CN211808718U

CN211808718U - Coordinatometer for mathematical statistics and analysis

Info

Publication number: CN211808718U
Application number: CN202020365115.1U
Authority: CN
Inventors: 江喜林
Original assignee: Hubei Normal University
Current assignee: Hubei Normal University
Priority date: 2020-03-21
Filing date: 2020-03-21
Publication date: 2020-10-30
Anticipated expiration: 2030-03-21

Abstract

The utility model discloses a coordinatometer for mathematical statistics analysis, comprising a base plate, the bottom plate welding has left mounting panel, the bottom plate welding has right mounting panel, the welding has a plurality of slide rails, every between left side mounting panel and the right mounting panel equal slip has cup jointed first slider, every on the slide rail the sliding tray has all been seted up on the first slider, every equal sliding connection has the third slider, every in the sliding tray the common welding of third slider has the slip chi, the welding has fixed chi between the first slider, the welding has a plurality of drawing fixing device on the mounting panel of a left side, every equal slip has cup jointed the second slider on the slide rail, every drawing fixing device has all been welded to one side that the second slider is close, is located the welding has the connecting rod between two drawing fixing device on the mounting panel of a left side. The utility model discloses can convenient and fast draw the histogram of standard, and can be applicable to and draw the histogram on the drawing of equidimension not.

Description

Coordinatometer for mathematical statistics and analysis

Technical Field

The utility model relates to a mathematical statistics analysis technical field especially relates to a coordinatometer for mathematical statistics analysis.

Background

In teaching, mathematical statistics and analysis are important professional basic courses, and in the mathematical statistics and analysis, drawing a histogram, which is also called a quality distribution graph, is a statistical report graph, wherein a series of vertical stripes or line segments with unequal heights represent the data distribution, the histogram is an accurate graph representation of numerical data distribution, the horizontal axis generally represents the data type, and the vertical axis represents the distribution.

In the prior art, in general, when the histogram is drawn by hand, the distances among all longitudinal lines of the drawn histogram are difficult to ensure to be equal, the distribution is uniform, time and labor are wasted, and the drawn histogram does not meet the specification, so that a coordinatometer is needed to accurately draw the histogram.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the coordinatometer for mathematical statistics analysis who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a coordinatometer for mathematical statistics and analysis comprises a bottom plate, wherein a left mounting plate is welded on the bottom plate, a right mounting plate is welded on the bottom plate, a plurality of slide rails are welded between the left mounting plate and the right mounting plate, a first slide block is sleeved on each slide rail in a sliding manner, a sliding groove is formed in each first slide block, a third slide block is connected in each sliding groove in a sliding manner, a sliding ruler is welded together with each third slide block, a fixed ruler is welded between the first slide blocks, a plurality of drawing fixing devices are welded on the left mounting plate, a second slide block is sleeved on each slide rail in a sliding manner, a drawing fixing device is welded on one side close to each second slide block, a connecting rod is welded between the two drawing fixing devices on the left mounting plate, and a connecting rod is welded between the two drawing fixing devices on the second slide blocks, and each side, far away from the drawing fixing device, of the second sliding block is welded with a positioning device.

Preferably, the drawing fixing device runs through sliding connection and is provided with a sliding rod, one end, close to the bottom plate, of the sliding rod is bonded with a first pressing block, one end, far away from the bottom plate, of the sliding rod is bonded with an operation block, and a spring is fixedly connected between the operation block and the drawing fixing device.

Preferably, every positioner all with bottom plate lateral wall sliding connection, every equal threaded connection of positioner has a threaded rod, the one end that the threaded rod is close to the bottom plate bonds and has the second briquetting, the one end that the bottom plate was kept away from to the threaded rod bonds and has the runner.

Preferably, the third slider is a slider with a T-shaped cross section, and the sliding groove is a T-shaped sliding groove.

Preferably, the first pressing block, the second pressing block, the rotating wheel and the operation block are all made of rubber materials, and anti-skid grains are engraved on the outer walls of the rotating wheel and the operation block.

Preferably, one side of the bottom plate, which is far away from the fixed ruler, is welded with a hook, and the upper wall of the bottom plate is carved with scale marks.

The utility model discloses contrast prior art, its advantage lies in:

1. according to the drawing size of using, the second slider slides, adjusts the distance between the drawing fixing device, adjusts to suitable distance, rotates the runner for the second briquetting offsets with the bottom plate, and the distance between the drawing fixing device is fixed, makes the device can be applicable to the drawing of the histogram of not equidimension drawing, has stronger practicality.

2. After the drawing is fixed, according to the distance between the required drawing histogram longitudinal line, slide the sliding ruler, adjust the distance between sliding ruler and the fixed ruler, after adjusting to required distance, draw the histogram of required height according to the scale mark on the fixed ruler, this device simple structure, convenient to use can be quick draws the standard histogram.

Drawings

Fig. 1 is the utility model provides a structure schematic diagram of coordinatometer for mathematical statistics analysis.

Fig. 2 is a cross-sectional view of a position a of a coordinatometer for mathematical statistics and analysis.

Fig. 3 is a B-position cross-sectional view of a coordinatometer for mathematical statistics and analysis provided by the present invention.

In the figure: the device comprises a base plate 1, a left mounting plate 2, a right mounting plate 3, a drawing fixing device 4, a sliding rail 5, a first sliding block 6, a second sliding block 7, a third sliding block 61, a sliding groove 62, a sliding ruler 63, a fixed ruler 64, a positioning device 71, a threaded rod 72, a second pressing block 73, a rotating wheel 74, a sliding rod 41, a first pressing block 42, an operation block 43, a spring 45, a connecting rod 46 and a hook 101.

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.

Referring to fig. 1-3, a coordinatometer for mathematical statistics and analysis comprises a bottom plate 1, a left mounting plate 2 welded on the bottom plate 1, a right mounting plate 3 welded on the bottom plate 1, a plurality of slide rails 5 welded between the left mounting plate 2 and the right mounting plate 3, a first slide block 6 slidably sleeved on each slide rail 5, a slide groove 62 formed on each first slide block 6, a third slide block 61 slidably connected in each slide groove 62, a slide ruler 63 welded on each third slide block 61, a fixed ruler 64 welded between the first slide blocks 6, a plurality of drawing fixing devices 4 welded on the left mounting plate 2, a second slide block 7 slidably sleeved on each slide rail 5, a drawing fixing device 4 welded on one side close to each second slide block 7, a connecting rod 46 welded between two drawing fixing devices 4 on the left mounting plate 2, and a connecting rod 46 welded between two drawing fixing devices 4 on the second slide block 7, and a positioning device 71 is welded on one side of each second sliding block 7, which is far away from the drawing fixing device 4.

Drawing fixing device 4 runs through sliding connection and has slide bar 41, and the one end that slide bar 41 is close to bottom plate 1 bonds and has first briquetting 42, and the one end that slide bar 41 kept away from bottom plate 1 bonds and has operation piece 43, fixedly connected with spring 45 between operation piece 43 and the drawing fixing device 4, and drawing fixing device 4 fixes the drawing on bottom plate 1, prevents that drawing in-process drawing from appearing sliding, influences the mapping.

Every positioner 71 all with bottom plate 1 lateral wall sliding connection, every equal threaded connection of positioner 71 has threaded rod 72, threaded rod 72 is close to the one end of bottom plate 1 and bonds and has second briquetting 73, threaded rod 72 keeps away from the one end of bottom plate 1 and bonds and has runner 74, according to the distance between drawing size adjustment drawing fixing device 4, rethread positioner 71 is with the rigidity, makes this device can be applicable to the histogram drawing of not equidimension drawing, makes this device more have the practicality.

The third slider 61 is the slider that the cross-section is T shape, and sliding tray 62 is the T shape sliding tray, and the cooperation of T shape slider and sliding tray is more firm, prevents that the slider from droing from the sliding tray in the slip in-process.

First briquetting 42, second briquetting 73, runner 74, operation piece 43 is the rubber material, runner 74 and operation piece 43 outer wall have all been carved with anti-skidding line, the first briquetting 42 frictional force of rubber material is great, can prevent that the drawing from taking place to slide after fixed, the second briquetting 73 of rubber material can prevent that drawing fixing device 43 position from taking place the skew after fixed, the runner 74 of rubber material and operation piece 43 feel more comfortable, the phenomenon that skids appears in the antiskid of outer wall for the process that prevents to operate runner 74 and operation 43.

One side welding that the fixed ruler 64 was kept away from to bottom plate 1 has couple 101, and bottom plate 1 upper wall is carved with the scale mark, and couple 101 can hang the histogram after drawing, makes things convenient for the student to watch and impart knowledge to students.

In the utility model, firstly, the second slide block 7 is slid according to the size of the drawing paper to adjust the distance between the drawing paper fixing devices 4, after the distance is adjusted to a proper distance, the rotating wheel 74 is rotated, the rotating wheel 74 drives the rotating wheel of the threaded rod 72 to rotate until the second pressing block 73 is tightly pressed against the bottom plate 1, the right drawing fixing device is fixed, the drawing is fixed on the bottom plate 1 through the drawing fixing device 4, the histogram is drawn, the first sliding block 6 is slid, the two rulers are slid to the proper positions on the drawing, the third sliding block 61 is slid, the distance between the sliding ruler 63 and the fixed ruler 64 is adjusted, the required distance is adjusted according to the scale marks on the bottom plate 1, the sliding ruler 63 is pressed to draw a histogram, after the whole histogram is drawn or in the drawing process, the bottom plate 1 can be hung on a blackboard through the hook, and teaching is facilitated.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The coordinatometer for mathematical statistics and analysis comprises a bottom plate (1) and is characterized in that a left mounting plate (2) is welded on the bottom plate (1), a right mounting plate (3) is welded on the bottom plate (1), a plurality of sliding rails (5) are welded between the left mounting plate (2) and the right mounting plate (3), a first sliding block (6) is sleeved on each sliding rail (5) in a sliding mode, a sliding groove (62) is formed in each first sliding block (6), a third sliding block (61) is connected in each sliding groove (62) in a sliding mode, a sliding ruler (63) is welded on each third sliding block (61) together, a fixed ruler (64) is welded between the first sliding blocks (6), a plurality of drawing fixing devices (4) are welded on the left mounting plate (2), and a second sliding block (7) is sleeved on each sliding rail (5) in a sliding mode, every drawing fixing device (4) have all been welded to one side that second slider (7) are close, are located the welding has connecting rod (46) between two drawing fixing device (4) on left side mounting panel (2), is located the welding has connecting rod (46), every between two drawing fixing device (4) on second slider (7) one side that drawing fixing device (4) were kept away from in second slider (7) all welds positioner (71).

2. A coordinatometer for mathematical statistics analysis according to claim 1, characterized in that the drawing sheet fixing device (4) is connected with a sliding rod (41) in a penetrating manner, a first pressing block (42) is adhered to one end of the sliding rod (41) close to the base plate (1), an operation block (43) is adhered to one end of the sliding rod (41) far from the base plate (1), and a spring (45) is fixedly connected between the operation block (43) and the drawing sheet fixing device (4).

3. A coordinatometer as claimed in claim 2, wherein each of said positioning means (71) is slidably connected to the side wall of the base plate (1), each of said positioning means (71) is threadedly connected to a threaded rod (72), a second pressing block (73) is bonded to the end of said threaded rod (72) close to the base plate (1), and a rotating wheel (74) is bonded to the end of said threaded rod (72) far from the base plate (1).

4. A coordinatometer as claimed in claim 1, characterized in that said third slide (61) is a slide with a T-shaped cross-section and said slide groove (62) is a T-shaped slide groove.

5. The coordinatometer for mathematical statistics and analysis of claim 3, wherein the first pressing block (42), the second pressing block (73), the rotating wheel (74) and the operation block (43) are made of rubber, and the outer walls of the rotating wheel (74) and the operation block (43) are engraved with anti-skid lines.

6. A coordinatometer for mathematical statistics analysis as claimed in claim 1, characterized in that a hook (101) is welded to the side of the base plate (1) away from the fixed ruler (64), and the upper wall of the base plate (1) is engraved with graduation marks.