CN210324814U - Projection whiteboard for teaching - Google Patents
Projection whiteboard for teaching Download PDFInfo
- Publication number
- CN210324814U CN210324814U CN201921025348.0U CN201921025348U CN210324814U CN 210324814 U CN210324814 U CN 210324814U CN 201921025348 U CN201921025348 U CN 201921025348U CN 210324814 U CN210324814 U CN 210324814U
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- CN
- China
- Prior art keywords
- connecting rod
- teaching
- whiteboard
- rod
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of education model technique and specifically relates to a projection blank is used in teaching. The technical scheme of utility model is realized like this: the utility model provides a teaching is with projection blank, includes a blank, its characterized in that: a supporting part is arranged on the lower side edge of the white board; the supporting part comprises an installation block, a support rod, a connecting rod and an installation seat; the mounting block is fixed on the lower side edge of the whiteboard, and one end of the supporting rod is detachably connected with the mounting block; one end of the connecting rod is provided with three through holes, and the connecting rod passes through the three-way hole and is sleeved on the support rod; the end face of the other end of the connecting rod is fixedly connected with the upper surface of the mounting seat; the bottom of the mounting seat is provided with a magnetic part; the back surface of the white board is provided with a supporting component. The utility model discloses an usability is strong, easily promotes.
Description
Technical Field
The utility model belongs to the technical field of education model technique and specifically relates to a projection blank is used in teaching.
Background
In the optical learning content of middle school, the light pinhole imaging phenomenon is a very important learning content, and in the teaching process, a projection white board is required to be used for collecting images formed by pinhole imaging; the existing projection white board realizes that the white board is erected on a platform in a mode of installing a plurality of bases at the bottom of the white board;
however, most teachers like to teach the blackboard, the existing projection white board is inconvenient to fix on the blackboard, and can be fixed on the blackboard only by help of foreign objects, so that the use is very convenient;
secondly, the teaching whiteboard in the prior art is easy to incline and topple when standing upright, and is inconvenient to use.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a projection blank is used in teaching.
The technical scheme of the utility model is realized like this: the utility model provides a teaching is with projection blank, includes a blank, its characterized in that: a supporting part is arranged on the lower side edge of the white board; the supporting part comprises an installation block, a support rod, a connecting rod and an installation seat; the mounting block is fixed on the lower side edge of the whiteboard through a plurality of evenly distributed bolts, and one end of the supporting rod is detachably connected with the mounting block; one end of the connecting rod is provided with three through holes, and the connecting rod passes through the three-way hole and is sleeved on the support rod; the end face of the other end of the connecting rod is fixedly connected with the upper surface of the mounting seat; the bottom of the mounting seat is provided with a magnetic part; the magnetic part comprises a magnet frame and a magnet; the magnet frame is detachably mounted on the bottom surface of the mounting seat, and one surface of the magnet frame, which is far away from the mounting seat, is detachably connected with the magnet; the back surface of the white board is provided with a supporting component; the support assembly comprises a longitudinal slide rail detachably mounted on the whiteboard, a sliding block arranged on the longitudinal slide rail in a sliding manner, and a support rod; the sliding block is provided with a rotating block which is rotationally connected with the sliding block; the rotating block is provided with two raised heads, and a rotating shaft is arranged between the two raised heads; the support rod is rotatably arranged with the rotating shaft.
Preferably: a plurality of mounting grooves are formed in the side wall of one end, close to the base, of the connecting rod; and a balancing weight is detachably mounted in the mounting groove.
Preferably: and the front surface of the white board is provided with scale marks.
Preferably: the surface of blank is equipped with the transparent film that is used for preventing the scale mark damage.
Preferably: and a screw rod in threaded connection with the connecting rod is installed on the side hole of the three through holes.
Compared with the prior art, the utility model discloses the beneficial effect who brings does: by arranging the supporting part, when a teacher needs to perform small-hole imaging experiment demonstration, the connecting rod on the supporting part is sleeved on the supporting rod, the base on the connecting rod is placed on the platform, so that the white board is erected, and the white board can be adsorbed on the blackboard through the magnet on the base, so that the teacher can conveniently perform teaching; secondly, a supporting component is arranged on the back of the whiteboard, a sliding block on the supporting component can slide on a longitudinal sliding rail to slide to a proper position, and then the supporting rod is rotated to a proper position through a rotating block until the end part of the supporting rod can be contacted with the surface of the platform, so that the whiteboard is supported, and the whiteboard is prevented from inclining;
1. a plurality of mounting grooves are formed in the side wall of one end, close to the base, of the connecting rod; the mounting groove is internally and detachably provided with a balancing weight, so that the white board is further prevented from inclining;
2. the scale marks are arranged on the front side of the white board, so that the conditions of image amplification and image reduction of the small hole forming can be more visually represented, and the teaching demonstration effect is improved;
3. the transparent film is adhered on the surface of the white board, so that the white board can be prevented from being damaged;
4. the screw rod connected with the connecting rod in a threaded manner is installed on the side hole of the three-way hole, the position of the supporting rod in the three-way hole can be fixed through the adjusting screw rod, and the supporting rod position can be conveniently adjusted according to the use environment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic structural view of an embodiment of the present invention;
fig. 2 is a rear view of fig. 1.
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 efforts belong to the protection scope of the present invention.
As shown in fig. 1-2, the present invention discloses a projection whiteboard for teaching, which comprises a whiteboard 1, in the embodiment of the present invention, a supporting portion 2 is arranged on the lower side of the whiteboard 1; the supporting part 2 comprises a mounting block 21, a support rod 22, a connecting rod 23 and a mounting seat 24; the mounting block 21 is fixed on the lower side edge of the whiteboard 1 through a plurality of evenly distributed bolts 25, and one end of the supporting rod 22 is detachably connected with the mounting block 21; one end of the connecting rod 23 is provided with three through holes 26, and the connecting rod 23 passes through the three through holes 26 and is sleeved on the supporting rod 22; the end face of the other end of the connecting rod 23 is fixedly connected with the upper surface of the mounting seat 24; the bottom of the mounting seat 24 is provided with a magnetic part 3; the magnetic part 3 includes a magnet frame 31 and a magnet 32; the magnet frame 31 is detachably mounted on the bottom surface of the mounting seat 24, and one surface, far away from the mounting seat 24, of the magnet frame 31 is detachably connected with the magnet 32; a supporting component 4 is arranged on the back surface of the white board 1; the supporting component comprises a longitudinal slide rail 41 which is detachably arranged on the whiteboard 1, a sliding block 42 which is arranged on the longitudinal slide rail 41 in a sliding way, and a supporting rod 43; the sliding block 42 is provided with a rotating block 44 which is rotatably connected with the sliding block; two raised heads 45 are arranged on the rotating block 44, and a rotating shaft 46 is arranged between the two raised heads 45; the support rod 43 is rotatably disposed with the rotation shaft 46.
In the specific embodiment of the present invention, a plurality of mounting grooves 5 are formed on the side wall of one end of the connecting rod 23 close to the base; and a balancing weight 6 is detachably arranged in the mounting groove 5.
In the embodiment of the present invention, the front surface of the whiteboard 1 is provided with scale marks 11.
In the embodiment of the present invention, the surface of the white board 1 is provided with a transparent film for preventing the scale mark 11 from being damaged.
In the embodiment of the present invention, the screw 7 threadedly connected to the connecting rod 23 is installed in the side hole of the three through holes 26.
Compared with the prior art, the utility model discloses the beneficial effect who brings does: by arranging the supporting part, when a teacher needs to perform small-hole imaging experiment demonstration, the connecting rod on the supporting part is sleeved on the supporting rod, the base on the connecting rod is placed on the platform, so that the white board is erected, and the white board can be adsorbed on the blackboard through the magnet on the base, so that the teacher can conveniently perform teaching; secondly, a supporting component is arranged on the back of the whiteboard, a sliding block on the supporting component can slide on a longitudinal sliding rail to slide to a proper position, and then the supporting rod is rotated to a proper position through a rotating block until the end part of the supporting rod can be contacted with the surface of the platform, so that the whiteboard is supported, and the whiteboard is prevented from inclining;
1. a plurality of mounting grooves are formed in the side wall of one end, close to the base, of the connecting rod; the mounting groove is internally and detachably provided with a balancing weight, so that the white board is further prevented from inclining;
2. the scale marks are arranged on the front side of the white board, so that the conditions of image amplification and image reduction of the small hole forming can be more visually represented, and the teaching demonstration effect is improved;
3. the transparent film is adhered on the surface of the white board, so that the white board can be prevented from being damaged;
4. the screw rod connected with the connecting rod in a threaded manner is installed on the side hole of the three-way hole, the position of the supporting rod in the three-way hole can be fixed through the adjusting screw rod, and the supporting rod position can be conveniently adjusted according to the use environment.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a teaching is with projection blank, includes a blank, its characterized in that: a supporting part is arranged on the lower side edge of the white board; the supporting part comprises an installation block, a support rod, a connecting rod and an installation seat; the mounting block is fixed on the lower side edge of the whiteboard through a plurality of evenly distributed bolts, and one end of the supporting rod is detachably connected with the mounting block; one end of the connecting rod is provided with three through holes, and the connecting rod passes through the three-way hole and is sleeved on the support rod; the end face of the other end of the connecting rod is fixedly connected with the upper surface of the mounting seat; the bottom of the mounting seat is provided with a magnetic part; the magnetic part comprises a magnet frame and a magnet; the magnet frame is detachably mounted on the bottom surface of the mounting seat, and one surface of the magnet frame, which is far away from the mounting seat, is detachably connected with the magnet; the back surface of the white board is provided with a supporting component; the support assembly comprises a longitudinal slide rail detachably mounted on the whiteboard, a sliding block arranged on the longitudinal slide rail in a sliding manner, and a support rod; the sliding block is provided with a rotating block which is rotationally connected with the sliding block; the rotating block is provided with two raised heads, and a rotating shaft is arranged between the two raised heads; the support rod is rotatably arranged with the rotating shaft.
2. A projection whiteboard for teaching as claimed in claim 1, wherein: a plurality of mounting grooves are formed in the side wall of one end, close to the base, of the connecting rod; and a balancing weight is detachably mounted in the mounting groove.
3. A projection whiteboard for teaching as claimed in claim 1, wherein: and the front surface of the white board is provided with scale marks.
4. A projection whiteboard for teaching as claimed in claim 1, wherein: the surface of blank is equipped with the transparent film that is used for preventing the scale mark damage.
5. A projection whiteboard for teaching as claimed in claim 1, wherein: and a screw rod in threaded connection with the connecting rod is installed on the side hole of the three through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921025348.0U CN210324814U (en) | 2019-07-03 | 2019-07-03 | Projection whiteboard for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921025348.0U CN210324814U (en) | 2019-07-03 | 2019-07-03 | Projection whiteboard for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210324814U true CN210324814U (en) | 2020-04-14 |
Family
ID=70148221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921025348.0U Expired - Fee Related CN210324814U (en) | 2019-07-03 | 2019-07-03 | Projection whiteboard for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210324814U (en) |
-
2019
- 2019-07-03 CN CN201921025348.0U patent/CN210324814U/en not_active Expired - Fee Related
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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: 20200414 Termination date: 20210703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |