CN202925945U - Adjustable hydraulic base plate for classroom - Google Patents
Adjustable hydraulic base plate for classroom Download PDFInfo
- Publication number
- CN202925945U CN202925945U CN 201220652137 CN201220652137U CN202925945U CN 202925945 U CN202925945 U CN 202925945U CN 201220652137 CN201220652137 CN 201220652137 CN 201220652137 U CN201220652137 U CN 201220652137U CN 202925945 U CN202925945 U CN 202925945U
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- CN
- China
- Prior art keywords
- hydraulic
- backing plate
- classroom
- base plate
- transmission module
- 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 an adjustable hydraulic base plate for a classroom and relates to the technical field of teaching aids. The adjustable hydraulic base plate is characterized by comprising an actuation unit, a hydraulic transmission unit and an operating unit, wherein the hydraulic transmission unit is connected to the actuation unit, and the operating unit is connected to the hydraulic transmission unit and is used for controlling the operation of the hydraulic transmission unit. The adjustable hydraulic base plate solves the problem that people in different statures are inconvenient in writing on a blackboard, with the adoption of the adjustable hydraulic base plate for the classroom, a teacher can adjust the height of the base plate according to the stature in a manual or electric manner, the breadth of the blackboard is sufficiently utilized, the times of cleaning the blackboard are reduced, the labor intensity is reduced, and the teaching efficiency is improved.
Description
Technical field
The utility model relates to the teaching aid technical field, be specifically related to a kind of that can use in the classroom, can be according to the classroom adjustable hydraulic backing plate of teacher's height different adjustment backing plate bearing height.
Background technology
Teacher's height individual difference is very large, the not enough 150cm of the short height of stature, and the height of individual head height surpasses 180cm, considers student's the visual field, general install higher of blackboard, during teachers ' teaching of short and small stature like this, the scope of writing on the blackboard will be very restricted.The current basic skills that addresses this problem is pendulum one cushion plate below blackboard, but the height of backing plate is normally considered according to teacher's average height, can't regulate along with individual teacher difference, so for the very high or very short teacher of stature, use still inconvenient.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of classroom adjustable hydraulic backing plate, solves because of the different problems that cause writing on the blackboard inconvenience on blackboard of height.
Technical problem to be solved in the utility model realizes by the following technical solutions:
A kind of classroom adjustable hydraulic backing plate comprises performance element, hydrostatic transmission module and operating unit, and described hydrostatic transmission module is connected to performance element, and described operating unit is connected to hydrostatic transmission module, is used for controlling the work of hydrostatic transmission module;
Described performance element comprises a backing plate, described hydrostatic transmission module comprises four hydraulic legs and a piston rod, described four hydraulic legs are supported in bottom backing plate, described piston rod one end is connected with operating unit, the described piston rod other end is connected to fuel tank by the first one way valve, be connected to the 3-position 4-way hand-operated valve by the second one way valve, described 3-position 4-way hand-operated valve is connected to four bidirectional hydraulic locks, and described four bidirectional hydraulic locks are connected respectively to four hydraulic legs.
Described operating unit comprises an operating grip.
Described hydraulic leg is that a cylinder body is fixed and the hydraulic cylinder of piston and piston rod slip.
Described three-position four-way valve can be connected to fuel tank by hydraulic pump, and at hydraulic pump and three-position four-way valve, one overflow valve is set directly, adopts electronic mode to control.
The beneficial effects of the utility model are: the utility model solves because of the different problems that cause writing on the blackboard inconvenience on blackboard of height, utilize classroom adjustable hydraulic backing plate, the teacher can be according to the height spacer plate height of oneself, can manually also can electronicly operate, take full advantage of the blackboard breadth, reduce the number of times that erases the board, reduce labour intensity, improve efficiency of teaching.
Description of drawings
Fig. 1 is the utility model manual mode block diagram;
Fig. 2 is the utility model manual mode schematic diagram;
Fig. 3 is the utility model electric model block diagram;
Fig. 4 is the utility model electric model schematic diagram;
Fig. 5 is the utility model electric model electric control circuit figure.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1 and Figure 2, a kind of classroom adjustable hydraulic backing plate comprises performance element, hydrostatic transmission module and manual operation unit, and hydrostatic transmission module is connected to performance element, the manual operation unit is connected to hydrostatic transmission module, is used for controlling the work of hydrostatic transmission module; Performance element comprises a backing plate, hydrostatic transmission module comprises four hydraulic legs 1 and a piston rod 5, four hydraulic legs 1 are supported in bottom backing plate, piston rod 5 one ends are connected with operating unit, piston rod 5 other ends are connected to fuel tank 6 by the first one way valve, are connected to 3-position 4-way hand-operated valve 3 by the second one way valve, and 3-position 4-way hand-operated valve 3 is connected to four bidirectional hydraulic locks 2, four bidirectional hydraulic locks 2 are connected respectively to four hydraulic legs 1, and operating unit comprises an operating grip 4.
When adopting manual mode to control, pull 3-position 4-way hand-operated valve 3 handles, when making 3-position 4-way hand-operated valve 3 change left position into (corresponding " liter "); Lifting operation handle 4 moves on the piston rod piston, the piston rod oil suction, then depress operating grip 4, and the piston rod oil extraction enters the hydraulic cylinder cavity of resorption through 3-position 4-way hand-operated valve 3, bidirectional hydraulic lock 2, moves on piston, and the epicoele oil extraction, four hydraulic legs eject, and backing plate raises; Repeated multiple times pressure boosting operation handle can make backing plate rise to required height.Equally, if when making the 3-position 4-way hand-operated valve change right position into (corresponding " falling "), the pressure boosting operation handle, also can make backing plate be down to required height repeatedly.Highly regulate suitable after, when changing reversal valve into meta (corresponding " stopping "), by bidirectional hydraulic lock, four hydraulic legs are locked, make the backing plate can be because of not heavy and descend.
As Fig. 3, Fig. 4, shown in Figure 5, when adopting electronic mode to control, depress three-position four-way valve 3 start button SB2, when making three-position four-way valve 3 change left position into (corresponding " liter "); Starting motor, pressure oil from fuel tank 6 by hydraulic pump 7 successively through left position, the bidirectional hydraulic lock 2 of three-position four-way valve 3, enter the cavity of resorption of hydraulic cylinder, move on piston, the epicoele oil extraction, four hydraulic legs 1 eject, backing plate raises.Equally, if press start button SB3, when making three-position four-way valve 3 change right position into, (corresponding " falling "), also can make backing plate be down to required height.Highly regulate suitable after, press stop button SB1, with 3 one-tenth metas of three-position four-way valve, (corresponding " stopping ") with 1 locking of four hydraulic legs, makes the backing plate also can be because of not heavy and descend by bidirectional hydraulic lock 2.
Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and manual just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. classroom adjustable hydraulic backing plate, it is characterized in that: comprise performance element, hydrostatic transmission module and operating unit, described hydrostatic transmission module is connected to performance element, and described operating unit is connected to hydrostatic transmission module, is used for controlling the work of hydrostatic transmission module.
2. classroom according to claim 1 adjustable hydraulic backing plate, it is characterized in that: described performance element comprises a backing plate, described hydrostatic transmission module comprises four hydraulic legs and a piston rod, described four hydraulic legs are supported in bottom backing plate, described piston rod one end is connected with operating unit, the described piston rod other end is connected to fuel tank by the first one way valve, be connected to the 3-position 4-way hand-operated valve by the second one way valve, described 3-position 4-way hand-operated valve is connected to four bidirectional hydraulic locks, described four bidirectional hydraulic locks are connected respectively to four hydraulic legs.
3. classroom according to claim 2 adjustable hydraulic backing plate, it is characterized in that: described operating unit comprises an operating grip.
4. classroom according to claim 2 adjustable hydraulic backing plate is characterized in that: described hydraulic leg is that a cylinder body is fixed and hydraulic cylinder that piston and piston rod slide.
5. classroom according to claim 2 adjustable hydraulic backing plate, it is characterized in that: described three-position four-way valve is connected to fuel tank by hydraulic pump, and at hydraulic pump and three-position four-way valve, one overflow valve is set directly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220652137 CN202925945U (en) | 2012-12-03 | 2012-12-03 | Adjustable hydraulic base plate for classroom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220652137 CN202925945U (en) | 2012-12-03 | 2012-12-03 | Adjustable hydraulic base plate for classroom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202925945U true CN202925945U (en) | 2013-05-08 |
Family
ID=48215919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220652137 Expired - Fee Related CN202925945U (en) | 2012-12-03 | 2012-12-03 | Adjustable hydraulic base plate for classroom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202925945U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774900A (en) * | 2014-01-20 | 2014-05-07 | 汪功明 | Hydraulic auxiliary device for parking |
| CN104210285A (en) * | 2013-05-31 | 2014-12-17 | 刘锋利 | Blackboard with height position adjustable |
-
2012
- 2012-12-03 CN CN 201220652137 patent/CN202925945U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210285A (en) * | 2013-05-31 | 2014-12-17 | 刘锋利 | Blackboard with height position adjustable |
| CN103774900A (en) * | 2014-01-20 | 2014-05-07 | 汪功明 | Hydraulic auxiliary device for parking |
| CN103774900B (en) * | 2014-01-20 | 2016-01-27 | 汪功明 | A kind of shut-down hydraulic servicing unit |
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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: 20130508 Termination date: 20131203 |