Earth structure demonstration model device

Abstract

The utility model provides an earth structure demonstration model device, which relates to the technical field of earth structure demonstration and comprises a sphere, and the sphere is divided into an outer layer used for representing the earth crust, an interlayer used for representing the earth curtain and a central layer used for representing the earth core from outside to inside. The sphere is divided into the outer layer used for representing the earth crust, the interlayer used for representing the earth curtain and the center layer used for representing the earth core, and the outer layer, the interlayer and the center layer are equally divided into two halves, so that during display, the outer layer, the interlayer and the center layer on the two sides can be selected to be separated so as to be convenient for personnel to explain the earth structure; the outer layer, the interlayer and the center layer on the same side can be completely separated, further explanation by personnel is facilitated, students can more intuitively understand the explanation in a splitting mode after combination, and understanding of the students is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of earth structure demonstration, in particular to an earth structure demonstration model device. Background Art

[0002] The structure of the Earth can be demonstrated in a variety of ways, including 3D animations, models, and actual geological data. The most common way is to use models.

[0003] For example, the geological structure demonstration model device, publication number: CN214279391U. When in use, the device is moved to the teaching site, and then the turntable is rotated, the turntable drives the rotating rod to rotate, the rotating rod drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the threaded rod to rotate, the threaded rod drives the threaded sleeve to move upward, the threaded sleeve drives the inner tube, bottom box and rectangular frame and other devices to move upward. When the rectangular frame moves upward to the appropriate position, stop rotating the turntable, then open the box door, take out the corresponding first geological structure model body and the second geological structure model body from the inner cavity of the bottom box, and place them on the corresponding support plates. After completion, start the geological structure demonstration teaching.

[0004] However, because the first geological structure model body and the second geological structure model body are stored separately and are also displayed separately during actual presentation, it is not easy for students to understand the knowledge by simply memorizing it during actual learning, which may affect the teaching quality. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art and to propose an earth structure demonstration model device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a kind of earth structure demonstration model device, comprising a sphere, wherein the sphere is divided into an outer layer for representing the crust, an interlayer for representing the mantle and a central layer for representing the core from the outside to the inside, the outer layer, interlayer and central layer are equally divided into two halves, and the two halves of the outer layer, interlayer and central layer are connected with embedded spring rods, and conical notches are opened at the centers of the opposite surfaces of the two halves of the central layer, and the conical notches extend to the interlayer and outer layer arranged on the same side as the central layer, and a pull wire is arranged in the conical notch, and three blocking balls are fixedly connected to the surface of the pull wire, and the diameters of the three blocking balls increase successively and are respectively used to clamp with the conical notches in the outer layer, interlayer and central layer, and a base is further provided outside the sphere, and a slide rail is fixedly connected to the surface of the base, and a slider plugged into the slide rail is fixedly connected to the two halves of the outer layer.

[0007] Preferably, two spring rods are symmetrically arranged between the two half outer layers, the interlayer and the center layer, the end face of the spring rod cylinder is fixed to one half of the outer layer, the interlayer and the center layer, and the telescopic end is fixedly connected to the other half of the outer layer, the interlayer and the center layer.

[0008] Preferably, the three blocking balls are divided into ball No. 1, ball No. 2 and ball No. 3 in the order of engaging with the conical grooves in the outer layer, interlayer and center layer, and the diameters of ball No. 1, ball No. 2 and ball No. 3 increase successively. Ball No. 1 is gap-fitted with the conical grooves in the interlayer and center layer, and ball No. 2 is gap-fitted with the conical groove in the center layer.

[0009] Preferably, the length of the string between the No. 1 ball and the No. 2 ball is equal to the sum of the radii of the outer layer, the interlayer and the center layer, and the length of the string between the No. 2 ball and the No. 3 ball is equal to the sum of the radii of the interlayer and the center layer.

[0010] Preferably, through grooves are provided on the opposite sides of the two halves of the central layer, the notch on one side of the through groove is connected to the conical notch, and the notch on the other side passes through the interlayer and extends to the outer wall of the outer layer and is fixedly connected to a cover plate that is plugged into the slide rail, and one end of the pull wire extends into the base through the through groove and the cover plate.

[0011] Preferably, both ends of the outer wall of the base opposite to the sphere are rotatably connected to a winding wheel, and a traction rope extending into the base and connected to one end of the adjacent pull wire is wound around the winding wheel. The end faces of the two winding wheels are fixedly connected to sprockets, and the two sprockets are driven by a chain.

[0012] Preferably, both ends of the base facing the sphere are rotatably connected to triangular blocks through embedded retaining springs.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the present invention, a sphere is set up to divide the sphere into an outer layer for representing the crust, an interlayer for representing the mantle, and a central layer for representing the core, and the outer layer, interlayer, and central layer are equally divided into two halves. Therefore, when displaying, the outer layer, interlayer, and central layer on both sides can be selected to be separated to facilitate personnel to explain the structure of the earth. Further, by pulling the pull line, the outer layer, interlayer, and central layer on the same side can be completely separated, which is convenient for personnel to further explain. Explanation by combining and then splitting facilitates students to have a more intuitive understanding, which helps students understand.

[0015] 2. In the present invention, a winding wheel is provided and the traction rope is rotated and wound by the winding wheel. When the sphere is not separated, the traction rope is straightened and tightened by winding the traction rope, which can prevent the traction rope from shaking due to shaking, thereby preventing it from getting entangled and knotted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention provides a three-dimensional structural diagram of an earth structure demonstration model device;

[0017] Figure 2 This utility model proposes a device for demonstrating the structure of the earth Figure 1 Schematic diagram of the side section structure;

[0018] Figure 3 This utility model proposes a device for demonstrating the structure of the earth Figure 1 Schematic diagram of the top cross-section structure;

[0019] Figure 4 This is a schematic diagram of the sphere's structure when viewed from above.

[0020] Legend: 1. Base; 2. Pull rope; 3. Triangle block; 4. Slide rail; 5. Outer layer; 6. Pull wire; 7. Center layer; 8. Interlayer; 9. Blocking ball; 91. Ball No. 1; 92. Ball No. 2; 93. Ball No. 3; 10. Conical notch; 11. Reel; 12. Sprocket; 13. Through slot; 14. Cover plate; 15. Slider; 16. Spring rod; 17. Sphere. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] like Figure 1-4As shown, a model device for demonstrating the structure of the earth includes a sphere 17. The sphere 17 is divided from the outside to the inside into an outer layer 5 for representing the crust, an interlayer 8 for representing the mantle, and a central layer 7 for representing the core. In actual use, corresponding protrusions (not shown in this scheme) can be made on the surfaces of the central layer 7, the interlayer 8, and the outer layer 5 according to the known shapes of the core, mantle, and crust surfaces to increase intuitiveness. The outer layer 5, the interlayer 8, and the central layer 7 are equally divided into two halves, which can be easily displayed by overcoming the tension of the spring rod 16. The cross-sectional shape of the earth is shown to students by separating the two halves. The two halves of the outer layer 5, the interlayer 8 and the central layer 7 are connected with embedded spring rods 16. Under normal circumstances, the elastic contraction of the spring rods 16 makes the model a complete spherical shape. There are two symmetrical spring rods 16 between the two halves of the outer layer 5, the interlayer 8 and the central layer 7. The end face of the spring rod 16 cylinder is fixed to one half of the outer layer 5, the interlayer 8 and the central layer 7, and the telescopic end is fixed to the other half of the outer layer 5, the interlayer 8 and the central layer 7; the centers of the opposite surfaces of the two halves of the central layer 7 are opened. There is a conical notch 10, which extends to the interlayer 8 and the outer layer 5 set on the same side as the center layer 7. A pull wire 6 is set in the conical notch 10, and three blocking balls 9 are fixedly connected to the surface of the pull wire 6. The diameters of the three blocking balls 9 increase in sequence and are respectively used to engage with the conical notch 10 in the outer layer 5, the interlayer 8 and the center layer 7. It is further shown that by pulling the pull wire 6, the No. 1 ball 91 can be first engaged with the inner wall of the conical notch 10 in the outer layer 5, and through the obstruction of the No. 1 ball 91, when the pull wire 6 is continuously pulled, the outer layer 5 and the center layer 7 are driven to engage with each other. The interlayer 8 on the side is detached, and the pull wire 6 is continuously pulled until the second ball 92 is engaged with the tapered notch 10 in the interlayer 8. The second ball 92 can be used to separate the interlayer 8 from the center layer 7 on the same side while the pull wire 6 is continuously pulled, so that the outer layer 5, the interlayer 8 and the center layer 7 on the same side can be completely detached, which is convenient for students to observe independently and intuitively. A base 1 is also provided outside the sphere 17, and a slide rail 4 is fixedly connected to the surface of the base 1. Sliders 15 plugged into the slide rail 4 are fixedly connected to the two halves of the outer layer 5 to ensure that there is no positional displacement when the two halves of the outer layer 5 are separated.

[0024] In addition, the three blocking balls 9 are divided into No. 1 ball 91, No. 2 ball 92 and No. 3 ball 93 in the order of engaging with the tapered notches 10 in the outer layer 5, the interlayer 8 and the center layer 7, and the diameters of No. 1 ball 91, No. 2 ball 92 and No. 3 ball 93 increase in sequence. The No. 1 ball 91 is clearance-matched with the tapered notches 10 in the interlayer 8 and the center layer 7, and the No. 2 ball 92 is clearance-matched with the tapered notch 10 in the center layer 7, so as to ensure that when the pull wire 6 is pulled, the No. 1 ball 91 passes smoothly. The center layer 7 and the interlayer 8, as well as the No. 2 ball 92, pass through the center layer 7 smoothly; the length of the pull wire 6 between the No. 1 ball 91 and the No. 2 ball 92 is equal to the sum of the radii of the outer layer 5, the interlayer 8 and the center layer 7, and the length of the pull wire 6 between the No. 2 ball 92 and the No. 3 ball 93 is equal to the sum of the radii of the interlayer 8 and the center layer 7, so as to ensure that under the blocking action of the pull wire 6 and the No. 1 ball 91, the No. 2 ball 92 and the No. 3 ball 93, the outer layer 5, the interlayer 8 and the center layer 7 on the same side can be completely separated.

[0025] The two ends of the outer wall of the base 1 opposite to the spherical body 17 are rotatably connected to the winding wheel 11, and the traction rope 2 extending into the base 1 and connected to one end of the adjacent pulling wire 6 is wound on the winding wheel 11. The end faces of the two winding wheels 11 are fixedly connected to the sprocket 12, and the two sprockets 12 are driven by a chain. By adjusting the winding direction of the traction rope 2 on the surface of the winding wheel 11, the connection of the chain causes the two sprockets 12 to drive the corresponding winding wheel 11 to rotate. The reel 11 releases the traction rope 2 or reels the traction rope 2 at the same time, so that when the person pulls the two pulling lines 6, the traction ropes 2 connected to it can be released at the same time. The two ends of the base 1 facing the sphere 17 are connected to the triangular block 3 through the embedded rotation of the retaining spring. The right-angle corner of the triangular block 3 rotates with the base 1, and the inclined surface faces the middle position of the base 1. The bottom edge of the inclined surface overlaps the base 1. Under the elastic action of the retaining spring, the bottom edge of the inclined surface of the triangular block 3 always presses against the surface of the base 1, and the inclined surface of the triangular block 3 will contact and slide with the slider 15 when it passes, and under the pressure of the slider 15, the triangular block 3 overcomes the torsion of the retaining spring and rotates to facilitate the passage of the slider 15. The set triangular block 3 can drive the slider 15 on its surface to move to the end of the base 1 after the outer layer 5 drives it. By overlapping and resisting with the right-angled edge of the triangular block 3, it can prevent the two separated outer layers 5 from moving relative to each other and closing under the elastic contraction of the stretched spring rod 16.

[0026] Working principle: During normal demonstration, the staff will fix the base 1 on the desk, first introduce the outer wall of the outer layer 5 for preliminary explanation, and then directly separate the sphere 17 from the middle, that is, show the cross section of the sphere 17 in front of the students. During in-depth explanation, the staff will pull the two pull lines 6. When the pull lines 6 are pulled, the corresponding traction rope 2 will pull the winding wheel 11 to rotate and release. Under the blocking effect of the No. 1 ball 91, the outer layer 5 will move with the movement of the pull line 6 until the outer layer 5 is misaligned with the interlayer 8 on the same side, and then The rear second ball 92 cooperates with the interlayer 8 to realize that when the pull wire 6 is pulled, the outer layer 5 and the interlayer 8 are driven to move simultaneously, until the interlayer 8 is misaligned with the center layer 7 on the same side, and at this time the third ball 93 is in contact with the center layer 7. Continuous pulling of the pull wire 6 can realize the synchronous movement of the center layer 7, and the two halves of the center layer 7 can be separated. At the beginning of separation, the corresponding spring rod 16 will elastically stretch, and the right-angled side of the triangle block 3 can be used to press against the side of the slider 15, so that the outer layer 5, interlayer 8 and center layer 7 can be completely independent, which is convenient for personnel to further explain.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An earth structure demonstration model device, characterized in that: The invention comprises a sphere (17), wherein the sphere (17) is divided from the outside to the inside into an outer layer (5) for representing the crust, an interlayer (8) for representing the mantle, and a central layer (7) for representing the core. The outer layer (5), the interlayer (8), and the central layer (7) are equally divided into two halves. The two halves of the outer layer (5), the interlayer (8), and the central layer (7) are connected with spring rods (16) installed therebetween. Conical notches (10) are opened at the centers of the opposite surfaces of the two halves of the central layer (7). The conical notches (10) extend to the same side as the central layer (7). A pull wire (6) is arranged in the interlayer (8) and the outer layer (5), and the tapered notch (10) is provided with a pull wire (6). Three blocking balls (9) are fixedly connected to the surface of the pull wire (6). The diameters of the three blocking balls (9) increase in sequence and are respectively used to engage with the tapered notches (10) in the outer layer (5), the interlayer (8) and the center layer (7). A base (1) is also provided outside the sphere (17). The surface of the base (1) is fixedly connected with a slide rail (4). Slide blocks (15) plugged into the slide rail (4) are fixedly connected to the two halves of the outer layer (5).

2. The earth structure demonstration model device according to claim 1, characterized in that: Two spring rods (16) are symmetrically arranged between the two half outer layers (5), the interlayer (8) and the center layer (7). The cylinder end surface of the spring rod (16) is fixed to one half of the outer layer (5), the interlayer (8) and the center layer (7), and the telescopic end is fixedly connected to the other half of the outer layer (5), the interlayer (8) and the center layer (7).

3. The earth structure demonstration model device according to claim 1, characterized in that: The three blocking balls (9) are divided into a first ball (91), a second ball (92) and a third ball (93) in the order of engagement with the tapered notches (10) in the outer layer (5), the interlayer (8) and the central layer (7), and the diameters of the first ball (91), the second ball (92) and the third ball (93) increase in sequence. The first ball (91) is clearance-fitted with the tapered notches (10) in the interlayer (8) and the central layer (7), and the second ball (92) is clearance-fitted with the tapered notches (10) in the central layer (7).

4. The earth structure demonstration model device according to claim 3, characterized in that: The length of the string (6) between the first ball (91) and the second ball (92) is equal to the sum of the radii of the outer layer (5), the interlayer (8) and the central layer (7); the length of the string (6) between the second ball (92) and the third ball (93) is equal to the sum of the radii of the interlayer (8) and the central layer (7).

5. The earth structure demonstration model device according to claim 1, characterized in that: Through grooves (13) are provided on the opposite sides of the two halves of the central layer (7), one side of the through groove (13) is connected to the tapered groove (10), and the other side of the through groove (13) passes through the interlayer (8) and extends to the outer wall of the outer layer (5) and is fixedly connected to a cover plate (14) plugged into the slide rail (4), and one end of the pull wire (6) passes through the through groove (13) and the cover plate (14) and extends into the base (1).

6. The earth structure demonstration model device according to claim 5, characterized in that: The base (1) has a reel (11) rotatably connected to both ends of the outer wall on the side opposite to the sphere (17). A traction rope (2) extending into the base (1) and connected to one end of an adjacent pull line (6) is wound around the reel (11). The end faces of the two reels (11) are fixedly connected to sprockets (12), and the two sprockets (12) are driven by a chain.

7. The earth structure demonstration model device according to claim 5, characterized in that: Both ends of the base (1) facing the sphere (17) are rotatably connected to triangular blocks (3) via internally embedded retaining springs.

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