CN211694101U - Geometric projection device for advanced math teaching - Google Patents
Geometric projection device for advanced math teaching Download PDFInfo
- Publication number
- CN211694101U CN211694101U CN202020175840.2U CN202020175840U CN211694101U CN 211694101 U CN211694101 U CN 211694101U CN 202020175840 U CN202020175840 U CN 202020175840U CN 211694101 U CN211694101 U CN 211694101U
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- threaded rod
- box body
- upper side
- fixed
- box
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Abstract
The utility model discloses a geometric projection device for advanced mathematics teaching, which comprises a box body, a bottom plate is arranged at the lower side in the box body, a chute is horizontally arranged at the left and right directions of the upper side of the bottom plate, a fixed block is fixed at the central position of the upper side of the bottom plate, the fixed block is rotationally connected with a threaded rod in a bilateral symmetry way, a movable block is meshed at the middle part of the threaded rod through threads, the threaded rod runs through the side wall of the box body and is rotationally connected with the side wall of the box body, a rotary sleeve is arranged, a sliding block is fixed at the lower end of the connecting rod, the sliding block slides in the sliding groove, a supporting rod is hinged at the upper side of the movable block, the upper end of the supporting rod is hinged with a mounting plate, the upper side of the mounting plate is provided with a projector, the upper side of the box body is provided with a box door, the front side, the rear side, the left side and the right side of the box door are respectively provided with a lock catch, and the middle part of the upper side of the box door is provided with a bracelet; the utility model has the advantages of simple structure, safety, practicality, quick adjustment, convenient operation and portability.
Description
Technical Field
The utility model belongs to the technical field of the teaching auxiliary assembly, in particular to higher mathematics teaching is with geometric projection arrangement.
Background
Teaching tool makes the student can be directly perceived, the general name of the apparatus that all kinds of utensil and teacher that the vivid understanding teaching content used gave lessons and used, the teaching aid can play supplementary teaching's effect, improve student's interest in learning through the teaching aid, richen perceptual knowledge, help forms clear and definite notion, develop student's observation ability and thinking ability, and the often used projection arrangement of teaching, generally fixed mounting, portable, can't use geometry projection arrangement to the classroom that does not have projection arrangement, this kind of device is adjusted and is convenient nimble inadequately simultaneously, and after using, can not pack up it, make it expose in the air, lead to the dust to get into the camera lens, influence its life, easy foreign object is touched simultaneously, cause physical damage.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a higher mathematics teaching is with geometric projection arrangement, have simple structure, safe practical, adjust advantage quick, convenient operation, portable.
In order to achieve the above object, the utility model provides a following technical scheme: a geometric projection device for advanced mathematics teaching comprises a box body, wherein a bottom plate is arranged on the lower side in the box body, a chute is horizontally arranged in the left-right direction of the upper side of the bottom plate, a fixed block is fixed at the central position of the upper side of the bottom plate, the fixed block is connected with a threaded rod in a bilaterally symmetrical manner, a movable block is meshed with the middle part of the threaded rod through threads, the threaded rod penetrates through the side wall of the box body and is connected with the side wall of the box body in a rotating manner, a rotary sleeve is arranged at the outer end of the threaded rod, a connecting rod is fixed on the lower side of the movable block, a sliding block is fixed at the lower end of the connecting rod and slides in the chute, a supporting rod is hinged on the upper side of the movable block, a mounting plate is hinged at the upper, the middle of the upper side of the box door is provided with a bracelet.
Preferably, the rotating sleeve is fixedly connected with the threaded rod.
Preferably, the rotating sleeve is made of rubber materials.
Preferably, the position where the threaded rod is connected with the box body is provided with a shaft seat for supporting the rotation of the threaded rod.
Preferably, the inner end of the threaded rod is provided with a bearing for supporting the rotation shaft thereof.
Preferably, the middle part of the movable block is provided with a threaded hole meshed with the threaded rod.
Preferably, the projector is fixedly mounted on the upper side of the mounting plate.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model discloses a threaded rod, the height of projecting apparatus can be adjusted to movable block and bracing piece, simultaneously pass through, it is rotatory simultaneously through the differential of two threaded rods, adjust the rotation angle of projecting apparatus, this kind of mode makes convenient operation swift, be provided with slider and spout through the below at the movable block, it is rotatory to avoid the movable block to take place, avoid the mounting panel to take place the slope, thereby pack the stability of projecting apparatus, through setting up the chamber door at the box upside, can close it after using, thereby avoid the dust to get into the projecting apparatus, the box can protect the projecting apparatus simultaneously, avoid the projecting apparatus to expose in the air, touch by the foreign object, thereby cause the damage.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the present invention in use.
Fig. 3 is a left side view of the movable block of the present invention.
In the figure: 1. the box, 2, bottom plate, 3, spout, 4, fixed block, 5, threaded rod, 6, movable block, 7, connecting rod, 8, slider, 9, swivel sleeve, 10, bracing piece, 11, mounting panel, 12, projecting apparatus, 13, chamber door, 14, bracelet, 15, hasp, 16, screw hole.
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. 1-3, the embodiment provides a geometric projection device for advanced mathematics teaching, which includes a box body 1, a bottom plate 2 is arranged on the lower side inside the box body 1, a sliding chute 3 is horizontally arranged on the upper side of the bottom plate 2 in the left-right direction, a fixed block 4 is fixed at the center position of the upper side of the bottom plate 2, the fixed block 4 is rotationally connected with a threaded rod 5 in a bilateral symmetry manner, a movable block 6 is meshed with the middle part of the threaded rod 5 through threads, the threaded rod 5 penetrates through the side wall of the box body 1 and is rotationally connected with the side wall of the box body 1, a rotary sleeve 9 is arranged at the outer end of the threaded rod 5, a connecting rod 7 is fixed on the lower side of the movable block 6, a sliding block 8 is fixed at the lower end of the connecting rod 7, the sliding block 8 slides inside the, 1 upside of box is provided with chamber door 13, and hasp 15 is all installed on front side, rear side, left side and the right side of chamber door 13, and chamber door 13 is connected with box 1 through hasp 15, 13 upside middle parts of chamber door are provided with bracelet 14.
In order to be able to rotate the threaded rod 5 by rotating the rotary sleeve 9, in the present embodiment, it is preferable that the rotary sleeve 9 and the threaded rod 5 are fixedly connected.
In order to make the rotating sleeve 9 feel better and make the rotating sleeve 9 more comfortable when rotating, in this embodiment, it is preferable that the rotating sleeve 9 is made of a rubber material.
In order to support the rotation of the threaded rod 5, in the present embodiment, it is preferable that a position where the threaded rod 5 is connected to the casing 1 is provided with a bearing for supporting the rotation thereof.
In order to support the rotation of the threaded rod 5, in the present embodiment, it is preferable that the inner end of the threaded rod 5 is provided with a bearing for supporting the rotation thereof.
In order to drive the movable block 6 to move left and right along the threaded rod 5 by rotating the threaded rod 5, in the embodiment, it is preferable that a threaded hole 16 engaged with the threaded rod 5 is formed in the middle of the movable block 6.
In order to fix the projector 12, in the present embodiment, it is preferable that the projector 12 is fixedly mounted on the upper side of the mounting plate 11.
The utility model discloses a theory of operation: when the box is used, firstly, the lock catch 15 is opened, then the box door 13 is opened, the rotating sleeves 9 on the left side and the right side of the box body 1 are respectively held by two pairs, the rotating sleeves 9 are rotated, the rotating sleeves 9 drive the threaded rod 5 to rotate, the movable block 6 meshed with the threaded rod 5 through threads moves along with the movement, the movable block 6 moves towards the inner side of the threaded rod 5, the movable block 6 drives the lower ends of the supporting rods 10 to move inwards, the upper ends of the two supporting rods 10 are hinged with the mounting plate 11, the mounting plate 11 is pushed to move upwards, the projector 12 is pushed out of the box body 13, when the rotating sleeves 9 continue to rotate, the height of the projector 12 can be adjusted, when the number of the rotating rings of the two rotating sleeves 9 is the same, the mounting plate 11 and the projector 12 are in a horizontal state, when the number of the rotating rings of the left rotating sleeve 9 and the right rotating sleeve 9 of the box body 1 are different, the, this kind of mode, convenient and fast, after finishing using, reverse rotation swivel mount 9, mounting panel 11 and projecting apparatus 12 will move down, get back to box 1 again in, box 1 can play the guard action to the projecting apparatus, then pins chamber door 13 and box 1 through hasp 15, is convenient for mention box 1 through bracelet 14, thereby increases the utility model discloses a portability has improved the utility model discloses an usability.
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 (7)
1. The utility model provides a higher mathematics teaching is with geometry projection arrangement, includes the box, its characterized in that: a bottom plate is arranged at the lower side in the box body, a sliding chute is horizontally arranged at the left and right direction of the upper side of the bottom plate, a fixed block is fixed at the center position of the upper side of the bottom plate, the fixed blocks are connected with threaded rods in a bilateral symmetry rotating manner, the middle parts of the threaded rods are engaged with the movable blocks through threads, the threaded rod penetrates through the side wall of the box body and is rotationally connected with the side wall of the box body, the outer end of the threaded rod is provided with a rotary sleeve, a connecting rod is fixed at the lower side of the movable block, a sliding block is fixed at the lower end of the connecting rod and slides in the sliding groove, a support rod is hinged on the upper side of the movable block, an installation plate is hinged on the upper end of the support rod, a projector is arranged on the upper side of the installation plate, the box upside is provided with the chamber door, and the hasp is all installed on front side, rear side, left side and the right side of chamber door, and the chamber door passes through the hasp to be connected with the box, chamber door upside middle part is provided with the bracelet.
2. The geometric projection apparatus for advanced math teaching as set forth in claim 1, wherein: the rotary sleeve is fixedly connected with the threaded rod.
3. The geometric projection apparatus for advanced math teaching as set forth in claim 2, wherein: the rotating sleeve is made of rubber materials.
4. The geometric projection apparatus for advanced math teaching as set forth in claim 1, wherein: and a shaft seat for supporting the rotation of the threaded rod is arranged at the position where the threaded rod is connected with the box body.
5. The geometric projection apparatus for advanced math teaching according to claim 4, wherein: the inner end of the threaded rod is provided with a bearing for supporting the rotation shaft.
6. The geometric projection apparatus for advanced math teaching as set forth in claim 1, wherein: and a threaded hole meshed with the threaded rod is formed in the middle of the movable block.
7. The geometric projection apparatus for advanced math teaching as set forth in claim 1, wherein: the projector is fixedly arranged on the upper side of the mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020175840.2U CN211694101U (en) | 2020-02-17 | 2020-02-17 | Geometric projection device for advanced math teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020175840.2U CN211694101U (en) | 2020-02-17 | 2020-02-17 | Geometric projection device for advanced math teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211694101U true CN211694101U (en) | 2020-10-16 |
Family
ID=72775557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020175840.2U Expired - Fee Related CN211694101U (en) | 2020-02-17 | 2020-02-17 | Geometric projection device for advanced math teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211694101U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551114A (en) * | 2021-07-26 | 2021-10-26 | 安徽工程大学 | Projection arrangement is used in visual transmission design |
| CN116221582A (en) * | 2023-05-08 | 2023-06-06 | 西安诚安测控科技有限公司 | Radar detection device |
-
2020
- 2020-02-17 CN CN202020175840.2U patent/CN211694101U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551114A (en) * | 2021-07-26 | 2021-10-26 | 安徽工程大学 | Projection arrangement is used in visual transmission design |
| CN116221582A (en) * | 2023-05-08 | 2023-06-06 | 西安诚安测控科技有限公司 | Radar detection device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201016 Termination date: 20210217 |