Combined mechanical rod system mechanism motion display teaching aid and use method thereof

Abstract

The invention discloses a combined mechanical rod system mechanism motion display teaching aid and a use method, and the teaching aid comprises an installation plate which is used for installing and displaying a plurality of mechanical rod system mechanisms through a plurality of mechanism display adjustment assemblies; the overall adjusting device comprises an axial rotation adjusting mechanism and an inclination adjusting mechanism. Thus, through convenient installation of the mechanism display adjusting assembly on the installation plate, a motion mechanism can be rapidly built, adjusted and designed on site, motion display of different mechanical rod system mechanisms is achieved, and display of an axonometric drawing of the mechanical rod system mechanism to be taught can be achieved through the axial rotation adjusting mechanism and the inclination adjusting mechanism. The mechanism movement display device is convenient and fast to install, reusable, high in interestingness, capable of achieving plane display and multi-angle mechanism movement display of a three-dimensional space structure at the same time, convenient for students to understand the three-dimensional space of the whole mechanism, beneficial to classroom teaching, capable of improving the teaching quality and convenient to use, and therefore the interest of the students in learning mechanical innovation design is aroused.

Description

Technical Field

[0001] The present invention relates to the technical field of teaching instruments, and in particular to a combined mechanical rod system mechanism motion display teaching aid and a use method thereof. Background Art

[0002] Mechanics is a discipline that studies mechanisms and machines. It is a basic technical course that plays an important role in paving the way for in-depth study of mechanical disciplines in the future. The mechanism is the main body that performs mechanical motion in the machine, so the course of mechanical innovation design mainly focuses on the innovation of the mechanism. Any complex mechanism is composed of basic mechanisms. The basic mechanism is combined into various mechanical systems through basic rod groups to complete the corresponding actions. In the mechanics principle class, the existing explanations of various mechanical mechanisms are mostly based on pictures or calculation software. The theory is too strong, the description of the textbook text is boring, and the movement trajectory of the mechanism cannot be effectively displayed. This kind of teaching method is abstract and rigid, especially when explaining the three-dimensional pictures of the mechanism in the book, it is difficult for students to understand, and the existing courseware content is boring and single, which is not easy to interact with students, and the teaching effect is not good.

[0003] Therefore, in order to enable students to understand and know the mechanism more intuitively, the demonstration and guidance of teaching aids is very important. At present, large-scale mechanical principle teaching aid models in laboratories are often used, which are more suitable for visits and inconvenient to carry to the classroom to interact with students. In addition, they are expensive. Teaching aids that only demonstrate one mechanism have single functions and cannot be quantitatively analyzed. Summary of the invention

[0004] In order to solve the technical problems existing in the background technology, the present invention proposes a combined mechanical rod mechanism motion display teaching aid.

[0005] The present invention provides a combined mechanical rod mechanism motion display teaching aid, comprising:

[0006] A mounting plate, for mounting and displaying a plurality of mechanical rod-type mechanisms through a plurality of mechanism display and adjustment components, wherein the mechanism display and adjustment components are detachably connected to the mounting plate, and the mechanical rod-type mechanisms are detachably connected to the mechanism display and adjustment components;

[0007] The overall adjustment device includes an axial rotation adjustment mechanism and a tilt adjustment mechanism. The output shaft end of the axial rotation adjustment mechanism is fixed to the lower end of the mounting plate to drive the mounting plate to rotate. The tilt adjustment mechanism is fixed to the axial rotation adjustment mechanism to drive the overall front and rear tilt angle of the steering adjustment mechanism, thereby adjusting the front and rear tilt angle of the mounting plate.

[0008] Preferably, each of the mechanism display adjustment components comprises a positioning adjustment frame and a support adjustment component, the lower end of the positioning adjustment frame is detachably connected to the upper end of the mounting plate, and the support adjustment component is detachably mounted on the positioning adjustment frame.

[0009] Preferably, the positioning and adjustment frame is configured as a hollow tube body structure, and a plurality of groups of mounting perforation groups are provided on the outer side of the hollow tube body, each group of the mounting perforation groups includes a plurality of mounting holes, and the plurality of mounting holes are distributed around the hollow tube body, and the plurality of groups of the mounting perforation groups are arranged along the length direction of the hollow tube body, and the support adjustment component includes an adjusting through rod and an adjusting member, one end of the adjusting through rod is clamped in the mounting hole, and the adjusting member is positioned and positionally adjusted on the adjusting through rod by a positioning pin, and the mechanical rod system mechanism is detachably mounted on the adjusting member.

[0010] Preferably, the axial rotation adjustment mechanism includes an outer frame and a rotation drive device, the rotation drive device is arranged in the outer frame, and the upper end of the output shaft of the rotation drive device is coaxially fixedly connected to the lower end of the mounting plate to drive the mounting plate to rotate axially.

[0011] Preferably, the rotation driving device comprises a driving motor and a reduction mechanism, and the driving motor and the reduction mechanism are connected via a belt transmission.

[0012] Preferably, the overall adjustment device also includes a bracket and a positioning through rod, the bracket is a U-shaped frame structure with a front opening, the axial rotation adjustment mechanism extends into the bracket from the front opening of the U-shaped frame structure, the two ends of the positioning through rod are positioned and rotatably connected to the upper end of the bracket through a connecting piece, and the lower end of the middle part of the positioning through rod is fixedly connected to the upper part of the outer frame.

[0013] Preferably, the tilt adjustment mechanism comprises a rocker arm, a rotating positioning arm and a rotating arm, the rocker arm is fixedly connected to one end of the positioning through rod, one end of the rotating positioning arm is connected to the lower positioning and rotating connection of the bracket, and the other end is rotatably connected to one end of the rotating arm, and the other end of the rotating arm is rotatably connected to the positioning through rod, the rotating positioning arm is configured as a telescopic sleeve structure in which an outer sleeve and an inner sleeve are mutually sleeved, the upper end of the inner sleeve is rotatably connected to the rotating arm, and the lower end of the outer sleeve is connected to the lower positioning and rotating connection of the bracket, and the positioning of the inner sleeve and the outer sleeve is achieved by passing a pin through the through holes on the outer sleeve and the inner sleeve to adjust the effective length of the rotating positioning arm; the positioning through rod is driven to rotate by rotating the rocker arm, and the positioning through rod drives the outer frame to rotate to adjust the front and rear inclination angle of the axial rotation adjustment mechanism, and then the effective length of the rotating positioning arm at this time is fixed by the pin to fix the front and rear inclination angle of the axial rotation adjustment mechanism.

[0014] Preferably, the adjusting member on which the bionic mechanical rod group is installed is also provided with a chalk positioning assembly, on which is fixed a device capable of drawing the motion trajectory of the bionic mechanical rod group on a drawing board, and the drawing board is fixed on the mechanism display adjusting assembly close to the bionic mechanical rod group.

[0015] Preferably, the overall adjustment device also includes a height adjustment frame, which is sleeved in the lower part of the bracket and is provided with a plurality of positioning holes arranged along the height direction. The bracket is provided with a plurality of adjustment holes along the height direction, and the positioning pins are passed through the adjustment holes and inserted into the positioning holes to achieve positioning between the bracket and the height adjustment frame to adjust the overall height.

[0016] The present invention also proposes a method for using a combined mechanical rod system mechanism motion display teaching aid, based on any of the combined mechanical rod system mechanism motion display teaching aids described above, comprising the following steps:

[0017] S1. Adjust the positioning position of the height adjustment frame and assemble the teaching aid components into the required mechanical rod system;

[0018] S2. Install the positioning adjustment frame on the mounting plate and adjust the direction of the mounting holes;

[0019] S3. Position and install the adjustment rod in the mounting hole on the positioning adjustment frame, install the connecting end of the mechanical rod system mechanism onto the adjustment rod through the adjusting piece, and teach the connection method between the mechanical rod system mechanisms;

[0020] S4. According to the movement law of the mechanical rod system mechanism to be explained, adjust the tightness of the adjusting parts to achieve relative fixation and relative movement between the rod systems, and teach and demonstrate the dynamic movement process of the rod system;

[0021] S5. After the explanation, disassemble and store the teaching aid components.

[0022] In summary, the present invention has the following beneficial effects: through the convenient installation of the mechanism display adjustment component on the mounting plate, the motion mechanism can be quickly built, adjusted and designed on site, and the motion display of various mechanical rod systems can be realized, and the axonometric diagram of the mechanical rod system mechanism to be taught can be realized through the axial rotation adjustment mechanism and the tilt adjustment mechanism. In this way, the present invention is easy and quick to install, reusable, economical and practical, and highly interesting. It can be used to build various mechanism motion scenes, and can simultaneously realize plane display and multi-angle mechanism motion display of three-dimensional space structure, which is convenient for students to understand the three-dimensional space of the entire mechanism, expand students' spatial imagination, help classroom teaching, improve teaching quality, and is easy to use, thereby arousing students' interest in learning mechanical innovation design.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a combined mechanical rod system motion display teaching aid according to an embodiment of the present invention;

[0025] Figure 2 A side view of a combined mechanical rod mechanism motion display teaching aid according to an embodiment of the present invention;

[0026] Figure 3 A top view of a combined mechanical rod system motion display teaching aid according to an embodiment of the present invention;

[0027] Figure 4 A schematic diagram showing the structure of the adjustment assembly of the mechanism of an embodiment of the present invention;

[0028] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0029] Figure 6 A schematic diagram of a trajectory drawn by a chalk on a drawing board according to an embodiment of the present invention;

[0030] Figure 7 A structural diagram of a second embodiment of a chalk positioning assembly according to an embodiment of the present invention;

[0031] Figure 8 for Figure 7 Enlarged view of point B in the middle;

[0032] Fig. 9 for Figure 7 Cross-sectional view of the mating of the universal ball head tube and the sleeve.

[0033] In the figure:

[0034] 1. Mounting plate;

[0035] 2. Mechanism display adjustment component; 21. Positioning adjustment frame; 211. Mounting hole; 22. Support adjustment component; 221. Adjustment rod; 2211. Upper clamping part; 2212. Lower abutment part; 222. Adjustment member; 223. Positioning pin;

[0036] 3. Overall adjustment device; 31. Axial rotation adjustment mechanism; 311. Outer frame; 312. Rotation drive device; 32. Tilt adjustment mechanism; 321. Rocker arm; 322. Rotation positioning arm; 3221. Outer sleeve; 3222. Inner sleeve; 3223. Latch; 323. Rotation small arm; 33. Bracket; 331. Adjustment hole; 34. Positioning rod; 341. Connector; 35. Height adjustment frame; 351. Positioning hole; 352. Positioning pin;

[0037] 4. Mechanical rod mechanism;

[0038] 5. Through-tube; 51; Outward expansion abutment portion; 52; Bushing; 53; Universal ball head tube; 531; Ball head; 532; Outer tube; 54; Limit pin;

[0039] 6. Flower wheel;

[0040] 7. Chalk;

[0041] 8. Drawing board;

[0042] 9. Storage box. DETAILED DESCRIPTION

[0043] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0044] Referring to the accompanying drawings, a combined mechanical rod mechanism motion display teaching aid proposed in this embodiment includes:

[0045] A mounting plate 1 is provided, and a plurality of mechanical rod-type mechanisms 4 are mounted and displayed through a plurality of mechanism display adjustment components 2, the mechanism display adjustment components 2 are detachably connected to the mounting plate 1, and the mechanical rod-type mechanisms 4 are detachably connected to the mechanism display adjustment components 2;

[0046] The overall adjustment device 3 includes an axial rotation adjustment mechanism 31 and a tilt adjustment mechanism 32. The output shaft end of the axial rotation adjustment mechanism 31 is fixed to the lower end of the mounting plate 1 to drive the mounting plate 1 to rotate. The tilt adjustment mechanism 32 is fixed to the axial rotation adjustment mechanism 31 to drive the overall front and rear tilt angle of the steering adjustment mechanism 31, thereby adjusting the front and rear tilt angle of the mounting plate 1.

[0047] In this way, through the convenient installation of the mechanism display adjustment component 2 on the mounting plate 1, the motion mechanism can be quickly built, adjusted and designed on site, and the motion display of each different mechanical rod system mechanism 4 can be realized. The axonometric diagram of the mechanical rod system mechanism 4 to be taught can be realized through the axial rotation adjustment mechanism 31 and the tilt adjustment mechanism 32. In this way, the installation is convenient and fast, it can be reused, economical and practical, and it is highly interesting. It can be used to build various mechanism motion scenes, and can simultaneously realize plane display and multi-angle mechanism motion display of three-dimensional space structure, which is convenient for students to understand the three-dimensional space of the entire mechanism, expand students' spatial imagination, help classroom teaching, improve teaching quality, and is easy to use, thereby arousing students' interest in learning mechanical innovation design.

[0048] Furthermore, if Figure 1 and Figure 4 As shown, each mechanism display adjustment assembly 2 includes a positioning adjustment frame 21 and a support adjustment assembly 22. The lower end of the positioning adjustment frame 21 is detachably connected to the upper end of the mounting plate 1, and the support adjustment assembly 22 is detachably mounted on the positioning adjustment frame 21. Specifically, a nut with an internal thread can be fixed to the lower end of the positioning adjustment frame 21, and a plurality of studs are provided on the mounting plate 1. The nut at the lower end of the positioning adjustment frame 21 can be threadedly connected to the target stud. The rotation positioning of the positioning adjustment frame 21 on the mounting plate 1 is realized.

[0049] Furthermore, the positioning and adjustment frame 21 is configured as a hollow tube structure, and a plurality of mounting perforation groups are provided on the outer side of the hollow tube, each mounting perforation group includes a plurality of mounting holes 211, and the plurality of mounting holes 211 are distributed around the hollow tube, and the plurality of mounting perforation groups are arranged along the length direction of the hollow tube. The support and adjustment component 22 includes an adjusting rod 221 and an adjusting member 222, one end of the adjusting rod 221 is clamped in the mounting hole 211, and the adjusting member 222 is positioned and adjusted on the adjusting rod 221 by a positioning pin 223, and a mechanical rod system mechanism 4 is detachably mounted on the adjusting member 222.

[0050] Specifically, the end of the clamping end of the adjusting rod 221 is provided with an upper clamping part 2211 and a lower abutting part 2212, the mounting hole 211 can be set as a square hole, and the adjusting rod 221 is set as a square tube body. The upper clamping part 2211 of the adjusting rod 221 passes through the mounting hole 211 and abuts against the inner wall of the tube. At this time, the lower abutting part 2212 abuts against the outer wall of the positioning adjustment frame 21. Due to the gravity of the adjusting rod 221, the adjusting rod 221 and the positioning adjustment frame 21 are quickly installed and positioned, and the installation is convenient and fast, and the structure is simple and practical. Then, after the adjusting member 222 is moved to a suitable position on the adjusting rod 221 and connected to the connecting part of the mechanical rod system mechanism 4 to be displayed, the position is adjusted according to the movement to be displayed. It should be noted that, by tilting the adjusting mechanism 32 to achieve a 45° tilt of the mounting plate, the axonometric diagram of the three-dimensional picture in the book can be displayed, which is convenient for students to understand the three-dimensional space of the entire mechanism and expand students' spatial imagination.

[0051] The adjusting rod 221 is configured as a retractable adjusting rod structure. Figure 4 As shown, it includes an inner rod and an outer rod which are sleeved with each other. After the inner rod and the outer rod are telescopically adjusted, they are locked and fixed in position by a locking member (such as a locking bolt, etc.).

[0052] In this embodiment, Figure 1 and Figure 2 As shown, the axial rotation adjustment mechanism 31 includes an outer frame 311 and a rotation drive device 312. The rotation drive device 312 is arranged in the outer frame 311. The upper end of the output shaft of the rotation drive device 312 is coaxially fixedly connected to the lower end of the mounting plate 1 to drive the mounting plate 1 to rotate axially.

[0053] Furthermore, the rotation drive device 312 includes a drive motor and a reduction mechanism, and the drive motor and the reduction mechanism are connected via a belt transmission. The drive motor is started, and the speed of the mounting plate is controlled by the reduction mechanism to realize the display of various angles in the plane direction of the mechanical rod system 4 to be displayed.

[0054] like Figure 1 and Figure 2 As shown, the overall adjustment device 3 also includes a bracket 33 and a positioning rod 34. The bracket 33 is a U-shaped frame structure with an opening at the front. The axial rotation adjustment mechanism 31 extends into the bracket 33 from the front opening of the U-shaped frame structure. The two ends of the positioning rod 34 are connected to the upper end of the bracket for positioning and rotation through a connecting piece 341. The lower end of the middle part of the positioning rod 34 is fixedly connected to the upper part of the outer frame 311.

[0055] The tilt adjustment mechanism 32 includes a rocker arm 321, a rotating positioning arm 322 and a rotating arm 323. The rocker arm 321 is fixedly connected to one end of the positioning through rod 34, one end of the rotating positioning arm 322 is positioned and rotatably connected to the lower part of the bracket 33, and the other end is rotatably connected to one end of the rotating arm 323, and the other end of the rotating arm 323 is rotatably connected to the positioning through rod 34. The rotating positioning arm 322 is configured as a telescopic sleeve structure in which an outer sleeve 3221 and an inner sleeve 3222 are sleeved with each other. The upper end of the inner sleeve 3222 is rotatably connected to the rotating arm 323, and the lower end of the outer sleeve 3221 is rotatably connected to the rotating arm 323. The lower part of the bracket 33 is positioned and rotatably connected, and the inner sleeve 3222 and the outer sleeve 3221 are positioned by passing the pin 3223 through the through holes on the outer sleeve 3221 and the inner sleeve 3222 to adjust the effective length of the rotating positioning arm 322; the positioning through rod 34 is driven to rotate by rotating the rocker arm 321, and the positioning through rod 34 drives the outer frame 311 to rotate to adjust the front and rear tilt angle of the axial rotation adjustment mechanism 31, and then the effective length of the rotating positioning arm 322 at this time is fixed by the pin 3223 to fix the front and rear tilt angle of the axial rotation adjustment mechanism 31.

[0056] It should be noted that in other embodiments, the rear end of the rotating arm 323 can be rotated around the front end only by adjusting the effective length of the rotating positioning arm 322, thereby driving the axial rotation of the positioning through rod 34 and driving the outer frame 311 to rotate, thereby driving the entire axial rotation adjustment mechanism 31 to rotate around the positioning through rod 34 to achieve adjustment at different angles. The adjustment structure is simple, and the use of a pure mechanical mechanism has higher reliability and can be adjusted manually. At the same time, the rod system application (the various action processes of the tilt adjustment mechanism) and teaching explanations can be demonstrated to students in real time.

[0057] Furthermore, the overall adjustment device 3 also includes a height adjustment frame 35, which is sleeved in the lower part of the bracket 33, and the height adjustment frame 35 is provided with a plurality of positioning holes 351 arranged in the height direction, and the bracket 33 is provided with a plurality of adjustment holes 331 in the height direction, and the positioning pin 352 passes through the adjustment hole 331 and is inserted into the positioning hole 351 to achieve positioning between the bracket 33 and the height adjustment frame 35 to adjust the overall height. The space utilization rate of the entire device is improved. Preferably, the height adjustment frame 35 can also be provided with a detachable moving wheel to facilitate the movement of the device. The specific structure of the moving wheel can refer to the existing structure, such as a lockable universal wheel, etc., depending on the specific situation, and will not be repeated in this article.

[0058] It should be noted that in classroom learning, the study of bionic mechanical rod groups is of great significance. If the motion trajectory of the bionic mechanical rod group can be displayed in real time and an interesting demonstration can be achieved, it can arouse students' interest in learning mechanical innovation design. Figure 6-9As shown, the adjusting member 222 on which the bionic mechanical rod group is installed is also provided with a chalk positioning assembly, on which is fixed a tool capable of drawing the motion trajectory of the bionic mechanical rod group on a drawing board, and the drawing board 8 is fixed on the mechanism display adjusting assembly 2 close to the bionic mechanical rod group.

[0059] Embodiment 1: The chalk positioning assembly includes a tube 5 and a flower wheel 6, one end of the tube 5 is provided with a stopper, and the other end is provided with a plurality of circumferentially distributed elastic outwardly expanding abutting portions 51, and the outer periphery of the outwardly expanding abutting portion 51 is provided with a flower wheel 6; by passing the end of the chalk 7 inwardly through the outwardly expanding abutting portion 51 of the tube 5, the end of the chalk retained outside the outwardly expanding abutting portion 51 is opposite to the drawing board 8, and then the flower wheel 6 is manually clamped and pulled outward until it is clamped with the outwardly expanding abutting portion 51, thereby achieving the clamping of the chalk, and the lecturer controls the flower wheel 6 to drive the chalk 7 to draw the motion trajectory of the bionic mechanical rod group on the drawing board 8, wherein the loosening and clamping of the chalk is achieved by the axial forward and backward movement of the flower wheel 6 on the tube 5, the structure is simple, and the operation is convenient and quick.

[0060] Embodiment 2: A stopper is provided at one end of the through-tube 5, and a shaft sleeve 52 is connected at the other end. A universal ball head tube 53 is connected inside the shaft sleeve 52. The universal ball head tube 53 includes an integrated ball head 531 and an outer tube 532. The ball head 531 is located in a limiting groove in the shaft sleeve 52 and can rotate in the limiting groove in the shaft sleeve 52. The end of the outer tube 532 is provided with a plurality of circumferentially distributed elastic outward expansion abutment portions 51. The outer sleeve of the outward expansion abutment portion 51 is provided with a flower wheel 6, and through The flower wheel 6 is connected to the threaded structure on the outer tube 532 by axial front and rear threaded positioning connection to realize the loosening and clamping of the chalk 7, and one axial end of the through tube 5 is connected to the through hole on the ball head 531; it also includes a limit pin 54 that can limit the position of the universal ball head tube 53, and the limit pin 54 passes through the side of the sleeve 52 to press against the ball head 531. The limit pin 54 is threadedly connected to the side of the sleeve 52, and realizes the positioning and connection of the ball head 531 by moving back and forth on the sleeve 52.

[0061] It should be noted that two flower wheels 6 can be simultaneously provided to be threadedly connected to the outer tube 532, and the clamping position of the rod of the mechanical rod system mechanism 4 and the sleeve 52 can be achieved by the inward axial movement of one of the flower wheels 6, and the loosening and clamping of the chalk 7 can be achieved by the outward axial movement of the other flower wheel 6.

[0062] The single-degree-of-freedom rotational pair of the above-mentioned embodiment 1 and the three-degree-of-freedom spherical pair of the above-mentioned embodiment 2 are two types of rotational pair connection structures, which can realize the simplified connection of the two mechanism connection models, and then combine the low-pair simple guide rail structure of the moving pair, and realize the establishment of a complex mechanical rod system mechanism model through a series or parallel positioning connection method.

[0063] The combined mechanical rod mechanism motion display teaching aid in this embodiment is also provided with a storage box 9 for storing teaching aid components, and the storage box 9 can be placed on the bracket 33 below the axial rotation adjustment mechanism 31, so as to facilitate the storage and arrangement of the detachable assembly components of each mechanical rod mechanism 4.

[0064] In another embodiment of the present scheme, when the mechanical rod system mechanism to be demonstrated has only a coaxial rotation connection, a mounting structure of bolts and butterfly nuts can be used. By passing the screw end of the bolt through the through holes of the two connecting rods and then threadedly connected to the butterfly nut, a two-to-two coaxial rotation connection can be achieved. Then, by tightening the butterfly nut, the two screws can be clamped and positioned.

[0065] This embodiment also provides a method for using a combined mechanical rod system motion display teaching aid, based on the combined mechanical rod system motion display teaching aid described in any one of the above embodiments, comprising the following steps:

[0066] S1, adjusting the positioning position of the height adjustment frame 35, assembling the teaching aid components into the required mechanical rod system 4;

[0067] S2, installing the positioning adjustment frame 35 on the mounting plate 1, and adjusting the orientation of the mounting hole 211;

[0068] S3, positioning and installing the adjustment rod 221 in the mounting hole 211 on the positioning and adjusting frame 21, installing the connecting end of the mechanical rod system 4 on the adjustment rod 221 through the adjusting member 222, and teaching the connection method between the mechanical rod system 4;

[0069] S4. According to the movement law of the mechanical rod system mechanism to be explained, adjust the tightness of the adjusting member 222 to achieve relative fixation and relative movement between the rod systems, and teach and demonstrate the dynamic movement process of the rod system;

[0070] S5. After the explanation, disassemble and store the teaching aid components.

[0071] Specifically, each teaching aid component is disassembled and stored in the storage box 9 .

[0072] In summary, the display teaching aids in this embodiment can intuitively and dynamically demonstrate the movement process of each mechanical rod system mechanism 4, which is conducive to students' learning of the content; the operation is simple and does not require special training for operators, and students can also operate it.

[0073] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0074] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0075] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0076] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0077] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A combined mechanical rod mechanism motion display teaching aid, characterized in that: include: A mounting plate, for mounting and displaying a plurality of mechanical rod-type mechanisms through a plurality of mechanism display and adjustment components, wherein the mechanism display and adjustment components are detachably connected to the mounting plate, and the mechanical rod-type mechanisms are detachably connected to the mechanism display and adjustment components; The overall adjustment device includes an axial rotation adjustment mechanism and a tilt adjustment mechanism. The output shaft end of the axial rotation adjustment mechanism is fixed to the lower end of the mounting plate to drive the mounting plate to rotate. The tilt adjustment mechanism is fixed to the axial rotation adjustment mechanism to drive the overall front and rear tilt angle of the steering adjustment mechanism, thereby adjusting the front and rear tilt angle of the mounting plate.

2. The combined mechanical rod mechanism motion display teaching aid according to claim 1, characterized in that: Each of the mechanism display adjustment components comprises a positioning adjustment frame and a support adjustment component. The lower end of the positioning adjustment frame is detachably connected to the upper end of the mounting plate, and the support adjustment component is detachably mounted on the positioning adjustment frame.

3. The combined mechanical rod mechanism motion display teaching aid according to claim 2, characterized in that: The positioning and adjustment frame is configured as a hollow tube structure, and a plurality of mounting perforation groups are provided on the outer side of the hollow tube, each of the mounting perforation groups includes a plurality of mounting holes, and the plurality of mounting holes are distributed around the hollow tube, and the plurality of mounting perforation groups are arranged along the length direction of the hollow tube. The support adjustment component includes an adjusting rod and an adjusting member, one end of the adjusting rod is clamped in the mounting hole, and the adjusting member is positioned and adjusted on the adjusting rod by a positioning pin, and the mechanical rod system mechanism is detachably mounted on the adjusting member.

4. The combined mechanical rod mechanism motion display teaching aid according to claim 1, characterized in that: The axial rotation adjustment mechanism includes an outer frame and a rotation driving device, wherein the rotation driving device is arranged in the outer frame, and the upper end of the output shaft of the rotation driving device is coaxially fixedly connected with the lower end of the mounting plate to drive the mounting plate to rotate axially.

5. The combined mechanical rod mechanism motion display teaching aid according to claim 4, characterized in that: The rotation driving device comprises a driving motor and a reduction mechanism, and the driving motor and the reduction mechanism are connected via a belt transmission.

6. The combined mechanical rod mechanism motion display teaching aid according to claim 4, characterized in that: The overall adjustment device also includes a bracket and a positioning through rod. The bracket is a U-shaped frame structure with an opening at the front. The axial rotation adjustment mechanism extends into the bracket from the front opening of the U-shaped frame structure. The two ends of the positioning through rod are connected to the upper end of the bracket for positioning and rotation through a connecting piece. The lower end of the middle part of the positioning through rod is fixedly connected to the upper part of the outer frame.

7. The combined mechanical rod mechanism motion display teaching aid according to claim 6, characterized in that: The tilt adjustment mechanism includes a rocker arm, a rotating positioning arm and a rotating arm, the rocker arm is fixedly connected to one end of the positioning wear rod, one end of the rotating positioning arm is connected to the lower positioning and rotating connection of the bracket, and the other end is rotatably connected to one end of the rotating arm, and the other end of the rotating arm is rotatably connected to the positioning wear rod, the rotating positioning arm is set as a telescopic sleeve structure in which an outer sleeve and an inner sleeve are mutually sleeved, the upper end of the inner sleeve is rotatably connected to the rotating arm, and the lower end of the outer sleeve is connected to the lower positioning and rotating connection of the bracket, and the positioning of the inner sleeve and the outer sleeve is achieved by passing a pin through the through holes on the outer sleeve and the inner sleeve to adjust the effective length of the rotating positioning arm; the positioning wear rod is driven to rotate by rotating the rocker arm, and the positioning wear rod drives the outer frame to rotate to adjust the front and rear inclination angle of the axial rotation adjustment mechanism, and then the effective length of the rotating positioning arm at this time is fixed by the pin to fix the front and rear inclination angle of the axial rotation adjustment mechanism.

8. The combined mechanical rod mechanism motion display teaching aid according to claim 3, characterized in that: The adjusting member on which the bionic mechanical rod group is installed is also provided with a chalk positioning component, on which a movement trajectory of the bionic mechanical rod group can be drawn on a drawing board is fixed, and the drawing board is fixed on the mechanism display adjusting component close to the bionic mechanical rod group.

9. The combined mechanical rod mechanism motion display teaching aid according to claim 6, characterized in that: The overall adjustment device also includes a height adjustment frame, which is sleeved in the lower part of the bracket and is provided with a plurality of positioning holes arranged along the height direction. The bracket is provided with a plurality of adjustment holes along the height direction. Positioning pins are passed through the adjustment holes and inserted into the positioning holes to achieve positioning between the bracket and the height adjustment frame so as to adjust the overall height.

10. A method for using a combined mechanical rod system motion display teaching aid, based on the combined mechanical rod system motion display teaching aid according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Adjust the positioning position of the height adjustment frame and assemble the teaching aid components into the required mechanical rod system; S2. Install the positioning adjustment frame on the mounting plate and adjust the direction of the mounting holes; S3. Position and install the adjustment rod in the mounting hole on the positioning adjustment frame, install the connecting end of the mechanical rod system mechanism onto the adjustment rod through the adjusting piece, and teach the connection method between the mechanical rod system mechanisms; S4. According to the movement law of the mechanical rod system mechanism to be explained, adjust the tightness of the adjusting parts to achieve relative fixation and relative movement between the rod systems, and teach and demonstrate the dynamic movement process of the rod system; S5. After the explanation, disassemble and store the teaching aid components.

Images