CN211479502U

CN211479502U - Teaching device for mechanical principle

Info

Publication number: CN211479502U
Application number: CN202020498179.9U
Authority: CN
Inventors: 付志豪; 付若愚; 吴永香
Original assignee: Huanghe Science and Technology College
Current assignee: Huanghe Science and Technology College
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-09-11
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses a teaching device for theory of mechanics, comprises a box bod, the top of box body is provided with the top cap, box body top one side is provided with and is fixed with the fixed plate, pivot and fixed plate swing joint that the top cap passes through the setting, intermediate position department is provided with the base in the box body, the bottom of base is fixed with the extension board, the spout has all been left to the both sides inner wall department of box body, the both ends of base all are connected with the connecting rod, the other end of connecting rod lets in the spout, the other end of connecting rod is connected with the slider, the slider is arranged in the spout, one side top of base is connected with the bracing piece, one side is provided with the turning handle outside the box body, the one end of turning handle is connected with first lead screw, the other end of first lead. Has the advantages that: the utility model discloses a positive and negative rotation turning handle can realize the lift of base for stretch out mechanical model on the base in the box body, mechanical teaching demonstration or explanation of being convenient for.

Description

Teaching device for mechanical principle

Technical Field

The utility model relates to a machinery teaching equipment field particularly, relates to a teaching device for theory of mechanics.

Background

The development of modern education technique in China begins in the 20 th century and is called electrochemical education. The way of transmission of the media such as slide show and movie used in the current audio-visual education activities for teaching is a big leap forward than the original oral-aural education and the subsequent printed media, and belongs to the category of modern education technology, but the media is not the modern education technology in the complete sense and is only the primary stage of the development of the modern education technology. The electronic teaching equipment is an indispensable equipment concept for modern education technology education of computers, projectors, slides, sound recording, video recording, broadcasting, movies, televisions, computers and the like, applies modern education theories and technologies, and realizes theories and practices of teaching modernization through design, development, application, management and evaluation of teaching processes and resources. However, the existing mechanical principle model is placed outside for a long time, dust easily falls into the mechanical model, the mechanical model is complex in shape and structure, and the dust is difficult to clean if the dust falls into the mechanical model, so that the workload of operators is increased.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a teaching device for theory of mechanics to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a teaching device for mechanical principle comprises a box body, wherein a top cover is arranged at the top of the box body, a fixed plate is fixedly arranged on one side of the top of the box body, the number of the fixed plates is two, the top cover is movably connected with the fixed plates through a rotating shaft, a base is arranged at the middle position in the box body, an extension plate is fixedly arranged at the bottom of the base, the number of the extension plate is also two, sliding grooves are reserved on the inner walls of the two sides of the box body, connecting rods are connected with the two ends of the base, the other ends of the connecting rods are led into the sliding grooves, sliding blocks are connected with the other ends of the connecting rods and are arranged in the sliding grooves, a supporting rod is connected with the top of one side of the base, a ball groove is reserved on the top of the supporting rod, balls matched with the shape and the size of the ball, one end of the rotating handle is connected with a first screw rod, the other end of the first screw rod is communicated with the inner bottom of the box body, the other end of the first screw rod is connected with a connecting shaft, the other end of the connecting shaft is connected with a second screw rod, and a bearing seat groove is reserved on the inner wall of the box body close to the second screw rod.

Furthermore, the other end of the second screw rod is movably connected with a bearing seat groove of the box body through a bearing seat, and the bearing seat is arranged in the bearing seat groove.

Furthermore, a first threaded sleeve is connected to the first screw rod through threads, and a second threaded sleeve is connected to the second screw rod through threads.

Furthermore, a first connecting piece is arranged between the first threaded sleeve and the base, and a second connecting piece is arranged between the second threaded sleeve and the base.

Furthermore, one end of the first connecting piece is movably connected with the first threaded sleeve through a set fixing shaft, and one end of the second connecting piece is movably connected with the second threaded sleeve through a set fixing shaft.

Furthermore, the other ends of the first connecting piece and the second connecting piece are respectively movably connected with the extension plate through a fixed shaft.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses simple structure, convenient operation can realize the lift of base through positive and negative rotation turning handle for stretch out mechanical model on the base in the box body, mechanical teaching demonstration or explanation of being convenient for, not the time spent, accomodate mechanical model into the box body in, avoid falling into the dust and increase follow-up cleaning work.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a teaching device for mechanical principles according to an embodiment of the present invention;

fig. 2 is a front cross-sectional view of a teaching device for mechanical principles in accordance with an embodiment of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2 according to an embodiment of the present invention.

Reference numerals:

1. a box body; 2. a top cover; 3. a fixing plate; 4. a rotating shaft; 5. a base; 6. a chute; 7. a connecting rod; 8. a slider; 9. a support bar; 10. a ball groove; 11. a ball bearing; 12. an extension plate; 13. a handle is rotated; 14. a first lead screw; 15. a connecting shaft; 16. a second lead screw; 17. a bearing seat; 18. a bearing seat groove; 19. a first threaded sleeve; 20. a second threaded sleeve; 21. a first connecting member; 22. a second connecting member; 23. and fixing the shaft.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

referring to fig. 1-3, a teaching device for mechanical principles according to an embodiment of the present invention includes a box body 1, a top cover 2 is disposed on the top of the box body 1, a fixed plate 3 is disposed on one side of the top of the box body 1, two fixed plates 3 are provided, the top cover 2 is movably connected to the fixed plate 3 through a set rotating shaft 4, a base 5 is disposed at a middle position in the box body 1, an extension plate 12 is fixed to the bottom of the base 5, there are two extension plates 12, sliding grooves 6 are left on inner walls of both sides of the box body 1, both ends of the base 5 are connected to a connecting rod 7, the other end of the connecting rod 7 is inserted into the sliding groove 6, the other end of the connecting rod 7 is connected to a slider 8, the slider 8 is disposed in the sliding groove 6, and a supporting rod 9 is connected to a top of one side of the, the utility model discloses a bearing box, including box body 1, bracing piece 9, ball groove 10 is left at the top of bracing piece, be provided with in the ball groove 10 with ball groove 10 shape size looks adaptation ball 11, 1 outer one side of box body is provided with turning handle 13, the one end of turning handle 13 is connected with first lead screw 14, the other end of first lead screw 14 lets in the bottom in the box body 1, the other end of first lead screw 14 is connected with connecting axle 15, the other end of connecting axle 15 is connected with second lead screw 16, bearing seat groove 18 is left to box body 1 inner wall department near second lead screw 16.

Through the above technical scheme of the present invention, the other end of the second lead screw 16 is movably connected with the bearing seat groove 18 of the box body 1 through the set bearing seat 17, the bearing seat 17 is arranged in the bearing seat groove 18, the first lead screw 14 is connected with the first thread bushing 19 through the thread, the second lead screw 16 is connected with the second thread bushing 20 through the thread, wherein the thread on the second lead screw 16 is a positive thread, the first lead screw 14 is a thread opposite to the second lead screw 16, the first connecting member 21 is arranged between the first thread bushing 19 and the base 5, the second connecting member 22 is arranged between the second thread bushing 20 and the base 5, one end of the first connecting member 21 is movably connected with the first thread bushing 19 through the set fixing shaft 23, one end of the second connecting member 22 is movably connected with the second thread bushing 20 through the set fixing shaft 23, the other ends of the first connecting piece 21 and the second connecting piece 22 are movably connected with the extension plate 12 through a fixed shaft 23.

When the demonstration box is used for specific application, when a mechanical model on the base 5 needs to be demonstrated or explained, the rotating handle 13 is rotated, the rotating handle 13 drives the first screw rod 14, the connecting shaft 15 and the second screw rod 16 rotate synchronously, so that the first threaded sleeve 19 moves towards the left side on the first screw rod 14, the second threaded sleeve 20 moves towards the right side on the second screw rod 16, namely, an included angle between the first connecting piece 21 and the second connecting piece 22 is reduced, so that the base 5 moves upwards, in the process of upward movement of the base 5, the balls 11 on the supporting rod 9 are in contact with the top cover 2, and the top cover 2 is opened, so that the mechanical model on the base 5 extends out of the box body 1, and the demonstration box is convenient for mechanical teaching demonstration or explanation, when the demonstration box is not used, the rotating handle 13 rotates reversely, the mechanical model is accommodated into the box body 1, and the phenomenon that dust falls into the subsequent cleaning work is.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The teaching device for the mechanical principle is characterized by comprising a box body (1), wherein a top cover (2) is arranged at the top of the box body (1), a fixed plate (3) is fixedly arranged on one side of the top of the box body (1), the number of the fixed plates (3) is two, the top cover (2) is movably connected with the fixed plate (3) through a rotating shaft (4), a base (5) is arranged at the middle position in the box body (1), an extension plate (12) is fixedly arranged at the bottom of the base (5), the number of the extension plates (12) is also two, sliding grooves (6) are reserved at the inner walls of two sides of the box body (1), connecting rods (7) are connected to two ends of the base (5), the other ends of the connecting rods (7) are led into the sliding grooves (6), and sliding blocks (8) are connected to the other ends of the connecting rods (7), the utility model discloses a box body, including base (5), slider (8), ball groove (10) are provided with ball (11) with ball groove (10) shape size looks adaptation in the slider (8) is arranged in spout (6), one side top of base (5) is connected with bracing piece (9), ball groove (10) are left at bracing piece (9) top, be provided with in ball groove (10) ball (11) with ball groove (10) shape size looks adaptation, box body (1) outer one side is provided with turning handle (13), the one end of turning handle (13) is connected with first lead screw (14), the other end of first lead screw (14) lets in bottom in box body (1), the other end of first lead screw (14) is connected with connecting axle (15), the other end of connecting axle (15) is connected with second lead screw (16), box body (1.

2. The mechanical principle teaching device as claimed in claim 1, wherein the other end of the second lead screw (16) is movably connected with a bearing seat groove (18) of the box body (1) through a bearing seat (17), and the bearing seat (17) is arranged in the bearing seat groove (18).

3. A device for teaching mechanical principles as claimed in claim 1, wherein said first screw (14) is threadedly connected to a first threaded sleeve (19) and said second screw (16) is threadedly connected to a second threaded sleeve (20).

4. A device for teaching mechanical principles as claimed in claim 3, wherein a first connection member (21) is provided between the first threaded sleeve (19) and the base (5), and a second connection member (22) is provided between the second threaded sleeve (20) and the base (5).

5. A mechanical principle teaching device as claimed in claim 4, wherein one end of the first connecting piece (21) is movably connected with the first threaded sleeve (19) through a fixed shaft (23), and one end of the second connecting piece (22) is movably connected with the second threaded sleeve (20) through a fixed shaft (23).

6. A device for teaching mechanical principles as claimed in claim 4, wherein the other ends of said first (21) and second (22) connecting members are respectively movably connected to the extension plate (12) by means of a fixed shaft (23).