CN212724419U - Portable middle school biology teaching aid - Google Patents
Portable middle school biology teaching aid Download PDFInfo
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- CN212724419U CN212724419U CN202021400122.7U CN202021400122U CN212724419U CN 212724419 U CN212724419 U CN 212724419U CN 202021400122 U CN202021400122 U CN 202021400122U CN 212724419 U CN212724419 U CN 212724419U
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- gear
- inner cavity
- transverse plate
- top box
- teaching aid
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Abstract
The utility model discloses a portable middle school biology teaching aid, include: the top ends of the left side and the right side of the top box are provided with handles; the two sliding chutes are respectively arranged at the front end and the rear end of the left side and the right side of the inner cavity of the top box along the vertical direction; the sliding block is embedded in the inner cavity of the sliding groove, and the sliding groove extends out of the inner side of the sliding block; the first transverse plate is inserted into the inner cavity of the top box, and the front end and the rear end of the left side and the rear end of the right side of the first transverse plate are fixedly installed together with the sliding blocks at the corresponding positions; the connecting rod, two the connecting rod is fixed mounting both ends around the first diaphragm upper surface left and right sides respectively, and the top of connecting rod extends to the top horizontal plane of top case. This biological teaching aid of portable middle school can be convenient for the mr to carry the teaching aid, satisfies mr's user demand, also can carry out altitude mixture control simultaneously so that the student watches, is favorable to extensively promoting.
Description
Technical Field
The utility model relates to a biological teaching technical field specifically is a portable middle school biology teaching aid.
Background
The middle school biology teaching aid is applied to the middle school biology teaching, and the equipment tool facilitating the middle school biology teaching improves the learning interest of students through the use of the teaching aid, and facilitates the normal, rapid and efficient proceeding of the biology teaching.
However, in the existing biological teaching aid, the structure is simple, the function is single, the teacher is not convenient to carry the teaching aid, and the use requirement of the teacher cannot be met, so that a portable biological teaching aid for middle school needs to be designed,
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a biological teaching aid of portable middle school to solve the problem that the teacher of being not convenient for carries the teaching aid among the prior art at least.
In order to achieve the above object, the utility model provides a following technical scheme: a portable middle school biology teaching aid, comprising:
the top ends of the left side and the right side of the top box are provided with handles;
the two sliding chutes are respectively arranged at the front end and the rear end of the left side and the right side of the inner cavity of the top box along the vertical direction;
the sliding block is embedded in the inner cavity of the sliding groove, and the sliding groove extends out of the inner side of the sliding block;
the first transverse plate is inserted into the inner cavity of the top box, and the front end and the rear end of the left side and the rear end of the right side of the first transverse plate are fixedly installed together with the sliding blocks at the corresponding positions;
the two connecting rods are fixedly arranged at the front end and the rear end of the left side and the right side of the upper surface of the first transverse plate respectively, and the top ends of the connecting rods extend to the top horizontal plane of the top box;
the second transverse plate is fixedly arranged at the top end of the connecting rod, and the bottom end of the second transverse plate is attached to the top end of the top box to close the inner cavity of the top box;
the bottom box is fixedly arranged at the top end of the top box;
and the driving mechanism is arranged in the inner cavity of the bottom box.
Compared with the prior art, the beneficial effects of the utility model are that: the portable middle school biology teaching aid can drive the second screw rod to rotate and drive the rack to move towards the front side or towards the rear side by rotating the handle at the front side of the second screw rod, when the rack is separated from the third gear, the rotating rod and the third gear can be conveniently rotated, when the rack is in abutting engagement with the third gear, the third gear and the rotating rod can be positioned and fixed, the rotating rod, the second gear, the first gear and the first screw rod can be driven to rotate by rotating the rocker at the left side of the bottom box, the first transverse plate, the connecting rod and the second transverse plate can be driven to move upwards or downwards by the screw joint and match of the first screw rod and the first transverse plate, the first transverse plate can be driven to move upwards or downwards by rotating the first screw rod, after the first transverse plate moves to the top of the inner cavity of the top box, the teaching aid can be placed on the first transverse plate, after the first transverse plate and the second transverse plate move downwards to reset, a teacher can lift up the device by using the handles at two sides of, can put the teaching aid through the second diaphragm and demonstrate, upwards or remove downwards through the second diaphragm and can highly adjust the teaching aid to the student watches, thereby the mr of can being convenient for carries the teaching aid, satisfies mr's user demand, also can carry out altitude mixture control simultaneously so that the student watches, is favorable to extensively promoting.
Drawings
FIG. 1 is a schematic sectional view of the front view of the present invention;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1;
fig. 3 is a left side sectional structural schematic view of the bottom box of fig. 1 according to the present invention.
In the figure: 1. top case, 2, spout, 3, slider, 4, first diaphragm, 5, connecting rod, 6, second diaphragm, 7, under casing, 8, first screw rod, 9, stopper, 10, first gear, 11, bull stick, 12, second gear, 13, third gear, 14, second screw rod, 15, rack.
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.
Please refer to fig. 1-3, the present invention provides a technical solution: a portable middle school biology teaching aid, comprising: the device comprises a top box 1, a sliding chute 2, a sliding block 3, a first transverse plate 4, a connecting rod 5, a second transverse plate 6, a bottom box 7 and a driving mechanism, wherein handles are arranged at the top ends of the left side and the right side of the top box 11; the two sliding chutes 2 are respectively arranged at the front end and the rear end of the left side and the right side of the inner cavity of the top box 1 along the up-down direction; the sliding block 3 is embedded in the inner cavity of the sliding groove 2, and the sliding groove 2 extends out of the inner side of the sliding block 3; the first transverse plate 4 is inserted into the inner cavity of the top box 1, the front end and the rear end of the left side and the rear side of the first transverse plate 4 are fixedly installed with the sliding blocks 3 at corresponding positions, the first transverse plate 4 can be conveniently and stably moved in the vertical direction through the sliding grooves 2 and the sliding blocks 3, and teaching aids can be conveniently stored through the first transverse plate 4; the two connecting rods 5 are respectively and fixedly arranged at the front end and the rear end of the left side and the right side of the upper surface of the first transverse plate 4, and the top ends of the connecting rods 5 extend to the top horizontal plane of the top box 1; the second transverse plate 6 is fixedly arranged at the top end of the connecting rod 5, the bottom end of the second transverse plate 6 is tightly attached to the top end of the top box 1 to seal the inner cavity of the top box, and the teaching aid can be conveniently placed on the second transverse plate 6 during display; the bottom box 7 is fixedly arranged at the top end of the top box 1; the driving mechanism is arranged in the inner cavity of the bottom box 7, and the first transverse plate 4 can be conveniently driven to move along the up-down direction through the driving mechanism.
Preferably, the sliding groove 2 and the sliding block 3 are both arranged in a dovetail shape, so that the sliding block 3 can stably move in the inner cavity of the sliding groove 2.
Preferably, the driving mechanism further includes: the device comprises a first screw 8, a limiting block 9, a first gear 10, a rotating rod 11, a second gear 12 and a positioning assembly, wherein the two first screws 8 are respectively arranged at the left side and the right side of the bottom end of a top box 1 through bearings, the first screws 8 are positioned in an inner cavity of a bottom box 7, the top ends of the first screws 8 penetrate through the top box 1 to extend out of a first transverse plate 4, the first screws 8 are in threaded connection with the first transverse plate 4, and the first transverse plate 4 is driven to move upwards or downwards when the first screws 8 rotate through the threaded connection and matching of the first screws 8 and the first transverse plate 4; the limiting block 9 is fixedly arranged at the top end of the first screw rod 8, and the first transverse plate 4 can be conveniently limited by the limiting block 9 so as to be prevented from being separated from the first screw rod 8; the first gear 10 is in interference fit with the bottom end of the outer wall of the first screw 8, and the first gear 10 is positioned in the inner cavity of the bottom box 7; the left end and the right end of the rotating rod 11 are arranged at the central positions of the left side and the right side of the inner cavity of the bottom box 7 along the left-right direction through bearings, the rocker is inserted at the left side of the top box 1, and the rocker is fixedly arranged with the rotating rod 11 at the corresponding position; the second gear 12 is in interference fit with the outer wall of the rotating rod 11, and the second gear 12 is meshed with the first gear 10; the positioning assembly is arranged in the inner cavity of the bottom box 7, and the rotating rod 11 can be conveniently positioned and fixed through the positioning assembly.
As a preferred scheme, furthermore, the two second gears 12 are disposed in the same direction and located at the lower right of the first gear 10, so that when the two second gears 12 rotate in the same direction at the same time, the two first gears 10 and the first screw 8 can be driven to rotate in the same direction at the same time.
Preferably, the positioning assembly further comprises: the third gear 13, the second screw 14 and the rack 15 are in interference fit with the outer wall of the rotating rod 11; the second screw 14 is screwed in the center of the front side of the inner cavity of the bottom box 7, a handle extends out of the bottom box 7 from the front side of the second screw 14, and the second screw 14 can move to the front side or the rear side while rotating through the screwed fit of the second screw 14 and the bottom box 7; the rack 15 is installed at the rear end of the second screw 14 through a bearing, the rack 15 is tightly abutted against the outer wall of the third gear 13 and meshed with the third gear, and the third gear 13 and the rotating rod 11 can be conveniently positioned and fixed through the matching of the rack 15 and the third gear 13.
Preferably, the upper end and the lower end of the rack 15 are respectively attached to the bottom end of the top box 1 and the bottom end of the inner cavity of the bottom box 7, so that the rack 15 is limited and can stably move in the front-back direction.
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 in use, the handle at the front side of the second screw 14 is rotated to rotate, the second screw 14 can be moved forwards while rotating under the screw joint matching of the second screw 14 and the bottom box 7, the second screw 14 drives the rack 15 to move forwards to be separated from the third gear 13, at the moment, the rocker at the left side of the rotating base 7 can drive the rotating rod 11 and the second gear 12 to rotate, under the meshing matching of the second gear 12 and the first gear 10, the second gear 12 can drive the first gear 10 and the first screw 8 to rotate simultaneously while rotating, under the screw joint matching of the first screw 8 and the first transverse plate 4, the connecting rod 5 and the second transverse plate 6 can be driven to move upwards when the first screw 8 rotates, the second transverse plate 6 is gradually lifted, the height of the second transverse plate 6 can be lowered when the rocker is rotated in the opposite direction, when the first transverse plate 4 moves upwards to the left and right of the top of the inner cavity of the top box 1, the teacher can place the teaching aid on the first transverse plate 4, the rocker is rotated in the opposite direction, the first transverse plate 4, the connecting rod 5 and the second transverse plate 6 move downwards to reset, so that the teaching aid is stored on the first transverse plate 4 in the inner cavity of the top box 1, the handles on two sides of the top box 1 can be lifted up to be carried to a classroom, when the teaching aid is needed, the rocker is rotated again, the first transverse plate 4 drives the teaching aid to be exposed from the inner cavity of the top box 1, the teaching aid can be taken out and placed on the second transverse plate 6 for demonstration and teaching, the rocker is rotated in the opposite direction to adjust the heights of the second transverse plate 6 and the demonstrated teaching aid so as to be convenient for students to watch, after the adjustment is finished, the handle on the front side of the second screw 14 is rotated in the opposite direction, the second screw 14 and the rack 15 move towards the rear side, so that the rack 15 is tightly pressed on the third gear 13, the rack 15 positions and fixes the third gear 13, make first diaphragm 4 and second diaphragm 6 stable fixed, the device compact structure, reasonable in design can be convenient for the mr to carry the teaching aid, easy operation, convenient to use.
Claims (6)
1. The utility model provides a portable middle school biology teaching aid which characterized in that: the method comprises the following steps:
the top box (1), the top ends of the left side and the right side of the top box (1) are provided with handles;
the two sliding chutes (2) are respectively arranged at the front end and the rear end of the left side and the right side of the inner cavity of the top box (1) along the vertical direction;
the sliding block (3) is embedded in the inner cavity of the sliding groove (2), and the sliding groove (2) extends out of the inner side of the sliding block (3);
the first transverse plate (4) is inserted into the inner cavity of the top box (1), and the front end and the rear end of the left side and the rear side of the first transverse plate (4) are fixedly installed together with the sliding blocks (3) in the corresponding positions;
the two connecting rods (5) are respectively and fixedly arranged at the front end and the rear end of the left side and the right side of the upper surface of the first transverse plate (4), and the top ends of the connecting rods (5) extend to the top horizontal plane of the top box (1);
the second transverse plate (6) is fixedly arranged at the top end of the connecting rod (5), and the bottom end of the second transverse plate (6) is tightly attached to the top end of the top box (1) to seal the inner cavity of the top box;
the bottom box (7), the said bottom box (7) is fixedly mounted on the top of the top box (1);
the driving mechanism is arranged in the inner cavity of the bottom box (7).
2. A portable middle school biology teaching aid according to claim 1, wherein: the sliding groove (2) and the sliding block (3) are both arranged in a dovetail shape.
3. A portable middle school biology teaching aid according to claim 2, wherein: the drive mechanism includes:
the two first screw rods (8) are respectively arranged on the left side and the right side of the bottom end of the top box (1) through bearings, the first screw rods (8) are positioned in the inner cavity of the bottom box (7), the top ends of the first screw rods (8) penetrate through the top box (1) to extend out of the first transverse plate (4), and the first screw rods (8) are in threaded connection with the first transverse plate (4);
the limiting block (9), the limiting block (9) is fixedly installed at the top end of the first screw rod (8);
the first gear (10) is in interference fit with the bottom end of the outer wall of the first screw (8), and the first gear (10) is located in the inner cavity of the bottom box (7);
the left end and the right end of the rotating rod (11) are installed at the center positions of the left side and the right side of the inner cavity of the bottom box (7) along the left-right direction through bearings, a rocker is inserted into the left side of the top box (1), and the rocker is fixedly installed with the rotating rod (11) at the corresponding position;
the second gear (12), the second gear (12) is in interference fit with the outer wall of the rotating rod (11), and the second gear (12) is meshed with the first gear (10);
the positioning component is arranged in the inner cavity of the bottom box (7).
4. A portable middle school biology teaching aid according to claim 3, wherein: two second gear (12) all are the syntropy setting, and all are located the right side below of first gear (10).
5. A portable middle school biology teaching aid according to claim 4, wherein: the positioning assembly comprises:
the third gear (13), the said third gear (13) interference fit is in the outer wall centre position of the rotary bar (11);
the second screw (14) is in threaded connection with the center of the front side of the inner cavity of the bottom box (7), and a handle extends out of the bottom box (7) from the front side of the second screw (14);
and the rack (15) is arranged at the rear end of the second screw (14) through a bearing, and the rack (15) is tightly propped against the outer wall of the third gear (13) and is meshed with the third gear.
6. A portable middle school biology teaching aid according to claim 5, wherein: the upper end and the lower end of the rack (15) are respectively attached to the bottom end of the top box (1) and the bottom end of the inner cavity of the bottom box (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021400122.7U CN212724419U (en) | 2020-07-15 | 2020-07-15 | Portable middle school biology teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021400122.7U CN212724419U (en) | 2020-07-15 | 2020-07-15 | Portable middle school biology teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212724419U true CN212724419U (en) | 2021-03-16 |
Family
ID=74906260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021400122.7U Expired - Fee Related CN212724419U (en) | 2020-07-15 | 2020-07-15 | Portable middle school biology teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212724419U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113129698A (en) * | 2021-04-26 | 2021-07-16 | 日照职业技术学院 | Multifunctional mathematical teaching equipment |
| CN113333849A (en) * | 2021-06-11 | 2021-09-03 | 含山县大力精密机械有限公司 | A accurate location feed lathe for stainless steel foundry goods |
-
2020
- 2020-07-15 CN CN202021400122.7U patent/CN212724419U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113129698A (en) * | 2021-04-26 | 2021-07-16 | 日照职业技术学院 | Multifunctional mathematical teaching equipment |
| CN113333849A (en) * | 2021-06-11 | 2021-09-03 | 含山县大力精密机械有限公司 | A accurate location feed lathe for stainless steel foundry goods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210316 Termination date: 20210715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |