CN105711300A

CN105711300A - English scriber

Info

Publication number: CN105711300A
Application number: CN201610042752.3A
Authority: CN
Inventors: 孙硕
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-22
Filing date: 2016-01-22
Publication date: 2016-06-29

Abstract

The invention discloses an English scriber which is used for scribing four lines and three grids on a blackboard rapidly and standardly. The English scriber is characterized in that the scriber comprises two positioning devices, two sliding rods, eight nuts and a scribing device; the two positioning devices are arranged symmetrically, the two sliding rods are arranged between the two positioning devices in parallel, and corresponding expansion heads are clamped by the eight nuts with every two nuts as a group, so that the sliding rods and the positioning devices are fixedly connected; the scribing device comprises a body and four chalk clamps; the two sliding rods penetrate through two sliding holes correspondingly to be connected with the body of the scribing device; and the four chalk clamps are arranged in four vertical mounting holes of the body correspondingly. According to the English scriber, four lines and three grids for English teaching can be scribed conveniently, rapidly and standardly, chalk is adopted by the scriber so that a user can basically use up a whole stick of chalk or utilize abandoned chalk heads in ordinary teaching again, and therefore the utilization rate of chalk is increased, and resources are saved.

Description

A kind of scriber for English drawing

Technical field

The present invention relates to teaching equipment technical field, particularly a kind of scriber for English drawing.

Background technology

At present, in the English teaching starting stage, teach 26 English letter capital and small letters and when writing of 48 International Phonetic Symbols, need on blackboard, draw four line three lattice, what teacher used is all common ruler or the teaching aid such as set square by mathematics section, the spacing of the straight line grid of living is not of uniform size, and the width of letter is also uncontrollable, very inconvenient, and waste time and energy.

Summary of the invention

The technical problem to be solved is to provide a kind of scriber for English drawing, it is possible to fast and easy specification mark four line three lattice used that teach English.

In order to realize solving the purpose of above-mentioned technical problem, present invention employs following technical scheme:

A kind of scriber for English drawing, marks four line three lattice for Express specification on blackboard, it is characterized in that: include two positioners, two slide bars, eight nuts and chalker；

Described positioner includes sucker, connector and supporting seat；The two ends of described connector are equipped with expansion-head, and described two expansion-head are provided with the through hole being parallel to each other；The lower section of described expansion-head is additionally provided with screwed hole；Described supporting seat is arranged over the first thread segment that the corresponding threaded holes with expansion-head closes, and the first thread segment of supporting seat is arranged in the screwed hole of expansion-head；Described sucker is arranged on below supporting seat, is used for adsorbing blackboard；

Described slide bar two ends are equipped with the second thread segment；

Said two positioner is symmetrical arranged；Described two slide bars are set in parallel between two positioners, and second thread segment at each slide bar two ends is arranged in the through hole of expansion-head corresponding thereto；

One group between two of described eight nuts, are separately positioned on second thread segment at two slide bar two ends, corresponding expansion-head are clamped, and make slide bar and positioner fix and are connected；

Described chalker includes body and four chalk holders；Described body is provided with handle；The side of described body is provided with two slide openings being parallel to each other；Described two slide bars are each passed through two slide openings makes two slide bars be connected with the body of chalker；Described chalk holder includes housing, holder, adjusting rod, spring and chalk connector；Described housing is for setting female cylindrical section, and this cylindrical section lower end is provided with external screw thread；Described holder includes connecting portion and clamping part；Described connecting portion is provided with female thread, and connecting portion connects housing by the external screw thread of cylindrical section lower end；Described clamping part is the circular platform type component that through hole was made and be provided with to rubber；Described clamping part is for clamping the chalk through through hole, and this clamping part is contraction state not by external force time, can open when being subject to the downward stress of chalk and makes chalk lean out and hold chalk tightly；Described adjusting rod is be provided with the externally threaded cylinder matched with housing internal threads；Described spring one end connects adjusting rod lower end, and the other end connects chalk connector；Described chalk connector lower end is provided with the groove matched with chalk upper end, is provided with elastic ring in described groove, and elastic ring is used for fit clamping chalk；The adjusting rod being connected to spring and chalk connector is arranged in housing；Being additionally provided with four vertical installing holes that are equidistant and that be parallel to each other on described body, vertical installing hole is provided with female thread；The shell of described chalk holder is provided with the external screw thread that the female thread with vertical installing hole matches；Described four chalk holders are separately positioned in four vertical installing holes.

Concrete: the connecting portion of described housing, adjusting rod and holder is metal or plastic material.

Using method: during use, first assembles two positioners, two slide bars, eight nuts and chalker according to technical scheme；Then, take off the adjusting rod of each chalk holder, chalk is stuck in the groove of the chalk connector being connected with adjusting rod, the adjusting rod being connected to spring and chalk connector is arranged in housing, rotation adjusting lever, makes chalk lower end lean out 5-10mm from the holder of housing lower end, now, owing to the clamping part of holder is that rubber is made, therefore clamping part will hold chalk tightly；Then the sucker on positioner is utilized to be fixed on blackboard by this teaching aid, mobile chalker, then can directly mark four line three lattice used that teach English, and, owing to chalk connector end is provided with spring, even if the situation such as user is firmly uneven or blackboard is slightly uneven, the elastic force of this spring also is able to ensure that chalk uniformly exerts a force on blackboard, make its straight uniform marked attractive in appearance, and be not susceptible to the situations such as chalk fracture；After using a period of time, it is only necessary to rotation adjusting lever again, namely adjustable leans out the length of the chalk of holder；And, owing to this teaching aid makes user need not hold chalk, therefore utilize this teaching aid use chalk can allow the user to basic complete root chalk or utilize discarded chalk end of giving lessons at ordinary times do again with, thus improve the utilization rate of chalk, economize on resources.

These technical schemes, the technical scheme including the technical scheme improved and improvement further can also combine mutually or combine, thus reaching superior technique effect.

By adopting technique scheme, the present invention has following beneficial effect:

A kind of scriber for English drawing of the present invention, can fast and easy specification mark four line three lattice used that teach English, and, utilize this scriber use chalk can allow the user to basic complete root chalk or utilize discarded chalk end of giving lessons at ordinary times do again with, thus improve the utilization rate of chalk, economize on resources.

Accompanying drawing explanation

Fig. 1 is the overall structure schematic diagram of invention.

Fig. 2 is the structural representation of positioner.

Fig. 3 is the structural representation of connector.

Fig. 4 is the structural representation of supporting seat.

Fig. 5 is the structural representation of chalker.

Fig. 6 is the structural representation of chalk holder.

Fig. 7 is the structural representation of holder.

Fig. 8 is the structural representation of housing.

Fig. 9 is the structural representation that adjusting rod passes through spring connection chalk connector.

Figure 10 is the structural representation of chalk connector.

In figure: 1-positioner, 2-nut, 3-slide bar, 4-chalker, 5-connector, 6-supporting seat, 7-sucker, 8-expansion-head, 9-through hole, 10-the first thread segment, 11-body, 12-chalk holder, 13-slide opening, 14-adjusting rod, 15-housing, 16-holder, 17-connecting portion, 18-clamping part, 19-spring, 20-chalk connector, 21-groove.

Detailed description of the invention

Below in conjunction with drawings and Examples, this patent is explained further explanation.But the protection domain of this patent is not limited to specific embodiment.

Embodiment 1

As shown in drawings, a kind of scriber for English drawing of this patent, marks four line three lattice for Express specification on blackboard, it is characterized in that: include two positioners, 3, eight nuts 2 of 1, two slide bars and chalker 4.

Positioner 1 includes sucker 7, connector 5 and supporting seat 6；The two ends of connector 5 are equipped with expansion-head 8, and two expansion-head 8 are provided with the through hole 9 being parallel to each other；The lower section of expansion-head 8 is additionally provided with screwed hole；Supporting seat 6 is arranged over the first thread segment 10 that the corresponding threaded holes with expansion-head 8 closes, and the first thread segment 10 of supporting seat 6 is arranged in the screwed hole of expansion-head 8；Sucker 7 is arranged on below supporting seat 6, is used for adsorbing blackboard.

Slide bar 3 two ends are equipped with the second thread segment；Two positioners 1 are symmetrical arranged；Two slide bars 3 are set in parallel between two positioners 1, and second thread segment at each slide bar 3 two ends is arranged in the through hole 9 of expansion-head 8 corresponding thereto；One group between two of eight nuts 2, are separately positioned on second thread segment at two slide bar 3 two ends, corresponding expansion-head 8 are clamped, and make that slide bar 3 is fixing with positioner 1 to be connected.

Chalker 4 includes body 11 and four chalk holders 12；Body 11 is provided with handle；The side of body 11 is provided with two slide openings 13 being parallel to each other；Two slide bars 3 are each passed through two slide openings 13 makes two slide bars 3 be connected with the body 11 of chalker 4；Chalk holder 12 includes housing 15, holder 16, adjusting rod 14, spring 19 and chalk connector 20；Housing 15 is for setting female cylindrical section, and this cylindrical section lower end is provided with external screw thread；Holder 16 includes connecting portion 17 and clamping part 18；Connecting portion 17 is provided with female thread, and connecting portion 17 connects housing 15 by the external screw thread of cylindrical section lower end；Clamping part 18 is made for rubber and is provided with the circular platform type component of through hole 9；Clamping part 18 is for clamping the chalk through through hole 9, and this clamping part 18 is contraction state not by external force time, can open when being subject to the downward stress of chalk and makes chalk lean out and hold chalk tightly；Adjusting rod 14 is be provided with the externally threaded cylinder matched with housing 15 female thread；Spring 19 one end connects adjusting rod 14 lower end, and the other end connects chalk connector 20；Chalk connector 20 lower end is provided with the groove 21 matched with chalk upper end, is provided with elastic ring in groove 21, and elastic ring is used for fit 21 clamping chalk；The adjusting rod 14 being connected to spring 19 and chalk connector 20 is arranged in housing 15；Being additionally provided with four vertical installing holes that are equidistant and that be parallel to each other on body 11, vertical installing hole is provided with female thread；The shell of chalk holder 12 is provided with the external screw thread that the female thread with vertical installing hole matches；Four chalk holders 12 are separately positioned in four vertical installing holes.

Wherein, the connecting portion 17 of housing 15, adjusting rod 14 and holder 16 is metal or plastic material.

During use, first according to technical scheme, two positioners, 3, eight nuts 2 of 1, two slide bars and chalker 4 are assembled；Then, take off the adjusting rod 14 of each chalk holder 12, chalk is stuck in the groove 21 of the chalk connector 20 being connected with adjusting rod 14, the adjusting rod 14 being connected to spring 19 and chalk connector 20 is arranged in housing 15, rotation adjusting lever 14, makes chalk lower end lean out 5-10mm from the holder 16 of housing 15 lower end, now, owing to the clamping part 18 of holder 16 is made for rubber, therefore clamping part 18 will hold chalk tightly；Then the sucker 7 on positioner 1 is utilized to be fixed on blackboard by this teaching aid, mobile chalker 4, then can directly mark four line three lattice used that teach English, and, owing to chalk connector 20 end is provided with spring 19, even if the situation such as user is firmly uneven or blackboard is slightly uneven, the elastic force of this spring 19 also is able to ensure that chalk uniformly exerts a force on blackboard, make its straight uniform marked attractive in appearance, and be not susceptible to the situations such as chalk fracture；After using a period of time, it is only necessary to rotation adjusting lever 14 again, namely adjustable leans out the length of the chalk of holder 16；And, owing to this teaching aid makes user need not hold chalk, therefore utilize this teaching aid use chalk can allow the user to basic complete root chalk or utilize discarded chalk end of giving lessons at ordinary times do again with, thus improve the utilization rate of chalk, economize on resources.

Claims

1. a scriber for English drawing, marks four line three lattice for Express specification on blackboard, it is characterized in that: include two positioners, two slide bars, eight nuts and chalker；

Described slide bar two ends are equipped with the second thread segment；

2. scriber for English drawing according to claim 1, is characterized in that: the connecting portion of described housing, adjusting rod and holder is metal or plastic material.