CN214221063U - Ladder supporting structure with multiple angle user state - Google Patents

Abstract

The utility model discloses a ladder bearing structure with multiple angle user state, it includes that the tip passes through a first supporting leg and the second supporting leg that the round pin axle is articulated together, the tip of first supporting leg is provided with first connecting plate and first stopper, the tip of second supporting leg is provided with second connecting plate and second stopper, all be provided with a round pin shaft hole that supplies the round pin axle to pass on first connecting plate and the second connecting plate, be provided with on the first stopper and support the first spacing face of holding terminal surface before the second connecting plate when first supporting leg is 180 expandes with the second supporting leg, be provided with on the second stopper and support the spacing face of second of holding terminal surface before the first connecting plate when first supporting leg is 180 expandes with the second supporting leg. The utility model discloses have multiple angle state, can use as folding ladder, can use as single support ladder again, improved the use altitude range of ladder greatly.

Description

Ladder supporting structure with multiple angle user state

[ technical field ] A method for producing a semiconductor device

The utility model belongs to the technical field of the ladder, especially, relate to a ladder bearing structure with multiple angle user state.

[ background of the invention ]

The foldable electrician ladder is a common tool, generally formed by connecting two single ladders through a hinge, opened to a fixed angle during working, folded when not in use, and convenient to store, carry and transport. The ladder is very widely applied, but has the defect of single function, and the unique fixed angle using mode cannot be suitable for the requirement of erecting the ladder on a special construction site.

Therefore, there is a need to provide a new ladder support structure with multiple angle use configurations to address the above-mentioned problems.

[ Utility model ] content

The utility model discloses a main aim at provides a ladder bearing structure with multiple angle user state has multiple angle state, can use as folding ladder, can use as single support ladder again, has improved the use altitude range of ladder greatly.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a ladder supporting structure with multiple angle use states comprises a first supporting leg and a second supporting leg, the end parts of the first supporting leg and the second supporting leg are hinged together through a pin shaft, a first connecting plate and a first limiting block are arranged at the end part of the first supporting leg, a second connecting plate and a second limiting block are arranged at the end part of the second supporting leg, a pin shaft hole for the pin shaft to pass through is arranged on each of the first connecting plate and the second connecting plate and is hinged through the pin shaft, a first limiting surface for supporting the front end surface of the second connecting plate when the first supporting leg and the second supporting leg are unfolded at 180 degrees is arranged on each first limiting block, a second limiting surface for supporting the front end surface of the first connecting plate when the first supporting leg and the second supporting leg are unfolded at 180 degrees is arranged on each second limiting block, a positioning pin is arranged on each first connecting plate, the second connecting plate is provided with a plurality of angle limiting insertion holes for the positioning pins to be inserted in different angle states.

Furthermore, the surface of the first connecting plate is attached to the surface of the second connecting plate.

Furthermore, a positioning pin column sleeve penetrating through the front surface and the rear surface is arranged on the first connecting plate, and the positioning pin is axially movably arranged in the positioning pin column sleeve.

Furthermore, the locating pin is sleeved with a compression spring which supports the locating pin towards the second connecting plate.

Furthermore, a limiting convex ring is arranged on the positioning pin, one end of the compression spring abuts against the limiting convex ring, and the other end of the compression spring abuts against the positioning pin sleeve.

Furthermore, the limiting convex ring is symmetrically provided with elastic marbles capable of elastically floating, and the inner hole wall of the positioning pin column sleeve is provided with limiting clamping grooves for limiting the elastic marbles.

Furthermore, the front end face of the limiting convex ring abuts against the surface of the second connecting plate to limit the moving position of the positioning pin.

Furthermore, the angle limiting jacks on the second connecting plate are three or more and respectively correspond to different angles, one angle corresponds to 0 degree, the other angle corresponds to 180 degrees, and the angle range corresponding to other angles is 30-75 degrees.

Compared with the prior art, the utility model relates to a ladder bearing structure with multiple angle user state's beneficial effect lies in: can realize fold condition, two support leg states and 180 single support state's use, can satisfy multiple high demands that climb, and can also realize folding function, improve application scope greatly.

[ description of the drawings ]

Fig. 1 is a schematic diagram of an explosive structure according to an embodiment of the present invention;

FIG. 2 is an exploded view of the first and second support legs of the embodiment of the present invention;

FIG. 3 is a schematic structural view of the embodiment of the present invention when the first support leg and the second support leg are in a 180 ° state;

fig. 4 is a schematic structural view of a positioning pin in an embodiment of the present invention;

the figures in the drawings represent:

100 a ladder support structure having a plurality of angular use positions;

1 a first support leg; 2 a second support leg; 3, a pin shaft; 4 a first connecting plate; 5, a first limiting block; 6 a second connecting plate; 7, a second limiting block; 8, pin shaft holes; 9 a first limiting surface; 10 a second limiting surface; 11 positioning pins; 12-degree limiting jacks; 13 pressing the spring; 14 positioning pin column sleeves and 15 limiting convex rings; 16 resilient marbles.

[ detailed description ] embodiments

The first embodiment is as follows:

referring to fig. 1-4, the ladder support structure 100 with multiple angles of use in this embodiment includes a first support leg 1 and a second support leg 2 hinged together at their ends by a pin 3, the first support leg 1 having a first connecting plate 4 and a first stopper 5 at its ends, the second support leg 2 having a second connecting plate 6 and a second stopper 7 at its ends, the first connecting plate 4 and the second connecting plate 6 each having a pin hole 8 for the pin 3 to pass through and being hinged by the pin 3, the first stopper 5 having a first stopper surface 9 for abutting against the front end surface of the second connecting plate 6 when the first support leg 1 and the second support leg 2 are unfolded at 180 °, the second stopper 7 having a second stopper surface 10 for abutting against the front end surface of the first connecting plate 4 when the first support leg 1 and the second support leg 2 are unfolded at 180 °, the first connecting plate 4 having a positioning pin 11, the second connecting plate 6 is provided with a plurality of angle limiting insertion holes 12 for inserting the positioning pins 11 in different angle states.

The surface of the first connecting plate 4 is attached to the surface of the second connecting plate 6. The positioning pin 11 is sleeved with a pressing spring 13 which supports the positioning pin towards the direction of the second connecting plate 6. The outer side surface of the first connecting plate 4 is fixedly provided with a positioning pin sleeve 14. A limit convex ring 15 is arranged on the positioning pin 11, one end of the compression spring 13 abuts against the limit convex ring 14, and the other end abuts against the positioning pin column sleeve 14. Elastic marbles 16 capable of elastically floating are symmetrically arranged on the limiting convex ring 15, and limiting holes (not marked in the figure) for limiting the elastic marbles 16 are arranged on the inner hole wall of the positioning pin column sleeve 14. When outwards carrying out the pulling locating pin 11 and targetting in place, elasticity marble 16 will be gone into spacing downthehole, and its purpose takes place to reset in order to prevent that locating pin 11 from carrying out angle modulation to first supporting leg 1 and second supporting leg 2 after pulling in place. The front end surface of the limit convex ring 15 is abutted against the surface of the second connecting plate 6 to limit the moving position of the positioning pin 11.

The first supporting leg 1 and the second supporting leg 2 are positioned on the same straight line and arranged at an angle of 180 degrees when being completely opened.

The angle limiting jacks 12 on the second connecting plate 6 are three and respectively correspond to three different angles, wherein one of the three angles is 0 degree, the other angle is 180 degrees, and the other angle is 30-45 degrees.

When the support device is not used, the first support leg 1 and the second support leg 2 are folded to form a 0-degree state; when the height needing to be climbed is not high, the first supporting leg 1 and the second supporting leg 2 are opened around the pin shaft 3, and when the height is opened to 35 degrees, the positioning pins 11 are inserted into the corresponding angle limiting insertion holes 12 by pressing to realize angle locking; when the climbing is needed to be performed at a higher height, the positioning pin 11 is pulled up to be separated from the angle limiting jack 12, then the first supporting leg 1 and the second supporting leg 2 are continuously propped open to be arranged in a straight line of 180 degrees, at the moment, the first limiting surface 9 is propped against the front end surface of the second connecting plate 6, the second limiting surface 10 is propped against the front end surface of the first connecting plate 4, actually, at the moment, the angles of the first supporting leg 1 and the second supporting leg 2 are fixed relative to the treading force direction of a user, and the positioning pin 11 is inserted into the corresponding angle limiting jack 12 to only play a role of auxiliary limiting.

The ladder support structure 100 with the use states of various angles in the embodiment can realize the use of a folded state, a double-support-leg state and a 180-degree single-support state, can meet various climbing height requirements, can also realize a folding function, and greatly improves the application range.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims (8)

1. A ladder support structure having a plurality of angular use positions, comprising: which comprises a first supporting leg and a second supporting leg, the end parts of which are hinged together through a pin shaft, the end part of the first supporting leg is provided with a first connecting plate and a first limiting block, the end part of the second supporting leg is provided with a second connecting plate and a second limiting block, the first connecting plate and the second connecting plate are both provided with a pin shaft hole for the pin shaft to pass through and are hinged through the pin shaft, the first limiting block is provided with a first limiting surface which supports against the front end surface of the second connecting plate when the first supporting leg and the second supporting leg are unfolded at an angle of 180 degrees, the second limiting block is provided with a second limiting surface which is abutted against the front end surface of the first connecting plate when the first supporting leg and the second supporting leg are unfolded at an angle of 180 degrees, the first connecting plate is provided with a positioning pin, and the second connecting plate is provided with a plurality of angle limiting insertion holes for the positioning pin to be inserted in different angle states.

2. A ladder support structure having a plurality of angular use positions as defined in claim 1, wherein: the surface of the first connecting plate is attached to the surface of the second connecting plate.

3. A ladder support structure having a plurality of angular use positions as defined in claim 1, wherein: the first connecting plate is provided with a positioning pin column sleeve penetrating through the front surface and the rear surface, and the positioning pin is axially movably arranged in the positioning pin column sleeve.

4. A ladder support structure as defined in claim 3 having a plurality of angular use positions: the locating pin is sleeved with a compression spring which supports the locating pin towards the second connecting plate.

5. A ladder support structure as defined in claim 4, having a plurality of angular use positions: and a limiting convex ring is arranged on the positioning pin, one end of the compression spring abuts against the limiting convex ring, and the other end of the compression spring abuts against the positioning pin sleeve.

6. A ladder support structure having a plurality of angular use positions as defined in claim 5, in which: elastic marbles capable of elastically floating are symmetrically arranged on the limiting convex ring, and limiting clamping grooves for limiting the elastic marbles are formed in the inner hole wall of the positioning pin column sleeve.

7. A ladder support structure having a plurality of angular use positions as defined in claim 5, in which: the front end face of the limiting convex ring abuts against the surface of the second connecting plate to limit the moving position of the positioning pin.

8. A ladder support structure having a plurality of angular use positions as defined in claim 1, wherein: the angle limiting jacks on the second connecting plate are three or more and respectively correspond to different angles, one angle corresponds to 0 degree, the other angle corresponds to 180 degrees, and the angle range of the other angle corresponds to 30-75 degrees.

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