CN209842957U

CN209842957U - Sample show shelf is used in biological teaching of high school

Info

Publication number: CN209842957U
Application number: CN201822067189.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Liang Zhichuan
Current assignee: Hangxinda Technology Engineering (Shaoguan) Co.,Ltd.
Priority date: 2018-12-11
Filing date: 2018-12-11
Publication date: 2019-12-24
Anticipated expiration: 2028-12-11

Abstract

The utility model discloses a sample show shelf for high school's biological teaching, including support frame and gyro wheel, the gyro wheel has all been welded in the bottom four corners of support frame, the top welding of support frame has the rectangle case of no top cap structure, the opening has been seted up to the front side of rectangle case, the spout has all been seted up along the fore-and-aft direction to the inner chamber left and right sides central point of rectangle case position, the inner chamber of spout is embedded to have the slider, the inner chamber of spout has the cylinder that runs through mutually with the slider along the welding of fore-and-aft direction, first spring has been cup jointed to the cylindrical outer wall. This sample show shelf for biological teaching of high school need not to lay a plurality of samples simultaneously and demonstrates on the show shelf, and area that has not only significantly reduced when explaining a certain sample, avoids the student to watch other samples and leads to the inattention, can realize watching the sample detail of less size moreover, has improved student's learning efficiency, is favorable to extensively promoting.

Description

Sample show shelf is used in biological teaching of high school

Technical Field

The utility model relates to a high school's biological teaching technical field specifically is a sample show shelf is used in high school's biological teaching.

Background

In biological teaching, the introduction and demonstration of biological specimens are needed for understanding the relevant knowledge of the biological subject, which is helpful for the absorption of the knowledge of students in the learning process, the common demonstration is to place the biological specimens on a display rack for display teaching, but the prior specimen display rack lays a plurality of specimens on the display rack together for display, the occupied area is large, when a certain specimen is explained, because the specimens are more, the students can easily watch other specimens, the attention of the students is not concentrated, and the details of the specimens with smaller sizes are difficult to watch, thereby greatly reducing the learning efficiency of the students and being not beneficial to wide popularization.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sample show shelf is used in biological teaching of high school to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a specimen display rack for high school biology teaching comprises a support frame and rollers, wherein the rollers are welded at four corners of the bottom of the support frame, a rectangular box without a top cover structure is welded at the top end of the support frame, an opening is formed in the front side of the rectangular box, sliding grooves are formed in the center positions of the left side and the right side of an inner cavity of the rectangular box along the front-back direction, sliding blocks are embedded in the inner cavity of the sliding grooves, a cylinder penetrating through the sliding blocks is welded in the front-back direction of the inner cavity of the sliding grooves, a first spring is sleeved on the outer wall of the cylinder, the front end and the rear end of the first spring are respectively clamped with the sliding blocks and the rectangular box, the inner cavity of the sliding blocks extends out of the sliding grooves, a push plate connecting the two sliding blocks is welded on the inner side of the sliding blocks, a circular groove is formed in the center position of the bottom end of the front side of the rectangular box, an arc-, the outer wall of bull stick is seted up the through-hole that link up from top to bottom, the inner chamber of through-hole is pegged graft and is had the second spring, the equal joint in upper and lower both ends of second spring has the ball, and partly external force effect downwardly extending of second spring of ball extends to the inner chamber of arc wall, the circular slot is extended to the front end of bull stick, the outer wall front end interference fit of bull stick has the connecting plate, and the top screw connection of connecting plate has the magnifying glass.

Preferably, the number of the arc-shaped grooves is two, and the two arc-shaped grooves are on the same vertical plane.

Preferably, the upper surface of the push plate is obliquely arranged.

Preferably, the area of the round ball extending to the inner cavity of the arc-shaped groove is smaller than half of the area of the round ball.

Preferably, the magnifier is located at the center of the front side of the through opening.

Compared with the prior art, the beneficial effects of the utility model are that: the specimen display rack for high school biology teaching, 1, through the cooperation of the push pedal, the slide block and the first spring, the specimen frame to be displayed specimen can be inserted into the inner cavity of the rectangular box from the front to the back in sequence from the gap between the top push pedal of the rectangular box and the front side of the inner cavity of the rectangular box, and the specimen frame is clamped and fixed in the inner cavity of the rectangular box, when the teacher finishes explaining the most front specimen, the specimen frame is drawn out from the top end of the rectangular box, the first spring can lose external force to drive the rest specimen frames to move forwards to replace in sequence, and the drawn specimen frame is inserted into the inner cavity of the rectangular box again from the gap between the most rear specimen frame and the push pedal, so as to analogize, the specimen can be displayed for students, a plurality of specimens are not required to be laid on the display rack to be displayed at the same time, the floor area is greatly reduced, when one specimen is explained, the phenomenon that the attention of students is not concentrated due to watching other specimens is avoided;

2. when needs are watched the sample of less size, can watch the sample through the magnifying glass, when need not to enlargeing the sample, rotate the magnifying glass, through the cooperation between second spring, ball, the arc wall, can make the magnifying glass drive the bull stick and rotate 180 degrees backs and fix automatically to can realize watching the sample detail of less size, improve student's learning efficiency, be favorable to extensively promoting.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the rectangular box of the present invention;

FIG. 3 is an enlarged schematic view of the A-position of the present invention

FIG. 4 is a schematic view of the cross-sectional structure of the rectangular box of the present invention

Fig. 5 is a schematic view of the three-dimensional structure of the push plate of the present invention.

In the figure: 1. the support frame, 2, gyro wheel, 3, rectangle case, 4, opening, 5, spout, 6, slider, 7, cylinder, 8, first spring, 9, push pedal, 10, circular slot, 11, arc wall, 12, bull stick, 13, through-hole, 14, second spring, 15, ball, 16, connecting plate, 17, magnifying glass.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a specimen display rack for high school biology teaching comprises a support frame 1 and rollers 2, wherein the rollers 2 are welded at four corners of the bottom end of the support frame 1, a rectangular box 3 without a top cover structure is welded at the top end of the support frame 1, an opening 4 is formed in the front side of the rectangular box 3, a specimen placed in an inner cavity of the rectangular box 3 can be conveniently studied and watched through the opening 4, sliding grooves 5 are formed in the center positions of the left side and the right side of the inner cavity of the rectangular box 3 along the front-back direction, sliding blocks 6 are embedded in the inner cavity of the sliding grooves 5, a cylinder 7 penetrating through the sliding blocks 6 is welded in the front-back direction of the inner cavity of the sliding grooves 5, a first spring 8 is sleeved on the outer wall of the cylinder 7, the first spring 8 is a compression spring, the elastic coefficient of the first spring 8 is 18N/CM, the first spring 8 generates elastic deformation after being stretched or extruded, and recovers to an initial state after external force is removed, the, the first spring 8 can be limited through the cylinder 7, the first spring 8 is prevented from being deviated when being compressed by the sliding block 6, the inner side of the sliding block 6 extends out of an inner cavity of the sliding groove 5, the pushing plate 9 which connects the two sliding blocks 6 is welded on the inner side of the sliding block 6, the pushing plate 9 can conveniently and stably move through the matching of the sliding groove 5 and the sliding block 6, a specimen frame which is placed in the inner cavity of the rectangular box 3 can be conveniently clamped and fixed through the pushing plate 9, a circular groove 10 is arranged at the center of the bottom end of the front side of the rectangular box 3, an arc-shaped groove 11 is arranged on the circumference of the inner wall of the circular groove 10, a rotating rod 12 which can rotate around the axis of the rotating rod is hinged on the rear side of the inner cavity of the circular groove 10, a through hole 13 which is vertically communicated is arranged on the outer wall of the rotating rod 12, a second spring 14 is inserted into the inner cavity of the through hole 13, the second spring 14 is a, get rid of and resume to initial condition after external force, the equal joint in upper and lower both ends of second spring 14 has ball 15, and a part of ball 15 extends to the inner chamber of arc wall 11 under the exogenic action of second spring 14, can make things convenient for ball 15 to push second spring 14 to the inboard removal through-hole 13, and make ball 15 and arc wall 11 separation, cooperation through ball 15 and arc wall 11, can realize fixing bull stick 12, the front end of bull stick 12 extends circular slot 10, the outer wall front end interference fit of bull stick 12 has connecting plate 16, and the top screw connection of connecting plate 16 has magnifying glass 17.

Preferably, the number of the arc-shaped slots 11 is two, and the two arc-shaped slots 11 are on the same vertical plane, so that the magnifying lens 17 can be fixed relative to the vertical direction of the arc-shaped slots 11.

Preferably, the upper surface of the push plate 9 is inclined, so that when the specimen frame is inserted into the gap between the push plate 9 and the front side of the inner cavity of the rectangular box 3, the specimen frame pushes the push plate 9 to move towards the rear side.

Preferably, the area of the round ball 15 extending into the inner cavity of the arc-shaped groove 11 is less than half of the area of the round ball 15, and when the magnifying glass 17 is rotated to make the through hole 13 not correspond to the arc-shaped groove 11, the round ball 15 can move towards the inner cavity of the through hole 13.

Preferably, the magnifying lens 17 is located at the center of the front side of the through hole 4, so that the specimen in the specimen frame located at the foremost end of the rectangular box 3 can be magnified and viewed.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

When the device is needed to be used, firstly, a teacher inserts a specimen frame which is provided with a specimen to be displayed from the front to the back in sequence from the top end of the rectangular box 3, and inserts the specimen frame into the inner cavity of the rectangular box 3 through a gap between the push plate 9 and the front side of the inner cavity of the rectangular box 3, when the specimen frame is inserted, the specimen frame is contacted with the top end inclined plane of the push plate 9, under the matching of the specimen frame and the inclined plane at the top end of the push plate 9, the specimen frame can be inserted into the inner cavity of the rectangular box 3 downwards, the push plate 9 is pushed to move towards the rear side, the push plate 9 drives the sliding block 6 to move towards the rear side, the sliding block 6 extrudes the first spring 8, the first spring 8 is deformed under the stress, so that the specimen frame can be inserted into the inner cavity of the rectangular box 3, the push plate 9 clamps and fixes the specimen frame in the inner cavity of the rectangular box 3 under the external force of the first spring 8, when the device is needed to be used for showing students, the students can directly watch the samples in the sample frame at the front end through the through hole 4, after the explanation of the samples at the front end is finished, the sample frame is drawn out from the top end of the rectangular box 3, at the moment, the first spring 8 loses external force and drives the push plate 9 to push the residual sample frame forwards, so that the sample frame at the front end in the residual is moved to the position of the original drawn sample frame for replacing, then the drawn sample frame is reinserted into the gap between the sample frame at the back end and the push plate 9, the drawn sample frame pushes the push plate 9 backwards, the sample frame which is conveniently drawn out is reinserted into the rear end of the inner cavity of the rectangular box 3, the floor area is greatly reduced, meanwhile, when the samples with small sizes are watched through the magnifier 17, when the samples do not need to be amplified, the magnifier 17 is pushed anticlockwise, make magnifying glass 17 drive bull stick 12 anticlockwise rotation through connecting plate 16, bull stick 12 is when rotating, ball 15 moves to the inboard, and extrude second spring 14, ball 15 supports on the outer wall of circular slot 10 this moment, when magnifying glass 17 rotates 180 degrees, arc 11 and through-hole 13 are corresponding, under second spring 14's exogenic action, second spring 14 flicks ball 15 to the inner chamber of arc 11, and block bull stick 12 and fix, the device easy operation, high durability and convenient use, be convenient for student's the viewing.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated 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; also, unless expressly stated or limited otherwise, the terms "snap" and "pivot" and "snap" and "weld" and "screw" are to be construed broadly, e.g., as a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sample show shelf is used in biological teaching of high school, includes support frame (1) and gyro wheel (2), its characterized in that have all been welded in the bottom four corners of support frame (1): the top welding of support frame (1) has the rectangle case (3) of no top cap structure, opening (4) have been seted up to the front side of rectangle case (3), spout (5) have all been seted up along the fore-and-aft direction to the inner chamber left and right sides central point of rectangle case (3), the inner chamber of spout (5) is embedded to have slider (6), the inner chamber of spout (5) has cylinder (7) that run through with slider (6) along the fore-and-aft direction welding, the outer wall of cylinder (7) has cup jointed first spring (8), both ends are respectively with slider (6) and rectangle case (3) looks joint around first spring (8), the inner chamber of spout (5) extends to the inboard of slider (6), the inboard welding of slider (6) has push pedal (9) that link to each other two sliders (6), the front side bottom central point of rectangle case (3) puts and has seted up circular slot (10), arc wall (11) have been seted up to the inner wall circumference of circular slot (10), the inner chamber rear side hub connection of circular slot (10) has can be around self axis pivoted bull stick (12), through-hole (13) that link up from top to bottom are seted up to the outer wall of bull stick (12), the inner chamber of through-hole (13) is pegged graft and is had second spring (14), the equal joint in upper and lower both ends of second spring (14) has ball (15), and partly external force effect downwardly extending of second spring (14) of ball (15) to the inner chamber of arc wall (11), the front end of bull stick (12) extends circular slot (10), the outer wall front end interference fit of bull stick (12) has connecting plate (16), and the top screw connection of connecting plate (16) has magnifying glass (17).

2. The specimen display stand for high school biology teaching according to claim 1, wherein: the number of the arc-shaped grooves (11) is two, and the two arc-shaped grooves (11) are on the same vertical plane.

3. The specimen display stand for high school biology teaching according to claim 1, wherein: the upper surface of the push plate (9) is obliquely arranged.

4. The specimen display stand for high school biology teaching according to claim 1, wherein: the area of the inner cavity of the arc-shaped groove (11) extended by the round ball (15) is smaller than half of the area of the round ball (15).

5. The specimen display stand for high school biology teaching according to claim 1, wherein: the magnifier (17) is positioned at the center of the front side of the through hole (4).