CN112796650A

CN112796650A - Pedal with extension ladder device

Info

Publication number: CN112796650A
Application number: CN201911112218.5A
Authority: CN
Inventors: 苏颖志; 黄湘润
Original assignee: Kaiping Chuangyu Scaffolding Equipment Co ltd
Current assignee: Kaiping Chuangyu Scaffolding Equipment Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2021-05-14

Abstract

The invention discloses a pedal extension ladder device, which comprises an upper extension ladder and a lower extension ladder, wherein the upper extension ladder is arranged above the lower extension ladder in a sliding manner, the outer sides of one ends of the upper extension ladder and the lower extension ladder are respectively fixedly connected with a first aluminum corner sheet and a second aluminum corner sheet through stainless steel screws, the lower part of the first aluminum corner sheet protrudes out of the lower extension ladder, the upper part of the second aluminum corner sheet protrudes out of the upper extension ladder, the side surfaces of the first aluminum corner sheet and the second aluminum corner sheet are mutually limited and clamped, the upper extension ladder is provided with a jack, a pin post is inserted in the jack, a spring is sleeved above a convex ring of the pin post, the extension ladder anti-falling device adopts a simple structure to prevent the extension ladder from falling off, can realize the positioning and fixing of the extension ladder, can extend and shorten according to different requirements, and then is positioned and fixed through a positioning device, the positioning device can be pulled up when movement is required.

Description

Pedal with extension ladder device

Technical Field

The invention relates to the technical field of extension ladders, in particular to an extension ladder device with pedals.

Background

The traditional integrated ladder has fixed shape, the length of the ladder cannot be adjusted at will according to the height, the size is large, a lot of inconvenience exists in storage and transportation, the existing extension ladder is easy to fall off when extending, the use of the ladder is affected, and automatic positioning cannot be realized, so that the invention provides the extension ladder anti-falling device for solving the problems.

Disclosure of Invention

The present invention is directed to a ladder device with retractable pedal belts, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a pedal with extension ladder device comprises an upper extension ladder and a lower extension ladder, wherein the upper extension ladder is arranged above the lower extension ladder in a sliding manner, a sliding groove is formed in the upper portion of the lower extension ladder, a sliding rail is arranged below the upper extension ladder, the sliding rail and the sliding groove are in limited sliding connection with each other, the sliding rail is a T-shaped sliding rail, the sliding groove is a T-shaped sliding groove, the extension can be realized by mutual sliding arrangement between the upper extension ladder and the lower extension ladder, the outer sides of one ends of the upper extension ladder and the lower extension ladder are fixedly connected with a first angle aluminum sheet and a second angle aluminum sheet respectively through stainless steel screws, the lower portion of the first angle aluminum sheet protrudes onto the lower extension ladder, the upper portion of the second angle aluminum sheet protrudes onto the upper extension ladder, the side surfaces of the first angle aluminum sheet and the second angle aluminum sheet are in limited clamping connection with each other, and a first angle aluminum sheet and a second angle aluminum sheet are arranged, when going up the extension ladder and extending to certain degree with lower extension ladder, block each other between first angle aluminum sheet and the second angle aluminum sheet, prevent to go up the extension ladder and continue to extend with lower extension ladder, play the effect of anticreep.

Preferably, it has the jack to go up the extension ladder and go up to open, it has the round pin post to peg graft in the jack, the top of round pin post is provided with the portion of bending, be provided with the bulge loop on the round pin post, the top cover that the round pin post is located the bulge loop has the spring, it has the locating hole to open down on the extension ladder, match grafting each other between round pin post and the locating hole, the other end swing joint of extension ladder has the footboard down, screw fixedly connected with hook is passed through at the both ends of footboard.

Preferably, the slide rail is T-shaped, and the upper extension ladder and the slide rail are arranged integrally.

Preferably, the shape of first angle aluminum sheet and second angle aluminum sheet is L shape, go up the extension ladder and all cover the resin glue lid with the both ends of extension ladder down, the lower extreme of spring supports on the bulge loop, the upper end of spring supports the upper wall at last extension ladder.

Compared with the prior art, the invention has the following beneficial effects: the invention is characterized in that the arranged slide rail is a T-shaped slide rail, the arranged slide groove is a T-shaped slide groove, the upper extension ladder and the lower extension ladder are mutually slidably arranged to realize extension, the arranged first aluminum corner sheet and the second aluminum corner sheet are mutually clamped when the upper extension ladder and the lower extension ladder extend to a certain degree to prevent the upper extension ladder and the lower extension ladder from continuing to extend and play a role in preventing falling off, the pin column has certain elasticity through the arranged spring, the pin column is automatically inserted into the concave positioning hole after passing through the position of the positioning hole in the process of extending the upper extension ladder and the lower extension ladder, the pedal belt extension ladder device has reasonable design and simple structure, the extension and the shortening can be realized by adopting a simple structure, the positioning and the fixing of the extension ladder can be realized according to different requirements, and the extension and the shortening are further carried out by the positioning and the fixing device, the positioning device can be pulled up when movement is required.

Drawings

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

FIG. 2 is a schematic view of the present invention in a fixed state;

FIG. 3 is a schematic diagram of the active state structure of the present invention;

FIG. 4 is a schematic structural view of an aluminum corner plate according to the present invention;

fig. 5 is a schematic structural diagram of the present invention.

In the figure: 1. an extension ladder is arranged; 2. a telescopic ladder is arranged; 3. a slide rail; 4. a chute; 5. a first aluminum fillet sheet; 6. a second corner aluminum sheet; 7. stainless steel screws; 8. a jack; 9. a pin; 10. a bending part; 11. positioning holes; 12. a spring; 13. a convex ring; 14. and (5) covering with resin glue.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1-5, a pedal belt extension ladder device, comprising an upper extension ladder 1 and a lower extension ladder 2, wherein the upper extension ladder 1 is slidably disposed above the lower extension ladder 2, a sliding groove 4 is disposed above the lower extension ladder 2, a sliding rail 3 is disposed below the upper extension ladder 1, the sliding rail 3 and the sliding groove 4 are mutually connected in a limiting and sliding manner, it should be noted that the sliding rail 3 is a T-shaped sliding rail, the sliding groove 4 is a T-shaped sliding groove, and the upper extension ladder 1 and the lower extension ladder 2 are mutually slidably disposed to realize extension.

Go up the one end outside of extension ladder 1 and lower extension ladder 2 and respectively through stainless steel screw 7 fixedly connected with first angle aluminum sheet 5 and second angle aluminum sheet 6, the below of first angle aluminum sheet 5 is outstanding to the extension ladder 2 down on, the top of second angle aluminum sheet 6 is outstanding to last extension ladder 1 on, first angle aluminum sheet 5 and second angle aluminum sheet 6's the mutual spacing joint in side, the first angle aluminum sheet 5 and the second angle aluminum sheet 6 that set up, when going up extension ladder 1 and extending ladder 2 down and extending to the certain extent, block each other between first angle aluminum sheet 5 and the second angle aluminum sheet 6, prevent to go up extension ladder 1 and lower extension ladder 2 and continue to extend, play the effect of anticreep.

Specifically, the thickness of first angle aluminum sheet 5 and second angle aluminum sheet 6 is 3mm, and the position length of first angle aluminum sheet 5 and the mutual joint of second angle aluminum sheet 6 is 1 cm.

The upper extension ladder 1 is provided with a jack 8, a pin 9 is inserted into the jack 8, a bending part 10 is arranged above the pin 9, a convex ring 13 is arranged on the pin 9, a spring 12 is sleeved on the pin 9 above the convex ring 13, a positioning hole 11 is arranged on the lower extension ladder 2, the pin 9 and the positioning hole 11 are matched and spliced with each other, the other end of the lower extension ladder 2 is movably connected with a pedal 15, two ends of the pedal 15 are fixedly connected with hooks 16 through screws, it should be noted that when the upper extension ladder 1 and the lower extension ladder 2 are in a locking and fixing state, the bending part 10 at the upper end of the pin 9 is clamped on the side surface of the upper extension ladder 1, the lower end of the pin 9 extends into the positioning hole 11 to realize positioning, when the upper extension ladder 1 and the lower extension ladder 2 are in an active state, the bending part 10 at the upper end of the pin 9 is abutted to the upper extension ladder 1, at this time, the lower end of the pin 9 is pulled out of the positioning hole 11.

Specifically, the shape of slide rail 3 is T shape slide rail, it sets up as an organic whole with slide rail 3 to go up extension ladder 1, first angle aluminum sheet 5 and second angle aluminum sheet 6's thickness is 3mm, first angle aluminum sheet 5 and second angle aluminum sheet 6's shape is L shape, go up extension ladder 1 and the both ends of extension ladder 2 down and all be covered with resin glue lid 14, the lower extreme of spring 12 supports on bulge loop 13, the upper end of spring 12 supports the upper wall at last extension ladder 1, and spring 12 through setting up makes round pin post 9 have certain elasticity, at the in-process that last extension ladder 1 and extension ladder 2 extend down, and round pin post 9 is after the position of locating hole 11, inserts automatically in the concave locating hole 11. Can be according to the demand of difference, extension and shortening, it is fixed to fix a position through positioner again, and it is just right to pull up positioner when needs remove.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a footboard area extension ladder device, includes extension ladder (1) and lower extension ladder (2), its characterized in that: the upper extension ladder (1) is arranged above the lower extension ladder (2) in a sliding manner, a sliding groove (4) is arranged above the lower extension ladder (2), a sliding rail (3) is arranged below the upper extension ladder (1), the sliding rail (3) and the sliding groove (4) are in limited sliding connection with each other, the outer sides of one ends of the upper extension ladder (1) and the lower extension ladder (2) are fixedly connected with a first aluminum angle sheet (5) and a second aluminum angle sheet (6) through stainless steel screws (7), the lower side of the first aluminum angle sheet (5) protrudes onto the lower extension ladder (2), the upper side of the second aluminum angle sheet (6) protrudes onto the upper extension ladder (1), the side surfaces of the first aluminum angle sheet (5) and the second aluminum angle sheet (6) are in limited clamping connection with each other, a jack (8) is formed in the upper extension ladder (1), and a pin (9) is inserted into the jack (8), the top of round pin post (9) is provided with portion (10) of bending, be provided with bulge loop (13) on round pin post (9), the top cover that round pin post (9) are located bulge loop (13) has spring (12), it has locating hole (11) to open on extension ladder (2) down, match each other between round pin post (9) and locating hole (11) and peg graft, the other end swing joint of extension ladder (2) has footboard (15) down, screw fixedly connected with hook (16) is passed through at the both ends of footboard (15).

2. The step belt extension ladder device of claim 1, wherein: the slide rail (3) is T-shaped, and the upper extension ladder (1) and the slide rail (3) are arranged integrally.

3. The step belt extension ladder device of claim 1, wherein: the thickness of the first angle aluminum sheet (5) and the second angle aluminum sheet (6) is 2-4mm, and the first angle aluminum sheet (5) and the second angle aluminum sheet (6) are both L-shaped.

4. The step belt extension ladder device of claim 1, wherein: one end of the upper extension ladder (1) is covered with a resin rubber cover (14).

5. The step belt extension ladder device of claim 1, wherein: the lower end of the spring (12) abuts against the convex ring (13), and the upper end of the spring (12) abuts against the upper wall of the upper telescopic ladder (1).