CN203995294U - A kind of push-and-pull blackboard - Google Patents
A kind of push-and-pull blackboard Download PDFInfo
- Publication number
- CN203995294U CN203995294U CN201420395708.7U CN201420395708U CN203995294U CN 203995294 U CN203995294 U CN 203995294U CN 201420395708 U CN201420395708 U CN 201420395708U CN 203995294 U CN203995294 U CN 203995294U
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- China
- Prior art keywords
- blackboard
- framework
- push
- mounting table
- connecting rod
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- Expired - Fee Related
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- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
A kind of push-and-pull blackboard, comprise framework, the upper and lower two ends of framework inwall arrange respectively two push/pull slots that are parallel to each other along its length, the first blackboard and the second blackboard are slidably installed respectively in two push/pull slots, the first blackboard is positioned at second blackboard the place ahead, on the first blackboard and the second blackboard sidewall, blackboard handle is all installed, and illuminating lamp is installed on framework top, gauge tap is installed in framework, and illuminating lamp is connected with gauge tap; Mounting table is installed in framework lower end, and several drawers are set on mounting table, and drawer handle is all installed on drawer, and mounting table one side is installed dust bag, and mounting table opposite side is installed several hooks.The utility model has the advantage of: in the utility model, in framework lower end, mounting table is set, conveniently stores teaching aid and be difficult for again hindering student's sight line.On framework top, illuminating lamp is set, direct projection is to blackboard above blackboard to make light, and refraction angle is large, makes the student who is sitting in both sides, classroom avoid blackboard reflective light puzzlement.
Description
Technical field
The utility model relates to blackboard, specifically a kind of push-and-pull blackboard.
Background technology
Blackboard is one of apparatus important in teaching, existing blackboard is comprised of frame and plate face substantially, and this blackboard exists following deficiency in the process of using: common blackboard does not have the function of storing teaching aid, store for convenience teaching aid, can only before blackboard, place lectern, easily hinder student's sight line; Do not there is illumination functions, by indoor light, tilted be radiated on blackboard time, often there is reflective phenomenon, to being sitting in the student of both sides, classroom, cause harmful effect.
Utility model content
For addressing the above problem, the purpose of this utility model is to provide a kind of push-and-pull blackboard, makes it both can store teaching aid, possesses again illumination functions.
The utility model for achieving the above object, be achieved through the following technical solutions: a kind of push-and-pull blackboard, comprise framework, the upper and lower two ends of framework inwall arrange respectively two push/pull slots that are parallel to each other along its length, the first blackboard and the second blackboard are slidably installed respectively in two push/pull slots, the first blackboard is positioned at second blackboard the place ahead, on the first blackboard and the second blackboard sidewall, blackboard handle is all installed, framework one side arranges blackboard eraser, blackboard eraser has box body and the first hairbrush, box body hollow, box body one side opening, box opening one side coordinates installs cover plate, on box body opposite side sidewall, evenly offer several connecting holes, the sidewall that box body is offered connecting hole one side is connected with the first hairbrush, illuminating lamp is installed on framework top, and gauge tap is installed in framework, and illuminating lamp is connected with gauge tap, mounting table is installed in framework lower end, and several drawers are set on mounting table, and drawer handle is all installed on drawer, and mounting table one side is installed dust bag, and mounting table opposite side is installed several hooks.
For further realizing the purpose of this utility model, can also be by the following technical solutions: the chute of arc is offered in described framework bottom, the circle centre position of chute arranges fixed axis, the first connecting plate and the second connecting plate are installed respectively on fixed axis, the second connecting plate one side is installed the second hairbrush, the length of the second hairbrush is identical with the width of the first blackboard and the second blackboard, the first block and the second block are installed respectively in the first connecting plate and the second connecting plate lower end, on the sidewall of framework lower end, offer link slot, holding tank is offered in framework bottom, holding tank is vertical with chute with link slot and communicate respectively, connecting rod is set in link slot, connecting rod one end arranges inclined-plane, the connecting rod other end stretches out link slot, connecting rod middle part arranges limited block, link slot arranged outside boss, the first spring is set between boss and limited block, the first spring fitting is on connecting rod and all the time to outside pulling force of connecting rod, holding tank bottom is fixedly connected with the second spring, on the second spring, be fixedly connected with one end of baffle plate, the other end of baffle plate stretches out holding tank and is positioned at chute, and the second spring is given thrust of baffle plate all the time, holddown groove is offered at baffle plate middle part, and the inclined-plane on connecting rod is positioned at holddown groove one side, described chute is quadrant shape, 90 ° of the angle α < between described the first connecting plate and the second connecting plate.
The utility model has the advantage of: in the utility model, in framework lower end, mounting table is set, conveniently stores teaching aid and be difficult for again hindering student's sight line.On framework top, illuminating lamp is set, direct projection is to blackboard above blackboard to make light, and refraction angle is large, makes the student who is sitting in both sides, classroom avoid blackboard reflective light puzzlement.The utility model also has advantages of compactness simple for structure, cheap for manufacturing cost and easy to use.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation; Fig. 2 is the left view of Fig. 1; Fig. 3 is the A-A line cutaway view Amplified image along Fig. 1; Fig. 4 is that the B of Fig. 1 is to enlarged drawing; Fig. 5 is the another kind of state diagram of Fig. 3; Fig. 6 is that the C of Fig. 3 is to enlarged drawing; Fig. 7 is that the D of Fig. 6 is to view.
Reference numeral: 1 first blackboard 2 blackboard eraser 3 illuminating lamp 4 push/pull slot 5 gauge tap 6 dust bag 7 drawer handle 8 drawer 9 mounting table 10 hook 11 box body 12 framework 13 blackboard handle 14 second blackboard 15 first connecting plate 16 second connecting plate 17 second hairbrush 18 fixed axis 19 chute 20 first block 21 second block 22 holding tank 23 baffle plate 24 connecting rod 25 link slot 26 limited block 27 first spring 28 second spring 29 holddown groove 30 first hairbrush 31 cover plate 32 connecting hole 33 inclined-plane 34 projections.
The specific embodiment
A kind of push-and-pull blackboard, comprise framework 12, the framework 12 upper and lower two ends of inwall arrange respectively two push/pull slots that are parallel to each other 4 along its length, two interior the first blackboard 1 and the second blackboards 14 of being slidably installed respectively of push/pull slot 4, the first blackboard 1 is positioned at second blackboard 14 the place aheads, on the first blackboard 1 and the second blackboard 14 sidewalls, blackboard handle 13 is all installed.This structure can be slided along push/pull slot 4 the first blackboard 1 and the second blackboard 14, increased the write area of teacher on blackboard, while avoiding student to take passages on blackboard content, teacher has to written contents before to be wiped because write area on blackboard is limited, facilitates student and teacher to use.Framework 12 1 sides arrange blackboard eraser 2, blackboard eraser 2 has box body 11 and the first hairbrush 30, box body 11 hollows, box body 11 1 side openings, box body 11 opening one sides coordinate installs cover plate 31, on box body 11 opposite side sidewalls, evenly offer several connecting holes 32, the sidewall that box body 11 is offered connecting hole 32 1 sides is connected with the first hairbrush 30.This structure can be when being used blackboard eraser 2, dust by the first hairbrush 30, on blackboard, brushed under after, by connecting hole 32, enter box body 11, greatly reduce the discharge of dust.Box body 11 opening one sides coordinate installs cover plate 31, and this structure makes to fill after dust in box body 11, can raise cover plate 31 dust is discharged.Illuminating lamp 3 is installed on framework 12 tops, and gauge tap 5 is installed in framework 12, and illuminating lamp 3 is connected with gauge tap 5.This structure makes the light of illuminating lamp 3, and above blackboard, direct projection is to blackboard, and refraction angle is large, makes the student who is sitting in both sides, classroom avoid blackboard reflective light puzzlement.Mounting table 9 is installed in framework 12 lower ends, and several drawers 8 are set on mounting table 9, and drawer handle 7 is all installed on drawer 8.This structure is conveniently stored teaching aid and is difficult for again hindering student's sight line.Mounting table 9 one sides are installed dust bag 6, the convenient dust of collecting in blackboard eraser 2.Mounting table 9 opposite sides are installed several hooks 10.Hook 10 can be hung towel, rag etc., simple to operate, practical, has better met the teachers and students' of school demand.
In order to facilitate teachers and students to clear up fast the writing on blackboard, make short classmate also the writing on blackboard top can be wiped clean simultaneously, the chute 19 of arc is offered in described framework 12 bottoms, the circle centre position of chute 19 arranges fixed axis 18, the first connecting plate 15 and the second connecting plate 16 are installed respectively on fixed axis 18, the second connecting plate 16 1 sides are installed the second hairbrush 17, the length of the second hairbrush 17 is identical with the width of the first blackboard 1 and the second blackboard 14, the first block 20 and the second block 21 are installed respectively in the first connecting plate 15 and the second connecting plate 16 lower ends, on framework 12 lower end sidewalls, offer link slot 25, holding tank 22 is offered in framework 12 bottoms, holding tank 22 is vertical with chute 19 with link slot 25 and communicate respectively, the interior connecting rod 24 that arranges of link slot 25, connecting rod 24 one end arrange inclined-plane 33, connecting rod 24 other ends stretch out link slot 25, connecting rod 24 middle parts arrange limited block 26, link slot 25 arranged outside boss 34, the first spring 27 is set between boss 34 and limited block 26, the first spring 27 is arranged on connecting rod 24 and all the time to 24 1 outside pulling force of connecting rod, holding tank 22 bottoms are fixedly connected with the second spring 28, on the second spring 28, be fixedly connected with one end of baffle plate 23, the other end of baffle plate 23 stretches out holding tank 22 and is positioned at chute 19, the second spring 28 is given 23 1 thrusts of baffle plate all the time, holddown groove 29 is offered at baffle plate 23 middle parts, and the inclined-plane 33 on connecting rod 24 is positioned at holddown groove 29 1 sides.This structure only need to be pressed connecting rod 24 and just the second hairbrush 17 can be contacted with blackboard with promotion the first connecting plate 15, pass through again push-and-pull blackboard repeatedly, thereby make teachers and students can clear up fast the writing on blackboard, make short classmate also the writing on blackboard top can be wiped clean simultaneously.While not needing to clear up blackboard, the second block 21 of the second connecting plate 16 lower ends touches mutually with baffle plate 23, and the second block 21 cannot move by chute 19.In the time of need to clearing up blackboard, press connecting rod 24, the pulling force that makes connecting rod 24 overcome the first spring 27 moves inward.Holddown groove 29 on baffle plate 23 moves along the inclined-plane 33 on connecting rod 24, and baffle plate 23 overcomes the thrust of the second spring 28, makes baffle plate 23 enter holding tank 22 completely.At this moment, inwardly promote the first connecting plate 15, make the first block 20 on the first connecting plate 15 enter chute 19 and pass through after holding tank 22, unclamp connecting rod 24, connecting rod 24 is outwards moved under the pulling force effect of the first spring 27, baffle plate 23 stretches out holding tank 22 thereupon and enters chute 19 under the thrust of the second spring 28, thereby the first block 20 and the second block 21 are fixed in chute 19, now the second hairbrush 17 and blackboard touch mutually, through push-and-pull blackboard repeatedly, and can be by the writing cleaning on blackboard.
For saving space, avoid the first connecting plate 15 and the second connecting plate 16 by teachers and students' collsion damage, described chute 19 is quadrant shape, 90 ° of the angle α < between described the first connecting plate 15 and the second connecting plate 16.This structure makes the first connecting plate 15 and the second connecting plate 16 when idle, takes up room little, and convenient making and installation, avoids the first connecting plate 155 and the second connecting plate 16 by teachers and students' collsion damage.
Front and back described in the utility model, the position relationship such as upper and lower, inside and outside are as shown in the figure.
The technical solution of the utility model is not restricted in the scope of embodiment described in the utility model.The utility model not technology contents of detailed description is known technology.
Claims (3)
1. a push-and-pull blackboard, it is characterized in that: comprise framework (12), the upper and lower two ends of framework (12) inwall arrange respectively two push/pull slots that are parallel to each other (4) along its length, the first blackboard (1) and the second blackboard (14) are slidably installed respectively in two push/pull slots (4), the first blackboard (1) is positioned at the second blackboard (14) the place ahead, on the first blackboard (1) and the second blackboard (14), blackboard handle (13) is all installed, framework (12) one sides arrange blackboard eraser (2), blackboard eraser (2) has box body (11) and the first hairbrush (30), box body (11) hollow, box body (11) one side openings, box body (11) opening one side coordinates installs cover plate (31), on box body (11) opposite side sidewall, evenly offer several connecting holes (32), the sidewall that box body (11) is offered connecting hole (32) one sides is connected with the first hairbrush (30), illuminating lamp (3) is installed on framework (12) top, the upper gauge tap (5) of installing of framework (12), and illuminating lamp (3) is connected with gauge tap (5), mounting table (9) is installed in framework (12) lower end, several drawers (8) are set on mounting table (9), drawer handle (7) is all installed on drawer (8), and mounting table (9) one sides are installed dust bag (6), and mounting table (9) opposite side is installed several hooks (10).
2. a kind of push-and-pull blackboard according to claim 1, it is characterized in that: the chute (19) of arc is offered in described framework (12) bottom, the circle centre position of chute (19) arranges fixed axis (18), the first connecting plate (15) and the second connecting plate (16) are installed respectively on fixed axis (18), the second connecting plate (16) one sides are installed the second hairbrush (17), the length of the second hairbrush (17) is identical with the width of the first blackboard (1) and the second blackboard (14), the first block (20) and the second block (21) are installed respectively in the first connecting plate (15) and the second connecting plate (16) lower end, on the sidewall of framework (12) lower end, offer link slot (25), holding tank (22) is offered in framework (12) bottom, holding tank (22) is vertical with chute (19) with link slot (25) and communicate respectively, connecting rod (24) is set in link slot (25), connecting rod (24) one end arranges inclined-plane (33), connecting rod (24) other end stretches out link slot (25), connecting rod (24) middle part arranges limited block (26), link slot (25) arranged outside boss (34), between boss (34) and limited block (26), the first spring (27) is set, it is upper also all the time to (24) outside pulling force of connecting rod that the first spring (27) is arranged on connecting rod (24), holding tank (22) bottom is fixedly connected with the second spring (28), on the second spring (28), be fixedly connected with one end of baffle plate (23), the other end of baffle plate (23) stretches out holding tank (22) and is positioned at chute (19), the second spring (28) is given (23) thrusts of baffle plate all the time, holddown groove (29) is offered at baffle plate (23) middle part, and the inclined-plane (33) on connecting rod (24) is positioned at holddown groove (29) one sides.
3. a kind of push-and-pull blackboard according to claim 2, is characterized in that: described chute (19) is quadrant shape, 90 ° of the angle α < between described the first connecting plate (15) and the second connecting plate (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420395708.7U CN203995294U (en) | 2014-07-17 | 2014-07-17 | A kind of push-and-pull blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420395708.7U CN203995294U (en) | 2014-07-17 | 2014-07-17 | A kind of push-and-pull blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203995294U true CN203995294U (en) | 2014-12-10 |
Family
ID=52035349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420395708.7U Expired - Fee Related CN203995294U (en) | 2014-07-17 | 2014-07-17 | A kind of push-and-pull blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203995294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929910A (en) * | 2020-08-05 | 2020-11-13 | 贵州省人民医院 | Image branch of academic or vocational study is with fixed lamp plate |
-
2014
- 2014-07-17 CN CN201420395708.7U patent/CN203995294U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929910A (en) * | 2020-08-05 | 2020-11-13 | 贵州省人民医院 | Image branch of academic or vocational study is with fixed lamp plate |
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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 |
Granted publication date: 20141210 Termination date: 20150717 |
|
| EXPY | Termination of patent right or utility model |