CN209729206U - A kind of physical teaching aid - Google Patents

Abstract

The utility model discloses a kind of physical teaching aids, it is related to physics appliance technology；The placing groove of indent is offered on front side of pedestal, several support parting beads are uniformly fixedly installed in the left and right sidewall of placing groove, it is place position between several support parting beads, friction plate body is placed in place position, the left upper end of pedestal is fixedly installed with fixed frame, the upper end of fixed frame is fixedly connected by the body of rod with rotary shaft body upper limit position block, the rear end of rotary shaft body is fixedly installed with angle scale, pivoted housing is connected on the outside of rotary shaft body, the front end of rotary shaft body is provided with screw thread, nut is connected on screw thread, nut is by pivoted housing interlocking on rotary shaft body, the rear upper end of pivoted housing is fixedly installed with guide needle；The utility model, which can be realized, quickly to be adjusted and installs, and can be realized the experiment of different coefficients of friction, convenient for the accurate understanding of student；Easy to carry and collection, and stability is high when in use, structure is simple, effectively student can be helped to learn, easy to use.

Description

A kind of physical teaching aid

Technical field

The utility model belongs to physics appliance technology, and in particular to a kind of physical teaching aid.

Background technique

Physics is to study the subject of the motion of matter most typically rule and substance basic structure.As taking the lead for natural science Subject, physics research become greatly to universe, as low as all substances such as elementary particle most basic forms of motion and rule The Research foundation of other each natural branch of science.Its theoretical construct makes full use of mathematics as oneself working language, with It tests as the sole criterion for examining theoretical correctness, it is a current most accurate natural science subject.In physics teaching In, many physical equations are dry as dust, and are not easy to remember, and student can not understand in study, and existing physics is taught It is low to learn teaching aid accuracy when carrying out demonstration friction, and much needs to imagine, loses interest when student being caused to learn, efficiency It is low.

Utility model content

It is low to solve existing physics teaching teaching aid accuracy when carrying out demonstration friction, and much need to imagine, it leads The problem of cause student loses interest when learning, low efficiency；The purpose of this utility model is to provide a kind of physical teaching aids.

A kind of physical teaching aid of the utility model, it includes pedestal, support parting bead, friction plate body, fixed frame, adjusting Plate, pivoted housing, angle scale, guides needle, L shape frame body, single-chip microcontroller, touch display screen, timing module, grating, counterweight small at rotary shaft body Vehicle；The placing groove of indent is offered on front side of pedestal, be uniformly fixedly installed in the left and right sidewall of placing groove it is several support every Item is place position between several support parting beads, is placed with friction plate body in place position, the left upper end of pedestal is fixedly installed with fixation The upper end of frame, fixed frame is fixedly connected by the body of rod with rotary shaft body upper limit position block, and the rear end of rotary shaft body is fixedly installed with angle scale, Pivoted housing is connected on the outside of rotary shaft body, the front end of rotary shaft body is provided with screw thread, and nut is connected on screw thread, and nut will For pivoted housing interlocking on rotary shaft body, the rear upper end of pivoted housing is fixedly installed with guide needle, and adjusting is fixedly installed on the right side wall of pivoted housing Plate, the front and back end of adjustable plate are fixedly installed with L shape frame body, form inserting groove between two L shape frame bodies, two L shape frame bodies Left side is fixedly installed with grating, and the upper end of pedestal is fixedly installed with single-chip microcontroller, touch display screen, timing module, power supply and monolithic The power end of machine is electrically connected, and touch display screen, timing module are electrically connected by the input of conducting wire and single-chip microcontroller, output end, Grating is electrically connected by the input terminal of conducting wire and single-chip microcontroller, and counterweight trolley is arranged on adjustable plate.

Preferably, the bottom righthand side of the adjustable plate is fixedly installed with limited post, limited post is elastic.

Preferably, the single-chip microcontroller, timing module are fixedly mounted in electric box, touch display screen is fixedly mounted on electricity On the front side wall of gas tank.

Compared with prior art, the utility model has the following beneficial effects:

One, it can be realized and quickly adjust and install, can be realized the experiment of different coefficients of friction, convenient for the accurate of student Understand；

Two, easy to carry and collection, and stability is high when in use, structure is simple, and effectively student can be helped to learn, It is easy to use.

Detailed description of the invention

The present invention is described in detail by the following detailed description and drawings for ease of explanation,.

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the top view of adjustable plate connection in the utility model；

Fig. 3 is the side view that adjustable plate is connect with L shape frame body in the utility model；

Fig. 4 is the circuit diagram of the utility model.

In figure: 1- pedestal；2- supports parting bead；3- friction plate body；4- fixed frame；5- adjustable plate；6- rotary shaft body；7- pivoted housing； 8- angle scale；9- guides needle；10-L shape frame body；11- single-chip microcontroller；12- touch display screen；13- timing module；14- grating；15- Counterweight trolley；5-1- limited post；6-1- limited block；6-2- nut.

Specific embodiment

To make the objectives, technical solutions and advantages of the present invention clearer, below by shown in the accompanying drawings Specific embodiment describes the utility model.However, it should be understood that these descriptions are merely illustrative, and it is not intended to limit this reality With novel range.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid unnecessarily mixing Confuse the concept of the utility model.

Here, it should also be noted that, in order to avoid having obscured the utility model because of unnecessary details, in the accompanying drawings It illustrate only the structure and/or processing step closely related with scheme according to the present utility model, and be omitted practical with this The little other details of new relationship.

As shown in Figure 1, Figure 2, Figure 3, Figure 4, present embodiment uses following technical scheme: it includes pedestal 1, support Parting bead 2, fixed frame 4, adjustable plate 5, rotary shaft body 6, pivoted housing 7, angle scale 8, guides needle 9, L shape frame body 10, monolithic at friction plate body 3 Machine 11, touch display screen 12, timing module 13, grating 14, counterweight trolley 15；The front side of pedestal 1 offers the placing groove of indent, Pedestal 1 can be realized support, and placing groove can be realized the placement of coefficient of friction plate, uniformly fix in the left and right sidewall of placing groove Several support parting beads 2 are installed, it is place position between several support parting beads 2 that support parting bead 2, which can be realized the placement of friction plate, Friction plate body 3 is placed in place position, the left upper end of pedestal 1 is fixedly installed with fixed frame 4, and fixed frame 4 can be realized rotary shaft body Fixation, the upper end of fixed frame 4 is fixedly connected by the body of rod with the limited block 6-1 on rotary shaft body 6, and limited block can be realized pivoted housing Limit, the rear end of rotary shaft body 6 is fixedly installed with angle scale 8, angle index line is provided on angle scale 8, can measurement angle, The outside of rotary shaft body 6 is connected with pivoted housing 7, and the front end of rotary shaft body 6 is provided with screw thread, nut 6-2 is connected on screw thread, Nut 6-2 can be realized the fixation of shaft, and by 7 interlocking of pivoted housing on rotary shaft body 6, the rear upper end of pivoted housing 7 is fixedly mounted nut 6-2 Have and guide needle 9, guides needle very 9 that can guide the angle of adjusting, be fixedly installed with adjustable plate 5, adjustable plate on the right side wall of pivoted housing 7 5 front and back end is fixedly installed with L shape frame body 10, and L shape frame body 10 can be realized the grafting of friction plate, two L shape frame bodies 10 it Between form inserting groove, the left side of two L shape frame bodies 10 is fixedly installed with grating 14, and grating can be realized detection trolley, pedestal 1 Upper end is fixedly installed with single-chip microcontroller 11, touch display screen 12, timing module 13, and the power end of power supply and single-chip microcontroller 11 electrically connects It connects, touch display screen 12, timing module 13 are electrically connected by the input of conducting wire and single-chip microcontroller 11, output end, and grating 14 passes through The input terminal of conducting wire and single-chip microcontroller 11 is electrically connected, and counterweight trolley 15 is arranged on adjustable plate 5.

Further, the bottom righthand side of the adjustable plate 5 is fixedly installed with limited post 5-1, and limited post 5-1 is elastic.

Further, the single-chip microcontroller 11, timing module 13 are fixedly mounted in electric box, the fixed peace of touch display screen 12 On the front side wall of electric box.

The working principle of the present embodiment is as follows: when in use, realized and supported by pedestal 1, after support, pass through by Nut unclamps, and rotates adjustable plate 5 to adjust angle, when adjusting angle, guides needle that pivoted housing 7 is followed to be rotated, and guides needle It carries out guiding the angle that can observe adjusting that pivoted housing is fixed after the completion of angular adjustment with the scale on angle scale, so Friction plate body 3 is plugged on L shape frame body 10 by the friction plate body 3 for rotating coefficient of friction afterwards, and counterweight trolley 15 realizes counterweight, matches The case where there is a counterweight cabin in the inside of weight trolley, can observe the trolley downslide of different weight, when trolley starts to glide, meter When module realize timing, when Grating examinations arrive trolley when, timing module stopping timing, the time of downslide can be observed at this time, Grating transmits a signal to single-chip microcontroller, carries out hole timing module by single-chip microcontroller and stops timing, and read data, when data are shown It is easy to use in touch display screen, easy to operate, the model 2711P-B6C3A of touch display screen 12；Single-chip microcontroller 11 Model STM8L151C6；The model QR1200 of timing module 13；Grating 14 is YK2 photoelectric sensor.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (3)

1. a kind of physical teaching aid, it is characterised in that: it include pedestal, support parting bead, friction plate body, fixed frame, adjustable plate, Rotary shaft body, angle scale, guides needle, L shape frame body, single-chip microcontroller, touch display screen, timing module, grating, counterweight trolley at pivoted housing；Bottom The front side of seat offers the placing groove of indent, is uniformly fixedly installed with several support parting beads in the left and right sidewall of placing groove, number It is place position between a support parting bead, is placed with friction plate body in place position, the left upper end of pedestal is fixedly installed with fixed frame, Gu The upper end for determining frame is fixedly connected by the body of rod with rotary shaft body upper limit position block, and the rear end of rotary shaft body is fixedly installed with angle scale, shaft Pivoted housing is connected on the outside of body, the front end of rotary shaft body is provided with screw thread, is connected with nut on screw thread, and nut is by pivoted housing For interlocking on rotary shaft body, the rear upper end of pivoted housing is fixedly installed with guide needle, and adjustable plate is fixedly installed on the right side wall of pivoted housing, adjusts The front and back end of section plate is fixedly installed with L shape frame body, and inserting groove is formed between two L shape frame bodies, and the left side of two L shape frame bodies is solid Dingan County is equipped with grating, and the upper end of pedestal is fixedly installed with single-chip microcontroller, touch display screen, timing module, the electricity of power supply and single-chip microcontroller Source is electrically connected, and touch display screen, timing module are electrically connected by the input of conducting wire and single-chip microcontroller, output end, and grating is logical The input terminal for crossing conducting wire and single-chip microcontroller is electrically connected, and counterweight trolley is arranged on adjustable plate.

2. a kind of physical teaching aid according to claim 1, it is characterised in that: the fixed peace of the bottom righthand side of the adjustable plate Equipped with limited post, limited post is elastic.

3. a kind of physical teaching aid according to claim 1, it is characterised in that: the single-chip microcontroller, timing module are fixed It is mounted in electric box, touch display screen is fixedly mounted on the front side wall of electric box.