CN211195615U - Improved mathematics multipurpose ruler - Google Patents

Abstract

The utility model discloses a belong to teaching aid technical field, specifically be an improved generation mathematics multipurpose ruler, including front bezel, slider, chassis, horizontal rod and handheld frame, the top sliding connection of front bezel the slider, the bottom welding of front bezel the chassis, the bottom swing joint of chassis the handheld frame, the back lateral wall of front bezel has seted up the back groove, the bottom of front bezel has seted up the kerve, the inner chamber bottom and the bottom of back groove are pegged graft and are had the axostylus axostyle, this kind of improved generation mathematics multipurpose ruler sets up the spacing frame that has the support at the top of ruler, and after cooperation slider and chalk are connected, can slide the slider with the help of the gyro wheel, make the slider carry the chalk and directly draw in the reservation region, avoid handheld chalk, the line of drawing is stable, and can confirm with the help of the chassis that the fixed position after and be connected with the bottom of ruler, cooperation vertical rod and horizontal rod extend, after the hand-held frame is combined, the holding mode of the ruler can be changed, and the ruler is labor-saving and high in stability.

Description

Improved mathematics multipurpose ruler

Technical Field

The utility model relates to a teaching aid technical field specifically is a follow-on mathematics multi-purpose chi.

Background

The teaching aid is a general term of various appliances used for enabling students to visually and vividly understand teaching contents and appliances used by teachers during teaching. The teaching aid is called for short. The teaching aid can improve the learning interest of students, enrich the perceptual knowledge, help to form clear concepts and develop the observation ability and thinking ability of the students.

The ruler belongs to a classification of teaching aids, has accurate straight edges, is used for measuring length and drawing, has strong popularity, and is widely applied to subjects of mathematics, measurement, engineering and the like.

When the existing ruler is used in mathematical teaching, when the straight line is drawn, one ruler needs to be folded and tightly attached to a blackboard, the chalk is taken by the other hand to draw a line according to the straight line on the top of the ruler, in the matching operation, the stability is poor, the defect that lines are not smooth in the chalk drawing process is easy to occur, and in the use of the straight ruler, the blackboard surface is tightly attached to the back of the ruler by hands as a main mode, the fatigue feeling is strong, and the use flexibility is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a follow-on mathematics multi-purpose chi, in order to solve the current ruler that proposes in the above-mentioned background art and in the use of mathematical education, when drawing in the face of the straight line, need only receive and hug closely the blackboard, the chalk of taking by one hand in addition carries out the setting-out according to the top straight line of ruler, in this cooperation operation, stability is relatively poor, the drawback that chalk marking process lines is not smooth and easy easily appears, and in the use to the ruler, all hug closely the blackboard face as the leading mode behind the hand support ruler, the fatigue is strong, reduce the problem of the flexibility of using.

In order to achieve the above object, the utility model provides a following technical scheme: an improved mathematics multipurpose ruler comprises a front plate, a sliding block, a bottom frame, a transverse stick and a handheld frame, wherein the top of the front plate is connected with the sliding block in a sliding mode, the bottom of the front plate is welded with the bottom frame, the bottom of the bottom frame is movably connected with the handheld frame, the rear side wall of the front plate is provided with a rear groove, the bottom of the front plate is provided with a bottom groove, the bottom and the bottom of an inner cavity of the rear groove are spliced with a shaft rod, the outer circumferential wall of the shaft rod is sleeved with a roller, the top of the front plate is connected with a support in an integrated forming mode, the top of the support is connected with a limiting frame in an integrated forming mode, the bottom of the sliding block is provided with a sliding block groove, the bottom of the sliding block groove is connected with the top of the front plate in a buckling mode, the rear side wall of the inner cavity of the sliding block is in contact with, the top integrated into one piece of chassis is connected with the cardboard, the top of cardboard with the kerve is pegged graft, the preceding lateral wall contact of front bezel has the bail, the bail runs through the front bezel with the cardboard, the bottom threaded connection of chassis has perpendicular rod, the bottom threaded connection of erecting the rod has the connecting rod, the bottom of connecting rod bonds handheld frame.

Preferably, the front side wall of the front plate is printed with a dial and Arabic numerals.

Preferably, the number of the rollers is ten, and the ten rollers are uniformly arranged on the rear side wall of the inner cavity of the rear groove.

Preferably, chalk is inserted into the bottom of the clamping ring, and the bottom of the elastic rubber clamp is elastically connected with the circumferential outer wall of the chalk.

Preferably, the bottom of the underframe is provided with an underframe groove, and the top of the vertical stick is bonded with a main ejector rod matched with the underframe groove.

Preferably, the bottom of the vertical stick is provided with a vertical stick groove, and the top of the horizontal stick is bonded with an auxiliary ejector rod matched with the vertical stick groove.

Preferably, the circumferential outer wall of the handheld frame is sleeved with a rubber sleeve, and the circumferential outer wall of the rubber sleeve is integrally connected with resistance-increasing threads.

Compared with the prior art, the beneficial effects of the utility model are that: this kind of follow-on mathematics multipurpose ruler, through the combination application of accessory, top at the ruler sets up the spacing frame that has the support, cooperation slider is connected the back with the chalk, can slide the slider with the help of the gyro wheel, make the slider carry the chalk and directly draw in the reservation region, avoid handheld chalk, the lines of drawing are smooth and easy stable, and can confirm with the help of the chassis and be connected with the bottom of ruler behind the fixed position, the cooperation is erected rod and horizontal rod and is extended, can change the mode of holding to the ruler behind the combination handheld frame, it is strong to laborsaving stability simultaneously.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the slider of the present invention;

fig. 3 is an exploded view of the hand-held frame of the present invention.

In the figure: 100 front plate, 110 graduation meter, 120 back groove, 130 roller, 140 support, 150 spacing frame, 200 slide block, 210 clasp, 300 bottom frame, 310 clamping plate, 320 staple, 330 vertical stick, 340 horizontal stick, 400 hand-held frame, 410 connecting rod, 420 rubber sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides an improved mathematics multipurpose ruler, which can increase the stability of line drawing and facilitate labor-saving operation through the combined application of accessories, please refer to fig. 1-3, comprising a front plate 100, a sliding block 200, a bottom frame 300, a cross rod 340 and a hand-held frame 400;

referring to fig. 1 again, the front side wall of the front plate 100 has a scale 110, specifically, the rear side wall of the front plate 100 has a rear groove 120, the bottom of the front plate 100 has a bottom groove, the bottom and the bottom of the inner cavity of the rear groove 120 are inserted with a shaft rod, the circumferential outer wall of the shaft rod is sleeved with a roller 130, the top of the front plate 100 is integrally connected with a bracket 140, the top of the bracket 140 is integrally connected with a limit frame 150, and the front side wall of the front plate 100 is printed with the scale 110 and arabic numerals;

referring to fig. 2 again, the bottom of the slider 200 is slidably connected to the top of the front plate 100, specifically, the top of the front plate 100 is slidably connected to the slider 200, the bottom of the slider 200 is provided with a slider groove, the bottom of the slider groove is connected to the top of the front plate 100 by a snap fit, the rear side wall of the inner cavity of the slider 200 is in contact with the circumferential outer wall of the roller 130, the bottom of the slider 200 is bonded with a snap ring 210, and the bottom of the snap ring 210 is bonded with an elastic rubber clip;

referring to fig. 1-3 again, the top of the bottom frame 300 is slidably connected to the bottom of the front plate 100, specifically, the bottom of the front plate 100 is welded to the bottom of the bottom frame 300, the top of the bottom frame 300 is integrally connected to a clamping plate 310, the top of the clamping plate 310 is inserted into a bottom groove, the front side wall of the front plate 100 is contacted with a clamp 320, the clamp 320 penetrates through the front plate 100 and the clamping plate 310, and the bottom of the bottom frame 300 is connected with a vertical stick 330 through a thread;

referring to fig. 3 again, the top of the handheld frame 400 is fixedly connected to the bottom of the bottom frame 300, specifically, the bottom of the bottom frame 300 is movably connected to the handheld frame 400, the bottom of the vertical rod 330 is connected to the connecting rod 410 through a thread, and the bottom of the connecting rod 410 is adhered to the handheld frame 400;

when the ruler is used specifically, firstly, the scale 110 and Arabic numerals are printed on the front plate 100, so that scale reference is facilitated, the handheld frame 400, the transverse stick 340 and the vertical stick 330 are combined in advance, the top of the vertical stick 330 is connected with the bottom of the bottom frame 300, the bottom frame 300 is combined in a bottom groove through the clamping plate 310, the position of the bottom frame 300 at the bottom of the front plate 100 is adjusted according to the strength of the taking stability, personal habits and gravity points, the handheld rod 400 is taken after the position is determined and matched with the clamping nail 320 for fixing, so that the back of the front plate 100 is leaned against the blackboard, at the moment, the sliding block 200 is pushed and moved through the roller 130 to carry chalk to slide in a reserved space between the support 140 and the limiting frame 150, smooth lines are left, the fixing process of the ruler is labor-saving and effective, and the drawing process of the lines is smooth.

Referring to fig. 2 again, in order to facilitate the sliding of the sliding block 200 and increase the smoothness of the sliding, specifically, the number of the rollers 130 is ten, and the ten rollers 130 are uniformly arranged on the rear sidewall of the inner cavity of the rear groove 120.

Referring to fig. 2 again, in order to fix the chalk, specifically, the chalk is inserted into the bottom of the holding ring 210, and the bottom of the elastic rubber clip is elastically connected to the outer wall of the circumference of the chalk.

Referring to fig. 3 again, for the convenience of assembly, specifically, a chassis groove is formed at the bottom of the chassis 300, a main ejector rod matched with the chassis groove is bonded to the top of the vertical stick 330, a vertical stick groove is formed at the bottom of the vertical stick 330, and an auxiliary ejector rod matched with the vertical stick groove is bonded to the top of the horizontal stick 340.

Referring to fig. 3 again, in order to increase the grasping stability of the handheld frame 400 and prevent sliding, specifically, the circumferential outer wall of the handheld frame 400 is sleeved with the rubber sleeve 420, and the circumferential outer wall of the rubber sleeve 420 is integrally formed and connected with the resistance-increasing thread.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the description of such combinations is not exhaustive in the present specification only for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (7)

1. The utility model provides a multi-purpose chi of follow-on mathematics which characterized in that: the sliding block type hand-held rack comprises a front plate (100), a sliding block (200), a bottom frame (300), a transverse rod (340) and a hand-held rack (400), wherein the top of the front plate (100) is connected with the sliding block (200) in a sliding manner, the bottom of the front plate (100) is welded with the bottom frame (300), the bottom of the bottom frame (300) is movably connected with the hand-held rack (400), the rear side wall of the front plate (100) is provided with a rear groove (120), the bottom of the front plate (100) is provided with a bottom groove, the bottom and the bottom of an inner cavity of the rear groove (120) are inserted with a shaft rod, the circumferential outer wall of the shaft rod is sleeved with a roller (130), the top of the front plate (100) is integrally connected with a support (140), the top of the support (140) is integrally connected with a limiting frame (150), the bottom of the sliding block (200) is provided with a sliding block, the utility model discloses a portable handheld roller, including slider (200), inner chamber rear side wall of slider (200) with the circumference outer wall contact of gyro wheel (130), the bottom of slider (200) bonds and has snap ring (210), the bottom of snap ring (210) bonds the elastic rubber clamp, the top integrated into one piece of chassis (300) is connected with cardboard (310), the top of cardboard (310) with the kerve is pegged graft, the preceding lateral wall contact of front bezel (100) has bail (320), bail (320) runs through front bezel (100) with cardboard (310), the bottom threaded connection of chassis (300) has perpendicular rod (330), the bottom threaded connection of erecting rod (330) has connecting rod (410), the bottom of connecting rod (410) bonds handheld frame (400).

2. An improved math multipurpose rule according to claim 1, wherein: the front side wall of the front plate (100) is printed with a dial gauge (110) and Arabic numerals.

3. An improved math multipurpose rule according to claim 1, wherein: the number of the rollers (130) is ten, and the ten rollers (130) are uniformly arranged on the rear side wall of the inner cavity of the rear groove (120).

4. An improved math multipurpose rule according to claim 1, wherein: the bottom of the clamping ring (210) is inserted with chalk, and the bottom of the elastic rubber clip is elastically connected with the circumferential outer wall of the chalk.

5. An improved math multipurpose rule according to claim 1, wherein: the bottom of the bottom frame (300) is provided with a bottom frame groove, and the top of the vertical stick (330) is bonded with a main ejector rod matched with the bottom frame groove.

6. An improved math multipurpose rule according to claim 1, wherein: the bottom of the vertical stick (330) is provided with a vertical stick groove, and the top of the horizontal stick (340) is bonded with an auxiliary ejector rod matched with the vertical stick groove.

7. An improved math multipurpose rule according to claim 1, wherein: the circumference outer wall of handheld frame (400) has cup jointed rubber sleeve (420), the circumference outer wall integrated into one piece of rubber sleeve (420) is connected with and increases the screw thread that hinders.

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