Auxiliary teaching device for teaching

Abstract

The present invention relates to an auxiliary teaching device for teaching and giving lessons, comprising a mounting shaft, on which two unfolding mechanisms are detachably sleeved, the two unfolding mechanisms are symmetrically arranged about a straight line perpendicular to the axis of the mounting shaft, a covering layer is arranged on the two unfolding mechanisms, a driving mechanism is arranged between the two unfolding mechanisms, the two unfolding mechanisms move in opposite directions under their own gravity and the driving action of the driving mechanism, the two unfolding mechanisms are spherical when unfolded, and the covering layer unfolds accordingly to cover the surface of the unfolding mechanism, a cylinder is arranged in the mounting shaft, and when the driving mechanism moves, it drives the cylinder to blow gas into the covering layer.

Description

[Technical field]

[0001] The invention relates to the field of teaching equipment, in particular to an auxiliary teaching device for teaching. [Background technology]

[0002] Teaching equipment is a common equipment that assists educators to better teach students knowledge. In geography classes, globes are common educational equipment that help students understand the earth more intuitively. However, existing globes are spherical structures with large volumes, which are inconvenient for both students and teachers to carry and place. In addition, such globes take up a large space during transportation from the production site to the sales site, and are easily crushed, which increases the transportation cost. Therefore, it is urgent to design a globe for teaching that can be easily carried and transported. [Summary of the invention]

[0003] The purpose of the present invention is to provide a globe for teaching and lectures that can be conveniently carried and transported, in view of the problem that globes in the prior art are difficult to carry and transport.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an auxiliary teaching device for teaching, comprising a mounting shaft, on which two unfolding mechanisms are detachably sleeved, and the two unfolding mechanisms are symmetrically arranged about a straight line perpendicular to the axis of the mounting shaft, and a covering layer is arranged on the two unfolding mechanisms, and a driving mechanism is arranged between the two unfolding mechanisms. The two unfolding mechanisms move in opposite directions under their own gravity and the driving action of the driving mechanism, and the two unfolding mechanisms are spherical when unfolded, and the covering layer unfolds accordingly to cover the surface of the unfolding mechanism, and a cylinder is arranged in the mounting shaft, and when the driving mechanism moves, it drives the cylinder to blow gas into the covering layer.

[0005] Preferably, a cylindrical lifting cavity is provided in the installation shaft, and two strip-shaped lifting grooves are symmetrically provided on the inner wall of the lifting cavity, and the lifting grooves are connected to the external space. The driving mechanism includes a threaded rod rotatably connected to the bottom of the lifting cavity, and the bottom end of the threaded rod is fixedly connected to the output end of the motor. A movable sleeve is threadedly connected to the threaded rod, and two abutment rods are symmetrically fixedly connected to the circumferential side of the movable sleeve, and each of the abutment rods passes through an adjacent lifting groove and extends into the external space.

[0006] Preferably, a circular ring is connected between the two unfolding mechanisms, and the unfolding mechanism includes at least two first telescopic rods hinged on the circular ring, the first telescopic rod is hinged on one end close to the mounting shaft with a first mounting ring, the inner ring surface of the first mounting ring is evenly and fixedly connected with at least two first connecting rods along the circumferential direction, the first connecting rod is fixedly connected with a first lifting assembly at one end close to the mounting shaft, at least two second telescopic rods are hinged on the first mounting ring, the second telescopic rod is fixedly connected with a second mounting ring at one end close to the mounting shaft, at least two second connecting rods are evenly and fixedly connected to the mounting ring along the circumferential direction, the second connecting rod is fixedly connected with a second lifting assembly at one end close to the mounting shaft, at least two third telescopic rods are evenly and fixedly connected to the second mounting ring along the circumferential direction, and the telescopic rod is fixedly connected with the third lifting assembly at one end close to the mounting shaft.

[0007] Preferably, the first lifting assembly includes a lifting ring sleeved on the mounting shaft, the inner ring surface of the lifting ring is symmetrically provided with two lifting components, the lifting components include two mounting plates fixedly connected to the inner ring surface of the lifting ring, a fixed shaft is fixedly connected between the two mounting plates, an abutment plate is rotatably sleeved on the fixed shaft, the abutment plate can abut against the abutment rod, and a torsion spring is connected between the abutment plate and the mounting plate.

[0008] Preferably, the first lifting assembly, the second lifting assembly and the third lifting assembly have the same structure.

[0009] Preferably, the covering layer includes a covering surface fixedly connected to the circular ring, the first mounting ring and the second mounting ring, and also includes a closed ring symmetrically slidably sleeved on the mounting shaft up and down, the covering surface is fixedly connected to the closed ring, and the closed ring is sealingly connected to the mounting shaft.

[0010] Preferably, the upper half of the threaded rod is provided with a forward thread, the lower half of the threaded rod is provided with a reverse thread, the lower half of the threaded rod is threadedly connected to a threaded block, the bottom of the lower half of the threaded rod is an optical axis, the cylinder includes a sliding plate slidably sleeved on the lower half of the threaded rod, the sliding plate is sealingly and slidably connected to the threaded rod and the inner wall of the lifting chamber, a linkage rod is fixedly connected between the sliding plate and the threaded block, the lower half of the lifting chamber is connected to an air hole, the air hole is connected to the external space, and the air hole is located on the upper side of the closed ring on the lower side.

[0011] Preferably, the bottom end of the mounting shaft is detachably connected to a support, the motor is fixedly mounted in the support, and the output end of the motor extends into the lifting cavity and is fixedly connected to the threaded rod.

[0012] The advantages of the present invention are:

[0013] Through the detachable connection between the unfolding mechanism 2 and the mounting shaft 1, the device can be disassembled during transportation, which is convenient for transportation. When the unfolding mechanism 2 is installed on the mounting shaft 1, the driving mechanism 3 can drive the unfolding mechanism 2 to unfold into a spherical shape. At the same time, the covering layer 21 covers the unfolded unfolding mechanism 2 to meet the user's normal use needs of the globe. At the same time, during the unfolding process of the unfolding mechanism 2, the cylinder 4 inflates the covering layer 21 and cooperates with the unfolding mechanism 2 to unfold the covering layer 21 into a spherical shape.

Brief Description of the Drawings

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 is a top view of the present invention;

[0016] Figure 3 The present invention Figure 2 Isometric section view at AA;

[0017] Figure 4 It is an isometric structural cross-sectional view of the mounting shaft 1 of the present invention;

[0018] Figure 5 The present invention Figure 4 A partial enlarged view of point B in the middle;

[0019] Figure 6 It is a schematic diagram of the initial state of the deployment mechanism of the present invention;

[0020] Figure 7 The present invention Figure 6 A top view of

[0021] Figure 8 The present invention Figure 7 Isometric section view at mid-CC;

[0022] Fig. 9 The present invention Figure 8 A partial enlarged view of point D in the middle;

[0023] Fig.10 The present invention Figure 8 A partial enlarged view of point E in the middle;

[0024] Fig.11 It is a schematic diagram of the unfolding state of the unfolding mechanism of the present invention.

[0025] The reference numerals and components involved in the accompanying drawings are as follows: 1. Mounting shaft; 11. Lifting chamber; 12. Lifting slot; 2. Unfolding mechanism; 21. Coating layer; 211. Coating surface; 212. Closing ring; 22. First mounting ring; 23. First connecting rod; 241. Lifting ring; 243. Mounting plate; 244. Fixed shaft; 245. Abutment plate; 246. Torsion spring; 25. Second telescopic rod; 26. Second mounting ring; 27. Second connecting rod; 28. Third telescopic rod; 3. Driving mechanism; 31. Threaded rod; 32. Moving sleeve; 33. Abutment rod; 34. Motor; 35. Sliding plate; 36. Linkage rod; 4. Cylinder; 5. Ring; 6. Support. [Specific implementation method]

[0026] The specific implementation modes provided by the present invention are described in detail below with reference to the accompanying drawings.

[0027] The following will be combined with the attached Figures 1 to 11 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1 , 3 As shown, the present invention is an auxiliary teaching device for teaching, comprising a mounting shaft 1, on which two unfolding mechanisms 2 are detachably sleeved, and the two unfolding mechanisms 2 are symmetrically arranged about a straight line perpendicular to the axis of the mounting shaft 1, and a coating layer 21 is arranged on the two unfolding mechanisms 2, and a driving mechanism 3 is arranged between the two unfolding mechanisms 2. The two unfolding mechanisms 2 move in opposite directions under their own gravity and the driving action of the driving mechanism 3. When the two unfolding mechanisms 2 are unfolded, they are spherical, and the coating layer 21 unfolds accordingly to cover the surface of the unfolding mechanism 2. A cylinder 4 is arranged in the mounting shaft 1, and when the driving mechanism 3 moves, it drives the cylinder 4 to blow gas into the coating layer 21.

[0029] Through the detachable connection between the unfolding mechanism 2 and the mounting shaft 1, the device can be disassembled during transportation, which is convenient for transportation. When the unfolding mechanism 2 is installed on the mounting shaft 1, the driving mechanism 3 can drive the unfolding mechanism 2 to unfold into a spherical shape. At the same time, the covering layer 21 covers the unfolded unfolding mechanism 2 to meet the user's normal use needs of the globe. At the same time, during the unfolding process of the unfolding mechanism 2, the cylinder 4 inflates the covering layer 21 and cooperates with the unfolding mechanism 2 to unfold the covering layer 21 into a spherical shape.

[0030] Further, such as Figure 4 , 5 As shown, a cylindrical lifting chamber 11 is provided in the installation shaft 1, and two strip-shaped lifting grooves 12 are symmetrically provided on the inner wall of the lifting chamber 11, and the lifting grooves 12 are communicated with the external space. The driving mechanism 3 includes a threaded rod 31 rotatably connected to the bottom of the lifting chamber 11, and the bottom end of the threaded rod 31 is fixedly connected to the output end of the motor 34. A movable sleeve 32 is threadedly connected to the threaded rod 31, and two abutment rods 33 are symmetrically fixedly connected to the circumferential side surface of the movable sleeve 32, and each of the abutment rods 33 passes through the adjacent lifting grooves 12 and extends into the external space.

[0031] Further, such as Figure 3 , 6 As shown in , 7, 8, 9, and 11, a ring 5 is connected between the two unfolding mechanisms 2, and the unfolding mechanism 2 includes eight first telescopic rods 21 hinged on the ring 5, and one end of the eight first telescopic rods 21 close to the mounting shaft 1 is hinged with a first mounting ring 22, and the inner ring surface of the first mounting ring 22 is evenly and fixedly connected with six first connecting rods 23 along the circumferential direction, and one end of the six first connecting rods 23 close to the mounting shaft 1 is fixedly connected with a first lifting assembly, and the first lifting assembly includes a lifting ring 241 sleeved on the mounting shaft 1, and the inner ring surface of the lifting ring 241 is symmetrically provided with two lifting components, and the lifting component includes two mounting plates 243 fixedly connected to the inner ring surface of the lifting ring 241, and the two mounting plates 243 are fixedly connected between them. There is a fixed shaft 244, on which an abutment plate 245 is rotatably sleeved, and the abutment plate 245 can abut against the abutment rod 33, and a torsion spring 246 is connected between the abutment plate 245 and the mounting plate 243; eight second telescopic rods 25 are hinged on the first mounting ring 22, and one end of the eight second telescopic rods 25 close to the mounting shaft 1 is fixedly connected to the second mounting ring 26, and six second connecting rods 27 are evenly fixedly connected to the mounting ring 26 along the circumferential direction, and one end of the six second connecting rods 27 close to the mounting shaft 1 is fixedly connected to the second lifting assembly, and eight third telescopic rods 28 are evenly fixedly connected to the second mounting ring 26 along the circumferential direction, and one end of the telescopic rods 28 close to the mounting shaft 1 is fixedly connected to the third lifting assembly.

[0032] It should be noted that the first lifting assembly, the second lifting assembly and the third lifting assembly have the same structure.

[0033] When it is necessary to unfold the unfolding mechanism 2, the motor 34 is started, and the output end of the motor 34 drives the threaded rod 31 to rotate, and the threaded rod 31 drives the movable sleeve 32 to move upward, and the movable sleeve 32 drives the abutment rod 33 to move upward, and the abutment rod 33 first abuts against the abutment plate 245 in the first lifting assembly, and drives the first mounting ring 23 to move upward through the abutment plate 245, and the first mounting ring 23 drives the first telescopic rod 21 to stretch, and when the first telescopic rod 21 is stretched to the limit distance, since the first mounting ring 23 no longer moves upward, the abutment plate 245 is flipped to When the abutment rod 33 is about to be out of contact with the abutment rod 33, as the abutment rod 33 continues to move upward, the abutment rod 33 is disengaged from the abutment plate 245 in the first lifting assembly, and then abuts against the abutment plate 245 in the second lifting assembly. The above action is repeated. When the second telescopic rod 25 is stretched to the limit distance, the abutment rod 33 is disengaged from the abutment plate 245, thereby abutting against the abutment plate 245 in the third lifting assembly, thereby driving the third lifting assembly to move upward; at the same time, the unfolding mechanism 2 on the lower side is freely unfolded due to the action of gravity, thereby realizing the unfolding of the entire unfolding mechanism to form a spherical shape.

[0034] Further, such as Figure 3 As shown, the covering layer 21 includes a covering surface 211 fixedly connected to the circular ring 5, the first mounting ring 23 and the second mounting ring 26, and also includes a closed ring 212 symmetrically slidably sleeved on the mounting shaft 1, the covering surface 211 is fixedly connected to the closed ring 212, and the closed ring 212 is sealedly connected to the mounting shaft 1.

[0035] Further, such as Figure 3 , 9 As shown in 10, the upper half of the threaded rod 31 is provided with a forward thread, the lower half of the threaded rod 31 is provided with a reverse thread, the lower half of the threaded rod 31 is threadedly connected with a threaded block, the bottom of the lower half of the threaded rod 31 is an optical axis, the cylinder 4 includes a sliding plate 35 slidably sleeved on the lower half of the threaded rod 31, the sliding plate 35 is sealingly and slidably connected to the threaded rod 31 and the inner wall of the lifting chamber 11, a linkage rod 36 is fixedly connected between the sliding plate 35 and the threaded block, the lower half of the lifting chamber 11 is connected with an air hole, the air hole is connected with the external space, and the air hole is located on the upper side of the closed ring 212 on the lower side.

[0036] When the threaded rod 31 rotates, the threaded rod 31 drives the threaded block to move downward, and the threaded block drives the sliding plate 35 to move downward through the linkage rod 36, so that the gas in the lower half of the lifting chamber 11 is discharged through the air holes, so that the gas enters the coating layer 21, thereby causing the coating layer 21 to bulge.

[0037] like Figure 1 , 3 As shown, the bottom end of the mounting shaft 1 is detachably connected to a support 6 , the motor 34 is fixedly mounted in the support 6 , and the output end of the motor 34 extends into the lifting cavity 11 and is fixedly connected to the threaded rod 31 .

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the method of the present invention. These improvements and supplements should also be regarded as the scope of protection of the present invention.

Claims

1. An auxiliary teaching device for teaching, characterized in that: It comprises a mounting shaft, on which two unfolding mechanisms are detachably sleeved, the two unfolding mechanisms are symmetrically arranged about a straight line perpendicular to the axis of the mounting shaft, a coating layer is arranged on the two unfolding mechanisms, a driving mechanism is arranged between the two unfolding mechanisms, the two unfolding mechanisms move in opposite directions under their own gravity and the driving action of the driving mechanism, the two unfolding mechanisms are spherical when unfolded, and the coating layer unfolds accordingly to cover the surface of the unfolding mechanism, a cylinder is arranged in the mounting shaft, and when the driving mechanism moves, the cylinder is driven to blow gas into the coating layer; A cylindrical lifting cavity is provided in the installation shaft, and two strip-shaped lifting grooves are symmetrically provided on the inner wall of the lifting cavity, and the lifting grooves are communicated with the external space. The driving mechanism comprises a threaded rod rotatably connected to the bottom of the lifting cavity, and the bottom end of the threaded rod is fixedly connected to the output end of the motor, and a moving sleeve is threadedly connected to the threaded rod, and two abutment rods are symmetrically fixedly connected to the circumferential side surface of the moving sleeve, and each of the abutment rods penetrates the adjacent lifting grooves and extends into the external space; A circular ring is connected between the two unfolding mechanisms, and the unfolding mechanism includes at least two first telescopic rods hinged on the circular ring, one end of the first telescopic rod close to the mounting shaft is hinged to the first mounting ring, at least two first connecting rods are evenly fixedly connected to the inner ring surface of the first mounting ring along the circumferential direction, one end of the first connecting rod close to the mounting shaft is fixedly connected to the first lifting assembly, at least two second telescopic rods are hinged on the first mounting ring, one end of the second telescopic rod close to the mounting shaft is fixedly connected to the second mounting ring, at least two second connecting rods are evenly fixedly connected to the mounting ring along the circumferential direction, one end of the second connecting rod close to the mounting shaft is fixedly connected to the second lifting assembly, at least two third telescopic rods are evenly fixedly connected to the second mounting ring along the circumferential direction, and one end of the telescopic rod close to the mounting shaft is fixedly connected to the third lifting assembly; The first lifting assembly comprises a lifting ring sleeved on the mounting shaft, the inner ring surface of the lifting ring is symmetrically provided with two lifting components, the lifting components comprise two mounting plates fixedly connected to the inner ring surface of the lifting ring, a fixed shaft is fixedly connected between the two mounting plates, an abutment plate is rotatably sleeved on the fixed shaft, the abutment plate can abut against the abutment rod, and a torsion spring is connected between the abutment plate and the mounting plate; The coating layer includes a coating surface fixedly connected to the circular ring, the first mounting ring and the second mounting ring, and also includes a closed ring symmetrically slidably sleeved on the mounting shaft, the coating surface is fixedly connected to the closed ring, and the closed ring is sealingly connected to the mounting shaft; The upper half of the threaded rod is provided with a forward thread, the lower half of the threaded rod is provided with a reverse thread, the lower half of the threaded rod is threadedly connected to a threaded block, the bottom of the lower half of the threaded rod is an optical axis, the cylinder includes a sliding plate slidably sleeved on the lower half of the threaded rod, the sliding plate is sealingly and slidingly connected to the threaded rod and the inner wall of the lifting chamber, a linkage rod is fixedly connected between the sliding plate and the threaded block, the lower half of the lifting chamber is connected with an air hole, the air hole is connected to the external space, and the air hole is located on the upper side of the closed ring on the lower side.

2. The auxiliary teaching device for teaching according to claim 1, characterized in that: The first lifting assembly, the second lifting assembly and the third lifting assembly have the same structure.

3. The auxiliary teaching device for teaching according to claim 1, characterized in that: The bottom end of the mounting shaft is detachably connected to a support, the motor is fixedly mounted in the support, and the output end of the motor extends into the lifting cavity and is fixedly connected to the threaded rod.

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