CN211149921U

CN211149921U - Novel sand table training teaching aid base for teaching of economics major

Info

Publication number: CN211149921U
Application number: CN201922294042.1U
Authority: CN
Inventors: 李�杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-07-31
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a novel real teaching aid base of instructing of sand table that economics specialty teaching was used, comprising a base plate, be equipped with the battery in the bottom plate, the bottom plate top is equipped with the sleeve, sliding connection pull rod in the sleeve, the pull rod top is equipped with the install bin, the electricity push rod is worn to establish by the install bin bottom, the mounting panel is connected at electricity push rod top, the install bin outside is equipped with the spout, sliding connection has the apron in the spout, mounting panel top both sides all are equipped with fixing device, the mounting panel top is equipped with the bracing piece, the articulated spring reel in bracing piece top, around establishing wire rope on the spring reel, articulated roller one and roller two on the apron inner wall. Compared with the prior art, the utility model the advantage lie in: the utility model discloses not only can prevent dust, can also realize the automatic closure of apron and open, can height-adjusting, can also press from both sides tight not unidimensional sand table, have extensive suitability.

Description

Novel sand table training teaching aid base for teaching of economics major

Technical Field

The utility model relates to a power supply field specifically is a real teaching aid base of instructing of sand table that novel economics specialty teaching was used.

Background

Sand table, i.e. a model which is piled up by silt, weapons and other materials according to a certain proportion relation according to a topographic map, an aviation photograph or a field topography. In the teaching process, in order to better show the contents of the students to be taught, the sand table simulation is used as an experiential teaching mode to well combine the theory and practice together, so that teachers and students can participate together, the interest of learning is greatly improved, the students cannot feel boring in the learning process, and the learning interest of the students is greatly stimulated.

Present real teaching aid base of instructing of sand table generally all takes a stool or shelf to support at will, can make the support unstable, easily cause the real damage of instructing the teaching aid of sand table, break teaching rhythm easily, influence the teaching progress, also cause inconvenience for the use of real teaching aid of training of sand table, and in addition, current sand table base is when not using, unable effectual save sand table, accumulate the dust on the sand table very easily.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide a fixed firm. Sand table training teaching aid base that teaching of novel economics specialty that can effectively dirt-proof was used.

In order to solve the above problem, the technical scheme of the utility model is that: a novel sand table training teaching aid base for economics major teaching comprises a bottom plate, wherein a storage battery is arranged in the bottom plate, the top of the bottom plate is provided with a sleeve, the sleeve is connected with a pull rod in a sliding way, the top end of the pull rod is provided with an installation box, an electric push rod is arranged at the bottom of the installation box in a penetrating way, the top end of the electric push rod is connected with the installation plate, a sliding groove is arranged at the outer side of the installation box, a cover plate is connected in the sliding groove in a sliding manner, fixing devices are arranged on two sides of the top of the mounting plate, a supporting rod is arranged on the top of the mounting plate, the top end of the supporting rod is hinged with a spring reel, a steel wire rope is wound on the spring reel, the inner wall of the cover plate is hinged with a roller I and a roller II, the steel wire rope sequentially passes through the first roller and the second roller, one end of the steel wire rope penetrates through the cover plate, and the cover plate is connected with a balancing weight, a magnet is arranged at one end of the cover plate, and a controller is arranged at the bottom of the installation box.

As an improvement, the fixing device comprises a screw, the bottom of the screw is fixedly connected to the mounting plate, a spring is wound on the screw, the top end of the spring is abutted to a pressing plate arranged on the screw in a sleeved mode, and a nut arranged on the screw in a sleeved mode is arranged above the pressing plate.

As an improvement, the top of the sleeve is provided with a threaded hole, and the sleeve and the pull rod are fixed through bolts.

As an improvement, a through hole is formed in the bottom of one end of the cover plate, the through hole is of a circular structure, the balancing weight is of a cylindrical structure, and the diameter of the through hole is smaller than that of the balancing weight.

As an improvement, steel balls are fixedly arranged on the steel wire rope, a baffle connected to the inner wall of the cover plate is arranged right above the roller I, and the distance from the baffle to the roller I is smaller than the diameter of the steel balls.

Compared with the prior art, the utility model the advantage lie in:

through the apron not only can prevent that the dust from dropping on the sand table, moreover, can also regard as the desk to use after the apron is closed, extensive applicability can press from both sides the sand table through clamping device, prevents that the sand table from rocking, can adjust the height of install bin through sleeve, pull rod and bolt, can realize the automatic closure and the opening of apron through electric push rod lift mounting panel. The utility model discloses not only can prevent dust, can also realize the automatic closure of apron and open, can height-adjusting, can also press from both sides tight not unidimensional sand table, have extensive suitability.

Drawings

Fig. 1 is a structural view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a structural view of the clamping device of the present invention.

As shown in the figure: 1. the device comprises a bottom plate, 2, a storage battery, 3, a sleeve, 4, a pull rod, 5, a bolt, 6, an installation box, 7, an electric push rod, 8, an installation plate, 9, a fixing device, 10, a support rod, 11, a spring winding drum, 12, a cover plate, 13, a roller I, 14, a roller II, 15, a through hole, 16, a steel wire rope, 17, a balancing weight, 18, a controller, 19, a screw rod, 20, a spring, 21, a pressing plate, 22, a nut, 23, a sliding chute, 24, a magnet, 25, a baffle, 26 and a steel ball.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals.

It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

In order to make the content of the present invention more clearly understood, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the attached drawings in the embodiment of the present invention.

As shown in fig. 1 to 3, a novel sand table training teaching aid base for economics major teaching comprises a bottom plate 1, a storage battery 2 is arranged in the bottom plate 1, a sleeve 3 is arranged at the top of the bottom plate 1, a pull rod 4 is slidably connected in the sleeve 3, an installation box 6 is arranged at the top end of the pull rod 4, an electric push rod 7 is arranged at the bottom of the installation box 6 in a penetrating manner, an installation plate 8 is connected at the top end of the electric push rod 7, a sliding groove 23 is arranged on the outer side of the installation box 6, a cover plate 12 is slidably connected in the sliding groove 23, fixing devices 9 are arranged on both sides of the top of the installation plate 8, a support rod 10 is arranged at the top end of the installation plate 8, a spring reel 11 is hinged at the top end of the support rod 10, a steel wire rope 16 is wound on the spring reel 11, a first roller 13 and a second roller 14 are hinged, and is connected with a balancing weight 17, one end of the cover plate 12 is provided with a magnet 24, and the bottom of the installation box 6 is provided with a controller 18.

Fixing device 9 includes screw rod 19, screw rod 19 bottom fixed connection is on mounting panel 8, around establishing spring 20 on the screw rod 19, the clamp plate 21 on screw rod 19 is established to spring 20 top butt cover, clamp plate 21 top is equipped with the nut 22 of establishing on

screw rod

19, 3 tops of sleeve are equipped with the screw hole, sleeve 3 and pull rod 4 pass through bolt 5 fixed, 12 one end bottoms of apron are equipped with through-hole 15, through-hole 15 is circular structure, balancing weight 17 is cylindrical structure, the diameter of through-hole 15 is less than the diameter of balancing weight 17, the fixed steel ball 26 that is equipped with on the wire rope 16, be equipped with the baffle 25 of connection on apron 12 inner wall directly over roller 13, the distance of baffle 25 to roller 13 is less than the diameter of steel ball 26.

In a particular use, the sand table is placed on the mounting plate 8, the nut 22 is rotated upwards, the edge of the sand table is pressed using the pressure plate 21, and the nut 22 is rotated downwards so that the nut 22 presses the pressure plate 21 tightly against the sand table.

When the sand table is not used, the cover plate 12 is in a closed state, the device can be used as a table, when the sand table needs to be used, the pull rod 4 is pulled out of the sleeve 3 and is adjusted to a proper height, then the bolt 5 is used for fixing, the electric push rod 7 lifts the mounting plate 8 upwards, due to the action of the magnet 24, the cover plate 12 cannot be opened immediately, at the moment, the distance between the spring winding drum 11 and the roller 13 is reduced, the counter weight 17 moves downwards, the descending speed is increased, the steel wire rope 16 is driven to stretch, when the steel ball 26 fixed on the steel wire rope 16 is clamped at the baffle 25 and the roller 13, the steel wire rope 16 is not stretched, the seed matching block 17 can drive the cover plate 12 to be opened towards two sides, when the cover plate 12 is completely opened, the steel ball 26 is clamped at the baffle 25 and the roller 13, and the steel wire rope 16 stretches to the end.

After the sand table is used, the electric push rod 7 drives the mounting plate 8 to descend, the cover plate 12 cannot be closed, but the spring winding drum 11 rewinds the steel wire rope 16, the balancing weight 17 rises until the balancing weight butts against the bottom of the cover plate 12, then the cover plate 12 is driven to move inwards, after the spring winding drum 11 rewinds the steel wire rope 16 by the initial length, the cover plate 12 is closed, and the winding length of the steel wire rope 16 on the spring winding drum 11 is equal to the moving distance of the cover plate 12 from closing to complete opening.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a real teaching aid base of instructing of sand table that novel economics specialty teaching was used, includes bottom plate (1), its characterized in that: the novel roller-type electric wire drawing machine is characterized in that a storage battery (2) is arranged in the bottom plate (1), a sleeve (3) is arranged at the top of the bottom plate (1), a pull rod (4) is connected in the sleeve (3) in a sliding mode, an installation box (6) is arranged at the top end of the pull rod (4), an electric push rod (7) is arranged at the bottom of the installation box (6) in a penetrating mode, a mounting plate (8) is connected to the top end of the electric push rod (7), a sliding groove (23) is arranged on the outer side of the installation box (6), a cover plate (12) is connected in the sliding groove (23) in a sliding mode, fixing devices (9) are arranged on two sides of the top of the mounting plate (8), a supporting rod (10) is arranged at the top end of the supporting rod (10) and hinged to a spring winding drum (11), a steel wire rope (16) is wound on the spring winding drum (11), a, the steel wire rope is characterized in that one end of the steel wire rope (16) penetrates through the cover plate and is connected with the balancing weight (17), one end of the cover plate (12) is provided with a magnet (24), and the bottom of the installation box (6) is provided with a controller (18).

2. The novel sand table training teaching aid base for teaching of economics specialty as claimed in claim 1, wherein: fixing device (9) include screw rod (19), screw rod (19) bottom fixed connection is on mounting panel (8), around establishing spring (20) on screw rod (19), clamp plate (21) on screw rod (19) are established to spring (20) top butt cover, clamp plate (21) top is equipped with nut (22) that the cover was established on screw rod (19).

3. The novel sand table training teaching aid base for teaching of economics specialty as claimed in claim 1, wherein: the top of the sleeve (3) is provided with a threaded hole, and the sleeve (3) and the pull rod (4) are fixed through a bolt (5).

4. The novel sand table training teaching aid base for teaching of economics specialty as claimed in claim 1, wherein: the novel counter weight is characterized in that a through hole (15) is formed in the bottom of one end of the cover plate (12), the through hole (15) is of a circular structure, the counter weight block (17) is of a cylindrical structure, and the diameter of the through hole (15) is smaller than that of the counter weight block (17).

5. The novel sand table training teaching aid base for teaching of economics specialty as claimed in claim 1, wherein: steel balls (26) are fixedly arranged on the steel wire rope (16), a baffle (25) connected to the inner wall of the cover plate (12) is arranged right above the first roller (13), and the distance from the baffle (25) to the first roller (13) is smaller than the diameter of the steel balls (26).