CN211573352U

CN211573352U - But height-adjusting is ladder for library

Info

Publication number: CN211573352U
Application number: CN202020086183.4U
Authority: CN
Inventors: 何子山
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-09-25
Anticipated expiration: 2030-01-15

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 strutting arrangement, the spout has been seted up to strutting arrangement's one side, the fixed surface of spout is connected with the lifting plate, the last fixed surface of lifting plate is connected with the roof, the last fixed surface of roof is connected with the guardrail, one side fixedly connected with rack of lifting plate, the locating hole has been seted up to one side of lifting plate, the surface toothing of rack has the gear. This but height-adjusting is ladder for library can prop up the roof of co-altitude not through strutting arrangement and lifting plate slip setting, has solved the unable condition of height-adjusting of current library ladder, drives the rack rebound through the gear and can transfer the height that connects the promotion, can block strutting arrangement and lifting plate through the inserted bar and make and stabilize between the two, can become the ladder that can change length through a ladder and No. two ladders and arrive the roof.

Description

But height-adjusting is ladder for library

Technical Field

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

Background

The library is a mechanism for collecting, arranging and collecting book data for people to read and reference, the library appears 3000 years ago in the public, the library has functions of preserving human cultural heritage, developing information resources, participating in social education and the like, and the business work of the library is composed of a plurality of interrelated working links, generally comprising 4 parts of document collection, arrangement, book reservation and service.

In the daily management work of a library, the arrangement of books is one of important parts in the management, and for the arrangement of books at high positions of the library, because of the limitation of height, the ladder is adopted for the arrangement of the books at the high positions, but the height of the ladder for the library is fixed at present, and the ladder is inconvenient to use, so that the height-adjustable ladder for the library is needed.

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 strutting arrangement, the spout has been seted up to strutting arrangement's one side, the fixed surface of spout is connected with the lifting plate, the last fixed surface of lifting plate is connected with the roof, the last fixed surface of roof is connected with the guardrail, one side fixedly connected with rack of lifting plate, the locating hole has been seted up to one side of lifting plate, the surface toothing of rack has the gear, the equal fixedly connected with connecting rod in both sides of gear, the one end fixedly connected with crank of connecting rod, a ladder of one side fixedly connected with of roof.

Optionally, one side sliding connection of a ladder has No. two ladders, the fixed surface of a ladder is connected with the ladder pole, the fixed surface of No. two ladders is connected with the ladder pole.

Optionally, the lower surface of No. two ladders is adjusted there is the protective sheath, the connecting hole has been seted up on the surface of No. two ladders, the quantity of connecting hole is a plurality of.

Optionally, a screw hole is formed in one side of the first ladder, a connecting bolt is connected to the surface of the screw hole in a threaded mode, and a first ladder is connected to one side of the connecting bolt in a threaded mode through a second ladder.

Optionally, a through hole is formed in one side of the supporting device, an insertion rod is inserted into the surface of the through hole, and the other end of the insertion rod is clamped with the lifting plate.

Optionally, the lower surface of the base is provided with a groove, the surface of the groove is movably connected with small wheels through a rotating shaft, and the number of the small wheels is four.

(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 can prop up the roof of co-altitude not through strutting arrangement and lifting plate slip setting, has solved the unable condition of height-adjusting of current library ladder, drives the rack rebound through the gear and can transfer the height that connects the promotion, can block strutting arrangement and lifting plate through the inserted bar and make and stabilize between the two, can become on the ladder that can change length reachs the roof through a ladder and No. two ladders.

2. This but height-adjusting is ladder for library can protect the administrator through the guardrail, can conveniently promote this ladder more through the small-size wheel, and the height through adjusting the roof earlier is fixed more stable in the extension length reuse connecting bolt of confirming No. two ladders.

Drawings

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

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

fig. 3 is a schematic view of the sectional structure of the first ladder of the present invention.

In the figure: 1. a base; 2. a support device; 3. a chute; 4. a lifting plate; 5. a top plate; 6. a guardrail; 7. a rack; 8. positioning holes; 9. a gear; 10. a connecting rod; 11. a crank; 12. a first ladder; 13. a second ladder; 14. a ladder bar; 15. a protective sleeve; 16. a connecting bolt; 17. inserting a rod; 18. a small wheel.

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 is disclosed, wherein a supporting device 2 is fixedly connected to the upper surface of a base 1, a sliding groove 3 is formed in one side of the supporting device 2, a lifting plate 4 is fixedly connected to the surface of the sliding groove 3, a top plate 5 is fixedly connected to the upper surface of the lifting plate 4, a guardrail 6 is fixedly connected to the upper surface of the top plate 5, a rack 7 is fixedly connected to one side of the lifting plate 4, a positioning hole 8 is formed in one side of the lifting plate 4, a gear 9 is meshed with the surface of the rack 7, connecting rods 10 are fixedly connected to both sides of the gear 9, the surface of each connecting rod 10 is movably connected with the supporting device 2 through a fixing block, a crank 11 is fixedly connected to one end of each connecting rod 10, the top plates 5 with different heights can be supported through the sliding arrangement of the supporting device 2 and the lifting plate 4, the problem that the height of the existing library ladder, the support device 2 and the lifting plate 4 can be clamped and stabilized between the two through the inserted rod 17, and the first ladder 12 and the second ladder 13 can be changed into ladders with changeable lengths to reach the top plate 5;

one side of the top plate 5 is fixedly connected with a first ladder 12 and one side of the first ladder 12 is slidably connected with a second ladder 13, the surface of the first ladder 12 is fixedly connected with ladder rods 14, the surface of the second ladder 13 is fixedly connected with ladder rods 14, the lower surface of the second ladder 13 is sleeved with a protective sleeve 15, the surface of the second ladder 13 is provided with connecting holes, the number of the connecting holes is that one side of a plurality of first ladders 12 is provided with screw holes, the surface of each screw hole is in threaded connection with a connecting bolt 16, one side of each connecting bolt 16 is in threaded connection with the first ladder 12 through the second ladder 13, one side of the supporting device 2 is provided with a through hole, the surface of each through hole is spliced with an inserting rod 17, the other end of each inserting rod 17 is clamped with the lifting plate 4, the lower surface of the base 1 is provided with a groove, the surface of the groove is movably connected with small-size, the ladder can be pushed more conveniently through the small-size wheels 18, and the height of the top plate 5 is adjusted to be more stable when the extending length of the second ladder 13 is determined and then the second ladder is fixed through the connecting bolt 16.

As an optimal technical solution of the utility model: the number of connecting bolt is two, and a ladder and No. two ladders adopt both sides fixed, and the lifting plate is the same

In use, the height-adjustable ladder for the library is used, when the crank handle 11 is shaken to support the top plate 5 to a proper position, the inserted rod 17 is inserted to prevent the lifting plate 4 from moving, then the second ladder 13 in the first ladder 12 is pulled out to be in contact with the ground, and then the second ladder is fixed by the connecting bolt 16 to search books.

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 supporting device (2), one side of the supporting device (2) is provided with a sliding chute (3), the surface of the chute (3) is fixedly connected with a lifting plate (4), the upper surface of the lifting plate (4) is fixedly connected with a top plate (5), the upper surface of the top plate (5) is fixedly connected with a guardrail (6), one side of the lifting plate (4) is fixedly connected with a rack (7), one side of the lifting plate (4) is provided with a positioning hole (8), the surface of the rack (7) is engaged with a gear (9), both sides of the gear (9) are fixedly connected with connecting rods (10), the surface of each connecting rod (10) is movably connected with a supporting device (2) through a fixing block, one end of the connecting rod (10) is fixedly connected with a crank (11), and one side of the top plate (5) is fixedly connected with a first ladder (12).

2. An adjustable height library ladder as claimed in claim 1, wherein: one side sliding connection of a ladder (12) has No. two ladders (13), the fixed surface of a ladder (12) is connected with ladder pole (14), the fixed surface of No. two ladders (13) is connected with ladder pole (14).

3. An adjustable height library ladder as claimed in claim 2, wherein: protective sheath (15) have been cup jointed to the lower surface of No. two ladders (13), the connecting hole has been seted up on the surface of No. two ladders (13), the quantity of connecting hole is a plurality of.

4. An adjustable height library ladder as claimed in claim 1, wherein: a screw hole is formed in one side of the first ladder (12), a connecting bolt (16) is connected to the surface of the screw hole in a threaded mode, and a first ladder (12) penetrates through the second ladder (13) and is connected to one side of the connecting bolt (16) in a threaded mode.

5. An adjustable height library ladder as claimed in claim 1, wherein: a through hole is formed in one side of the supporting device (2), an inserting rod (17) is inserted into the surface of the through hole in an inserting mode, and the other end of the inserting rod (17) is connected with the lifting plate (4) in a clamping mode.

6. An adjustable height library ladder as claimed in claim 1, wherein: the lower surface of the base (1) is provided with a groove, the surface of the groove is movably connected with small wheels (18) through a rotating shaft, and the number of the small wheels (18) is four.