CN201881741U - Lifting blackboard - Google Patents
Lifting blackboard Download PDFInfo
- Publication number
- CN201881741U CN201881741U CN2010206270849U CN201020627084U CN201881741U CN 201881741 U CN201881741 U CN 201881741U CN 2010206270849 U CN2010206270849 U CN 2010206270849U CN 201020627084 U CN201020627084 U CN 201020627084U CN 201881741 U CN201881741 U CN 201881741U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- steel wire
- wire rope
- lifting
- movable
- 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 discloses a lifting blackboard which comprises a blackboard body. Four pulleys are respectively arranged on four corners of the back surface of the blackboard body; a suspended steel wire rounds the four pulleys in a transverse 8 shape; and the steel wire between the upper and the lower pulleys positioned on both sides of the blackboard are provided with fixing lock blocks for fixing the steel wire on a wall. The lifting blackboard is simple in structure and can be lifted stably at any point of the blackboard.
Description
Technical field
The utility model relates to a kind of culture and education equipment, especially a kind of blackboard that can lifting.
Background technology
Blackboard is a requisite equipment in the teaching process, blackboard of the prior art mostly is and is fixed on the wall or on the support, the people that this fixing blackboard is difficult to adapt to different heights writes on blackboard, and, when the writer writes on blackboard, its health can hinder the person's that watches the blackboard sight line, in order to overcome these shortcomings, in recent years people developed can oscilaltion blackboard, but, the electric up-down blackboard exists complex structure, lifting needs electric power, can not adapt to the instructions for use in some places that do not power, the hand-operated lifting blackboard then exists the operation effort, blackboard needs the operator that the blackboard both sides are applied shortcomings such as uniform lift force in lifting process.
The utility model content
The technical problem that utility model will solve is: a kind of blackboard movable up and down is provided, and this blackboard movable up and down is simple in structure, carries out descending operation in the arbitrfary point of blackboard, can make the stable lifting of blackboard.
The technical scheme that the technical solution problem is adopted: a kind of blackboard movable up and down, comprise blackboard body, on four angles at the blackboard body back side, respectively be provided with a pulley, hanging steel rope is 8 horizontal fonts and walks around four pulleys, and the steel wire rope that is positioned at upper and lower two pulley rooms of blackboard both sides is provided with the fixing fixedly lock dog on the wall of steel wire rope.
As improvement of the present utility model: also be provided with the steel wire rope locking card of restriction steel wire rope and blackboard relative motion on the steel wire rope of pulley room, the locking card is provided with the joystick that the control locking blocks closure or openness.
As further improvement of the utility model: the back side at blackboard also is provided with the lifting power assisting device, described lifting power assisting device is the hinged rod member of zigzag, be provided with power assistant spring at hinged axial region, an end of power assisting device is fixing on the wall, and the other end is fixed on the blackboard body.
Further improve again as of the present utility model: also be provided with the lifting handle in the bottom of blackboard body.
Beneficial effect: in blackboard movable up and down of the present utility model, owing to adopted four pulleys by being positioned at four jiaos of blackboard bodies that blackboard body is suspended on the hanging steel rope, make that blackboard movable up and down lifting resistance of the present utility model is little, descending operation is laborsaving; Walk around four pulleys owing to adopted hanging steel rope to be 8 horizontal fonts, the steel wire rope that is positioned at upper and lower two pulley rooms of blackboard both sides is provided with the fixing such technical characterictic of fixedly lock dog on the wall of steel wire rope, make blackboard movable up and down of the present utility model when any side is carried out descending operation, steel wire rope can be delivered to opposite side uniformly with power, make blackboard in the process of lifting, remain level, lifting stably; Owing on the steel wire rope of pulley room, also be provided with the steel wire rope locking card of restriction steel wire rope and blackboard relative motion, the locking card is provided with the joystick of control locking card closure or openness, therefore, blackboard movable up and down of the present utility model need not in the blackboard both sides slideway to be set and just can fix easily and lifting; Owing to adopted at the back side of blackboard and also be provided with the lifting power assisting device, described lifting power assisting device is the hinged rod member of zigzag, be provided with power assistant spring at hinged axial region, one end of power assisting device is fixing on the wall, the other end is fixed on the technical characterictic on the blackboard body, utilize spring to carry out power-assisted, utilize the balancing weight power-assisted to reduce the volume of blackboard, and make the descending operation of blackboard more laborsaving, lighter; Owing to also be provided with the lifting handle in the bottom of blackboard body, make blackboard movable up and down more convenient operation of the present utility model.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the rearview of blackboard movable up and down of the present utility model.
The specific embodiment
As shown in Figure 1, blackboard movable up and down of the present utility model, comprise blackboard body 3, be provided with lifting handle 9 in the bottom of blackboard body, on four angles at the blackboard body back side, respectively be provided with a pulley 1, hanging steel rope 2 is 8 horizontal fonts and walks around four pulleys 1, be positioned at the blackboard both sides on, the steel wire rope of following two pulley rooms is provided with the fixing fixedly lock dog 6 on the wall of steel wire rope, on the steel wire rope of pulley room, also be provided with the steel wire rope locking card 7 of restriction steel wire rope and blackboard relative motion, the locking card is provided with the joystick 8 of control locking card closure or openness, the back side at blackboard also is provided with the lifting power assisting device, described lifting power assisting device is the hinged rod member of zigzag 5, be provided with power assistant spring 4 at hinged axial region, an end of power assisting device is fixing on the wall, and the other end is fixed on the blackboard body.
Claims (4)
1. blackboard movable up and down, comprise blackboard body (3), it is characterized in that: on four angles at the blackboard body back side, respectively be provided with a pulley (1), hanging steel rope (2) is 8 horizontal fonts and walks around four pulleys, and the steel wire rope that is positioned at upper and lower two pulley rooms of blackboard both sides is provided with the fixing fixedly lock dog (6) on the wall of steel wire rope.
2. a kind of blackboard movable up and down according to claim 1 is characterized in that: also be provided with the steel wire rope locking card (7) of restriction steel wire rope and blackboard relative motion on the steel wire rope of pulley room, the locking card is provided with the joystick (8) of control locking card closure or openness.
3. a kind of blackboard movable up and down according to claim 1 and 2, it is characterized in that: the back side at blackboard also is provided with the lifting power assisting device, described lifting power assisting device is the hinged rod member of zigzag (5), be provided with power assistant spring (4) at hinged axial region, one end of power assisting device is fixing on the wall, and the other end is fixed on the blackboard body.
4. a kind of blackboard movable up and down according to claim 3 is characterized in that: also be provided with lifting handle (9) in the bottom of blackboard body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206270849U CN201881741U (en) | 2010-11-26 | 2010-11-26 | Lifting blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206270849U CN201881741U (en) | 2010-11-26 | 2010-11-26 | Lifting blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201881741U true CN201881741U (en) | 2011-06-29 |
Family
ID=44179278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206270849U Expired - Fee Related CN201881741U (en) | 2010-11-26 | 2010-11-26 | Lifting blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201881741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529517A (en) * | 2012-01-19 | 2012-07-04 | 叶齐兰 | Lifting blackboard |
-
2010
- 2010-11-26 CN CN2010206270849U patent/CN201881741U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529517A (en) * | 2012-01-19 | 2012-07-04 | 叶齐兰 | Lifting blackboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20131126 |