CN210033256U

CN210033256U - Inclined ladder with adjustable gradient

Info

Publication number: CN210033256U
Application number: CN201920558408.9U
Authority: CN
Inventors: 徐显提
Original assignee: Guangdong Yuexin Ocean Engineering Technology Co Ltd; GUANGZDONG YUEXIN OCEAN ENGINEERING Co Ltd
Current assignee: Guangdong Yuexin Ocean Engineering Technology Co Ltd; GUANGZDONG YUEXIN OCEAN ENGINEERING Co Ltd
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-02-07
Anticipated expiration: 2029-04-23

Abstract

The utility model provides an inclined ladder with adjustable gradient, is provided with the arc wall on the ladder frame, and on the orientation of step footboard and two opposite sides that are dorsad to the user, one of them side articulates in arc wall centre of a circle department, and the opposite side can be followed the arc wall and rotated to can be fixed in its arbitrary position on the arc wall through locking device. When the inclined ladder is adjusted to different inclinations, the step footplate is rotated and is in a horizontal state, and then the step footplate is locked on the ladder frame by the locking device, so that the use requirements of different inclination environments can be met. The inclined ladder with the adjustable inclination has a simple structure, but effectively meets the use requirements of different inclinations, and improves the use range and the universality of the inclined ladder.

Description

Inclined ladder with adjustable gradient

Technical Field

The utility model relates to a cat ladder especially relates to an inclination can be adjusted and can keep step footboard to be in the inclined ladder of horizontality simultaneously.

Background

The ladder stand is a common appliance in daily life and industrial manufacturing of people, and can meet the requirement of people on high-altitude operation. The ladder stand comprises a ladder frame serving as a supporting main body and step pedals arranged on the ladder frame and used for being stepped by a user, and the step pedals are fixedly arranged on the ladder frame at intervals. When needs are scrambleed to climbing object (like wall body, boats and ships etc.), the user supports the bottom of cat ladder in ground, and the top leans on the climbing object, and the user can follow the cat ladder and climb to take the altitude. But this kind of cat ladder can only satisfy general daily use needs, to some operation requirement, the higher environment of degree of difficulty and security all requirements, this kind of cat ladder is difficult to satisfy. In the field of ship manufacturing, in order to meet the use requirements of different ship types, the length and the inclination of the outfitting inclined ladder are fixed, and the universality is extremely low. Because these outfitting inclined ladders must be in specific inclination angle, the step tread thereon can be in horizontal state, if only the inclination of the inclined ladder is adjusted alone, the step tread can be inclined, which is not favorable for the user to stand on the inclined ladder for operation.

Disclosure of Invention

An object of the utility model is to provide an inclination is adjustable and can keep the horizontal inclined ladder of step footboard simultaneously to satisfy the application of different environment and need.

Inclined ladder with adjustable gradient, including the ladder frame and install the step footboard on the ladder frame, wherein one side of step footboard articulates on the ladder frame, and it has the arc wall to open with the relative department of step footboard opposite side on the ladder frame, and the centre of a circle of arc wall is the articulated department of step footboard and ladder frame, has in addition to lock the step footboard in the locking device of arc wall optional position.

Inclined ladder with adjustable gradient, be provided with the arc wall on the ladder frame, on two opposite sides towards and user dorsad on the step footboard, wherein one side articulates in arc wall centre of a circle department, the arc wall rotation can be followed to the opposite side. When the inclined ladder is adjusted to different inclinations, the step footplate is rotated and is in a horizontal state, and then the step footplate is locked on the ladder frame by the locking device, so that the use requirements of different inclination environments can be met. The inclined ladder with the adjustable inclination has a simple structure, but effectively meets the use requirements of different inclinations, and improves the use range and the universality of the inclined ladder.

Drawings

Fig. 1 is a schematic structural view of an inclination-adjustable ramp.

Fig. 2 is a side view of the gradient adjustable ramp shown in fig. 1.

Fig. 3 is a schematic view of the matching structure of the step tread and the arc-shaped groove.

Fig. 4 is a schematic view of the connection structure of different inclined ladders.

Detailed Description

The utility model provides an inclined ladder with adjustable gradient, includes ladder frame 1 and installs step footboard 2 on the ladder frame, and wherein one side of step footboard articulates on the ladder frame, and the department of being relative on the ladder frame with step footboard opposite side opens has arc wall 3, and the centre of a circle of arc wall is the articulated department of step footboard and ladder frame, has in addition to lock the step footboard in the locking device of arc wall arbitrary position.

The gradient adjustable inclined ladder is provided with ear plates 4 which are respectively and fixedly arranged on a climbing target 10 and the ground 20, and the top end and the bottom end of the ladder frame 1 are respectively connected to the two ear plates in an assembling and disassembling way; the top and the bottom of the ladder frame 1 are respectively provided with a through hole opposite to the ear plate 4, and the fixing bolt 5 sequentially penetrates through the ear plate and the through hole on the ladder frame and a bolt rod of the fixing bolt is sequentially screwed with a fastening nut 6 and a stopping nut 7.

As shown in fig. 1-3, the ear plates are respectively and fixedly installed on a target climbing object (such as a wall, a ship and the like) and the ground, then the through holes at the top end and the bottom end of the ladder frame are opposite to the slotted holes on the ear plates, and then the ladder frame is fixedly installed between the two ear plates by using a fixing bolt, a fastening nut and a stopping nut, and is positioned at a required inclination; then the step footplate is rotated to be in a horizontal state, and then the step footplate is locked on the ladder frame by the locking device, thereby meeting the use requirements of environments with different inclinations. The inclined ladder with the adjustable inclination has a simple structure, but effectively meets the use requirements of different inclinations, and improves the use range and the universality of the inclined ladder; the use of structural components such as otic placode, fixing bolt both can simplify structure complexity, also be favorable to improving fastening strength and job stabilization nature, can also improve the change convenience of commonality and spare part simultaneously.

The two ends of the ladder frame are fixed on a target climbing object and the ground to meet the specific inclination requirement, but if the height of the climbing target is greater than the length of the inclined ladder, the inclined ladder cannot be effectively applied, and only inclined ladders with other lengths can be replaced, or the existing inclined ladder is processed to change the length of the inclined ladder; however, the former method results in the use of a large number of ramps of different lengths, while the latter method requires a large number of repeated machining operations, which increases the amount of unnecessary work, and for certain fields, such as outfitting ramps in the ship field, the ends of these ramps need to be specially treated, which is time-consuming to machine and results in a large increase in manufacturing costs. For this purpose, as shown in fig. 4, the tilt-adjustable inclined ladder has the same shape at the top end and the bottom end of the ladder frame 1, and is further provided with a connecting device 8 for fixing two different ladder frames to each other; through the use of this kind of structure, can refute a plurality of volumes at will to satisfy the use needs of different length. The top end and the bottom end of the ladder frame 1 can be in a straight line shape, can also be in a lightning shape with a break angle, and can also be in an arc shape as shown in fig. 4, the arc shape comprises a plurality of arc line sections which are sequentially connected end to end, the circle centers of at least two arc line sections are respectively positioned at two sides of the arc shape, and the structure can enable the two ladder frames to form more stable support and bearing, and is beneficial to improving the structural strength and the stability of connection of different ladder frames.

In addition, the locking device for locking the step tread or the connecting device for connecting two different ladder frames may be a buckle, a lock rod, a bolt and nut pair or other existing structures with a mutual locking function, and will not be described herein.

Claims

1. The utility model provides an inclined ladder with adjustable gradient, includes ladder frame (1) and installs step footboard (2) on ladder frame, its characterized in that: one side of the step pedal is hinged on the ladder frame, an arc-shaped groove (3) is arranged at the opposite position of the ladder frame and the other side of the step pedal, the circle center of the arc-shaped groove is the hinged position of the step pedal and the ladder frame, and a locking device for locking the step pedal at any position of the arc-shaped groove is arranged.

2. The tilt-adjustable ramp according to claim 1, wherein: the ladder is characterized in that the ladder comprises ear plates (4) which are fixedly arranged on a climbing target and the ground respectively, and the top end and the bottom end of the ladder frame (1) are detachably connected to the two ear plates respectively.

3. The tilt-adjustable ramp according to claim 2, wherein: the top end and the bottom end of the ladder frame (1) are respectively provided with a through hole opposite to the lug plate (4), the fixing bolt (5) sequentially penetrates through the through holes on the lug plate and the ladder frame, and a fastening nut (6) and a stopping nut (7) are sequentially screwed on a bolt rod of the fixing bolt.

4. The tilt-adjustable ramp according to claim 1, wherein: the top end and the bottom end of the ladder frame (1) are consistent in shape, and a connecting device (8) for fixing two different ladder frames mutually is arranged.

5. The tilt-adjustable ramp according to claim 4, wherein: the top end and the bottom end of the ladder frame (1) are arc-shaped, the arc-shaped comprises a plurality of arc-shaped line sections which are sequentially connected end to end, and the circle centers of at least two arc-shaped line sections are respectively positioned at two sides of the arc-shaped line sections.