CN214997374U

CN214997374U - Folding ladder for construction site

Info

Publication number: CN214997374U
Application number: CN202120385264.9U
Authority: CN
Inventors: 李进虎; 钱志宽; 张泽方; 薛甲维
Original assignee: Guizhou Minzu University
Current assignee: Guizhou Minzu University
Priority date: 2021-02-19
Filing date: 2021-02-19
Publication date: 2021-12-03
Anticipated expiration: 2031-02-19

Abstract

The utility model relates to a folding ladder that building site used belongs to building appurtenance field. This folding ladder includes: a telescopic ladder surface; one ends of the two supporting pedals are respectively hinged with two ends of the ladder surface; go up the ladder frame, go up the ladder frame one end with the middle part of flexible ladder face is articulated, go up the ladder frame and go up to rotate and be equipped with a plurality of steps. The folding ladder has the characteristics of simple structure, simplicity, lightness, portability, strong adaptability and the like.

Description

Folding ladder for construction site

Technical Field

The utility model belongs to building appurtenance field, concretely relates to folding ladder that building site used.

Background

At present, the ladder is a traditional climbing tool, and a ladder with a character of someone and a ladder with a character of one are common. The double ladder is divided into a double-face climbing type double ladder and a single-face climbing type double ladder. The existing herringbone ladder is structurally composed of two ladder frames and an unfolding component regardless of a double-sided climbing type ladder or a single-sided climbing type ladder, wherein the two ladder frames are hinged at the top, and each ladder frame is composed of two upright posts and a step connected between the two upright posts; the folding part comprises two pairs of hinged strips which are symmetrically arranged at two sides of the ladder, each pair of hinged strips is formed by hinging two connecting strips, and the two hinged strips are connected on the upright posts of the two ladder frames. When the two ladder frames are unfolded, the hinge strip is unfolded until the two ladder frames are linear, and the two ladder frames are pulled by the limit length of the hinge strip, so that the two ladder frames are positioned at a certain angle; when the two ladder frames are folded, the hinge bars are also folded.

The existing ladder has the following defects: in the prior art, the unfolding part is arranged at the upper part of the ladder close to the top so as to shorten the length of the unfolding part, but on the other hand, the folding part is arranged at the upper part of the ladder close to the top so as to cause the stability of the ladder during unfolding and supporting and lower safety performance; however, if the folding part is only moved to the inner sides of the upright posts of the two ladder frames, the folding part will interfere with the steps when folded, the steps are required to be grooved to avoid the folding part, and the strength of the ladder is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned technical problem and provide a folding ladder that building site used, have simple structure, simple and easy light and handy, portable, characteristics such as strong adaptability.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a folding ladder for a construction site, comprising:

a telescopic ladder surface;

one ends of the two supporting pedals are respectively hinged with two ends of the telescopic ladder surface;

go up the ladder frame, go up the ladder frame one end with the middle part of flexible ladder face is articulated, go up the ladder frame and go up to rotate and be equipped with a plurality of steps.

The utility model has the advantages that: (1) the folding ladder can be unfolded and folded quickly and conveniently, so that the folding ladder is very convenient to use and carry;

(2) the folding ladder has simple structure and convenient operation, and can be independently operated by a single person;

(3) the folding ladder is simple, light, convenient to carry, strong in adaptability, free of severe requirements on use environments and high in safety performance.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, the device also comprises an adjusting component used for adjusting the rotation angle of the two supporting pedals, and the output end of the adjusting component is connected with the two supporting pedals.

The beneficial effect of adopting the further scheme is that: the rotation angle of the two supporting pedals can be adjusted, so that the two supporting pedals can keep supporting effect, and the stability is better.

Furthermore, the adjusting part comprises a telescopic supporting rod and a tightening part, one end of the telescopic supporting rod is rotatably connected with the telescopic ladder surface, the other end of the telescopic supporting rod is rotatably connected with one of the supporting pedals, two ends of the tightening part are respectively connected with the two supporting pedals, and the angle of the supporting pedals is adjusted by the tightening part.

The beneficial effect of adopting the further scheme is that: the rotation angles of the two supporting pedals can be controlled, so that the stability is better.

Furthermore, flexible bracing piece includes outer tube and interior slide bar, the one end of interior slide bar slides in the one end of outer tube, the other end of interior slide bar with flexible ladder face rotates to be connected, the other end and one of outer tube support the footboard and rotate to be connected, be equipped with the spring pin on the interior slide bar, be equipped with on the outer tube with the cooperation of spring pin will a plurality of locking holes of interior slide bar locking.

The beneficial effect of adopting the further scheme is that: the support pedal can be extended or shortened according to the rotation of the support pedal, and the support pedal is fixed.

Furthermore, the tightening part comprises a tightening bolt and two steel wire ropes, one ends of the two steel wire ropes are fixedly connected with two ends of the tightening bolt respectively, and the other ends of the two steel wire ropes are connected with the two support pedals respectively.

The beneficial effect of adopting the further scheme is that: the tightening and the adjustment are very convenient.

Furthermore, flexible tread includes support frame and tensile frame, tensile frame one end with the one end sliding connection of support frame, two the one end of supporting the footboard respectively with the other end of tensile frame with the other end of support frame rotates and is connected.

The beneficial effect of adopting the further scheme is that: the length of the telescopic ladder surface can be adjusted as required to adapt to different use conditions.

Furthermore, one end of the ladder-climbing frame is rotatably connected with one end of the supporting frame through a rotating part.

The beneficial effect of adopting the further scheme is that: do benefit to the rotation of going up the ladder frame relative support frame, can restrict the turned angle of going up the ladder frame.

Further, the steps comprise a second-level step and a third-level step, one end of the second-level step and one end of the third-level step are both rotatably connected with the upper ladder frame, and the third-level step is located above the second-level step.

The beneficial effect of adopting the further scheme is that: the corresponding steps can be selected automatically according to the needs, and the operation is very convenient.

Furthermore, it is equipped with tertiary ladder leg to rotate on the tertiary step, the one end of tertiary ladder leg with the bottom of tertiary step rotates to be connected, the other end with the joint of second grade step.

The beneficial effect of adopting the further scheme is that: the support to the three steps is facilitated.

Furthermore, the second-level step is rotatably provided with a second-level ladder leg, one end of the second-level ladder leg is rotatably connected with the bottom end of the second-level step, and the other end of the second-level ladder leg is connected with the support frame in a clamping mode.

The beneficial effect of adopting the further scheme is that: the support to the second-level step is facilitated.

Drawings

Fig. 1 is a schematic view of the folding ladder of the present invention;

fig. 2 is a folding schematic view of the folding ladder of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a support frame; 2. going up a ladder; 3. a second step; 4. two-stage ladder legs; 5. a third step; 6. three-stage ladder legs; 7. a stretching frame; 8. a support pedal; 9. a wire rope; 10. tightening the bolts; 11. a telescopic support rod; 12. a spring pin; 13. a rotating member; 14. a fixed seat.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Examples

As shown in fig. 1 and 2, the present embodiment provides a folding ladder for a construction site, including: a telescopic ladder face, two supporting pedals 8 and an upper ladder frame 2.

One end of each of the two supporting pedals 8 is hinged with the two ends of the telescopic ladder surface respectively. Go up the one end of ladder frame 2 and the middle part of flexible ladder face is articulated, goes up ladder frame 2 and goes up to rotate and be equipped with a plurality of steps.

Wherein, two support pedals 8 are used for supporting flexible tread, because two support pedals 8 are articulated with flexible tread to can rotate two support pedals 8 foldingly, accomodate. The flexible tread can extend or shorten, when needs use, the extension can, when needs are accomodate, shorten can, can conveniently reduce the volume of folding ladder, carry. Wherein go up ladder frame 2 and flexible tread articulated, can be when needs use, will go up ladder frame 2 and rotate the expansion, use, when need not use, rotate folding and accomodate. A plurality of steps can be used for standing, makes things convenient for personnel to operate. When the multifunctional desk is needed to be used, the desk can be rotated out of the corresponding step, and the use is very convenient.

The effect of the technical scheme of this embodiment is that, this folding ladder can carry out quick convenient expansion and folding for it is very convenient when using, also very convenient when needs carry. The folding ladder has simple structure and convenient operation, and can be independently operated by a single person. The folding ladder is simple, light, convenient to carry, strong in adaptability, free of severe requirements on use environments and high in safety performance.

Preferably, the present embodiment further comprises an adjusting component for adjusting the rotation angle of the two support pedals 8, and the output end of the adjusting component is connected with the two support pedals 8. The adjusting part can adjust the rotation angle of the two supporting pedals 8, so that the two supporting pedals 8 can keep supporting, and the stability is better.

Preferably, in this embodiment, the adjusting component includes a telescopic supporting rod 11 and a tightening component, one end of the telescopic supporting rod 11 is rotatably connected to the telescopic tread, the other end of the telescopic supporting rod is rotatably connected to one supporting pedal 8, two ends of the tightening component are respectively connected to two supporting pedals 8, and the angle of the two supporting pedals 8 is adjusted by the tightening component. Wherein flexible bracing piece 11 is used for locking a support footboard 8, and two support footboards 8 constitute wholly through tightening up the part for to two support footboard 8's locking, stability is better.

Preferably, in this embodiment, the telescopic support rod 11 includes an outer sleeve and an inner slide rod, one end of the inner slide rod slides into one end of the outer sleeve, the other end of the inner slide rod is rotatably connected with the telescopic ladder surface, the other end of the outer sleeve is rotatably connected with one support pedal 8, the inner slide rod is provided with a spring pin 12, and the outer sleeve is provided with a plurality of locking holes which are matched with the spring pin 12 to lock the inner slide rod.

Wherein, the both ends of outer tube are uncovered for interior slide bar can be free slide in the outer tube, realizes extension or shorten. Wherein, outer tube and interior slide bar rotate with flexible tread and a support footboard 8 respectively and are connected for along with support footboard 8 rotates to keep its locking effect. The plurality of locking holes are arranged in a row along the length direction of the outer sleeve, when the inner sliding rod slides to a proper position, the support pedal 8 rotates to a proper position, the spring pin 12 is clamped into the corresponding locking hole, the inner sliding rod is locked, and therefore the corresponding support pedal 8 is locked.

Preferably, in this embodiment, the tightening member includes a tightening bolt 10 and two wire ropes 9, one end of each of the two wire ropes 9 is fixedly connected to two ends of the tightening bolt 10, and the other end of each of the two wire ropes 9 is connected to two support pedals 8. The two support pedals 8 can be tightened by adjusting the tightening bolts 10, and the supporting force of the two support pedals 8 can be ensured, so that the stability is better. When the two support pedals 8 are adjusted to rotate and unfold, the two steel wire ropes 9 are in a tightened state. When the two supporting pedals 8 are rotated and folded, the two steel cables 9 are in a relaxed state. Wherein, all be equipped with the fixing base 14 that is used for being connected with two wire rope 9 on two support footboard 8, the other end of two wire rope 9 is connected with two fixing bases 14 respectively.

Preferably, in this embodiment, the telescopic tread comprises a support frame 1 and a stretching frame 7, one end of the stretching frame 7 is slidably connected with one end of the support frame 1, and one ends of two supporting pedals 8 are rotatably connected with the other end of the stretching frame 7 and the other end of the support frame 1 respectively. The telescopic ladder surface can be conveniently unfolded through the sliding stretching frame 7, and the use is very convenient. Wherein, the supporting frame 1 is provided with a locking bolt for locking the stretching frame 7.

Preferably, in this embodiment, one end of the going-up frame 2 is rotatably connected to one end of the supporting frame 1 through a rotating member 13. Thereby conveniently go up ladder frame 2's rotation and expand and rotate foldingly, can improve through rotating piece 13 and rotate the steadiness, improve the stability of whole folding leg. Wherein, rotate the turned piece 13 and can restrict the turned angle of going up ladder frame 2, support frame 1 can also set up the bolt that is used for locking going up ladder frame 2.

Preferably, in this embodiment, the step includes second step 3 and third step 5, and the one end of second step 3 and third step 5 all is connected with going up ladder frame 2 rotation, and third step 5 is located second step 3 top. The corresponding steps can be selected automatically according to the needs, and the operation is very convenient.

Preferably, in this embodiment, tertiary ladder leg 6 rotates on tertiary step 5 and is equipped with, and the one end of tertiary ladder leg 6 rotates with the bottom of tertiary step 5 to be connected, and the other end and second grade step 3 joint. The three-stage step 5 can be supported by the three-stage ladder legs 6. Wherein, be equipped with first draw-in groove on the second grade step 3, the other end card of tertiary ladder leg 6 is gone into to correspond first draw-in groove in, realizes the support to tertiary step 5 for constructor can be good stand.

Preferably, in this embodiment, second grade step 3 is last to rotate and is equipped with second grade ladder leg 4, and second grade ladder leg 4's one end is rotated with second grade step 3's bottom and is connected, the other end and support frame 1 joint. The second-level step 3 can be supported by the provided second-level ladder legs 4. Wherein, be equipped with the second draw-in groove on the support frame 1, the other end card of second grade ladder leg 4 is gone into to correspond in the second draw-in groove, realizes the support to second grade step 3 for constructor can be good stand.

The folding ladder comprises the following steps.

The unfolding operation is that the ladder is inverted in the first step, the two supporting pedals 8 are sequentially pulled open, the inner sliding rod slides in the outer sleeve, and the spring pin 12 on the inner sliding rod is clamped into the corresponding locking hole to realize locking. And in the second step, the ladder is vertically placed, and after the stretching frame 7 is pulled to a proper position, the stretching frame 7 is locked through a locking bolt. The third step: the ladder is placed upright, the ladder ascending frame 2 is rotated, the ladder ascending frame 2 is unfolded, and the ladder ascending frame 2 is supported by the rotating piece 13. And the second-level step 3 and the third-level step 5 are rotated, and the second-level ladder leg 4 and the third-level ladder leg 6 are clamped into the corresponding first clamping groove and second clamping groove, so that the second-level step 3 and the third-level step 5 are supported and fixed.

The folding operation is that the second-stage ladder leg 4 and the third-stage ladder leg 6 are folded in the first step, and the upper ladder frame 2 is rotated and retracted. And secondly, vertically placing the ladder, screwing out the locking bolt, sliding the stretching frame 7 back to the support frame 1, slightly pressing the two support pedals 8, and contracting and locking the telescopic support rods 11. And thirdly, horizontally placing the ladder and finishing the operation.

In the description of the present invention, it is to be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A folding ladder for a construction site, comprising:

a telescopic ladder surface;

one ends of the two supporting pedals (8) are respectively hinged with the two ends of the telescopic ladder surface;

go up ladder frame (2), go up the one end of ladder frame (2) with the middle part of flexible ladder face is articulated, go up ladder frame (2) and go up to rotate and be equipped with a plurality of steps.

2. The ladder as claimed in claim 1, further comprising an adjusting member for adjusting the rotation angle of the two support steps (8), the output end of the adjusting member being connected to the two support steps (8).

3. The ladder for construction sites as claimed in claim 2, wherein the adjusting means comprises a telescopic support bar (11) and a tightening means, one end of the telescopic support bar (11) is rotatably connected to the telescopic tread and the other end is rotatably connected to one of the support steps (8), and both ends of the tightening means are respectively connected to the two support steps (8), and the angle of the two support steps (8) is adjusted by the tightening means.

4. The folding ladder for construction sites according to claim 3, characterized in that the telescopic support rod (11) comprises an outer sleeve and an inner slide rod, one end of the inner slide rod slides into one end of the outer sleeve, the other end of the inner slide rod is rotatably connected with the telescopic ladder surface, the other end of the outer sleeve is rotatably connected with one of the support pedals (8), the inner slide rod is provided with a spring pin (12), and the outer sleeve is provided with a plurality of locking holes which are matched with the spring pin (12) to lock the inner slide rod.

5. The folding ladder for construction sites according to claim 3, characterized in that the tightening means comprises a tightening bolt (10) and two wire ropes (9), one end of each of the two wire ropes (9) is fixedly connected to both ends of the tightening bolt (10), and the other end of each of the two wire ropes (9) is connected to each of the two support steps (8).

6. The folding ladder for construction sites according to claim 1, characterized in that the telescopic ladder face comprises a support frame (1) and a stretching frame (7), one end of the stretching frame (7) is connected with one end of the support frame (1) in a sliding way, and one ends of the two supporting pedals (8) are respectively connected with the other end of the stretching frame (7) and the other end of the support frame (1) in a rotating way.

7. The ladder as claimed in claim 6, characterized in that one end of the upper ladder frame (2) is rotatably connected to one end of the support frame (1) by means of a rotary member (13).

8. The folding ladder for construction sites according to claim 7, characterized in that the steps comprise a second step (3) and a third step (5), one end of the second step (3) and one end of the third step (5) are both rotatably connected with the upper ladder frame (2), and the third step (5) is located above the second step (3).

9. The folding ladder for construction sites according to claim 8, characterized in that three-level ladder legs (6) are rotatably arranged on the three-level steps (5), one end of each three-level ladder leg (6) is rotatably connected with the bottom end of the three-level step (5), and the other end of each three-level ladder leg is clamped with the two-level step (3).

10. The folding ladder for construction sites according to claim 9, characterized in that the second step (3) is rotatably provided with a second step leg (4), one end of the second step leg (4) is rotatably connected with the bottom end of the second step (3), and the other end is clamped with the support frame (1).