CN208650783U

CN208650783U - Adjustable ladder

Info

Publication number: CN208650783U
Application number: CN201820823669.4U
Authority: CN
Inventors: 钟春颜
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-05-30
Filing date: 2018-05-30
Publication date: 2019-03-26
Anticipated expiration: 2028-05-30

Abstract

The utility model relates to a kind of adjustable ladders, including two ladders, described two ladder one end link together, the other end is separated, there are two opposite brackets for each ladder tool, cross bar is then equipped between described two brackets, one first telescopic leg is equipped in the bottom end of each bracket, it can mutually be moved between stretching and contracting between first telescopic leg and bracket, to adjust the length that the first telescopic leg stretches out bracket, and there is a positioning mechanism between the first telescopic leg and bracket, the positioning mechanism is for the fixation bracket and the first telescopic leg or unclasps the bracket and the first telescopic leg, the length of bracket is stretched out using the first telescopic leg of adjustment, make the first telescopic leg of each bracket that can adapt to the change in location of different differences of height, allow ladder more stable when being set up in the injustice topography such as stair really.

Description

Adjustable ladder

Technical field

The utility model relates to technical field of tools, particularly relate to a kind of adjustable ladder.

Background technique

Due to the environmental factor of work, people often need aloft operation, for example, the mud of metope, roof (ceiling) make, Carpenter or painting etc., and the operation must then be dependent on ladder, by climing up the ladder come work.

Current ladder generally has two ladders, and together, the other end is certainly for two ladder one end hinged joints By holding, two ladders by link attachment together, and on each ladder then be equipped with multiple cross bars, ascend a height and trample for user.

Above-mentioned habit has ladder to be erected in a plane using ladder, such as on ground, and is trampled on cross bar by user, And it is available in high-rise working.But when encountering stair or rugged topography, described kind of ladder is then without the ground useed force.

Therefore, it is necessary to design a kind of new adjustable ladder, to solve the above technical problems.

Utility model content

The problem of for background technique, the purpose of the utility model is to provide a kind of adjustable ladders, reach It is more stable when being set up in the injustice topography such as stair.

The technical solution of the utility model is achieved in that a kind of adjustable ladder, including two ladders, described two A ladder one end links together, and the other end is separated；There are two opposite brackets for each ladder tool, described two It is then equipped with cross bar between bracket, is equipped with one first telescopic leg in the bottom end of each bracket, it can be between first telescopic leg and bracket It is mutually moved between stretching and contracting, the length of bracket is stretched out with the first telescopic leg of adjustment, and have between the first telescopic leg and bracket There is a positioning mechanism, the positioning mechanism is for fixed bracket and the first telescopic leg or unclasps the bracket and the first telescopic leg；Institute It states positioning mechanism and is equipped at least a positioning hole included in bracket, multiple perforation and a latch are equipped in the first telescopic leg； The selective location hole with bracket of multiple perforation of first telescopic leg aligns, and is worn by latch insertion location hole with opposite Hole, to fix bracket and the first telescopic leg.

In the above-mentioned technical solutions, the bottom end of each first telescopic leg is equipped with one second telescopic leg, and described second is flexible There is a micro-adjusting mechanism, to adjust the length that the second telescopic leg stretches out the first telescopic leg between foot and the first telescopic leg.

In the above-mentioned technical solutions, the micro-adjusting mechanism includes: one is located at the fixing seat of the first telescopic leg bottom end, institute Fixing seat is stated with an inner bolt hole；The external screw thread being located in the second telescopic leg, the external screw thread are screwed onto solid for the second telescopic leg The inner bolt hole of reservation.

In the above-mentioned technical solutions, second telescopic leg bottom end is equipped with a foot pad.

In the above-mentioned technical solutions, the fixing seat is fixed on the inside of the first telescopic leg bottom end.

In the above-mentioned technical solutions, a connecting rod and one group of fastener group, described two ladder exhibitions are equipped between described two ladders It when opening, is linked together by connecting rod, and is fixed by fastener group group button.

The adjustable ladder of the utility model has one first telescopic leg and one second telescopic leg, utilizes the first telescopic leg When ladder can be allowed to be erected at the injustice position such as stair, the length of bracket is stretched out using the first telescopic leg of adjustment, makes each bracket First telescopic leg can adapt to the change in location of different differences of height, if can pass through can nothing with ground there are also when gap slightly Second telescopic leg of section trim lengths, and can make more docile with ground, allow ladder when being set up in the uneven topography such as stair really It is more stable.

Detailed description of the invention

Fig. 1 is the perspective view of this ladder preferred embodiment；

Fig. 2 is the front view of Fig. 1；

Fig. 3 is the side view of Fig. 1；

Fig. 4 is the stereoscopic schematic diagram of the first telescopic leg retraction bracket in Fig. 1；

Fig. 5 is the part exploded view in Fig. 1；

Fig. 6 is the partial sectional view that the first telescopic leg is combined with the second telescopic leg；

Fig. 7 is the cross-sectional view of the first telescopic leg, bracket and latch combination；

Fig. 8 is the schematic diagram for being used in stair；

Fig. 9 is another schematic diagram for being used in stair.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without creative efforts The every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figures 1 to 6, a kind of adjustable ladder described in the utility model, including two ladder 11, four One telescopic leg 21 and four groups of positioning mechanisms 31.

One end of each ladder 11 in the present embodiment hingedly links together, and the other end of ladder 11 is separation shape Free end, two ladders 11 then allow free end movable between being separated to folding by hinged, and each ladder 11 then has There are two opposite brackets 12, and multiple cross bars 13 are then equipped between described two brackets 12；In addition, then movable on a ladder 11 Ground is equipped with a connecting rod 14, and one group of fastener group 15,16 is then equipped on connecting rod 14 and another ladder 11, and described two ladders 11 are unfolded In use, being linked together by connecting rod 14, and a group button is subject to by fastener group 15,16 and is fixed.

Each first telescopic leg 21 in the present embodiment is set to the bottom end of each bracket 12, first telescopic leg 21 It can mutually be moved between stretching and contracting between bracket 12, to adjust the length that the first telescopic leg 21 stretches out bracket 12, the 7th figure please be join Shown, the section of the first telescopic leg 21 and bracket 12 is in the quadrilateral structure of cuboid, but can also be using such as ㄈ word in practice The structure of the triangle of shape.Aluminum or aluminum alloy may be selected in preferable material.

As shown in figure 5 and figure 7, in the present embodiment, positioning mechanism 31 is arranged between the first telescopic leg 21 and bracket 12, with For the fixation bracket 12 and the first telescopic leg 21 or the bracket 12 and the first telescopic leg 21 are unclasped, and it includes being located at At least a positioning hole 32 on bracket 12 is stated, multiple perforation 33 for being located in first telescopic leg 21 and one are for plugging Latch 34 in location hole 32 and perforation 33, and multiple perforation 33 of first telescopic leg 21, available and bracket 12 Location hole 32 align, and by latch 34 be inserted into location hole 32 with to perforation 33, to fix bracket 12 and the first telescopic leg 21 Between not move (cunning) dynamic.

The present embodiment is further equipped with one second telescopic leg 41 in the bottom end of each first telescopic leg 21, and described second There is a micro-adjusting mechanism 51 between telescopic leg 41 and the first telescopic leg 21, stretch out the first telescopic leg 21 to adjust the second telescopic leg 41 Length.

The micro-adjusting mechanism 51 includes the fixing seat 52 for being located at 21 bottom end of the first telescopic leg, and the fixing seat 52 has There is an inner bolt hole 53；And it is located at the external screw thread 54 in the second telescopic leg 41, the external screw thread 54 is spirally connected for the second telescopic leg 41 In the inner bolt hole 53 of fixing seat 52.

In addition, being then equipped with a foot pad 42 in 41 bottom end of the second telescopic leg, rubber, silica gel, plastics are can be selected in material Deng, and the bottom surface 43 of foot pad 42 is in arcuation, and all directions of foot pad 42 is facilitated to contact ground.

In conjunction with shown in Fig. 8 and Fig. 9, ladder 100 is stood on using two kinds of use state diagrams in stair 60, ladder 100 When stair 60, two brackets 12 in ladder 100 are stood in a step 61, and 100 another two bracket 12 of ladder is stood in another step 62, by adjusting the first telescopic leg 21, so that ladder 100 is maintained at the use state of normal level, and select corresponding in location hole Latch 34 is inserted into location hole 32 and corresponding perforation 33, just completes to fix by 32 perforation 33.If still some are not or not ladder 100 Steadily, then the micro-adjusting mechanism 51 that can pass through the second telescopic leg 41 of rotation, so that ladder 100 is more added with step 61,62 or ground Patch, and it is more stable.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this The spirit of utility model is interior with principle, and any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope it is interior.

Claims

1. a kind of adjustable ladder, it is characterised in that: including two ladders, described two ladder one end link together, separately One end is separated；There are two opposite brackets for each ladder tool, cross bar are then equipped between described two brackets, each The bottom end of bracket is equipped with one first telescopic leg, can mutually move between stretching and contracting between first telescopic leg and bracket, to adjust Whole first telescopic leg stretches out the length of bracket, and has a positioning mechanism, the localization machine between the first telescopic leg and bracket Structure is for fixed bracket and the first telescopic leg or unclasps the bracket and the first telescopic leg；The positioning mechanism is included on bracket and sets There is at least a positioning hole, multiple perforation and a latch are equipped in the first telescopic leg；Multiple perforation of first telescopic leg The selective location hole with bracket aligns, and by latch insertion location hole and opposite perforation, is stretched with fixing bracket and first Foot.

2. adjustable ladder according to claim 1, it is characterised in that: the bottom end of each first telescopic leg is equipped with one Second telescopic leg has a micro-adjusting mechanism between second telescopic leg and the first telescopic leg, stretch out the to adjust the second telescopic leg The length of one telescopic leg.

3. adjustable ladder according to claim 2, it is characterised in that: the micro-adjusting mechanism includes: one is located at The fixing seat of first telescopic leg bottom end, the fixing seat have an inner bolt hole；The external screw thread being located in the second telescopic leg, it is described outer Screw thread is screwed onto the inner bolt hole of fixing seat for the second telescopic leg.

4. adjustable ladder according to claim 3, it is characterised in that: second telescopic leg bottom end is equipped with a foot Pad.

5. adjustable ladder according to claim 3, it is characterised in that: the fixing seat is fixed on the first telescopic leg bottom The inside at end.

6. adjustable ladder according to claim 3, it is characterised in that: be equipped with a connecting rod and one between described two ladders Group fastener group is linked together, and fixed by fastener group group button when described two ladders are unfolded by connecting rod.