Engineering drawing education model and teaching method

Abstract

The invention relates to the technical field of engineering drawing education models, in particular to an engineering drawing education model and a teaching method. The engineering drawing education model comprises a containing disc, a rotating shaft is arranged in the middle of the containing disc, a rotating shaft is arranged in the middle of the bottom of the rotating shaft of the containing disc, and the top of the rotating shaft is connected with a rotating disc; first telescopic grooves are formed in the periphery of the top of the rotating disc, first springs are arranged on the inner sides of the first telescopic grooves, and first telescopic blocks are connected to the outer sides of the first springs. A second contraction groove is formed in the bottom of the second poke rod, and a third spring is arranged on the periphery of the second contraction groove; the engineering drawing education model and teaching method provided by the invention have the beneficial effects that when the direction of a first pulling block needs to be adjusted, a second pulling block is pulled to drive a second limiting slot through a second connecting rod to extrude a third spring, and the third spring is contracted into a second contraction groove from a second telescopic groove, so that the position of the first pulling block is adjusted; and meanwhile, the bottom of the second pulling block extends out of the top end of the second poke rod.

Description

Technical Field

[0001] The invention relates to the technical field of engineering drawing education models, in particular to an engineering drawing education model and a teaching method. Background Art

[0002] Engineering drawing education is a comprehensive teaching framework that aims to cultivate students' theoretical knowledge and practical skills in the field of engineering drawing through engineering models and system curriculum design and teaching methods.

[0003] With existing technology, students can gain a more intuitive understanding of engineering through engineering models, enabling them to better adapt to future engineering challenges and become engineers with advanced skills and innovative capabilities.

[0004] However, in actual courses, teachers mostly place the engineering model directly on the surface of the desk. When explaining, they need to manually adjust the angle of the engineering model. However, manual adjustment of the angle will result in a large deviation, which makes it impossible for students to fully understand the engineering model. Summary of the invention

[0005] The purpose of the present invention is to provide an engineering drawing education model and teaching method to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a holding plate, a rotating shaft is provided in the middle of the holding plate, a rotating shaft is arranged in the middle of the bottom of the rotating shaft of the holding plate, and the top of the rotating shaft is connected to the rotating plate; a first telescopic groove is provided around the top of the rotating plate, a first spring is provided on the inner side of the first telescopic groove, and the outer side of the first spring is connected to the first telescopic block; a second toggle rod, a second contraction groove is provided at the bottom of the second toggle rod, a third spring is provided around the second contraction groove, the bottom of the third spring is connected to the second limiting slot, the top of the second limiting slot is connected to the second connecting rod, and the top of the second connecting rod is connected to the second pulling block; and a second telescopic groove, a plurality of second telescopic grooves are provided, and the second telescopic grooves are provided at the bottom of the rotating plate.

[0007] Preferably, a plurality of groups of rollers are arranged around the outer ring of the rotating disk, the rollers are closely attached to the inner wall of the containing disk, the rotating disk can rotate in the rotating shaft through the rotating shaft, and the rollers can make the rotation of the rotating disk more labor-saving.

[0008] Preferably, a clamping rod is provided at the inner top of the first telescopic block, and the clamping rod can clamp the first pulling block placed in the middle of the top of the rotating disk through the tension of the first spring. A rubber pad is provided on the inner side of the clamping rod, and the rubber pad can protect the first pulling block to prevent the first pulling block from being clamped.

[0009] Preferably, an annular groove is provided inside the rotating disk, a rotating ring is provided in the annular groove, the rotating ring is provided at the top of the first telescopic block, a plurality of groups of limit plates are provided at the bottom of the rotating ring, the limit plates are received in the receiving grooves provided at the sides of the first telescopic groove, a plurality of groups of limit grooves are provided on the first telescopic block, and the rotating ring can drive the limit plates to be inserted into the limit grooves.

[0010] Preferably, a first toggle rod is provided on the top of the rotating ring, and the first toggle rod extends from a toggle groove opened at the top of the ring groove. Toggling the first toggle rod can drive the rotating ring to rotate in the ring groove, and make the limit plate be inserted from the storage groove on the side of the first telescopic groove into the corresponding limit groove on the clamping rod to fix the clamping of the clamping rod.

[0011] Preferably, the rotating disk is provided with a first limiting slot on one side of the first toggle rod, a first contraction slot is provided at the bottom of the first toggle rod, a second spring is arranged in the first contraction slot, the bottom of the second spring is connected to the first limiting column, and the first limiting column can be inserted into the first limiting slot through the tension of the second spring to fix the rotation of the rotating ring.

[0012] Preferably, the top of the first limiting slot is connected to the first connecting rod, and the top of the first connecting rod is connected to the first pulling block. Pulling the first pulling block can enable the first pulling block to drive the first limiting column to squeeze the second spring through the first connecting rod, so that the first limiting column shrinks into the first shrinkage groove, thereby canceling the fixation of the rotating ring.

[0013] Preferably, a second toggle rod is provided on the top outer ring of the holding plate, a second contraction groove is provided at the bottom of the second toggle rod, the second contraction groove passes through the rotating plate, and the holding plate has multiple groups of second telescopic grooves provided at the bottom of the rotating plate, the second telescopic grooves are parallel to the second contraction grooves, and the third spring can bounce the second limiting slot into the second telescopic groove through tension to fix the rotation of the rotating plate.

[0014] Preferably, the top of the second connecting rod is connected to the second pulling block, and pulling the second pulling block can make the second limiting slot connected to the bottom of the second connecting rod disengage from the second telescopic slot, and fourth springs are provided on both sides of the bottom of the second toggle rod, and the second telescopic block is provided in the fourth spring, and the outer side of the toggle plate is connected to the toggle plate, and when the second pulling block is pulled out from the second toggle rod, the second telescopic block can pop out the toggle plate through tension, thereby fixing the second pulling block on the top of the second pulling block.

[0015] A teaching method for an engineering drawing education model comprises the following steps: Step 1: clamping, by toggling the clamping rod toward the outside of the rotating disk, then placing the first pulling block in the middle of the rotating disk, then releasing the toggling clamping rod, the first spring begins to drive the first telescopic block to contract through the contraction force, so that the clamping rod at the top of the first telescopic block begins to clamp the first pulling block, and then by toggling the first toggle rod, the first toggle rod begins to drive the rotating ring to slide in the ring groove, and drives the limiting plate to extend from the storage groove on the side of the first telescopic groove, and is inserted into the corresponding limiting groove opened on the first telescopic block according to the size of the first pulling block to fix the clamping of the clamping rod, and at the same time, the first limiting column at the bottom of the first pulling block reaches above the first limiting slot opened by the rotating disk at the bottom of the rotating ring, at this time, the second spring pops the first limiting column out of the first contraction groove, and inserts it into the first limiting slot to fix the rotation of the rotating ring; Step 2: Adjustment, by pulling the second pulling block, the second pulling block drives the second limiting slot to squeeze the third spring through the second connecting rod, and shrinks from the second telescopic slot to the second shrinkage slot, and at the same time, the bottom of the second pulling block extends from the top of the second toggle rod. At this time, the second telescopic block pops out the toggle plate from the fourth spring through tension, so that the toggle plate is clamped on both sides of the top of the second toggle rod, and the contraction of the second limiting slot is fixed. After that, by toggling the second toggle rod, the second toggle rod can drive the rotating disk to rotate in the rotating shaft opened at the top of the containing disk.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes an engineering drawing education model and teaching method. When the orientation of the first pulling block needs to be adjusted, the second pulling block is pulled so that the second pulling block drives the second limiting slot to squeeze the third spring through the second connecting rod and shrinks from the second telescopic slot to the second shrinking slot. At the same time, the bottom of the second pulling block extends from the top of the second toggle rod. At this time, the second telescopic block pops out the toggle plate from the fourth spring through tension, so that the toggle plate is clamped on both sides of the top of the second toggle rod, and the contraction of the second limiting slot is fixed. Then, the second toggle rod can be toggled to adjust the orientation of the first pulling block. The rod drives the rotating disk to rotate in the rotating shaft opened at the top of the containing disk. The outer ring of the rotating disk is provided with multiple sets of rollers. The rollers can make the rotation of the rotating disk more labor-saving. When the first pulling block reaches a suitable angle, the second toggle rod extending from the top is toggled, and the bottom is connected to the rear end of the toggle plate. By toggling inward, the toggle plate can squeeze the second telescopic block and shrink into the fourth spring, thereby canceling the limit of the second limiting slot connected to the second connecting rod at the bottom of the second pulling block. The second limiting slot begins to rebound into the second telescopic slot through the tension of the third spring to fix the rotation of the rotating disk again. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2It is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 It is another cross-sectional structural schematic diagram of the present invention; Figure 4 is a schematic cross-sectional structure diagram of a first toggle lever of the present invention; Figure 5 is a schematic diagram of the cross-sectional structure of the second toggle lever of the present invention; Figure 6 for Figure 5 A schematic diagram of the structure enlargement in the middle; Figure 7 It is a schematic diagram of the three-dimensional structure of the rotating ring of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the holding tray of the present invention.

[0018] In the figure: a holding plate 1, a rotating shaft 2, a rotating shaft 3, a rotating plate 4, a roller 5, a first telescopic slot 6, a first spring 7, a first telescopic block 8, a clamping rod 9, a rubber pad 10, a limiting slot 11, a ring slot 12, a rotating ring 13, a limiting plate 14, a first toggle rod 15, a first pulling block 16, a second toggle rod 17, a second pulling block 18, a first contraction slot 19, a second spring 20, a first limiting column 21, a first connecting rod 22, a first limiting slot 23, a second contraction slot 24, a third spring 25, a second connecting rod 26, a second limiting slot 27, a second telescopic slot 28, a fourth spring 29, a second telescopic block 30, and a toggle plate 31. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit 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.

[0020] See also Figures 1 to 8The present invention provides a technical solution: a holding tray 1, a rotating shaft 3 is provided in the middle of the holding tray 1, a rotating shaft 2 is provided in the middle of the bottom of the rotating shaft 3 of the holding tray 1, and the top of the rotating shaft 2 is connected to the rotating tray 4; a first telescopic slot 6 is provided around the top of the rotating tray 4, a first spring 7 is provided on the inner side of the first telescopic slot 6, and the outer side of the first spring 7 is connected to the first telescopic block 8; a second toggle rod 17, a second contraction slot 24 is provided at the bottom of the second toggle rod 17, a third spring 25 is provided around the second contraction slot 24, the bottom of the third spring 25 is connected to the second limiting slot 27, the top of the second limiting slot 27 is connected to the second connecting rod 26, and the top of the second connecting rod 26 is connected to the second pulling block 18; and a second telescopic slot The first telescopic block 8 is provided with a clamping rod 9 on the inner top, and the clamping rod 9 can clamp the first pulling block 16 placed in the middle of the top of the rotating disk 4 through the tension of the first spring 7. The inner side of the clamping rod 9 is provided with a rubber pad 10, and the rubber pad 10 can protect the first pulling block 16 and prevent the first pulling block 16 from being pinched; the inner side of the rotating disk 4 is provided with an annular groove 12, and the annular groove 12 is provided with a rotating ring 1 3. The rotating ring 13 is arranged at the top of the first telescopic block 8, and a plurality of limit plates 14 are arranged at the bottom of the rotating ring 13. The limit plates 14 are received in the receiving grooves provided on the side of the first telescopic slot 6. The first telescopic block 8 is provided with a plurality of limit slots 11. The rotating ring 13 can drive the limit plates 14 to be inserted into the limit slots 11; a first toggle rod 15 is arranged at the top of the rotating ring 13, and the first toggle rod 15 extends from the toggle groove provided at the top of the annular slot 12. Toggling the first toggle rod 15 can enable the first toggle rod 15 to drive the rotating ring 13 to rotate in the annular slot 12, and enable the limit plates 14 to be inserted from the receiving grooves on the side of the first telescopic slot 6 into the corresponding limit slots 11 on the clamping rod 9, so as to fix the clamping of the clamping rod 9; the rotating disk 4 is arranged at the first toggle rod 1 A first limiting slot 23 is provided on one side of the first toggle rod 15, a first contraction slot 19 is provided at the bottom of the first toggle rod 15, a second spring 20 is provided in the first contraction slot 19, the bottom of the second spring 20 is connected to a first limiting column 21, the first limiting column 21 can be inserted into the first limiting slot 23 through the tension of the second spring 20, and the rotation of the rotating ring 13 is fixed; the top of the first limiting slot 23 is connected to a first connecting rod 22, the top of the first connecting rod 22 is connected to a first pulling block 16, and pulling the first pulling block 16 can make the first pulling block 16 drive the first limiting column 21 to squeeze the second spring 20 through the first connecting rod 22, so that the first limiting column 21 is contracted to the first contraction slot 19, and the fixing of the rotating ring 13 is cancelled;The top outer ring of the holding tray 1 is provided with a second toggle rod 17, and the bottom of the second toggle rod 17 is provided with a second contraction groove 24, and the second contraction groove 24 runs through the rotating disk 4. The holding tray 1 is provided with a plurality of second telescopic grooves 28 at the bottom of the rotating disk 4, and the second telescopic grooves 28 are parallel to the second contraction grooves 24. The third spring 25 can bounce the second limiting slot 27 into the second telescopic groove 28 through tension to fix the rotation of the rotating disk 4; the top of the second connecting rod 26 is connected to the second pulling block 18, and the second connecting rod 26 is pulled to move the second limiting slot 27 to the second limiting slot 28. The second pulling block 18 can make the second limiting slot 27 connected to the bottom of the second connecting rod 26 disengage from the second telescopic slot 28. The second toggle rod 17 is provided with fourth springs 29 on both sides of the bottom, and the second telescopic block 30 is provided in the fourth spring 29. The outer side of the toggle plate 31 is connected to the toggle plate 31. When the second pulling block 18 is pulled out from the second toggle rod 17, the second telescopic block 30 can pop out the toggle plate 31 through tension, and fix the second pulling block 18 at the top of the second pulling block 18. ;

[0021] When in actual use, first push the clamping rod 9 toward the outside of the rotating disk 4, then place the first pulling block 16 in the middle of the rotating disk 4, then release the clamping rod 9, the first spring 7 starts to drive the first telescopic block 8 to contract through the contraction force, so that the clamping rod 9 at the top of the first telescopic block 8 starts to clamp the first pulling block 16, and then push the first toggle rod 15, the first toggle rod 15 starts to drive the rotating ring 13 to slide in the ring groove 12, and drives the limiting plate 14 to extend from the storage groove on the side of the first telescopic groove 6, and according to the size of the first pulling block 16, it is inserted into the corresponding limiting groove 11 opened on the first telescopic block 8 to fix the clamping of the clamping rod 9, and at the same time, the first limiting column 21 at the bottom of the first pulling block 16 reaches the top of the first limiting slot 23 opened at the bottom of the rotating ring 13 of the rotating disk 4, at this time, the second spring 20 pops the first limiting column 21 out of the first contraction groove 19, and inserts it into the first limiting slot 23 to fix the rotation of the rotating ring 13; When the orientation of the first pulling block 16 needs to be adjusted, the second pulling block 18 is pulled so that the second pulling block 18 drives the second limiting slot 27 to squeeze the third spring 25 through the second connecting rod 26, and shrinks from the second telescopic slot 28 to the second shrinking slot 24. At the same time, the bottom of the second pulling block 18 extends out from the top of the second toggle rod 17. At this time, the second telescopic block 30 pops out the toggle plate 31 from the fourth spring 29 through tension, so that the toggle plate 31 is clamped on both sides of the top of the second toggle rod 17, and the contraction of the second limiting slot 27 is fixed. Then, by toggling the second toggle rod 17, the second toggle rod 17 can drive the rotating disk 4 to the receiving disk 1 The rotating shaft 3 opened at the top rotates, and the outer ring of the rotating disk 4 is provided with multiple groups of rollers 5, which can make the rotation of the rotating disk 4 more labor-saving. When the first pulling block 16 reaches a suitable angle, by toggling the 32 extending from the top of the second toggle rod 17, the bottom of 32 is connected to the rear end of the toggle plate 31. By toggling 32 inward, the toggle plate 31 can squeeze the second telescopic block 30 and shrink into the fourth spring 29, canceling the limit of the second limiting slot 27 connected to the second connecting rod 26 at the bottom of the second pulling block 18, and the second limiting slot 27 begins to bounce into the second telescopic slot 28 through the tension of the third spring 25 to fix the rotation of the rotating disk 4 again.

[0022] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. An engineering drawing education model, characterized by: include: A holding tray (1), wherein a rotating shaft (3) is provided in the middle of the holding tray (1), a rotating shaft (2) is provided in the middle of the bottom of the rotating shaft (3) of the holding tray (1), and the top of the rotating shaft (2) is connected to the rotating tray (4); first telescopic grooves (6) are provided around the top of the rotating tray (4), a first spring (7) is provided inside the first telescopic groove (6), and the outside of the first spring (7) is connected to a first telescopic block (8); a second toggle rod (17), a second contraction groove (24) being provided at the bottom of the second toggle rod (17), a third spring (25) being provided around the second contraction groove (24), the bottom of the third spring (25) being connected to the second limiting slot (27), the top of the second limiting slot (27) being connected to the second connecting rod (26), the top of the second connecting rod (26) being connected to the second pulling block (18); and The second telescopic grooves (28) are provided in a plurality of groups, and the second telescopic grooves (28) are provided at the bottom of the rotating disk (4).

2. The engineering drawing education model according to claim 1, characterized in that: A plurality of groups of rollers (5) are arranged around the outer ring of the rotating disk (4), and the rollers (5) are closely attached to the inner wall of the containing disk (1). The rotating disk (4) can rotate in the rotating shaft (3) via the rotating shaft (2), and the rollers (5) can make the rotating disk (4) rotate more labor-saving.

3. The engineering drawing education model according to claim 2, characterized in that: A clamping rod (9) is provided at the inner top of the first telescopic block (8), and the clamping rod (9) can clamp the first pulling block (16) placed at the middle of the top of the rotating disk (4) through the tension of the first spring (7). A rubber pad (10) is provided on the inner side of the clamping rod (9), and the rubber pad (10) can protect the first pulling block (16) to prevent the first pulling block (16) from being clamped.

4. The engineering drawing education model according to claim 3, characterized in that: The rotating disk (4) is provided with an annular groove (12) inside, a rotating ring (13) is provided in the annular groove (12), the rotating ring (13) is provided at the top of the first telescopic block (8), a plurality of groups of limiting plates (14) are provided at the bottom of the rotating ring (13), the limiting plates (14) are received in receiving grooves provided at the sides of the first telescopic groove (6), a plurality of groups of limiting grooves (11) are provided on the first telescopic block (8), and the rotating ring (13) can drive the limiting plates (14) to be inserted into the limiting grooves (11).

5. The engineering drawing education model according to claim 4, characterized in that: A first toggle rod (15) is provided at the top of the rotating ring (13). The first toggle rod (15) extends from a toggle groove provided at the top of the annular groove (12). When the first toggle rod (15) is toggled, the first toggle rod (15) can drive the rotating ring (13) to rotate in the annular groove (12), and the limiting plate (14) can be inserted from the receiving groove on the side of the first telescopic groove (6) into the corresponding limiting groove (11) on the clamping rod (9), thereby clamping and fixing the clamping rod (9).

6. The engineering drawing education model according to claim 5, characterized in that: The rotating disk (4) is provided with a first limiting slot (23) on one side of the first toggle rod (15); a first contraction slot (19) is provided at the bottom of the first toggle rod (15); a second spring (20) is arranged in the first contraction slot (19); the bottom of the second spring (20) is connected to a first limiting column (21); the first limiting column (21) can be inserted into the first limiting slot (23) by the tension of the second spring (20), thereby fixing the rotation of the rotating ring (13).

7. The engineering drawing education model according to claim 6, characterized in that: The top of the first limiting slot (23) is connected to the first connecting rod (22), and the top of the first connecting rod (22) is connected to the first pulling block (16). Pulling the first pulling block (16) can cause the first pulling block (16) to drive the first limiting column (21) to squeeze the second spring (20) through the first connecting rod (22), so that the first limiting column (21) shrinks into the first shrinking slot (19), thereby canceling the fixation of the rotating ring (13).

8. The engineering drawing education model according to claim 7, characterized in that: The top outer ring of the holding tray (1) is provided with a second toggle rod (17), the bottom of the second toggle rod (17) is provided with a second contraction groove (24), the second contraction groove (24) penetrates the rotating tray (4), the holding tray (1) is provided with a plurality of groups of second telescopic grooves (28) at the bottom of the rotating tray (4), the second telescopic grooves (28) are parallel to the second contraction grooves (24), and the third spring (25) can bounce the second limiting slot (27) into the second telescopic groove (28) through tension, thereby fixing the rotation of the rotating tray (4).

9. The engineering drawing education model according to claim 8, characterized in that: The top of the second connecting rod (26) is connected to the second pulling block (18), and pulling the second pulling block (18) can cause the second limiting slot (27) connected to the bottom of the second connecting rod (26) to be disengaged from the second telescopic slot (28). Fourth springs (29) are provided on both sides of the bottom of the second toggle rod (17), and a second telescopic block (30) is provided in the fourth spring (29). The outer side of the toggle plate (31) is connected to the toggle plate (31). When the second pulling block (18) is pulled out of the second toggle rod (17), the second telescopic block (30) can pop out the toggle plate (31) through tension, thereby fixing the second pulling block (18) to the top of the second pulling block (18).

10. A teaching method of an engineering drawing education model according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Clamping, by moving the clamping rod (9) toward the outside of the rotating disk (4), then placing the first pulling block (16) in the middle of the rotating disk (4), then releasing the clamping rod (9), the first spring (7) starts to drive the first telescopic block (8) to contract through the contraction force, so that the clamping rod (9) at the top of the first telescopic block (8) starts to clamp the first pulling block (16), then by moving the first toggle rod (15), the first toggle rod (15) starts to drive the rotating ring (13) to slide in the annular groove (12), and drives the limit plate (14) from the first telescopic block (8). The first pull block (16) extends out from the receiving groove on the side of the contraction groove (6), and is inserted into the corresponding limiting groove (11) provided on the first telescopic block (8) according to the size of the first pulling block (16), thereby fixing the clamping of the clamping rod (9). At the same time, the first limiting column (21) at the bottom of the first pulling block (16) reaches above the first limiting slot (23) provided on the bottom of the rotating ring (13) of the rotating disk (4). At this time, the second spring (20) pops the first limiting column (21) out of the first contraction groove (19), and inserts it into the first limiting slot (23) to fix the rotation of the rotating ring (13); Step 2: Adjustment, by pulling the second pulling block (18), the second pulling block (18) drives the second limiting slot (27) to squeeze the third spring (25) through the second connecting rod (26), and shrinks from the second telescopic slot (28) to the second shrinking slot (24), and at the same time, the bottom of the second pulling block (18) extends from the top of the second toggle rod (17), at this time, the second telescopic block (30) pops the toggle plate (31) out of the fourth spring (29) through tension, so that the toggle plate (31) is clamped on both sides of the top of the second toggle rod (17), and the contraction of the second limiting slot (27) is fixed, and then the second toggle rod (17) can be driven by the second toggle rod (17) to drive the rotating disk (4) to rotate in the rotating shaft (3) opened at the top of the containing disk (1).

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