CN211974121U - Assembled rotary ladder - Google Patents

Abstract

The utility model relates to the field of bridge construction, in particular to an assembled rotary ladder, which comprises a base, a plurality of upright posts, a plurality of stairs, a plurality of cross rods and inclined rods; the stand is vertically fixed in on the base, the horizontal pole is connected with two adjacent stands, the down tube span two at least horizontal poles and with the stand is connected, be equipped with a plurality of platforms that turn to in the space that the stand encloses, adjacent platform that turns to about stair connection, the stair of lowest department are connected the base with be closest to the platform that turns to of base. The utility model discloses an assembled changes ladder, each mutual joint of part accessible connecting piece closely cooperate, have saved the used time of installation greatly, have improved the efficiency of construction, and the security is high to can dismantle fast, convenient transportation.

Description

Assembled rotary ladder

[ technical field ] A method for producing a semiconductor device

The utility model relates to a bridge construction field especially relates to an assembled changes ladder.

[ background of the invention ]

In the bridge construction, for some temporary operation occasions, steel structure stairs are often used in the built building, and the steel structure stairs are not only required to be built conveniently, but also are convenient to dismantle after being used.

The existing steel structure stair generally adopts a standard specification formed by cutting steel sectional materials, welding and assembling are carried out on site, and once the steel sectional materials are disassembled, the materials cannot be reused, waste is large, the working efficiency is low, and the assembling and disassembling operation strength is high.

[ Utility model ] content

The utility model aims at providing an assembled commentaries on classics ladder to solve current steel construction stair, demolish the unable used repeatedly in back, cause the material extravagant, work efficiency is low moreover, the big problem of operation intensity.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides an assembled rotary ladder, which comprises a base, a plurality of upright posts, a plurality of stairs, a plurality of cross rods and inclined rods; the stand is longitudinally fixed on the base, the cross rods are connected with two adjacent stands, the inclined rods stretch over at least two cross rods and are connected with the stand, a plurality of steering platforms are arranged in a space enclosed by the stands, the stairs are connected with the adjacent steering platforms up and down, and the stairs at the lowest part are connected with the base and the steering platform closest to the base.

Optionally, the assembled rotary ladder comprises four upright posts, and the four upright posts form a ladder platform structure with the cross-sectional area gradually decreasing with the distance from the base.

Further, the stair comprises two supports and a plurality of pedals, two ends of each support are fixedly connected with the two adjacent steering platforms respectively, and the pedals are transversely connected with the two supports.

Optionally, a plurality of said pedals are equally spaced.

Optionally, the lowermost stair tread is seamlessly connected to the base.

Preferably, the pedal is connected with the bracket by means of bolts or welding.

Optionally, the cross bars are transversely connected with two adjacent upright posts, and the cross bars are arranged at equal intervals.

Preferably, the upright post and the cross bar are connected by a connecting pin.

Optionally, the steering platform is fixedly connected with the cross bar.

Furthermore, a protective guard is installed on one side, far away from the cross bar, of the stair.

Compared with the prior art, the utility model discloses possess following advantage:

1. the utility model provides an assembled rotary ladder, which comprises a base, a plurality of upright posts, a plurality of stairs, a plurality of cross rods and inclined rods; the stand is vertically fixed in on the base, the horizontal pole is connected with two adjacent stands, the down tube span two at least horizontal poles and with the stand is connected, be equipped with a plurality of platforms that turn to in the space that the stand encloses, adjacent platform that turns to about stair connection, the stair of lowest department are connected the base with be closest to the platform that turns to of base. The utility model discloses an assembled changes ladder, each mutual joint of part accessible connecting piece closely cooperate, have saved the used time of installation greatly, have improved the efficiency of construction, and the security is high to can dismantle fast, convenient transportation.

2. The utility model provides an assembled changes ladder, it includes four stands, four the stand forms the cross-sectional area along with keeping away from the base and the halfpace structure that reduces gradually to reduce the focus that the assembled changes the ladder, thereby guarantee the assembled stability that changes ladder overall structure, improve the security.

3. The utility model provides an assembled changes ladder, stair include two spinal branchs frame and a plurality of footboard, the support both ends respectively with two adjacent steering platform fixed connection, two spinal branchs frame of footboard transverse connection to ensure the fastness of footboard.

4. The utility model provides an assembled changes ladder, the stand with the horizontal pole passes through the connecting pin and connects to the quick dismantlement of the horizontal pole of being convenient for improves the efficiency of construction.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

[ description of the drawings ]

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of an assembled rotary ladder according to an embodiment of the present invention.

[ detailed description ] embodiments

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1, the utility model provides an assembled rotary ladder, which comprises a base 1, a plurality of upright posts 2, a plurality of cross rods 3, a plurality of stairs 4 and inclined rods 5; wherein, base 1, stand 2, stair 4, horizontal pole 3 and down tube 5 all can adopt steel frame construction, base 1 sets up on the ground, 2 longitudinal fixings in of stand 1 is last, and 2 lower extremes of stand and 1 fixed connection of base, horizontal pole 3 is connected with two adjacent stands 2, down tube 5 spanes two piece at least horizontal poles 3 and with adjacent two 2 slant connections of stand, it is concrete, the junction department of upper end horizontal pole 3 and stand 2 is connected to the one end of down tube 5, the junction department of lower extreme horizontal pole 3 and stand 2 is connected to the other end of down tube 5, and the slant sets up. The space that the stand 2 encloses is equipped with the platform 6 that turns to that a plurality of levels set up in, adjacent platform 6 turns to about stair 4 connects, and the stair 4 of lowest connects base 1 and the platform 6 that turns to that is closest to base 1.

The utility model discloses an assembled changes ladder, each mutual joint of part accessible connecting piece closely cooperate, have saved the used time of installation greatly, have improved the efficiency of construction, and the security is high to can dismantle fast, convenient transportation.

Optionally, the assembled rotary ladder comprises four upright posts 2, the lower ends of the four upright posts 2 are respectively fixed at the positions of four corners of the rectangular base 1, the four upright posts 2 form a vertically-placed step structure, the cross-sectional area of the step structure is gradually reduced along with the distance from the base 1, so that the gravity center of the assembled rotary ladder is reduced, the stability of the overall structure of the assembled rotary ladder is ensured, and the safety is improved.

Further, the stairway 4 comprises two brackets 41 and a plurality of brackets 42, two ends of each bracket 41 are respectively and fixedly connected with two adjacent steering platforms 6, the bracket 41 of the stairway 4 at the lowest position is fixedly connected with the base 1 and the steering platform 6 closest to the base 1, the brackets 42 are transversely and fixedly connected with the two brackets 41, and the distance between the brackets 42 is kept consistent. The present embodiment is to secure the firmness of the bracket 42 by fixedly connecting the bracket 42 to the two brackets 41 in the transverse direction.

Optionally, the support 42 of the lowest stair 4 is connected to the base 1 in a seamless manner, and the support 42 may be connected to the support 41 by bolts or welding, so that the support 42 can be detached quickly, and the construction efficiency is improved.

Optionally, the cross bars 3 are transversely connected to two adjacent columns 2, the longitudinal intervals of the cross bars 3 are kept consistent, and the left and right adjacent cross bars 3 are connected in pairs, so as to improve the stability of the overall framework of the fabricated staircase 4. In addition, stand 2 with 3 accessible connecting pins of horizontal pole are connected to be convenient for the quick dismantlement of horizontal pole 3, improve the efficiency of construction.

Optionally, the steering platform 6 is fixedly connected with the cross bars 3, and the corners of the steering platform 6 are aligned with and fixed to the corners formed by two adjacent cross bars 3, so as to ensure that the steering platform 6 is stably installed.

Further, a protective guard is installed on one side, far away from the cross rod 3, of the stair 4 so as to guarantee the personal safety of constructors and further provide the safety of the assembled stair 4.

Although a few exemplary embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these exemplary embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims (10)

1. An assembled rotary ladder is characterized by comprising a base, a plurality of upright posts, a plurality of stairs, a plurality of cross rods and inclined rods; wherein the content of the first and second substances,

the stand is vertically fixed in on the base, the horizontal pole is connected with two adjacent stands, the down tube span two at least horizontal poles and with the stand is connected, be equipped with a plurality of platforms that turn to in the space that the stand encloses, adjacent platform that turns to about stair connection, the stair of lowest department are connected the base with be closest to the platform that turns to of base.

2. The fabricated ladder of claim 1, comprising four uprights, the four uprights forming a landing structure having a cross-sectional area that decreases away from the base.

3. The prefabricated escalator as claimed in claim 1, wherein said stairs comprise two supports and a plurality of treads, both ends of said supports are fixedly connected to two adjacent steering platforms, respectively, and said treads laterally connect the two supports.

4. The fabricated ladder of claim 3, wherein a plurality of the treads are equally spaced.

5. The fabricated stairlift as claimed in claim 3, wherein the lowermost stairstep is seamlessly connected to the base.

6. The fabricated ladder of claim 3, wherein the step is connected to the bracket by bolts or welding.

7. The prefabricated rotary ladder of claim 1, wherein the cross bars transversely connect two adjacent vertical posts, and a plurality of the cross bars are arranged at equal intervals.

8. The fabricated ladder of claim 1, wherein the uprights and the cross-bar are connected by connecting pins.

9. The fabricated rotary ladder of claim 1, wherein the steering platform is fixedly connected to the crossbar.

10. The prefabricated escalator as claimed in claim 1, wherein a protective fence is installed on a side of the escalator remote from the cross bar.

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