CN212359598U - Light adjustable aluminum ladder with handrails - Google Patents

Light adjustable aluminum ladder with handrails Download PDF

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Publication number
CN212359598U
CN212359598U CN202020429816.7U CN202020429816U CN212359598U CN 212359598 U CN212359598 U CN 212359598U CN 202020429816 U CN202020429816 U CN 202020429816U CN 212359598 U CN212359598 U CN 212359598U
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square pipe
pipe
pedal
square
wall
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CN202020429816.7U
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Chinese (zh)
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路春华
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Zhejiang Yaoou Auto Parts Co ltd
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Zhejiang Yaoou Auto Parts Co ltd
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Abstract

The utility model discloses a lightweight adjustable aluminum ladder with handrails, the angle of the pedal of which can be adjusted to adapt to stopping points with different gradients; the floor has a good contact surface with the ground, and does not shake; the handrail is arranged, so that the user can lean on the handrail in the process of getting on or off the motor home. A light adjustable aluminum ladder with handrails is characterized in that a first internal thread pipe and a second internal thread pipe are arranged on the bottom surface of a pedal; the first square pipe and the second square pipe are hinged through a crescent plate; the first screw penetrates through the inner wall of the first square pipe to form hinged connection with the head of the first internal threaded pipe; the second screw penetrates through the inner wall of the second square pipe to form hinged connection with the head of the second internal threaded pipe; handrails are fixed on the two first square pipes; the handrail comprises two parallel vertical rods, and a handrail is connected between the tops of the two vertical rods; be equipped with first rivet nut on the antetheca of first side's pipe, be fixed with the fastener on the outer wall of first side's pipe, be equipped with the second on the outer wall of second side's pipe and draw anchor nut.

Description

Light adjustable aluminum ladder with handrails
Technical Field
The utility model belongs to the technical field of the aluminium ladder, specifically speaking relates to a take adjustable aluminium ladder of lightweight of handrail.
Background
The aluminum alloy ladder is made of high-strength aluminum alloy sections; the weight is light; the carrying is convenient; the advanced square tube extrusion riveting technology has good safety; the motor home, also called as "home on wheel", has two functions of "house" and "car", but its attribute is also car, is a kind of movable car with essential basic facilities at home.
The chassis of car as a house all is very high, and in order to realize personnel business turn over carriage, the vehicle generally is equipped with simple and easy footboard, and supplementary people's car as a house from top to bottom, simple and easy footboard has following defect: 1. the angle of the existing motor home pedal is fixed, so that the angle cannot be adjusted, and the motor home pedal is not suitable for parking points with different gradients; 2. the simple pedals are suspended on the ground, do not contact with the ground, and are not supported, so that people can easily shake when walking; 3. the simple pedal is not provided with the handrail, so that people can walk up and down without holding articles, and the simple pedal is not safe enough.
Disclosure of Invention
The utility model aims at providing a lightweight adjustable aluminum ladder with handrails, the angle of the pedal of which can be adjusted to adapt to the parking points with different gradients; the floor has a good contact surface with the ground, and does not shake; the handrail is arranged, so that the user can lean on the handrail in the process of getting on or off the motor home.
In order to solve the technical problem, the purpose of the utility model is to realize like this:
a light-weight adjustable aluminum ladder with handrails comprises a pedal, wherein a first internal thread pipe and a second internal thread pipe are arranged on the bottom surface of the pedal; the left end and the right end of the pedal are hinged with adjusting components, and the two groups of adjusting components are symmetrically arranged on the two sides of the pedal and are used for rotating the included angle between the pedal and the ground; the adjusting assembly comprises a first square tube hinged with the first internal threaded tube and a second square tube hinged with the second internal threaded tube; the first square pipe and the second square pipe are hinged through a crescent plate; the first screw penetrates through the inner wall of the first square pipe to form hinged connection with the head of the first internal threaded pipe; the second screw penetrates through the inner wall of the second square pipe to form hinged connection with the head of the second internal threaded pipe; handrails are fixed on the two first square pipes; the handrail comprises two parallel vertical rods, and a handrail is connected between the tops of the two vertical rods; a first rivet nut is arranged on the front wall of the first square pipe, a clamping piece is fixed on the outer wall of the first square pipe, and a second anchor nut is arranged on the outer wall of the second square pipe; the clamping piece comprises a Jiong-shaped through groove, lugs extend from the bottoms of the side walls at the two ends of the through groove, the lugs are fixedly connected with the outer wall of the first square pipe, the Jiong-shaped through groove and the outer wall of the first square pipe enclose a clamping groove, and the vertical rod penetrates through the clamping groove to form limiting fixation; the hand-screwed screw penetrates through the vertical rod and is fixedly connected with the first rivet nut or the second rivet nut; one end of the crescent plate is hinged with the first square pipe through a first hinge connecting piece, and the other end of the crescent plate is hinged with the second square pipe through a second hinge connecting piece; the middle of the crescent plate is provided with a first through hole; the inner wall and the outer wall of the second square pipe are provided with second through holes which are opposite; the pin passes through the first through hole and the second through hole to form fixed connection. The first square pipe and the second square pipe are respectively hinged with a first internal thread pipe and a second internal thread pipe of the pedal, so that the first square pipe controls the first internal thread pipe to rotate, and the second square pipe controls the second internal thread pipe to rotate, so that an included angle formed by the pedal and a horizontal plane is controlled, and the pedal is suitable for roads with various gradients; one end of the crescent plate is hinged with the first square pipe, and the other end of the crescent plate is hinged with the second square pipe, so that the rotating angle of the pedal can be controlled, the effect of fixing the angle is achieved, and the pedal is safer and more stable; when the handrail is not used, the handrail is fixed on the two first square tubes, and when the handrail is used, the vertical rod of the handrail penetrates through the clamping groove and is fixed on the two second square tubes, so that people can walk on the handrail by hands, and the caravan is safer to get on and off.
On the basis of the above scheme and as a preferable scheme of the scheme: the three pedals are distributed between the two groups of adjusting components at equal intervals; a first washer is clamped between the outer surface of the inner wall of the first square pipe and the end surface of the head of the first internal threaded pipe, so that the pedal can rotate around a first screw conveniently; a second gasket is clamped between the outer surface of the inner wall of the second square pipe and the end face of the head of the second internal threaded pipe, so that the pedal can rotate around a second screw conveniently. The number of the pedals can be 2, 3 and 4, 3 is the optimal choice, the practicality is the best, and the first gasket and the second gasket can make the pedal rotate more smoothly.
On the basis of the above scheme and as a preferable scheme of the scheme: the first hinge connecting piece comprises a first inner tooth bolt, a first nylon cushion, a first flat cushion, a first elastic cushion and a first outer tooth bolt; the second hinge connecting piece comprises a second inner tooth bolt, a second nylon cushion, a second flat cushion, a second elastic cushion and a second outer tooth bolt; one end of the crescent plate is provided with a third through hole, the first nylon pad is arranged in the third through hole, the other end of the crescent plate is provided with a first waist-shaped hole, and the second nylon pad is arranged in the first waist-shaped hole; the first inner tooth bolt penetrates through the first square pipe, the first nylon cushion, the first flat cushion and the first elastic cushion, the first outer tooth bolt is inserted into the first inner tooth bolt to form threaded connection and clamp the first square pipe and the crescent plate, and the crescent plate rotates around the first inner tooth bolt; the second inner thread bolt penetrates through the second square pipe, the second nylon cushion, the second flat cushion and the second elastic cushion, the second outer thread bolt is inserted into the second inner thread bolt to form threaded connection and clamp the second square pipe and the crescent plate, and the crescent plate rotates around the second inner thread bolt. One end of the crescent plate rotates around the first square pipe through the first hinge connecting piece, the other end of the crescent plate rotates around the second square pipe through the second hinge connecting piece, the first square pipe and the second square pipe are connected with the crescent plate, and under the condition that the rotation of the pedal is not influenced, the crescent plate can play a limiting role and is used for fixing the angle of the pedal, so that people can not shake when getting on or off the motor home; the first hinge and the second hinge can enable the crescent plate to rotate more smoothly;
on the basis of the above scheme and as a preferable scheme of the scheme: the number of the first through holes is six, and the six first through holes are arranged in two rows and are distributed in parallel in the middle of the crescent plate; the other end of the crescent plate is also provided with a fourth through hole; the first square pipe is provided with a fifth through hole corresponding to the fourth through hole, and the pin is inserted into the fourth through hole and the fifth through hole to form fixation, so that the first square pipe is attached to the second square pipe. The six first through holes are convenient for adjusting different positions;
on the basis of the above scheme and as a preferable scheme of the scheme: the top of the first square pipe is provided with a hook; the bottom of the hook is bent to form a connecting section, and the connecting section wraps the first square pipe and is fixedly connected by using a rivet; the top of the hook is used for being placed on a required plane to go upward, and the top of the hook is provided with a groove. The hook avoids the aluminum ladder from sliding, and people cannot be injured;
on the basis of the above scheme and as a preferable scheme of the scheme: the hook comprises a first plate body, a second plate body and a third plate body; the two edges of the second plate body are respectively connected with the first plate body and the third plate body, and grooves are formed in the top of the first plate body and the top of the third plate body.
On the basis of the above scheme and as a preferable scheme of the scheme: the bottom of the first square tube is provided with a concave foot hoof; the first pin shaft penetrates through two side plates of the foot shoe to form hinged connection with the first square tube, and the bottom plate of the foot shoe is used for being in contact with the ground. The foot hoofs enable the aluminum ladder to be firmly contacted with the ground, the supporting performance is better, and people get on or off the motor home more stably;
on the basis of the above scheme and as a preferable scheme of the scheme: the included angle between the pedal and the horizontal plane is 0-45 degrees. Can adapt to most road conditions.
Compared with the prior art, the utility model outstanding and profitable technological effect is:
the utility model discloses a take adjustable aluminium ladder of lightweight of handrail, through the first internal thread pipe and the second internal thread pipe of footboard of foretell first side's pipe and second side's pipe hinged joint respectively, realize that first side's pipe controls first internal thread pipe and rotates, second side's pipe controls second internal thread pipe and rotates for control footboard and the contained angle that the horizontal plane becomes, adapt to the road surface of multiple slope; the aluminum ladder is folded, the handrail can be fixed on the two square pipes, the folding is convenient, the aluminum ladder is unfolded, the handrail is fixed on the first square pipe and the second square pipe, the supporting can be given to people, and the getting on and off of the motor home are safer; one end of the crescent plate is hinged with the first square pipe, and the other end of the crescent plate is hinged with the second square pipe, so that the rotating angle of the pedal can be controlled, the effect of fixing the angle is achieved, and the pedal is safer and more stable; the first washer and the second washer can enable the pedal to rotate more smoothly; one end of the crescent plate rotates around the first square pipe through the first hinge connecting piece, the other end of the crescent plate rotates around the second square pipe through the second hinge connecting piece, the first square pipe and the second square pipe are connected with the crescent plate, and under the condition that the rotation of the pedal is not influenced, the crescent plate can play a limiting role and is used for fixing the angle of the pedal, so that people can not shake when getting on or off the motor home; and the first and second hinges can make the crescent plate rotate more smoothly.
Drawings
Fig. 1 is a schematic view of a part of the structure of the present invention.
Fig. 2 is a schematic view of the overall furling structure of the present invention.
Fig. 3 is a schematic view of a part of the structure of the present invention.
Fig. 4 is a schematic view of the overall development structure of the present invention.
Fig. 5 is a partial schematic structural diagram of the present invention.
Fig. 6 is a schematic diagram of a partial explosion structure of the present invention.
Fig. 7 is a partial structural schematic diagram of the present invention.
Fig. 8 is a schematic structural view of a first hinge connector according to the present invention.
Fig. 9 is an exploded view of the first hinge joint of the present invention.
Fig. 10 is a schematic view of the hook structure of the present invention.
Fig. 11 is a schematic view of the fastener structure of the present invention.
Reference numerals: the pedal 01, the first internally threaded tube 010, the second internally threaded tube 011, the reinforcing rib 012, the first square tube 02, the fifth through hole 020, the first rivet nut 021, the second square tube 03, the second through hole 030, the second anchor nut 031, the first screw 04, the first washer 040, the second screw 05, the second washer 050, the crescent plate 06, the first through hole 060, the third through hole 061, the first kidney-shaped hole 062, the fourth through hole 063, the pin 07, the first hinge joint 08, the first internally threaded bolt 080, the first nylon washer 081, the first flat washer 082, the first spring washer 083, the first externally threaded bolt 084, the hook 09, the first plate 090, the second plate 091, the third plate 092, the groove 093, the hoof 10, the side plate 100, the bottom plate 101, the handrail 12, the upright post 120, the handrail 121, the clip fastener, the through groove 130, the lug 131, the through groove 132, and the hand screw 14.
Detailed Description
The present invention will be further described with reference to the following detailed description;
the embodiment provides a light adjustable aluminum ladder with handrails, which comprises a pedal 01, wherein the pedal is used for pedaling when people get on or off a motor home, and is made of a high-strength aluminum plate; a first internal threaded pipe 010 and a second internal threaded pipe 011 are arranged on the bottom surface of the pedal, the first internal threaded pipe and the second internal threaded pipe are arranged on the pedal in parallel, and internal threads are arranged inside the first internal threaded pipe and the second internal threaded pipe for connection; the front end and the rear end of the pedal are bent inwards to form bent plates, so that people are prevented from being cut by the smooth edge of the pedal;
the bottom surface of the pedal is also provided with a reinforcing rib 012, the reinforcing ribs are arranged on the first internal thread pipe and the second internal thread pipe, and the reinforcing ribs are used for reinforcing the strength of the pedal and prolonging the service life;
the left end and the right end of the pedal are hinged with adjusting components, and the two groups of adjusting components are symmetrically arranged on the two sides of the pedal and are used for rotating the included angle between the pedal and the ground; the adjusting components respectively control a first internal threaded pipe and a second internal threaded pipe on the pedal to realize adjustment of different angles of the pedal;
the adjusting assembly comprises a first square pipe 02 hinged with the first internal thread and a second square pipe 03 hinged with the second internal thread; the first square pipe drives the first internal threaded pipe to rotate, the second square pipe drives the second internal threaded pipe to rotate, and the pedal is rotated by matching the first square pipe with the second square pipe, so that the included angle between the pedal and the ground is changed; the first square pipe and the second square pipe are both made of aluminum alloy square pipes, so that the strength is high and the weight is light;
the first screw 04 penetrates through the inner wall of the first square pipe to form hinged connection with the head of the first internal threaded pipe; the second screw 05 penetrates through the inner wall of the second square pipe to form hinged connection with the head of the second internal threaded pipe; the first square tube drives the pedal to rotate around the second screw through the first screw, or the second square tube drives the pedal to rotate around the first screw through the second screw; the three pedals are distributed between the two groups of adjusting components at equal intervals, and the three pedals can be suitable for the distances between different grounds and the chassis of the motor home;
in order to enable the first square pipe or the second square pipe to rotate more flexibly, a first gasket 040 is clamped between the outer surface of the inner wall of the first square pipe and the head end face of the first internally threaded pipe, and the first gasket is made of rubber, so that the pedal can rotate around a first screw conveniently; a second washer 050 is clamped between the outer surface of the inner wall of the second square tube and the end face of the head of the second internal threaded tube, and the second washer is also made of rubber, so that the pedal can rotate around a second screw conveniently;
in order to make it safer for people to get on and off the motor home, the utility model is added with the handrail which is not available in the traditional aluminum ladder; the handrail 12 comprises two parallel vertical rods 120, a handrail 121 is connected between the tops of the two vertical rods, and the handrail is formed by bending a pipe; a first rivet nut 021 is fixed on the front wall of each first square pipe, a first anchor nut is respectively fixed on each of the two first square pipes, and the two first anchor nuts are oppositely arranged; the clamping piece 13 is fixed on the outer wall of the first square pipe and comprises a through groove 130 in the shape of Jiong, the bottom of the side wall of each of two ends of the through groove extends to form a lug 131, the lug is fixedly connected with the outer wall of the first square pipe, the clamping piece is formed by bending a sheet metal part, the clamping piece is convenient to process, a rivet penetrates through the lug to fix the clamping piece on the first square pipe to form riveting fixation, the through groove in the shape of Jiong and the outer wall of the first square pipe are encircled to form a clamping groove 132, and the vertical rod penetrates through the clamping; two second anchor pulling nuts 031 are arranged on the outer wall of the second square pipe;
the hand-screwed screw 14 penetrates through the vertical rod and is fixedly connected with the first rivet nut or the second rivet nut; when the aluminum ladder is folded and not used, the hand-screwed screw penetrates through the bottom of the vertical rod to form threaded connection with the first rivet nut on the first square tube, namely, the handrail is fixed on the aluminum ladder, so that the aluminum ladder does not occupy space and is convenient to carry; when the aluminum ladder is opened, the hand-screwed screw is firstly screwed off, the vertical rod of the handrail passes through the clamping groove, and then the hand-screwed screw passes through the bottom of the vertical rod to form threaded connection with the second rivet nut on the second square tube, so that a person can hold the handrail up and down, and the aluminum ladder is safer;
the first square pipe and the second square pipe are hinged through a crescent plate 06, and the crescent plate is used for fixing an angle formed between the pedal and the ground; the crescent plate keeps the first square pipe and the second square pipe from moving randomly, so that the pedal is prevented from rotating, and the crescent plate can also play a role in fixing and limiting the separation of the first square pipe and the second square pipe when the first square pipe and the second square pipe are jointed and folded;
the crescent plate is in a strip shape and is formed by bending, the crescent plate is made of an aluminum plate, one end of the crescent plate is hinged with the first square tube through a first hinge connecting piece, and the other end of the crescent plate is hinged with the second square tube through a second hinge connecting piece; the middle of the crescent is provided with a first through hole 060; the inner wall and the outer wall of the second square pipe are provided with second through holes 030 which are opposite; the pin 07 penetrates through the first through hole and the second through hole to form fixed connection;
the using method comprises the following steps: the first square pipe is separated from the second square pipe, the pedal is driven to rotate to a proper angle, the crescent plate also rotates, the pin penetrates through the first through hole and the second through hole to be fixed, the first square pipe, the crescent plate and the second square pipe are kept to be fixed, and the pedal cannot rotate;
in order to enable the crescent plate to be connected with the first square pipe and the second square pipe more conveniently; the first hinge joint 08 includes a first inner screw bolt 080, a first nylon pad 081, a first flat pad 082, a first elastic pad 083, and a first outer screw bolt 084; the second hinge connecting piece comprises a second inner tooth bolt, a second nylon cushion, a second flat cushion, a second elastic cushion and a second outer tooth bolt;
one end of the crescent plate is provided with a third through hole 061, the first nylon pad is arranged in the third through hole, the other end of the crescent plate is provided with a first waist-shaped hole 062, the second nylon pad is arranged in the first waist-shaped hole, and the two ends of the crescent plate respectively rotate around the corresponding nylon pads;
the first inner tooth bolt penetrates through the first square pipe, the first nylon cushion, the first flat cushion and the first elastic cushion, the first outer tooth bolt is inserted into the first inner tooth bolt to form threaded connection and clamp the first square pipe and the crescent plate, and the crescent plate rotates around the first inner tooth bolt; the first inner tooth bolt penetrates through the inner wall and the outer wall of the first square pipe, and the crescent plate and the first square pipe are clamped by the first outer tooth bolt to realize that the crescent plate rotates around the first inner tooth bolt; the bottom of the first inner thread bolt is provided with an inner thread for threaded connection, and the bottom of the first outer thread bolt is provided with an outer thread for threaded connection; the first nylon cushion can enable the crescent plate to rotate more smoothly;
a second inner thread bolt penetrates through the second square pipe, the second nylon cushion, the second flat cushion and the second elastic cushion, a second outer thread bolt is inserted into the second inner thread bolt to form threaded connection and clamp the second square pipe and the crescent plate, and the crescent plate rotates around the second inner thread bolt; the second inner tooth bolt penetrates through the inner wall and the outer wall of the second square pipe, the crescent moon plate and the second square pipe are clamped by the second outer tooth bolt, and the second nylon cushion is arranged in the first waist-shaped hole, so that the second inner tooth bolt can move in the first waist-shaped hole when the second square pipe rotates, the second square pipe is attached to and separated from the first square pipe, and the angle of the pedal can be rotated;
in order to adjust the rotating angle of the pedal in multiple gears, six first through holes are formed, and the six first through holes are arranged in two rows and are distributed in parallel in the middle of the crescent plate; the pedal rotates to a proper position, and the pin is inserted into the corresponding first through hole and the second through hole, so that the operation is convenient and quick;
in order to facilitate the collection and folding of the aluminum ladder, a fourth through hole 063 is also arranged at the other end of the crescent plate; a fifth through hole 020 corresponding to the fourth through hole is formed in the first square pipe, and a pin is inserted into the fourth through hole and the fifth through hole to be fixed, so that the first square pipe is attached to the second square pipe; the pin not only has the function of adjusting the angle of the pedal, but also has the function of folding and fixing the second square pipe;
the use process comprises the following steps: in a furled state, the top of the first square pipe is lapped on the motor home, the bottom of the first square pipe is abutted against the bottom surface, the first square pipe is attached to the second square pipe, the second inner tooth bolt is positioned at one end of the first waist-shaped hole, the pin penetrates through the fourth through hole in the crescent plate and is fixedly connected with the fifth through hole in the first square pipe, and the included angle between the pedal and the horizontal plane is 45 degrees; when the pedal is opened, the pin is pulled out, the crescent moon plate rotates around the first inner tooth bolt, the second inner tooth bolt moves in the first waist-shaped hole, the second square pipe is far away from the first square pipe and is placed at a proper position, the pin passes through the first through hole in the crescent moon plate and the second through hole in the second square pipe to form a fixed structure, the second square pipe is limited to rotate again, an included angle between the pedal and the ground is kept, and the pedal is inserted into the six first through holes at different positions according to the bottom surfaces with different gradients, so that the pedal is more practical; the included angle between the pedal and the horizontal plane is 0-45 degrees, so that the pedal can adapt to various road conditions, and has better practicability;
in order to enable the first square pipe to be more conveniently lapped on the motor home; the top of the first square pipe is provided with a hasp 09; the bottom of the hook is bent to form a connecting section, and the connecting section wraps the first square pipe and is fixedly connected by using a rivet; the top of the hook is used for being placed on a required plane to go upward, and the top of the hook is provided with a groove; the hook comprises a first plate 090, a second plate 091 and a third plate 092; the two edges of the second plate body are respectively connected with the first plate body and the third plate body, and grooves 093 are formed in the top of the first plate body and the top of the third plate body; the groove is convenient for the hitching and lapping on the motor home, the aluminum ladder is not easy to slide, and the safety is higher;
the bottom of the first square tube is provided with a concave foot hoof 10; a first pin shaft penetrates through two side plates 100 of the foot shoe to form hinged connection with a first square pipe, and a bottom plate 101 of the foot shoe is used for contacting with the ground; the ground of different slopes can have more firm support through the better contact of foot hoof, and the aluminium ladder is difficult for taking place to skid.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like refer to the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, or the orientation or position relationship that one skilled in the art conventionally understands, and are only for convenience of describing the present invention and simplifying the description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a take adjustable aluminium ladder of lightweight of handrail which characterized in that: the pedal comprises a pedal, wherein a first internal threaded pipe and a second internal threaded pipe are arranged on the bottom surface of the pedal; the left end and the right end of the pedal are hinged with adjusting components, and the two groups of adjusting components are symmetrically arranged on the two sides of the pedal and are used for rotating the included angle between the pedal and the ground;
the adjusting assembly comprises a first square tube hinged with the first internal threaded tube and a second square tube hinged with the second internal threaded tube; the first square pipe and the second square pipe are hinged through a crescent plate;
the first screw penetrates through the inner wall of the first square pipe to form hinged connection with the head of the first internal threaded pipe; the second screw penetrates through the inner wall of the second square pipe to form hinged connection with the head of the second internal threaded pipe;
handrails are fixed on the two first square pipes; the handrail comprises two parallel vertical rods, and a handrail is connected between the tops of the two vertical rods; a first rivet nut is arranged on the front wall of the first square pipe, a clamping piece is fixed on the outer wall of the first square pipe, and two second anchor nuts are arranged on the outer wall of the second square pipe; the clamping piece comprises a Jiong-shaped through groove, lugs extend from the bottoms of the side walls at the two ends of the through groove, the lugs are fixedly connected with the outer wall of the first square pipe, the Jiong-shaped through groove and the outer wall of the first square pipe enclose a clamping groove, and the vertical rod penetrates through the clamping groove to form limiting fixation; the hand-screwed screw penetrates through the vertical rod and is fixedly connected with the first rivet nut or the second rivet nut;
one end of the crescent plate is hinged with the first square pipe through a first hinge connecting piece, and the other end of the crescent plate is hinged with the second square pipe through a second hinge connecting piece; the middle of the crescent plate is provided with a first through hole; the inner wall and the outer wall of the second square pipe are provided with second through holes which are opposite; the pin passes through the first through hole and the second through hole to form fixed connection.
2. The light weight adjustable aluminum ladder with handrails of claim 1, wherein: the three pedals are distributed between the two groups of adjusting components at equal intervals; a first washer is clamped between the outer surface of the inner wall of the first square pipe and the end surface of the head of the first internal threaded pipe, so that the pedal can rotate around a first screw conveniently; a second gasket is clamped between the outer surface of the inner wall of the second square pipe and the end face of the head of the second internal threaded pipe, so that the pedal can rotate around a second screw conveniently.
3. The light weight adjustable aluminum ladder with handrails of claim 1, wherein: the first hinge connecting piece comprises a first inner tooth bolt, a first nylon cushion, a first flat cushion, a first elastic cushion and a first outer tooth bolt; the second hinge connecting piece comprises a second inner tooth bolt, a second nylon cushion, a second flat cushion, a second elastic cushion and a second outer tooth bolt; one end of the crescent plate is provided with a third through hole, the first nylon pad is arranged in the third through hole, the other end of the crescent plate is provided with a first waist-shaped hole, and the second nylon pad is arranged in the first waist-shaped hole; the first inner tooth bolt penetrates through the first square pipe, the first nylon cushion, the first flat cushion and the first elastic cushion, the first outer tooth bolt is inserted into the first inner tooth bolt to form threaded connection and clamp the first square pipe and the crescent plate, and the crescent plate rotates around the first inner tooth bolt; the second inner thread bolt penetrates through the second square pipe, the second nylon cushion, the second flat cushion and the second elastic cushion, the second outer thread bolt is inserted into the second inner thread bolt to form threaded connection and clamp the second square pipe and the crescent plate, and the crescent plate rotates around the second inner thread bolt.
4. The light weight adjustable aluminum ladder with handrails of claim 1, wherein: the number of the first through holes is six, and the six first through holes are arranged in two rows and are distributed in parallel in the middle of the crescent plate; the other end of the crescent plate is also provided with a fourth through hole; the first square pipe is provided with a fifth through hole corresponding to the fourth through hole, and the pin is inserted into the fourth through hole and the fifth through hole to form fixation, so that the first square pipe is attached to the second square pipe.
5. The light weight adjustable aluminum ladder with handrails of claim 1, wherein: the top of the first square pipe is provided with a hook; the bottom of the hook is bent to form a connecting section, and the connecting section wraps the first square pipe and is fixedly connected by using a rivet; the top of the hook is used for being placed on a required plane to go upward, and the top of the hook is provided with a groove.
6. The light weight adjustable aluminum ladder with armrest of claim 5, wherein: the hook comprises a first plate body, a second plate body and a third plate body; the two edges of the second plate body are respectively connected with the first plate body and the third plate body, and grooves are formed in the top of the first plate body and the top of the third plate body.
7. The light weight adjustable aluminum ladder with handrails of claim 1, wherein: the bottom of the first square tube is provided with a concave foot hoof; the first pin shaft penetrates through two side plates of the foot shoe to form hinged connection with the first square tube, and the bottom plate of the foot shoe is used for being in contact with the ground.
8. The light weight adjustable aluminum ladder with handrails of claim 1, wherein: the included angle between the pedal and the horizontal plane is 0-45 degrees.
CN202020429816.7U 2020-03-30 2020-03-30 Light adjustable aluminum ladder with handrails Active CN212359598U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114312582A (en) * 2022-01-24 2022-04-12 国唐汽车有限公司 Downward-turning type passenger car safety door

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114312582A (en) * 2022-01-24 2022-04-12 国唐汽车有限公司 Downward-turning type passenger car safety door

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