CN214240206U

CN214240206U - Compasses convenient to measure for education and teaching

Info

Publication number: CN214240206U
Application number: CN202023131383.6U
Authority: CN
Inventors: 周丛; 魏昆昆
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-09-21
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses a compasses for education and teaching convenient to measure, including the compasses seat, the front side swing joint of compasses seat has the set screw, the bottom fixedly connected with pilot pin of compasses seat, the left and right sides of compasses seat all swing joint has the mobile jib, the front side of compasses seat is equipped with the slip ring, the slip ring has all run through the gag lever post near left and right sides department, the front end cover of gag lever post is equipped with the spacing ring, the rear end fixed connection of spacing ring is on the preceding lateral wall of mobile jib, through the mutual cooperation between each parts, makes can accomplish drawing the concentric circle of each size through manual pressing, and the drawing mode is different from traditional compasses, but better simple better ingenious, has avoided the problem that the pilot pin drops off in the drawing, and the speed of drawing the circle through the pressing mode is better swift, and the lead head is greater than the round around the center of pilot pin when once pressing, the drawn round lines are clearer, the operation is simple and convenient, and the installation is convenient.

Description

Compasses convenient to measure for education and teaching

Technical Field

The utility model relates to a teaching education technical field especially relates to an education and teaching is with compasses of being convenient for to measure.

Background

The lower part of the movable compass leg of general compasses is equipped with a fixed drawing foot, and the problem that the stitch dropped easily goes out when drawing the circle, and the difficult operation of one hand relatively to once can only draw a circle, and can not directly draw concentric circles, and need artifical manual rotation many times just can make the circle lines of drawing more clear when drawing, the longer relatively loaded down with trivial details of process, it is not very convenient to use.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a compasses convenient for measurement for education and teaching.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

the compasses comprise a compass seat, wherein the front side of the compass seat is movably connected with a fixed screw, the bottom of the compass seat is fixedly connected with a positioning needle, the left side and the right side of the compass seat are both movably connected with a main rod, the front side of the compass seat is provided with a sliding ring, the sliding ring is close to the left end and the right end and is penetrated with a limit rod, the front end of the limit rod is sleeved with a limit ring, the rear end of the limit ring is fixedly connected with the front side wall of the main rod, the end of the main rod far away from the compass seat is provided with a blind hole, the inner cavity of the blind hole is inserted with a first telescopic rod, one end of the first telescopic rod far away from the main rod is fixedly connected with a drawing rod, one end of the drawing rod far away from the first telescopic rod is provided with a through hole, two inner cavities of the through holes are penetrated with a threaded rod, the top, the threaded rod is close to bottom department cover and is equipped with first spring, the bottom fixedly connected with limiting plate of threaded rod, the lead head of bottom fixedly connected with of limiting plate, the top fixedly connected with second telescopic link of compasses seat, the outside edge cover of second telescopic link is equipped with the second spring, the top of second spring is equipped with presses the post, press the bottom department set up threaded hole of post, the inner chamber and the fixedly connected with thread piece of screw hole are run through on the top of second telescopic link, press the top fixedly connected with press the cap of post.

Furthermore, the cross section of slip ring is the arc setting, the arc setting opening of slip ring is down.

Furthermore, the top of pressing the cap is equipped with the slipmat, just the pilot pin is with two the bottom of lead is most advanced setting.

Furthermore, the outer edge of the limiting rod is provided with a thread near the front end, and the thread is matched with the thread in the inner cavity of the limiting ring.

Furthermore, the inner cavity of the blind hole and the outer side edge of the first telescopic rod are both provided with anti-skid layers.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. through mutually supporting between each part for can accomplish the concentric circles of drawing each size through manual pressing, the drawing mode is inequality with traditional compasses, but better simple better ingenious, the problem that the pilot pin drops in drawing has been avoided, and the speed of drawing the circle through the pressing mode is better swift, the lead is greater than the round around the central number of revolutions of pilot pin when once pressing, the circle lines of drawing are more clear, and easy operation is convenient, and simple to operate.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a front view of the present embodiment;

fig. 2 is a front view of the present embodiment.

In the figure: 1. a compass base; 2. fixing screws; 3. a positioning pin; 4. a lead head; 5. a limiting plate; 6. a first spring; 7. a threaded rod; 8. a threaded collar; 9. a drawing rod; 10. a first telescopic rod; 11. a main rod; 12. pressing the column; 13. pressing the cap; 14. a thread block; 15. a second telescopic rod; 16. a second spring; 17. a slip ring; 18. a limiting rod; 19. a limit ring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 2, a compass convenient for measurement for education and teaching comprises a compass seat 1, a fixing screw 2 movably connected to the front side of the compass seat 1, a positioning pin 3 fixedly connected to the bottom end of the compass seat 1, a main rod 11 movably connected to the left and right sides of the compass seat 1, a sliding ring 17 disposed on the front side of the compass seat 1, the sliding ring 17 having an arc cross section, the sliding ring 17 having an arc opening facing downward for adjusting the drawing size of a circle, a limiting rod 18 penetrating through the sliding ring 17 near the left and right ends, a thread disposed on the outer edge of the limiting rod 18 near the front end and matching with the thread of the inner cavity of the limiting ring 19 for limiting, a limiting ring 19 sleeved on the front end of the limiting rod 18, the rear end of the limiting ring 19 fixedly connected to the front side wall of the main rod 11, a blind hole disposed on the end of the main rod 11 far from the compass seat 1, the inner cavity of the blind hole and the outer side edge of the first telescopic rod 10 are both provided with anti-slip layers, so that the blind hole and the outer side edge of the first telescopic rod 10 can draw circles with different diameters, the inner cavity of the blind hole is spliced with the first telescopic rod 10, one end of the first telescopic rod 10, which is far away from the main rod 11, is fixedly connected with a drawing rod 9, one end of the drawing rod 9, which is far away from the first telescopic rod 10, is provided with a through hole, two through holes are respectively penetrated through the inner cavities of the through holes, a threaded lantern ring 8 is sleeved at the top end of the threaded rod 7, a first spring 6 is sleeved at the position, which is close to the bottom end, of the threaded rod 7, a limiting plate 5 is fixedly connected at the bottom end of the limiting plate 5, a lead head 4 is fixedly connected at the bottom end of the compasses seat 1, a second telescopic rod 15 is fixedly connected at the top end of the compasses seat 1, a second spring 16 is sleeved at the outer side edge of the second telescopic rod 15, a pressing column 12 is provided with a threaded hole, the top of second telescopic link 15 runs through the inner chamber and the fixedly connected with screw thread piece 14 of screw hole, presses the top fixedly connected with of post 12 to press cap 13, and the top of pressing cap 13 is equipped with the slipmat, and the bottom of pilot pin 3 and two plumbous heads 4 is most advanced setting, plays fixed and drawing effect.

The working principle is as follows: when the original shape needs to be drawn, the threaded rod 7 is inserted into the perforated inner cavity, the length extending out of the bottom end of the threaded rod 7 is adjusted by rotating the threaded sleeve ring 8, so that a lead head 4 is shorter than a positioning needle 3 when drawing is performed, drawing cannot be performed, the drawing rods 9 on two sides are lifted to reach the diameter size of a circle to be drawn, the bottom end of the positioning needle 3 is placed at the center of the circle center, the pressing cap 13 is manually pressed, the thread block 14 rotates inside the pressing cap 13 by pressing the pressing cap 13, the bottom compass base 1 is driven to rotate by rotation of the thread block 14, the main rod 11 which is movably connected with the compass base in the left and right directions is driven to rotate by rotation of the compass base 1, the main rod 11 rotates to drive the first telescopic rod 10 and the drawing rods 9 to rotate in the same direction, the threaded rods 7 on two sides are driven by rotation of the drawing rods 9 to rotate in a circular shape by taking the positioning needle 3 as the, make lead 4 tightly laminate each other with the paper in rotatory through the effect of first spring 6 to can be after drawing the circle, through adjusting mobile jib 11, make can draw the concentric circles again, size adjustment fit position can, convenient and fast, and efficient.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides an educational teaching is with compasses of being convenient for to measure, includes compasses seat (1), its characterized in that: the compasses seat comprises a compasses seat (1), wherein a fixing screw (2) is movably connected to the front side of the compasses seat (1), a positioning needle (3) is fixedly connected to the bottom end of the compasses seat (1), a main rod (11) is movably connected to the left side and the right side of the compasses seat (1), a sliding ring (17) is arranged on the front side of the compasses seat (1), a limiting rod (18) penetrates through the position of the sliding ring (17) close to the left side and the right side, a limiting ring (19) is sleeved at the front end of the limiting rod (18), the rear end of the limiting ring (19) is fixedly connected to the front side wall of the main rod (11), a blind hole is formed in one end of the main rod (11) far away from the compasses seat (1), a first telescopic rod (10) is inserted into the inner cavity of the blind hole, a drawing rod (9) is fixedly connected to one end of the first telescopic rod (10) far away from the main rod (11), a through hole is formed in one end of the drawing rod (9) far away from the first telescopic rod (10), threaded rods (7) penetrate through the inner cavities of the two through holes, a threaded lantern ring (8) is sleeved at the top end of each threaded rod (7), a first spring (6) is sleeved at the position, close to the bottom end, of the threaded rod (7), a limiting plate (5) is fixedly connected to the bottom end of the threaded rod (7), the bottom of the limiting plate (5) is fixedly connected with a lead head (4), the top end of the compass seat (1) is fixedly connected with a second telescopic rod (15), the outer edge of the second telescopic rod (15) is sleeved with a second spring (16), a pressing column (12) is arranged at the top of the second spring (16), a threaded hole is formed at the bottom end of the pressing column (12), the top end of the second telescopic rod (15) penetrates through an inner cavity of the threaded hole and is fixedly connected with a threaded block (14), and the top end of the pressing column (12) is fixedly connected with a pressing cap (13).

2. The compasses of claim 1 for educational teaching convenient to measure, wherein: the cross section of slip ring (17) is the arc setting, the arc setting opening of slip ring (17) is down.

3. The compasses of claim 1 for educational teaching convenient to measure, wherein: the top of the pressing cap (13) is provided with an anti-slip pad, and the bottom ends of the positioning pins (3) and the lead heads (4) are both arranged at the tip ends.

4. The compasses of claim 1 for educational teaching convenient to measure, wherein: the outer edge of the limiting rod (18) is provided with a thread near the front end, and the thread is matched with the thread in the inner cavity of the limiting ring (19).

5. The compasses of claim 1 for educational teaching convenient to measure, wherein: and the inner cavity of the blind hole and the outer side edge of the first telescopic rod (10) are both provided with anti-skid layers.