CN212296190U

CN212296190U - Folding mobile ladder

Info

Publication number: CN212296190U
Application number: CN202020748709.0U
Authority: CN
Inventors: 周静
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2021-01-05
Anticipated expiration: 2030-05-08

Abstract

The utility model discloses a folding movable ladder, which comprises a ladder body, wherein the ladder body comprises a front ladder frame and a rear ladder frame; the front ladder frame comprises two front supporting rods which are vertically arranged, a plurality of pedals are arranged between the two front supporting rods and vertically spaced along the front supporting rods, and the rear ladder frame comprises two rear supporting rods which are vertically arranged; the frame is arranged on the ladder body and is close to the lower end of the ladder body; the frame comprises a fixed rod, two moving mechanisms and a fixed clamp, the fixed rod is fixedly arranged between the two rear supporting rods, the two moving mechanisms are arranged oppositely, one ends of the moving mechanisms are correspondingly hinged to the two ends of the fixed rod respectively, wheels are arranged at the lower ends of the moving mechanisms, the two ends of the fixed clamp are correspondingly fixed to the other ends of the two moving mechanisms respectively, and a clamping groove used for being clamped with a pedal is formed in one side of the fixed clamp; this application folding removal ladder removes conveniently, and is laborsaving to when need not removing, can fold the frame.

Description

Folding mobile ladder

Technical Field

The utility model relates to a ladder technical field, concretely relates to folding removal ladder.

Background

The ladder is convenient for aloft work, and the existing ladder is generally in a shape of Chinese character 'ren', can be folded, but needs to be carried manually when moving, and is inconvenient to move.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a folding removal ladder.

The utility model adopts the technical proposal that:

a folding movable ladder comprises a ladder body, wherein the ladder body comprises a front ladder frame and a rear ladder frame, and the upper ends of the front ladder frame and the rear ladder frame are fixed; the front ladder frame comprises two front support rods which are vertically arranged, a plurality of pedals are arranged between the two front support rods and vertically spaced along the front support rods, and the rear ladder frame comprises two rear support rods which are vertically arranged; the frame is arranged on the ladder body and is close to the lower end of the ladder body; the frame includes dead lever, moving mechanism and fixing clip, dead lever fixed mounting is between two back bracing pieces, moving mechanism is two, and two moving mechanism set up relatively, and moving mechanism's one end corresponds the both ends that articulate at the dead lever respectively, and moving mechanism's lower extreme is equipped with the wheel, the both ends of fixing clip correspond the other end of fixing at two moving mechanism respectively, and one side of fixing clip is equipped with the draw-in groove that is used for with the footboard block.

Further, the moving mechanism comprises a first cross rod, a second cross rod, a first vertical rod, a second vertical rod and wheels, the first cross rod and the second cross rod are arranged in parallel, the first vertical rod and the second vertical rod are arranged in parallel, the upper ends of the first vertical rod and the second vertical rod are hinged to the first cross rod, the lower ends of the first vertical rod and the second vertical rod are hinged to the second cross rod, and the wheels are arranged at the two ends of the second cross rod; one end of the first cross rod is hinged with the fixed rod, and the other end of the first cross rod is fixed with the fixed card.

Further, the moving mechanism further comprises a vertical lever, and the lower end of the vertical lever is fixed with the second vertical rod and hinged to the first cross rod.

Furthermore, the frame also comprises handrails which are of U-shaped structures, and two ends of each handrail are respectively hinged with the upper ends of the vertical levers of the two moving mechanisms.

Furthermore, the upper end of the vertical lever is provided with a limiting table, and the limiting table is positioned on the lower side of the handrail.

Furthermore, the number of the first vertical rods is two, and two ends of the two first vertical rods are respectively hinged to two sides of the first cross rod and two sides of the second cross rod; the number of the second vertical rods is two, and two ends of the two second vertical rods are hinged to two sides of the first cross rod and two sides of the second cross rod respectively.

Furthermore, the upper side of the first cross rod is hinged with the fixed rod through a hinge.

The pedal comprises a pedal body, a first cross rod and a second cross rod, wherein the pedal body is provided with a pedal body, the first cross rod is provided with a first connecting hole, the second cross rod is provided with a second connecting hole, the first connecting hole is connected with the second connecting hole, the second connecting hole is connected with the second cross rod through a bolt, and the first cross rod is connected with the second connecting hole through a bolt; the pedal is clamped in the clamping groove of the fixing card.

Further, still include the ladder frame of going up, the upper end that preceding ladder frame and back ladder add is fixed with the both ends of going up the ladder frame respectively.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:

additional aspects and advantages of the present application 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 present application.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a folding mobile ladder according to an embodiment of the present application;

fig. 2 is a schematic structural view of another state of the folding mobile ladder according to the embodiment of the present application;

FIG. 3 is a schematic view of a connection structure of a frame and a rear ladder frame according to an embodiment of the present invention;

FIG. 4 is a schematic view of a connection structure between a frame and a front ladder frame in an embodiment of the present application.

The front ladder frame 1, the front support rod 11, the pedal 12, the rear ladder frame 2, the rear support rod 22, the frame 3, the fixing rod 31, the moving mechanism 32, the first cross rod 321, the first vertical rod 322, the second cross rod 323, the second vertical rod 324, the wheels 325, the fixing clamp 33, the vertical lever 34, the handrail 35, the connecting pipe 37 and the upper ladder frame 4.

Detailed Description

Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the related art. Therefore, the present invention is an improvement of the prior art, which substantially lies in the connection relationship between hardware, not in the functions and methods themselves, that is, the present invention relates to a few functions and methods, but does not include the improvements proposed in the functions and methods themselves. The present invention is described for better illustration of the function and method for better understanding of the present invention.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Referring to fig. 1 and 2, the folding mobile ladder comprises a ladder body, wherein the ladder body comprises a front ladder frame 1 and a rear ladder frame 2, the upper ends of the front ladder frame 1 and the rear ladder frame 2 are fixed, the front ladder frame 1 comprises two front support rods 11 which are vertically arranged, a plurality of pedals 12 are arranged between the two front support rods 11 and along the front support rods 11 at intervals, and the rear ladder frame 2 comprises two rear support rods 22 which are vertically arranged; the frame 3 is arranged on the ladder body and is close to the lower end of the ladder body; the frame 3 includes dead lever 31, moving mechanism 32 and fixing clip 33, dead lever 31 fixed mounting is between two back bracing pieces 22, moving mechanism 32 is two, and two moving mechanism 32 set up relatively, and moving mechanism 32's one end corresponds the both ends that articulate at dead lever 31 respectively, and moving mechanism 32's lower extreme is equipped with wheel 325, and this wheel 325 is the universal wheel, fixing clip 33's both ends correspond the other end of fixing at two moving mechanism 32 respectively, and one side of fixing clip 33 is equipped with the draw-in groove that is used for with footboard 12 block.

According to the folding ladder, the frame 3 is arranged at a position close to the lower end of the ladder body, the fixing rod 31 of the frame 3 is fixed between the two rear supporting rods 22 of the rear ladder frame 2, one end of the moving mechanism 32 is hinged to the fixing rod 31, so that the moving mechanism 32 can be folded or unfolded around a hinged point, the other end of the moving mechanism 32 is fixed to the fixing clamp 33, and when the moving mechanism 32 is unfolded, the moving mechanism can be fixed to the pedal 12 of the front ladder frame 1 through the fixing clamp 33, so that the frame 3 is fixed; wheels 325 are arranged at the lower end of the frame 3, and when the frame 3 is opened, the ladder moves by rotating the wheels 325; this application folding removal ladder removes conveniently, and is laborsaving to when need not removing, can fold frame 3, occupation space is little.

The upper ends of the front ladder frame 1 and the rear ladder frame 2 can be directly or indirectly fixed. In one embodiment, the ladder further comprises an upper ladder frame 4, and the upper ends of the front ladder frame 1 and the rear ladder frame are respectively fixedly connected with two ends of the upper ladder frame 4. Specifically, the upper ladder frame 4 comprises two upper cross frames which are arranged in parallel, the upper cross frames are made of angle steel, the upper ends of two front support rods 11 of the front ladder frame 1 are fixed at one end of the corresponding upper cross frame through third bolts 41, and the upper ends of two rear support rods 22 of the rear ladder frame 2 are fixed at the other end of the corresponding upper cross frame through fourth bolts 42. The front ladder frame 1, the upper ladder frame 4 and the rear ladder frame 2 are opened to form a U-shaped structure. By adopting bolt fixing, when needing to be folded, the front ladder frame 1 and the rear ladder frame 2 can be folded by unscrewing the third bolt 41 and the fourth bolt 42, and after being folded, the wheels 325 of the frame 3 can be positioned between the pedals 12 of the front ladder frame 1.

Preferably, the moving mechanism 32 includes a first cross bar 321, a second cross bar 323, a first vertical bar 322, a second vertical bar 324 and wheels 325, the first cross bar 321 and the second cross bar 323 are arranged in parallel, the first vertical bar 322 and the second vertical bar 324 are arranged in parallel, the upper ends of the first vertical bar 322 and the second vertical bar 324 are hinged on the first cross bar 321, the lower ends of the first vertical bar 322 and the second vertical bar 324 are hinged on the second cross bar 323, and the wheels 325 are arranged at two ends of the second cross bar 323; one end of the first cross bar 321 is hinged to the fixing rod 31, and the other end is fixed to the fixing clip 33.

The first cross bar 321, the first vertical bar 322, the second cross bar 323 and the second vertical bar 324 are hinged to form a parallelogram structure, so that the moving mechanism 32 can be folded or unfolded.

Specifically, the number of the first vertical rods 322 is two, and two ends of the two first vertical rods 322 are respectively hinged to two sides of the first cross rod 321 and the second cross rod 323; the number of the second vertical rods 324 is two, and two ends of the two second vertical rods 324 are respectively hinged to two sides of the first cross rod 321 and the second cross rod 323.

The stability of the moving mechanism 32 can be improved by providing two first vertical rods 322 and two second vertical rods 324.

Preferably, the moving mechanism 32 further comprises a vertical lever 34, and a lower end of the vertical lever 34 is fixed to the second vertical rod 324 and hinged to the first cross rod 321. The frame 3 further comprises an armrest 35, the armrest 35 is of a U-shaped structure, and two ends of the armrest 35 are respectively hinged to the upper ends of the vertical levers 34 of the two moving mechanisms 32. The upper end of the vertical lever 34 is provided with a limit table which is positioned at the lower side of the handrail 35.

By providing vertical levers 34 and handrails 35, it is convenient to open the frame 3 and move the ladder. The lower end of the vertical lever 34 may be fixed to the second vertical bar 324 and hinged to the first cross bar 321, or may replace the second vertical bar 324, and the lower end thereof is directly hinged to the first cross bar 321 and the second cross bar 323, so that the state of the moving mechanism 32 with a parallelogram structure can be conveniently changed by controlling the vertical lever 34, thereby achieving folding or unfolding. Both ends of the armrest 35 are hinged to the upper ends of the vertical levers 34, respectively, and can rotate around the hinge point to change the angle between the armrest 35 and the vertical levers 34. A limit table is provided at an upper end of the vertical lever 34, and the limit table is located at a lower side of the handle 35 to limit the angle of rotation of the handle 35.

The distance between the first cross rod 321 and the lower ends of the front ladder frame 1 and the rear ladder frame 2 is smaller than the distance between the first cross rod 321 and the wheels 325, and when the frame 3 is opened and the first vertical rod 322 and the second vertical rod 324 are in a vertical state, the wheels 325 are supported on the ground, and the front ladder frame 1 and the rear ladder frame 2 are suspended in the air and are convenient to move; when the ladder does not need to be moved, the vertical lever 34 rotates the second vertical rod 324, so that the first vertical rod 322 and the second vertical rod 324 are in an inclined state, at the moment, the wheels 325 are suspended, the front ladder frame 1 and the rear ladder frame 2 are supported on the ground, and high-altitude operation can be carried out through the ladder.

Preferably, still articulate at the bearing diagonal pole between last ladder frame and back ladder frame, this bearing diagonal pole includes first down tube and second down tube, and the cooperation of second down tube is in first down tube, and can slide along with first down tube, when opening or folding ladder, changes the length of bearing diagonal pole.

Referring to fig. 3, both ends of the fixing rod 31 may be fixed between the two rear support rods 22 by welding. The upper side of the first cross bar 321 is hinged to the fixing rod 31 through a hinge, so that the frame 3 can rotate counterclockwise to fold.

Referring to fig. 4, the pedal device further includes a connecting pipe 37, the connecting pipe 37 is fixed on the lower side of the pedal 12, the connecting pipe 37 is in a rectangular hollow pipe structure, connecting holes are formed at the other ends of the connecting pipe 37 and the first cross bar 321, the other end of the first cross bar 321 is inserted into the connecting pipe 37, and a bolt passes through the connecting holes on the first cross bar 321 and the connecting pipe 37 to fix the first cross bar 321 and the connecting pipe 37; the pedal 12 is snapped into a snap groove of the retainer clip 33.

By arranging the connecting pipe 37, the other end of the first cross bar 321 is fixed with the connecting pipe 37 through a bolt, so that the pedal 12 can be firmly clamped in the clamping groove of the fixing clamp 33.

In order to conveniently pull up the bolt, a pull ring can be further arranged on the bolt, and the bolt can be conveniently pulled up by pulling the connecting ring.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral combinations thereof; may be an electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. 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 specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.

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, system, 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, systems, 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.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A folding movable ladder comprises a ladder body, wherein the ladder body comprises a front ladder frame (1) and a rear ladder frame (2), and the upper ends of the front ladder frame (1) and the rear ladder frame (2) are fixed; the front ladder frame (1) comprises two front supporting rods (11) which are vertically arranged, a plurality of pedals (12) are arranged between the two front supporting rods (11) and vertically spaced along the front supporting rods (11), and the rear ladder frame (2) comprises two rear supporting rods (22) which are vertically arranged; the ladder is characterized by also comprising a frame (3), wherein the frame (3) is arranged on the ladder body and is close to the lower end of the ladder body; frame (3) are including dead lever (31), moving mechanism (32) and fixing clip (33), dead lever (31) fixed mounting is between two back bracing pieces (22), moving mechanism (32) are two, and two moving mechanism (32) set up relatively, and the one end of moving mechanism (32) corresponds the both ends that articulate in dead lever (31) respectively, and the lower extreme of moving mechanism (32) is equipped with wheel (325), the both ends of fixing clip (33) correspond the other end of fixing at two moving mechanism (32) respectively, and one side of fixing clip (33) is equipped with the draw-in groove that is used for with footboard (12) block.

2. The folding mobile ladder of claim 1, characterized in that the moving mechanism (32) comprises a first cross bar (321), a second cross bar (323), a first vertical bar (322), a second vertical bar (324) and wheels (325), the first cross bar (321) and the second cross bar (323) are arranged in parallel, the first vertical bar (322) and the second vertical bar (324) are arranged in parallel, the upper ends of the first vertical bar (322) and the second vertical bar (324) are hinged on the first cross bar (321), the lower ends of the first vertical bar (322) and the second vertical bar (324) are hinged on the second cross bar (323), the wheels (325) are arranged at both ends of the second cross bar (323); one end of the first cross rod (321) is hinged with the fixed rod (31), and the other end of the first cross rod is fixed with the fixed clamp (33).

3. The folding mobile ladder of claim 2, characterized in that the moving mechanism (32) further comprises a vertical lever (34), the lower end of the vertical lever (34) being fixed with a second vertical bar (324) and hinged with a first cross bar (321).

4. The folding mobile ladder as claimed in claim 3, characterized in that the frame (3) further comprises a handrail (35), the handrail (35) is of a U-shaped structure, and two ends of the handrail (35) are respectively hinged with the upper ends of the vertical levers (34) of the two moving mechanisms (32).

5. The folding mobile ladder of claim 4, characterized in that the upper end of the vertical lever (34) is provided with a stop, which is located at the lower side of the handrail (35).

6. The folding mobile ladder as claimed in claim 2, characterized in that the number of the first vertical bars (322) is two, and two ends of the two first vertical bars (322) are respectively hinged on two sides of the first cross bar (321) and the second cross bar (323); the number of the second vertical rods (324) is two, and two ends of the two second vertical rods (324) are respectively hinged to two sides of the first cross rod (321) and the second cross rod (323).

7. The folding mobile ladder of claim 2, characterized in that the upper side of the first cross bar (321) is hinged with a fixed bar (31) by means of hinges.

8. The folding mobile ladder of claim 2, further comprising a connection pipe (37), the connection pipe (37) being fixed to a lower side of the step (12), the connection pipe (37) and the other end of the first cross bar (321) being provided with a connection hole, the other end of the first cross bar (321) being inserted into the connection pipe (37), and a latch passing through the connection holes of the first cross bar (321) and the connection pipe (37) to fix the first cross bar (321) and the connection pipe (37); the pedal (12) is clamped in the clamping groove of the fixing clamp (33).

9. The folding mobile ladder according to any one of claims 1 to 8, further comprising an upper ladder frame (4), wherein the upper ends of the front ladder frame (1) and the rear ladder frame are respectively fixed with the two ends of the upper ladder frame (4).