CN210489030U

CN210489030U - Automatic connecting rod curve plotter

Info

Publication number: CN210489030U
Application number: CN201921234446.5U
Authority: CN
Inventors: 尹君驰
Original assignee: Xinjiang Institute of Engineering
Current assignee: Xinjiang Institute of Engineering
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2020-05-08
Anticipated expiration: 2029-08-01

Abstract

Automatic appearance is drawn to connecting rod curve, both ends are provided with the LED lamp strip of illumination light guide plate respectively about the show incasement, gear motor fixes back one side at the show case, the opposite side is provided with the level and runs through the regulation slide of show case and light guide plate in the show case, the one end of regulating spindle is fixed in the show case through the two nuts of cliping show case back lateral wall and light guide plate, regulating spindle pot head in the show case has the driven connecting rod that can free rotation, rotate through middle telescopic link between the other end of driven connecting rod and the initiative connecting rod other end and be connected, the cover has slidable drawing pen stand on the middle telescopic link, be provided with the painting brush on the drawing pen stand, after the complete lock of white clear glass board, the nib of painting brush just writes a face in close contact with white clear glass. The utility model discloses can be abundanter show each rod length of link mechanism and the curvilinear relation of drawing, the teaching demonstration of being convenient for is used.

Description

Automatic connecting rod curve drawing instrument

Technical Field

The utility model relates to a machinery teaching aid, an automatic connecting rod curve drawing appearance specifically says so.

Background

A link mechanism teaching aid for mechanical principle teaching is many, but is simple manual teaching aid mostly, and the main shortcoming of existence is that these teaching aids are when drawing the connecting rod curve, and the pole length of each pole generally can't change, is difficult to accomplish like animation demonstration moreover, and the influence that the pole length ratio is curved shape is discussed in depth, also can't show the speed change law of connecting rod point in the removal in-process, demonstrates promptly directly perceived inadequately.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims to provide an automatic connecting rod curve drawing instrument.

The utility model is to realize the above purpose, the automatic connecting rod curve drawing instrument, including the front side leave open-ended show case and rotate the white transparent glass board of lock on the show case opening through the hinge, the connecting rod motion structure is located the show case, the painting brush on the connecting rod structure is towards the outside, and can paste completely on the medial surface of the white transparent glass board after the closure, the medial surface of white transparent glass board is used for writing, the painting brush adopts the whiteboard pen, the whiteboard pen not only can be on the blank (the surface of itself is smooth) but also can write on glass, smooth iron, plastics surface, also conveniently erase;

the inner side surface of the back side wall of the display box is provided with a white transparent light guide plate, the upper end and the lower end in the display box are respectively provided with an LED light bar illuminating the light guide plate, the light guide plate and the LED light bar form the simplest backlight component commonly used by the current electronic equipment screen and can provide sufficient illumination, a speed reducing motor is fixed at one side of the back of the display box, a power output shaft of the speed reducing motor vertically penetrates through the display box and the light guide plate and is fixedly connected with a driving connecting rod in the display box, the other side in the display box is provided with a horizontal adjusting slideway penetrating through the display box and the light guide plate, one end of an adjusting shaft is fixed in the display box through a double nut clamping the back side wall of the display box and the light guide plate, one end of the adjusting shaft in the display box is sleeved with a driven connecting rod capable of freely rotating, the other end, the upper cover of middle flexible connecting rod has slidable painting brush seat, is provided with the painting brush on the painting brush seat, and after white transparent glass board lock completely, the nib of painting brush just with white transparent glass board medial surface writing face in close contact with.

The utility model discloses a light shines, not only show the relative motion between the body of rod on white clear glass board, the orbit of the painting brush of following body of rod motion also can be drawn on white clear glass board, the curve that will draw carries out perfect combination with body of rod motion, and adopt this kind of link structure, not only can adjust the curved shape of position change of drawing pen stand, but also can change the length of middle flexible link and the position realization curve shape's of regulating spindle adjustment, for traditional connecting rod drawing device, the figure control range is wider has more variety, can be abundanter demonstrate each rod length of link mechanism and the curved relation of drawing, the teaching demonstration of being convenient for is used.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic side view of the present invention.

Detailed Description

As shown in figure 1 and figure 2, the automatic connecting rod curve drawing instrument comprises a display box 1 with an opening at the front side and a white transparent glass plate 2 which is rotatably buckled on the opening of the display box 1 through a hinge, namely the transparent glass is slightly white, so that the glass plate can be transparent and is convenient for black strokes to better see a track curve on the display box, a plurality of supporting legs 18 are arranged at the bottom of the display box 1, a white transparent light guide plate 3 is arranged on the inner side surface of the back side wall of the display box 1, LED lamp strips 4 illuminating the light guide plate 3 are respectively arranged at the upper end and the lower end in the display box 1, a speed reducing motor 5 is fixed at one side of the back of the display box 1, a power output shaft of the speed reducing motor 5 vertically penetrates through the display box 1 and the light guide plate 3 and is fixedly connected with a driving connecting rod 6 in the display box 1, a horizontal adjusting slide 7 penetrating through the, one end of the adjusting shaft 8 is fixed in the display box 1 through a double nut which clamps the back side wall of the display box 1 and the light guide plate 3, the nut outside the display box 1 is a butterfly nut which is convenient for adjusting the distance between the adjusting shaft 8 and the power output shaft of the speed reducing motor 5 from the back of the display box 1, one end of the adjusting shaft 8 in the display box 1 is sleeved with a driven connecting rod 9 which can rotate freely, the other end of the driven connecting rod 9 is rotatably connected with the other end of the driving connecting rod 6 through a middle telescopic connecting rod 10, the middle telescopic connecting rod 10 is sleeved with a slidable painting brush seat 11, a painting brush 12 is arranged on the painting brush seat 11, one side of the painting brush seat 11 is provided with a positioning bolt 17 which penetrates through the painting brush seat 11 and the inner end of which is in close contact with the middle telescopic connecting rod 10 and is used for fixing the painting brush seat 11, after the white transparent glass plate 2 is completely buckled, the, the speed reducing motor 5 controls rotation through a reversing switch 13 for controlling forward and reverse rotation;

middle telescopic link 10 comprises slice sleeve and the slice slat inserted in the sleeve, be provided with the fastening bolt 14 that is used for the fixed clamping slat on the sleeve, the length of telescopic link 10 can be adjusted to adjusting sleeve and slat, the regulation of similar telescopic link commonly used at present, the length of adjustable telescopic link 10 can be fixed to the fastening bolt 14 of screwing up after adjusting, the tip of sleeve and slat is respectively through running through initiative connecting rod 6, the round pin axle 15 of driven connecting rod 9 respectively with initiative connecting rod 6, driven connecting rod 9 rotates and is connected, and between sleeve and the initiative connecting rod 6, overlap respectively on the round pin axle 15 between slat and the driven connecting rod 9 and have spacer 16, can further prevent mutual interference between the body of rod like this, guarantee that whole connecting rod structure operates more smoothly.

In order to open and fix the white transparent glass plate 2 conveniently, the white transparent glass plate 2 is provided with an iron plate 20 corresponding to the magnet block 19 on the opening side of the display box 1, when the white transparent glass plate 2 is completely buckled, the iron plate 20 is firmly adsorbed on the magnet block 19, and the outer side wall of the white transparent glass plate 2 at one end of the iron plate 20 is also provided with a handle.

The white transparent glass plate 2 is closed, the speed reducing motor 5 is started, the driving connecting rod 6, the middle telescopic connecting rod 10 and the driven connecting rod 9 are driven to rotate by the speed reducing motor 5, the painting brush is enabled to draw a curve figure on the white transparent glass plate 2, at the moment, the LED lamp strip 4 can be opened, backlight is lightened, the display box 1 is relatively closed, the lamp strip can better illuminate each rod body, the drawn curve figure is clearer, in order to further improve the display effect, the driving connecting rod 6, the middle telescopic connecting rod 10 and the driven connecting rod 9 can be made of transparent plastic plates with different colors, such as red, blue and green, thus, each rod body is formed by lines with certain color on the white transparent glass plate 2 under the backlight action, the observation effect is better, the track curve drawn by the utility model is as shown in figure 1, is in the shape of a horizontally laid figure of '8', when the distance between the adjusting shaft 8 and the power output shaft of the speed reducing motor 5 is adjusted from the back of the display box 1, when the middle telescopic connecting rod 10 is lengthened, the drawn figure is that the number '8' is laid down and is more flat and longer, and other adjusting modes are left to be studied in experiments.

It should be noted that the utility model discloses can do big doing, the skilled person in the art can be according to the utility model discloses the reasonable model of selecting gear motor 5 of size to need not pay out creative work, as long as the realization can drive rotation such as initiative connecting rod 6.

Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should be able to make changes, alterations, additions or substitutions within the scope of the present invention.

Claims

1. An automatic connecting rod curve drawing instrument, characterized in that it includes a display box (1) with an opening on the front side and a white transparent glass plate (2) that is fastened on the opening of the display box (1) through hinges, and displays The inner side of the back side wall of the box (1) is provided with a white and transparent light guide plate (3), and the upper and lower ends of the display box (1) are respectively provided with LED light bars (4) illuminating the light guide plate (3), and a geared motor ( 5) It is fixed on the back side of the display box (1), and the power output shaft of the gear motor (5) vertically penetrates the display box (1) and the light guide plate (3) and is connected with the active link (6) in the display box (1). ) is fixedly connected, the other side of the display box (1) is provided with a horizontal adjustment slideway (7) that runs through the display box (1) and the light guide plate (3), and one end of the adjustment shaft (8) clamps the display box ( 1) The double nuts of the back side wall and the light guide plate (3) are fixed in the display box (1). One end of the adjustment shaft (8) in the display box (1) is covered with a freely rotatable driven link (9). The other end of the driven link (9) and the other end of the driving link (6) are connected in rotation through an intermediate telescopic link (10), and a slidable brush holder (11) is sleeved on the intermediate telescopic link (10). , a paintbrush (12) is arranged on the paintbrush holder (11), and after the white transparent glass plate (2) is fully buckled, the tip of the paintbrush (12) is just in close contact with the writing surface on the inner side of the white transparent glass plate (2).

2 . The automatic connecting rod curve drawing instrument according to claim 1 , wherein the deceleration motor ( 5 ) is controlled to rotate by a reverse switch ( 13 ) that controls forward and reverse rotation. 3 .

3. The automatic connecting rod curve drawing instrument according to claim 1, characterized in that: the intermediate telescopic connecting rod (10) is composed of a sheet-like sleeve and a sheet-like long strip inserted in the sleeve, and the sleeve is provided with There are fastening bolts (14) for fixing and clamping the long strip, and the ends of the sleeve and the long strip are respectively connected with the pins (15) through the driving connecting rod (6) and the driven connecting rod (9) respectively. The driving link (6) and the driven link (9) are connected in rotation, and the pins (15) between the sleeve and the driving link (6) and between the long strip and the driven link (9) are on the A spacer (16) is provided respectively.

4. The automatic connecting rod curve drawing instrument according to claim 1, characterized in that: one side of the brush holder (11) is provided with a brush holder (11) that penetrates through the brush holder (11) and whose inner end is in close contact with the middle telescopic link (10). Set screw (17).

5. The automatic connecting rod curve drawing instrument according to claim 1, characterized in that: the bottom of the display box (1) supports a plurality of legs (18).

6. The automatic connecting rod curve drawing instrument according to claim 1, characterized in that: the white transparent glass plate (2) is provided with an iron plate ( 20), when the white transparent glass plate (2) is fully buckled, the iron plate (20) is firmly adsorbed on the magnet block (19). handle.