Self-locking book end device
Technical field
The present invention relates to the book end device of a kind of large-scale bookshelf, especially can smooth self-locking that is mobile and that automatically lock
Book end device.
Background technology
At present, the movement that the book end device of known large-scale bookshelf can not carry out smoothing can not lock again automatically,
Therefore, it is difficult to books numerous on stable supporting bookshelf.
Summary of the invention
For the deficiency overcoming the book end device of existing large-scale bookshelf to be not convenient to use, the present invention provides a kind of self-locking
Formula book end device, this self-locking book end device can pass through again self-locking by synchronizing the movement that coasting mechanism guarantees that book end device is smooth
Mechanism makes the books on the supporting bookshelf that book end device is stable.
The technical solution adopted for the present invention to solve the technical problems is: the present invention include platen, left gear, right gear,
Tooth bar, limiting plate, bearing, locking bar, book end plate, lockhole, screw shaft, spring and exit groove.
Platen is rectangle plane plate structure, and several platen horizontal cross are arranged, in the lower section of platen along before and after platen
While be connected to before and after two toothed rack, front and back tooth bar is parallel to each other with platen, the teeth on front tooth bar and the tooth on rear tooth bar
Tooth is oppositely arranged.Front and back two limiting plates are connected to the lower section of before and after's tooth bar, the front of front limit plate along and front tooth bar
Front is along arranged side by side, after the back edge of front limit plate is beyond the teeth edge of front tooth bar, the back edge of rear position margining plate and rear tooth bar
Edge is arranged side by side, and the front of rear position margining plate is along the teeth edge beyond rear tooth bar.Book end plate is the bending plate structure of 7 fonts, at book
Offering two axis holes in left and right on the transverse plate of riser, left gear is connected with the left axis hole on book end plate by screw shaft, right tooth
Wheel is connected with the right axis hole on book end plate by screw shaft, and left gear engages each other with right gear, along axle center on right gear
Around uniformly offer several lockholes, each lockhole all offers and exits groove.The described groove that exits is the hole along lockhole
The tilting chute that wall is offered from bottom to top.The transverse plate of book end plate offers through hole, on the position of through hole and right gear
Lockhole position corresponding.Prop up bearing to be connected on longitudinal plate of book end plate, a bearing offers longitudinal pilot hole,
Pilot hole in bearing aligns with the through hole on book end plate.Locking bar is L-shaped bar structure, and the upper end of locking bar is from bottom to top through propping up
Pilot hole in bearing and the through hole on book end plate also insert in a lockhole on right gear, set between bearing and locking bar
It is equipped with driving spring, described bearing, spring, locking bar, lockhole and exit groove and collectively constitute self-locking mechanism.Book end plate is arranged on
The lower section of platen, book end plate supports the books on next layer of platen by longitudinal plate, the left gear on book end plate be positioned at platen and
Engaging between front limit plate and with front tooth bar, the right gear on book end plate is nibbled between platen and rear position margining plate and with rear tooth bar
Closing, described front tooth bar, left gear, right gear and rear tooth bar collectively constitute synchronization coasting mechanism.
When the books on platen reduce, books can be promoted by book end plate, owing to synchronizing coasting mechanism and from lock machine
The common effect of structure, book end plate and books will be along the unidirectional smooth movements of platen.When book end plate and books move into place, locking bar
Upper end can enter in a lockhole on right gear under the action of the spring, and therefore locking book end plate.
When exiting book end plate, pull downward on locking bar by the lower end of locking bar, when the upper end of locking bar is from right gear
When lockhole exits, book end plate can be promoted reversely to move.
The invention has the beneficial effects as follows, can be by synchronizing the movement that coasting mechanism guarantees that book end device is smooth, again can be by certainly
Latch mechanism makes the books on the supporting bookshelf that book end device is stable.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the front view of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the upward view of Fig. 1.
Fig. 4 is the A-A profile of Fig. 1.
Fig. 5 is the B-B profile of Fig. 2.
Fig. 6 is the C-C enlarged cross-sectional view of Fig. 2.
Fig. 7 is the enforcement illustration of Fig. 6.
In figure: 1. platen.2. left gear.3. right gear.4. tooth bar.5. limiting plate.6. a bearing.7. locking bar.8. book end
Plate.9. books.10. lockhole.11. screw shafts.12. springs.13. exit groove.
Detailed description of the invention
In Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, platen 1 is rectangle plane plate structure, several platen 1 horizontal cross
Arranging, be connected to before and after two toothed rack 4 in the lower section of platen 1 along limit before and after platen 1, front and back tooth bar 4 is mutual with platen 1
Parallel, the teeth on front tooth bar 4 are oppositely arranged with the teeth on rear tooth bar 4.Front and back two limiting plates 5 are connected to before and after's tooth
The lower section of bar 4, the front of front limit plate 5 is along the front with front tooth bar 4 along side by side, and the back edge of front limit plate 5 exceeds front tooth bar 4
Teeth edge, the back edge of the back edge of rear position margining plate 5 and rear tooth bar 4 is arranged side by side, and the front of rear position margining plate 5 is along beyond rear tooth bar
The teeth edge of 4.Book end plate 8 is the bending plate structure of 7 fonts, offers two axis holes in left and right on the transverse plate of book end plate 7,
Left gear 2 is connected with the left axis hole on book end plate 8 by screw shaft 11, and right gear 3 is by screw shaft 11 and the right side on book end plate 8
Axis hole connects, and left gear 2 engages each other with right gear 3, uniformly offers several lockholes on right gear 3 around axle center
10, each lockhole 10 all offers and exits groove 13.The described groove 13 that exits is to offer from bottom to top along the hole wall of lockhole 10
Tilting chute.The transverse plate of book end plate 8 offers through hole, the position of through hole and lockhole 10 position on right gear 3
Corresponding.Prop up bearing 6 to be connected on longitudinal plate of book end plate 8, a bearing 6 offers longitudinal pilot hole, in a bearing 6
Pilot hole align with the through hole on book end plate 8.Locking bar 7 is L-shaped bar structure, and the upper end of locking bar 7 is from bottom to top through supporting
Pilot hole on seat 6 and through hole on book end plate 8 also insert in a lockhole 10 on right gear 3, at a bearing 6 and locking bar 7
Between be provided with driving spring 12, described bearing 6, spring 12, locking bar 7, lockhole 10 and exit groove 13 and collectively constitute self-locking
Mechanism.Book end plate 8 is arranged on the lower section of platen 1, and book end plate 8 supports the books 9 on next layer of platen 1, book end by longitudinal plate
Left gear 1 on plate 8 engages between platen 1 and front limit plate 5 and with front tooth bar 4, and the right gear 3 on book end plate 8 is positioned at
Engaging between platen 1 and rear position margining plate 5 and with rear tooth bar 4, described front tooth bar 4, left gear 2, right gear 3 and rear tooth bar 4 are altogether
Coasting mechanism is synchronized with composition.
In Fig. 1, Fig. 2, Fig. 6, Fig. 7, when the books 9 on platen 1 reduce, books 9 can be promoted by book end plate 8,
Owing to synchronizing the common effect of coasting mechanism and self-locking mechanism, book end plate 8 and books 9 will be along the unidirectional smooth movements of platen 1.Work as book
When riser 8 and books 9 move into place, the upper end of locking bar 7 can enter a lock on right gear 3 under the effect of spring 12
In hole 10, and therefore locking book end plate 8.When exiting book end plate 8, pull downward on locking bar 7 by the lower end of locking bar 7, when locking bar 7
Upper end lockhole 10 from right gear 3 in when exiting, book end plate 8 can be promoted reversely to move.