CN216767244U

CN216767244U - Prevent folding ladder for building of card thing

Info

Publication number: CN216767244U
Application number: CN202122892597.3U
Authority: CN
Inventors: 王露
Original assignee: CSCEC Strait Construction and Development Co Ltd
Current assignee: CSCEC Strait Construction and Development Co Ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-06-17
Anticipated expiration: 2031-11-24

Abstract

The utility model provides an anti-jamming folding ladder for buildings, which comprises two first ladder posts arranged oppositely, wherein the upper ends of the two first ladder posts are movably connected with second ladder posts through connecting assemblies respectively; a plurality of pedals are arranged between the two first ladder posts, between the two second ladder posts, between the two third ladder posts and between the two fourth ladder posts, and anti-skidding sleeves are fixed on the surfaces of the pedals; the utility model can effectively prevent small objects from being clamped in the clamping groove, and avoids the potential safety hazard of the folding ladder for buildings.

Description

Prevent folding ladder for building of card thing

Technical Field

The utility model relates to the technical field of building safety folding ladders, in particular to an anti-jamming folding ladder for a building.

Background

There is utility model patent that notice number is CN208364028U to disclose a building safety companion ladder of anti-sticking thing, the "axis of rotation 5 mentioned in the specification of this patent can with rotate lantern ring 7 opposite direction rotatory until the draw-in groove 9 of third ladder post 3 bottom can be gone into to fixture block 8 of second ladder post 2 bottom, first ladder post 1 overturns again afterwards, let fixture block 8 at two first ladder post 1 tops block respectively into the draw-in groove 9 at second ladder post 2 and third ladder post 3 tops, but in the in-service use process, tiny object is gone into to very easy the card of inside of draw-in groove, thereby lead to inseparable of fixture block and draw-in groove joint, make building safety companion ladder produce the potential safety hazard, influence the problem of the stability that building safety companion ladder connects.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the folding ladder for the building is prevented from being blocked, so that the problem that small objects are easily blocked in the clamping grooves, the clamping blocks and the clamping grooves are not tightly clamped, the building safety elevator generates potential safety hazards, and the connection stability of the building safety elevator is influenced is solved.

In order to achieve the purpose, the folding ladder for the building comprises two first ladder columns which are oppositely arranged, wherein the upper ends of the two first ladder columns are respectively and movably connected with second ladder columns through connecting assemblies, the lower ends of the two second ladder columns are respectively and movably connected with third ladder columns through connecting assemblies, and the upper ends of the two third ladder columns are respectively and movably connected with fourth ladder columns through connecting assemblies; all be provided with a plurality of footboard between two first ladder posts, between two second ladder posts, between two third ladder posts, between two fourth ladder posts, footboard fixed surface has the antiskid cover.

Coupling assembling includes protection piece, axis of rotation, tension spring and elastic expansion band, the top of first ladder post and fourth ladder post all overlaps and is equipped with the protection piece, and the top and the bottom of second ladder post and third ladder post all overlap and are equipped with the protection piece, and the protection piece passes through the screw to be connected with each ladder post, and the protection piece both sides all are provided with the fixed pin, all are provided with the axis of rotation between two adjacent ladder posts, and the outside of axis of rotation is provided with tension spring, and the tension spring outside is provided with elastic expansion band.

The rotation axis is hinged with the protection blocks on two sides of the rotation axis, two ends of the elastic telescopic belt are fixedly connected with the top surfaces of the two adjacent protection blocks respectively, and two ends of the tension spring arranged in the elastic telescopic belt are fixedly connected with the top surfaces of the two adjacent protection blocks respectively.

And the opposite wall surfaces of the first ladder column and the second ladder column, the opposite wall surfaces of the second ladder column and the third ladder column, and the opposite wall surfaces of the third ladder column and the fourth ladder column are all laminated with resistance-increasing sponge cushions.

The lower end of the first ladder post is provided with a supporting plate block, the upper end of the supporting plate block is fixedly provided with a hinge connecting piece, the hinge connecting piece is connected with the side face of the first ladder post through a fixed end, two sides of the bottom of the first ladder post are respectively fixedly provided with a joint rod, and the joint rods are movably connected with the supporting plate block.

Every be provided with a square convex block and inner groovy on two matched with protection pieces in axis of rotation both sides respectively, square convex block and inner groovy position are corresponding and structure looks adaptation, and square convex block is connected through setting up the pin hole and cooperation fixed pin with the inner groovy.

And a column sleeve is fixed at the lower end of the fourth ladder column.

The folding ladder has the advantages that the four sections of ladder columns are connected through the connecting assembly, the folding ladder can be conveniently switched between an opening state and a folding state, meanwhile, the hinged position between the two adjacent ladder columns is wrapped through the elastic telescopic belt, the problem that the folding ladder cannot be normally used due to the fact that objects enter the gap is avoided, the two adjacent sections of ladder columns are connected more tightly through the tension spring in the elastic telescopic belt, when the folding ladder is opened, the square convex blocks matched with the elastic telescopic belt are embedded into the corresponding inner grooves, clamping of small objects is prevented, the fixing pins enable the square convex blocks to be connected with the inner grooves more stably, firmness of the folding ladder is improved, gaps between the two opposite ladder columns are filled through the arrangement of the resistance-increasing sponge pads, fingers are prevented from entering the cracks, and the problem of stability of connection of the folding ladder is solved.

Drawings

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

FIG. 2 is a right sectional structural view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention.

1. A first ladder column; 2. a protection block; 21. an elastic stretchable band; 22. a tension spring; 23. a square bump; 24. a pin hole; 25. an inner groove; 26. a screw; 3. a pedal; 31. an anti-slip sleeve; 4. a fixing pin; 5. a support plate; 51. a hinge connection; 52. a connecting rod; 53. a fixed end; 6. a second ladder post; 7. a third ladder column; 8. a fourth ladder column; 81. a column sleeve; 9. a rotating shaft; 10. a resistance-increasing spongy cushion.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

Referring to fig. 1 to 3, the folding ladder for buildings for preventing the building from being blocked comprises two first ladder posts 1 arranged in opposite directions, wherein the upper ends of the two first ladder posts 1 are movably connected with second ladder posts 6 through connecting assemblies respectively, the lower ends of the two second ladder posts 6 are movably connected with third ladder posts 7 through connecting assemblies respectively, and the upper ends of the two third ladder posts 7 are movably connected with fourth ladder posts 8 through connecting assemblies respectively; between two first ladder posts 1, between two second ladder posts 6, between two third ladder posts 7, all be provided with a plurality of footboard 3 between two fourth ladder posts 8, footboard 3 fixed surface has antiskid cover 31.

Coupling assembling includes protection piece 2, axis of rotation 9, tension spring 22 and elastic expansion area 21, the top of first ladder post 1 and fourth ladder post 8 all overlaps and is equipped with protection piece 2, and the top and the bottom of second ladder post 6 and third ladder post 7 all overlap and are equipped with protection piece 2, and protection piece 2 passes through screw 26 and is connected with each ladder post, and 2 both sides of protection piece all are provided with fixed pin 4, all are provided with axis of rotation 9 between two adjacent ladder posts, and the outside of axis of rotation 9 is provided with tension spring 22, and tension spring 22 outside is provided with elastic expansion area 21.

The rotating shaft 9 is hinged to the protection blocks 2 on two sides of the rotating shaft, two ends of the elastic telescopic belt 21 are fixedly connected with the top surfaces of the two adjacent protection blocks 2 respectively, and two ends of the tension spring 22 arranged inside the elastic telescopic belt 21 are fixedly connected with the top surfaces of the two adjacent protection blocks 2 respectively.

The wall surfaces of the first ladder post 1 and the second ladder post 6 which face each other, the wall surfaces of the second ladder post 6 and the third ladder post 7 which face each other, and the wall surfaces of the third ladder post 7 and the fourth ladder post 8 which face each other are all provided with resistance-increasing sponge cushions 10 in a fitting manner.

The lower end of the first ladder post 1 is provided with a supporting plate 5, the upper end of the supporting plate 5 is fixed with a hinge connecting piece 51, the hinge connecting piece 51 is connected with the side surface of the first ladder post 1 through a fixed end 53, two sides of the bottom of the first ladder post 1 are respectively fixed with a connecting rod 52, and the connecting rods 52 are movably connected with the supporting plate 5.

Every be provided with a square convex block 23 and inner groovy 25 on two matched with protecting block 2 in axis of rotation 9 both sides respectively, square convex block 23 and inner groovy 25 corresponding and structure looks adaptation in position, square convex block 23 is connected through setting up the pin hole 24 and cooperation fixed pin 4 with inner groovy 25.

A column sleeve 81 is fixed at the lower end of the fourth ladder column 8.

The working principle of the utility model is as follows:

according to the utility model, four sections of ladder columns are movably connected together by using the connecting assembly, each ladder column can conveniently rotate through the rotating shaft 9, so that the folding ladder for the building can be opened and folded, the arrangement of the elastic telescopic belt 21 is convenient for the ladder columns to flexibly rotate, the hinged parts between the ladder columns are wrapped by the elastic telescopic belt 21, the problem that the folding ladder for the building cannot be normally used due to the fact that objects enter gaps is avoided, the two sections of ladder columns are connected more tightly by the tension spring 22 in the elastic telescopic belt 21, the square lug 23 is embedded into the inner groove 25, small objects are prevented from being clamped, the connection of the square lug 23 and the inner groove 25 is more stable by the fixing pin 4, the firmness of the folding ladder for the building is enhanced, the gap between two opposite ladder columns is filled by the resistance-increasing sponge cushion 10, fingers are prevented from entering the crack, and the problem of the stability of the connection of the safety ladder for the building is solved; the tension spring 22 is in a compressed state when the two sections of ladder columns are opened, and when the ladder columns are folded, the tension spring 22 is stretched to form an arc shape, so that the connection between the ladder columns is enhanced; the four ladder posts are respectively provided with a connecting component, so that the connection of a plurality of groups of ladder posts is facilitated, the extension length of the folding ladder for the building is increased, the square convex blocks 23 are clamped with the inner grooves 25, the folding and the fixing of the ladder posts are facilitated, and the fixing pins 4 are inserted into the pin post holes 24 formed by the connection of the square convex blocks 23 and the inner grooves 25 from the left side surface and the right side surface of the protection block 2, so that the connection stability of the folding ladder for the building is improved; the support plate 5 can rotate at the joint rod 52, and when the folding ladder for building is used, the hinge connecting piece 51 is pulled, so that the support plate 5 and the first ladder column 1 are vertical, the contact area between the bottom of the first ladder column 1 and the ground is increased, and the stable support of the folding ladder for building is improved.

Claims

1. The utility model provides an anti-sticking thing folding ladder for building which characterized in that: the ladder comprises two first ladder posts (1) which are oppositely arranged, wherein the upper ends of the two first ladder posts (1) are movably connected with second ladder posts (6) through connecting assemblies respectively, the lower ends of the two second ladder posts (6) are movably connected with third ladder posts (7) through connecting assemblies respectively, and the upper ends of the two third ladder posts (7) are movably connected with fourth ladder posts (8) through connecting assemblies respectively; a plurality of pedals (3) are arranged between the two first ladder posts (1), between the two second ladder posts (6), between the two third ladder posts (7) and between the two fourth ladder posts (8), and anti-skidding sleeves (31) are fixed on the surfaces of the pedals (3).

2. The ladder of claim 1, further comprising: coupling assembling includes protection piece (2), axis of rotation (9), tension spring (22) and elastic expansion band (21), the top of first ladder post (1) and fourth ladder post (8) all overlaps and is equipped with protection piece (2), the top and the bottom of second ladder post (6) and third ladder post (7) all overlap and are equipped with protection piece (2), protection piece (2) are connected with each ladder post through screw (26), protection piece (2) both sides all are provided with fixed pin (4), all be provided with axis of rotation (9) between two adjacent ladder posts, the outside of axis of rotation (9) is provided with tension spring (22), tension spring (22) outside is provided with elastic expansion band (21).

3. The ladder of claim 2, further comprising: the rotation shaft (9) is hinged with the protection blocks (2) on two sides of the rotation shaft, two ends of the elastic telescopic belt (21) are fixedly connected with the top surfaces of the two adjacent protection blocks (2) respectively, and two ends of the tension spring (22) arranged inside the elastic telescopic belt (21) are fixedly connected with the top surfaces of the two adjacent protection blocks (2) respectively.

4. The ladder of claim 1, further comprising: the wall surfaces of the first ladder post (1) and the second ladder post (6) which face each other, the wall surfaces of the second ladder post (6) and the third ladder post (7) which face each other, and the wall surfaces of the third ladder post (7) and the fourth ladder post (8) which face each other are all attached to resistance-increasing sponge cushions (10).

5. The ladder of claim 1, further comprising: the first ladder post (1) lower extreme is provided with support plate (5), and support plate (5) upper end is fixed with hinge joint spare (51), hinge joint spare (51) are connected with first ladder post (1) side through stiff end (53), and both sides of first ladder post (1) bottom all are fixed with links up pole (52), links up pole (52) and support plate (5) swing joint.

6. The ladder of claim 3, further comprising: every be provided with a square convex block (23) and inner grove (25) on two protection piece (2) of axis of rotation (9) both sides matched with respectively, square convex block (23) and inner grove (25) corresponding and structure looks adaptation in position, square convex block (23) are connected through setting up pin hole (24) and cooperation fixed pin (4) with inner grove (25).

7. The ladder of claim 1, further comprising: and a column sleeve (81) is fixed at the lower end of the fourth ladder column (8).