CN213691101U - Teaching aid for engineering economy - Google Patents
Teaching aid for engineering economy Download PDFInfo
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- CN213691101U CN213691101U CN202023277420.4U CN202023277420U CN213691101U CN 213691101 U CN213691101 U CN 213691101U CN 202023277420 U CN202023277420 U CN 202023277420U CN 213691101 U CN213691101 U CN 213691101U
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Abstract
The utility model discloses a teaching aid for engineering economy, which relates to the technical field of engineering economy, and comprises a working box, wherein a first fixed rod is arranged in the box body, a plurality of mounting rods are hinged on the fixed rod, each mounting rod is provided with a threaded hole and a chute, a threaded rod is screwed in the threaded hole, a mounting plate is connected in the chute in a sliding manner, the mounting plate is connected with a fixed plate, the top end of the threaded rod penetrates through the mounting plate, a first magnetic strip is arranged in the same side of each mounting rod and the mounting plate, the first magnetic strip is magnetically connected with a first magnet, a second fixed rod is arranged in the box cover, a rotary drum is sleeved on the second fixed rod, the side wall of the rotary drum is fixedly connected with a bottom plate, the front surface of the bottom plate is provided with a fan-shaped drawing plate, the center of the fan-shaped drawing plate is, the utility model discloses can carry out three-dimensional expression directly perceived, conveniently carry.
Description
Technical Field
The utility model relates to an engineering economy technical field, concretely relates to engineering economy is with teaching aid.
Background
At present, the problem that data cannot be visually and intuitively expressed often occurs in the engineering economy teaching process, and in the engineering economy teaching, statistical data need to be explained to students, and economic data and situations need to be analyzed. The column diagram and the sector diagram are simple and visual representing methods, but the column diagram and the sector diagram drawn on the classroom site are not only time-consuming and labor-consuming, but also have poor performance effect, are not favorable for engineering economy teaching, the conventional teaching aids for engineering economy are inconvenient to classify and collect, and the fixity is poor, so that the teaching aids are easier to be confused, are easy to lose and are inconvenient to use.
Disclosure of Invention
The utility model is directed to the above-mentioned problem, provide engineering economy and use teaching aid, solve engineering economy and use the inconvenient problem of using of teaching aid.
The utility model adopts the technical proposal that: the teaching aid for engineering economy comprises a working box, wherein the working box comprises a box cover and a box body, and one end of the box cover is connected with one end of the box body through a hinge;
the inner wall of the box body is provided with a first fixed rod, the fixed rod is hinged with first ends of a plurality of mounting rods, a threaded hole is formed in one side in a second end of each mounting rod, a sliding groove is formed in the other side in the second end of each mounting rod, a threaded rod is connected in the threaded hole, a mounting plate is connected in the sliding groove in a sliding mode, a fixed plate is fixedly connected to the top end of the mounting plate, and the top end of the threaded rod penetrates through the;
a first magnetic strip is arranged in the same side of the mounting rod and the mounting plate, and a first magnet is magnetically connected to the first magnetic strip;
the box cover inner wall is provided with the second dead lever, the cover is equipped with the rotary drum on the second dead lever, rotary drum lateral wall fixedly connected with bottom plate, the bottom plate openly is provided with fan-shaped drawing board, fan-shaped drawing board central point puts the first end of department rotation connection a plurality of elastic rods, the second end of elastic rod is provided with the second magnetite, the outermost circle of inner wall of fan-shaped drawing board is provided with second magnetite matched with second magnetic stripe, second magnetite and second magnetic stripe magnetism are connected.
Furthermore, the side wall of the installation rod is hinged with a first limiting rod, a first limiting hole matched with the first limiting rod is formed in the box body, the first limiting rod is detachably connected with the first limiting hole, the back face of the bottom plate is hinged with a plurality of second limiting rods, a second limiting hole matched with the second limiting rod is formed in the box cover, and the second limiting rod is detachably connected with the second limiting hole.
Furthermore, angle scale marks are arranged on the fan-shaped drawing board, and scale marks are arranged on the outer wall of the same side of the mounting rod and the mounting plate.
Further, the threaded rod top runs through mounting panel fixedly connected with carousel.
Furthermore, the central position of the fan-shaped drawing board is provided with an I-shaped annular disc, the I-shaped annular disc is connected with a matched limiting arc-shaped block in a sliding mode, the first end of the elastic rod penetrates through the I-shaped annular disc and is fixedly connected with the side wall of the limiting arc-shaped block, and the limiting arc-shaped blocks are arranged in the I-shaped annular disc in a staggered mode and do not interfere with each other.
Further, a handle is arranged on the work box.
The utility model has the advantages that:
the utility model discloses a set up the work box, case lid one end hinge joint has the one end of box, and case lid box and box opening and shutting department are provided with the hasp, conveniently open and the lock, are provided with the handle on the work box, and the handle is conveniently taken and is carried;
by arranging the mounting rod, the threaded rod is driven to rotate in the threaded hole by rotating the rotary table, the mounting plate is driven to ascend or descend in the sliding groove, the height is conveniently adjusted, straight strips with different lengths are visually displayed, and visual observation is facilitated;
through setting up fan-shaped drawing board, through the second end that stimulates the elastic rod respectively for the second magnetite is kept away from the second magnetic stripe, then rotates the elastic rod respectively, makes spacing arc piece on the elastic rod at the internal rotation of I-shaped ring dish, and the user can select the elastic rod of different quantity as required, rotates the elastic rod and can divide into the fan-shaped drawing board into the fan-shaped of each variation in size according to the percentage that each part quantity accounts for the total number, and then audio-visual demonstrates, convenient visual observation.
The bottom end of the first limiting rod is inserted into a corresponding first limiting hole in the box body through the arrangement of the first limiting rod and the second limiting rod, so that the erection of the installation rod is facilitated, and the bottom end of the second limiting rod on the bottom plate is inserted into a corresponding second limiting hole in the box cover, so that the erection of the bottom plate is facilitated; the utility model discloses can carry out the quick expression directly perceived of three-dimensional model with the relevant cylindricality picture of engineering economy and fan-shaped picture, convenient categorised accomodating conveniently carries.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the threaded rod of the present invention;
fig. 3 is a schematic view of the structure of the mounting plate of the present invention;
fig. 4 is a schematic structural view of a first limiting rod of the present invention;
FIG. 5 is a schematic structural view of a fan-shaped drawing board according to the present invention;
FIG. 6 is a schematic view of the structure of the elastic rod of the present invention;
fig. 7 is a schematic structural view of a second limiting rod of the present invention;
fig. 8 is a schematic structural view of the work box of the present invention.
Reference numerals:
1-work box, 2-bottom plate, 3-mounting rod, 4-mounting plate, 5-fixing plate, 6-threaded rod, 7-fan-shaped drawing board, 8-I-shaped annular disc, 9-elastic rod, 10-second limiting rod, 11-first limiting rod, 12-second limiting hole, 13-first limiting hole, 14-first magnet, 21-rotary drum, 22-second fixing rod, 31-first fixing rod, 41-sliding chute, 61-rotary disc, 62-threaded hole, 91-second magnet, 92-limiting arc block, 101-box cover, 102-box body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1 to 8, the teaching aid for engineering economy comprises a working box 1, wherein the working box 1 comprises a box cover 101 and a box body 102, one end of the box cover 101 is connected with one end of the box body 102 through a hinge, a lock catch is arranged at the opening and closing position of the box cover 101 and the box body 102, the opening and the closing are convenient, a lifting handle is arranged on the working box 1, and the lifting handle is convenient to take and carry;
a first fixed rod 31 is arranged on the inner wall of the box body 102, and first ends of a plurality of mounting rods 3 are hinged to the fixed rod 31, so that the mounting rods 3 can rotate conveniently; the installation rod 3 is convenient to store in the box body 102, and the use is convenient;
a first limiting rod 11 is hinged on the side wall of the mounting rod 3, a first limiting hole 13 matched with the first limiting rod 11 is arranged in the box body 102, and the first limiting rod is detachably connected with the first limiting hole 13;
the installation rods 3 on the first fixing rods 31 are respectively rotated, and then the bottom ends of the first limiting rods 11 on the installation rods 3 are inserted into the corresponding first limiting holes 13 in the box body 102, so that the installation rods 3 can be erected conveniently and are convenient to use;
a threaded hole 62 is formed in one side of the second end of the mounting rod 3, a sliding groove 41 is formed in the other side of the second end of the mounting rod 3, a threaded rod 6 is connected in the threaded hole 62 in a threaded manner, a mounting plate 4 is connected in the sliding groove 41 in a sliding manner, a fixing plate 5 is fixedly connected to the top end of the mounting plate 4, a rotary disc 61 is fixedly connected to the top end of the threaded rod 6 in a manner of penetrating through the mounting plate;
the outer wall of the same side of the mounting rod 3 and the mounting plate 4 is provided with scale marks, and the scale marks are convenient for adjusting the height of the mounting plate 4 in the mounting rod 3;
the threaded rod 6 is driven to rotate in the threaded hole 62 by rotating the turntable 61, the mounting plate 4 is driven to ascend or descend in the chute 41, the height is conveniently adjusted, straight strips with different lengths are visually displayed, the three-dimensional model of the cylindrical diagram related to engineering economy is visually displayed, and visual observation is facilitated;
a first magnetic strip is arranged in the same side of the mounting rod 3 and the mounting plate 4, and a first magnet 14 is magnetically connected to the first magnetic strip;
the plurality of first magnets 14 can be set to be different colors, so that sharp contrast can be realized, and under the condition that the plurality of mounting plates 4 are at the same height, the structure of the column diagram can be conveniently and visually represented by moving the positions of the first magnets 14;
a second fixed rod 22 is arranged on the inner wall of the box cover 101, a rotary drum 21 is sleeved on the second fixed rod 22, and a bottom plate 2 is fixedly connected to the side wall of the rotary drum 21, so that the bottom end of the bottom plate 2 can rotate on the second fixed rod 22;
the back of the bottom plate 2 is hinged with a plurality of second limiting rods 10, second limiting holes 12 matched with the second limiting rods 10 are formed in the box cover, and the second limiting rods 10 are detachably connected with the second limiting holes 12;
the bottom ends of the second limiting rods 10 on the bottom plate 2 are inserted into the corresponding second limiting holes 12 in the box cover 101 by respectively rotating the bottom plate 2 on the second fixing rods 22, so that the bottom plate 2 is favorably erected and is convenient to use;
the front surface of the bottom plate 2 is provided with a fan-shaped drawing board 7, the central position of the fan-shaped drawing board 7 is rotatably connected with the first ends of a plurality of elastic rods 9, and the elastic rods 9 are made of elastic materials, so that the convenience and the practicability are realized;
an I-shaped annular disc 8 is arranged at the center of the fan-shaped drawing board 7, a matched limiting arc-shaped block 92 is connected in the I-shaped annular disc 8 in a sliding mode, the first end of the elastic rod 9 penetrates through the I-shaped annular disc 8 and is fixedly connected with the side wall of the limiting arc-shaped block 92, the width size of the limiting arc-shaped block 92 is larger than the size of an I-shaped opening of the I-shaped annular disc 8, the limiting arc-shaped block 92 is beneficial to limiting, and the first end of the elastic rod 9 is prevented from falling off in the I-shaped annular disc 8;
the plurality of limiting arc-shaped blocks 92 are arranged in the I-shaped annular disc 8 in a staggered manner without interfering with each other, so that stacking and dislocation of the plurality of elastic rods 9 are facilitated, the sector-shaped drawing board 7 is facilitated to be visually expressed, and various choices can be provided;
a second magnet 91 is arranged at the second end of the elastic rod 9, a second magnetic strip matched with the second magnet 91 is arranged on the outermost circle of the inner wall of the fan-shaped drawing board 7, the second magnet 91 is magnetically connected with the second magnetic strip, the magnetic adsorption force of the second magnet 91 and the second magnetic strip is greater than the self weight of the elastic rod 9 and the limiting arc-shaped block 92, so that the stable fixation of the elastic rod 9 in the vertical state of the fan-shaped drawing board 7 is facilitated, and the phenomenon that the elastic rod deflects downwards due to gravity to influence the use is avoided;
the fan-shaped drawing board 7 is provided with angle scale marks which are beneficial to adjusting the rotation of the elastic rod 9 according to the angle;
second end through pulling elastic rod 9 respectively for second magnetite 91 keeps away from the second magnetic stripe, then rotate elastic rod 9 respectively, make spacing arc 9 on the elastic rod 9 at the internal rotation of I-shaped ring dish 8, the user can select different quantity's elastic rod 9 as required, it can divide into the fan-shaped drawing board 7 into the fan-shaped of each variation in size according to the percentage of each part quantity account for total to rotate elastic rod 9, and then audio-visual the demonstration, be favorable to showing the fan-shaped drawing three-dimensional model that engineering economy is relevant directly perceived, convenient direct-viewing observation.
The working principle is as follows: when in use, the work box 1 is placed on a proper platform, the lock catch is opened, and the box cover 101 and the box body 102 are flatly laid on the platform;
according to the number of the required column diagrams, the mounting rods 3 on the first fixing rods 31 are respectively rotated, then the bottom ends of the first limiting rods 11 on the mounting rods 3 are inserted into corresponding first limiting holes 13 in the box body 102, so that the mounting rods 3 are favorably erected, and then the threaded rods 6 are driven to rotate in the threaded holes 62 by rotating the rotary disc 61 according to the length requirement of the required column diagrams, so that the mounting plates 4 are driven to ascend or descend in the sliding grooves 41, straight strips with different lengths are visually represented, and visual observation is facilitated;
or, in the case where the plurality of mounting plates 4 are at the same height, the structure of the bar graph is also conveniently and intuitively represented by moving the positions of the first magnets 14, respectively;
the bottom ends of the second limiting rods 10 on the bottom plate 2 are inserted into the corresponding second limiting holes 12 in the box cover 101 by respectively rotating the bottom plate 2 on the second fixing rods 22, so that the bottom plate 2 is favorably erected and is convenient to use;
then respectively pulling the second ends of the elastic rods 9 to enable the second magnets 91 to be far away from the second magnetic stripes, respectively rotating the elastic rods 9 to enable the limiting arc-shaped blocks 9 on the elastic rods 9 to rotate in the I-shaped annular disc 8, enabling a user to select different numbers of the elastic rods 9 as required, and enabling the fan-shaped drawing board 7 to be divided into fan-shaped drawing boards 7 with different sizes according to the percentage of the number of each part, so that the fan-shaped drawing boards can be visually displayed and can be conveniently and visually observed;
after use, the mounting plate 4 is retracted into the sliding groove 41, the threaded rod 6 is retracted into the threaded hole 62, and then the first limiting rod 11 and the second limiting rod 10 are respectively disassembled.
The utility model discloses a set up the work box, case lid one end hinge joint has the one end of box, and case lid box and box opening and shutting department are provided with the hasp, conveniently open and the lock, are provided with the handle on the work box, and the handle is conveniently taken and is carried;
by arranging the mounting rod, the threaded rod is driven to rotate in the threaded hole by rotating the rotary table, the mounting plate is driven to ascend or descend in the sliding groove, the height is conveniently adjusted, straight strips with different lengths are visually displayed, and visual observation is facilitated;
through setting up fan-shaped drawing board, through the second end that stimulates the elastic rod respectively for the second magnetite is kept away from the second magnetic stripe, then rotates the elastic rod respectively, makes spacing arc piece on the elastic rod at the internal rotation of I-shaped ring dish, and the user can select the elastic rod of different quantity as required, rotates the elastic rod and can divide into the fan-shaped drawing board into the fan-shaped of each variation in size according to the percentage that each part quantity accounts for the total number, and then audio-visual demonstrates, convenient visual observation.
The bottom end of the first limiting rod is inserted into the corresponding first limiting hole in the box body through the arrangement of the first limiting rod and the second limiting rod, so that the erection of the mounting rod is facilitated; the bottom end of a second limiting rod on the bottom plate is inserted into a corresponding second limiting hole in the box cover, so that the bottom plate can be erected conveniently; the utility model discloses can carry out the quick expression directly perceived of three-dimensional model with the relevant cylindricality picture of engineering economy and fan-shaped picture, convenient categorised accomodating conveniently carries.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. The teaching aid for engineering economy is characterized by comprising a working box (1), wherein the working box (1) comprises a box cover (101) and a box body (102), and one end of the box cover (101) is connected with one end of the box body (102) through a hinge;
a first fixing rod (31) is arranged on the inner wall of the box body (102), a plurality of first ends of the mounting rods (3) are hinged to the fixing rod (31), a threaded hole (62) is formed in one side of the second end of each mounting rod (3), a sliding groove (41) is formed in the other side of the second end of each mounting rod (3), a threaded rod (6) is connected with the threaded hole (62) in a threaded manner, a mounting plate (4) is connected in the sliding groove (41) in a sliding manner, a fixing plate (5) is fixedly connected to the top end of the mounting plate (4), and the top end of the threaded rod (6;
a first magnetic strip is arranged in the same side of the mounting rod (3) and the mounting plate (4), and a first magnet (14) is magnetically connected to the first magnetic strip;
case lid (101) inner wall is provided with second dead lever (22), the cover is equipped with rotary drum (21) on second dead lever (22), rotary drum (21) lateral wall fixedly connected with bottom plate (2), bottom plate (2) openly are provided with fan-shaped drawing board (7), fan-shaped drawing board (7) central point department of putting rotates the first end of connecting a plurality of elastic rods (9), the second end of elastic rod (9) is provided with second magnetite (91), the outermost circle of inner wall of fan-shaped drawing board (7) is provided with second magnetite (91) matched with second magnetic stripe, second magnetite (91) and second magnetic stripe magnetism are connected.
2. The teaching aid for engineering economy as claimed in claim 1, characterized in that a first limiting rod (11) is hinged to the side wall of the mounting rod (3), a first limiting hole (13) matched with the first limiting rod (11) is formed in the box body (102), the first limiting rod (11) is detachably connected with the first limiting hole (13), a plurality of second limiting rods (10) are hinged to the back of the bottom plate (2), a second limiting hole (12) matched with the second limiting rod (10) is formed in the box cover, and the second limiting rod (10) is detachably connected with the second limiting hole (12).
3. The teaching aid for engineering economy as claimed in claim 1, characterized in that fan-shaped drawing board (7) is provided with angle scale marks, and the outer wall of the same side of mounting rod (3) and mounting plate (4) is provided with scale marks.
4. Teaching aid for engineering economy according to claim 1, characterized in that the threaded rod (6) has a top end which penetrates the mounting plate (4) and is fixedly connected with a turntable (61).
5. The teaching aid for engineering economy as claimed in claim 1, characterized in that fan-shaped drawing board (7) central point department is provided with I-shaped annular dish (8), sliding connection has spacing arc piece (92) of matched with in I-shaped annular dish (8), the first end of elastic rod (9) runs through I-shaped annular dish (8) and spacing arc piece (92) lateral wall fixed connection, a plurality of spacing arc piece (92) are in the staggered setting of the mutual noninterference of I-shaped annular dish (8).
6. Teaching aid for engineering economy according to claim 1, characterized in that the work box (1) is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023277420.4U CN213691101U (en) | 2020-12-30 | 2020-12-30 | Teaching aid for engineering economy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023277420.4U CN213691101U (en) | 2020-12-30 | 2020-12-30 | Teaching aid for engineering economy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213691101U true CN213691101U (en) | 2021-07-13 |
Family
ID=76740402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023277420.4U Active CN213691101U (en) | 2020-12-30 | 2020-12-30 | Teaching aid for engineering economy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213691101U (en) |
-
2020
- 2020-12-30 CN CN202023277420.4U patent/CN213691101U/en active Active
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