CN210033247U

CN210033247U - All-terrain herringbone ladder

Info

Publication number: CN210033247U
Application number: CN201920549467.XU
Authority: CN
Inventors: 吕霞
Original assignee: Lyu Xia
Current assignee: Lyu Xia
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2020-02-07
Anticipated expiration: 2029-04-22

Abstract

The utility model belongs to the technical field of daily appliances, in particular to an all-terrain herringbone ladder, which comprises a platform, wherein two sleeves are arranged in the platform, the inner surfaces of the sleeves are sleeved with the outer surface of a rotating shaft, connecting blocks are fixedly connected to both ends of the rotating shaft, and the lower ends of the connecting blocks are respectively and fixedly connected with a left ladder leg and a right ladder leg; through setting up platform, sleeve, pivot, connecting block, handle, right ladder leg, inner leg, cavity, pawl, extension spring, wire rope, lead to the groove, a spring, spout, rack, dead lever, bearing, screwed pipe, screw thread post and running-board, through the cooperation between each structure, four legs can both be separately the flexible of electrodeless formula, be real full topography double ladder, the maximum value is exactly practical, convenient, only need pull the handle during this ladder use, right the ladder, the inner leg will stretch out automatically, after the ladder is stabilized, the installation to the ladder can be accomplished to the loose handle and use.

Description

All-terrain herringbone ladder

Technical Field

The utility model belongs to the technical field of daily apparatus, concretely relates to all-terrain double ladder.

Background

When the ordinary herringbone ladder is used, the use range is limited due to the limitation of the terrain and the height which can be lifted, and particularly when the herringbone ladder is used in the field, the danger coefficient of the herringbone ladder is greatly increased due to the uneven terrain, so that the situation that the ladder falls and people are injured is easily caused. Simultaneously, to the double ladder increase the height, generally adopt externally to increase the companion ladder, but this kind of mode has increased the structure of double ladder, is unfavorable for the storage transportation demand of double ladder.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides an all terrain double ladder has can be in stair department, not the wall of horizontal plane with the department, the hillside orchard in the place use that ground is not the horizontal plane, and can reduce parking space's characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: the all-terrain herringbone ladder comprises a platform, two sleeves are arranged in the platform, the inner surfaces of the sleeves are sleeved with the outer surface of a rotating shaft, connecting blocks are fixedly connected to two ends of the rotating shaft, a left ladder leg and a right ladder leg are fixedly connected to the lower end of each connecting block respectively, an inner leg is arranged in the right ladder leg, a rack is arranged on the inner leg, a spring is fixedly connected to the top of the inner leg, the other end of the spring is fixedly connected to the top end of a sliding groove, a sliding groove is arranged in the right ladder leg, the sliding groove is slidably connected with the inner leg, a cavity is formed in the bottom of the right ladder leg, a pawl is arranged in the cavity and is clamped with the rack, a steel wire rope is fixedly connected to one end of the pawl and is placed in the through groove, a tension spring is fixedly connected to, the pedal is arranged between the right ladder legs, a fixing rod is movably connected to the side face of the pedal through a pin shaft, a bearing is inlaid at one end of the fixing rod, the inner surface of the bearing is sleeved with the outer surface of a threaded pipe, the inner surface of the threaded pipe is in threaded connection with the outer surface of a threaded column, and the other end of the threaded column is movably connected to the side face of the pedal of the left ladder leg through the pin shaft.

Preferably, the steel wire ropes are connected with handles, and the handles are arranged on the side faces of the platform.

Preferably, the outermost side face of the rack is parallel to one face of the chute and is attached to the chute.

Preferably, the left ladder leg and the right ladder leg are identical in structure.

Preferably, the left ladder leg and the right ladder leg are both formed by hollow square tubes with strength, such as aluminum alloy stainless steel.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses, through setting up platform, sleeve, pivot, connecting block, handle, right ladder leg, inner leg, cavity, pawl, extension spring, wire rope, logical groove, spring, spout, rack, dead lever, bearing, screwed pipe, screw thread post and running-board, the leg of this ladder both sides can rotate the screwed pipe and draw in and can reduce the holistic parking space of ladder, the ladder both sides respectively have the running-board, short type ladder each side has about four running-boards, high type ladder each side has about seven running-boards, and each running-board width is unified more than ten centimeters, people can not have the danger of slipping off on standing, the foot does not have uncomfortable sense on standing for a long time, this ladder top platform is also very wide, the people can also stand on the top and operate, the spring that every ladder leg inside all has light intensity presses on respective inner leg, when pawl and rack are in the detached state, every flexible leg is automatic toward extending outward, degree of convenience when using with regard to greatly increased people like this, the people only need to put the ladder positive alright, the leg can automatic subsides real ground, all hang a extension spring on every pawl of outer leg inside, ensure to let pawl stick to the real rack all the time, let flexible leg be in the lock dead can not telescopic state all the time, only when pulling the handle above the ladder, when the separation rack that pulls four pawls simultaneously through thin wire rope, flexible leg just can be according to the concrete physiognomy automatically regulated in ground, through the cooperation between each structure, four legs can both be separately the flexible of electrodeless formula, be real all-terrain double ladder, the maximum value is just practical, it is convenient, only need to pull the handle during this ladder use, right the ladder, the inner leg will stretch out automatically, after the ladder is stable, the installation of ladder can be accomplished to the handle of loosing down.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a front view of the present invention;

FIG. 2 is a schematic structural view of the present invention from the side;

FIG. 3 is a schematic view of a partial front view structure of the present invention;

in the figure: 1. a platform; 2. a sleeve; 3. a rotating shaft; 4. connecting blocks; 5. a handle; 6. a right ladder leg; 7. an inner leg; 8. a cavity; 9. a pawl; 10. a tension spring; 11. a wire rope; 12. a through groove; 13. a spring; 14. a chute; 15. a rack; 16. fixing the rod; 17. a bearing; 18. a threaded pipe; 19. a threaded post; 20. a foot pedal; 21. a left ladder leg.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: an all-terrain herringbone ladder comprises a platform 1, two sleeves 2 are arranged in the platform 1, the inner surfaces of the sleeves 2 are sleeved with the outer surface of a rotating shaft 3, two ends of the rotating shaft 3 are fixedly connected with connecting blocks 4, the lower ends of the connecting blocks 4 are respectively and fixedly connected with a left ladder leg 21 and a right ladder leg 6, an inner leg 7 is arranged in the right ladder leg 6, a rack 15 is arranged on the inner leg 7, the top of the inner leg 7 is fixedly connected with a spring 13, the spring 13 is pressed on the respective inner leg, when a pawl 9 and the rack 15 are in a separated state, each telescopic leg automatically extends outwards, so that the convenience degree of a person in use is greatly increased, the person only needs to swing the ladder, the legs can automatically stick to the ground, the other ends of the springs 13 are fixedly connected to the top end of a sliding groove 14, a sliding groove 14 is arranged in the right ladder leg 6, and the sliding groove 14 is in sliding connection with the, the bottom of the right ladder leg 6 is provided with a cavity 8, a pawl 9 is arranged in the cavity 8, the pawl 9 is clamped with a rack 15, one end of the pawl 9 is fixedly connected with a steel wire rope 11, the steel wire rope 11 is placed in a through groove 12, one end of the pawl 9 is fixedly connected with a tension spring 10, the tension spring 10 is hung on the pawl 9 to ensure that the pawl 9 is always tightly attached to the rack 15, the telescopic legs are always locked and can not be stretched, only when a handle 5 on the ladder is pulled, the four pawls 9 are simultaneously pulled through the thin steel wire ropes 11 to separate the rack 15, the telescopic legs can be automatically adjusted according to the specific landform of the ground, the other end of the tension spring 10 is fixedly connected to the bottom of the cavity 8, a pedal plate 20 is arranged between the right ladder legs 6, the side surface of the pedal plate 20 is movably connected with a fixed rod 16 through a pin shaft, the inner surface of the bearing 17 is sleeved with the outer surface of a threaded pipe 18, the inner surface of the threaded pipe 18 is in threaded connection with the outer surface of a threaded column 19, the threaded pipe 18 is rotated to be folded to reduce the storage space of the whole ladder, the other end of the threaded column 19 is movably connected to the side surface of a pedal 20 of a left ladder leg 21 through a pin shaft, each side of a short ladder is provided with four pedals 20 or so, each side of a high ladder is provided with seven pedals 20 or so, the width of each pedal 20 is unified to be more than ten centimeters, people cannot slide down when standing, feet cannot feel uncomfortable when standing for a long time, the top platform 1 of the ladder is wide, and people can also stand at the top to work.

Specifically, the steel wire ropes 11 are connected with the handles 5, and the handles 5 are arranged on the side faces of the platform 1.

Specifically, the outermost surface of the rack 15 is parallel to one surface of the chute 14, and is attached to the chute 14.

Specifically, the left ladder leg 21 and the right ladder leg 6 have the same structure.

Specifically, the left ladder leg 21 and the right ladder leg 6 are each formed by a hollow square tube having strength such as aluminum alloy stainless steel.

The utility model discloses a theory of operation and use flow: the utility model discloses when using, at first rotate screwed pipe 18, make the ladder leg separately to suitable distance, put the ladder in suitable position, pull handle 5 upwards, pawl 9 and rack 15 just are in the separation state, four flexible legs just can stretch out and draw back at will, the people only need right the ladder at this time, no matter what topography on ground, the bottom of four legs of ladder can both automatic paste real ground, restore handle 5 to the horizontality, pawl 9 and rack 15 are in the lock dead state, the inner leg has just been fixed and can not be stretched out and drawn back, the people just can be on the ladder safe and reliable's work.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. All terrain double ladder, including platform (1), its characterized in that: the improved structure is characterized in that two sleeves (2) are arranged in the platform (1), the inner surfaces of the sleeves (2) are sleeved with the outer surface of the rotating shaft (3), connecting blocks (4) are fixedly connected to the two ends of the rotating shaft (3), the lower ends of the connecting blocks (4) are respectively fixedly connected with a left ladder leg (21) and a right ladder leg (6), an inner leg (7) is arranged in the right ladder leg (6), a rack (15) is arranged on the inner leg (7), a spring (13) is fixedly connected to the top of the inner leg (7), the other end of the spring (13) is fixedly connected to the top end of the chute (14), a chute (14) is arranged in the right ladder leg (6), the chute (14) is slidably connected with the inner leg (7), a cavity (8) is arranged at the bottom of the right ladder leg (6), a pawl (9) is arranged in the cavity (8), and the pawl (9) is connected, pawl (9) one end fixedly connected with wire rope (11), place in logical groove (12) wire rope (11), the one end fixedly connected with extension spring (10) of pawl (9), the other end fixed connection of extension spring (10) is in cavity (8) bottom, be provided with running-board (20) between right side ladder leg (6), the side of running-board (20) has dead lever (16) through round pin axle swing joint, the one end of dead lever (16) is inlayed and is had bearing (17), the internal surface of bearing (17) cup joints with the surface of screwed pipe (18), the internal surface of screwed pipe (18) and the surface threaded connection of screw thread post (19), the other end of screw thread post (19) is through round pin axle swing joint running-board (20) side of left ladder leg (21).

2. The all-terrain herringbone ladder of claim 1, wherein: the steel wire ropes (11) are connected with the handles (5), and the handles (5) are arranged on the side faces of the platform (1).

3. The all-terrain herringbone ladder of claim 1, wherein: the outermost side face of the rack (15) is parallel to one face of the sliding chute (14) and is attached to the sliding chute (14).

4. The all-terrain herringbone ladder of claim 1, wherein: the left ladder leg (21) and the right ladder leg (6) have the same structure.

5. The all-terrain herringbone ladder of claim 1, wherein: the left ladder leg (21) and the right ladder leg (6) are both formed by hollow square tubes with strength made of aluminum alloy stainless steel and the like.