CN219583825U

CN219583825U - Drawing tool and mathematical education auxiliary equipment

Info

Publication number: CN219583825U
Application number: CN202222834981.2U
Authority: CN
Inventors: 李超
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-08-25
Anticipated expiration: 2032-10-27

Abstract

The utility model relates to the technical field of teaching drawing tools, in particular to a drawing tool and a mathematical teaching auxiliary device, which comprise: the positioning device comprises a support rod, a positioning rod and a fixed block, wherein a positioning groove is formed in the lower end of the support rod, a positioning strip and a rotating shaft are arranged in the positioning groove, a positioning gear is connected to the upper end of the positioning rod, a fixed plate and a clamping plate are arranged in the fixed block, and the clamping plate is connected with a telescopic spring and a pulling plate; the beneficial effects are as follows: when the chalk clamping device is used, the pulling plate is pulled outwards to drive the clamping plate to extrude the telescopic spring, meanwhile, the sliding block slides in the sliding groove, so that the chalk is more stable in stretching, then the chalk is placed between the clamping plate and the fixing plate, the length of the chalk in use is adjusted, the external force applied to the pulling plate is removed, at the moment, the clamping plate and the fixing plate clamp and fix the chalk rapidly due to the elastic action of the telescopic spring, the chalk is prevented from sliding and falling off in the use process through the rubber anti-slip pad, and the chalk is protected from being pinched off.

Description

Drawing tool and mathematical education auxiliary equipment

Technical Field

The utility model relates to the technical field of teaching drawing tools, in particular to a drawing tool and a mathematical teaching auxiliary device.

Background

Mathematics is a subject for researching concepts such as quantity, structure, change, space and information, plays an irreplaceable role in human history development and social life, and is an essential basic tool for learning and researching modern science and technology. In the mathematical education process, various drawings and displays are often required to ensure the teaching effect.

Chinese patent CN 214189093U is with auxiliary device that draws for mathematical education has solved current compasses among the prior art and need insert chalk or painting brush in the use, but current clamping part centre gripping effect is not good, and chalk or painting brush drop easily in the use, and it is comparatively troublesome to use, comparatively extravagant teaching time's problem. The utility model provides a mathematical education is with drawing auxiliary device, includes compasses neck and compasses neck top fixed connection's compasses head, and the inside locating lever and the drawing pole of rotating the connection that pass through the pivot of compasses neck, and the one end that the pivot was kept away from to the locating lever is connected with fixture through adapting unit, and the one end that the pivot was kept away from to the drawing pole is connected with the locating pin through adapting unit, and adapting unit contains the montant, and the one end center department fixedly connected with screw rod three of montant. The utility model has the advantages of clamping and fastening, convenient operation, difficult falling in the using process, convenient use and teaching time saving.

However, when the chalk is clamped and fixed, the screw rod needs to be screwed, and the screw rod is screwed in the connecting plate, so that the fixing plate and the vertical rod are close to each other, and the chalk or the painting brush is clamped.

Disclosure of Invention

The utility model aims to provide a drawing tool and a mathematical education auxiliary device, which are used for solving the problems that when the device is used for clamping and fixing chalks, a screw rod is required to be screwed, and the screw rod is screwed in a connecting plate to rotate so that a fixing plate and a vertical rod are close to each other, thereby clamping the chalks or the paintbrushes, and meanwhile, the chalks are easy to pinch off when the force is too large during clamping.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a drawing tool, the drawing tool comprising:

the lower end of the supporting rod is provided with a positioning groove, and a positioning strip is fixedly connected with the middle of the inner wall of the upper end of the positioning groove;

the positioning rod is connected with the lower end of the supporting rod, the upper end of the positioning rod is connected with a positioning gear, and the positioning gear is connected with a rotating shaft;

the fixed block is located on the side wall of the locating rod, a fixed plate and a clamping plate are arranged in the fixed block, and the clamping plate is connected with a telescopic spring and a pulling plate.

Preferably, the positioning gear is sleeved on the outer wall of the rotating shaft, and two ends of the rotating shaft are rotatably connected with the inner wall of the positioning groove.

Preferably, the fixing block is provided with a fixing slot, and the inner wall of the fixing slot close to one end of the positioning rod is fixedly connected with the fixing plate.

Preferably, the inner side walls of the fixing plate and the clamping plate are fixedly connected with rubber anti-slip pads.

Preferably, the left and right inner walls of the fixed slot hole are provided with sliding grooves, and the sliding grooves are connected with sliding blocks in a sliding manner.

Preferably, the sliding blocks are fixedly connected with the left side wall and the right side wall of the clamping plate respectively.

Preferably, two telescopic springs are arranged, one ends of the two telescopic springs are fixedly connected with the outer side wall of the clamping plate, and the other ends of the two telescopic springs are fixedly connected with the inner wall of the end, far away from the positioning rod, of the fixing slot hole.

Preferably, the pulling plate is L-shaped, the pulling plate is positioned between the two telescopic springs, and the pulling plate is fixedly connected with the side wall of the clamping plate.

A mathematical education auxiliary equipment comprises the drawing tool.

Compared with the prior art, the utility model has the beneficial effects that:

when using drawing tool, at first outside pulling arm-tie drives splint extrusion extension spring, simultaneously because the slider slides in the spout for it is more stable when stretching, then place the chalk between splint and fixed plate, and adjust the length when using, remove the external force of applying the arm-tie afterwards, because the elastic action of extension spring self this moment, make splint and fixed plate carry out the quick clamp to the chalk and fix, and prevent the chalk slip through rubber slipmat in the use and drop, and protect the chalk, in addition through the rotation between locating strip and the positioning gear, in order to better distance when adjusting the drawing.

Drawings

FIG. 1 is a schematic diagram of the semi-section structure of the integral fixing block of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 3 is a schematic view of the semi-sectional structure of the positioning rod of the frame of the present utility model.

In the figure: 1. a support rod; 2. a positioning rod; 3. a fixed block; 4. a fixing plate; 5. a rubber anti-slip pad; 6. a clamping plate; 7. pulling a plate; 8. a telescopic spring; 9. a chute; 10. a slide block; 11. a fixed slot; 12. a positioning strip; 13. a positioning groove; 14. positioning gears; 15. a rotating shaft.

Detailed Description

In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

In the description of the present utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Referring to fig. 1 to 3, the present utility model provides a technical solution: a drawing tool, the drawing tool comprising:

the support rod 1, the constant head tank 13 has been seted up to the lower extreme of support rod 1, fixedly connected with location strip 12 in the middle of the upper end inner wall of constant head tank 13, and positioning gear 14 cup joints on the outer wall of pivot 15, and the both ends of pivot 15 are connected with the inner wall rotation of constant head tank 13.

The locating rod 2 is connected with the lower extreme of bracing piece 1, and the upper end of locating rod 2 is connected with locating gear 14, and locating gear 14 is connected with pivot 15.

The fixed block 3 is located on the lateral wall of the locating rod 2, the fixed plate 4 and the clamping plate 6 are arranged in the fixed block 3, the clamping plate 6 is connected with the telescopic springs 8 and the pulling plate 7, the fixed block 3 is provided with a fixed slotted hole 11, the inner wall of the fixed slotted hole 11, which is close to one end of the locating rod 2, is fixedly connected with the fixed plate 4, the rubber anti-slip pad 5 is fixedly connected to the inner side walls of the fixed plate 4 and the clamping plate 6, the sliding grooves 9 are formed in the left and right inner walls of the fixed slotted hole 11, the sliding grooves 9 are slidably connected with the sliding blocks 10, the sliding blocks 10 are respectively fixedly connected with the left and right lateral walls of the clamping plate 6, the telescopic springs 8 are provided with two telescopic springs, one ends of the two telescopic springs 8 are fixedly connected with the outer lateral walls of the clamping plate 6, the other ends of the two telescopic springs 8 are fixedly connected with the inner wall of the fixed slotted hole 11, the pulling plate 7 is in an L shape, the pulling plate 7 is located between the two telescopic springs 8, and the pulling plate 7 is fixedly connected with the lateral walls of the clamping plate 6.

A mathematical education auxiliary equipment comprises the drawing tool.

During actual use, when the drawing tool is used, the pulling plate 7 is pulled outwards firstly to drive the clamping plate 6 to extrude the telescopic spring 8, meanwhile, the sliding block 10 slides in the sliding groove 9, so that the drawing tool is more stable in drawing, then chalk is placed between the clamping plate 6 and the fixed plate 4, the length in use is adjusted, the external force applied to the pulling plate 7 is removed, at the moment, the clamping plate 6 and the fixed plate 4 clamp and fix the chalk rapidly due to the elastic action of the telescopic spring 8, the chalk is prevented from sliding and falling off in the use process through the rubber anti-slip pad 5, the chalk is protected, pinch-off is prevented, and in addition, the distance in drawing is adjusted better through rotation between the positioning bar 12 and the positioning gear 14.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A drawing tool, characterized in that: the drawing tool comprises:

the support rod (1), the lower extreme of support rod (1) has offered the constant head tank (13), fixedly connected with location strip (12) in the middle of the upper end inner wall of constant head tank (13);

the positioning rod (2) is connected with the lower end of the supporting rod (1), the upper end of the positioning rod (2) is connected with a positioning gear (14), and the positioning gear (14) is connected with a rotating shaft (15); a kind of electronic device with high-pressure air-conditioning system

The fixed block (3) is positioned on the side wall of the positioning rod (2), a fixed plate (4) and a clamping plate (6) are arranged in the fixed block (3), and the clamping plate (6) is connected with a telescopic spring (8) and a pulling plate (7).

2. A drawing tool according to claim 1, wherein: the positioning gear (14) is sleeved on the outer wall of the rotating shaft (15), and two ends of the rotating shaft (15) are rotatably connected with the inner wall of the positioning groove (13).

3. A drawing tool according to claim 1, wherein: the fixing block (3) is provided with a fixing slot hole (11), and the inner wall of the fixing slot hole (11) close to one end of the positioning rod (2) is fixedly connected with the fixing plate (4).

4. A drawing tool according to claim 1, wherein: the inner side walls of the fixing plate (4) and the clamping plate (6) are fixedly connected with rubber anti-slip pads (5).

5. A drawing tool according to claim 3, wherein: the left and right inner walls of the fixed slotted hole (11) are respectively provided with a sliding groove (9), and the sliding grooves (9) are connected with sliding blocks (10) in a sliding manner.

6. A drawing tool according to claim 5, wherein: the sliding blocks (10) are fixedly connected with the left side wall and the right side wall of the clamping plate (6) respectively.

7. A drawing tool according to claim 3, wherein: the telescopic springs (8) are arranged in two, one ends of the telescopic springs (8) are fixedly connected with the outer side wall of the clamping plate (6), and the other ends of the telescopic springs (8) are fixedly connected with the inner wall of the fixing slot hole (11) far away from one end of the positioning rod (2).

8. A drawing tool according to claim 7, wherein: the pull plate (7) is L-shaped, the pull plate (7) is positioned between the two telescopic springs (8), and the pull plate (7) is fixedly connected with the side wall of the clamping plate (6).

9. A mathematical education auxiliary equipment, its characterized in that: drawing tool comprising any of the above claims 1-8.