Drawing device for ellipse teaching in secondary vocational education
By designing a cross groove, slider, and connecting rod structure, and combining components such as positioning holes, positioning rods, and push springs, the elliptical teaching drawing device for vocational schools can be quickly and accurately adjusted. This solves the problems of complex adjustment and poor accuracy of existing devices, and improves teaching efficiency and drawing accuracy.
Patent Information
- Application Number
- CN202423156890.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing ellipse drawing devices have difficulty in quickly adjusting the parameters of the major and minor axes, resulting in low teaching efficiency, poor drawing accuracy, and complicated operation.
The device employs a cross-groove, slider, and linkage structure, combined with components such as positioning holes, positioning rods, snap-fit sleeves, and push springs, to achieve rapid and precise adjustment of the long and short axis parameters. A locking mechanism ensures the stability and safety of the device.
It improves the accuracy and ease of operation of ellipse drawing, simplifies parameter adjustment steps, enhances the flexibility and safety of the device, and adapts to the drawing needs of different ellipse sizes.
Smart Images
Figure CN223574095U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to technical field of mathematics teaching of secondary vocational school more specifically, it relates to a kind of mathematics teaching drawing device of ellipse of secondary vocational school. BACKGROUND
[0002] In mathematics teaching of secondary vocational school, ellipse is important content of geometry, accurately drawing ellipse figure is particularly important for helping student to understand its construction principle and geometric property, however, the existing ellipse drawing device is difficult to quickly adjust the parameters of major axis and minor axis, so that teachers need to spend a lot of time in classroom to manually adjust, which affects teaching efficiency, at the same time, due to lack of efficient parameter adjustment function, students are prone to error when operating independently, drawing precision is difficult to guarantee, which weakens the intuitiveness and accuracy of teaching.
[0003] In addition, the adjustment steps in the prior art are usually complex, and need to rely on multiple tools or manual measurement, which not only increases the difficulty of teaching operation, but also reduces the coherence of classroom demonstration, which limits the flexibility of the device, making frequent adjustment under different ellipse parameter requirements cumbersome and time-consuming. UTILITY MODEL CONTENT
[0004] (I) technical problem solved
[0005] In view of the problems existing in the prior art, the utility model provides a mathematics teaching drawing device of ellipse of secondary vocational school to solve the technical problem that the existing ellipse drawing device is difficult to quickly adjust the parameters of major axis and minor axis mentioned in the background art.
[0006] (II) technical scheme
[0007] To achieve the above purpose, the utility model provides the following technical scheme: a mathematics teaching drawing device of ellipse of secondary vocational school, including base, drawing mechanism is arranged on the base, the drawing mechanism includes cross slot, first sliding block, connecting rod, second sliding block and jack, the cross slot is arranged on the base, the first sliding block slides in the longitudinal direction in the cross slot, the connecting rod is rotatably installed on the first sliding block, the second sliding block slides in the transverse direction in the cross slot, the jack is arranged at the bottom end of the connecting rod, the second sliding block is provided with adjusting mechanism, the adjusting mechanism includes positioning hole, positioning rod, clamping sleeve, slide rod, clamping block, pressing plate, clamping groove and pressing sleeve, the positioning hole is arranged on the connecting rod, the positioning rod is arranged on the second sliding block, the slide rod slides on the clamping sleeve, the clamping block is installed at the bottom end of the slide rod, the pressing plate is rotatably installed on the outer wall of the clamping sleeve, the clamping groove is arranged on the outer wall of the positioning rod, and the pressing sleeve slides on the outer wall of the clamping sleeve.
[0008] The utility model further sets up, positioning hole is provided with multiple groups distribution on connecting rod, and the spacing between multiple positioning holes is equal, and the equal-interval positioning hole design simplifies the adjustment process, makes long and short shaft parameter adjustment more efficient, guarantees the symmetry and drawing precision of ellipse.
[0009] The utility model further sets up, the positioning rod top is equipped with the adaptive block, the joint sleeve inner top is equipped with the adaptive groove, the adaptive block and adaptive groove all set up as polygon, polygon adaptive design makes the connection of positioning rod and joint sleeve more reliable, avoids drawing error caused by loosening in use process.
[0010] The utility model further sets up, the sliding rod top and joint sleeve outer wall between connection are equipped with first push spring, and the elastic reset function of first push spring simplifies the adjustment step, improves the fluency and efficiency of operation.
[0011] The utility model further sets up, the pressing plate bottom surface and joint sleeve outer wall between connection are equipped with second push spring, and second push spring makes the quick reset of pressing plate, guarantees that adjustment process is more flexible and convenient, reduces the complexity of artificial operation.
[0012] The utility model further sets up, the joint sleeve outer wall is equipped with the limit strip, the limit strip is connected with the pressing sleeve sliding, and the limit strip improves the accuracy and safety when pressing sleeve slides, avoids the deviation of position in sliding process.
[0013] The utility model further sets up, the pressing sleeve is equipped with locking mechanism, the locking mechanism includes lock groove, lock block, stretch spring and lock sleeve, the lock groove is provided with multiple groups distribution in joint sleeve outer wall, the lock block sliding installation is on the pressing sleeve, the stretch spring is installed on the lock block top and is connected with the pressing sleeve outer wall, the lock sleeve rotation installation is on the pressing sleeve outer wall, this design guarantees the stability of device, and operation is simple, can quickly switch locking and unlocking state, effectively prevents accidental loosening in adjustment or use process, further improves the practicability and safety of whole device.
[0014] The utility model further sets up, the lock sleeve inner wall is equipped with the let -alone slot, the let -alone slot is provided with multiple groups, and multiple let -alone slots design provides multiple -angle unlocking operation selection, improves the flexibility of lock sleeve operation, and simultaneously speeds up the unlocking process.
[0015] (Three) beneficial effects
[0016] Compared with the prior art, the utility model provides a kind of vocational ellipse teaching drawing device, with following beneficial effects:
[0017] 1、The drawing mechanism is matched with the first slider and the second slider through the longitudinal and transverse cross slots, so that the connecting rod and the jack form a stable transmission structure, the drawing pen moves along the track driven by the slider, a standard ellipse meeting the needs of mathematical teaching is accurately drawn, the design effectively avoids the common errors in manual drawing, improves the precision and operation convenience of ellipse drawing, and enables students to more intuitively understand the construction principle of the ellipse track.
[0018] 2、The adjusting mechanism is matched with the positioning hole, the positioning rod, the clamping sleeve and the sliding rod, so that the adjustment of the major and minor axis parameters can be quickly completed, the polygonal design of the adaptive block and the adaptive groove enhances the stability of the connection, the push spring provides an automatic reset function, the rotating structure of the pressing plate further ensures the firmness of the positioning rod, the adjusting mode not only improves the flexibility of the device, but also significantly simplifies the parameter adjustment steps in teaching, and meets the drawing needs of different ellipse sizes.
[0019] 3、The locking mechanism is matched with the locking slot and the locking block, and is designed with the stretching spring and the locking sleeve, so that the position of the pressing sleeve is stably fixed and quickly unlocked, the gap slot provides a flexible unlocking path, the elasticity of the stretching spring ensures that the locking block can quickly return to position, the design ensures the stability of the device while being easy to operate, can quickly switch between the locked and unlocked states, effectively prevents accidental loosening during adjustment or use, and further improves the practicality and safety of the whole device. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a whole structure schematic view of the ellipse teaching drawing device in the utility model.
[0021] Figure 2 It is a structure schematic view of the connecting rod in the utility model.
[0022] Figure 3 It is a split structure schematic view of the second slider and the connecting rod in the utility model.
[0023] Figure 4 It is a sectional structure schematic view of the adjusting mechanism in the utility model.
[0024] Figure 5 It is a sectional structure schematic view of the locking mechanism in the utility model.
[0025] In the figure: 1, base; 2, cross slot; 3, first sliding block; 4, connecting rod; 5, second sliding block; 6, insertion hole; 7, positioning hole; 8, positioning rod; 9, clamping sleeve; 10, sliding rod; 11, clamping block; 12, pressing plate; 13, clamping groove; 14, pressing sleeve; 15, adapter block; 16, adapter groove; 17, first push spring; 18, second push spring; 19, limiting strip; 20, locking groove; 21, locking block; 22, tension spring; 23, locking sleeve; 24, clearance groove. DETAILED DESCRIPTION
[0026] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.
[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.
[0028] In the present application, unless otherwise specified, the directions used such as "up, down" are generally with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for the convenience of understanding and description, "left, right" are generally with respect to the left and right shown in the drawings; "inner, outer" refer to the inner and outer with respect to the contour of each component itself, but the above directional words are not used to limit the present application.
[0029] Please refer to Figures 1-5 A kind of middle vocational ellipse teaching drawing device, including base 1, drawing mechanism is arranged on base 1, drawing mechanism includes cross slot 2, first sliding block 3, connecting rod 4, second sliding block 5 and insertion hole 6, cross slot 2 is arranged on base 1, first sliding block 3 slides in cross slot 2 longitudinal direction, connecting rod 4 is rotatably installed on first sliding block 3, second sliding block 5 slides in cross slot 2 transverse direction, insertion hole 6 is arranged at the bottom end of connecting rod 4, adjusting mechanism is arranged on second sliding block 5, adjusting mechanism includes positioning hole 7, positioning rod 8, clamping sleeve 9, sliding rod 10, clamping block 11, pressing plate 12, clamping groove 13 and pressing sleeve 14, positioning hole 7 is arranged on connecting rod 4, positioning rod 8 is arranged on second sliding block 5, sliding rod 10 slides on clamping sleeve 9, clamping block 11 is installed at the bottom end of sliding rod 10, pressing plate 12 is rotatably installed on the outer wall of clamping sleeve 9, clamping groove 13 is arranged on the outer wall of positioning rod 8, and pressing sleeve 14 slides on the outer wall of clamping sleeve 9.
[0030] Positioning hole 7 is provided with multiple groups distributed on connecting rod 4, and the spacing between multiple groups of positioning holes 7 is equal, by equal interval design, multiple insertion positions are provided, for accurately adjusting the position of positioning rod 8, so as to realize the rapid setting of ellipse major and minor axis parameters.
[0031] The top end of the positioning rod 8 is provided with an adapter block 15, and the inner top end of the clamping sleeve 9 is provided with an adapter groove 16, both of which are polygonal. The adapter block 15 of the positioning rod 8 and the adapter groove 16 in the clamping sleeve 9 are designed in a polygonal shape to ensure that they cannot rotate or loosen after being inserted.
[0032] The top end of the sliding rod 10 and the outer wall of the clamping sleeve 9 are connected by a first push spring 17, which provides the sliding rod 10 with continuous elastic return force. After the pressing plate 12 is removed from the abutment of the sliding rod 10, the sliding rod 10 is quickly reset by the push spring 17, so that the clamping block 11 is separated from the clamping groove 13.
[0033] The bottom surface of the pressing plate 12 and the outer wall of the clamping sleeve 9 are connected by a second push spring 18, which provides elastic support to make the pressing plate 12 automatically pop out when the pressing sleeve 14 is removed from the pressure, thereby removing the abutment of the sliding rod 10.
[0034] The outer wall of the clamping sleeve 9 is provided with a limiting strip 19, which is in sliding connection with the pressing sleeve 14. The limiting strip 19 limits the sliding range of the pressing sleeve 14 through the sliding connection with the pressing sleeve 14, preventing the pressing sleeve 14 from sliding out of position or losing stability, and ensuring that it remains stable during adjustment and fixation.
[0035] In this embodiment, the longitudinal and transverse grooves of the cross groove 2 provide sliding paths for the first sliding block 3 and the second sliding block 5. The first sliding block 3 slides in the longitudinal groove, and one end of the connecting rod 4 is connected with the first sliding block 3 and can rotate, and the other end is fixed with the drawing pen through the insertion hole 6. The second sliding block 5 slides in the transverse groove and forms an elliptical trajectory through interaction. In operation, the synchronous sliding of the first sliding block 3 and the second sliding block 5 makes the drawing pen move along the elliptical trajectory, completing the precise drawing of the ellipse. When it is necessary to adjust the parameters of the major and minor axes of the ellipse, the locking mechanism is unlocked to remove the restriction of the pressing sleeve 14, and the pressing sleeve 14 is slid upward to remove the abutment of the pressing plate 12. The pressing plate 12 is pushed outward by the second push spring 18 to remove the abutment of the sliding rod 10, and the sliding rod 10 is pushed outward by the first push spring 17, thereby driving the clamping block 11 to move outward and separate from the clamping groove 13, thereby removing the fixation of the positioning rod 8. Then the positioning rod 8 is inserted into other specified positioning holes 7, and the positioning rod 8 is inserted into the clamping sleeve 9. Precise positioning and insertion are achieved through the adapter block 15 and the adapter groove 16. Then the pressing sleeve 14 is slid downward to abut and apply a certain downward pressure to the outer wall of the pressing plate 12 inside, while the second push spring 18 is squeezed. One end of the pressing plate 12 rotates along the clamping sleeve 9 to abut and push the top end of the sliding rod 10, so that the sliding rod 10 pushes the clamping block 11 to engage in the clamping groove 13, and the positioning rod 8 is clamped and fixed. Finally, the pressing sleeve 14 is locked by the locking mechanism to achieve precise adjustment of the parameters of the major and minor axes of the ellipse.
[0036] Please refer to Figures 4-5As an embodiment of the locking mechanism: the locking mechanism is arranged on the pressing sleeve 14, and the locking mechanism comprises a locking groove 20, a locking block 21, a tension spring 22 and a locking sleeve 23. The locking groove 20 is arranged on the outer wall of the clamping sleeve 9 in multiple groups. The locking block 21 is slidingly installed on the pressing sleeve 14. The tension spring 22 is installed at the top end of the locking block 21 and is connected with the outer wall of the pressing sleeve 14. The locking sleeve 23 is rotatably installed on the outer wall of the pressing sleeve 14.
[0037] The inner wall of the locking sleeve 23 is provided with a plurality of groups of clearance grooves 24. When the locking block 21 is embedded in the locking groove 20, the locking block 21 is aligned to the position of the clearance groove 24 by rotating the locking sleeve 23. The elastic force of the tension spring 22 causes the locking block 21 to be separated from the locking groove 20, and the unlocking is completed.
[0038] More specifically, when locking is needed, the locking block 21 is embedded in the locking groove 20 by abutting the inner wall of the locking sleeve 23 on the pressing sleeve 14, thereby limiting the sliding of the pressing sleeve 14. When unlocking is needed, the locking sleeve 23 is rotated, and the locking block 21 is moved to the outside of the locking block 21 through the clearance groove 24 in the inner wall, and the locking block 21 is pulled out of the locking groove 20 by the outward spring of the tension spring 22, thereby realizing the unlocking operation.
[0039] In summary, when the overall device is in use or operation: the longitudinal and transverse grooves of the cross groove 2 provide the sliding path of the first sliding block 3 and the second sliding block 5. The first sliding block 3 slides in the longitudinal groove, one end of the connecting rod 4 is connected with the first sliding block 3 and can rotate, and the other end is fixed with the drawing pen through the insertion hole 6. The second sliding block 5 slides in the transverse groove and forms an elliptical trajectory by interaction. In operation, the synchronous sliding of the first sliding block 3 and the second sliding block 5 makes the drawing pen move along the elliptical trajectory, and the precise drawing of the ellipse is completed. When it is needed to adjust the parameters of the major and minor axes of the ellipse, the locking mechanism is released from the restriction of the pressing sleeve 14, the pressing sleeve 14 is slid upward to release the abutment of the pressing plate 12, the pressing plate 12 is pushed outward by the second push spring 18 to release the abutment of the sliding rod 10, the sliding rod 10 is pushed outward by the first push spring 17, thereby driving the clamping block 11 to move outward and be separated from the clamping groove 13, thereby releasing the fixation of the positioning rod 8. Then the positioning rod 8 is inserted into other specified positioning holes 7, and the positioning rod 8 is inserted into the clamping sleeve 9. The precise positioning insertion is formed through the adaptive block 15 and the adaptive groove 16. Then the pressing sleeve 14 is slid downward to abut the outer wall of the pressing plate 12 on the inner side and apply a certain downward pressure while extruding the second push spring 18. One end of the pressing plate 12 rotates along the clamping sleeve 9 to make the inner wall abut the top end of the sliding rod 10 to push, so that the sliding rod 10 pushes the clamping block 11 to be clamped in the clamping groove 13, and the positioning rod 8 is clamped and fixed. Finally, the locking mechanism is locked to the pressing sleeve 14 to realize the precise adjustment of the parameters of the major and minor axes of the ellipse.
[0040] When locking is needed, the lock block 21 is abutted on the pressing sleeve 14 by the inner wall of the lock sleeve 23 and is embedded in the lock slot 20, thereby limiting the sliding of the pressing sleeve 14; when unlocking is needed, the lock sleeve 23 is rotated and moved to the outside of the lock block 21 through the let-out slot 24 of the inner wall, and the lock block 21 is pulled out of the lock slot 20 by the outward springing of the tension spring 22, thereby realizing the unlocking operation.
[0041] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection or other known connection modes, which will not be described one by one here. In the above, whenever fixed connection is mentioned, welding is preferred. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A teaching drawing device for middle school ellipse, comprising a base (1), characterized in that: The base (1) is provided with a drawing mechanism, the drawing mechanism comprises a cross slot (2), a first sliding block (3), a connecting rod (4), a second sliding block (5) and a jack (6), the cross slot (2) is arranged on the base (1), the first sliding block (3) is longitudinally slid in the cross slot (2), the connecting rod (4) is rotatably installed on the first sliding block (3), the second sliding block (5) is transversely slid in the cross slot (2), the jack (6) is arranged at the bottom end of the connecting rod (4), the second sliding block (5) is provided with an adjusting mechanism, the adjusting mechanism comprises a positioning hole (7), a positioning rod (8), a clamping sleeve (9), a sliding rod (10), a clamping block (11), a pressing plate (12), a clamping groove (13) and a pressing sleeve (14), the positioning hole (7) is arranged on the connecting rod (4), the positioning rod (8) is arranged on the second sliding block (5), the sliding rod (10) is slid on the clamping sleeve (9), the clamping block (11) is installed at the bottom end of the sliding rod (10), the pressing plate (12) is rotatably installed on the outer wall of the clamping sleeve (9), the clamping groove (13) is arranged on the outer wall of the positioning rod (8), and the pressing sleeve (14) is slid on the outer wall of the clamping sleeve (9).
2. The device according to claim 1, characterized in that: The positioning hole (7) is provided with a plurality of groups distributed on the connecting rod (4), and the spacing between the plurality of groups of positioning holes (7) is equal.
3. The device according to claim 2, characterized in that: The top end of the positioning rod (8) is provided with an adapter block (15), the inner top end of the clamping sleeve (9) is provided with an adapter groove (16), and the adapter block (15) and the adapter groove (16) are both polygonal.
4. The device according to claim 3, characterized in that: The first push spring (17) is connected between the top end of the sliding rod (10) and the outer wall of the clamping sleeve (9).
5. The device according to claim 4, characterized in that: The second push spring (18) is connected between the bottom surface of the pressing plate (12) and the outer wall of the clamping sleeve (9).
6. The device according to claim 5, characterized in that: The outer wall of the clamping sleeve (9) is provided with a limiting strip (19), and the limiting strip (19) is slidably connected with the pressing sleeve (14).
7. The device according to claim 6, characterized in that: The pressing sleeve (14) is provided with a locking mechanism, the locking mechanism comprises a locking groove (20), a locking block (21), a tension spring (22) and a locking sleeve (23), the locking groove (20) is provided with a plurality of groups distributed on the outer wall of the clamping sleeve (9), the locking block (21) is slidably installed on the pressing sleeve (14), the tension spring (22) is installed at the top end of the locking block (21) and connected with the outer wall of the pressing sleeve (14), and the locking sleeve (23) is rotatably installed on the outer wall of the pressing sleeve (14).
8. The device according to claim 7, characterized in that: The inner wall of the locking sleeve (23) is provided with a clearance groove (24), and the clearance groove (24) is provided with a plurality of groups.