CN210888771U

CN210888771U - But height-adjusting is ladder for library

Info

Publication number: CN210888771U
Application number: CN201921256250.6U
Authority: CN
Inventors: 刘素清
Original assignee: Hebei Normal University of Science and Technology
Current assignee: Hebei Normal University of Science and Technology
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-06-30
Anticipated expiration: 2029-08-05

Abstract

The utility model discloses a but height-adjusting is ladder for library, the on-line screen storage device comprises a base, the last fixed surface of base is connected with the box, the inside wall fixedly connected with slide rail of box, the inside sliding connection of slide rail has the lifter, one side of lifter is provided with the straight-teeth gear, the locating hole has been seted up to the opposite side of lifter, the surface rotation of straight-teeth gear is connected with the driving gear. This but height-adjusting is ladder for library, through the slide rail, the lifter, the straight-teeth gear, the locating hole, the driving gear, handle and positioning bolt's setting, the user of service can rotate the handle, and the driving gear just can drive straight-teeth gear and lifter and reciprocate along the slide rail, also lets extension ladder's height change simultaneously, pegs graft into the locating hole with positioning bolt, alright in order to reach fixed effect, the user of service has highly adjusted the height of ladder according to the bookshelf, has brought the convenience for the user of service.

Description

But height-adjusting is ladder for library

Technical Field

The utility model relates to a library management apparatus technical field specifically is a but height-adjusting is ladder for library.

Background

The height-adjustable ladder for the library is a tool for facilitating book arrangement and placement of books by a librarian. When books are arranged, workers need to sort books which are turned over and are lost in book carts or books which are returned by readers according to classification numbers, the books are placed on shelves, the existing bookshelf is too high, a ladder is often needed for storage, and if the height of the ladder is fixed, the books on the bookshelf with different heights are not convenient.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a but height-adjusting is ladder for library has solved the problem of proposing among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a but height-adjusting is ladder for library, includes the base, the last fixed surface of base is connected with the box, the inside wall fixedly connected with slide rail of box, the inside sliding connection of slide rail has the lifter, one side of lifter is provided with the straight-teeth gear, the locating hole has been seted up to the opposite side of lifter, the surface of straight-teeth gear rotates and is connected with the driving gear, the side fixedly connected with rotation axis of driving gear, the one end fixedly connected with handle of rotation axis, the equal fixedly connected with in both sides of lifter upper end puts the thing board, the top joint of lifter has the extension ladder, the lock ring has been cup jointed to the bottom of extension ladder, the last fixed surface of box is connected with the fixed block, the side threaded connection of fixed block has positioning.

Optionally, the upper surface of base is fixedly connected with the push rod, the lower fixed surface of base is connected with the gyro wheel, the quantity of gyro wheel is four, and four the gyro wheel is at the lower surface of base with the form fixed connection of rectangle array.

Optionally, the number of the lifting rods and the driving gears is two, and the lifting rods and the driving gears are symmetrically arranged by taking the vertical central line of the rotating shaft as a symmetry axis.

Optionally, the number of the positioning holes is a plurality, the positioning holes are divided into two groups on average, and the two groups of positioning holes are respectively arranged on the side surfaces of the two lifting rods.

Optionally, the lifting rod is movably connected with the extension ladder, and the extension ladder is movably connected with the support ring.

Optionally, the support rings are fixedly connected to the upper surface of the base, the number of the support rings is two, and the two support rings are respectively sleeved on two sides of the bottom of the extension ladder.

(III) advantageous effects

The utility model provides a but height-adjusting is ladder for library possesses following beneficial effect:

1. this but height-adjusting is ladder for library, through the slide rail, the lifter, the straight-teeth gear, the locating hole, the driving gear, handle and positioning bolt's setting, the user of service can rotate the handle, and the driving gear just can drive straight-teeth gear and lifter and reciprocate along the slide rail, also lets extension ladder's height change simultaneously, pegs graft into the locating hole with positioning bolt, alright in order to reach fixed effect, the user of service has highly adjusted the height of ladder according to the bookshelf, has brought the convenience for the user of service.

2. This but height-adjusting is ladder for library through the setting of putting thing board, lock ring and fixed block, and the user of service can be directly place the books that need put on putting the thing board, and books also can be transported the top when the lifter rises, has saved strength for the user of service, and the stability of lifter and extension ladder has been guaranteed to lock ring and fixed block, provides the guarantee for user of service's safety.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic structural view of the inside of the case of the present invention;

fig. 3 is a schematic structural diagram of the fixing block of the present invention.

In the figure: 1. a base; 2. a box body; 3. a slide rail; 4. a lifting rod; 5. a spur gear; 6. positioning holes; 7. a driving gear; 8. a rotating shaft; 9. a handle; 10. a storage plate; 11. an extension ladder; 12. a support ring; 13. a fixed block; 14. positioning the bolt; 15. a push rod; 16. and a roller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 3, the present invention provides a technical solution: a height-adjustable library ladder comprises a base 1, wherein a box body 2 is fixedly connected to the upper surface of the base 1, a slide rail 3 is fixedly connected to the inner side wall of the box body 2, a lifting rod 4 is slidably connected to the inside of the slide rail 3, a straight gear 5 is arranged on one side of the lifting rod 4, a positioning hole 6 is formed in the other side of the lifting rod 4, a driving gear 7 is rotatably connected to the surface of the straight gear 5, a rotating shaft 8 is fixedly connected to the side surface of the driving gear 7, a handle 9 is fixedly connected to one end of the rotating shaft 8, article placing plates 10 are fixedly connected to the two sides of the upper end of the lifting rod 4, an extension ladder 11 is clamped to the top end of the lifting rod 4, a support ring 12 is sleeved at the bottom of the extension ladder 11, a fixed block 13 is fixedly connected to the upper surface of the box body 2, through the arrangement of, the lifting rod 4 can be lifted and the books can be conveyed to the upper part, so that the strength of a user is saved, the stability of the lifting rod 4 and the extension ladder 11 is ensured by the support ring 12 and the fixed block 13, the safety of the user is ensured, the side surface of the fixed block 13 is in threaded connection with the positioning bolt 14, the positioning bolt 14 is inserted into the positioning hole 6 by the arrangement of the slide rail 3, the lifting rod 4, the straight gear 5, the positioning hole 6, the driving gear 7, the handle 9 and the positioning bolt 14, the user can rotate the handle 9, the driving gear 7 can drive the straight gear 5 and the lifting rod 4 to move up and down along the slide rail 3, the height of the extension ladder 11 is changed, the positioning bolt 14 is inserted into the positioning hole 6, so that the fixing effect can be achieved, the user can adjust the height of the ladder according to the height of the bookshelf, the convenience is brought to the user, base 1's lower fixed surface is connected with gyro wheel 16, the quantity of gyro wheel 16 is four, and four gyro wheels 16 use the form fixed connection of rectangle array at base 1's lower surface, lifter 4 and driving gear 7's quantity is two, and two lifter 4 and driving gear 7 use the perpendicular central line of rotation axis 8 to be the symmetry setting as the symmetry axis, the quantity of locating hole 6 is a plurality of, and a plurality of locating hole 6 evenly divide into two sets ofly, two sets of locating hole 6 set up the side at two lifter 4 respectively, lifter 4 and extension ladder 11 swing joint, extension ladder 11 and lock ring 12 swing joint, lock ring 12 fixed connection is at base 1's upper surface, lock ring 12's quantity is two, and two lock rings 12 cup joint the both sides in extension ladder 11 bottom respectively.

In conclusion, when the height-adjustable ladder for the library is used, a user can rotate the handle 9 through the arrangement of the slide rail 3, the lifting rod 4, the straight gear 5, the positioning hole 6, the driving gear 7, the handle 9 and the positioning bolt 14, the driving gear 7 can drive the straight gear 5 and the lifting rod 4 to move up and down along the slide rail 3, the height of the telescopic ladder 11 is changed, the positioning bolt 14 is inserted into the positioning hole 6, so that the fixing effect can be achieved, the user can adjust the height of the ladder according to the height of a bookshelf, convenience is brought to the user, the user can directly place books to be placed on the placing plate 10 through the arrangement of the placing plate 10, the lifting rod 4 is lifted up, the books are conveyed to the upper side, strength is saved for the user, the supporting ring 12 and the fixing block 13 ensure the stability of the lifting rod 4 and the telescopic ladder 11, and the safety of the user is guaranteed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A height-adjustable library ladder, includes base (1), its characterized in that: the upper surface of the base (1) is fixedly connected with a box body (2), the inner side wall of the box body (2) is fixedly connected with a slide rail (3), the inner sliding of the slide rail (3) is connected with a lifting rod (4), one side of the lifting rod (4) is provided with a straight gear (5), the other side of the lifting rod (4) is provided with a positioning hole (6), the surface of the straight gear (5) is rotated and connected with a driving gear (7), the side surface of the driving gear (7) is fixedly connected with a rotating shaft (8), one end of the rotating shaft (8) is fixedly connected with a handle (9), both sides of the upper end of the lifting rod (4) are fixedly connected with an object placing plate (10), the top end of the lifting rod (4) is clamped with a telescopic ladder (11), the bottom of the telescopic ladder (11) is sleeved with a support ring (12), the upper surface of the, and the side surface of the fixed block (13) is in threaded connection with a positioning bolt (14).

2. An adjustable height library ladder as claimed in claim 1, wherein: the upper surface fixed connection of base (1) has push rod (15), the lower fixed surface of base (1) is connected with gyro wheel (16), the quantity of gyro wheel (16) is four, and four gyro wheel (16) are at the lower surface of base (1) with the form fixed connection of rectangle array.

3. An adjustable height library ladder as claimed in claim 1, wherein: the number of the lifting rods (4) and the number of the driving gears (7) are two, and the lifting rods (4) and the driving gears (7) are symmetrically arranged by taking the vertical central line of the rotating shaft (8) as a symmetry axis.

4. An adjustable height library ladder as claimed in claim 1, wherein: the number of the positioning holes (6) is a plurality, the positioning holes (6) are equally divided into two groups, and the two groups of the positioning holes (6) are respectively arranged on the side surfaces of the two lifting rods (4).

5. An adjustable height library ladder as claimed in claim 1, wherein: the lifting rod (4) is movably connected with the extension ladder (11), and the extension ladder (11) is movably connected with the support ring (12).

6. An adjustable height library ladder as claimed in claim 1, wherein: the support rings (12) are fixedly connected to the upper surface of the base (1), the number of the support rings (12) is two, and the two support rings (12) are respectively sleeved on two sides of the bottom of the extension ladder (11).