CN213593990U

CN213593990U - Be applied to instrument of primary school mathematics drawing point

Info

Publication number: CN213593990U
Application number: CN202022477761.XU
Authority: CN
Inventors: 刘明
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-02
Anticipated expiration: 2030-10-30

Abstract

The application discloses be applied to instrument of primary school mathematics drawing point, including main part, sleeve, slide, circular sucking disc, extension board, fixed cover, dead lever and arc cardboard, fixedly connected with sleeve in the main part, telescopic bottom terminal surface fixedly connected with circular sucking disc, telescopic a side end face is equipped with the opening, slide and telescopic inner wall sliding connection, the bottom and the sealed piece fixed connection of slide, sealed piece and sleeve sliding connection, a side end face fixedly connected with push rod mouth of slide. This application is through the scale of the scale mark cooperation extension board both sides in the main part and the cooperation between first slider and the horizontal spout, and convenient to use person control point and the distance between the point are convenient for evenly draw a little, again through the dead lever, the spacing groove, the cooperation between arc cardboard, slide bar and the second spring, are convenient for carry out the chucking to the chalk, again through the cooperation between second slider and the first spring, avoid the user to exert oneself too big chalk that leads to damage.

Description

Be applied to instrument of primary school mathematics drawing point

Technical Field

The application relates to a tool for primary school mathematics teaching, in particular to a tool applied to primary school mathematics drawing points.

Background

Primary school mathematics teaches children's knowledge about numbers, four arithmetic operations, graphic and length calculation formulas and unit conversion of a series of knowledge through teaching materials, and lays a good mathematical foundation for junior high school and daily life calculation.

Present primary school's mathematics can draw some on the blackboard often in teaching process, but does not have the appurtenance who uses to drawing some at present for the teacher draws some comparatively loaded down with trivial details when teaching, wastes time and energy, and work efficiency is low. Therefore, a tool applied to primary school mathematics drawing points is provided aiming at the problems.

Disclosure of Invention

A tool applied to primary school mathematics drawing points comprises a main body, a sleeve, a sliding plate, a circular sucker, a supporting plate, a fixing sleeve, a fixing rod and an arc-shaped clamping plate, wherein the sleeve is fixedly connected onto the main body, the circular sucker is fixedly connected onto the bottom end face of the sleeve, an opening is formed in one side end face of the sleeve, the sliding plate is in sliding connection with the inner wall of the sleeve, the bottom end of the sliding plate is fixedly connected with a sealing block, the sealing block is in sliding connection with the sleeve, a push rod is fixedly connected onto one side end face of the sliding plate, the other end of the push rod penetrates through the opening, a fixing groove is formed in the main body, transverse sliding grooves are formed in the two side end faces of the fixing groove, the supporting plate is in sliding connection with the top end face of the main body, the fixing sleeve is fixedly connected onto the, the utility model discloses a fixed pole, including first slider and horizontal spout sliding connection, sliding connection has the dead lever on the fixed cover, the dead lever runs through fixed cover, the equal rigid coupling in both sides outer wall of dead lever has the second slider, second slider and vertical spout sliding connection, fixed cover has seted up vertical spout inside, the bottom rigid coupling of vertical spout has first spring, the top of first spring and the bottom rigid coupling of second slider, the bottom of dead lever is equipped with the circular slot, the spacing groove has been seted up on the inner wall of circular slot, spacing groove and slide bar sliding connection, the one end and the arc cardboard fixed connection of slide bar, the cover has the second spring on the slide bar, the one end of second spring and the circular slot inner wall rigid coupling of dead lever bottom, the other end and the arc cardboard fixed connection of second spring.

Furthermore, the number of the sleeves is four, the four sleeves are distributed on the main body in a rectangular array mode, the sleeves penetrate through the main body, and vent holes are formed in the bottom ends of the sleeves.

Further, the sliding plate is T-shaped, and the length of the sliding plate is matched with that of the opening.

Furthermore, the side of main part is equipped with the scale mark, the equal fixedly connected with scale in both sides bottom of extension board, the scale is laminated with the scale mark in the main part.

Further, the fixed cover runs through the extension board, the bottom of fixed cover extends to the main part below.

Furthermore, the limiting grooves are three and distributed on the inner wall of the circular groove at the bottom end of the fixing rod in an annular array mode, and the arc-shaped clamping plates, the sliding rods and the second springs are all three and correspond to the limiting grooves one to one.

The beneficial effect of this application is: the application provides a fixed instrument of being applied to primary school mathematics drawing point convenient to.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic overall perspective view of an embodiment of the present application;

FIG. 2 is a schematic view of the internal structure of a sleeve according to an embodiment of the present application;

FIG. 3 is a schematic side view of a body according to an embodiment of the present application;

fig. 4 is a schematic bottom view of a fixing rod according to an embodiment of the present application.

In the figure: 1. the main part, 2, the sleeve, 3, the slide, 4, sealed piece, 5, circular sucking disc, 6, the push rod, 7, the opening, 8, the extension board, 9, the scale, 10, fixed cover, 11, horizontal spout, 12, first slider, 13, the dead lever, 14, vertical spout, 15, the second slider, 16, first spring, 17, the spacing groove, 18, arc cardboard, 19, the slide bar, 20, the second spring.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-4, a tool for primary school mathematics point drawing comprises a main body 1, a sleeve 2, a sliding plate 3, a circular sucker 5, a support plate 8, a fixing sleeve 10, a fixing rod 13 and an arc-shaped clamping plate 18, wherein the main body 1 is fixedly connected with the sleeve 2, the bottom end surface of the sleeve 2 is fixedly connected with the circular sucker 5, one side end surface of the sleeve 2 is provided with an opening 7, the sliding plate 3 is slidably connected with the inner wall of the sleeve 2, the bottom end of the sliding plate 3 is fixedly connected with a sealing block 4, the sealing block 4 is slidably connected with the sleeve 2, one side end surface of the sliding plate 3 is fixedly connected with a push rod 6, the other end of the push rod 6 penetrates through the opening 7, the main body 1 is provided with the fixing groove, the two side end surfaces of the fixing groove are respectively provided with a transverse sliding chute 11, the top end surface of the main body 1, the fixing sleeve 10 is connected with a fixing groove on a support plate 8 in a sliding manner, the end faces of two sides of the fixing sleeve 10 are fixedly connected with first sliders 12, the first sliders 12 are connected with a transverse sliding groove 11 in a sliding manner, a fixing rod 13 is connected with the fixing sleeve 10 in a sliding manner, the fixing rod 13 penetrates through the fixing sleeve 10, the outer walls of two sides of the fixing rod 13 are fixedly connected with second sliders 15, the second sliders 15 are connected with vertical sliding grooves 14 in a sliding manner, vertical sliding grooves 14 are formed in the fixing sleeve 10, the bottom end of each vertical sliding groove 14 is fixedly connected with a first spring 16, the top end of each first spring 16 is fixedly connected with the bottom end of each second slider 15, a circular groove is formed in the bottom end of each fixing rod 13, a limiting groove 17 is formed in the inner wall of the circular groove, the limiting groove 17 is connected with a sliding rod 19 in a sliding manner, one end of the sliding, one end of the second spring 20 is fixedly connected with the inner wall of the circular groove at the bottom end of the fixing rod 13, and the other end of the second spring 20 is fixedly connected with the arc-shaped clamping plate 18.

The number of the sleeves 2 is four, the four sleeves 2 are distributed on the main body 1 in a rectangular array mode, the sleeves 2 penetrate through the main body 1, and vent holes are formed in the bottom end of each sleeve 2 to facilitate fixing; the sliding plate 3 is T-shaped, and the length of the sliding plate 3 is matched with that of the opening 7, so that the sealing is facilitated; scale marks are arranged at the side end of the main body 1, the bottom ends of the two sides of the support plate 8 are fixedly connected with the scale ruler 9, and the scale ruler 9 is attached to the scale marks on the main body 1, so that points can be drawn uniformly; the fixed sleeve 10 penetrates through the support plate 8, and the bottom end of the fixed sleeve 10 extends to the lower part of the main body 1, so that points can be drawn conveniently; the number of the limiting grooves 17 is three, the three limiting grooves 17 are distributed on the inner wall of the circular groove at the bottom end of the fixing rod 13 in an annular array mode, and the number of the arc-shaped clamping plates 18, the number of the sliding rods 19 and the number of the second springs 20 are all three and are in one-to-one correspondence with the limiting grooves 17, so that chalk fixing is facilitated.

When the chalk box is used, electrical components appearing in the chalk box are externally connected with a power supply and a control switch when the chalk box is used, the bottom end of the main body 1 is placed corresponding to a blackboard, the circular sucker 5 at the bottom end of the sleeve 2 is attached to the blackboard, the sliding push rod 6 and the sliding plate 3 fixedly connected with the push rod 6 move in the inner cavity of the sleeve 2 and simultaneously drive the sealing block 4 to move, air between the circular sucker 5 and the blackboard is sucked into the inner cavity of the sleeve 2 through the vent hole at the bottom end of the sleeve 2 while the sealing block 4 moves, so that the circular sucker 5 is convenient to be adsorbed on the blackboard, the main body 1 is convenient to be fixed on the blackboard, when points are required to be hit uniformly, chalk is plugged into the three arc-shaped clamping plates 18, the arc-shaped clamping plates 18 are pushed by elastic potential energy of the compressed second spring 20 to clamp the chalk tightly, and the sliding, the fixed rod 13 is pressed to enable the chalk to draw points on the blackboard, the second sliding block 15 extrudes the first spring 16 when the fixed rod is pressed, the situation that the chalk is damaged due to the fact that a user exerts too much force is avoided, and the uniform points can be drawn conveniently by the user through the matching between the scales 9 on the two sides of the support plate 8 and the scale marks on the main body 1.

The application has the advantages that:

1. the chalk clamping device has the advantages that through the matching of the scale marks on the main body, the scales on the two sides of the support plate, the first sliding block and the transverse sliding groove, a user can conveniently control the distance between points, so that the points can be conveniently and uniformly drawn, through the matching of the fixed rod, the limiting groove, the arc-shaped clamping plate, the sliding rod and the second spring, the chalk can be conveniently clamped, and through the matching of the second sliding block and the first spring, the chalk damage caused by the fact that the user exerts too much force is avoided;

2. this application is through the cooperation between sleeve, slide, sealed piece, circular sucking disc and the push rod for the air suction between circular sucking disc and the blackboard through the air vent of sleeve bottom when sealed piece removes to the sleeve inner chamber, makes circular sucking disc be convenient for adsorb on the blackboard, and then the main part of being convenient for is fixed on the blackboard, thereby is convenient for be the user and draws a little.

It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a be applied to instrument of primary school mathematics plot which characterized in that: comprises a main body (1), a sleeve (2), a sliding plate (3), a circular sucker (5), a support plate (8), a fixed sleeve (10), a fixed rod (13) and an arc-shaped clamping plate (18), wherein the sleeve (2) is fixedly connected to the main body (1), the circular sucker (5) is fixedly connected to the bottom end face of the sleeve (2), an opening (7) is formed in one side end face of the sleeve (2), the sliding plate (3) is in sliding connection with the inner wall of the sleeve (2), the bottom end of the sliding plate (3) is fixedly connected with a sealing block (4), the sealing block (4) is in sliding connection with the sleeve (2), a push rod (6) is fixedly connected to one side end face of the sliding plate (3), the other end of the push rod (6) penetrates through the opening (7), a fixed groove is formed in the main body (1), and transverse sliding grooves (11), the top end face of the main body (1) is connected with a support plate (8) in a sliding manner, a fixed sleeve (10) is fixedly connected onto the support plate (8), the fixed sleeve (10) is connected with a fixed groove on the support plate (8) in a sliding manner, the end faces of two sides of the fixed sleeve (10) are fixedly connected with first sliders (12), the first sliders (12) are connected with transverse sliding grooves (11) in a sliding manner, fixed rods (13) are connected onto the fixed sleeve (10) in a sliding manner, the fixed rods (13) penetrate through the fixed sleeve (10), the outer walls of two sides of the fixed rods (13) are fixedly connected with second sliders (15), the second sliders (15) are connected with vertical sliding grooves (14) in a sliding manner, vertical sliding grooves (14) are formed inside the fixed sleeve (10), the bottom ends of the vertical sliding grooves (14) are fixedly connected with first springs (16), and the top ends of the first springs (16), the bottom of dead lever (13) is equipped with the circular slot, spacing groove (17) have been seted up on the inner wall of circular slot, spacing groove (17) and slide bar (19) sliding connection, the one end and the arc cardboard (18) fixed connection of slide bar (19), the cover has second spring (20) on slide bar (19), the one end of second spring (20) and the circular slot inner wall rigid coupling of dead lever (13) bottom, the other end and the arc cardboard (18) fixed connection of second spring (20).

2. The tool for drawing points in mathematics in primary schools according to claim 1, wherein: sleeve (2) have four, four sleeve (2) are the form distribution of rectangle array on main part (1), sleeve (2) run through main part (1), the air vent has been seted up to the bottom of sleeve (2).

3. The tool for drawing points in mathematics in primary schools according to claim 1, wherein: the sliding plate (3) is T-shaped, and the length of the sliding plate (3) is adapted to that of the opening (7).

4. The tool for drawing points in mathematics in primary schools according to claim 1, wherein: the side of main part (1) is equipped with the scale mark, the equal fixedly connected with scale (9) in both sides bottom of extension board (8), scale (9) and the scale mark laminating on main part (1).

5. The tool for drawing points in mathematics in primary schools according to claim 1, wherein: the fixing sleeve (10) penetrates through the support plate (8), and the bottom end of the fixing sleeve (10) extends to the lower portion of the main body (1).

6. The tool for drawing points in mathematics in primary schools according to claim 1, wherein: the limiting grooves (17) are three, the limiting grooves (17) are distributed on the inner wall of the circular groove at the bottom end of the fixing rod (13) in an annular array mode, and the arc-shaped clamping plates (18), the sliding rods (19) and the second springs (20) are all three and correspond to the limiting grooves (17) one to one.