CN110220079A - A kind of fixation device for English teaching - Google Patents

Abstract

The invention discloses a kind of fixation devices for English teaching, including column and horizontal support arm, the column is in hollow structure, reverse-flighted screw and driving groove are provided on column, the reverse-flighted screw is connected to inside column rear end by bearing interference, worm gear is mounted with by bolt among reverse-flighted screw, the driving groove is opened among column inside left, geared worm is connected with by bearing interference inside driving groove, the geared worm and worm gear tooth engagement, geared worm front end is connected with the first knob by pin shaft, the horizontal support arm is welded in top on the right side of column.The present invention easily can carry out installation fixation to English teaching equipment, at the same also can the position to English teaching equipment carry out displacement adjusting.

Description

A fixture for teaching English

technical field

The invention relates to a fixing device for English teaching, which belongs to the technical field of teaching equipment.

Background technique

English teaching refers to the process of teaching English to people whose first language is English or not. At present, English teaching needs to be taught with the help of equipment, and the existing equipment does not have any fixing devices, so it is difficult to fix it on the podium and requires manual labor. Support will seriously affect the teaching efficiency. In order to solve the above problems, a new technical solution is provided.

Contents of the invention

The purpose of the present invention is to provide a fixing device for English teaching, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention adopts the following technical solutions: a fixing device for English teaching, including a column and a horizontal support arm, the column is a hollow structure, and the column is provided with a two-way screw and a transmission groove, and the two-way screw passes through The bearing is interferingly connected inside the rear end of the column, and a worm wheel is installed and fixed in the middle of the two-way screw through bolts. The teeth mesh, the front end of the transmission worm is connected with the first knob through the pin shaft, and the horizontal support arm is welded on the upper right side of the column.

Preferably, both ends of the two-way screw are connected with sliders through threads, U-shaped blocks are welded at the rear end of the sliders, and anti-slip sheets are installed and fixed on the outer sides of the two ends of the U-shaped block through screws.

Preferably, the horizontal support arm has a hollow structure, and the horizontal support arm is provided with a sliding groove, an upper rack, a lower rack and a middle gear, the sliding groove is opened at the bottom of the horizontal supporting arm, and the upper rack is nested Above the interior of the cross support arm, the lower rack is nested under the interior of the cross support arm, and the middle gear is connected to the middle of the interior of the cross support arm through bearing interference.

Preferably, the middle gear meshes with the teeth of the upper rack and the lower rack respectively.

Preferably, the size of the upper rack is the same as that of the lower rack, and a shift block is welded to the right end of the upper rack, a vertical chute is opened in the middle of the shift block, and a sliding column is nested inside the vertical chute, so The front end of the sliding column is connected with an optical shaft through a connecting rod, the optical shaft is in interference connection with the inner front wall of the horizontal support arm through a bearing, and the front end of the optical shaft is connected with a second knob through a pin shaft.

Preferably, a U-shaped frame is welded on the left side of the bottom of the lower rack, and a set screw is threaded on the upper right side of the U-shaped frame, and a fixing plate and a third knob are arranged on the set screw, and the fixed The plate rotating shaft is connected to the left end of the set screw rod, and the third knob pin is connected to the right end of the set screw rod.

Preferably, the width dimension of the U-shaped frame is the same as the width dimension of the sliding groove.

Compared with the prior art, the beneficial effect of the present invention is: the front end of the transmission worm of the present invention is connected with the first knob through the pin shaft, and the transmission worm can be easily driven to rotate through the first knob; The worm easily drives the two-way screw on the worm wheel to rotate; both ends of the two-way screw are threadedly connected with a slider, which can easily drive the U-shaped block on the slider to slide relatively through the two-way screw; the front end of the optical axis is connected with a second knob through a pin , the sliding column on the optical axis can be easily driven by the second knob to perform circular rotation; the sliding column is nested inside the vertical chute, and the sliding column can easily drive the upper rack to reciprocate left and right; the middle gear is respectively connected to the upper rack, The teeth of the lower rack are engaged, and the upper rack can easily drive the U-shaped frame on the lower rack to reciprocate left and right; the pin shaft of the third knob is connected to the right end of the set screw, and the third knob can easily drive the fixed plate to move left and right .

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the structure of the rear end of the column of the present invention;

Fig. 3 is a schematic diagram of the U-shaped block structure of the present invention;

Fig. 4 is a schematic diagram of the internal structure of the horizontal support arm of the present invention;

Fig. 5 is the structural representation of U-shaped frame of the present invention;

In the figure: 1-column; 2-horizontal support arm; 3-two-way screw; 4-transmission groove; 5-worm gear; 6-transmission worm; 7-first knob; 8-slider; 9-U-shaped block; 10 -Anti-slip sheet; 11-Sliding groove; 12-Upper rack; 13-Lower rack; 14-Middle gear; 15-Shift block; 16-Vertical chute; U-shaped frame; 20-set screw; 21-fixed plate; 22-the third knob; 23-optical axis.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

As shown in Figure 1-5, a fixing device for English teaching includes a column 1 and a horizontal support arm 2. The column 1 is a hollow structure. The column 1 is provided with a two-way screw 3 and a transmission groove 4. The two-way screw 3 passes through The bearing is interference-connected inside the rear end of the column 1, the middle of the two-way screw 3 is fixed with a worm wheel 5 through bolts, the transmission groove 4 is opened in the middle left side of the column 1, and the inside of the transmission groove 4 is connected with the transmission worm 6 through the bearing interference. The worm 6 meshes with the worm gear 5 teeth, the front end of the transmission worm 6 is connected with the first knob 7 through a pin shaft, and the cross support arm 2 is welded on the upper right side of the column 1 .

Specific usage: place the column 1 on the blackboard of the podium, then turn the first knob 7 to drive the drive worm 6 to rotate, the drive worm 6 rotates to drive the two-way screw 3 on the worm wheel 5 to rotate, and the two-way screw 3 rotates to drive the slider The U-shaped block 9 on 8 slides up and down relative to the inner wall of the column 1, and the U-shaped block 9 slides relative to the nested installation of the column 1 on the blackboard; then the English teaching equipment is placed inside the U-shaped frame 19, and then screwed The third knob 22 drives the set screw 20 to rotate, and the rotation of the set screw 20 drives the fixed plate 21 to move inward in a straight line to fix the English teaching equipment; The sliding column 17 on the shaft 23 rotates circularly, and the circular rotation of the sliding column 17 drives the upper rack 12 on the dial 15 to reciprocate to slide left and right, and the upper rack 12 slides left and right through the middle gear 14 to drive the lower rack 13 to slide left and right. , the lower rack 13 slides left and right to displace the English teaching equipment on the U-shaped frame 19.

The above are preferred embodiments of the present invention. For those of ordinary skill in the art, according to the teachings of the present invention, without departing from the principle and spirit of the present invention, the changes, modifications, Alternatives and modifications still fall within the protection scope of the present invention.

Claims (7)

1. a kind of fixation device for English teaching, including column (1) and horizontal support arm (2), it is characterised in that: the column (1) it is in hollow structure, reverse-flighted screw (3) and driving groove (4) is provided on column (1), the reverse-flighted screw (3) passes through bearing mistake It is full of and is connected to inside column (1) rear end, reverse-flighted screw (3) is intermediate is mounted with worm gear (5), the driving groove by bolt (4) it is opened among column (1) inside left, is connected with geared worm (6) inside driving groove (4) by bearing interference, it is described Geared worm (6) and worm gear (5) tooth engagement, geared worm (6) front end are connected with the first knob (7) by pin shaft, the horizontal branch Brace (2) is welded in top on the right side of column (1).

2. a kind of fixation device for English teaching according to claim 1, it is characterised in that: the reverse-flighted screw (3) both ends have been connected through a screw thread sliding block (8), and sliding block (8) rear end is welded with U-shaped piece (9), outside described U-shaped piece of (9) both ends Side is mounted with Anti-skid sheet (10) by screw.

3. a kind of fixation device for English teaching according to claim 1, it is characterised in that: the horizontal support arm (2) it is in hollow structure, is provided with gliding groove (11), upper rack (12), lower rack gear (13) and middle gear on horizontal support arm (2) (14), the gliding groove (11) is opened in horizontal support arm (2) bottom, and it is internal that the upper rack (12) is nested in horizontal support arm (2) Top, the lower rack gear (13) are nested in horizontal support arm (2) lower inside, and the middle gear (14) is connected to by bearing interference Horizontal support arm (2) bosom.

4. a kind of fixation device for English teaching according to claim 3, it is characterised in that: the middle gear (14) Respectively with upper rack (12), lower rack gear (13) tooth engagement.

5. a kind of fixation device for English teaching according to claim 3, it is characterised in that: the upper rack (12) It is identical as the size of lower rack gear (13), and upper rack (12) right end is welded with shifting block (15), is offered among the shifting block (15) Perpendicular sliding slot (16), the perpendicular sliding slot (16) are nested inside with traveller (17), and traveller (17) front end is connected with light by connecting rod Axis (23), the optical axis (23) is connect by bearing with the interior antetheca interference of horizontal support arm (2), and optical axis (23) front end passes through pin shaft It is connected with the second knob (18).

6. a kind of fixation device for English teaching according to claim 3, it is characterised in that: the lower rack gear (13) Bottom left is welded with U-shaped frame (19), and top is threaded with tightening screw rod (20), the tightening on the right side of the U-shaped frame (19) Fixed plate (21) and third knob (22) are provided on screw rod (20), fixed plate (21) shaft is connected to tightening screw rod (20) Left end, third knob (22) pin shaft are connected to tightening screw rod (20) right end.

7. a kind of fixation device for English teaching according to claim 6, it is characterised in that: the U-shaped frame (19) Width dimensions it is identical as the width dimensions of gliding groove (11).