CN2636345Y - Teaching stick with chalk clamp - Google Patents

Abstract

The utility model discloses a pointer with a chalk clamp, which is characterized in that: a flex pointer 2 and a chalk sleeve clamp 3 are embedded on a coupling frame 1; a fastening ringer 4 that can slide along the column surface of the chalk sleeve clamp 3 is positioned on the chalk sleeve clamp 3; the fastening ringer 4 integrates in a whole with a pocket hook 5; the external side of the opening at the top of the chalk sleeve clamp 3 is take a convex shape. The utility model has the advantages that: 1. it can ensure the cleanness of teacher's hand and cloth; 2. convenient application and portability; 3. low cost and simple fabrication.

Description

A kind of religion rod with the chalk folder

The utility model relates to a kind of teaching aid.

Classroom instruction now generally is that the naked hand of teacher is grabbed chalk and write on blackboard, often makes to be stained with dust on one's body with on the clothes, and is both untidy, also unhygienic.

The purpose of this utility model is to provide a kind of combination religion rod with chalk clamp, can address the above problem.

Solution of the present utility model is: the flexible religion of setting-in rod, chalk clamp on a stock, the chalk clamp top ports outside is convex, be provided with one along the cylinder of the chalk clamp lock ring collar slidably on chalk clamp, the lock ring collar and pocket hook are one.

Owing to taked technique scheme, the teacher will take out from pocket as the combination religion rod of size as the pen when classroom instruction, go up chalk with the chalk clamp folder on the combination religion rod, just both can hand the cover hack lever has write on blackboard, avoided hand directly to contact chalk, write the religion rod indication teaching that to stretch behind the word, killed two birds with one stone.This shows that the major advantage of this combination religion rod is: can guarantee the clean and tidy health of teacher's hand and clothes first; Second easy to carry, easy to use; Three with low cost, make simple.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the utility model outward appearance floor map;

Fig. 2 is the utility model schematic perspective view;

Fig. 3 pushes away the volume rendering synoptic diagram of stretching device for band.

As Fig. 1, Fig. 2 and shown in Figure 3, the utility model outward appearance is as a pen, end at stock 1 is embedded with a telescopic religion rod 2, and the time spent does not shrink, and the time spent stretching is opened, the other end is provided with a chalk clamp 3, but each chalk of cartridge clip along the cylinder of the chalk clamp 3 lock ring collar 4 slidably, is provided with pocket hook 5 in the outer setting one of chalk clamp 3 on the lock ring collar 4, the chalk clamp 3 top ports outsides is convex, slippage in the time of can preventing that the lock ring collar 4 is pushed into top end.When using chalk clamp 3 folder chalks, earlier the lock ring collar 4 is pushed into the middle and lower part of chalk clamp 3, behind the chalk, again the lock ring collar 4 is pushed into the top of chalk clamp 3 on the folder, play the effect of lock ring chalk.

As shown in Figure 2, chalk clamp 3 of the present utility model can be made of the blade 6 of outer tension force more than three, and the outside 14 on blade 6 tops is convex, also is slippage when preventing that the lock ring collar 4 is pushed into top end.In the bottom 8 of chalk clamp 3 spring 7 is set, the one end is against or is welded on the bottom 8 of chalk clamp 3, and the other end is welded on the pad 9, and the length of spring 7 is no longer than the length of chalk clamp.When using chalk clamp 3, earlier with the middle and lower part of the lock ring collar 4 push-and-pulls to chalk clamp 3, again it is pushed into top lock ring chalk after waiting to press from both sides chalk, weak point has been write in lifting one's head of chalk, the lock ring collar 4 is moved to the middle part direction slightly, and the clamping force on chalk clamp 3 tops weakens slightly, and the elastic force of spring 7 ejects chalk, the length of stretching out when chalk reaches the length that needs, and the lock ring collar 4 is pulled to again the top lock ring again and lives chalk and do not cause it to be ejected fully.

As shown in Figure 3, the bottom of the utility model chalk clamp 3 is provided with a chalk and pushes away and stretch device 10, pushes away to stretch device 10 and form by pushing away to stretch pad 11 and push away boom 12, and pad 11 is in the inside of chalk clamp 3, push away the outside of boom 12, on the shaft of chalk clamp 3, offer porose poor 13 at chalk clamp 3.The afterbody of chalk clamp 3 folded chalks is against on the pad 11, appears longlyer the time when the needs chalk, can promote boom 12 chalk is released from chalk clamp 3.

Claims (3)

1, a kind of religion rod with the chalk folder, it is characterized in that: be embedded with flexible religion rod (2), chalk clamp (3) on the stock (1), on chalk clamp (3), be provided with one along the cylinder of chalk clamp (3) the lock ring collar (4) slidably, the lock ring collar (4) is an one with pocket hook (5), and the top ports outside of chalk clamp (3) is convex.

2, a kind of religion rod according to claim 1 with the chalk folder, it is characterized in that: chalk clamp (3) is made of the blade (6) of outer tension force more than three, the outside (14) on blade (6) top is convex, bottom (8) in chalk clamp (3) is provided with a spring (7), the one end is against on the bottom (8), the other end is welded on the pad (9), and the length of spring (7) is no longer than the length of chalk clamp (3).

3, a kind of religion rod according to claim 1 with the chalk folder, it is characterized in that: a chalk is set in the bottom of chalk clamp (3) pushes away and stretch device (10), stretch pushing away of device (10) and stretch and be provided with one on the pad (11) and push away boom (12) pushing away, push away boom (12) in the outside of chalk clamp (3), on the shaft of chalk clamp (3), offer porose poor (13).

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