CN201240171Y

CN201240171Y - Double-frame hanging lift type blackboard

Info

Publication number: CN201240171Y
Application number: CNU2007203048737U
Authority: CN
Inventors: 司林立
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-30
Filing date: 2007-11-30
Publication date: 2009-05-20
Anticipated expiration: 2017-11-30

Abstract

A double-frame fastening/hanging type lifting blackboard mainly comprises two frames, i.e., a fixed frame and a moveable blackboard frame, wherein, the two frames are fastened together by a swan hook rail and a swan hook runner; the sprocket strip and the sprocket are hung together by an automatic roller gear; two groups of automatic lifters which are symmetrical are arranged in the clearance between the two frames; the automatic lifters consist of an air spring for limiting the air pressure, a motion bar and a connecting bar, which are connected to the fixed frame and the moveable blackboard frame so as to form an integral rectangular lifting blackboard which can be lifted flexibly, so that the lifting blackboard can be lifted flexibly when the lifting blackboard is fixed to the wall or other frames, therefore, the blackboard on the wall is turned from a fixed one to a moveable one, the lifting blackboard has the advantages of simple structure and wide suitability, and the lifting blackboard can be locked when not in use.

Description

Two frame blooking-hanging type blackboard movable up and down

One, affiliated technical field

The utility model relates to a kind of pair of frame blooking-hanging type blackboard movable up and down.It is characterized in that: two frameworks, fixed frame and blackboard movable frame, utilize nine word button tracks and nine word button chutes that two frames are buckled together, utilize automatic roller bearing lock that two frameworks are hung over together again, be fixed on the wall, be provided with the two symmetrical groups lift clutch between two frameworks, promote the flexible lifting of blackboard.

Two, background technology

The blackboard movable up and down kind is a lot of at present, and he has just become lifting to blackboard, and floor space is big, and blackboard is little, and what have is also very complicated, takes electricity again, and should use not is to adapt to very much classroom instruction and the required usefulness of propaganda writing on the blackboard.Present classroom instruction still usefulness be the dead blackboard that is attached on the wall, not only long not only flat but also low, writing on the blackboard is not concentrated, and is stiff.Teacher's writing on the blackboard and student eyesight are all made a strong impact.If can live the blackboard on the wall by dead change, the energy oscilaltion, area is big, and writing on the blackboard is convenient, and this has great benefit for classroom instruction.Writing on the blackboard has been concentrated, and blackboard has raise, and student's eyesight and study are all had very big benefit.

Three, summary of the invention

For the blackboard that overcomes existing blackboard movable up and down incompatibility classroom instruction demand and present usefulness remains subsides dead blackboard on the wall, the utility model provides a kind of pair of frame blooking-hanging type blackboard movable up and down, this blackboard can hang on the wall by clip, and lifting flexibly again makes the blackboard on the wall be lived by dead change, area is big, can stop at each position, keep the optimum posture of balance writing on the blackboard, adapt to classroom instruction, blackboard has raise, and student's eyesight and study are had very big change.Structure is tight, simple structure, not electricity consumption.The time spent does not lock.

The utility model solves its technical problem, and the technical scheme that is adopted is: two frameworks, fixed frame and blackboard movable frame.Nine word button tracks are arranged on the fixed frame, automatic roller bearing lock is arranged, lift clutch is arranged, lockhole is arranged.Nine word button chutes are arranged on the movable frame, buckle teeth bar buckle teeth is arranged.The lift clutch connecting hole has lockhole, and blackboard is arranged.

Fixed frame is a rectangle, divides four sections, is that band iron, two are buckled with slide rail with center slits all around, and two broad in the middle is little, and middle two sections is the rice cabinet frame.There is fixing hole in the rectangle crosspoint, and the bolt that rises with splashing is fixed on the wall.Nine word button tracks are arranged on each compartment.What is nine word button tracks, serves as that the track that the basis forms is nine word button tracks with nine words exactly.Nine word button tracks have at interval and backrest behind, are spaced apart the chute of buckle teeth bar.Two nine word button tracks that correspondence position is opposite are arranged on the spacer of both sides.Central segment is two nine word button tracks back-to-back, on three on each track truckle is arranged all.What is automatic roller bearing lock.Exactly on the nine word button tracks below the center slits of fixed frame and backrest on correspondence be provided with the tiger nest, sliding hopper and roller bearing are housed in the tiger, sliding hopper can be up and down, roller bearing comes and goes the buckle teeth bar buckle teeth on turnover and the adjustable shelf in sliding hopper, button is hung mutually in the tiger nest, and blackboard can be rested on the buckle teeth at each position, is automatic roller bearing lock, it mainly is by tiger, tiger nest both sides the attached hole of entrusting to be arranged, and fixedly sliding hopper is used.Sliding hopper in the tiger is equipped with roller bearing, and sliding hopper is provided with the direction switch frame, and bottom has little spring to haul, porose seat, and the top links to each other with the switch backguy, and the back has little spring to haul, and two groups side by side, connect breaker and sit, draw third to stretch out outside the framework.Drawing switch third lock is lived, and at this moment the sliding hopper mouth is to downside, and Reelable blackboard rises, and roller bearing rolls into the tiger nest from sliding hopper, and along with rising, the buckle teeth back of the body is held out roller bearing in the tiger nest and entered sliding hopper, comes and goes like this to pass in and out.Need stop desired location, roller bearing is just hung mutually with buckle teeth in the tiger nest and is stopped.Trip switch lock during decline, little spring retracts the original place to sliding hopper.Mouthful upwards, promote blackboard and rise a little, roller bearing is held out in the tiger nest and is fallen into sliding hopper, and at this moment roller bearing leaves the buckle teeth Reelable blackboard, decline that can without hindrance shelves.Drawing switch lock so back and forth, stroke lifting.Automatically the roller bearing lock plays a major role, and blackboard framework falls down never.

The blackboard movable frame also is a rectangle, divides four sections.Four limits are angle bar frame groove, and certain rigidity is arranged, and center slits is arranged, and the center is a M shape.Corresponding with each position of fixed frame.Nine word button chutes are arranged on each compartment.What is nine word button chutes, can be buckled on the nine word button tracks, and the catching groove that slides up and down is nine word button chutes.Nine word button tracks on it and the fixed frame match, and two frameworks are buckled together.Buckle teeth bar buckle teeth on the movable frame, leaning against backing run by double-angle iron is that tee T is formed, scrape out buckle teeth be welded on the movable frame with corresponding chute on the roller bearing of automatic roller bearing lock, the button that coincide in the tiger nest hangs over together.There is chute at the back side, rectangle movable frame two, and coincideing with the slide rail at fixed frame two has formed two closely frames and buckle extension.Blackboard is housed and edge strip is arranged and the hole in the four frame grooves, blackboard is pressed in the frame groove with bolt.

Symmetry is equipped with two lift clutch in the gap in the middle of two frames, and lift clutch is the vapour spring that limits vapour pressure, motion bar, and connecting rod is formed.Vapour spring and other high pressure vapour spring size are inequality, and character is inequality, and high pressure vapour spring is one to be raised to the top, and one falls the end, can not rest on required each position.The vapour spring that limits vapour pressure is the restriction that is subjected to blackboard movable frame balance, so it can balance stop on each position, for light and flexible, vapour pressure is higher than balance a little.Because of being subjected to the restriction of lifting travel, the vapour bucket is long, and the throw of lever is shorter, and for lifting is flexible, elevating lever can not walk to two end points in the vapour bucket, and except that each position resistance, the bounce of lifting compares greater than the 5-10 kilogram with blackboard movable frame weight balancing in the vapour bucket.Motion bar one end is connected on the fixed frame, and the other end is connected on the connecting rod, and the other end of connecting rod is connected on the connecting hole on the Reelable blackboard framework, and vapour spring one end is connected on the fixed mount, and the other end is connected on the fulcrum of motion bar, forms two symmetrical lifting frames.Lever on two frameworks in lifter center, has two groups respectively, can not be obstructed when making lifting.Form complete two frame blooking-hanging type blackboard movable up and down by above, the time spent does not lock.

The beneficial effects of the utility model mainly are: two frames, fixed frame and movable frame, utilize nine word button tracks and nine word button chutes, two frames are buckled together, utilize the buckle teeth of automatic roller bearing lock on movable frame that two frames are hung over, utilize lift clutch to be connected and fixed framework and movable frame again in the middle symmetry respectively of two frameworks, promote the flexible lifting of blackboard, blackboard on the wall is lived by dead change, and area is big, and is ultra-thin, not electricity consumption, structure is tight, simple structure, wide adaptability, can be fixed on other framework, the time spent does not lock yet.

Four, description of drawings:

Below in conjunction with drawings and Examples, the utility model is further specified:

Fig. 1: blackboard movable up and down front elevation.Figure 15: lift clutch figure.

Fig. 2: blackboard movable up and down right hand view.Figure 16: limit vapour pressure spring figure.

Fig. 3: blackboard movable up and down vertical view.Figure 17: motion bar figure.

Fig. 4: blackboard movable up and down fixed frame reverse side figure.Figure 18: connecting rod figure.

Fig. 5: blackboard movable up and down fixed frame figure.Figure 19: vapour spring sectional side elevation.

Fig. 6: nine word button trajectory diagrams.Figure 20: vapour spring sectional drawing.

Fig. 7: truckle figure.Figure 21: steam vent figure above the vapour dish.

Fig. 8: truckle axle figure.Figure 22: steam vent figure below the vapour dish.

Fig. 9: nine word button track breach figure.Figure 23: blackboard movable up and down movable frame reverse side figure.

Figure 10: automatic roller bearing lock sliding hopper figure.Figure 24: buckle teeth bar buckle teeth figure.

Figure 11: automatic roller bearing lock sliding hopper expanded view.Figure 25: nine word button chute figure.

Figure 12: roller bearing figure.Figure 26: blackboard movable up and down movable frame front elevation.

Figure 13: automatic roller bearing lock sliding hopper front elevation.Figure 27: lockhole figure.

Figure 14: automatic roller bearing lock sliding hopper lifting organization chart.

Fixed frame figure in Fig. 5: track (4), two slide rail (5), Fig. 7 truckle (6), Fig. 8 pulley spindle (7), rice cabinet frame (8), fixing hole (9), truckle hole (10), lever (11) buckled in nine word button tracks (1), buckle teeth chute (2), backrest (3), two nine words.

In Fig. 5, automatic roller bearing lock: tiger (12), tiger nest (13), in Figure 10 sliding hopper (14), in Figure 12 roller bearing (15), attachedly entrust hole (16), in Figure 11 sliding hopper expanded view (17), jagged in Fig. 9 (18), in Figure 13 sliding hopper front elevation (19), (21), little spring (22), the hole of getting lines crossed (23), backguy rope (24), little spring (25) are being sat in sliding hopper crane (20), hole in Figure 14, breaker is sat (26), drawn third (27).

Blackboard movable frame reverse side figure in Figure 23: nine words buckle that chute (28), two nine words are buckled chute (29), buckle teeth bar buckle teeth (30), two chute (31), adjustable shelf connecting hole (32), lever (33) in Figure 24 in Figure 25.

Lift clutch in Figure 15: motion bar (34) in Figure 18, connecting rod (35) in Figure 16, vapour spring (36) in Figure 17, motion bar tie point (37) in Figure 17, motion bar fulcrum tie point (38), attached iron connecting hole (39), rod connection point (40).

On Fig. 5, vapour spring sectional side elevation in Figure 19, vapour spring sectional drawing in Figure 20, vapour dish figure is in 21,22.

Vapour spring sectional side elevation (in 19): vapour bucket (41), spring lever (42), top dead centre is sat (43), lower dead center is sat (44), joint (45) with holes, vapour dish (46), Figure 21,22 steam vents (47), seal groove (67), vapour dish packing flange (48), nuts (49), (50) are sat at the sealing end, seal groove (51), sealing apron (52), external seal indent (53), last seal-seating (54), seal groove (55), sealing apron (56), external seal indent (57), last counterpart seal-seating (58), seal groove (59), sealing apron (60), external seal indent (61).

In Figure 20, vapour spring sectional drawing.Last seal-seating inside groove and spring lever hole (62), spring lever sealing apron (63), last counterpart seal-seating inside groove and spring lever hole (64), spring lever sealing apron (65), lockhole (66), seal groove (67) in Figure 27.

Five, the specific embodiment:

In Fig. 5, fixed frame is a rectangle, area 4000 * 1500, thickness is 40-70, length is three band irons, wide two is 5 * 5 band iron, being buckled with 4 * 4 angle bar above is two slide rail (5), fixed frame is divided into four sections, and two broad in the middle is little, and the centre is a rice cabinet frame (8), nine word button tracks (1) are arranged on every spacer segment, central segment is back-to-back two nine word button tracks (4), and both sides are opposite two nine word button tracks (1), and they have buckle teeth bar chute (2) and backrest (3) behind all is 4 * 4 angle bar.Nine word button tracks, are welded with 2 * 2 square tube and form nine font shapes in interior top by 4 * 4 angle bar, and three an ancient unit of weight have truckle (6) on each track, pulley spindle (7), totally 48,0.5 centimetre of evagination.

Automatically roller bearing lock is Fig. 5 and Fig. 9,10,11,12,13,14 separate on the subdivision view.The position is on the nine word button tracks below the center slits and on the backrest, and correspondence has tiger (12), tiger nest (13), tiger nest two outsides the attached hole of entrusting, and the hole is for fixedly sliding hopper is used, and attached holder is that the help roller bearing slides and increases the firm of tiger nest.On the corresponding nine word button tracks two groups opposite, all have breach (18), the convenient installation.Sliding hopper (14) is housed in the tiger, roller bearing (15) is housed in the bucket, sliding hopper crane (20) is housed on each sliding hopper, and bottom has two little springs (22) to haul, and sliding hopper two has 4 holes to sit, fixing sliding hopper frame, frame line links to each other with lifting backguy rope (24), and the back has little spring to haul (25), and the backguy rope is sat (26) with breaker and linked to each other, in draw third (27) to stretch out the outer lifting of framework used, form automatic roller bearing lock by above.

The blackboard movable frame, reverse side figure and front elevation are rectangle, every place is all corresponding with fixed frame, divide four sections, the centre is the rice cabinet frame, lever and connecting hole (32) is arranged, front elevation, four limits are 3 * 3 angle bar, two has chute (31) behind, matches with the slide rail at fixed frame two, has nine word button chutes (28) and two nine words to buckle chute (29) on the reverse side on each compartment, chute is welded into channel, being buckled on the nine word button tracks of energy standard slided the buckle teeth bar buckle teeth (30) on the movable frame up and down, hang mutually in the tiger nest with the roller bearing (15) in the corresponding chute, two frames are hung over together.Buckle teeth bar buckle teeth is the angle bar by two 2.5 * 2.5, and is welded together back-to-back, presses Fig. 2 .5 distance, scrapes out buckle teeth (30), and two groups of buckle teeth bar buckle teeth must be corresponding, alignment, and button is hung consistent.In the frame groove of the front of movable frame, load onto blackboard, blackboard is pressed in the frame groove, become a rectangle blackboard movable frame by above with edge strip.

Lift clutch, what is a lift clutch, and lift clutch is to constitute a lifting shelf by motion bar, connecting rod, the vapour spring that limits vapour pressure, and composition can promote the lift clutch that is of the flexible lifting of blackboard.It mainly is located in the gap between two frameworks, has symmetrical two groups.Motion bar (34) one ends are connected on the tie point on the fixed frame (37), the other end is connected (35) on the connecting rod, the other end of connecting rod is connected on the tie point of blackboard movable up and down adjustable shelf (32), and vapour spring one end is connected on the attached iron connecting hole on the fixed frame (39).The other end is connected on the fulcrum of motion bar (38) and forms one group of lifter.Another group position opposite of symmetry is installed identical.

The vapour spring that limits vapour pressure is on the lift clutch, can promote the main tool of blackboard movable frame lifting.Size and other size are inequality, and character is also inequality.High pressure vapour spring is one to be raised to the top, drops to the end, and can not stop on each required position of centre.The vapour spring that limits vapour pressure is to compare more greatly with blackboard movable frame weight balancing, can rest on each required position under the effect of automatic roller bearing lock.Because be subjected to the restriction of stroke, the vapour bucket is long, the throw of lever is shorter again, and for starting is convenient flexibly, spring lever can not walk to two end points in the vapour bucket, remove outside each position resistance, the strength that spring lever stretches out greater than blackboard adjustable shelf weight balancing than 5-10 kilogram.

The structure chart of vapour spring is on Fig. 5 and Figure 19,20,21, in 22, vapour spring vertical profile structure chart, in the vapour spring sectional drawing: vapour bucket (41), spring lever (42), top dead centre is sat (43), lower dead center is sat (44), joint (45) with holes, vapour dish (46), steam vent (47), seal close groove (67), vapour dish packing flange (48), nuts (49), (50) are sat at the sealing end, sealing skin groove (51), sealing apron (52), external seal indent (53), last seal-seating (54), sealing skin groove (55), sealing apron (56), external seal indent (57), last counterpart seal-seating (58), sealing skin groove (59), sealing apron (60), external seal indent (61), last seal-seating inside groove and spring lever hole (62), spring lever sealing apron (63), last counterpart seal-seating inside groove and spring lever hole (64), spring lever sealing apron (65).

Claims

1, a kind of pair of frame blooking-hanging type blackboard movable up and down, comprise two frameworks, fixed frame, the blackboard movable frame, it is characterized in that: the spacer of described fixed frame is provided with nine word button tracks, automatic roller bearing lock, the center symmetry has lift clutch, on the spacer of described blackboard movable frame, be provided with nine word button chutes with the corresponding position of fixed frame, two nine word button chutes have buckle teeth bar buckle teeth, two chute, connecting hole is arranged, there is the frame groove in the front, and blackboard is arranged, and makes nine word button tracks on the fixed frame buckle with nine words on the blackboard movable frame that chute is corresponding to interlock, the roller bearing of the automatic roller bearing lock on the fixed frame in the tiger nest with movable frame on buckle teeth bar buckle teeth hang mutually, the connecting rod other end of the lift clutch on the fixed frame links to each other with the connecting hole on the movable frame.

2, according to claim 1 pair of frame blooking-hanging type blackboard movable up and down, it is characterized in that: described nine word button tracks are to be welded with nine word button tracks (1) on the spacer of fixed frame, (2) are at interval arranged, backrest (3), two nine word button tracks (4), truckle (6) is all arranged on each track, two slide rail (5) is arranged, fixing hole (9) is arranged, lockhole (66) is arranged, make nine word button tracks, nine word button chutes on two nine word button tracks and the movable frame and two nine words are buckled chute and are interlocked, be spaced apart the chute of buckle teeth bar buckle teeth on the movable frame, two chute on two slide rail and the blackboard movable frame interlocks, and fixing hole is fixed on fixed frame on the wall or on other framework.

3, according to claim 1 pair of framework blooking-hanging type blackboard movable up and down, it is characterized in that: described automatic roller bearing lock, be positioned on the nine word button tracks and backrest of the center slits below on the spacer of both sides, two groups side by side, have tiger (12), tiger nest (13), the attached hole (16) of entrusting, corresponding jagged (18) have sliding hopper (14) in the tiger, roller bearing (15) is arranged in the bucket, crane is arranged on the sliding hopper, following two little springs (22) haul respectively, sit through the hole to connect backguy rope (24), and backguy rope back has little spring (25) to haul, through the hole of getting lines crossed (23), breaker is sat (26), connects lock third (27), make roller bearing in the tiger nest with movable frame on buckle teeth bar buckle teeth hang mutually.

4, according to claim 1 pair of frame blooking-hanging type blackboard movable up and down, it is characterized in that: described lift clutch, be to be provided with the two symmetrical groups lift clutch on both sides, fixed frame center, by motion bar (34), connecting rod (35), the vapour spring (36) that limits vapour pressure is formed, motion bar one end is connected and fixed framework (37), one end is connected on the connecting rod, limit the vapour spring (36) of vapour pressure, an end is connected on the attached iron connecting hole (39) on the fixed frame, and an end is connected on the fulcrum of motion bar, to lever (33) should be arranged, the other end (40) of connecting rod is connected on the connecting hole of blackboard movable frame (32) on the central frame of each group lift clutch.