CN210116305U

CN210116305U - English teaching is with four line check marking tools

Info

Publication number: CN210116305U
Application number: CN201920192232.XU
Authority: CN
Inventors: 孙洪磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-12
Filing date: 2019-02-12
Publication date: 2020-02-28
Anticipated expiration: 2029-02-12

Abstract

The utility model belongs to the technical field of the teaching aid technique and specifically relates to a four-line check marking tool is used in english teaching, including base, support frame and a chalk section of thick bamboo, base bottom rigid coupling has the sucking disc, is equipped with first T shape spout on the base, and the joint has first T shape slider in the first T shape spout, and L shape connecting rod upper portion rigid coupling has second T shape slider, and second T shape slider joint has support spring in the second T shape spout of support frame one side, and it has grafting to have in second T shape slider below in the second T shape spout, a chalk section of thick bamboo is total four, and every chalk section of thick bamboo four corners all articulates through the hinge has mutual articulated connecting plate, and there is the multisection telescopic link through the connecting rod rigid coupling in the support frame top. The utility model has the advantages of reasonable design, adjust two base intervals and can adjust the interval between four chalk containers, and the interval remains the same throughout between four chalk containers, adsorbs the base and fixes on the blackboard, presses the multisection telescopic link and with it about promote can draw the straight line of four parallels.

Description

English teaching is with four line check marking tools

Technical Field

The utility model belongs to the technical field of teaching aid technique and specifically relates to a four-wire check marking tool is used in english teaching.

Background

To learn english, the basic merit of writing of english letter at first will be normalized, for this reason, english mr will draw the four-line check of writing english on the blackboard, then write standard english letter in four check, generally, mr uses ruler and set-square to draw a line on the blackboard, but such method is very complicated, the teacher not only needs one hand to hold the set-square, still needs one hand to hold right the ruler, then vacates the hand and comes the setting-out, and is extremely low in efficiency, wastes valuable teaching time, and long-time drawing-out causes mr's arm tingling easily. In order to solve the problem, in the chinese utility model patent with publication number CN207916388U, a marking device for english teaching is disclosed, which not only can improve the drawing efficiency of four lines of grids, but also can ensure that the straight lines in the four lines of grids are all in a parallel state. However, in the utility model discloses in, because four chalk cover intervals are fixed for the four line check intervals that draw are fixed, the mr can't adjust four line check intervals according to actual need, and one of the important principle of adjusting four line check intervals is just guaranteeing that four straight line intervals are the same, and for this reason, the device still needs to innovate.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming above-mentioned technical shortcoming and providing a four-line check marking tool for english teaching, adjust two base intervals can adjust the interval between four chalk containers, and the interval remains the same throughout between four chalk containers, adsorb the base and fix on the blackboard, press the multisection telescopic link and with it about promote can draw four parallel straight lines.

The utility model provides a technical scheme that technical problem adopted does: a four-line-grid marking tool for English teaching comprises a base, two supporting frames and a chalk barrel, wherein the two transverse bases are fixedly connected with suckers on the left side and the right side of the rear end face of the base to adsorb and fix the base on a blackboard, a first T-shaped sliding groove is transversely arranged on the base, a first T-shaped sliding block is clamped in the first T-shaped sliding groove and can slide left and right along the first T-shaped sliding groove, an L-shaped connecting rod is fixedly connected at the front end of the first T-shaped sliding block, a second T-shaped sliding block is fixedly connected at the opposite end of the two L-shaped connecting rods, the two supporting frames are respectively provided with a second T-shaped sliding groove towards one side of the adjacent L-shaped connecting rod, the second T-shaped sliding block is clamped in the second T-shaped sliding groove and can slide back and forth along the second T-shaped sliding groove, a supporting spring is inserted below the second T-shaped sliding block in the second T-shaped sliding groove, the chalk box comprises four chalk boxes, chalks are inserted in the chalk boxes, a fastening knob is connected to one side of each chalk box through threads to fix the relative positions of the chalks and the chalk boxes, four corners of each chalk box are hinged with connecting plates through hinges, the connecting part of the front connecting plate and the rear connecting plate is hinged with the rear end face of a front supporting frame through a hinge, the connecting plate at the frontmost end is hinged with the front end face of a rear supporting frame through a hinge, when the distance between the two bases is changed, the distance between the four chalk boxes is always kept the same, the front end of the supporting frame is fixedly connected with a connecting rod, a multi-section telescopic rod is fixedly connected between the two connecting rods, the multi-section telescopic rod is pressed, the supporting spring is stretched, the supporting frame moves backwards, so that the chalks in the chalk boxes contact the surface, the distance between the chalk barrels is fixed, four straight lines drawn at the moment are kept parallel, the multi-section telescopic rods are loosened, the support frame moves forwards under the action of the support springs, the chalk is driven to be separated from the surface of the blackboard, and the multi-section telescopic rods can stretch and retract along with the adjustment of the distance between the two bases.

Furthermore, a plurality of ball grooves are formed in the rear end face of the first T-shaped sliding block, and universal balls are clamped in the ball grooves, so that the friction force between the first T-shaped sliding block and the first T-shaped sliding groove is reduced, and the multi-section telescopic rod is pushed to draw lines more smoothly.

Furthermore, a rubber holding cylinder is sleeved in the middle of the multi-section telescopic rod, so that the multi-section telescopic rod can be conveniently held.

The utility model discloses the beneficial effect who has is: the utility model has the advantages of reasonable design, adjust two base intervals and can adjust the interval between four chalk containers, and interval remains the same throughout between four chalk containers, adsorb the base and fix on the blackboard, press the multisection telescopic link and control it and promote and can accomplish the marking off, and four sharp of drawing this moment keep parallel, loosen the multisection telescopic link then the chalk is driven and the blackboard face separation, and is very convenient.

Drawings

Fig. 1 is a top view of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a side view structural section of the base and the supporting frame of the present invention.

Fig. 4 is a schematic cross-sectional view of the support frame of the present invention.

Detailed Description

The present invention will be described in detail below with reference to fig. 1 to 4.

As shown in figures 1-4, the utility model comprises a base 1, a support frame 4 and a chalk barrel 6, wherein two bases 1 are transversely arranged, the left and right sides of the rear end surface of the base 1 are fixedly connected with suckers 2 to adsorb and fix the base 1 on a blackboard, the base 1 is transversely provided with a first T-shaped chute 1-1, the first T-shaped chute 1-1 is internally connected with a first T-shaped slide block 3-1 in a clamping way, the first T-shaped slide block 3-1 can slide left and right along the first T-shaped chute 1-1, the front end of the first T-shaped slide block 3-1 is fixedly connected with an L-shaped connecting rod 3, one end of the two L-shaped connecting rods 3 is fixedly connected with a second T-shaped slide block 3-2, the two support frames 4 are totally arranged, the two support frames are both provided with a second T-shaped chute 4-1 towards one side of the adjacent L-shaped connecting rod 3, the second T-shaped slide block 3-2 is clamped in, the second T-shaped sliding block 3-2 can slide back and forth along the second T-shaped sliding groove 4-1, the supporting springs 5 are inserted below the second T-shaped sliding block 3-2 in the second T-shaped sliding groove 4-1, the number of the chalk containers 6 is four, the chalks 7 are inserted in the chalk containers 6, one side of each chalk container 6 is in threaded connection with a fastening knob 8 to fix the relative positions of the chalks 7 and the chalk containers 6, four corners of each chalk container 6 are hinged with connecting plates 10 through hinges 9, the connecting parts of the front and rear connecting plates 10 are also hinged with each other through the hinges 9, the foremost connecting plate 10 is hinged with the rear end face of the front supporting frame 4 through the hinges 9, the rearmost connecting plate 10 is hinged with the front end face of the rear supporting frame 4 through the hinges 9, when the distance between the two bases 1 is changed, the distance between the four chalk containers 6 is also changed, the front end of the support frame 4 is fixedly connected with a connecting rod 11, a plurality of telescopic rods 12 are fixedly connected between the two connecting rods 11, the telescopic rods 12 are pressed, the support spring 5 is stretched, the position of the support frame 4 moves backwards, so that chalks 7 in the chalk barrel 6 are in contact with the blackboard surface, at the moment, the chalk scribing can be completed by pushing the telescopic rods 12, as the two bases 1 are fixed on the blackboard surface by utilizing the suction disc 2 to adsorb, the distance between the chalk barrels 6 is fixed, four straight lines drawn at the moment are kept parallel, the telescopic rods 12 are loosened, the support frame 4 moves forwards under the action of the support spring 5, the chalks 7 are driven to be separated from the blackboard surface, and the telescopic rods 12 can stretch along.

In this embodiment, the rear end surface of the first T-shaped sliding block 3-1 is provided with a plurality of ball grooves 3-1-1, and universal balls 13 are clamped in the ball grooves 3-1-1, so as to reduce the friction between the first T-shaped sliding block 3-1 and the first T-shaped sliding groove 1-1, and to make the scribing of the multi-section telescopic rod 12 smoother.

In this embodiment, a rubber holding tube 14 is sleeved in the middle of the multi-section telescopic rod 12 so as to facilitate holding the multi-section telescopic rod 12.

Use the utility model discloses the time, at first adjustment volume base 1 interval to the interval between four chalk containers 6 of drive adjustment is until suitable, utilizes sucking disc 2 to adsorb two bases 1 and fixes on the blackboard face, inserts chalk 7 in chalk container 6 and fixed through fastening knob 8, presses multisection telescopic link 12 and with it about promote can draw out four parallel straight lines, loosen multisection telescopic link 12 then chalk 7 is driven and blackboard face separation, very convenient.

Claims

1. The utility model provides an english teaching is with four line check marking tools, includes base, support frame and chalk container, its characterized in that: the two chalk holders are inserted with chalks, one side of each chalk holder is connected with a fastening knob in a threaded manner, four corners of each chalk holder are hinged with connecting plates through hinges, the connecting positions of the front connecting plate and the rear connecting plate are hinged with each other through hinges, the connecting plate at the front end and the rear connecting plate are hinged with the rear end face of the supporting frame through hinges, the connecting plate at the front end is hinged with the rear end face of the supporting frame through hinges, the connecting plate at the rearmost end is hinged with the front end face of the rear supporting frame through a hinge, the front end of the supporting frame is fixedly connected with a connecting rod, and a plurality of sections of telescopic rods are fixedly connected between the two connecting rods.

2. The tool for marking lines on four lines for English teaching of claim 1, wherein: the rear end face of the first T-shaped sliding block is provided with a plurality of ball grooves, and the ball grooves are internally clamped with universal balls.

3. The tool for marking lines on four lines for English teaching of claim 1, wherein: the middle of the multi-section telescopic rod is sleeved with a rubber holding cylinder.