阅读说明：本技术 一种线性代数演示装置 (Linear algebra presentation device ) 是由 马玉秋 盛晓娜 赵鹏飞 于 2020-07-27 设计创作，主要内容包括：本发明涉及数学领域,更具体的说是一种线性代数演示装置,包括半框、双螺纹螺杆、限位环、滑片、滑轨座、侧座和梯形滑轨,本发明在演示线性代数时可以从演示行列式和演示矩阵之间进行切换。所述滑轨座的上侧设置有梯形滑轨,滑轨座的左右两端均固定连接有侧座,双螺纹螺杆左右两部分的螺纹旋向相反,双螺纹螺杆的左右两端分别转动连接在两个侧座上,双螺纹螺杆的左右两端均固定连接有限位环,两个限位环分别与两个侧座的外侧贴合,半框左右各设置有一个,两个半框的下侧均固定连接有滑片,两个滑片均滑动连接在梯形滑轨上,双螺纹螺杆的左右两端通过螺纹分别与两个滑片相配合。(The invention relates to the field of mathematics, in particular to a linear algebra demonstration device which comprises a half frame, a double-thread screw, a limiting ring, a sliding sheet, a sliding rail seat, a side seat and a trapezoidal sliding rail. The upside of slide rail seat is provided with trapezoidal slide rail, the equal fixedly connected with side seat in both ends about the slide rail seat, the screw thread of two parts is to opposite about the double thread screw rod, the both ends are rotated respectively and are connected on two side seats about the double thread screw rod, the equal fixedly connected with spacing ring in both ends about the double thread screw rod, two spacing rings respectively with the outside laminating of two side seats, respectively be provided with one about half frame, the equal fixedly connected with gleitbretter of downside of two half frames, the equal sliding connection of two gleitbretters is on trapezoidal slide rail, both ends cooperate with two gleitbretters respectively through the screw thread about the double thread screw rod.)

1. The utility model provides a linear algebra presentation device, includes half frame (1), two screw thread screw rods (103), spacing ring (104), gleitbretter (105), slide rail seat (3), side seat (301) and trapezoidal slide rail (302), its characterized in that: the upside of slide rail seat (3) is provided with trapezoidal slide rail (302), the equal fixedly connected with side seat (301) in both ends about slide rail seat (3), the screw thread of two parts is opposite about double thread screw rod (103), both ends rotate respectively and connect on two side seats (301) about double thread screw rod (103), the equal fixedly connected with spacing ring (104) in both ends about double thread screw rod (103), two spacing rings (104) are laminated with the outside of two side seats (301) respectively, respectively be provided with one about half frame (1), the equal fixedly connected with gleitbretter (105) of downside of two half frames (1), two gleitbretters (105) are equal sliding connection on trapezoidal slide rail (302), both ends cooperate with two gleitbretters (105) respectively through the screw thread about double thread screw rod (103).

2. A linear algebra presentation device according to claim 1, characterized by: the linear algebra demonstration device further comprises convex columns (101) and elastic bands (102), the upper end and the lower end of the outer side of each half frame (1) are fixedly connected with the convex columns (101), and the two ends of each elastic band (102) are tied to two of the convex columns (101) respectively.

3. A linear algebra presentation device according to claim 2, characterized in that: the linear algebra demonstration device further comprises side plate strips (2), middle bracket edges (201), gears (202), bottom shafts (203), fixing seats (204) and linear edges (206), the lower parts of the two half frames (1) are fixedly connected with the fixing seats (204), the left side and the right side of each side plate strip (2) are respectively provided with one, the front side and the rear side of each side plate strip (2) are respectively provided with the middle bracket edges (201) and the linear edges (206), the lower ends of the two side plate strips (2) are respectively fixedly connected with the gears (202), the lower ends of the two gears (202) are respectively fixedly connected with the bottom shafts (203), the two bottom shafts (203) are respectively rotatably connected onto the two fixing seats (204), and the two half frames (1) are respectively located between the two side plate strips (2).

4. A linear algebra presentation device according to claim 3, characterized in that: the linear algebra presentation device also comprises a front column (205), a middle slide bar (4), a middle connecting rod (401), a square column (402), a rack (403) and a transverse cylinder (404), the front sides of the two fixing seats (204) are fixedly connected with front columns (205), the two front columns (205) are connected with square columns (402) in a front-back direction in a sliding mode, the outer ends of the two square columns (402) are fixedly connected with racks (403), the two racks (403) are respectively meshed with the outer sides of the two gears (202) for transmission, the middle sliding rod (4) is connected to the middle of the sliding rail seat (3) in a front-back direction in a sliding mode, the middle sliding rod (4) and the sliding rail seat (3) are fixed in a screw pressing mode, the lower end of the middle connecting rod (401) is fixedly connected to the front end of the middle sliding rod (4), the middle of the transverse cylinder (404) is fixedly connected to the upper portion of the middle connecting rod (401), and the left end and right end of the transverse cylinder (404) are respectively connected to the two square columns (402) in a.

5. A linear algebra presentation device according to claim 4, characterized by: the linear algebra demonstration device also comprises a base (304), and the slide rail seat (3) is fixedly connected to the upper side of the base (304).

6. A linear algebra presentation device according to claim 5, characterized by: the linear algebra presentation device further comprises an L-shaped frame (303), a transverse rod (5) and a transverse rubber strip (501), the lower end of the L-shaped frame (303) is fixedly connected to the base (304), the left end of the transverse rod (5) is fixedly connected to the upper portion of the L-shaped frame (303), the transverse rubber strip (501) is bonded to the upper side of the transverse rod (5), and the transverse rod (5) is located on the rear sides of the two half frames (1).

7. A linear algebra presentation device according to claim 6, characterized by: linear algebra presentation device still includes slider (502), vertical pole (503), perpendicular rubber strip (504) and places seat (505), slider (502) sliding connection is on horizontal pole (5), the lower extreme fixedly connected with vertical pole (503) of slider (502), sliding connection has a plurality of seats (505) of placing on vertical pole (503), the upper portion fixed connection of perpendicular rubber strip (504) is on slider (502), a plurality of rear sides of placing seat (505) all press the front side of perpendicular rubber strip (504).

8. A linear algebra presentation device according to claim 7, characterized by: the linear algebra presentation device further comprises a square groove (507), a digital plate (508) and a square insertion block (509), the square groove (507) is formed in the front side of the placing seat (505), the square insertion block (509) is fixedly connected to the rear side of the digital plate (508), and the square insertion block (509) is inserted into the square groove (507).

9. A linear algebra presentation device according to claim 8, characterized by: the linear algebra presentation device further comprises a convex plate (506) and a threaded rod (6), the convex plate (506) is fixedly connected to the rear side of the placing seat (505), the threaded rod (6) transversely penetrates through the convex plate (506), and nuts are connected to the left end and the right end of the threaded rod (6) through threads.

10. A linear algebra presentation device according to claim 9, characterized by: magnets are arranged in the square grooves (507), and the square insertion blocks (509) are made of iron.

Technical Field

The invention relates to the field of mathematics, in particular to a linear algebra demonstration device.

Background

Linear algebra is a branch of mathematics and its study objects are vectors, vector spaces, linear transformations and finite dimensional linear equations. Vector space is an important topic of modern mathematics; thus, linear algebra is widely used in abstract algebra and functional analysis; by resolving the geometry, linear algebra is specified. The theory of linear algebra has been generalized to operator theory. Since a nonlinear model in scientific research can be generally approximated as a linear model, linear algebra is widely used in natural science and social science. The traditional linear algebra demonstration device cannot switch between a determinant and a matrix.

Disclosure of Invention

The invention provides a linear algebra demonstration device, which has the beneficial effect that the demonstration determinant and the demonstration matrix can be switched when linear algebra is demonstrated.

The invention relates to the field of mathematics, in particular to a linear algebra demonstration device which comprises a half frame, a double-thread screw, a limiting ring, a sliding sheet, a sliding rail seat, a side seat and a trapezoidal sliding rail.

The upside of slide rail seat is provided with trapezoidal slide rail, the equal fixedly connected with side seat in both ends about the slide rail seat, the screw thread of two parts is to opposite about the double thread screw rod, the both ends are rotated respectively and are connected on two side seats about the double thread screw rod, the equal fixedly connected with spacing ring in both ends about the double thread screw rod, two spacing rings respectively with the outside laminating of two side seats, respectively be provided with one about half frame, the equal fixedly connected with gleitbretter of downside of two half frames, the equal sliding connection of two gleitbretters is on trapezoidal slide rail, both ends cooperate with two gleitbretters respectively through the screw thread about the double thread screw rod.

The linear algebra demonstration device further comprises convex columns and elastic bands, the upper ends and the lower ends of the outer sides of the half frames are fixedly connected with the convex columns, and the two ends of the elastic bands are tied to the two convex columns respectively.

Linear algebra presentation device still includes side board strip, well bracket arris, gear, bottom shaft, fixing base and sharp arris, the equal fixedly connected with fixing base in lower part of two half frames, respectively be provided with one about the side board strip, both sides are provided with well bracket arris and sharp arris respectively around every side board strip, the equal fixedly connected with gear of lower extreme of two side board strips, the equal fixedly connected with bottom shaft of lower extreme of two gears, two bottom shafts rotate respectively and connect on two fixing bases, two half frames all are located between two side board strips.

Linear algebra presentation device still includes the front pillar, well slide bar, well connecting rod, the square column, rack and horizontal cylinder, the equal fixedly connected with front pillar in front side of two fixing bases, all there is the square column sliding connection in the front rear direction on two front pillars, the equal fixedly connected with rack in outer end of two square columns, two racks mesh the transmission with the outside of two gears respectively, well slide bar sliding connection is in the middle part of slide rail seat in the front rear direction, it is fixed through the mode that the screw compressed tightly between well slide bar and the slide rail seat, the lower extreme fixed connection of well connecting rod is the front end of well slide bar in, horizontal cylindrical middle part fixed connection is on the upper portion of well connecting rod, both ends are sliding connection on two square columns about horizontal cylindrical respectively in the direction.

The linear algebra demonstration device further comprises a base, and the slide rail seat is fixedly connected to the upper side of the base.

The linear algebra presentation device further comprises an L-shaped frame, a transverse rod and a transverse rubber strip, the lower end of the L-shaped frame is fixedly connected to the base, the left end of the transverse rod is fixedly connected to the upper portion of the L-shaped frame, the transverse rubber strip is bonded to the upper side of the transverse rod, and the transverse rod is located on the rear sides of the two half frames.

Linear algebra presentation device still includes slider, vertical rod, perpendicular rubber strip and places the seat, and slider sliding connection is on the transverse bar, and the lower extreme fixedly connected with vertical rod of slider has a plurality of seats of placing of sliding connection on the vertical rod, and the upper portion fixed connection of erecting the rubber strip is on the slider, and the rear side voltage-sharing of a plurality of seats of placing is in the front side of erecting the rubber strip.

The linear algebra presentation device also comprises a square groove, a digital plate and a square insertion block, the front side of the placing seat is provided with the square groove, the rear side of the digital plate is fixedly connected with the square insertion block, and the square insertion block is inserted in the square groove.

The linear algebra presentation device also comprises a convex plate and a threaded rod, the rear side of the placing seat is fixedly connected with the convex plate, the threaded rod transversely penetrates through the convex plate, and the left end and the right end of the threaded rod are both connected with nuts through threads.

And magnets are arranged in the square grooves, and the square insertion blocks are made of iron.

The linear algebra demonstration device has the beneficial effects that:

the invention relates to a linear algebra demonstration device, which can switch between a demonstration determinant and a demonstration matrix when demonstrating linear algebra. The two sliding sheets can be driven to be close to or far away from each other when the double-thread screw is rotated, and then the two half frames are driven to be close to or far away from each other, because the row number of the determinant in the linear algebra is equal to the column number, and the row number of the matrix is not necessarily equal to the column number, the two half frames are adjusted to form a square when the determinant is demonstrated, and the two half frames are adjusted to be rectangular according to the row number and the column number of the matrix when the matrix is demonstrated, so that the invention can switch between the determinant demonstration and the matrix when the linear algebra is demonstrated.

Drawings

The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of an overall structure of a linear algebra demonstration apparatus according to the present invention;

FIG. 2 is a schematic diagram of an overall structure of a linear algebra demonstration apparatus according to the present invention;

FIG. 3 is a schematic structural diagram of a half-frame;

FIG. 4 is a first schematic view of the construction of the side panel;

FIG. 5 is a second schematic structural view of a side panel;

FIG. 6 is a schematic structural view of a slide rail seat;

FIG. 7 is a schematic structural diagram of a middle slide bar;

FIG. 8 is a first schematic view of the structure of the transverse bar;

fig. 9 is a second structural view of the transverse bar.

In the figure: half frame 1; a convex column 101; an elastic band 102; a double-threaded screw 103; a stop collar 104; a slip sheet 105; side panels 2; a middle bracket edge 201; a gear 202; a bottom shaft 203; a fixed base 204; a front pillar 205; a linear edge 206; a slide rail seat 3; a side seat 301; a trapezoidal slide rail 302; an L-shaped frame 303; a base 304; a middle sliding rod 4; a middle link 401; a square column 402; a rack 403; a transverse cylinder 404; a transverse bar 5; a transverse rubber strip 501; a slider 502; a vertical rod 503; a vertical rubber strip 504; a placing seat 505; a convex plate 506; a square groove 507; a number plate 508; a square insert block 509; a threaded rod 6.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.