Auxiliary teaching aid convenient to fold

Abstract

The utility model belongs to the technical field of teaching aids, and particularly relates to an auxiliary teaching aid convenient to fold, which comprises a first graduated scale and a second graduated scale, a rotating shaft is arranged at the joint of the first graduated scale and the second graduated scale, and sliding blocks are slidably connected to track grooves formed in the first graduated scale and the second graduated scale. A positioning column is fixedly connected to one side of the sliding block, a fixing component is arranged on the positioning column and comprises a fixing plate, and a rectangular hole is formed in a crank fixed to one side of the fixing plate. The receding groove is formed in the side, located on the through hole, of the fixing plate, the clamping component is arranged at the receding groove, chalks are sequentially inserted into the corresponding through holes in the using process, then the lead screw is rotated through the handle, the clamping component is made to move, the chalks are fixed and clamped, the fixing strength of the chalks can be guaranteed, and the chalk clamping effect is improved. Therefore, the problem that the chalk fixing effect of the device is not good at the present stage is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to teaching aid technical field, concretely is an auxiliary teaching aid convenient to fold. BACKGROUND

[0002] English teaching is an important link in modern basic education, needs to carry out the overall cooperation of listening, speaking, reading and writing, in the English teaching process, the English teacher will teach students the writing format of English alphabet, and often needs to draw lines on the blackboard to assist writing, needs to help auxiliary teaching aid, such as patent number CN202323171418.2 discloses a kind of auxiliary teaching aid convenient to fold, the scheme moves multiple chalks simultaneously through the chalk fixed strip of telescopic movement, in turn realizes the writing of english alphabet format, but the scheme still has certain defects and deficiencies, first, the scheme is set up chalk card hole on chalk fixed strip, chalk is directly clamped in card hole, this mode cannot guarantee the stability of chalk fixation, needs to press chalk when writing, otherwise it will appear the situation of unclear writing, but force pressing is easy to make chalk fall off, cannot guarantee the use effect, second, needs to fix scale with one hand when using, writes with the other hand, and the convenience is not good, there is certain defect and deficiency, therefore needs to be improved. SUMMARY

[0003] (I) the technical problem solved

[0004] In view of the deficiencies of prior art, the utility model provides an auxiliary teaching aid convenient to fold, by setting up the accommodation slot on the side of fixed plate in the through hole, setting up clamping component at accommodation slot, when using, chalk is inserted into corresponding through hole in turn, then handle rotates screw rod, in turn makes clamping component move, realizes the fixed clamping of chalk, can guarantee the fixing strength of chalk, will not produce the situation of falling off, solves the problem of poor chalk fixing effect of present device.

[0005] (II) technical scheme

[0006] The utility model discloses in order to realize the above-mentioned purpose specifically adopts the following technical scheme:

[0007] The utility model provides a folding auxiliary teaching aid, including first scale and second scale, the junction between first scale and second scale is provided with pivot, and the track groove of first scale and second scale is opened sliding connection has the sliding block, one side of sliding block is fixedly connected with the locating post, is provided with fixed component on the locating post, the fixed component includes fixed plate, the crank of one side of fixed plate is fixed and is opened with rectangle hole, and the rectangle hole is adapted with the locating post, and the through -hole that evenly distributes is opened to the fixed plate, the through -hole of fixed plate is inserted with chalk all, the fixed plate is located and is opened with the recess that penetrates to the outside in the through -hole side, be provided with the clamping part for clamping chalk in the recess of fixed plate.

[0008] Further, the clamping part includes a telescopic plate and an arc-shaped clamping seat integrally formed on one side of the telescopic plate, and an arc-shaped surface on one side of the arc-shaped clamping seat is adapted to the outer wall of the chalk.

[0009] Further, one side of the fixed plate is fixedly connected with two supports, a lead screw is rotatably connected between the two supports, the telescopic plate is provided with a screw hole corresponding to the lead screw, and one end of the lead screw extends to the outside of the support and is fixedly connected with a handle.

[0010] Further, a limiting rod is fixedly connected between the two supports, and the telescopic plate is provided with a limiting hole corresponding to the limiting rod.

[0011] Further, one side of the first scale is fixedly connected with a first magnetic block, and one side of the second scale is fixedly connected with a second magnetic block.

[0012] Further, the lower surface of the first scale and the lower surface of the second scale are both mounted with a suction cup, and the first scale and the second scale are fixed to a blackboard through the suction cup.

[0013] (Three) beneficial effects

[0014] Compared with the prior art, the utility model provides a folding auxiliary teaching aid, which has the following advantages

[0015] Beneficial effects:

[0016] 1. According to the utility model, the recess is arranged on one side of the fixed plate, the clamping part is arranged in the recess, the clamping part is composed of the telescopic plate and the arc-shaped clamping seat, the chalk is sequentially inserted into the through hole of the fixed plate during use, then the handle is used to rotate the lead screw, so that the telescopic plate and the arc-shaped clamping seat move, one side of the arc-shaped clamping seat is adapted to the outer wall of the chalk, and the chalk is clamped and fixed, the chalk can be positioned and fixed in this way, the chalk can be quickly installed, the fixing strength of the chalk can be effectively guaranteed, the chalk will not fall off during writing, and the use effect is guaranteed.

[0017] 2、The utility model discloses, through setting the sucking disc at the lower surface of first scale, second scale, can fix two scales on the blackboard through the sucking disc when using, in turn, it is convenient for the use of english teacher, increase its use convenience.

[0018] 3、The utility model discloses, through setting the pivot between first scale, second scale, realize the rotary connection between two scales, through setting first magnetic attraction piece on the one side of first scale, setting second magnetic attraction piece on the one side of second scale, can realize the magnetic attraction fixed between two scales after folding, convenient to carry. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structural diagram of the utility model;

[0020] Figure 2 It is the sectional view of fixed component in the utility model;

[0021] Figure 3 It is the structural diagram of clamping part in the utility model;

[0022] Figure 4 It is the bottom perspective view of the utility model.

[0023] In the drawing: 1, first scale;2, track groove;3, first magnetic attraction piece;4, sliding block;5, positioning column;6, pivot;7, second scale;8, second magnetic attraction piece;9, fixed component;901, fixed plate;902, crank;903, rectangular hole;904, support;905, screw;906, limit rod;907, clamping part;9071, telescopic plate;9072, arc clamping seat;908, give way slot;909, chalk;10, sucking disc. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] EMBODIMENT

[0026] As Figure 1 And Figure 2As shown, the utility model discloses an auxiliary teaching aid convenient to fold, which comprises a first scale 1 and a second scale 7, a connecting portion between the first scale 1 and the second scale 7 is provided with a rotating shaft 6, a sliding block 4 is slidably connected to a track groove 2 of the first scale 1 and the second scale 7, one side of the sliding block 4 is fixedly connected with a positioning column 5, the positioning column 5 is provided with a fixing component 9, the fixing component 9 comprises a fixed plate 901, a rectangular hole 903 is formed in a crank 902 fixed on one side of the fixed plate 901, the rectangular hole 903 is matched with the positioning column 5, a plurality of through holes are formed in the fixed plate 901 at equal intervals, a chalk 909 is inserted into each through hole of the fixed plate 901, and a clearance slot 908 is formed in one side of the fixed plate 901 and extends to the outside, and a clamping component 907 for clamping the chalk 909 is arranged in the clearance slot 908.

[0027] It should be noted that the first scale 1 and the second scale 7 are arranged to facilitate writing in English letter format, the rotating shaft 6 is arranged between the first scale 1 and the second scale 7 to facilitate folding of the first scale 1 and the second scale 7, the sliding block 4 is slidably connected to the track groove 2 of the first scale 1 and the second scale 7, the sliding block 4 is fixedly connected with the positioning column 5, the stable extension and contraction of the sliding block 4 and the positioning column 5 are realized, the removable fixing component 9 is arranged on the positioning column 5, the fixing component 9 is used for writing in letter format, the fixing component 9 is composed of the fixed plate 901, the crank 902 and the like, the rectangular hole 903 is formed in the crank 902, the crank 902 is inserted into the positioning column 5 through the rectangular hole 903, the detachable assembly of the fixing component 9 is realized, the through holes are formed in the fixed plate 901 at equal intervals, the chalk 909 is inserted into the through holes, the clearance slot 908 is arranged on one side of the through hole, and the clamping component 907 is arranged in the clearance slot 908, one side of the clamping component 907 abuts against the chalk 909, and the clamping and fixing of the chalk 909 are realized.

[0028] As shown in Figure 2 and Figure 3 In some embodiments, the clamping component 907 comprises a telescopic plate 9071 and an arc-shaped clamping seat 9072 integrally formed on one side of the telescopic plate 9071, and an arc-shaped surface on one side of the arc-shaped clamping seat 9072 is matched with an outer wall of the chalk 909.

[0029] It should be noted that the telescopic plate 9071 can control the extension and contraction of the arc-shaped clamping seat 9072, one side of the arc-shaped clamping seat 9072 has an arc-shaped surface matched with the outer wall of the chalk 909, and the effective clamping of the chalk 909 is realized.

[0030] As shown in Figure 2 and Figure 3As shown in the drawings, in some embodiments, one side of the fixed plate 901 is fixedly connected with two supports 904, the two supports 904 are rotatably connected with a lead screw 905, the telescopic plate 9071 is provided with a screw hole matched with the lead screw 905 at the position corresponding to the lead screw 905, and one end of the lead screw 905 extends to the outside of the support 904 and is fixedly connected with a handle.

[0031] It should be noted that by rotatably connecting the lead screw 905 between the two supports 904, the telescopic plate 9071 and the arc-shaped clamping seat 9072 can be controlled to move when the lead screw 905 rotates, one side of the arc-shaped clamping seat 9072 abuts against the chalk 909, and the chalk 909 is clamped and fixed.

[0032] As shown in the drawings, Figure 2 and Figure 3 In some embodiments, a limiting rod 906 is fixedly connected between the two supports 904, and the telescopic plate 9071 is provided with a limiting hole matched with the limiting rod 906 at the position corresponding to the limiting rod 906.

[0033] It should be noted that the limiting rod 906 can realize the telescopic limiting of the telescopic plate 9071 and realize the stable telescoping of the telescopic plate 9071.

[0034] As shown in the drawings, Figure 1 In some embodiments, a first magnetic block 3 is fixedly connected to one side of the first scale 1, and a second magnetic block 8 is fixedly connected to one side of the second scale 7.

[0035] It should be noted that the fixed member 9 can be removed from the positioning column 5 when not in use, and then the first scale 1 and the second scale 7 are rotated to realize the mutual folding of the first scale 1 and the second scale 7. After folding, the first magnetic block 3 and the second magnetic block 8 attract each other to form a whole, thereby facilitating the carrying of the device.

[0036] As shown in the drawings, Figure 1 and Figure 4 In some embodiments, a suction cup 10 is installed on the lower surface of the first scale 1 and the lower surface of the second scale 7, and the first scale 1 and the second scale 7 are fixed to the blackboard through the suction cup 10.

[0037] It should be noted that the first scale 1 and the second scale 7 are unfolded when in use, and then fixed to the blackboard through the suction cup 10, which facilitates the operation of the fixed member 9 and the writing of the English teacher. The suction cup 10 can be adsorbed on the blackboard, and its use mode is known prior art, which will not be described here.

[0038] The working principle and use steps of the utility model are as follows: when in use, the first scale 1 and the second scale 7 are rotated through the rotating shaft 6, the first scale 1 and the second scale 7 are unfolded, then the suction cup 10 is adsorbed and fixed on the blackboard (the process should ensure that the blackboard is clean), then the chalk 909 is sequentially inserted into the through hole of the fixed plate 901, after the insertion, the handle is rotated, the lead screw 905 is rotated, then the movable plate 9071 and the arc-shaped clamping seat 9072 are moved, one side of the arc-shaped clamping seat 9072 abuts against the chalk 909, the assembly and fixation of the chalk 909 are realized, then the rectangular hole 903 on the crank 902 is inserted into the positioning column 5, when in use, the English teacher presses the fixed plate 901 and moves, one end of the chalk 909 contacts the blackboard, the writing of the English letter writing format is realized, since the crank 902 is inserted into the positioning column 5, the chalk 909 can also be normally used after a certain length is consumed.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A folding aid comprising a first scale (1) and a second scale (7) characterised in that: The connecting part between the first scale (1) and the second scale (7) is provided with a rotating shaft (6), and the track groove (2) of the first scale (1) and the second scale (7) is slidably connected with a sliding block (4), one side of the sliding block (4) is fixedly connected with a positioning column (5), the positioning column (5) is provided with a fixing member (9), the fixing member (9) comprises a fixed plate (901), a rectangular hole (903) is formed in the crank (902) fixed on one side of the fixed plate (901), the rectangular hole (903) is matched with the positioning column (5), and a plurality of through holes are formed in the fixed plate (901) at equal intervals, a chalk (909) is inserted into each through hole of the fixed plate (901), and a clearance groove (908) penetrating to the outside is formed in one side of the fixed plate (901), and a clamping part (907) for clamping the chalk (909) is arranged at the clearance groove (908) of the fixed plate (901).

2. The folding aid of claim 1, wherein: The clamping part (907) comprises a telescopic plate (9071) and an arc-shaped clamping seat (9072) integrally formed on one side of the telescopic plate (9071), and the arc-shaped surface on one side of the arc-shaped clamping seat (9072) is matched with the outer wall of the chalk (909).

3. A folding aid according to claim 2, wherein: One side of the fixed plate (901) is fixedly connected with two supports (904), a lead screw (905) is rotatably connected between the two supports (904), the telescopic plate (9071) is provided with a screw hole matched with the lead screw (905) at the position corresponding to the lead screw (905), and one end of the lead screw (905) extends to the outside of the support (904) and is fixedly connected with a handle.

4. The folding aid of claim 3, wherein: The two supports (904) are fixedly connected with a limiting rod (906), and the telescopic plate (9071) is provided with a limiting hole matched with the limiting rod (906) at the position corresponding to the limiting rod (906).

5. The folding aid of claim 1, wherein: One side of the first scale (1) is fixedly connected with a first magnetic block (3), and one side of the second scale (7) is fixedly connected with a second magnetic block (8).

6. The folding aid of claim 1, wherein: The lower surface of the first scale (1) and the lower surface of the second scale (7) are both provided with a suction cup (10), and the first scale (1) and the second scale (7) are fixed on the blackboard through the suction cup (10).

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