A cross-border e-commerce teaching sand table model

Abstract

The present application relates to a sand table model, especially to a cross-border e-commerce teaching sand table model. The present application provides a cross-border e-commerce teaching sand table model with good teaching effect. The cross-border e-commerce teaching sand table model comprises a base, a first fixing rod, a first connecting piece, a first connecting seat and the like. The top of the base is connected with the first fixing rod. The first fixing rod is slidably connected with the first connecting piece. The first connecting piece is rotatably connected with the first connecting seat. By rotating the rotating ring, the four second sand table blocks can be sequentially moved forward and upward to combine with the first sand table block under the resetting action of the first connecting spring and the reset spring. In this way, the four second sand table blocks can be sequentially guided out, and the modules are distinguished. The module teaching effect is achieved, and students can learn more intuitively, so that the teaching effect is good.

Description

Technical Field

[0001] This invention relates to a sand table model, and more particularly to a cross-border e-commerce teaching sand table model. Background Technology

[0002] A sand table is a miniature representation of architectural art and the structure of objects. Sand table models allow people to intuitively view and learn what is displayed. In cross-border e-commerce teaching, sand table models are often used to teach students.

[0003] According to a sand table teaching model with patent publication number CN211529466U, the model includes a support base. The upper surface of the support base has a groove, and a sand table is placed inside the groove. The inner sidewalls of the grooves each have a first sliding groove. A sliding plate is fixedly connected to the bottom of the sand table, and both ends of the sliding plate are engaged within the first sliding grooves. The support base has a cavity inside, and the bottom wall of the cavity has a symmetrical second sliding groove. A slider is placed inside the second sliding groove, and a through tube is fixedly embedded inside the slider. A sliding rod is placed inside the through tube, and both ends of the sliding rod are fixedly connected to the inner sidewall of the second sliding groove. A telescopic spring is wound around the outer surface of the sliding rod, and the end of the telescopic spring closest to the inner sidewall of the second sliding groove is fixedly connected to the inner sidewall of the second sliding groove. This sand table teaching model can effectively realize the vertical movement of the sand table, avoiding damage to the sand table in the event of a collision and extending the service life of the sand table.

[0004] Although the aforementioned patent can protect the sand table by rotating the crank handle to drive the threaded rod to rotate, thus moving the sand table up and down, it cannot modularize the sand table. This means that the sand table can only be displayed to students in a single form, resulting in poor pedagogical value.

[0005] In order to solve the problems existing in the above-mentioned technologies, it is necessary to design a cross-border e-commerce teaching sandbox model to achieve better teaching results. Summary of the Invention

[0006] In order to overcome the shortcomings of current sand table models in teaching effectiveness, the technical problem of this invention is to provide a cross-border e-commerce teaching sand table model with good teaching effectiveness.

[0007] A cross-border e-commerce teaching sand table model includes a base, a first fixed rod, a first connector, a first connecting seat, a frame, torsion springs, a first connecting rod, a first sand table block, a protective shell, a mold-separating mechanism, a separation mechanism, and a pulling mechanism. The top of the base is connected to the first fixed rod, and the first connector is slidably connected to the first fixed rod. There is friction between the first connector and the first fixed rod. The first connecting seat is rotatably connected to the first connector. Two torsion springs are connected between the first connecting seat and the first fixed rod, and both torsion springs are sleeved on the first fixed rod. The right side of the first connecting seat is connected to the frame, and the right side of the frame is connected to the protective shell. The left side wall inside the frame is connected to the first connecting rod, and the right side of the first connecting rod is connected to the first sand table block. The mold-separating mechanism is provided on the first connecting rod, the separation mechanism is connected to the left side of the protective shell, and the pulling mechanism is provided on the lower left side of the first fixed rod.

[0008] To further explain, the mold-separating mechanism includes guide rods, first sliders, slide rails, first connecting springs, second sliders, second sand table blocks, return springs, first connecting blocks, and limiting rods. Four guide rods are evenly spaced on the first connecting rods, and first sliders are slidably connected to each of the four guide rods. First connecting springs are connected between each of the four first sliders and the first connecting rods, and each of the four first connecting springs is sleeved on the four guide rods. Slide rail blocks are connected to the ends of the four first sliders that are far apart from each other. Second sliders are slidably connected inside each of the four slide rail blocks. Return springs are connected between each of the four second sliders and the adjacent slide rail blocks, and each of the four return springs is sleeved on the slide rail blocks. Second sand table blocks are connected to the right side of each of the four second sand table blocks, and first connecting blocks are connected to the side of each of the four second sand table blocks closest to the protective shell. Four limiting rods are evenly spaced on the right side of the inside of the frame, and each of the four limiting rods is in contact with the adjacent first connecting blocks.

[0009] To further explain, the separation mechanism includes a second fixed rod, a connecting ring, a second connecting block, a first connecting pulley, a first pull rope, and a rotating ring. Four second fixed rods are evenly spaced on the left side of the frame, and a connecting ring is connected between the left sides of the four second fixed rods. A rotating ring is rotatably connected to the connecting ring, and there is friction between the rotating ring and the connecting ring. Four second connecting blocks are evenly spaced and slidably connected inside the connecting ring, and all four second connecting blocks are in contact with the rotating ring. Four first connecting pulleys are evenly spaced on the left side wall inside the frame, and all four first connecting pulleys are located outside the first connecting rods. First pull ropes are connected between the upper front slide block and the top second connecting block, between the lower front slide block and the lower front second connecting block, between the upper rear slide block and the upper rear second connecting block, and between the lower rear slide block and the bottom second connecting block. The four first pull ropes are in contact with adjacent first connecting pulleys.

[0010] To further explain, the pulling mechanism includes a fixed block, an electric slide rail, a second connecting rod, a second connecting pulley, a second pull rope, and a limiting block. The fixed block is connected to the lower left side of the first fixed rod. The electric slide rail is installed on the top left side of the fixed block. The second connecting rod is connected to the sliding part of the electric slide rail. The upper right side of the second connecting rod is connected to the first connecting part. The upper right side of the first connecting part is connected to the second connecting pulley. The second pull rope is connected between the upper right side of the first fixed rod and the frame. The second pull rope is in contact with the second connecting pulley. The limiting block is connected to the upper left side of the first connecting part.

[0011] Further explanation: It also includes a locking mechanism, which includes a third connecting block, a second connecting piece, a bidirectional wedge, and a second connecting spring. The third connecting block is connected to the upper rear side of the rotating ring, and four second connecting pieces are connected to the upper part of the left side wall of the connecting ring. Bidirectional wedges are slidably connected to each of the four second connecting pieces. The third connecting block contacts the adjacent bidirectional wedge. A second connecting spring is connected between each of the four bidirectional wedges and the adjacent second connecting piece. The four second connecting springs are respectively sleeved on the four bidirectional wedges.

[0012] To further explain, it also includes a supplementary lighting mechanism, which includes fixed rings, supplementary lights, and a light-blocking frame. Six fixed rings are evenly spaced on the right side of the frame, and supplementary lights are installed between the six fixed rings. The light-blocking frame is connected to the right side of the frame, and the supplementary lights and the six fixed rings are all located inside the light-blocking frame.

[0013] To further explain, it also includes a blocking mechanism, which includes a second connecting seat, a fourth connecting block, a glass baffle, and a locking block. The second connecting seat is connected to the front right side of the light-blocking frame, the fourth connecting block is rotatably connected to the second connecting seat, the glass baffle is connected to the rear side of the fourth connecting block, and the locking block is slidably connected to the rear right side of the light-blocking frame, with the locking block contacting the glass baffle.

[0014] To further explain, a handle is connected to the lower rear side of the rotating ring.

[0015] The present invention has the following beneficial effects: 1. By rotating the rotating ring, under the action of the first connecting spring and the reset spring, the four second sand table blocks can move forward and upward in sequence to combine with the first sand table block. In this way, the four second sand table blocks can be brought out in sequence, and the modules are distinguished, achieving the effect of modular teaching, allowing students to learn more intuitively, and the teaching effect is good.

[0016] 2. By turning on the supplementary lights, the lights will illuminate the area around the first and second sand table blocks, allowing students to see them more clearly and facilitating the teacher's teaching.

[0017] 3. By rotating the glass baffle in the opposite direction to close it, and pulling the locking block forward, the locking block will lock the glass baffle. At this time, under the action of the glass baffle, the glass baffle can protect the first sand table block and the second sand table block and prevent the first sand table block and the second sand table block from being damaged. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a first-part cross-sectional view of the present invention.

[0020] Figure 3 This is a cross-sectional view of the second part of the present invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the mold-separating mechanism of the present invention.

[0022] Figure 5 This is a partial cross-sectional view of the mold-separating mechanism of the present invention.

[0023] Figure 6 This is a cross-sectional view of the separation mechanism of the present invention.

[0024] Figure 7 This is a schematic diagram of the first partial three-dimensional structure of the separation mechanism of the present invention.

[0025] Figure 8 This is a three-dimensional structural diagram of the unfolded state of the separation mechanism of the present invention.

[0026] Figure 9 This is a schematic diagram of the second part of the separation mechanism of the present invention.

[0027] Figure 10 This is a partial cross-sectional view of the separation mechanism of the present invention.

[0028] Figure 11 This is an enlarged three-dimensional structural diagram of part A of the separation mechanism of the present invention.

[0029] Figure 12 This is a three-dimensional structural diagram of the locking mechanism of the present invention.

[0030] Figure 13 This is an enlarged three-dimensional structural diagram of part B of the locking mechanism of the present invention.

[0031] Figure 14 This is a three-dimensional structural diagram of the pulling mechanism of the present invention.

[0032] Figure 15 This is a three-dimensional structural diagram of the supplementary lighting mechanism of the present invention.

[0033] Figure 16 This is a cross-sectional view of the supplementary lighting mechanism of the present invention.

[0034] Figure 17 This is a three-dimensional structural diagram of the blocking mechanism of the present invention.

[0035] Figure 18 This is a partial three-dimensional structural schematic diagram of the blocking mechanism of the present invention.

[0036] In the attached diagram, the markings are as follows: 1: Base, 2: First fixing rod, 3: First connector, 4: First connecting seat, 5: Frame, 6: Torsion spring, 7: First connecting rod, 8: First sand table block, 9: Protective shell, 10: Mold parting mechanism, 101: Guide rod, 102: First slider, 103: Slide rail block, 104: First connecting spring, 105: Second slider, 106: Second sand table block, 107: Return spring, 108: First connecting block, 109: Limiting rod, 11: Separation mechanism, 111: Second fixing rod, 112: Connecting ring, 113: Second connecting block, 114: First connecting pulley, 11 5: First pull rope; 116: Rotating ring; 117: Handle; 12: Locking mechanism; 121: Third connecting block; 122: Second connecting piece; 123: Bidirectional wedge; 124: Second connecting spring; 13: Pulling mechanism; 131: Fixing block; 132: Electric slide rail; 133: Second connecting rod; 134: Second connecting pulley; 135: Second pull rope; 136: Limiting block; 14: Fill light mechanism; 141: Fixing ring; 142: Fill light; 143: Light blocking frame; 15: Blocking mechanism; 151: Second connecting seat; 152: Fourth connecting block; 153: Glass baffle; 154: Locking block. Detailed Implementation

[0037] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions herein are used to explain the present invention, but are not intended to limit the present invention.

[0038] Example 1 Please see the cross-border e-commerce teaching simulation model. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 11The system includes a base 1, a first fixed rod 2, a first connecting piece 3, a first connecting seat 4, a frame 5, a torsion spring 6, a first connecting rod 7, a first sand table block 8, a protective shell 9, a mold-separating mechanism 10, a separation mechanism 11, and a pulling mechanism 13. The top of the base 1 is welded to the first fixed rod 2. The first connecting piece 3 is slidably connected to the first fixed rod 2. There is friction between the first connecting piece 3 and the first fixed rod 2. The first connecting seat 4 is rotatably connected to the first connecting piece 3. Two torsion springs 6 are connected between the first connecting seat 4 and the first fixed rod 2. Both torsion springs 6 are sleeved on the first fixed rod 2. The right side of the first connecting seat 4 is welded to the frame 5. The right side of the frame 5 is connected to the protective shell 9. The left side wall inside the frame 5 is welded to the first connecting rod 7. The right side of the first connecting rod 7 is connected to the first sand table block 8. The mold-separating mechanism 10 is provided on the first connecting rod 7. The left side of the protective shell 9 is connected to the separation mechanism 11. The lower left side of the first fixed rod 2 is provided with the pulling mechanism 13.

[0039] Please check Figure 2 , Figure 4 and Figure 5 The mold-separating mechanism 10 includes guide rods 101, first sliders 102, slide rails 103, first connecting springs 104, second sliders 105, second sandbox blocks 106, reset springs 107, first connecting blocks 108, and limiting rods 109. Four guide rods 101 are evenly spaced on the first connecting rods 101. First sliders 102 are slidably connected to each of the four guide rods 101. First connecting springs 104 connect each of the four first sliders 102 to the first connecting rods 107. The four first connecting springs 104 are respectively sleeved on the four guide rods 101. The four first sliders 102 are spaced far apart from each other. Each of the four slide rail blocks 103 is connected to a slide rail block 103 by welding. The interior of each slide rail block 103 is slidably connected to a second slider 105. Each of the four second sliders 105 is connected to a return spring 107 between it and the adjacent slide rail block 103. Each of the four return springs 107 is sleeved on the slide rail block 103. Each of the four second sliders 105 is connected to a second sand table block 106 on its right side. Each of the four second sand table blocks 106 is connected to a first connecting block 108 on the side of the protective shell 9. Each of the four limit rods 109 is connected to the inside right side of the frame 5 at even intervals. Each of the four limit rods 109 is in contact with the adjacent first connecting block 108.

[0040] Please check Figure 1 , Figure 6 , Figure 7 and Figure 8The separation mechanism 11 includes a second fixed rod 111, a connecting ring 112, a second connecting block 113, a first connecting pulley 114, a first pull rope 115, and a rotating ring 116. Four second fixed rods 111 are evenly spaced on the left side of the frame 5. A connecting ring 112 is welded between the left sides of the four second fixed rods 111. A rotating ring 116 is rotatably connected to the connecting ring 112. There is friction between the rotating ring 116 and the connecting ring 112. A handle 117 is welded to the lower rear side of the rotating ring 116 to facilitate the teacher's rotation of the rotating ring 116. Four second connecting blocks 113 are evenly spaced and slidably connected inside the connecting ring 112. All four second connecting blocks 113 are in contact with the rotating ring 116. The left side wall inside the frame 5 is evenly spaced and welded with four first connecting pulleys 114. All four first connecting pulleys 114 are located outside the first connecting rod 7. First pull ropes 115 are connected between the upper front slide rail block 103 and the top second connecting block 113, between the lower front slide rail block 103 and the lower front second connecting block 113, between the upper rear slide rail block 103 and the upper rear second connecting block 113, and between the lower rear slide rail block 103 and the bottom second connecting block 113. The four first pull ropes 115 are in contact with the adjacent first connecting pulleys 114 respectively.

[0041] Please check Figure 1 and Figure 11 The pulling mechanism 13 includes a fixed block 131, an electric slide rail 132, a second connecting rod 133, a second connecting pulley 134, a second pull rope 135, and a limiting block 136. The fixed block 131 is welded to the lower left side of the first fixed rod 2. The electric slide rail 132 is installed on the top left side of the fixed block 131. The second connecting rod 133 is connected to the sliding part of the electric slide rail 132. The upper right side of the second connecting rod 133 is connected to the first connecting member 3. The upper right side of the first connecting member 3 is connected to the second connecting pulley 134. The upper right side of the first fixed rod 2 is connected to the frame 5 with the second pull rope 135. The second pull rope 135 is in contact with the second connecting pulley 134. The upper left side of the first connecting member 3 is welded to the limiting block 136.

[0042] Initially, the first connecting spring 104 and the return spring 107 are both in a stretched state, while the torsion spring 6 is in a deformed state. When this sand table model is needed, the rotating ring 116 is rotated, and the first connecting spring 104 is reset, causing the slide rail blocks 103, second slide rails 105, second sand table blocks 106, return springs 107, and first connecting blocks 108 on the four first sliders 102 to move to the right and reset. The four slide rail blocks 103 then pull the four second connecting blocks 113 respectively through the first pull rope 115, causing the four second connecting blocks 113 to rotate together with the rotating ring 116. Then, during the process of the four first connecting blocks 108 moving to the right, they will no longer be squeezed by the adjacent limit rods 109, thereby resetting the return spring 107 and allowing it to move to the right. The second slider 105 drives the four second sand table blocks 106 to unfold in a direction away from each other. The four second sand table blocks 106 then move sequentially to the side of the first sand table block 8, allowing them to be displayed sequentially for student learning and achieving a modular display effect. Once all four second sand table blocks 106 are unfolded, the rotating ring 116 stops rotating. At this point, the four second sand table blocks 106 combine with the first sand table block 8 to form a complete sand table model. When this sand table model is no longer needed, the rotating ring 116 is rotated in the opposite direction. The rotating ring 116 pushes the four second connecting blocks 113 to rotate in the opposite direction. The four second connecting blocks 113 then connect to the adjacent slide rail block 103 and the first slider 102 via the first pull rope 115. The second slider 105, the second sand table block 106, and the first connecting block 108 are pulled to the left, stretching the first connecting spring 104. As the four first connecting blocks 108 move to the left, the limiting rod 109 pushes the four second sand table blocks 106 towards each other through the four first connecting blocks 108. The four second sand table blocks 106 then drive the second sliders 105 on them to move towards each other, stretching the reset spring 107. As a result, all four second sand table blocks 106 move to the left and retract. Once all four second sand table blocks 106 are retracted, the reverse rotation of the rotating ring 116 stops, and then the electric slide rail 132 is activated. The electric slide rail 132 drives the first connecting member 3 to move downward through the second connecting rod 133. The first connecting piece 3 then moves the first connecting seat 4, frame 5, torsion spring 6, first connecting rod 7, first sand table block 8, protective shell 9, second connecting pulley 134, mold-separating mechanism 10, and separation mechanism 11 downwards. Consequently, the second pull rope 135 de-tensions and relaxes. The torsion spring 6 then resets and causes the first connecting seat 4, frame 5, first connecting rod 7, first sand table block 8, protective shell 9, mold-separating mechanism 10, and separation mechanism 11 to rotate upwards. When the frame 5 rotates upwards by 90 degrees, it contacts the limit block 136, at which point the electric slide rail 132 is closed. When the sand table model needs to be used, the electric slide rail 132 is activated, controlling the second connecting rod 133 to move upwards.The second connecting rod 133 then drives the first connecting piece 3 to move upward. The first connecting piece 3 then drives the first connecting seat 4, frame 5, torsion spring 6, first connecting rod 7, first sand table block 8, protective shell 9, second connecting pulley 134, mold separating mechanism 10, and separation mechanism 11 to move upward. After the frame 5 moves upward, it pulls the second pull rope 135 upward. During this upward pulling process, the second pull rope 135 will taut. At this time, under the continuous upward movement of the frame 5, the taut second... Pulling rope 135 will pull frame 5 to the right, causing frame 5 to rotate. Frame 5, in turn, will rotate the first connecting seat 4, the first connecting rod 7, the first sand table block 8, the protective shell 9, the second connecting pulley 134, the mold-separating mechanism 10, and the separation mechanism 11 together. Torsion spring 6 will deform. Afterwards, when the second connecting rod 133 moves upward to its limit position, the electric slide rail 132 will be closed. At this point, frame 5 and its components will rotate 90 degrees to the right. This sand table mold can then be used for teaching students.

[0043] Example 2 Based on Example 1, please refer to Figure 2 , Figure 9 and Figure 10 It also includes a locking mechanism 12, which includes a third connecting block 121, a second connecting member 122, a bidirectional wedge member 123, and a second connecting spring 124. The third connecting block 121 is connected to the upper rear side of the rotating ring 116. Four second connecting members 122 are welded to the upper part of the left side wall of the connecting ring 112. Bidirectional wedge members 123 are slidably connected to each of the four second connecting members 122. The third connecting block 121 contacts the adjacent bidirectional wedge member 123. A second connecting spring 124 is connected between each of the four bidirectional wedge members 123 and the adjacent second connecting member 122. The four second connecting springs 124 are respectively sleeved on the four bidirectional wedge members 123.

[0044] After rotating the rotating ring 116, the rotating ring 116 will drive the third connecting block 121 to rotate together. The first connecting spring 104 will reset and drive the slide rail blocks 103, second slide rails 105, second sand table blocks 106, reset springs 107 and first connecting blocks 108 on the four first sliders 102 to move to the right and reset. The four slide rail blocks 103 will then pull the four second connecting blocks 113 respectively through the first pull rope 115, so that the four second connecting blocks 113 will rotate together with the rotating ring 116. Then, during the process of the four first connecting blocks 108 moving to the right, they will no longer be squeezed by the adjacent limit rods 109, so the reset spring 107 will reset and drive the four second sand table blocks 106 to unfold in a direction away from each other through the second slider 105. Subsequently, as the third connecting block 121 continues to rotate, it will contact the fourth bidirectional wedge 123 from the front. Then, the teacher stops rotating the rotating ring 116. At this time, the second sand table block 106 on the upper rear side will move next to the first sand table block 8 and combine with it. The teacher can then teach the students through the second sand table block 106 on the rear side. When it is necessary to bring out the other three second sand table blocks 106, the above operation is repeated, causing the rotating ring 116 to drive the third connecting block 121 to rotate. When the third connecting block 121 continues to rotate, it will squeeze the bidirectional wedge 123 at the current position to the left, compressing the second connecting spring 124. Subsequently, as the third connecting block 121 continues to rotate, it will contact the fourth bidirectional wedge 123 from the front. When the first connecting spring 124 disengages from the contact point 123, it resets and causes the fourth bidirectional wedge 123 (counting from the front) to move to the right and reset. Then, when the third connecting block 121 contacts the third bidirectional wedge 123 (counting from the front), the next second sand table block 106 moves to the side of the first sand table block 8 and combines with it. This process is repeated until the next two second sand table blocks 106 are brought out for teaching. Finally, when all four second sand table blocks 106 are retracted, the rotating ring 116 is rotated in the opposite direction. The rotating ring 116 causes the third connecting block 121 to rotate in the opposite direction. After the third connecting block 121 rotates in the opposite direction, it pushes the contacted bidirectional wedge 123 to the left. When 24 is compressed, the third connecting block 121 will disengage from the contacting bidirectional wedge 123. The second connecting spring 124 will reset and drive the bidirectional wedge 123 to move to the right to reset. At the same time, the rotating ring 116 will rotate in the opposite direction and push the four second connecting blocks 113 to rotate in the opposite direction. The four second connecting blocks 113 will then pull the adjacent slide rail block 103, the first slider 102, the second slider 105, the second sand table block 106, and the first connecting block 108 to the left through the first pull rope 115. The first connecting spring 104 will stretch. As the four first connecting blocks 108 move to the left, the limiting rod 109 will push the four second sand table blocks 106 towards each other through the four first connecting blocks 108.The four second sand table blocks 106 drive their respective second sliders 105 to move towards each other, stretching the return spring 107. This causes all four second sand table blocks 106 to move backward and downward and retract. Once all four second sand table blocks 106 are retracted, the reverse rotation of the rotating ring 116 stops.

[0045] Example 3 Based on Example 2, please see Figure 1 , Figure 12 and Figure 13 It also includes a supplementary lighting mechanism 14, which includes a fixing ring 141, a supplementary light 142, and a light-blocking frame 143. Six fixing rings 141 are evenly spaced and welded together on the right side of the frame 5. Supplementary lights 142 are installed between the six fixing rings 141. The light-blocking frame 143 is welded together on the right side of the frame 5. The supplementary light 142 and the six fixing rings 141 are all located inside the light-blocking frame 143.

[0046] When it is necessary for students to see the first sand table block 8 and the second sand table block 106 more clearly, the supplementary light 142 is turned on. The supplementary light 142 will illuminate the area around the first sand table block 8 and the second sand table block 106, so that students can see the first sand table block 8 and the second sand table block 106 more clearly, which brings convenience to the teacher's teaching. When it is not necessary to illuminate the first sand table block 8 and the second sand table block 106, the supplementary light 142 can be turned off.

[0047] Example 4 Based on Example 3, please see Figure 1 , Figure 14 and Figure 15 It also includes a blocking mechanism 15, which includes a second connecting seat 151, a fourth connecting block 152, a glass baffle 153, and a locking block 154. The second connecting seat 151 is welded to the front right side of the light blocking frame 143. The fourth connecting block 152 is rotatably connected to the second connecting seat 151. The glass baffle 153 is connected to the rear side of the fourth connecting block 152. The locking block 154 is slidably connected to the rear right side of the light blocking frame 143. The locking block 154 contacts the glass baffle 153.

[0048] When cleaning the first sand table block 8 and the second sand table block 106 is required, move the locking block 154 backward so that it no longer contacts the glass baffle 153. Then rotate the glass baffle 153 forward to open it. The glass baffle 153 drives the fourth connecting block 152 to rotate together. Then clean the first sand table block 8 and the second sand table block 106. After cleaning, rotate the glass baffle 153 in the opposite direction to close it. The glass baffle 153 drives the fourth connecting block 152 to rotate in the opposite direction. Then pull the locking block 154 forward so that it locks the glass baffle 153. At this time, under the action of the glass baffle 153, the glass baffle 153 can protect the first sand table block 8 and the second sand table block 106 and prevent students from accidentally touching the first sand table block 8 and the second sand table block 106 and causing damage to them.

[0049] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A cross-border e-commerce teaching sand table model, comprising a base (1), a first fixed rod (2), a first connector (3), a first connecting seat (4), a frame (5), a torsion spring (6), a first connecting rod (7), a first sand table block (8), and a protective shell (9), wherein the top of the base (1) is connected to the first fixed rod (2), the first connector (3) is slidably connected to the first fixed rod (2), there is friction between the first connector (3) and the first fixed rod (2), the first connecting seat (4) is rotatably connected to the first connector (3), two torsion springs (6) are connected between the first connecting seat (4) and the first fixed rod (2), both torsion springs (6) are sleeved on the first fixed rod (2), the right side of the first connecting seat (4) is connected to the frame (5), the right side of the frame (5) is connected to the protective shell (9), the left side wall inside the frame (5) is connected to the first connecting rod (7), and the right side of the first connecting rod (7) is connected to the first sand table block (8), characterized in that: It also includes a mold-separating mechanism (10), a separation mechanism (11) and a pulling mechanism (13). The mold-separating mechanism (10) is provided on the first connecting rod (7), the separation mechanism (11) is connected to the left side of the protective shell (9), and the pulling mechanism (13) is provided on the lower left side of the first fixed rod (2). The mold-separating mechanism (10) includes a guide rod (101), a first slider (102), a slide block (103), a first connecting spring (104), a second slider (105), a second sandbox block (106), a reset spring (107), a first connecting block (108), and a limiting rod (109). Four guide rods (101) are evenly spaced on the first connecting rod (7). The first sliders (102) are slidably connected to the four guide rods (101). The first connecting springs (104) are connected between the four first sliders (102) and the first connecting rod (7). The four first connecting springs (104) are respectively sleeved on the four guide rods (101). The four first sliders (102) are far apart from each other. One end of each slide block (103) is connected to a slide block (103). The interior of each slide block (103) is slidably connected to a second slider (105). Each of the four second sliders (105) is connected to a return spring (107) between it and the adjacent slide block (103). Each of the four return springs (107) is sleeved on the slide block (103). Each of the four second sliders (105) is connected to a second sand table block (106) for students to view. Each of the four second sand table blocks (106) is connected to a first connecting block (108) on the side of the protective shell (9). Each of the four limit rods (109) is connected to the inside right side of the frame (5) at even intervals. Each of the four limit rods (109) is in contact with the adjacent first connecting block (108). The separation mechanism (11) includes a second fixed rod (111), a connecting ring (112), a second connecting block (113), a first connecting pulley (114), a first pull rope (115), and a rotating ring (116). Four second fixed rods (111) are evenly spaced on the left side of the frame (5). A connecting ring (112) is connected between the left sides of the four second fixed rods (111). A rotating ring (116) is rotatably connected to the connecting ring (112). There is friction between the rotating ring (116) and the connecting ring (112). Four second connecting blocks (113) are evenly spaced and slidably connected inside the connecting ring (112). All four second connecting blocks (113) are connected to the rotating ring. (116) Contact, four first connecting pulleys (114) are evenly spaced on the left side wall inside the frame (5). The four first connecting pulleys (114) are all located outside the first connecting rod (7). The upper front slide block (103) is connected to the top second connecting block (113), the lower front slide block (103) is connected to the lower front second connecting block (113), the upper rear slide block (103) is connected to the upper rear second connecting block (113), and the lower rear slide block (103) is connected to the bottom second connecting block (113). The four first pull ropes (115) are in contact with the adjacent first connecting pulleys (114). The pulling mechanism (13) includes a fixed block (131), an electric slide rail (132), a second connecting rod (133), a second connecting pulley (134), a second pull rope (135), and a limiting block (136). The fixed block (131) is connected to the lower left side of the first fixed rod (2). The electric slide rail (132) is installed on the top left side of the fixed block (131). The sliding part of the electric slide rail (132) is connected to the second connecting rod (133) for pulling the first connecting member (3). The upper right side of the second connecting rod (133) is connected to the first connecting member (3). The upper right side of the first connecting member (3) is connected to the second connecting pulley (134). The upper right side of the first fixed rod (2) is connected to the frame (5). The second pull rope (135) is in contact with the second connecting pulley (134). The upper left side of the first connecting member (3) is connected to the limiting block (136) for limiting the rotation angle of the frame (5).

2. The cross-border e-commerce teaching sandbox model according to claim 1, characterized in that: It also includes a locking mechanism (12), which includes a third connecting block (121), a second connecting piece (122), a bidirectional wedge (123), and a second connecting spring (124). The upper rear side of the rotating ring (116) is connected to the third connecting block (121), and the upper part of the left side wall of the connecting ring (112) is connected to four second connecting pieces (122). Each of the four second connecting pieces (122) is slidably connected to a bidirectional wedge (123). The third connecting block (121) contacts the adjacent bidirectional wedge (123), and each of the four bidirectional wedges (123) is connected to the adjacent second connecting piece (122) with a second connecting spring (124). The four second connecting springs (124) are respectively sleeved on the four bidirectional wedges (123).

3. The cross-border e-commerce teaching sandbox model according to claim 2, characterized in that: It also includes a supplementary lighting mechanism (14) for supplementing the lighting around the first sand table block (8) and the second sand table block (106). The supplementary lighting mechanism (14) includes a fixing ring (141), a supplementary light (142) and a light-blocking frame (143). Six fixing rings (141) are evenly spaced on the right side of the frame (5). Supplementary lights (142) are installed between the six fixing rings (141). The light-blocking frame (143) is connected to the right side of the frame (5). The supplementary light (142) and the six fixing rings (141) are all located inside the light-blocking frame (143).

4. The cross-border e-commerce teaching sandbox model according to claim 3, characterized in that: It also includes a blocking mechanism (15) for preventing the first sand table block (8) and the second sand table block (106) from being impacted. The blocking mechanism (15) includes a second connecting seat (151), a fourth connecting block (152), a glass baffle (153) and a locking block (154). The second connecting seat (151) is connected to the front right side of the light blocking frame (143). The fourth connecting block (152) is rotatably connected to the second connecting seat (151). The glass baffle (153) for protecting the first sand table block (8) and the second sand table block (106) is connected to the rear side of the fourth connecting block (152). The locking block (154) is slidably connected to the rear right side of the light blocking frame (143). The locking block (154) contacts the glass baffle (153).

5. The cross-border e-commerce teaching sandbox model according to claim 4, characterized in that: A handle (117) is attached to the lower rear side of the rotating ring (116).

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