CN213627404U

CN213627404U - Telescopic platform ladder

Info

Publication number: CN213627404U
Application number: CN202022022791.1U
Authority: CN
Inventors: 施琼燕
Original assignee: Zhangjiagang Zhongxin Machinery Co ltd
Current assignee: Zhangjiagang Zhongxin Machinery Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-07-06
Anticipated expiration: 2030-09-16

Abstract

The utility model discloses a flexible platform ladder, including inner ladder foreleg stand, outer ladder foreleg stand, inner ladder hind leg stand and outer ladder hind leg stand, the total amount that inner ladder foreleg stand, outer ladder foreleg stand, inner ladder hind leg stand and outer ladder hind leg stand set up is two, and the bottom position movable mounting that leans on between two inner ladder foreleg stands has the inner ladder to mark time. This flexible platform ladder, leg regulation locating hole around through the inner ladder, adjust the location insurance, the gag lever post, spacing movable block, a spring, the connecting block, a slide rail, the design of leg stand top reinforcement around slider and the outer ladder, make the platform ladder have flexible function, can remove in the slide rail through the slider, adjust the height of inner ladder front leg stand and inner ladder back leg stand, so that the user removes this platform ladder to the height that is fit for, thereby scramble, and simultaneously, can play effectual spacing fixed effect to inner ladder front leg stand and inner ladder back leg stand, thereby improve the stability of climbing.

Description

Telescopic platform ladder

Technical Field

The utility model relates to a ladder technical field specifically is a telescopic platform ladder.

Background

The ladder is characterized in that two long thick rods are used as edges, and a cross rod suitable for climbing transversely penetrates through the middle of the ladder and is used for climbing. Wherein, the platform ladder belongs to one kind of ladder.

Traditional platform ladder function singleness, life is shorter, simultaneously, does not possess flexible characteristics mostly, when the user does not use, can not convenient to use person with it shrink to can occupy most storage space, also not convenient to use person's carrying is not satisfied current user's user demand. Therefore, we propose a telescopic platform ladder.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flexible platform ladder to propose traditional platform ladder function singleness among the above-mentioned background of solution, life is shorter, simultaneously, does not possess flexible characteristics mostly, when the user does not use, can not convenient to use person with it shrink, thereby can occupy most storage space, also not convenient to use person's carrying, and the problem that does not satisfy current user demand.

In order to achieve the above object, the utility model provides a following technical scheme: a telescopic platform ladder comprises an inner ladder front leg stand column, an outer ladder front leg stand column, an inner ladder rear leg stand column and an outer ladder rear leg stand column, wherein the total quantity of the inner ladder front leg stand column, the outer ladder front leg stand column, the inner ladder rear leg stand column and the outer ladder rear leg stand column is two, an inner ladder step is movably arranged at the position, close to the bottom, between the two inner ladder front leg stand columns, one side, opposite to each other, of the two outer ladder front leg stand columns and one side, opposite to each other, of the two outer ladder rear leg stand columns, outer ladder reinforcing members are respectively arranged at the opposite sides of the two inner ladder front leg stand columns and the opposite sides of the two inner ladder rear leg stand columns, the two outer ladder front leg stand columns and the two outer ladder rear leg stand columns are movably connected through the four outer ladder reinforcing members, slide rails are respectively arranged at the opposite sides of the two outer ladder front leg stand columns and the opposite to the two outer ladder rear leg stand columns, and, the outer ladder reinforcement comprises outer ladder front and rear leg stand top reinforcements, a connecting pipe is fixedly arranged between two outer ladder rear leg stands and is controlled by an inner ladder rear leg stand, a positioning adjusting safety is movably arranged on one side of each of the two outer ladder front and rear leg stand top reinforcements, the positioning adjusting safety comprises a limiting rod, one side of the surface of the limiting rod is slidably connected with a limiting movable block, a connecting block is slidably connected to the other side of the surface of the limiting rod, a spring is sleeved on the surface of the limiting rod, the two sides of the spring are fixedly connected with the limiting movable blocks and the connecting block respectively, a clamping block is movably arranged on the position of the limiting rod close to the other side, outer ladder top treading, outer ladder first treading, outer ladder second treading and outer ladder third treading are movably arranged at the front ends of the two outer ladder front leg stands from top to bottom in sequence, outer ladder front leg inner top treading, outer ladder rear leg inner treading, outer ladder, The first mark time in the outer ladder foreleg, the second mark time in the outer ladder foreleg and the third mark time in the outer ladder foreleg, and the top position movable mounting that leans on of two outer ladder hind leg stand rear sides has outer ladder hind leg top to mark time, and the bottom position movable mounting that leans on of two outer ladder hind leg stand rear sides has outer ladder hind leg to mark time, and the top position movable mounting that leans on of two outer ladder hind leg stands and two inner ladder hind leg stand front sides has outer ladder hind leg stand to control the connecting piece, outer ladder hind leg top is marked time and outer ladder hind leg is marked time between fixedly connected with outer ladder hind leg stand bracing, and the equal fixed mounting in top of two inner ladder hind leg stands has inner ladder hind leg top reinforcement, and the top position movable mounting that leans on between two inner ladder foreleg stands and two inner ladder hind leg stands is mutually backed one side has all seted up inner ladder foreleg adjusting hole.

Preferably, the top parts of the two inner ladder front leg upright posts are fixedly provided with handrail plates.

Preferably, the bottoms of the inner ladder front leg stand column, the outer ladder front leg stand column, the inner ladder rear leg stand column and the outer ladder rear leg stand column are fixedly connected with non-slip mats.

Preferably, the bottom of the rear sides of the two outer ladder front leg stand columns is movably connected with an outer ladder front leg bottom reinforcing plate, and the top of the two outer ladder front leg bottom reinforcing plates is movably connected with the bottom of one side of the two inner ladder front leg stand columns in a back-to-back mode respectively.

Preferably, the bottom of the rear sides of the two outer ladder rear leg stand columns is movably connected with an outer ladder rear leg bottom reinforcing plate, and the top of the two outer ladder rear leg bottom reinforcing plates is movably connected with the bottom of one side of the two inner ladder rear leg stand columns in a back-to-back mode respectively.

Preferably, the position, close to the top, of the inner ladder front leg upright post is movably connected with the top of the inner ladder rear leg top reinforcing member through an inner ladder front and rear leg connecting piece.

Compared with the prior art, the beneficial effects of the utility model are that:

the telescopic platform ladder has the telescopic function through the design of the front and rear leg adjusting positioning holes of the inner ladder, the adjusting positioning safety, the limiting rods, the limiting movable blocks, the springs, the connecting blocks, the slide rails, the slide blocks and the reinforcing parts at the tops of the front and rear leg stand columns of the outer ladder, the platform ladder can move in the slide rails through the slide blocks to adjust the heights of the front leg stand column and the rear leg stand column of the inner ladder, so that a user can move the platform ladder to a proper height to climb the platform ladder, meanwhile, the front leg stand column and the rear leg stand column of the inner ladder can be effectively limited and fixed, the climbing stability is improved, the user is protected, when the platform ladder is not used, the user can contract the platform ladder to be convenient to store the platform ladder, the use requirements of the existing user are met, the materials adopted by the front leg stand column of the inner ladder, the rear leg stand column of the inner ladder, the front leg stand column of the outer ladder and the rear leg stand, make this platform ladder have salt and alkali resistance, protection against electric shock, insulating good advantage, the effectual life who improves this platform ladder can be used for a long time by the user.

Drawings

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

FIG. 2 is a side perspective view of the structure of the present invention;

fig. 3 is an enlarged partial view of a in fig. 2 according to the present invention;

FIG. 4 is a side view of the structure of the present invention;

fig. 5 is a partially enlarged schematic view of B in fig. 4 according to the present invention;

fig. 6 is a schematic structural diagram of the adjusting positioning safety device of the present invention.

In the figure: 1. an inner ladder front leg upright post; 2. an inner ladder step; 3. an outer ladder reinforcement; 4. an outer ladder front leg upright post; 5. the outer ladder top is stepped; 6. a first step of the outer ladder; 7. the second step of the outer ladder; 8. the third step of the outer ladder; 9. the front leg of the outer ladder is internally provided with a step; 10. a first step in the front leg of the outer ladder; 11. a second step is arranged in the front leg of the outer ladder; 12. a third step is arranged in the front leg of the outer ladder; 13. a reinforcing plate is arranged at the bottom of the front leg of the outer ladder; 14. a reinforcing plate is arranged at the bottom of the rear leg of the outer ladder; 15. front and rear leg connecting pieces of the inner ladder; 16. a reinforcing member at the top of the rear leg of the inner ladder; 17. an inner ladder rear leg upright post; 18. the left and right connecting pipes of the inner ladder rear leg upright post; 19. reinforcing members at the tops of upright posts of front and rear legs of the outer ladder; 20. an outer ladder rear leg upright post; 21. the outer ladder rear leg upright post inclined strut; 22. left and right connecting pieces of the outer ladder rear leg upright post; 23. the back leg of the outer ladder is stepped; 24. adjusting positioning holes of the front leg and the rear leg of the inner ladder; 25. adjusting and positioning insurance; 26. an inner ladder top step; 27. a handrail plate; 28. a non-slip mat; 29. the back leg of the outer ladder is stepped; 30. a slide rail; 31. a slider; 32. a limiting rod; 33. a limiting movable block; 34. connecting blocks; 35. a spring; 36. and (7) clamping blocks.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a telescopic platform ladder comprises an inner ladder front leg upright post 1, an outer ladder front leg upright post 4, an inner ladder rear leg upright post 17 and an outer ladder rear leg upright post 20, wherein the total quantity of the inner ladder front leg upright post 1, the outer ladder front leg upright post 4, the inner ladder rear leg upright post 17 and the outer ladder rear leg upright post 20 is two, an inner ladder step 2 is movably arranged at the position near the bottom between the two inner ladder front leg upright posts 1, outer ladder reinforcements 3 are respectively arranged at one side of the two outer ladder front leg upright posts 4 opposite to each other and one side of the two outer ladder rear leg upright posts 20 opposite to each other, the central positions of the two inner ladder front leg upright posts 1 opposite to each other and the central positions of the two inner ladder rear leg upright posts 17 opposite to each other are movably connected with the two outer ladder front leg upright posts 4 and the two outer ladder rear leg upright posts 20 through four outer ladder reinforcements 3, slide rails 30 are respectively arranged at one side of the two outer ladder front leg upright posts 4 and one side of the two outer ladder rear, the slide rail 30 is internally and slidably connected with a slide block 31, the outer ladder reinforcement 3 comprises outer ladder front and rear leg upright post top reinforcements 19, an inner ladder rear leg upright post left and right connecting pipe 18 is fixedly arranged between the two outer ladder rear leg upright posts 20, an adjusting and positioning safety 25 is movably arranged on one side of the two outer ladder front and rear leg upright post top reinforcements 19 opposite to each other, the adjusting and positioning safety 25 comprises a limiting rod 32, one side of the surface of the limiting rod 32 is slidably connected with a limiting movable block 33, the other side of the surface of the limiting rod 32 is slidably connected with a connecting block 34, the surface of the limiting rod 32 is sleeved with a spring 35, the two sides of the spring 35 are respectively and fixedly connected with the limiting movable block 33 and the connecting block 34, a clamping block 36 is movably arranged at the position close to the other side of the limiting rod 32, the front ends of the two outer ladder front leg upright posts 4 are sequentially and movably arranged with an outer ladder top step 5, the rear ends of two outer ladder front leg upright posts 4 are movably provided with an outer ladder front leg inner top step 9, an outer ladder front leg inner first step 10, an outer ladder front leg inner second step 11 and an outer ladder front leg inner third step 12 from top to bottom in sequence, the top positions of the rear sides of the two outer ladder rear leg upright posts 20 are movably provided with an outer ladder rear leg top step 29, the bottom positions of the rear sides of the two outer ladder rear leg upright posts 20 are movably provided with an outer ladder rear leg step 23, the top positions of the front sides of the two outer ladder rear leg upright posts 20 and the two inner ladder rear leg upright posts 17 are movably provided with an outer ladder rear leg upright post left and right connecting piece 22, an outer ladder rear leg inclined support 21 is fixedly connected between the outer ladder rear leg top step 29 and the outer ladder rear leg step 23, the top parts of the two inner ladder rear leg upright posts 17 are fixedly provided with an inner ladder rear leg top 16, and the top position between the two inner ladder front leg upright posts 1 and the two inner ladder rear leg upright posts 17 is movably provided with an inner ladder top pedal 26, the inner ladder front and rear leg adjusting and positioning holes 24 are formed in the opposite sides of the two inner ladder rear leg upright posts 17.

The utility model discloses in: the top parts of the two inner ladder front leg upright posts 1 are fixedly provided with handrail plates 27; the design of handrail board 27 can be convenient for the user's climbing.

The utility model discloses in: the bottoms of the inner ladder front leg upright post 1, the outer ladder front leg upright post 4, the inner ladder rear leg upright post 17 and the outer ladder rear leg upright post 20 are fixedly connected with anti-skid pads 28; the non-slip mat 28 is designed to be non-slip.

The utility model discloses in: the bottoms of the rear sides of the two outer ladder front leg stand columns 4 are movably connected with outer ladder front leg bottom reinforcing plates 13, and the tops of the two outer ladder front leg bottom reinforcing plates 13 are respectively and movably connected with the bottoms of the sides, opposite to the two inner ladder front leg stand columns 1; the design of outer ladder foreleg bottom gusset plate 13 can play reinforced effect.

The utility model discloses in: the bottoms of the rear sides of the two outer ladder rear leg stand columns 20 are movably connected with outer ladder rear leg bottom reinforcing plates 14, and the tops of the two outer ladder rear leg bottom reinforcing plates 14 are respectively and movably connected with the bottoms of the opposite sides of the two inner ladder rear leg stand columns 17; the design of the reinforcing plate 14 at the bottom of the rear leg of the outer ladder can play a role in reinforcing.

The utility model discloses in: the position close to the top of the inner ladder front leg upright post 1 is movably connected with the top of an inner ladder rear leg top reinforcing piece 16 through an inner ladder front and rear leg connecting piece 15; through the design of the inner ladder front and rear leg connecting piece 15 and the inner ladder rear leg top reinforcing piece 16, the inner ladder front leg upright post 1 and the inner ladder rear leg upright post 17 can be connected.

The working principle is as follows: when this telescopic platform ladder was adjusted, the user at first pulled out from outer ladder front leg stand 4 and outer ladder back leg stand 20 with adjusting location insurance 25, make spacing movable block 33 remove on gag lever post 32, thereby contract spring 35, make the opposite side of adjusting location insurance 25 break away from inner ladder front and back leg regulation locating hole 24, then upwards or move down through with inner ladder front leg stand 1 and inner ladder back leg stand 17, make slider 31 upwards or move down in slide rail 30, thereby adjust the height of platform ladder, after adjusting, again will adjust location insurance 25 and install on outer ladder front and back leg stand top reinforcement 19, run through to the inside of inner ladder front and back leg regulation locating hole 24, inner ladder front leg stand 1, inner ladder back leg stand 17, outer ladder front leg stand 4 and outer ladder back leg stand 20 carry on spacingly.

In summary, the following steps: this telescopic platform ladder, through leg regulation locating hole 24 around the inner ladder, adjust location insurance 25, gag lever post 32, spacing movable block 33, spring 35, connecting block 34, slide rail 30, the design of slider 31 and outer ladder front and back leg stand top reinforcement 19, make the platform ladder have flexible function, can remove in slide rail 30 through slider 31, adjust the height of inner ladder front leg stand 1 and inner ladder back leg stand 17, so that the user moves this platform ladder to suitable height, thereby the climbing, simultaneously, can play effectual spacing fixed effect to inner ladder front leg stand 1 and inner ladder back leg stand 17, thereby improve the stability of climbing, play the effect of protection to the user, when not using, the user can contract it, so as to deposit, thereby the user demand of current user has been satisfied, inner ladder front leg stand 1, inner ladder back leg stand 17, The material that outer ladder front leg stand 4 and outer ladder back leg stand 20 adopted is glass fiber for this platform ladder has had salt and alkali resistance, protection against electric shock, advantage that insulating nature is good, the effectual life who improves this platform ladder can be used for a long time by the user.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The standard parts used in the application document can be purchased from the market, the specific connection mode of each part is connected by conventional means such as mature bolts, rivets, welding and the like in the prior art, machines, parts and equipment are of conventional types in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that detailed description is not given.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a telescopic platform ladder, includes that inner ladder foreleg stand (1), outer ladder foreleg stand (4), inner ladder hind leg stand (17) and outer ladder hind leg stand (20), its characterized in that: the total number of the inner ladder front leg upright posts (1), the outer ladder front leg upright posts (4), the inner ladder rear leg upright posts (17) and the outer ladder rear leg upright posts (20) is two, an inner ladder step (2) is movably arranged at the position close to the bottom between the two inner ladder front leg upright posts (1), outer ladder reinforcing members (3) are respectively arranged at one side of the two outer ladder front leg upright posts (4) opposite to each other and one side of the two outer ladder rear leg upright posts (20) opposite to each other, the central position close to one side of the two inner ladder front leg upright posts (1) opposite to each other and the central position close to one side of the two inner ladder rear leg upright posts (17) opposite to each other are movably connected with the two outer ladder front leg upright posts (4) and the two outer ladder rear leg upright posts (20) through the four outer ladder reinforcing members (3), slide rails (30) are respectively arranged at one side of the two outer ladder front leg upright posts (4) opposite to one side of the, the inner sliding connection of the sliding rail (30) is provided with a sliding block (31), the outer ladder reinforcing part (3) comprises an outer ladder front and rear leg stand column top reinforcing part (19), an inner ladder rear leg stand column left and right connecting pipe (18) is fixedly arranged between two outer ladder rear leg stand columns (20), one side of each of the two outer ladder front and rear leg stand column top reinforcing parts (19) back to each other is movably provided with an adjusting and positioning safety part (25), the adjusting and positioning safety part (25) comprises a limiting rod (32), one side of the surface of the limiting rod (32) is slidably connected with a limiting movable block (33), the other side of the surface of the limiting rod (32) is slidably connected with a connecting block (34), a spring (35) is sleeved on the surface of the limiting rod (32), the two sides of the spring (35) are respectively fixedly connected with the limiting movable block (33) and the connecting block (34), and a clamping block (36) is, the front ends of two outer ladder front leg upright posts (4) are sequentially and movably provided with an outer ladder top step (5), an outer ladder first step (6), an outer ladder second step (7) and an outer ladder third step (8) from top to bottom, the rear ends of the two outer ladder front leg upright posts (4) are sequentially and movably provided with an outer ladder front leg inner top step (9), an outer ladder front leg inner first step (10), an outer ladder front leg inner second step (11) and an outer ladder front leg inner third step (12) from top to bottom, the top positions near the rear sides of the two outer ladder rear leg upright posts (20) are movably provided with outer ladder rear leg top steps (29), the bottom positions near the rear sides of the two outer ladder rear leg upright posts (20) are movably provided with outer ladder rear leg steps (23), and the top positions near the front sides of the two outer ladder rear leg upright posts (20) and the two inner ladder rear leg upright posts (17) are movably provided with outer ladder rear leg left and right connecting pieces (22), outer ladder hind leg top is marked time (29) and outer ladder hind leg and is marked time (23) between fixedly connected with outer ladder hind leg stand bracing (21), the equal fixed mounting in top of two inner ladder hind leg stands (17) has inner ladder hind leg top reinforcement (16), have inner ladder top footboard (26) by top position movable mounting between two inner ladder foreleg stands (1) and two inner ladder hind leg stands (17), leg regulation locating hole (24) around the inner ladder has all been seted up to one side that two inner ladder hind leg stands (17) carried on the back mutually.

2. A telescoping platform ladder as claimed in claim 1, wherein: the top parts of the two inner ladder front leg upright posts (1) are fixedly provided with handrail plates (27).

3. A telescoping platform ladder as claimed in claim 1, wherein: the bottom of the inner ladder front leg column (1), the bottom of the outer ladder front leg column (4), the bottom of the inner ladder rear leg column (17) and the bottom of the outer ladder rear leg column (20) are fixedly connected with non-slip mats (28).

4. A telescoping platform ladder as claimed in claim 1, wherein: the bottom of the rear sides of the two outer ladder front leg stand columns (4) is movably connected with an outer ladder front leg bottom reinforcing plate (13), and the tops of the two outer ladder front leg bottom reinforcing plates (13) are respectively movably connected with the bottom of one side of the back of each other of the two inner ladder front leg stand columns (1).

5. A telescoping platform ladder as claimed in claim 1, wherein: the bottom of the rear sides of the two outer ladder rear leg stand columns (20) is movably connected with an outer ladder rear leg bottom reinforcing plate (14), and the tops of the two outer ladder rear leg bottom reinforcing plates (14) are respectively movably connected with the bottom of one side of the back of the two inner ladder rear leg stand columns (17).

6. A telescoping platform ladder as claimed in claim 1, wherein: the top of the inner ladder front leg upright post (1) is movably connected with the top of the inner ladder rear leg top reinforcing piece (16) through an inner ladder front and rear leg connecting piece (15).