CN111734109B

CN111734109B - Stair type folding scaffold

Info

Publication number: CN111734109B
Application number: CN202010764445.2A
Authority: CN
Inventors: 易彬
Original assignee: Tianjin Jiuwei Industrial Co ltd
Current assignee: TIANJIN JIUWEI INDUSTRIAL Co.,Ltd.
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-01-22
Anticipated expiration: 2040-08-03
Also published as: CN111734109A

Abstract

The invention discloses a stair type folding scaffold, and relates to the technical field of building construction equipment. The ladder comprises a bottom plate, a first frame plate and a second frame plate, wherein the bottoms of the first frame plate and the second frame plate are respectively and rotatably connected with two ladder frames; ladder boards are arranged between the inner sides of the two ladder frames in a linear array manner; a guide gear is rotatably connected between the inner sides of the two ladder frames and the two adjacent ladder boards; wherein, a rotating frame is sleeved at the end part of a guide gear positioned at the bottom of the ladder frame and positioned at the outer side of the ladder frame; one side of the bottom ends of the two ladder frames is in sliding fit with a limiting clamping frame. According to the invention, the stair type is adopted to replace the traditional climbing frame, when the rotating frame is rotated, the connecting gears at the two ends of the stair plates are in meshing transmission with the guide gears, the clamping blocks at the end part of the rotating frame are mutually clamped with the limiting guide grooves on the side surfaces of the stair frames to fix and limit the angle of the stair plates, and the stair frames are folded and unfolded under the action of the limiting clamping frames, so that the integral toppling caused by climbing from the side surfaces of the scaffold is avoided, and the personal safety of constructors is ensured.

Description

Stair type folding scaffold

Technical Field

The invention belongs to the technical field of building construction equipment, and particularly relates to a stair type folding scaffold.

Background

The scaffold refers to various supports which are erected for workers to operate and solve vertical and horizontal transportation on a construction site, and is mainly used for up-and-down operation of constructors or enclosure of a peripheral safety net and high-altitude installation components. Some projects also use scaffolds as templates, and in addition, the scaffold is widely used in advertising, municipal administration, traffic roads and bridges, mines and other departments.

The existing scaffold is generally built by using steel pipes or aluminum alloy pipes, the steel pipes are connected by using bolts, time and labor are wasted when the scaffold is built, the scaffold is troublesome to store and transport at ordinary times due to the huge volume of the scaffold, the scaffold is required to be climbed from the scaffold end up and down, physical force of constructors is consumed, the scaffold is prone to being inclined or even toppled to one side of the climbing from the single side up and down, the constructors are prone to falling down, and personal safety of the constructors is affected.

Disclosure of Invention

The invention aims to provide a stair type folding scaffold, which is characterized in that a stair frame, a stair plate, a guide gear, a rotating frame and a limiting clamping frame are used in a matched mode, the stair type folding scaffold replaces a traditional climbing frame, and the problem that the side face climbing of the existing scaffold easily causes constructors to fall down and the personal safety of the constructors is affected is solved.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a stair type folding scaffold, which comprises a bottom plate, a first frame plate and a second frame plate,

a first support frame is rotatably connected between the bottom plate and the end part of the upper surface of the first frame plate; the other ends of the two first supporting frames are respectively in sliding fit with the end parts of the first frame plate and the second frame plate; the lower surfaces of the first frame plate and the second frame plate are both rotatably connected with a second support frame at one end far away from the first support frame; the other ends of the two second support frames are respectively in sliding fit with the end parts of the bottom plate and the second frame plate; two sides of the two first supporting frames are rotatably connected with air cylinders; the end parts of the four cylinder piston rods are respectively and rotatably connected with two sides of the two second support frames;

the bottoms of the first frame plate and the second frame plate are respectively and rotatably connected with two ladder frames; ladder plates are arranged between the inner sides of the two ladder frames through ball bearing linear arrays; the inner sides of the two ladder frames and the space between the two adjacent ladder boards are rotatably connected with guide gears through ball bearings; wherein, a rotating frame is sleeved at the end part of a guide gear positioned at the bottom of the ladder frame and positioned at the outer side of the ladder frame; one side of the bottom end of the two ladder frames is in sliding fit with a limiting clamping frame.

Furthermore, connecting plates which are mutually rotatably connected with the ladder plates and the guide gears are arranged on two sides in the ladder frame; a clamping groove is formed in the side face of one end of the ladder frame; one side of the ladder frame, which is far away from the clamping groove, is provided with a guide groove matched with the limiting clamping frame.

Furthermore, the ladder board both sides all are equipped with the connecting gear with guide gear matched with.

Furthermore, a cross clamping groove is formed in the end part of a guide gear positioned at the bottom of the ladder frame.

Further, the rotating frame comprises a cross inserted bar matched with the cross clamping groove; a connecting spring is fixed at one end of the cross inserted bar and positioned between the inner parts of the cross clamping grooves; a rotary handle is fixed at the other end of the cross inserted bar; the side surface of the rotating handle is provided with a clamping block matched with the clamping groove.

Furthermore, the limiting clamping frame is of an L-shaped structure; and a limiting guide groove is formed between the two side surfaces of the bottom end of the limiting clamping frame.

Furthermore, a first clamping shaft matched with the limiting guide groove is arranged on the upper surface of the bottom plate; and universal wheels are arranged at the four-corner ends of the lower surface of the bottom plate.

Furthermore, a first rectangular groove matched with the ladder frame is formed in the surface of the first frame plate; and a second clamping shaft and a third clamping shaft which are matched with the limiting guide grooves are respectively arranged on the two surfaces of the first frame plate.

Furthermore, a second rectangular groove matched with the ladder frame is formed in the surface of the second frame plate; and a fourth clamping shaft matched with the limiting guide groove is arranged on the lower surface of the second frame plate.

The invention has the following beneficial effects:

1. according to the invention, through the matched use of the ladder frame, the ladder plate, the guide gear, the rotating frame and the limiting clamping frame, the traditional climbing frame is replaced by a ladder type ladder, when the rotating frame is rotated, the connecting gear at the two ends of the ladder plate is in meshing transmission with the guide gear, the clamping block at the end part of the rotating frame is mutually clamped with the limiting guide groove at the side surface of the ladder frame to fix and limit the rotating angle of the ladder plate, and under the action of the limiting clamping frame, the ladder frame can be folded and unfolded, the integral toppling caused by climbing from the side surface of the scaffold is avoided, and the personal safety of constructors is ensured.

2. The bottom plate, the first frame plate, the second frame plate, the first support frame, the second support frame and the air cylinder are matched for use, the air cylinder stretches and pushes the two second support frames, so that the first support frame and the second support frame move and push the first frame plate and the second frame plate to move upwards, the scaffold is automatically folded, the operation is simple, the use is convenient, the overall carrying volume of the scaffold is reduced, and the scaffold is convenient to transport and move.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a stair-type folding scaffold according to the present invention;

FIG. 2 is a schematic structural view of a base plate;

fig. 3 is a schematic structural view of the first frame plate;

fig. 4 is a schematic structural view of the second frame plate;

FIG. 5 is a schematic view of an assembly structure of the ladder rack, the ladder plate, the guide gear, the rotating rack and the limiting clamp rack;

FIG. 6 is a schematic view of the ladder frame;

FIG. 7 is a schematic view of the structure of the step;

FIG. 8 is a schematic view of the guide gear;

FIG. 9 is a schematic structural view of the rotary frame;

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

1-bottom plate, 2-first frame plate, 3-second frame plate, 4-first support frame, 5-second support frame, 6-air cylinder, 7-ladder frame, 8-ladder plate, 9-guide gear, 10-rotating frame, 11-limiting clamping frame, 101-first clamping shaft, 102-universal wheel, 201-first rectangular groove, 202-second clamping shaft, 203-third clamping shaft, 301-second rectangular groove, 302-fourth clamping shaft, 701-connecting plate, 702-clamping groove, 703-guide groove, 801-connecting gear, 901-cross clamping groove, 1001-cross inserted bar, 1002-connecting spring, 1003-rotating handle, 1004-clamping block and 1101-limiting guide groove.

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.

Referring to fig. 1 to 5, the present invention is a folding scaffold of a stair type, comprising a base plate 1, a first frame plate 2 and a second frame plate 3,

a first support frame 4 is rotatably connected between the bottom plate 1 and the end part of the upper surface of the first frame plate 2; the other ends of the two first supporting frames 4 are respectively in sliding fit with the end parts of the first frame plate 2 and the second frame plate 3; the lower surfaces of the first frame plate 2 and the second frame plate 3 are both rotatably connected with a second support frame 5 at one end far away from the first support frame 4; the other ends of the two second support frames 5 are respectively in sliding fit with the end parts of the bottom plate 1 and the second frame plate 3; two sides of the two first supporting frames 4 are rotatably connected with air cylinders 6; the end parts of piston rods of four cylinders 6 are respectively rotatably connected with two sides of the two second support frames 5;

the bottoms of the first frame plate 2 and the second frame plate 3 are respectively connected with two ladder frames 7 in a rotating way; ladder plates 8 are arranged between the inner sides of the two ladder frames 7 through ball bearing linear arrays; the inner sides of the two ladder frames 7 and the space between two adjacent ladder boards 8 are rotatably connected with a guide gear 9 through a ball bearing; wherein, a rotating frame 10 is sleeved at the end part of a guide gear 9 positioned at the bottom of the ladder frame 7 and positioned at the outer side of the ladder frame 7; one side of the bottom ends of the two ladder frames 7 is in sliding fit with a limiting clamping frame 11.

As shown in fig. 5 and 6, connecting plates 701 rotatably connected with the step plate 8 and the guide gear 9 are respectively arranged at two sides inside the ladder frame 7; a clamping groove 702 is arranged on the side surface of one end of the ladder rack 7; the ladder frame 7 is provided with a guide groove 703 matched with the limit clamp frame 11 at one side far away from the clamp groove 702.

As shown in fig. 7 and 8, the ladder plate 8 is provided with connecting gears 801 on both sides thereof for engaging with the guide gears 9.

As shown in fig. 6 and 8, a cross slot 901 is formed at the end of a guide gear 9 at the bottom of the ladder rack 7.

As shown in fig. 8 and 9, the rotary frame 10 includes a cross rod 1001 engaged with the cross slot 901; a connecting spring 1002 is fixed at one end of the cross inserted bar 1001 and positioned between the inner parts of the cross clamping grooves 901; a rotary handle 1003 is fixed at the other end of the cross insert rod 1001; the circumferential side surface of the rotating handle 1003 is provided with a fixture block 1004 matched with the fixture groove 702.

As shown in fig. 5, the limiting clamp frame 11 is of an L-shaped structure; a limiting guide groove 1101 is arranged between two side surfaces of the bottom end of the limiting clamp frame 11.

As shown in fig. 2 and 5, the upper surface of the bottom plate 1 is provided with a first clamping shaft 101 matched with the limiting guide groove 1101; universal wheels 102 are arranged at the four-corner ends of the lower surface of the bottom plate 1.

As shown in fig. 3 and 5, a first rectangular groove 201 matched with the ladder rack 7 is formed on the surface of the first frame plate 2; the two surfaces of the first frame plate 2 are respectively provided with a second clamping shaft 202 and a third clamping shaft 203 which are matched with the limiting guide grooves 1101.

As shown in fig. 4 and 5, a second rectangular groove 301 matched with the ladder rack 7 is formed on the surface of the second frame plate 3; the lower surface of the second frame plate 3 is provided with a fourth chuck shaft 302 matched with the limiting guide groove 1101.

One specific application of this embodiment is: when the lifting device is lifted, the four cylinders 6 stretch and retract, the two second support frames 5 are pushed to slide along the bottom plate 1 and the first frame plate 2, the two second support frames 5 drive the two first support frames 4 to slide along the first frame plate and the second frame plate 3 when sliding, so that the first frame plate 2 and the second frame plate 3 move upwards and are unfolded, the limiting clamping frames 11 at the end parts of the ladder frames 7 positioned between the lower surface of the first frame plate 2 and the second frame plate 3 are separated from the second clamping shafts 202 and the fourth clamping shafts 302, the two ladder frames 7 are overturned and fall to the surfaces of the bottom plate 1 and the first frame plate 2 respectively, the limiting clamping frames 11 are in sliding fit with the guide grooves 703 at the side surfaces of the ladder frames 7, so that the limiting guide grooves 1101 at the end parts of the two limiting clamping frames 11 are clamped with the first clamping shafts 101 and the third clamping shafts 203 respectively, the rotating frames 10 at the side surfaces of the two ladder frames 7 are pulled and rotate, the connecting gears 801 at the two ends of the ladder plates 8 positioned at the, make a plurality of terraces 8 that are located ladder frame 7 inboard rotate simultaneously and with the mutual parallel and level in bottom plate 1 surface, loosen rotatory handle 1003, under connecting spring 1002's effect, make the fixture block of rotatory handle 1003 all sides and the mutual joint of draw-in groove 702 of ladder frame 7 side, fix spacingly to the rotation angle of terraces 8, first rectangular channel 201 and the second rectangular channel 301 that are located first frame plate 2 and second frame plate 3 surfaces supply the constructor to pass through, constructor can through the terraces 8 walking between two ladder frames 7, therefore, the operation is simple, high durability and convenient use, the holistic transport volume of scaffold has been reduced, be convenient for transport the removal to the scaffold frame, can realize receiving and releasing the ladder frame, avoid falling down from the whole that scaffold side leads to, constructor's personal safety has been guaranteed.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to 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 do not necessarily 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.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A stair type folding scaffold comprises a bottom plate (1), a first frame plate (2) and a second frame plate (3), wherein a first support frame (4) is rotatably connected between the bottom plate (1) and the end part of the upper surface of the first frame plate (2); the other ends of the two first supporting frames (4) are respectively in sliding fit with the end parts of the first frame plate (2) and the second frame plate (3); one ends of the lower surfaces of the first frame plate (2) and the second frame plate (3), which are far away from the first support frame (4), are rotatably connected with a second support frame (5); the other ends of the two second support frames (5) are respectively in sliding fit with the end parts of the bottom plate (1) and the second frame plate (3); both sides of the two first supporting frames (4) are rotatably connected with air cylinders (6); the end parts of piston rods of the four cylinders (6) are respectively and rotatably connected with two sides of the two second supporting frames (5);

the method is characterized in that:

the bottoms of the first frame plate (2) and the second frame plate (3) are respectively connected with two ladder frames (7) in a rotating way; ladder plates (8) are arranged between the inner sides of the two ladder frames (7) through ball bearing linear arrays; the inner sides of the two ladder frames (7) and the space between two adjacent ladder boards (8) are rotatably connected with a guide gear (9) through a ball bearing; wherein, a rotating frame (10) is sleeved at the end part of a guide gear (9) positioned at the bottom of the ladder frame (7) and positioned at the outer side of the ladder frame (7); one side of the bottom ends of the two ladder frames (7) is in sliding fit with a limiting clamping frame (11);

two sides in the ladder rack (7) are respectively provided with a connecting plate (701) which is rotationally connected with the ladder plate (8) and the guide gear (9); a clamping groove (702) is formed in the side face of one end of the ladder frame (7); a guide groove (703) matched with the limiting clamp frame (11) is formed in one side, far away from the clamp groove (702), of the ladder frame (7);

two sides of the ladder plate (8) are respectively provided with a connecting gear (801) matched with the guide gear (9);

wherein, the end part of a guide gear (9) positioned at the bottom of the ladder frame (7) is provided with a cross clamping groove (901);

the rotating frame (10) comprises a cross inserted bar (1001) matched with the cross clamping groove (901); a connecting spring (1002) is fixed at one end of the cross inserted bar (1001) and positioned between the cross clamping grooves (901); a rotary handle (1003) is fixed at the other end of the cross inserted bar (1001); a clamping block (1004) matched with the clamping groove (702) is arranged on the peripheral side surface of the rotating handle (1003);

the limiting clamp frame (11) is of an L-shaped structure; a limiting guide groove (1101) is formed between two side surfaces of the bottom end of the limiting clamp frame (11);

the upper surface of the bottom plate (1) is provided with a first clamping shaft (101) matched with the limiting guide groove (1101); universal wheels (102) are arranged at the four-corner ends of the lower surface of the bottom plate (1);

the surface of the first frame plate (2) is provided with a first rectangular groove (201) matched with the ladder frame (7); a second clamping shaft (202) and a third clamping shaft (203) which are matched with the limiting guide groove (1101) are respectively arranged on two surfaces of the first frame plate (2);

a second rectangular groove (301) matched with the ladder frame (7) is formed in the surface of the second frame plate (3); and a fourth clamping shaft (302) matched with the limiting guide groove (1101) is arranged on the lower surface of the second frame plate (3).