CN213042538U

CN213042538U - Machinery class course teaching aid

Info

Publication number: CN213042538U
Application number: CN202022177773.0U
Authority: CN
Inventors: 陈丽玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-04-23
Anticipated expiration: 2030-09-28

Abstract

The utility model discloses a machinery class course teaching aid, the power distribution box comprises a box body, bottom half center department rotates and is connected with the carousel, box top center department opens central department and rotates in recess and the recess and be connected with the threaded rod, threaded rod one end runs through and is close to commentaries on classics piece one end threaded connection and has the slider in the box outside extension fixedly connected with commentaries on classics piece and the threaded rod. The utility model discloses in, through setting up recess, threaded rod, slider, U type frame, a clamping device, be convenient for through the rotatory slider that drives of threaded rod removal, realize the distance between two U type frames and adjust, and then realize the installation of counter shaft through setting up a plurality of first clamping device, the teacher of being convenient for demonstrates the transmission between pivot and pivot or pivot and the gear.

Description

Machinery class course teaching aid

Technical Field

The utility model relates to a teaching aid field especially relates to a machinery class course teaching aid.

Background

The machine is a tool device which can help people to reduce work difficulty or save labor, and articles such as chopsticks, brooms and tweezers can be called as the machine, and the machine is a simple machine. The complex machine is composed of two or more simple machines.

The most common mechanical structure is various gears, different functions can be realized through the meshing of different gears, and teachers can only show the knowledge to students in a text or image picture mode due to lack of practical teaching aids when explaining the knowledge, and the knowledge cannot be smoothly absorbed by students with weak space imagination.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a mechanical course teaching tool.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a mechanical course teaching tool comprises a box body, wherein a rotary table is rotatably connected at the center of the bottom of the box body, a groove is formed in the center of the top of the box body, a threaded rod is rotatably connected at the center of the groove, one end of the threaded rod penetrates through the box body and extends outwards to be fixedly connected with a rotating block, a sliding block is connected in the threaded rod in a threaded manner and is close to one end of the rotating block, two U-shaped frames are symmetrically arranged at the top of the box body, a rectangular through groove is symmetrically formed in the center of one opposite side in each U-shaped frame, a plurality of supporting rods are arranged on one opposite side of each U-shaped frame, a rectangular groove arranged in the horizontal direction is formed in the center of each;

the first clamping device comprises a stop block, a circular groove is formed in the center of one side of the stop block, a first auxiliary block is fixedly connected to the center of one side of the stop block, which is far away from the circular groove, a fixing screw is fixedly connected to one side of the first auxiliary block, which is far away from the circular groove, and a fixing nut is in threaded connection with one side of the fixing screw, which is far away from the circular groove;

the second clamping device comprises an installation disc, wherein a second auxiliary block is fixedly connected to the center of one side of the installation disc, and a limiting screw is fixedly connected to one side of the installation disc far away from the second auxiliary block.

As a further description of the above technical solution:

and the U-shaped frame close to one side of the rotating block in the two U-shaped frames is fixedly connected with the sliding block, and the U-shaped frame far away from one side of the rotating block is fixedly connected with the top of the box body.

As a further description of the above technical solution:

the support rod is characterized in that the centers of the two ends of the support rod are symmetrically and fixedly connected with connecting screw rods, the connecting screw rods are in threaded connection with connecting nuts, and the sizes of the connecting screw rods are matched with the sizes of the rectangular through grooves.

As a further description of the above technical solution:

the first auxiliary block and the second auxiliary block are arranged in a rectangular mode and are in sliding connection with the inner side wall of the rectangular groove.

As a further description of the above technical solution:

the size of the stop block and the size of the mounting plate are larger than that of the rectangular groove.

As a further description of the above technical solution:

and one end of the limiting screw rod face, which is far away from the mounting disc, is in threaded connection with a limiting nut.

The utility model discloses following beneficial effect has:

1. the utility model discloses a set up bracing piece, rectangular channel, connecting screw, coupling nut, be convenient for realize through coupling nut and connecting screw cooperation that the bracing piece is fixed in the relative one side of U type frame, simultaneously through setting up a plurality of bracing pieces, be convenient for realize the fixed of multiple gear through rectangular channel and second clamping device, the teacher of being convenient for demonstrates the transmission between the gear of different diameters and position, the transmission knowledge between the better understanding gear of help student.

2. The utility model discloses a set up recess, threaded rod, slider, U type frame, a clamping device, be convenient for remove through the rotatory drive slider of threaded rod, realize the distance between two U type frames and adjust, and then realize the installation of counter shaft through setting up a plurality of clamping device, the teacher of being convenient for demonstrates the transmission between pivot and pivot or pivot and the gear.

Drawings

Fig. 1 is a front view of a mechanical course teaching aid provided by the present invention;

FIG. 2 is a side cross-sectional view of FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a schematic structural view of the first clamping device;

fig. 5 is a schematic structural view of the second clamping device.

Illustration of the drawings:

1. a rectangular groove; 2. a support bar; 3. a turntable; 4. rotating the block; 5. a box body; 6. a U-shaped frame; 7. connecting a screw rod; 8. a connecting nut; 9. a rectangular through groove; 10. a slider; 11. a threaded rod; 12. a groove; 13. a stopper; 14. a circular groove; 15. fixing the screw rod; 16. fixing a nut; 17. mounting a disc; 18. a second auxiliary block; 19. a limit screw; 20. a limit nut; 21. a first auxiliary block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides an embodiment: a mechanical class course teaching tool comprises a box body 5, various gear models are convenient to place, a turntable 3 is rotatably connected at the center of the bottom of the box body 5, the box body 5 is convenient to rotate, students can better observe the mechanical principle during demonstration, a groove 12 is formed in the center of the top of the box body 5, a threaded rod 11 is rotatably connected at the center of the groove 12, one end of the threaded rod 11 penetrates through the box body 5 to extend outwards and is fixedly connected with a rotating block 4, a sliding block 10 is connected at one end, close to the rotating block 4, in the threaded rod 11, the sliding block 10 is convenient to move when the threaded rod 11 rotates, two U-shaped frames 6 are symmetrically arranged at the top of the box body 5, shaft type demonstration models are convenient to use, a rectangular through groove 9 is symmetrically formed in the center of one opposite side in each U-shaped frame 6, a plurality of supporting rods 2 are arranged on the opposite side of each U-shaped frame 6, a rectangular groove, a plurality of first clamping devices and second clamping devices are arranged in the rectangular through groove 9;

the first clamping device comprises a stop block 13, a circular groove 14 is formed in the center of one side of the stop block 13, a first auxiliary block 21 is fixedly connected to the center of one side, away from the circular groove 14, of the stop block 13, the circular groove 14 is convenient for placing two ends of the shaft model, demonstration of the shaft mechanical model is convenient by matching two U-shaped frames 6, a fixing screw 15 is fixedly connected to one side, away from the circular groove 14, of the first auxiliary block 21, a fixing nut 16 is connected to one side, away from the circular groove 14, of the fixing screw 15 in a threaded manner, and the first clamping device is convenient to stabilize through the fixing nut 16 and the fixing screw 15;

the second clamping device comprises a mounting disc 17, the gear type model is rotatably connected to the center of one side of the mounting disc 17, a second auxiliary block 18 is fixedly connected to the center of one side of the mounting disc 17, the second auxiliary block 18 is far away from the mounting disc 17, a limiting screw rod 19 is fixedly connected to one side of the mounting disc 17, and the limiting screw rod 19 and a limiting nut 20 can guarantee that the second clamping device is stably mounted.

The U-shaped frame 6 close to one side of the rotating block 4 in the two U-shaped frames 6 is fixedly connected with the sliding block 10, the U-shaped frame 6 far away from one side of the rotating block 4 is fixedly connected with the top of the box body 5, when the sliding block 10 moves, the distance between the two U-shaped frames 6 is convenient to adjust, the connecting screw 7 is symmetrically and fixedly connected with the center of the two ends of the supporting rod 2, the connecting nut 8 is in threaded connection with the connecting screw 7, the mounting stability of the supporting rod 2 is realized through the connecting nut 8, the size of the connecting screw 7 is matched with the size of the rectangular through groove 9, the first auxiliary block 21 and the second auxiliary block 18 are arranged in a rectangular shape, the first auxiliary block 21 and the second auxiliary block 18 are in sliding connection with the inner side wall of the rectangular groove 1, when the first clamping device and the second clamping device are positioned in the rectangular groove 1, the first auxiliary block 21 and the second auxiliary block 18 can ensure that the first clamping device and the second clamping device rotate, the size, prevent that first clamping device from following the roll-off in the rectangular channel 1, influence the tight fixed of clamp of axle type model, stop screw 19 rod face is kept away from mounting disc 17 one end threaded connection has stop nut 20.

The first embodiment is as follows: select the second clamping device of suitable quantity, take out the gear model that needs the demonstration from box 5, rotate gear model and connect and install in mounting disc 17 one side center department, then make a plurality of bracing pieces 2 can remove in rectangular through groove 9 through loosening coupling nut 8, treat a plurality of bracing pieces 2 and finish according to the diameter adjustment of demonstration gear, it makes bracing piece 2 fixed to screw up coupling nut 8, then put into rectangular channel 1 with the second auxiliary block 18 of second clamping device, make a plurality of gear model intermeshing through removing a plurality of second auxiliary blocks 18, realize second clamping device rigidity through screwing up stop nut 20, the teacher of being convenient for demonstrates the meshing between the not unidimensional gear and the drive ratio between the gear.

Example two: the axle type part model is taken out, put into the circular slot 14 of first clamping device with the both ends of axle type part model, then through 8 adjustment bracing pieces's of coupling nut position 2, guarantee bracing piece 2 position phase-matches on two U type framves 6, then rotatory turning block 4 makes slider 10 and U type frame 6 remove, put the first supplementary piece 21 of second clamping device respectively in the rectangular channel 1 of both sides, rethread fixation nut 16 and fixation screw 15's threaded connection, realize the fixed of axle type model, through setting up a plurality of first clamping device, can install a plurality of axle type part models, be convenient for the audio-visual operating condition between the demonstration axle type part of teacher.

Example three: the support rod 2 is taken out from the rectangular through groove 9 by loosening the connecting nut 8, the taken-out support rod 2 is placed between the two U-shaped frames 6, the sliding block 10 and the U-shaped frames 6 move through the rotating block 4, when the connecting screw rods 7 at the two ends of the taken-out support rod 2 are positioned in the rectangular through groove 9, the connecting screw rods 7 are ensured to be positioned in the rectangular groove 1 at the same time, then the taken-out support rod 2 is fixed by connecting the connecting screw rods 7 through the connecting nut 8 in a threaded manner, then a plurality of helical gear part models are rotatably connected to the second clamping devices, then the plurality of second clamping devices are respectively connected with the rectangular groove 1 through the second auxiliary block 18, the position stability of the second clamping device is realized through the limiting nut 20, and the meshing of gears for demonstrating the spatial position by a teacher can be facilitated through the horizontally-placed support rod 2, the support rod 2 in the rectangular, such as a meshed connection between helical gears.

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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a machinery class course teaching aid, includes box (5), its characterized in that: the box body (5) is characterized in that a turntable (3) is rotatably connected at the center of the bottom of the box body (5), a groove (12) is formed in the center of the top of the box body (5), a threaded rod (11) is rotatably connected at the center of the inner part of the groove (12), one end of the threaded rod (11) penetrates through the box body (5) to extend outwards and is fixedly connected with a rotating block (4), a sliding block (10) is connected with one end of the threaded rod (11), which is close to the rotating block (4), through threads are formed at one end of the threaded rod, which is opposite to the rotating block (4), two U-shaped frames (6) are symmetrically arranged at the top of the box body (5), rectangular through grooves (9) are symmetrically formed in the centers of opposite sides of the U-shaped frames (6), a plurality of supporting rods (2) are arranged on opposite sides of the U-shaped frames (;

the first clamping device comprises a stop block (13), a circular groove (14) is formed in the center of one side of the stop block (13), a first auxiliary block (21) is fixedly connected to the center of one side, away from the circular groove (14), of the stop block (13), a fixing screw (15) is fixedly connected to one side, away from the circular groove (14), of the first auxiliary block (21), and a fixing nut (16) is in threaded connection with one side, away from the circular groove (14), of the fixing screw (15);

the second clamping device comprises a mounting disc (17), wherein a second auxiliary block (18) is fixedly connected to the center of one side of the mounting disc (17) and the second auxiliary block (18) is far away from the mounting disc (17) and is fixedly connected with a limiting screw rod (19).

2. The mechanical lesson teaching aid of claim 1, wherein: and two U-shaped frames (6) close to one side of the rotating block (4) in the U-shaped frames (6) are fixedly connected with the sliding block (10), and the U-shaped frames (6) far away from one side of the rotating block (4) are fixedly connected with the top of the box body (5).

3. The mechanical lesson teaching aid of claim 1, wherein: bracing piece (2) both ends center department symmetry fixedly connected with connecting screw rod (7) and connecting screw rod (7) threaded connection have coupling nut (8), connecting screw rod (7) size and rectangle lead to groove (9) size phase-match.

4. The mechanical lesson teaching aid of claim 1, wherein: the first auxiliary block (21) and the second auxiliary block (18) are arranged in a rectangular mode, and the first auxiliary block (21) and the second auxiliary block (18) are in sliding connection with the inner side wall of the rectangular groove (1).

5. The mechanical lesson teaching aid of claim 1, wherein: the size of the stop block (13) and the size of the mounting disc (17) are larger than that of the rectangular groove (1).

6. The mechanical lesson teaching aid of claim 1, wherein: and one end of the face of the limit screw rod (19) far away from the mounting disc (17) is in threaded connection with a limit nut (20).