CN110242205B

CN110242205B - Single-foot telescopic ladder for single person

Info

Publication number: CN110242205B
Application number: CN201910601216.6A
Authority: CN
Inventors: 郭宗勤; 李强; 徐心虎; 马文静; 崔孝卫
Original assignee: Shandong Xinhui Electric Power Technology Co ltd
Current assignee: Shandong Xinhui Electric Power Technology Co.,Ltd.
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2021-08-13
Anticipated expiration: 2039-07-05
Also published as: CN110242205A

Abstract

The invention discloses a single-foot telescopic ladder used by a single person, which comprises a U-shaped plate, pedals and a U-shaped frame, wherein the side edge of the top of the U-shaped plate is connected with the U-shaped frame through a plurality of hinges, pedal rotating shafts are fixedly connected to two sides of each pedal, pedal bearings are sleeved on the surfaces of the two pedal rotating shafts, the two pedal bearings are respectively and fixedly installed at the bottoms of the inner walls of the two sides of the U-shaped plate, sliding grooves are respectively formed in two sides of the bottom end of each pedal, sliding blocks are respectively and slidably installed in the two sliding grooves, shaft holes are respectively formed in the middles of one sides of the two sliding blocks. According to the invention, through the arranged pedals, a user can easily keep balance on the ladder; through the arrangement of the fixed rod and the second adjusting rod, the extension ladder can be used without depending on foreign objects; through the adjusting rod that sets up, make the extension ladder can be steady place on uneven ground.

Description

Single-foot telescopic ladder for single person

Technical Field

The invention relates to a ladder, in particular to a single-foot telescopic ladder used by a single person.

Background

The extension ladder, as the name suggests, can stretch and shorten like the fishing rod, is generally used in daily life.

Although the extension ladder has many advantages, the conventional extension ladder still has the following problems in the using process:

1. the traditional telescopic ladder has narrow and small cross beams, and the foot bottom of a user has strong pressure, so that the traditional telescopic ladder is not beneficial to keeping balance on the ladder by people;

2. the traditional extension ladder needs to be placed by foreign objects;

3. traditional extension ladder receives when placing uneven ground surface, places unstably, and user's safety does not have the guarantee.

Disclosure of Invention

The invention aims to provide a single-foot telescopic ladder used by a single person, and aims to solve the problems that the traditional telescopic ladder provided in the background technology is narrow in beam, needs to depend on foreign objects and is unstable in placement.

In order to achieve the purpose, the invention provides the following technical scheme: a single-person-used single-foot telescopic ladder comprises a U-shaped plate, pedals and a U-shaped frame, wherein the tops of the inner walls of two sides of the U-shaped plate are respectively provided with a first U-shaped groove, the inner walls of two sides of the first U-shaped grooves are respectively provided with a U-shaped plate chute, the tops of the inner walls of two sides of the U-shaped plate are respectively connected with a first telescopic rod through a first sliding strip in a sliding manner, the tops of one side of the two first telescopic rods are respectively provided with a second U-shaped groove, the inner walls of two sides of the two second U-shaped grooves are respectively provided with a first chute, the tops of two inner walls of two sides of the two first telescopic rods are respectively connected with a second telescopic rod through a second sliding strip in a sliding manner, one side of the two second telescopic rods is respectively provided with a third U-shaped groove, the inner walls of one end of the two third U-shaped grooves are respectively provided with a first adjusting rod chute, one end of the two second telescopic rods are respectively connected with a first adjusting rod through a first adjusting rod sliding strip in a sliding manner, one end of each of the two first adjusting rods is fixedly connected with an installation platform through a screw, the bottom ends of the two installation platforms are fixedly connected with installation seats, the middle part of one side of each of the two installation seats is provided with an axle hole, the two installation seats are connected with a first anti-skid pad through a rotating shaft in an inserting manner, the side edge of the top of the U-shaped plate is connected with a U-shaped frame through a plurality of hinges, the middle parts of the outer walls of the two sides of the U-shaped plate are provided with axle holes, fixed rod bearings are fixedly arranged in the two axle holes, one end of each fixed rod is sleeved on each fixed rod bearing, the other end of each fixed rod is sleeved with a fixed rod bearing, the fixed rod bearings sleeved on the other end of each fixed rod are respectively and fixedly arranged on the top parts of the outer walls of the two sides of the U-shaped frame, the inner walls of the two sides of the U-shaped frame are provided with fourth U-shaped grooves, and the inner walls of the two sides of the fourth U-shaped grooves are provided with second adjusting rod sliding grooves, the inner wall of U type frame both sides all has the second adjustment pole, two through second adjustment pole draw bar sliding connection the equal fixedly connected with second slipmat in bottom of second adjustment pole, the equal fixedly connected with footboard pivot in footboard both sides, two all the cover in footboard pivot surface is equipped with pedal bearing, two pedal bearing fixed mounting respectively is to the bottom of U template both sides inner wall, the spout has all been seted up, two to the both sides of footboard bottom the inside equal slidable mounting of spout has the slider, two the middle part of slider one side all is seted up with the shaft hole, two the slider all alternates through the pivot and is connected to the one end of L type footboard die-pin pole, two the other end of L type footboard die-pin all is equipped with the footboard die-pin bearing, two the bottom of footboard die-pin bearing fixed mounting respectively to U template both sides inner wall.

As a further technical scheme of the invention, the space between the two first telescopic rods and the space between the two second telescopic rods are connected with the pedal through rotating shafts at two sides of the pedal and L-shaped pedal support rods, and at least two pedals are connected between the two first telescopic rods, the space between the two second telescopic rods and the inner walls at two sides of the U-shaped plate.

As a further technical scheme of the present invention, the fixing rod includes a first L-shaped rod, a second L-shaped rod, and two limit pins, one end of the first L-shaped rod is provided with a pin hole, the other end of the first L-shaped rod is inserted and connected to one end of the second L-shaped rod through a rotating shaft, the other end of the second L-shaped rod is provided with a pin hole, and the limit pins are inserted and connected in the pin hole.

As a further technical scheme of the invention, the bottom parts of the outer walls of two sides of the two U-shaped frames are respectively and alternately connected with a telescopic limiting device, the top parts of one sides of the two first adjusting rods are respectively provided with two rows of first adjusting limiting holes distributed at equal intervals, the top parts of one sides of the two second adjusting rods are respectively provided with two rows of second adjusting limiting holes distributed at equal intervals, and the first adjusting limiting holes and the second adjusting limiting holes are matched with the telescopic limiting devices.

As a further technical scheme of the invention, the telescopic limiting device comprises a limiting handle, two limiting springs and two limiting buckles, wherein the two ends of the limiting handle are fixedly connected with the limiting springs, metal columns are inserted into the two limiting springs, one ends of the two metal columns are respectively and fixedly connected to the two ends of the limiting handle, and the other ends of the two metal columns are respectively and fixedly connected to one ends of the limiting buckles.

According to a further technical scheme, telescopic limiting devices are respectively and alternately connected to the side edges of the outer walls of the two sides of the U-shaped plate, telescopic limiting holes matched with the telescopic limiting devices are respectively formed in the side edges of the outer walls of the two sides of the two first telescopic rods and the two second telescopic rods, and the telescopic limiting devices are respectively and alternately connected to the other side edges of the outer walls of the two sides of the two first telescopic rods and the two second telescopic rods.

Compared with the prior art, the single-foot telescopic ladder for single person use has the beneficial effects that: 1) the pressure intensity of the sole of a user can be reduced through the arranged pedals, so that the balance of the user on the ladder can be kept; 2) through the U-shaped frame, the fixed rod and the second adjusting rod, the extension ladder can be used without depending on foreign objects; 3) through the first adjusting rod and the second adjusting rod that set up, the user can freely stretch the length of four corners of extension ladder, makes placing that extension ladder can be steady on uneven road surface.

Drawings

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

FIG. 2 is a schematic structural diagram of a U-shaped plate according to the present invention;

FIG. 3 is a schematic structural view of the first extendable rod of the present invention;

FIG. 4 is a schematic view of a second extendable rod of the present invention;

FIG. 5 is a schematic view of a first adjusting lever according to the present invention;

FIG. 6 is a schematic view of the pedal of the present invention;

FIG. 7 is a front view of the pedal of the present invention;

FIG. 8 is a left side elevational view of the pedal of the present invention;

FIG. 9 is a bottom plan view of the pedal of the present invention;

FIG. 10 is a schematic structural view of a fixing rod according to the present invention;

FIG. 11 is a partial schematic view of the present invention at A;

FIG. 12 is a partial structural view of the present invention at B.

In the figure: 1. a U-shaped plate; 2. a first telescopic rod; 3. a second telescopic rod; 4. a first adjusting lever; 5. a pedal; 6. a U-shaped frame; 7. a second adjusting lever; 8. a first non-slip mat; 9. a second non-slip mat; 10. a hinge; 11. fixing the rod; 12. a telescopic limiting device; 13. a pedal spindle; 14. a slider; 15. an L-shaped pedal support rod; 16. a telescopic limiting hole; 17. a limiting spring; 18. a limiting handle; 19. a U-shaped plate chute; 20. a first slide bar; 21. a first chute; 22. a second slide bar; 23. a first adjusting rod chute; 24. a first adjusting rod slide bar; 25. a first L-shaped bar; 26. a second L-shaped bar; 27. a spacing pin; 28. a limiting buckle; 29. an installation table; 30. a mounting seat; 31. a first adjusting limit hole; 32. a second adjusting limit hole; 33. a pedal bearing; 34. a pedal rod bearing; 35. a fixed rod bearing; 36. a first U-shaped groove; 37. a second U-shaped groove; 38. a third U-shaped groove; 39. a fourth U-shaped groove; 40. a second adjusting rod chute; 41. a second adjustment rod slide.

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. 1-12, the present invention provides a single-foot telescopic ladder, comprising a U-shaped plate 1, a pedal 5 and a U-shaped frame 6, wherein the top of the inner wall of each side of the U-shaped plate 1 is provided with a first U-shaped groove 36, the inner wall of each side of the two first U-shaped grooves 36 is provided with a U-shaped sliding groove 19, the top of the inner wall of each side of the U-shaped plate 1 is slidably connected with a first telescopic rod 2 through a first sliding strip 20, the top of each side of the two first telescopic rods 2 is provided with a second U-shaped groove 37, the inner wall of each side of the two second U-shaped grooves 37 is provided with a first sliding groove 21, the top of each side of the two inner walls of the two first telescopic rods 2 is slidably connected with a second telescopic rod 3 through a second sliding strip 22, each side of the two second telescopic rods 3 is provided with a third U-shaped groove 38, the inner wall of each side of each end of each of the two third U-shaped grooves 38 is provided with a first adjusting rod sliding groove 23, one end of each of the two second telescopic rods 3 is slidably connected with a first adjusting rod 4 through a first adjusting rod sliding strip 24, one end of each of the two first adjusting rods 4 is fixedly connected with an installation platform 29 through a screw, the bottom ends of the two installation platforms 29 are fixedly connected with installation seats 30, the middle part of one side of each of the two installation seats 30 is provided with an axle hole, the two installation seats 30 are respectively connected with a first anti-skid pad 8 through a rotating shaft in an inserting way, the side of the top of the U-shaped plate 1 is connected with a U-shaped frame 6 through a plurality of hinges 10, the middle parts of the outer walls of the two sides of the U-shaped plate 1 are provided with axle holes, fixed rod bearings 35 are respectively and fixedly installed in the axle holes, one end of each fixed rod 11 is sleeved by each fixed rod bearing 35, the other end of each fixed rod 11 is sleeved by each fixed rod bearing 35, the fixed rod bearings 35 sleeved by the other end of each fixed rod 11 are respectively and fixedly installed on the top parts of the outer walls of the two sides of the U-shaped frame 6, the inner walls, the inner wall of 6 both sides of U type frame all has second adjusting rod 7 through 41 sliding connection of second adjusting rod draw runner, the equal fixedly connected with second slipmat 9 in bottom of two second adjusting rod 7, the equal fixedly connected with footboard pivot 13 in footboard 5 both sides, two footboard pivot 13 surfaces all overlap and are equipped with footboard bearing 33, two footboard bearing 33 respectively fixed mounting to the bottom of U template 1 both sides inner wall, the spout has all been seted up to the both sides of footboard 5 bottom, the inside equal slidable mounting in two spouts has slider 14, the middle part of two slider 14 one sides all is seted up with the shaft hole, two slider 14 all alternate the one end of being connected to L type footboard die-pin 15 through the pivot, the other end of two L type footboard die-pins 15 all overlaps and is equipped with die-pin bearing 34, two die-pin bearing 34 respectively fixed mounting to the bottom of U template 1 both sides inner wall.

Further, all be connected with footboard 5 through footboard pivot 13 and L type footboard die-pin 15 of footboard 5 both sides between two first telescopic links 2 and between two second telescopic links 3, between two first telescopic links 2, between two second telescopic links 3 and all be connected with two footboard 5 between the inner wall of U template 1 both sides at least, the person of being convenient for climbs the extension ladder.

Further, the dead lever 11 includes first L type pole 25, second L type pole 26 and two spacer pins 27, and the pinhole has been seted up to the one end of first L type pole 25, and the other end of first L type pole 25 alternates through the pivot and is connected to the one end of second L type pole 26, and the pinhole has been seted up to the other end of second L type pole 26, and the interpenetration is connected with spacer pin 27 in the pinhole, prevents that U type board 1 and U type frame 6 from taking place to rotate in the use.

Further, the bottom of the outer wall of two sides of the two U-shaped frames 6 is connected with a telescopic limiting device 12 in an inserting mode, the top of one side of each first adjusting rod 4 is provided with two rows of first adjusting limiting holes 31 distributed at equal intervals, the top of one side of each second adjusting rod 7 is provided with two rows of second adjusting limiting holes 32 distributed at equal intervals, the first adjusting limiting holes 31 and the second adjusting limiting holes 32 are matched with the telescopic limiting device 12, and the telescopic ladder is guaranteed to be placed stably.

Further, flexible stop device 12 includes spacing handle 18, two spacing springs 17 and two spacing buckles 28, the equal fixedly connected with spacing spring 17 in both ends of spacing handle 18, all alternate in two spacing springs 17 and have the metal post, the one end of two metal posts is fixed connection respectively to the both ends of spacing handle 18, the equal fixed connection of the other end of two metal posts to the one end of spacing buckle 28, prevents that each slip member piece from taking place relative slip in the use.

Further, the avris of the outer wall of 1 both sides of U template all alternates and is connected with flexible stop device 12, the avris of the outer wall of 3 both sides of two first telescopic links 2 and two second telescopic links all seted up with flexible stop device 12 assorted spacing hole 16, another avris of the outer wall of 3 both sides of two first telescopic links 2 and two second telescopic links all alternates and is connected with flexible stop device 12, prevent to take place relative slip between first telescopic link 2 and U template 1 and between second telescopic link 3 and first telescopic link 2 in the use.

When the single-foot telescopic ladder is used, the telescopic ladder is placed on the ground before being used, one hand holds the side of the outer wall of the U-shaped plate 1, the other hand pulls the second telescopic rod 3 first until the first telescopic rod 2 is pulled out, the telescopic limiting device 12 on the U-shaped plate 1 is clamped into the telescopic limiting hole 16 on the first telescopic rod 2, the telescopic limiting device 12 on the first telescopic rod 2 is clamped into the telescopic limiting hole 16 on the second telescopic rod 3, then the two second adjusting rods 7 are pulled out until the telescopic limiting device 12 on the U-shaped frame 6 is clamped into the second adjusting limiting hole 32, then the U-shaped frame 6 is rotated around the hinge 10 until the fixing rod 11 is completely opened, then the telescopic ladder is stood on the ground, the pedals 5 are pulled one by one, one end of the L-shaped pedal support rod 15 is abutted against one end of the sliding block 14 connected with the bottom end of the pedal 5, then the first adjusting rod 4 is pulled until the first anti-skid pad 8 connected with the first adjusting rod 4 is contacted with the ground, then pulling the telescopic limiting device 12 on the second adjusting rod 7, simultaneously pulling the second adjusting rod 7 to enable the second anti-skid pad 9 at the bottom of the adjusting rod 7 to contact the ground, and then using the telescopic ladder; after the use, firstly, the U-shaped plate 1 is rotated around the hinge 10, the fixed rod 11 is retracted, the U-shaped plate 1 and the U-shaped frame 6 are tightly attached together, the extension ladder is horizontally placed on the ground, then the extension limiting device 12 on the U-shaped frame 6 is pulled, meanwhile, the second adjusting rod 7 is pushed until the second adjusting rod 7 can not be pushed continuously, then the telescopic limiting device 12 on the second telescopic rod 3 is pulled, and the first adjusting rod 4 is pushed at the same time until the first adjusting rod 4 can not be pushed continuously, then the pedal 5 is pulled to be retracted, the telescopic limiting device 12 on the first telescopic rod 2 is pulled, and the pedal 5 between the two second telescopic rods 3 is pushed until the second telescopic rods 3 can not be pushed, and then the telescopic limiting device 12 on the U-shaped plate 1 is pulled, and the pedal 5 between the two first telescopic rods 2 is pushed until the first telescopic rods 2 can not be pushed.

In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A single-foot telescopic ladder used by a single person comprises a U-shaped plate (1), pedals (5) and a U-shaped frame (6), and is characterized in that first U-shaped grooves (36) are formed in the tops of the inner walls of two sides of the U-shaped plate (1), U-shaped plate sliding grooves (19) are formed in the inner walls of two sides of the two first U-shaped grooves (36), the tops of the inner walls of two sides of the U-shaped plate (1) are connected with first telescopic rods (2) through first sliding strips (20) in a sliding mode, second U-shaped grooves (37) are formed in the tops of one sides of the two first telescopic rods (2), first sliding grooves (21) are formed in the inner walls of two sides of the two second U-shaped grooves (37), second telescopic rods (3) are connected with the tops of the inner walls of two sides of the first telescopic rods (2) through second sliding strips (22) in a sliding mode, and third U-shaped grooves (38) are formed in one sides of the two second telescopic rods (3), the inner walls of two sides of one end of each of the two third U-shaped grooves (38) are respectively provided with a first adjusting rod sliding groove (23), one end of each of the two second telescopic rods (3) is respectively connected with a first adjusting rod (4) in a sliding manner through a first adjusting rod sliding strip (24), one end of each of the two first adjusting rods (4) is respectively fixedly connected with an installation platform (29) through a screw, the bottom ends of the two installation platforms (29) are respectively fixedly connected with an installation seat (30), the middle part of one side of each of the two installation seats (30) is respectively provided with a shaft hole, the two installation seats (30) are respectively and alternately connected with a first anti-skid pad (8) through a rotating shaft, the side of the top of the U-shaped plate (1) is connected with a U-shaped frame (6) through a plurality of hinges, the shaft holes are respectively formed in the middle parts of the outer walls of two sides of the U-shaped plate (1), and fixed rod bearings (35) are respectively and fixedly installed in the shaft holes, the two fixing rod bearings (35) are sleeved at one end of each fixing rod (11), the other end of each fixing rod (11) is sleeved with the fixing rod bearing (35), the fixing rod bearings sleeved at the other ends of the two fixing rods (11) are fixedly installed at the tops of the outer walls of the two sides of the U-shaped frame (6) respectively, the inner walls of the two sides of the U-shaped frame (6) are provided with fourth U-shaped grooves (39), the inner walls of the two sides of the two fourth U-shaped grooves (39) are provided with second adjusting rod sliding grooves (40), the inner walls of the two sides of the U-shaped frame (6) are connected with second adjusting rods (7) in a sliding mode through second adjusting rod sliding strips (41), the bottom ends of the two second adjusting rods (7) are fixedly connected with second anti-skid pads (9), pedal rotating shafts (13) are fixedly connected with the two sides of the pedal (5), and pedal bearings (33) are sleeved on the surfaces of the two pedal rotating shafts (13), two footboard bearing (33) are fixed mounting respectively to the bottom of U template (1) both sides inner wall, the spout has all been seted up to the both sides of footboard (5) bottom, two the inside equal slidable mounting of spout has slider (14), two the shaft hole is all seted up at the middle part of slider (14) one side, two slider (14) all are connected to the one end of L type footboard die-pin (15) through the pivot interlude, two the other end of L type footboard die-pin (15) all overlaps and is equipped with footboard die-pin bearing (34), two footboard die-pin bearing (34) are fixed mounting respectively to the bottom of U template (1) both sides inner wall, two all are connected with footboard (5) through pivot and L type footboard die-pin (15) of footboard (5) both sides between first telescopic link (2) and between two second telescopic link (3), two between first telescopic link (2), At least two pedals (5) are connected between the two second telescopic rods (3) and between the inner walls of the two sides of the U-shaped plate (1), the fixed rod (11) comprises a first L-shaped rod (25), a second L-shaped rod (26) and two limit pins (27), a pin hole is formed in one end of the first L-shaped rod (25), the other end of the first L-shaped rod (25) is connected to one end of the second L-shaped rod (26) in an inserting manner through a rotating shaft, a pin hole is formed in the other end of the second L-shaped rod, the limit pins (27) are connected in the pin hole in an inserting manner, telescopic limit devices (12) are connected to the bottoms of the outer walls of the two sides of the U-shaped frame (6) in an inserting manner, two rows of first adjusting limit holes (31) distributed at equal intervals are formed in the top of one side of the two first adjusting rods (4), two rows of second adjusting limit holes (32) distributed at equal intervals are formed in the top of one side of the two second adjusting rods (7), and the first adjustment limiting hole (31) and the second adjustment limiting hole (32) are both matched with a telescopic limiting device (12), the telescopic limiting device (12) comprises a limiting handle (18), two limiting springs (17) and two limiting buckles (28), the two ends of the limiting handle (18) are both fixedly connected with the limiting springs (17), metal columns are inserted into the two limiting springs (17), one ends of the two metal columns are respectively and fixedly connected to the two ends of the limiting handle (18), the other ends of the two metal columns are both fixedly connected to one ends of the limiting buckles (28), telescopic limiting devices (12) are respectively inserted and connected to the side edges of the outer walls on the two sides of the U-shaped plate (1), and telescopic limiting holes (16) matched with the telescopic limiting devices (12) are respectively arranged on the side edges of the outer walls on the two sides of the first telescopic rod (2) and the two second telescopic rods (3), two another avris of first telescopic link (2) and two second telescopic link (3) both sides outer wall all alternates and is connected with flexible stop device (12).