CN210598787U

CN210598787U - Folding herringbone ladder

Info

Publication number: CN210598787U
Application number: CN201921065047.0U
Authority: CN
Inventors: 叶传林
Original assignee: Lushi County Linhai Xinghua Agricultural Development Co Ltd
Current assignee: Lushi County Linhai Xinghua Agricultural Development Co Ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-05-22
Anticipated expiration: 2029-07-09

Abstract

The utility model relates to a double ladder field, concretely relates to folding double ladder, including two sets of landing legs and two sets of movable legs, every group landing leg is including controlling two landing legs, and every group activity leg is including controlling two movable legs, and is two sets of the landing leg inboard all is provided with the fluting, in the activity leg longitudinal sliding grafting fluting, every group activity leg upper end fixedly connected with connecting block, adjacent rotate the connection through the pivot between the connecting block, every group with every group between the landing leg equal fixedly connected with multiunit backup pad between the activity leg, every group the landing leg outside is connected with joint pole and bayonet lock respectively, the joint pole cooperates with the mutual joint of bayonet lock. The utility model discloses being convenient for accomodate and carrying, highly can adjusting simultaneously, the operation is very simple and convenient during the use, possesses certain marketing prospect.

Description

Folding herringbone ladder

Technical Field

The utility model relates to a double ladder field, concretely relates to folding double ladder.

Background

A trestle ladder is a type of climbing tool used for work such as finishing in spaces above a plane. When the ladder is used, the front ladder rod, the rear ladder rod and the ground form an isosceles triangle which looks like a Chinese character 'ren', so that the ladder is called as a herringbone ladder. Practical double ladder has fixed double ladder and activity double ladder. The fixed herringbone ladder is a temporary building tool for people; the movable herringbone ladder connects the tops of two ladders together by hinges, can be combined when moving, and is widely applied to electrician operation due to the flexibility of the movable herringbone ladder. The early herringbone ladder is generally made of wood, and along with the development of the metal industry, aluminum alloy materials are mostly utilized at present; the aluminum alloy herringbone ladder has the characteristics of lightness, attractiveness, durability and low manufacturing cost, and is widely used.

For example, application number is CN201520999264.2 a fastening type double ladder, including the double ladder body, the double ladder body is articulated to be constituteed through a connecting axle for two ladder tops, and the equal symmetry of each footboard of double ladder body and the junction of support is equipped with the reinforcement piece, and each reinforcement piece passes through fastening bolt to be fixed on the double ladder body, is equipped with protruding strip on the reinforcement piece, connects fixedly through the plug connector between two ladders of double ladder body, and the both sides at double ladder body top respectively are equipped with two handles.

But current double ladder overall structure is fixed, has a great deal of inconvenience during the use, for example not convenient to accomodate and carry, and holistic highly fixed is not convenient for adjust simultaneously, influences actual operation and uses. To the problem, the utility model designs a folding double ladder.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a folding double ladder solves above-mentioned problem as far as possible.

The utility model discloses a following technical scheme realizes:

a folding herringbone ladder comprises two groups of supporting legs and two groups of movable legs, wherein each group of supporting legs comprises a left supporting leg and a right supporting leg, each group of movable legs comprises a left movable leg and a right movable leg, grooves are formed in the inner sides of the two groups of supporting legs, the movable legs longitudinally slide in the inserting grooves, connecting blocks are fixedly connected to the upper ends of the movable legs of each group, the adjacent connecting blocks are rotatably connected through rotating shafts, a plurality of groups of supporting plates are fixedly connected between the supporting legs of each group and between the movable legs of each group, clamping rods and clamping pins are respectively connected to the outer sides of the supporting legs of each group, and the clamping rods.

Preferably, the left-supporting movable leg left-supporting connecting blocks and the supporting plates are preferably made of aluminum alloy.

Preferably, the slot is a dovetail slot structure, and the movable leg is a dovetail structure matched with the dovetail slot structure.

Preferably, the bottom of the supporting leg is provided with a rubber pad on the ground contact surface and the outer surface of the supporting plate.

Preferably, the outer side of the supporting leg is rotatably connected with one end of a clamping rod through a rotating pin, the clamping pin is fixedly arranged on the outer side of the other group of supporting leg, the other end of the clamping rod is provided with an open slot, the wall of the open slot and the outer side of the clamping pin are wrapped with rubber layers, the open slot is in clamping connection with the clamping pin, the opening of the open slot is slightly smaller than the diameter of the clamping pin, and the difference between the opening of the open slot and the diameter of the clamping pin is controlled to be 0.1.

Preferably, the supporting leg transversely penetrates through a threaded hole, a through hole is formed in the outer side of the movable leg, a limiting bolt is transversely inserted into the threaded hole in a threaded manner, and the inner side end of the limiting bolt is inserted into and matched with the through hole.

The utility model has the advantages that:

the utility model realizes the storage by inserting the movable legs into the dovetail grooves arranged in the supporting legs, and the tops of the adjacent movable legs are rotatably connected by the connecting blocks matched with the rotating shaft to realize the angle adjustment and the storage and carrying, thereby increasing the overall portability; through the spacing joint of the through-hole in spacing bolt screw thread progressive and activity leg outside, realize the highly fixed after the stretching of activity leg, increase holistic practicality, here simultaneously, the joint cooperation of joint pole and bayonet lock can be fixed whole angle, increases the stability of whole use. To sum up, the utility model discloses being convenient for accomodate and carry, highly can adjusting simultaneously, the operation is very simple and convenient during the use, possesses certain marketing prospect.

Drawings

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

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

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic view of the leg of FIG. 1 from an inboard perspective according to the present invention;

fig. 4 is an enlarged schematic view of a structure in fig. 1 according to the present invention.

In the figure: 1-supporting leg, 101-threaded hole, 2-groove, 3-movable leg, 301-through hole, 4-connecting block, 5-rotating shaft, 6-supporting plate, 7-clamping rod, 701-rotating pin, 702-open groove, 8-clamping pin, 9-rubber pad and 10-limiting bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1-4, a folding double ladder, including two sets of landing legs 1 and two sets of movable legs 3, every group landing leg 1 includes two landing legs 1 of controlling, every group movable leg 3 includes two movable legs 3 of controlling, two sets of landing legs 1 inboard all is provided with fluting 2, movable leg 3 longitudinal sliding grafting fluting 2 in, every group movable leg 3 upper end fixedly connected with connecting block 4, rotate through pivot 5 between the adjacent connecting block 4 and connect, equal fixedly connected with multiunit backup pad 6 between every group landing leg 1 and every group movable leg 3, every group landing leg 1 outside is connected with joint pole 7 and bayonet lock 8 respectively, joint pole 7 and bayonet lock 8 are mutually the joint to cooperate.

Specifically, the supporting leg 1, the left-right movable leg 3, the left-right connecting block 4 and the supporting plate 6 are preferably made of an aluminum alloy material, so that the weight is light, the carrying is convenient, and the hardness is suitable. The slot 2 is preferably a dovetail slot configuration and the movable leg 3 is preferably a dovetail configuration that cooperates with the dovetail slot 2 to prevent the movable leg 3 from sliding out of the slot 2. The bottom of landing leg 1 all is provided with rubber pad 9 with ground contact surface and 6 surfaces of backup pad, and the rubber pad 9 of landing leg 1 bottom increases the frictional force with ground, has increased the stability of placing, and the rubber pad 9 in the backup pad 6 outside increases the frictional force that the user stood backup pad 6, increases the stability of construction. The 1 outside of a set of landing leg is passed through the rotating pin 701 and is connected with 7 one end rotations of joint pole, bayonet lock 8 is fixed to be set up in the 1 outside of another set of landing leg, open slot 702 has been seted up to the 7 other end of joint pole, the rubber layer has all been wrapped up in open slot 702 cell wall and the 8 outsides of bayonet lock, open slot 702 and the cooperation of 8 joints of bayonet lock, the opening of open slot 702 slightly is less than the diameter of bayonet lock 8, and the difference control of the two is between 0.1mm-0.3mm, during the use, because the 8 outsides of bayonet lock all are provided with the rubber pad, have the performance of extrudeing the compression by extrusion, during the joint, need make bayonet lock 8 accomodate to the open slot 702 behind. The landing leg 1 transversely runs through and is provided with screw hole 101, and the 3 outsides of activity leg are provided with through-hole 301, and the horizontal screw thread grafting of screw hole 101 has spacing bolt 10, and spacing bolt 10 medial extremity is pegged graft with through-hole 301 and is cooperated, realizes fixing after the height adjustment of activity leg 3.

The utility model discloses during carrying, in taking in the fluting 2 of the swallow-tail form of 1 inboard settings of landing leg with the slip of activity leg 3, rotate the angle that 5 adjacent activity legs of adjustment 3 of pivot make its parallel realization fold and take in, be convenient for wholly carry. When the movable leg fixing device is used, the movable leg 3 is pulled out from the groove 2 in the inner side of the supporting leg 1, the limiting bolts 10 on the two sides of the supporting leg 1 are rotated to be screwed up to the through holes 301 in the two sides of the movable leg 3, and the movable leg 3 is fixed after being adjusted in height. The angle of landing leg 1 and activity leg 3 is adjusted through pivot 5 rotation connecting block 4 afterwards, meanwhile, rotates joint pole 7 through rotating pin 701, utilizes the open slot 702 butt joint cooperation bayonet lock 8 of the joint pole 7 other end to realize the joint and fix, accomplishes the angle after whole angle adjustment fixed, and the rubber layer in the bayonet lock 8 outside and the rubber layer of open slot 702 inboard increase the frictional force of contact surface, guarantees the stability of joint. After the adjustment is accomplished, wholly contradict ground through the rubber pad 9 of landing leg 1 bottom, increase the frictional force with ground, increased the stability of placing.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a folding double ladder, includes two sets of landing legs and two sets of movable legs, every group landing leg is including controlling two landing legs, and every group movable leg is including controlling two movable legs, its characterized in that: two sets of the landing leg inboard all is provided with the fluting, in the activity leg longitudinal sliding grafting fluting, every group activity leg upper end fixedly connected with connecting block, adjacent rotate through the pivot between the connecting block and connect, every group between the landing leg and every group equal fixedly connected with multiunit backup pad between the activity leg, every group the landing leg outside is connected with joint pole and bayonet lock respectively, the joint pole cooperates with the mutual joint of bayonet lock.

2. The folding herringbone ladder of claim 1, wherein: the supporting legs, the movable legs, the connecting blocks and the supporting plates are preferably made of aluminum alloy materials.

3. The folding herringbone ladder of claim 1, wherein: the slot is preferably a dovetail slot structure, and the movable leg is preferably a dovetail structure which is matched with the dovetail slot.

4. The folding herringbone ladder of claim 1, wherein: and rubber pads are arranged on the contact surfaces of the bottoms of the supporting legs and the ground and on the outer surfaces of the supporting plates.

5. The folding herringbone ladder of claim 1, wherein: the outer side of one group of supporting legs is rotatably connected with one end of a clamping rod through a rotating pin, the clamping pin is fixedly arranged on the outer side of the other group of supporting legs, an open slot is formed in the other end of the clamping rod, rubber layers wrap the wall of the open slot and the outer side of the clamping pin, the open slot is in clamping connection with the clamping pin, the opening of the open slot is slightly smaller than the diameter of the clamping pin, and the difference between the opening of the open slot and the diameter of the clamping pin is controlled to be 0..

6. The folding herringbone ladder of claim 1, wherein: the supporting legs transversely penetrate through the supporting legs to be provided with threaded holes, through holes are formed in the outer sides of the movable legs, limiting bolts are transversely inserted into the threaded holes in a threaded mode, and the inner side ends of the limiting bolts are matched with the through holes in an inserted mode.