CN208546129U

CN208546129U - Folding ladder

Info

Publication number: CN208546129U
Application number: CN201820367977.0U
Authority: CN
Inventors: 朱雪林; 姚柏松; 张勇健
Original assignee: Jiangsu Zeus Jay Intelligent Polytron Technologies Inc
Current assignee: Jiangsu Zeus Jay Intelligent Polytron Technologies Inc
Priority date: 2018-03-19
Filing date: 2018-03-19
Publication date: 2019-02-26
Anticipated expiration: 2028-03-19

Abstract

The utility model discloses a kind of folding ladder, folding ladder, including side arm, after-frame, pedal, the side arm and after-frame are rotatablely connected, the after-frame is equipped with cross bar, the pedal and side arm are rotatablely connected, the bottom of the pedal is equipped with link member, one end of the link member and pedal are rotatablely connected, the other end of link member is equipped with crotch, and crotch is set in the cross bar of the after-frame, it is characterised in that, the locating part is fixed at link member and blocks the opening of the crotch, and cross bar is limited in the space of the locating part and the fixed hook-forming at this time.The utility model prevents cross bar to be detached from stay hook, and safe and reliable and easy to assembly, cost is relatively low.

Description

Folding ladder

Technical field

The utility model relates to folding ladders, belong to household items technical field.

Background technique

Folding ladder when in use, generally makes to push up pedal as workbench, for safety, folding ladder is at the bottom of stair treads Connector is arranged in portion, and one end of connector is arranged in pedal bottom, and the other end is connected on folding ladder after-frame, is connected by overturning The folding and expansion of part realization ladder.There are two types of existing connectors, and one is pothook types, although this structure is producing and processing Ease of assembly folding ladder in the process, but since the junction of connector and after-frame is jagged, in overturning pedal, connector is easily de- From folding ladder after-frame, there are some potential safety problemss；Alternative attachment is link type, is set in the cross bar of folding ladder after-frame On, it is not in the phenomenon that connector takes off bar, but when assembling, it is necessary to it is that connector is laterally set on the cross bar of ladder, increases Add installation difficulty, improves production cost.

Utility model content

The purpose of the utility model is to overcome the above deficiencies in the existing technologies, and provide a kind of structure design letter It is single reasonable, securely and reliably, and it is easy to assembly, reduce the folding ladder of cost.

The technical scheme in the invention for solving the above technical problem is: folding ladder, including side arm, after-frame, pedal, institute It states side arm and after-frame is rotatablely connected, the after-frame is equipped with cross bar, and the pedal and side arm are rotatablely connected, and the bottom of the pedal is set There is link member, one end of the link member and pedal are rotatablely connected, and the other end of link member is equipped with crotch, and crotch is set in described The cross bar of after-frame, locating part are fixed at link member and block the opening of the crotch.

Further, the link member is the integral structure made of metal wire rod bending, and the two sides of crotch are metal Wire rod has clearance space, the metal wire rod of the metal wire rod connection two sides of interlude between the metal wire rod of two sides.

Further, the locating part is equipped with latch hook, the metal wire rod of the latch hook hook jail interlude.

In addition, on the link member two sides metal wire rod irrelevancy row.

Furthermore the locating part includes upper limit bit slice and lower limit bit slice, and the upper limit bit slice is interior with the lower limit bit slice Portion is equipped with upper and lower corresponding connecting column；Junction at left and right sides of the upper limit bit slice and the lower limit bit slice is equipped with described in restriction The through-hole of link member.

Further, the upper limit bit slice is equipped with the corresponding restriction connecting rod up and down with the inside two sides of the lower limit bit slice The reinforcement protrusion of part, can be such that locating part deforms, and then pedal is caused to warp, eliminate safe hidden trouble after preventing pedal force.

The utility model compared with prior art, has the following advantages that and effect: the utility model is by stopping adding On the one hand structure, that is, locating part effectively prevent cross bar de- by cross bar limit in the enclosure space that stay hook and locating part are constituted It from stay hook, eliminates safe hidden trouble, on the other hand convenient for assembling, reduces cost.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment.

Fig. 2 is the bottom view of pedal described in the utility model.

Fig. 3 is the main view of locating part described in the utility model.

Fig. 4 is the structural schematic diagram of locating part described in the utility model.

Fig. 5 is the side view of locating part described in the utility model.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is pair The explanation of the utility model and the utility model is not limited to following embodiment.

Embodiment 1

In conjunction with attached drawing 1 to Fig. 3, a kind of folding ladder provided by the utility model, including side arm 1, after-frame 2, pedal 3, it is described Side arm 1 and after-frame 2 are rotatablely connected expansion and folding to realize ladder, and the pedal 3 is rotatablely connected with side arm 1, the pedal 3 Bottom be equipped with link member 4, link member 4 can drive pedal 3 to overturn when the side arm 1 is rotated with after-frame 2, and the after-frame 2 is equipped with Cross bar 7, one end of the link member 4 and pedal 3 are rotatablely connected, and the other end of link member 4 is equipped with crotch 5, and crotch 5 is set in institute The cross bar 7 of after-frame 2 is stated, that is, the crotch 5 of connecting rod is directly hooked on cross bar 7 when assembling, reduction installation difficulty, on link member 4 It is arranged finite place piece 6, locating part 6 blocks the opening of the crotch 5, prevents crotch 5 when ladder activity and is detached from cross bar 7, eliminates peace Full hidden danger.The link member 4 is the integral structure made of metal wire rod bending, and the two sides of crotch 5 are metal wire rod, two sides Metal wire rod between have clearance space, interlude 13 metal wire rod connection two sides metal wire rod.In conjunction with Fig. 3 and Fig. 5, The locating part 6 is equipped with latch hook 12, the metal wire rod of the hook jail interlude 13, and the closing opening of crotch 5 increases the jail of connection Solidity, it is not easily to fall off, it is not easy to wear, extend the service life of locating part, and facilitate installation, prevention locating part is during the installation process It is impaired.

With reference to Fig. 4, the locating part 6 includes separable upper limit bit slice 61 and lower limit bit slice 62, the upper limit bit slice 61 With the lower limit bit slice 62 by the way that corresponding connecting column 8 fits together up and down inside the two, wherein connecting column 8 is set to the upper limit In the middle part of 62 inner surface of bit slice 61 and lower limit bit slice, the upper limit bit slice 61 and the junction of 62 left and right sides of lower limit bit slice are set There is through-hole 11 to limit the link member 4, prevents link member 4 from loosening.The upper limit bit slice 61 is interior with the lower limit bit slice 62 Portion two sides are equipped with the corresponding reinforcement protrusion 9 for limiting the link member 4 up and down, reinforce protrusion 9 and are provided with two column, two column reinforce protrusion 9 separations are in the two sides of the connecting column 8, and it is tangent with the link member 4 that is mounted in through-hole to reinforce protrusion 9, and prevention locating part 6 is loose It is dynamic, while locating part 6 is reinforced, locating part 6 can be made to deform after preventing 3 stress of pedal, eliminated safe hidden trouble.In addition, the connecting rod The upright projection of the metal wire rod irrelevancy row of two sides on part 4, the metal wire rod of two sides is in "eight" shape, and locating part 6 is mounted on After on link member 4, the two is in the state clamped, limits the locating part 6, prevents its sliding.

As another embodiment, it the difference from embodiment 1 is that the locating part 6 is an integral molding structure, is set in On the link member 4.

Above content is only illustrate to examples for clearly illustrating the present invention described in this specification.The utility model Person of ordinary skill in the field can make various modifications or additions to the described embodiments or using class As mode substitute, content without departing from the utility model specification or surmount model defined in the claims It encloses, all should belong to the protection range of the utility model.

Claims

1. folding ladder, the folding ladder includes side arm, after-frame, pedal, and the side arm and after-frame are rotatablely connected, and the after-frame is equipped with Cross bar, the pedal and side arm are rotatablely connected, and the bottom of the pedal is equipped with link member, and one end of the link member and pedal turn The other end of dynamic connection, link member is equipped with crotch, and crotch is set in the cross bar of the after-frame, which is characterized in that locating part is fixed Link member is set and blocks the opening of the crotch.

2. folding ladder according to claim 1, which is characterized in that the link member is made of metal wire rod bending Integral structure, the two sides of crotch are metal wire rod, have clearance space, the metal wire rod of interlude between the metal wire rod of two sides Connect the metal wire rod of two sides.

3. folding ladder according to claim 2, which is characterized in that the locating part is equipped with latch hook, the latch hook hook jail The metal wire rod of the interlude.

4. folding ladder according to claim 2, which is characterized in that the metal wire rod irrelevancy of two sides on the link member Row.

5. folding ladder according to claim 2, which is characterized in that the locating part includes upper limit bit slice and lower limit bit slice, The upper limit bit slice is equipped with upper and lower corresponding connecting column with the inside of the lower limit bit slice；The upper limit bit slice and the lower limit Junction at left and right sides of piece is equipped with the through-hole for limiting the link member.

6. folding ladder according to claim 5, which is characterized in that the inside two of the upper limit bit slice and the lower limit bit slice Side is equipped with the corresponding reinforcement protrusion for limiting the link member up and down.