth, the material in the storage chamber is followed the blanking mouth scatters in on sand table body (1).

5. A teaching sand table apparatus as claimed in claim 4, wherein: still include resilient means, resilient means locates in the storage chamber, be used for with shielding piece elastic connection, so that the shielding piece is in resilient means's effect is down to remove in the storage chamber.

6. A sand table device for teaching as claimed in claim 5, wherein: the storage device (3) further comprises a placing frame (31), the placing frame (31) is fixedly arranged on the sand table body (1), the rotating device (30) is rotatably arranged in the placing frame (31), and a material passing opening (310) corresponding to the material dropping opening is formed in the placing frame (31);

the placing frame (31) is further provided with a pressing device, and the pressing device is used for pressing the blanking opening to the position of the material passing opening (310) in a pressing mode, so that the shielding piece can automatically move towards the material storage cavity under the action of the elastic device.

7. A teaching sand table apparatus as claimed in claim 6, wherein: the pressing device comprises a pressing part (312), the pressing part (312) is arranged on the placing frame (31), a groove (3030) is formed in the rotating device (30) along the circumferential direction of the rotating device, an arc-shaped surface (3120) is arranged on one side of the pressing part (312), and the arc-shaped surface (3120) is located in the groove (3030), so that the shielding part can automatically move towards the material storage cavity under the action of the arc-shaped surface (3120) when rotating to the position of the material passing hole (310) along with the rotating device (30).

8. A teaching sand table apparatus as claimed in claim 4, wherein: the locking device (5) is further included, and the locking device (5) is used for locking the rotating angle of the rotating device (30).

9. A teaching sand table apparatus as claimed in claim 1, wherein: the sand table is characterized by further comprising a material receiving device (6), wherein the material receiving device (6) is arranged on the sand table body (1) and is opposite to the material storage device (3), and the material receiving device (6) is used for receiving materials falling from the sand table body (1).

10. A teaching sand table apparatus as claimed in claim 1, wherein: still including shallow body (10), sand table body (1) rotationally set up in on shallow body (10) to support it through portable setting in strutting arrangement on shallow body (10), so that the use angle of sand table body (1) is adjustable.

Technical Field

The invention relates to the technical field of teaching aids, in particular to a sand table device for teaching.

Background

Financial management is the management of the acquisition (investment) of assets, the financing (financing) and the amount of cash in operation (operating funds), and the allocation of profits, with a certain overall objective. Financial management is a component of enterprise management, and is an economic management work for organizing enterprise financial activities and processing financial relations according to financial regulation and financial management principles. In general, financial management is an economic management task for organizing financial activities of a business and handling financial relationships. However, most of the current financial management professional teaching is on a single project or single course, the teaching method is simple and old in concept, the teaching purpose cannot be visually shown, the flow of products and assets cannot be simulated, and the organic combination of knowledge points in financial management cannot be realized, so that the students cannot be visually known, and the learning enthusiasm of the students is influenced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a sand table device for teaching, which can simulate the flow of products and assets, realize the organic combination effect of knowledge points in financial management, and can be used for teaching through entity display, so that students can watch and learn more intuitively, and the learning enthusiasm of the students is improved.

The purpose of the invention is realized by adopting the following technical scheme:

a sand table apparatus for teaching comprising:

a sand table body;

the electromagnetic devices are arranged on the sand table body and can be respectively electrified to generate magnetic force;

the control device is used for controlling the on-off of each electromagnetic device;

and the storage device is arranged on the sand table body and used for storing materials and scattering the stored materials on the sand table body.

Furthermore, the storage device comprises a rotating device, the rotating device is rotatably arranged on the sand table body and is provided with a storage cavity for storing materials, and the rotating device is also provided with a blanking port communicated with the storage cavity;

movably on the blanking mouth be provided with the shielding piece that is used for sheltering from it, the blanking mouth follows rotary device rotates to the face electromagnetic device is in under the state that the shielding piece putd aside the blanking mouth, the material in the storage chamber is followed the blanking mouth scatters on the sand table body.

Furthermore, the invention also comprises an elastic device which is arranged in the material storage cavity and is used for being elastically connected with the shielding piece, so that the shielding piece moves towards the material storage cavity under the action of the elastic device.

Furthermore, the storage device also comprises a placing frame, the placing frame is fixedly arranged on the sand table body, the rotating device is rotatably arranged in the placing frame, and the placing frame is also provided with a material passing hole which can correspond to the material dropping hole; the placing frame is further provided with a pressing device, the pressing device is arranged on the placing frame and used for pressing the blanking port to the position of the material passing port in a pressing mode, and therefore the shielding piece is automatically moved towards the material storage cavity under the action of the elastic device.

Furthermore, the pressing device comprises a pressing part, the pressing part is arranged on the placing frame, a groove is formed in the rotating device along the circumferential direction of the rotating device, an arc-shaped surface is arranged on one side of the pressing part and is located in the groove, and therefore the shielding part can automatically move towards the material storage cavity under the action of the arc-shaped surface when rotating to the position of the material passing opening along with the rotating device.

Furthermore, the invention also comprises a locking device which is used for locking the rotation angle of the rotating device.

Furthermore, the invention also comprises a vibration device which is used for vibrating the materials scattered from the storage device.

Furthermore, the vibrating device comprises a dispersing strip and a driving device, the dispersing strip is elastically arranged on the sand table body and used for receiving the materials scattered from the storage device, and the driving device is used for driving the dispersing strip to vibrate.

The sand table further comprises a material receiving device, the material receiving device is arranged on the sand table body and is opposite to the storage device, and the material receiving device is used for receiving materials falling from the sand table body.

Furthermore, the sand table trolley further comprises a trolley body, wherein the sand table body is rotatably arranged on the trolley body and is supported by a supporting device movably arranged on the trolley body, so that the use angle of the sand table body is adjustable.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the materials stored in the storage device are scattered on the sand table body through the storage device, and the control device is utilized to control part of the electromagnetic devices to be electrified according to the teaching requirement, so that the electrified electromagnetic devices and the materials scattered on the sand table body are subjected to magnetic attraction, and the flow simulation of products and assets can be effectively and visually carried out, thereby realizing the organic combination effect of knowledge points in financial management, further realizing the effect of physically displaying teaching, enabling students to more visually watch and learn, and improving the learning enthusiasm of the students.

Drawings

FIG. 1 is a schematic view of the internal cross-section of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is an exploded view of the sand table, the partition and the transparent frame according to the embodiment of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;

FIG. 5 is an enlarged schematic view of the structure at B in FIG. 3;

FIG. 6 is a schematic diagram of a rotary device according to an embodiment of the present invention;

FIG. 7 is a schematic view of a storage device according to an embodiment of the present invention;

FIG. 8 is an exploded view of a storage device according to an embodiment of the present invention;

FIG. 9 is an enlarged view of the structure at C in FIG. 8;

FIG. 10 is an enlarged view of the structure at D in FIG. 8;

FIG. 11 is a schematic view of another angular structure of the sand table apparatus of the present invention;

FIG. 12 is a schematic structural view of a cart body according to an embodiment of the present invention;

FIG. 13 is an enlarged view of the structure of FIG. 12 at E;

FIG. 14 is a schematic view of another embodiment of the present invention relating to the angle structure of the cart body;

FIG. 15 is an enlarged view of the structure of FIG. 14 at F;

fig. 16 is an enlarged schematic view of the structure at G in fig. 14.

In the figure: 1. a sand table body; 10. a cart body; 100. a clamping piece; 1001. a slider; 101. a sliding groove; 102. positioning the push rod; 1020. an elastic bolt; 1021. positioning holes; 103. a fixing frame; 1030. a support wheel; 104. a limiting member; 105. a limiting member; 106. a fixed seat; 1060. a limiting rod; 10601. a second limit spring; 1061. pressing a pipe; 1062. a top rod; 107. a linkage rod; 108. a slide bar; 109. a support frame; 1090. a linkage bolt; 1091. a first limit spring; 1092. a linkage piece; 1093. a support block; 11. a partition plate; 110. a transparent frame; 1101. a connecting member; 11010. a sliding wheel; 12. a sliding frame; 2. an electromagnetic device; 3. a storage device; 30. a rotating device; 301. a first rotary cylinder; 3010. rotating the key; 3011. a first blanking port; 30110. a first masking strip; 302. a second rotary cylinder; 3020. rotating the handle; 3021. a second blanking port; 30210. a second masking strip; 303. an adjustment wheel; 3030. a groove; 3031. a recessed portion; 304. resetting the frame; 305. a telescoping member; 306. a return spring; 31. placing the frame; 310. a material passing port; 311. a blocking member; 312. a pressing member; 3120. an arc-shaped surface; 313. an installation port; 4. a vibrating device; 40. dispersing the strips; 41. a vibration motor; 42. an elastic component; 5. a locking device; 50. an arc-shaped positioning groove; 51. a fastener; 6. a material receiving device; 7. an adjusting tube; 70. a first support member; 72. a second support member.

Detailed Description

The present invention will be described with reference to the accompanying drawings and the detailed description, and it should be noted that, in the following description, various embodiments or technical features may be arbitrarily combined to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The implementation mode is as follows:

as shown in fig. 1-16, the present invention provides a sand table device for teaching, comprising a sand table body 1, a plurality of electromagnetic devices 2, a control device and a storage device 3, wherein each electromagnetic device 2 is arranged on the sand table body 1 and can be respectively electrified to generate magnetic force; the control device is used for controlling the on-off of each electromagnetic device 2; the storage device 3 is arranged on the sand table body 1 and used for storing materials and scattering the stored materials on the sand table body 1. That is, it can be understood that the materials stored in the storage device 3 are scattered on the sand table body 1, the control device is used for controlling the electrification of the electromagnetic device 2 according to the teaching requirement, so that the electrified electromagnetic device 2 and the materials scattered on the sand table body 1 are magnetically attracted, the flowing simulation of products and assets can be effectively and visually carried out, the organic combination effect of knowledge points in financial management is realized, the effect of entity display teaching is further realized, students can more visually watch and learn, and the enthusiasm of students is improved.

As an application scene, fix sand table body 1 at the angle that the student of being convenient for observed, electromagnetic means 2 chooses for use the last electromagnetic chuck of locating sand table body 1, the material of storing in storage device 3 is metal powder, when the flow simulation of needs to product and asset, metal powder in storage device 3 scatters on sand table body 1, demand control part electromagnetic chuck through controlling means according to the teaching moves, the metal powder of scattering on sand table body 1 is fixed at a certain position under the magnetic attraction effect of the electromagnetic chuck that circular telegram this moment (the metal powder near the electromagnetic chuck that does not produce magnetic force can be inhaled by the electromagnetic chuck that produces magnetic force), thereby can effectively directly perceivedly carry out the flow simulation of product and asset, realize the effect of entity show teaching.

In this embodiment, the sand table further comprises a display component, wherein the display component is arranged on the sand table body 1 and covers the electromagnetic chuck. Specifically, the show part is including baffle 11, and baffle 11 is fixed in on sand table body 1 and is located the upper surface of electromagnetic chuck magnetism end of inhaling, and the metal powder in the storing device 3 scatters on baffle 11, controls the operation of each electromagnetic chuck through current controlling means (like PLC control system) according to the teaching demand to the metal powder that makes to scatter on baffle 11 is inhaled by the electromagnetic chuck magnetism of circular telegram, in order to accomplish the flow simulation of product and asset. In addition, the display part further comprises a transparent frame 110, and the transparent frame 110 is arranged on the partition plate 11. Of course, a space for the metal powder to flow is formed between the partition plate 11 and the transparent frame 110, so that students can visually observe the demonstration of the fluidity of the metal powder on the partition plate 11 through the transparent frame 110, thereby improving the learning enthusiasm of the students.

In this embodiment, the storage device 3 includes the rotating device 30, the rotating device 30 is rotatably disposed on the sand table body 1 and has a storage cavity for storing the material, the rotating device 30 is further provided with a blanking port communicated with the storage cavity, and the metal powder in the storage cavity is scattered on the partition plate 11 from the position of the blanking port. Of course, if the metal powder in the storage cavity does not need to be scattered on the partition plate 11 from the position of the blanking port, in order to prevent the metal powder from falling off from the position of the blanking port, a shielding piece for shielding the blanking port is movably arranged on the blanking port, so that the blanking port rotates along with the rotating device 30 to face the electromagnetic device 2, and the material in the storage cavity is scattered on the sand table body 1 from the blanking port in the state that the shielding piece is removed from the blanking port. That is, it can be understood that when the metal powder in the storage cavity needs to be scattered on the partition plate 11, the rotating device 30 is rotated to make the blanking port rotate along with the rotating device 30 to the direction facing the electromagnetic device 2, and at this time, the shielding piece is moved to make the metal powder in the storage cavity scattered on the partition plate 11 from the blanking port; when need not to scatter the storage intracavity metal powder on baffle 11, will shelter from the piece cover blanking mouth can to can prevent that the metal powder in the storage intracavity from dropping from the position of blanking mouth.

In this embodiment, the present invention further comprises a vibration device 4, wherein the vibration device 4 is used for vibrating the materials scattered from the storage device 3, so as to disperse the materials on the sand table body 1. Specifically, this vibrating device 4 is located on the baffle 11 and is located the one end that is close to storing device 3, and when the metal powder scatters from the position of blanking mouth through material mouth 310, the metal powder drops on this vibrating device 4 earlier, scatters the metal powder vibration on baffle 11 through this vibrating device 4 to make the metal powder can disperse on baffle 11 evenly. Specifically, the vibrating device 4 includes a dispersing strip 40 and a driving device, the dispersing strip is elastically disposed on the sand table body 1 and is used for receiving the material scattered from the storage device 3, that is, the dispersing strip is fixed on the partition plate 11 through an elastic component 42, so as to facilitate the vibration of the dispersing strip, the driving device is used for driving the vibration of the dispersing strip, and the driving device is a vibrating motor 41. That is, it can be understood that the metal powder stored in the rotating device 30 above the scattering bar can effectively slide down to the top of the scattering bar through the blanking opening and the material passing opening 310, and then the vibration motor 41 is started, so that the scattering bar can scatter the metal powder under the effective support of the buffer spring in the elastic component 42. Of course, the vibration device 4 is not limited to the structure shown in the following drawings, and the inventors can appropriately modify the structure of the vibration device 4 as necessary. Therefore, it is obvious to those skilled in the art that the vibration device 4 and its equivalent function device of the present invention can be modified reasonably and fall into the protection scope of the present invention.

In this embodiment, the invention further includes an elastic device, where the elastic device is disposed in the material storage cavity and is used for being elastically connected with the shielding member, so that the shielding member moves into the material storage cavity under the action of the elastic device. That is, when metal powder scatters on baffle 11 in the storage cavity, press the shielding piece and can make the shielding piece move to the storage cavity to make metal powder scatter on baffle 11 from the position of blanking mouth in the storage cavity. It should be noted that the movable connection manner of the shielding member and the blanking opening is not limited to the above movable connection manner of the shielding member and the blanking opening through the elastic device. In other embodiments, a chute can be arranged on the blanking port, the shielding piece is connected with the chute in a sliding manner, and the shielding piece can be movably connected with the blanking port. Therefore, it is within the scope of the present invention for a person skilled in the art to modify the movable connection of the shutter to the blanking opening appropriately.

In this embodiment, storage device 3 is still including placing frame 31, place frame 31 and set firmly on sand table body 1, rotary device 30 is rotationally installed in placing frame 31, rotary device 30 still with place frame 31 and can dismantle the connection, it is provided with punishment in advance mouth 310 that can correspond with the blanking mouth to place on the frame 31, that is rotary device 30 is placing the in-process of frame 31 internal rotation, when the blanking mouth rotates towards baffle 11 along with rotary device 30, punishment in advance mouth 310 is corresponding with the blanking mouth, make the metal powder in the storage cavity drop from the position of blanking mouth and scatter on baffle 11 through this punishment in advance mouth 310. In addition, the placing frame 31 is further provided with a pressing device, the pressing device is arranged on the placing frame 31 and used for pressing against the shielding piece when the blanking port rotates to the position of the material passing port 310, so that the shielding piece automatically moves towards the material storage cavity under the action of the elastic device. Therefore, through the action of the abutting device and the elastic device, the shielding piece for shielding the blanking opening can be automatically moved away when the blanking opening rotates to the position of the material passing opening 310 along with the rotating device 30.

Specifically, the pressing device includes a pressing part 312, the pressing part 312 is disposed on the placement frame 31, a groove 3030 is disposed on the rotating device 30 along the circumferential direction thereof, an arc surface 3120 is disposed on one side of the pressing part 312, and the arc surface 3120 is located in the groove 3030, so that the shielding member can automatically move into the material storage cavity under the action of the arc surface 3120 when the shielding member rotates to the position of the material passing port 310 along with the rotating device 30. That is, it can be understood that, an annular groove 3030 is provided on the rotating device 30 along the circumferential direction thereof, the first end of the pressing member 312 is fixed on the placing frame 31, the second end of the pressing member 312 extends in the direction of the groove 3030, and an arc surface 3120 is formed between the first end and the second end of the pressing member 312, the arc surface 3120 is located in the annular groove 3030, and one side opposite to the arc surface 3120 is close to the material passing opening 310, so that during the rotation of the rotating device 30, the shielding member is automatically moved into the material storage chamber by the extrusion of the arc surface 3120 and under the action of the elastic device, thereby achieving the effect that the shielding member is automatically moved away when the material falling opening rotates to the position of the material passing opening 310 along with the rotating device 30.

In this embodiment, the pressing device further includes a blocking member 311, the blocking member 311 is rotatably disposed on the placing frame 31, and the pressing member 312 is slidably disposed on the placing frame 31, and the blocking member 311 blocks the sliding of the pressing member 312. In particular, the amount of the solvent to be used,

the front surface of the placing frame 31 is provided with a socket, the socket is arranged to facilitate the installation and arrangement of the pressing piece 312, the pressing piece 312 penetrates through the socket in a sliding manner, and the setting of the pressing piece 312 can enable the shielding piece to automatically move towards the material storage cavity; the blocking member 311 is rotatably connected to a side of the front surface of the placement frame 31 corresponding to the insertion opening, and the blocking member 311 is configured to effectively prevent the pressing member 312 from being extruded out of the insertion opening, that is, the blocking member 311 can effectively block the sliding of the pressing member 312. It should be noted that, by slidably connecting the pressing member 312 to the placing frame 31 and by using the blocking member 311 rotatably disposed on the placing frame 31 for blocking the sliding of the pressing member 312, the rotating device 30 can be taken out from the placing frame 31.

In this embodiment, the rotating device 30 includes a first rotating cylinder 301, an adjusting wheel 303 and a second rotating cylinder 302, the first rotating cylinder 301 and the second rotating cylinder 302 are connected through the adjusting wheel 303, and when one of the rotating cylinders is rotated, the adjusting wheel 303, the first rotating cylinder 301 and the second rotating cylinder 302 can be driven to rotate. The first rotary cylinder 301 and the second rotary cylinder 302 are mainly used for storing metal powder, of course, a first blanking port 3011 is disposed on the first rotary cylinder 301, a second blanking port 3021 is disposed on the second rotary cylinder 302, the first blanking port 3011 corresponds to the second blanking port 3021 to form the blanking port, and the shielding member includes a first shielding strip 30110 disposed on the first blanking port 3011 and a second shielding strip 30210 disposed on the second blanking port 3021. Of course, the adjustment wheel 303 is provided primarily to facilitate the mounting of the above-described resilient means. Specifically, the circumferential surface of the adjustment wheel 303 is provided with the annular groove 3030 along the circumferential direction, and the circumferential surface of the adjustment wheel 303 is further provided with a recess 3031 penetrating through the groove 3030 along the axial direction, wherein the recess 3031 is mainly used for installing the elastic device. Wherein, the elastic device includes reset frame 304, reset spring 306 and extensible member 305, reset frame 304 sets up in recessed portion 3031, and reset spring 306's one end sets firmly in reset frame 304, and reset spring 306's the other end is connected with extensible member 305, and this extensible member 305's first side is connected fixedly with first sheltering from strip 30110, and extensible member 305's second side and second sheltering from strip 30210 and are connected fixedly. Therefore, in the process of rotating the device 30, that is, in the process of rotating the first rotating cylinder 301, the adjusting wheel 303 and the second rotating cylinder 302, when the telescopic member 305 moves toward the recess portion 3031 under the action of the arc-shaped surface 3120 of the pressing member 312, the telescopic member 305 can drive the first shielding strip 30110 to move into the first rotating cylinder 301 and the second shielding strip to move into the second rotating cylinder 302.

Of course, the rotating device 30 is installed by inserting into the placing frame 31 from one end of the placing frame 31, that is, the first end of the placing frame 31 is provided with the installation opening 313, the first rotating cylinder 301, the adjusting wheel 303 and the second rotating cylinder 302 which are connected as a whole are inserted into the placing frame 31 from the position of the installation opening 313, and the opening of the material passing opening 310 on the placing frame 31 is smaller than the diameter of the first rotating cylinder 301 and the second rotating cylinder 302 but larger than the opening of the material dropping opening, so as to prevent the first rotating cylinder 301 and the second rotating cylinder 302 from dropping from the position of the material passing opening 310, but not affect the position of the metal powder passing through the material dropping opening 310 from the partition 11, so that the rotating device 30 can be rotatably connected with the placing frame 31 and can be detached from the placing frame 31. When the rotating device 30 needs to be taken out of the placing frame 31, the blocking member 311 is only required to be rotated, the pressing member 312 is taken out from the position of the insertion opening, and the first rotating cylinder 301 is taken out from one end of the placing frame 31, so that the whole rotating device 30 can be driven to be taken out of the placing frame 31, and the installation and the disassembly are convenient.

In this embodiment, one end of the first rotary cylinder 301, which is far away from the adjusting wheel 303, is connected to a rotary key 3010, and the end of the rotary key 3010 is located in the placing frame 31 and connected to the first rotary cylinder 301, and the other end is located outside the placing frame 31 and used for rotating the first rotary cylinder 301. The rotation key 3010 facilitates the rotation of the first rotary cylinder 301, thereby driving the adjustment wheel 303 and the second rotary cylinder 302 to rotate, and achieving the purpose of rotating the rotating device 30 in the placing frame 31. The end of the second rotary cylinder 302 far from the adjusting wheel 303 is connected with a rotary handle 3020, the rotary handle 3020 is inserted into the end of the second rotary cylinder 302 far from the adjusting wheel 303, the part of the rotary handle 3020 connected with the second rotary cylinder 302 in a clamping manner is positioned in the placing frame 31, the rotary handle 3020 is positioned outside the placing frame 31, and the rotary handle 3020 is rotated to drive the second rotary cylinder 302 to rotate and also drive the adjusting wheel 303 and the first rotary cylinder 301 to rotate, thereby realizing the purpose of rotating the rotating device 30 in the placing frame 31. However, since the rotating handle 3020 is engaged with the second rotating cylinder 302, that is, the rotating handle 3020 can be pulled out along the axial direction of the second rotating cylinder 302, when the first rotating cylinder 301, the adjusting wheel 303 and the second rotating cylinder 302 which are connected as a whole need to be taken out from the position of the mounting opening 313 in the placing frame 31, only the blocking member 311 needs to be rotated, the pressing member 312 is taken out from the position of the insertion opening, then the rotating handle 3020 is pulled out along the axial direction of the second rotating cylinder 302, and finally the first rotating cylinder 301 is taken out from one end of the placing frame 31, so that the whole rotating device 30 can be taken out from the placing frame 31, and the installation and the disassembly are convenient.

In this embodiment, the present invention further comprises a locking device 5, and the locking device 5 is used for locking the rotation angle of the rotating device 30. Specifically, the locking device 5 includes an arc-shaped positioning slot 50 and a fastening member 51, the arc-shaped positioning slot 50 is disposed on the placing frame 31 and is located at one end portion connected with the rotating handle 3020, of course, the arc-shaped track of the arc-shaped positioning slot 50 is disposed along the rotating track of the rotating handle 3020, the fastening member 51 is screwed on the rotating handle 3020 through a threaded hole, and one end of the fastening member 51 can extend into the arc-shaped positioning slot 50. When the rotating device 30 needs to be fixed at a certain rotation angle position, the fastening member 51 is tightened to locate one end of the fastening member 51 in the arc-shaped positioning slot 50.

In other embodiments, the locking device 5 may also be a positioning bolt, through which the rotating handle 3020 is fixed at a certain rotation angle position. Therefore, it is obvious to those skilled in the art that the structure of the locking device 5 and its equivalent function should be properly changed and still fall within the protection scope of the present invention.

In this embodiment, the sand table further comprises a material receiving device 6, the material receiving device 6 is arranged on the sand table body 1 and is opposite to the storage device 3, and the material receiving device 6 is used for receiving materials falling from the sand table body 1. That is, it can be understood that after the sand table device of the present invention performs teaching demonstration, the electromagnetic chuck is not powered on and does not generate magnetic force, so that the metal powder on the partition plate 11 will fall off, and therefore the receiving device 6 receives the metal powder falling off from the partition plate 11. It should be noted that the structure of the receiving device 6 is the same as that of the storage device 3, and therefore, the detailed description thereof is omitted here. It should be noted that, the rotating device 30 for storing the material in the storage device 3 can be taken out from the placing frame 31 in the storage device 3, so that when the rotating device 30 in the material receiving device 6 is filled with the metal powder sliding from the partition 11, the rotating device 30 in the material receiving device 6 can be taken out to be exchanged with the rotating device 30 in the storage device 3, and the circulation is performed, so that the metal powder can be saved, the waste of the metal powder is avoided, the equipment can be conveniently reused, and the actual teaching efficiency is effectively improved.

In this embodiment, the sand table device further comprises a cart body 10, wherein the sand table body 1 is rotatably arranged on the cart body 10 and is supported by a support device movably arranged on the cart body 10, so that the use angle of the sand table body 1 is adjustable, the sand table device can conveniently adjust the self state according to the actual use condition, and the sand table device can efficiently realize due functions.

Specifically, the supporting device includes a supporting component and a positioning push rod 102, a limiting groove is formed in the top of the cart body 10, the setting of the limiting groove facilitates installation and setting of the positioning push rod 102, the positioning push rod 102 is slidably mounted in the limiting groove, a first end of the positioning push rod 102 penetrates through the rear inner wall of the limiting groove, a second end of the positioning push rod 102 is rotatably connected with the supporting component, one end of the supporting component, which is far away from the positioning push rod 102, is slidably connected with the rear surface of the sand table body 1 through a sliding frame 12, namely the sliding frame 12 is fixedly arranged on the rear surface of the sand table body 1, and the supporting component is slidably connected with the sliding frame 12. Therefore, the sand table body 1 can be jacked up under the action of the supporting component by moving the positioning push rod 102, so that the angle of the sand table body 1 can be adjusted, the use requirement is met, and the flexible use effect is achieved. Of course, in order to lock the positioning push rod 102 at a certain fixed position, the present invention further comprises a locking member, the locking member comprises an elastic bolt 1020 and a plurality of positioning holes 1021, each positioning hole 1021 is equidistantly arranged along the length direction of the positioning push rod 102, and the elastic bolt 1020 is inserted into the positioning hole 1021 to lock the positioning push rod 102 at a certain fixed position, so as to fix the sand table body 1 at a certain angle. It can be understood that the plurality of positioning holes 1021 are provided to facilitate the adjustment of the use angle of the sand table body 1, so as to meet the use requirement of the sand table device of the present invention.

In this embodiment, the supporting member includes a first supporting member 70, an adjusting tube 7 and a second supporting member 72, the first supporting member 70 is connected to the second supporting member 72 through the adjusting tube 7, that is, a first end of the first supporting member 70 is slidably connected to the sliding frame 12, a second end of the first supporting member 70 is threadedly connected to the adjusting tube 7, a first end of the second supporting member 72 is threadedly connected to an end of the adjusting tube 7 far from the first supporting member 70, and a second end of the second supporting member 72 is rotatably connected to the positioning push rod 102. The supporting height of the supporting component can be effectively adjusted through the structure, so that the using angle of the sand table body 1 can be adjusted to be in the best state, and students can learn intuitively.

In this embodiment, the sand table body 1 is rotatably connected to the cart body 10 through the joint member 100, that is, the joint member 100 is fixed to the cart body 10, and the sand table body 1 is rotatably connected to the joint member 100 through the connecting member 1101, so that the sand table body 1 can rotate around the joint member 100. To facilitate the mounting and dismounting of the sand table body 1, the clip 100 can be moved on the cart body 10. Specifically, the cart body 10 is provided with two sliding grooves 101, the two sliding grooves 101 are located on two sides of the limiting groove, the bottom of the clamping member 100 is provided with a sliding block 1001, and the sliding block 1001 is slidably connected with the sliding grooves 101, so that the clamping member 100 can move on the cart body 10. In addition, the top of the cart body 10 is further provided with a limiting frame, and the limiting frame is located at a position where the connecting piece 1101 is rotatably connected with the clamping piece 100, and is used for limiting the rotation angle of the sand table body 1. Of course, a limiting member 105 is further disposed on the cart body 10, and the movement of the clamping member 100 is limited by the limiting member 105, so as to ensure the stability of the sand table body 1 in the rotating process. That is, it can be understood that, when the angle of the sand table body 1 is adjusted, the clip 100 cannot move along the sliding groove 101 under the limitation of the limiting part 105, and only when the sand table body 1 needs to be detached from the clip 100, the clip 100 can move along the sliding groove 101, so as to detach the sand table body 1 from the clip 100. Therefore, when the angle of the sand table body 1 is adjusted, the sliding block 1001 of the clamping member 100 is located in the sliding groove 101, one side of the clamping member 100 abuts against the cart body 10 through the supporting block 1093 capable of moving along the length direction of the clamping member 100, and the other side of the clamping member 100 is limited by the limiting member 105 so that the clamping member 100 cannot move along the sliding groove 101. That is, the supporting blocks 1093 are disposed at both ends of the clip 100, and when each supporting block 1093 is moved away from the clip 100, the bottom surface of the clip 100 contacts the top surface of the cart body 10, and the limiting member 104 cannot limit the clip 100 and the clip 100 can move along the sliding groove 101. In addition, the bottom of the connecting piece 1101 is provided with a sliding wheel 11010 which can contact with the top surface of the cart body 10, so that in the process of adjusting the angle of the sand table body 1, the sand table can be easily jacked up, and meanwhile, the sliding wheel can facilitate the lifting of the clamping piece 100.

In this embodiment, the present invention further includes a moving device, which is disposed on the cart body 10 and is used for driving the supporting block 1093 to move along the length direction of the clip 100. Specifically, the moving device comprises two supporting frames 109, two linkage rods 107, a sliding rod 108 and a control mechanism, wherein the sliding rod 108 is fixed on the cart body 10 through a fixing sheet and is positioned at the front side edge of the clamping piece 100; the two support frames 109 are respectively and fixedly arranged on the cart body 10 and positioned at one end of the support block 1093 far away from the clamping member 100, and a linkage bolt 1090 is connected between each support frame 109 and each support block 1093, namely one end of the linkage bolt 1090 is fixedly connected with the support block 1093, and the other end is movably connected with the support frame 109; be provided with linkage piece 1092 on the interlock bolt 1090, still the cover is equipped with first spacing spring 1091 on the interlock bolt 1090, and the one end and the linkage piece 1092 of first spacing spring 1091 are fixed, the inner wall that the supporting shoe 1093 was kept away from to the other end and carriage 109 is fixed, the one end and the interlock bolt 1090 of gangbar 107 are connected fixedly and are located between the inner wall that linkage piece 1092 and carriage 109 are close to supporting shoe 1093, the other end and the operating mechanism of gangbar 107 are connected, gangbar 107 also and slide bar sliding connection simultaneously, so that operating mechanism can drive the removal of gangbar 107, thereby drive the removal of interlock bolt 1090, and then drive the supporting shoe 1093 and keep away from the one end movement of joint 100. When the supporting block 1093 needs to be moved to a position for supporting the clip 100, the interlocking bolt 1090 can be automatically restored to the original position by the acting force of the first limiting spring 1091 through the operating mechanism.

Specifically, the operating mechanism includes a fixing seat 106, a limiting rod 1060 and a pressing pipe 1061, wherein the fixing seat 106 is fixed on the front side edge of the cart body 10, so that the sliding rod 108 passes through the fixing seat 106; the limiting rod 1060 is fixed on the front side of the cart body 10 and is perpendicular to the sliding rod 108, a pressure pipe 1061 is slidably sleeved on the outer surface of the limiting rod 1060, ejector rods 1062 are rotatably connected to two sides of the pressure pipe 1061, the ejector rods 1062 are connected with one end, far away from the supporting frame 109, of the linkage rod 107, of course, a second limiting spring 10601 is further arranged between the limiting rod 1060 and the pressure pipe 1061, the second limiting spring 10601 is sleeved on the outer surface of the limiting rod 1060, the arrangement of the second limiting spring 10601 can effectively restore the use position of the pressure pipe 1061, one end of the second limiting spring 10601 is fixedly connected with the cart body 10, and the other end of the second limiting spring 1061 is fixedly connected with the pressure pipe. Therefore, it can be known that, the supporting block 1093 can be driven by pressing the pressing pipe 1061 to move away from one end of the clip 100, so that the clip 100 can move along the sliding groove 101 without being limited by the limiting piece 104, so that the sand table body 1 can be detached from the clip 100, and the sand table body 1 can be detached.

Of course, in other embodiments, the moving device may also be a screw mechanism, the screw mechanism is disposed at an end of the supporting block 1093 away from the clip 100, and the supporting block 1093 is driven by the screw mechanism to move along the length direction of the clip 100, so it should also fall within the scope of the present invention by reasonably changing the structure of the moving device.

In addition, the bottom of the cart body 10 is located at the fixed frame 103 fixedly connected to the lower side of the two sliding grooves 101, the two sides of each fixed frame 103 are connected with a plurality of supporting wheels 1030 in a rotating mode along the horizontal direction between the inner surface walls, the supporting wheels 1030 are arranged to be capable of effectively supporting the clamping piece 100 in a stable mode, and therefore the clamping piece 100 can conveniently support the sand table body 1 to conduct position movement adjustment.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.