CN204726088U - A kind of push-and-pull blackboard - Google Patents
A kind of push-and-pull blackboard Download PDFInfo
- Publication number
- CN204726088U CN204726088U CN201520218294.5U CN201520218294U CN204726088U CN 204726088 U CN204726088 U CN 204726088U CN 201520218294 U CN201520218294 U CN 201520218294U CN 204726088 U CN204726088 U CN 204726088U
- Authority
- CN
- China
- Prior art keywords
- push
- blackboard
- portable plate
- pull
- bearing wheel
- 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
Links
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a kind of push-and-pull blackboard, comprise blackboard frame and portable plate, a guide wheel assembly is connected with between described blackboard frame and portable plate, described guide wheel assembly one end and described portable plate are fixed, the other end be provided with bearing wheel, described blackboard frame is provided with the guide rail be mutually slidably matched with bearing wheel, and described guide rail is formed with the sidewall surrounding bearing wheel.Portable plate back of the present utility model is slidably matched by guide wheel assembly and blackboard frame, the surrounding of bearing wheel is formed with the sidewall surrounding bearing wheel, dust that portable plate and fixing clipboard produce in writing on the blackboard and use procedure and dust can not be dropped to inside guide rail, thus facilitate push-and-pull, and the service life of push-and-pull blackboard can be extended.
Description
Technical field
The utility model relates to and a kind of teaching aid, is specifically related to a kind of push-and-pull blackboard.
Background technology
Along with developing rapidly of national economy, be more put on agenda to the attention of science and technology and education, classroom instruction is then the approach that knowledge dissemination is the most general, and common very most regions of giving lessons adopts the form of blackboard writing on the blackboard.
Occur along with push-and-pull blackboard with universal, most schools improves and adopts push-and-pull blackboard to substitute traditional wall-body blackboard.Push-and-pull blackboard along the multidirectional movement of certain tracks, can be write conveniently, is beneficial to viewing.Existing push-and-pull blackboard is made up of blackboard frame and two fan portable plates.Portable plate can move along the groove up and down of blackboard frame.But in use, often owing to have accumulated chalk dust in groove under blackboard frame, make the transverse shifting of portable plate be obstructed, push-and-pull is inconvenient, damages blackboard frame or portable plate.Therefore, in existing technical scheme, can only be cleaned out by chalk dust by regular hand, the smooth and easy normal operation of guarantee uses.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of dust that can in use produce and dust can not drop to the bottom land up and down of blackboard frame to avoid affecting the push-and-pull blackboard of the transverse shifting of portable plate.
The technical scheme that the utility model solves the problems of the technologies described above is as follows:
A kind of push-and-pull blackboard, comprise blackboard frame and portable plate, it is characterized in that: between described blackboard frame and portable plate back, be connected with a guide wheel assembly, described guide wheel assembly one end and described portable plate back are fixed, the other end be provided with bearing wheel, described blackboard frame is provided with the guide rail be mutually slidably matched with bearing wheel, and described guide rail is formed with the sidewall surrounding bearing wheel.
Concrete, described guide wheel assembly comprises a L shape connecting plate, the bearing centre of described bearing wheel is vertically mounted on the outside on L shape connecting plate straight line limit by a spindle element, inside two right-angle sides of marginal portion, described portable plate back one and L shape connecting plate, two right-angle sides are adjacent to fixing.
For the ease of operation, facilitate push-and-pull, the front of described portable plate is provided with push and pull bar or matrix handle.
Improve as one of the present utility model, the outside of described bearing wheel is provided with shock-absorbing cushion rubber.
Preferably, described bearing wheel is formed with the U-type groove of relative circumferential outer surface toward inside circumference indent along its circumferential outer surface, and described shock-absorbing cushion rubber is nested in described U-type groove.
As shown from the above technical solution, the beneficial effects of the utility model are:
1, portable plate back of the present utility model is slidably matched by guide wheel assembly and blackboard frame, the surrounding of bearing wheel is formed with the sidewall surrounding bearing wheel, and after portable plate, dust that portable plate and fixing clipboard produce in writing on the blackboard and use procedure and dust can not be dropped to inside guide rail, thus facilitate push-and-pull, and the service life of push-and-pull blackboard can be extended.
2, push-and-pull blackboard third dimension of the present utility model and stereovision distinctness, elegant in appearance.Guide wheel assembly with shock-absorbing cushion rubber coordinates with extensible guide precision, and push-and-pull easily and not produces noise.
Accompanying drawing explanation
Fig. 1 is push-and-pull blackboard structure schematic diagram of the present utility model.
Fig. 2 is the sectional structure schematic diagram along B-B line in Fig. 1.
Fig. 3 is the partial enlarged drawing of part A in Fig. 2.
Fig. 4 is the perspective view of guide wheel assembly.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, Figure 2, Figure 3 shows, the present embodiment provides a kind of push-and-pull blackboard, comprise blackboard frame 1 and portable plate 2, a guide wheel assembly 3 is connected with between described blackboard frame 1 and portable plate 2, described guide wheel assembly 3 one end and described portable plate 2 are fixed, the other end be provided with bearing wheel 301, described blackboard frame 1 is provided with the guide rail be mutually slidably matched with bearing wheel 301, and described guide rail is formed and surrounds the sidewall of bearing wheel.To be formed the upper and lower of bearing wheel by sidewall and surround structure, the dust that clipboard produces in writing on the blackboard and use procedure and dust can not drop to inside guide rail, after more avoiding Long-Time Service blackboard frame lower groove in have accumulated a large amount of chalk dusts.
Composition graphs 3 is with shown in Fig. 4, described guide wheel assembly 3 comprises a L shape connecting plate 302, the bearing centre of described bearing wheel 301 is vertically mounted on the outside on L shape connecting plate straight line limit by a spindle element 303, inside two right-angle sides of marginal portion, described portable plate 2 back one and L shape connecting plate 302, two right-angle sides are adjacent to fixing.By said structure, L shape connecting plate is formed a fixed connection by right angle inside it and portable plate, and one end is formed by bearing wheel and guide rail and is slidably matched, and connects reliable, ensures traveling comfort.
According to the understanding of those skilled in the art, can adopt in the present embodiment and more than 2 guide wheel assemblies 3 are at least set in the bottom of blackboard frame 1, now because the chalk dust in use procedure only falls downwards under gravity, and the bottom of blackboard frame 1 can use common guide rail component; Also more than 2 guide wheel assemblies 3 can be all set in the bottom of blackboard frame 1 and top simultaneously, ensure the uniformity run up and down, easy for installation.
For the ease of operation, facilitate push-and-pull, the front of described portable plate is provided with push and pull bar or matrix handle 4.
Improve as one of the present utility model, the outside of described bearing wheel 301 is provided with shock-absorbing cushion rubber 5.By shock-absorbing cushion rubber, push-and-pull easily and not produces noise.
Conveniently assemble, described bearing wheel 301 is formed with the U-type groove of relative circumferential outer surface toward inside circumference indent along its circumferential outer surface, and described shock-absorbing cushion rubber 5 is nested in described U-type groove.
Portable plate back of the present utility model is slidably matched by guide wheel assembly and blackboard frame, the surrounding of bearing wheel is formed with the sidewall surrounding bearing wheel, dust that portable plate and fixing clipboard produce in writing on the blackboard and use procedure and dust can not be dropped to inside guide rail, thus facilitate push-and-pull, and the service life of push-and-pull blackboard can be extended.Push-and-pull blackboard and wall are fixed workpiece used and are all adopted concealed installation, not only attractive in appearance but also firm.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a push-and-pull blackboard, comprise blackboard frame and portable plate, it is characterized in that: between described blackboard frame and portable plate, be connected with a guide wheel assembly, described guide wheel assembly one end and described portable plate back are fixed, the other end be provided with bearing wheel, described blackboard frame is provided with the guide rail be mutually slidably matched with bearing wheel, and described guide rail is formed and surrounds the sidewall of bearing wheel, its maximum feature is blackboard frame, and guide rail and guide wheel assembly are all at portable plate back.
2. push-and-pull blackboard according to claim 1, it is characterized in that: described guide wheel assembly comprises a L shape connecting plate, the bearing centre of described bearing wheel is vertically mounted on the outside on L shape connecting plate straight line limit by a spindle element, inside two right-angle sides of marginal portion, described portable plate back one and L shape connecting plate, two right-angle sides are adjacent to fixing.
3. push-and-pull blackboard according to claim 1, is characterized in that: the front of described portable plate is provided with push and pull bar or matrix handle.
4. the push-and-pull blackboard according to any one of claim 1-3, is characterized in that: the outside of described bearing wheel is provided with shock-absorbing cushion rubber.
5. push-and-pull blackboard according to claim 4, is characterized in that: described bearing wheel is formed with the U-type groove of relative circumferential outer surface toward inside circumference indent along its circumferential outer surface, and described shock-absorbing cushion rubber is nested in described U-type groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520218294.5U CN204726088U (en) | 2015-04-13 | 2015-04-13 | A kind of push-and-pull blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520218294.5U CN204726088U (en) | 2015-04-13 | 2015-04-13 | A kind of push-and-pull blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204726088U true CN204726088U (en) | 2015-10-28 |
Family
ID=54384468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520218294.5U Expired - Fee Related CN204726088U (en) | 2015-04-13 | 2015-04-13 | A kind of push-and-pull blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204726088U (en) |
-
2015
- 2015-04-13 CN CN201520218294.5U patent/CN204726088U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111070945A (en) | Rail-changing type push-pull blackboard | |
| CN202088735U (en) | Novel blackboard | |
| CN210895940U (en) | Portable law foundation teaching electron show board | |
| CN204196513U (en) | Language Teaching of Senior High School servicing unit | |
| CN203937389U (en) | A kind of Multifunctional mobile blackboard | |
| CN206460680U (en) | Rotatable board of education is used in ideology and politics teaching | |
| CN204726088U (en) | A kind of push-and-pull blackboard | |
| CN206501610U (en) | A kind of novel mathematics teaching plate | |
| CN202457155U (en) | Desk | |
| CN202053776U (en) | Convenient drawing board for teaching | |
| CN204977948U (en) | Blackboard for college physics | |
| CN202685669U (en) | Movable blackboard | |
| CN206400824U (en) | A kind of language teaching is dubbed in background music device with poem recitation | |
| CN206124536U (en) | Multi -functional teaching blank moves in turn | |
| CN206058546U (en) | A kind of lifting panel for economical management teaching | |
| CN205387011U (en) | Blackboard is used in university's teaching | |
| CN204382929U (en) | A kind of primary Chinese teaching plate | |
| CN210428861U (en) | Novel interactive whiteboard | |
| CN205104109U (en) | Apparatus that physical teaching used in field | |
| CN204915005U (en) | Multifunctional blackboard | |
| CN203008430U (en) | Novel rostrum | |
| CN204117406U (en) | A kind of keyboard on computer teaching | |
| CN208411199U (en) | A kind of new type blackboard | |
| CN207676508U (en) | A kind of foreign language teaching tool | |
| CN210515696U (en) | Information technology teaching device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20151028 |