CN210077093U - Show blank that mathematics classroom was used - Google Patents
Show blank that mathematics classroom was used Download PDFInfo
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- CN210077093U CN210077093U CN201920336708.2U CN201920336708U CN210077093U CN 210077093 U CN210077093 U CN 210077093U CN 201920336708 U CN201920336708 U CN 201920336708U CN 210077093 U CN210077093 U CN 210077093U
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Abstract
The utility model discloses a show blank that mathematics classroom was used, including base and show board, the universal wheel is installed respectively in the four corners of base bottom, the both sides on base top are fixedly connected with rectangular plate respectively, the spout that is used for carrying out the position to the show board and injects is offered respectively on the top of two rectangular plate one sides, the middle part on base top is equipped with the adjusting device who is used for adjusting show board height, the show board, the both ends of show board respectively with the inside sliding connection of two spouts, two sides of the positive bottom of show board are equipped with the supporting shoe respectively, the both sides of supporting shoe are provided with the fixing device who is used for fixed show board respectively. This show blank that mathematics classroom was used through adjusting device, makes the rising or the decline height-adjusting that show the board can be relaxed to under stop device's effect, make the show board can not make the threaded rod rotate because of the dead weight, and then descend, stability is high, thereby has arrived the convenient and firm purpose of the show blank lift that mathematics classroom was used.
Description
Technical Field
The utility model relates to an educational apparatus field specifically is a show blank that mathematics classroom was used.
Background
The white board is a writing plane made of a common white metal plate material, has the effect similar to that of a blackboard, is a writing tool capable of being repeatedly erased and written, is generally used for teaching, conference discussion or personal and family note keeping, can be divided into a single-sided white board and a double-sided white board according to the classification of properties, and can be divided into a wall-hung suspension type and a belt frame moving type according to the use mode.
At present, lecturer often can use the show blank to write the content of giving lessons on the mathematics classroom, traditional show blank is through rotatory bolt and mobilizable lifter in close contact with, reach the blank behind the fixed adjustment height, this kind of mode is convenient nevertheless tightly relies on the static friction power between bolt and the movable rod to fix the blank though adjusting, under long-time the use, the bolt also can become flexible, the blank easily slides, the lift mode is insecure, and the blank is connected through a plurality of fixing bolt and the lifter of activity, consequently, when the blank damages the need of changing, need dismantle and install a plurality of fixing bolt, the process is complicated, be not convenient for change the blank. Therefore, the display white board for the mathematical classroom is provided.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model relates to a show blank that mathematics classroom was used, including base and show board, the universal wheel is installed respectively in the four corners of base bottom, the both sides difference fixedly connected with rectangular plate on base top, two the spout that is used for carrying out the position to the show board and injects is offered respectively to the top of rectangular plate one side, the middle part on base top is equipped with the adjusting device who is used for adjusting the show board height, the show board, the both ends of show board respectively with the inside sliding connection of two spouts, two sides of the positive bottom of show board are equipped with the supporting shoe respectively, the both sides of supporting shoe are provided with the fixing device who is used for fixed show board respectively.
As a preferred technical scheme of the utility model, adjusting device comprises support, threaded rod, fixed block, movable block, fly leaf, the inside rectangular block and the stop device that are located the supporting shoe that set up on base top, the top of support is provided with the threaded rod, the middle part of threaded rod is equipped with stop device, the both ends of threaded rod are equipped with the fixed block respectively, two the back of fixed block is connected with the positive bottom of two rectangular plates respectively, the both sides of threaded rod have cup jointed the movable block, two through the external screw thread respectively the top of movable block articulates respectively has the fly leaf, two the tip of fly leaf articulates respectively has the rectangular block.
As a preferred technical scheme of the utility model, stop device is by worm wheel, worm, the round bar of setting inside the support and the hand turn round that is used for driving the round bar, the one end of round bar is connected with the hand turn round that is located the support outside, the middle part of round bar is equipped with the worm, the outer worm wheel that is used for driving threaded rod that has along the meshing of worm, the worm wheel sets up the middle part at the threaded rod.
As a preferred technical scheme of the utility model, fixing device include draw-in groove, reset spring and with the down tube of draw-in groove joint, the top in rectangular block one side is seted up to the draw-in groove, the down tube sets up the one side at the supporting shoe, the outside of down tube is provided with the reset spring who is located the supporting shoe outside.
As a preferred technical scheme of the utility model, the both sides of threaded rod are all seted up threadedly, and threaded direction of rotation is opposite on the threaded rod both sides.
The utility model has the advantages that:
1. this show blank that mathematics classroom was used through adjusting device, makes the rising or the decline height-adjusting that show the board can be relaxed to under stop device's effect, make the show board can not make the threaded rod rotate because of the dead weight, and then descend, stability is high, thereby has arrived the convenient and firm purpose of the show blank lift that mathematics classroom was used.
2. This show blank that mathematics classroom was used, through fixing device, what make the supporting shoe can relax is together fixed with the rectangular block or with the rectangular block separation, has made things convenient for the installation and the dismantlement of show board, and then harms when the show board, is convenient for change the show board to the show blank that has reached the mathematics classroom and is convenient for change the purpose of show board.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a display whiteboard for a mathematical classroom of the present invention;
fig. 2 is a schematic top view of a display whiteboard for a mathematical classroom according to the present invention;
fig. 3 is a schematic view of the support structure of the display whiteboard for the mathematical classroom of the present invention.
In the figure: 1. a base; 2. a universal wheel; 3. a rectangular plate; 4. a chute; 5. a display board; 6. a support; 7. a threaded rod; 8. a fixed block; 9. a movable block; 10. a movable plate; 11. a rectangular block; 12. a round bar; 13. a hand wheel; 14. a worm; 15. a worm gear; 16. a support block; 17. a diagonal bar; 18. a return spring; 19. a clamping groove.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example (b): as shown in fig. 1, fig. 2 and fig. 3, the utility model relates to a show blank that mathematics classroom was used, including base 1 and show board 5, universal wheel 2 is installed respectively in the four corners of base 1 bottom, the both sides on base 1 top are connected with rectangular plate 3 respectively, the spout 4 that is used for carrying out the position to show board 5 and injects is offered respectively on the top of 3 one sides of two rectangular plates, the middle part on base 1 top is equipped with the adjusting device who is used for adjusting show board 5 height, show board 5's both ends respectively with the inside sliding connection of two spout 4, two sides of show board 5 positive bottom are equipped with supporting shoe 16 respectively, the both sides of supporting shoe 16 are provided with the fixing device who is used for fixed show board 5 respectively.
Wherein, the adjusting device is composed of a bracket 6 arranged at the top end of the base 1, a threaded rod 7, a fixed block 8, a movable block 9, a movable plate 10, a rectangular block 11 positioned inside a supporting block 16 and a limiting device, the top end of the bracket 6 is provided with the threaded rod 7, the middle part of the threaded rod 7 is provided with the limiting device, two ends of the threaded rod 7 are respectively provided with the fixed block 8, the back surfaces of the two fixed blocks 8 are respectively connected with the front bottom ends of the two rectangular plates 3, two sides of the threaded rod 7 are respectively sleeved with the movable block 9 through external threads, the top ends of the two movable blocks 9 are respectively hinged with the movable plates 10, the end parts of the two movable plates 10 are respectively hinged with the rectangular block 11, the display plate 5 can easily ascend or descend to adjust the height through the adjusting device, and under the action of the limiting device, the display plate, thereby the purpose that the display white board used in the mathematics classroom is convenient and firm to lift is achieved.
Wherein, stop device is by worm wheel 15, worm 14, set up round bar 12 inside support 6 and the hand rotary wheel 13 that is used for driving round bar 12, the one end of round bar 12 is connected with the hand rotary wheel 13 that is located support 6 outside, the middle part of round bar 12 is equipped with worm 14, the outer edge meshing of worm 14 has the worm wheel 15 that is used for driving threaded rod 7, worm wheel 15 sets up the middle part at threaded rod 7, through stop device, make threaded rod 7 can not rotate because of the dead weight of show board 5 when needs rotate, and then make show board 5 descend.
Wherein, fixing device includes draw-in groove 19, reset spring 18 and the down tube 17 with draw-in groove 19 joint, the top in 11 one sides of rectangular block is seted up to draw-in groove 19, down tube 17 sets up the one side at supporting shoe 16, the outside of down tube 17 is provided with the reset spring 18 that is located the supporting shoe 16 outside, through fixing device, make supporting shoe 16 can relax fix together with rectangular block 11 or with the separation of rectangular block 11, the installation and the dismantlement of show board 5 have been made things convenient for, and then harm when show board 5, be convenient for change show board 5, thereby reached the show blank that mathematics classroom used and be convenient for change the purpose of show board 5.
Wherein, the both sides of threaded rod 7 are all seted up threadedly, and threaded direction of rotation is opposite on the threaded rod 7 both sides, has guaranteed that threaded rod 7 when rotating, and two movable blocks 9 can be close to each other or keep away from each other.
When the display board is in operation, firstly, the display white board for a math classroom is moved to a required position, according to the use condition, the hand rotating wheel 13 is rotated clockwise or anticlockwise, the hand rotating wheel 13 drives the worm 14 to rotate through the round rod 12, the worm 14 drives the threaded rod 7 to rotate through the worm wheel 15, so that the two movable blocks 9 are close to or away from each other, the two movable blocks 9 drive the two rectangular blocks 11 to ascend or descend through the two movable plates 10, the two rectangular blocks 11 drive the display board 5 to ascend or descend through the fixing device and the supporting block 16, after the height value of the display board 5 is adjusted, the hand rotating wheel 13 is stopped to rotate, when the display board 5 needs to be replaced, the four inclined rods 17 are pulled outwards, so that the four inclined rods 17 are separated from the two supporting blocks 16, the display board 5 is lifted, the display board 5 is taken out from the insides of the two sliding chutes 4, and a new display, then, the two rectangular blocks 11 are respectively placed in the two supporting blocks 16, the two rectangular blocks 11 respectively push the four inclined rods 17 along with the entering of the two rectangular blocks 11, and after the top ends of the two rectangular blocks 11 are respectively contacted with the top ends of the two supporting blocks 16, the four inclined rods 17 are respectively inserted into the four clamping grooves 19 under the restoring force of the four return springs 18 to fix the display board 5.
Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A display white board for a mathematical classroom, which comprises a base (1) and a display board (5), it is characterized in that four corners of the bottom end of the base (1) are respectively provided with a universal wheel (2), the two sides of the top end of the base (1) are respectively and fixedly connected with a rectangular plate (3), the top end of one side of the two rectangular plates (3) is respectively provided with a sliding chute (4) for limiting the position of the display plate (5), the middle part of the top end of the base (1) is provided with an adjusting device for adjusting the height of the display board (5), the two ends of the display board (5) are respectively connected with the insides of the two sliding grooves (4) in a sliding way, two sides of the front bottom end of the display board (5) are respectively provided with a supporting block (16), and fixing devices for fixing the display board (5) are respectively arranged on two sides of the supporting block (16).
2. A presentation whiteboard for a mathematical classroom according to claim 1, the adjusting device consists of a bracket (6) arranged at the top end of the base (1), a threaded rod (7), a fixed block (8), a movable block (9), a movable plate (10), a rectangular block (11) positioned inside a supporting block (16) and a limiting device, a threaded rod (7) is arranged at the top end of the bracket (6), a limiting device is arranged in the middle of the threaded rod (7), two ends of the threaded rod (7) are respectively provided with a fixed block (8), the back surfaces of the two fixed blocks (8) are respectively connected with the bottom ends of the front surfaces of the two rectangular plates (3), the two sides of the threaded rod (7) are respectively sleeved with a movable block (9) through external threads, the top ends of the movable blocks (9) are respectively hinged with a movable plate (10), and the end portions of the movable plates (10) are respectively hinged with a rectangular block (11).
3. The display whiteboard for the mathematics classroom according to claim 2, characterized in that said limiting device is composed of a worm wheel (15), a worm (14), a round bar (12) arranged inside the bracket (6) and a hand wheel (13) for driving the round bar (12), one end of the round bar (12) is connected with the hand wheel (13) positioned outside the bracket (6), the middle of the round bar (12) is provided with the worm (14), the outer edge of the worm (14) is engaged with the worm wheel (15) for driving the threaded rod (7), and the worm wheel (15) is arranged in the middle of the threaded rod (7).
4. The display whiteboard for a mathematical classroom according to claim 1, wherein the fixing device comprises a slot (19), a return spring (18) and a diagonal rod (17) clamped with the slot (19), the slot (19) is arranged at the top end of one side of the rectangular block (11), the diagonal rod (17) is arranged at one side of the supporting block (16), and the return spring (18) outside the supporting block (16) is arranged outside the diagonal rod (17).
5. A presentation whiteboard for a mathematical classroom according to claim 2 wherein the threaded rod (7) is threaded on both sides and the threads on both sides of the threaded rod (7) are rotated in opposite directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920336708.2U CN210077093U (en) | 2019-03-18 | 2019-03-18 | Show blank that mathematics classroom was used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920336708.2U CN210077093U (en) | 2019-03-18 | 2019-03-18 | Show blank that mathematics classroom was used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210077093U true CN210077093U (en) | 2020-02-18 |
Family
ID=69471970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920336708.2U Expired - Fee Related CN210077093U (en) | 2019-03-18 | 2019-03-18 | Show blank that mathematics classroom was used |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210077093U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112205751A (en) * | 2020-07-27 | 2021-01-12 | 重庆工程职业技术学院 | A podium for teaching |
| CN113205727A (en) * | 2021-04-07 | 2021-08-03 | 山东交通学院 | Classical case display device of applied mathematics |
-
2019
- 2019-03-18 CN CN201920336708.2U patent/CN210077093U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112205751A (en) * | 2020-07-27 | 2021-01-12 | 重庆工程职业技术学院 | A podium for teaching |
| CN113205727A (en) * | 2021-04-07 | 2021-08-03 | 山东交通学院 | Classical case display device of applied mathematics |
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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: 20200218 Termination date: 20210318 |