CN111720040A

CN111720040A - Conveniently-lifted falling-preventing ladder with more stable gravity center

Info

Publication number: CN111720040A
Application number: CN202010603622.9A
Authority: CN
Inventors: 孔怀义
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2020-09-29

Abstract

The invention discloses a conveniently-lifted anti-falling ladder with a more stable gravity center, which relates to the technical field of ladders and comprises a main ladder, wherein one side of the main ladder is provided with a sliding groove, the inner wall of the sliding groove is connected with a pushing device in a sliding manner, the outer side of the pushing device is sleeved with a limiting frame, the limiting frame is fixedly connected with the main ladder, and one end of the bottom of one side, close to the sliding groove, of the main ladder is rotatably connected with a supporting plate. This convenient ladder that falls of preventing that promotes of focus more stable can diminish and is consolidated automatically when overturning backward easily at inclination, the effectual ladder of avoiding need not consume a large amount of physical power just can realize the rising of ladder after removing the ladder top, the efficient of rising ladder, the automation that realizes the ladder is ascending along the in-process that the ladder climbed upward at constructor, the efficiency of construction is improved, simultaneously lower to constructor's physical requirement, subsequent construction operation can not be influenced.

Description

Conveniently-lifted falling-preventing ladder with more stable gravity center

Technical Field

The invention relates to the technical field of ladders, in particular to a falling-preventing ladder which has more stable gravity center and is convenient to lift.

Background

Ladder, daily life apparatus, this instrument are done the limit by two long thick poles, and the horizontal pole that is fit for the climbing is crossed in the middle of for climb, the ladder divide into lift single ladder and lift double ladder. China CN109184541A discloses an aerial work ladder with functions of skid resistance, side fall prevention and danger alarm, a cross bar of the ladder is made into a telescopic structure, the ladder can be transversely stretched and widened according to requirements, the transverse projection distance of the ladder is increased, the gravity center bearing area of the ladder is increased, and the ladder is prevented from sideslipping. The Chinese invention CN102966300B discloses a lifting ladder, which realizes the purpose of lifting or descending the ladder by rotating a connecting screw rod to enable an upper sub-ladder to move relatively to a lower sub-ladder, but needs a large amount of physical power to lift the ladder after a constructor moves to the top of the ladder, has low efficiency of lifting the ladder, cannot realize the automatic lifting of the ladder in the process that the constructor climbs upwards along the ladder, reduces the construction efficiency, has high requirement on the physical power of the constructor, and is easy to influence the subsequent construction operation.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the conveniently-lifted anti-falling ladder with more stable gravity center, which can automatically reinforce when the inclination angle is reduced and the ladder is easy to overturn backwards, so that the problem that the ladder overturns backwards due to shaking is effectively avoided, a constructor can ascend the ladder without consuming a large amount of physical power after moving to the top of the ladder, the ladder ascending lifting efficiency is high, the automatic ascending of the ladder is realized in the process that the constructor ascends along the ladder, the construction efficiency is improved, the physical power requirement on the constructor is lower, and the subsequent construction operation is not influenced.

In order to achieve the purpose, the invention is realized by the following technical scheme: a conveniently-lifted anti-falling ladder with a more stable gravity center comprises a main ladder, wherein one side of the main ladder is provided with a sliding groove, the inner wall of the sliding groove is connected with a pushing device in a sliding manner, the outer side of the pushing device is sleeved with a limiting frame, the limiting frame is fixedly connected with the main ladder, one end, close to the sliding groove, of the bottom of one side of the main ladder is rotatably connected with a supporting plate, the pushing device is slidably connected with the supporting plate, the height of the ladder is prolonged after the main ladder is fixed with a wall and the ground, the contact point between the top of the ladder and the wall is increased, the angle between the ladder and the wall is reduced, a sliding block extrudes a lug downwards and the component force of a rotating plate is increased, the rotating plate extrudes a triggering elastic sheet to bend after the pressure of the triggering elastic sheet is increased, the rotating plate rotates downwards, the rotating plate can not support the sliding block, the main ladder comprises symmetrically installed side plates, a driving groove is formed in one side of each side plate, a gear is rotatably connected to the inner wall of each driving groove, pedals are rotatably connected between the side plates, rotating shafts of the pedals penetrate through the side plates and are fixedly connected with the gears, an auxiliary ladder is in transmission connection with one side of the main ladder close to a sliding groove, the rear pedal is placed on a wall and inclines along with the main ladder, a worker steps on the pedals when climbing along the main ladder, the pedals are fixed by a lower inclined plate after being rotated, the gears are driven to rotate when the pedals are rotated, the auxiliary ladder is driven by the gears to move and ascend, the worker can ascend the ladder without consuming a large amount of physical power after moving to the top of the ladder, the efficiency of ascending the ladder is high, and the automatic ascending of the ladder is realized when the worker climbs upwards, the efficiency of construction is improved, and the physical demands to constructor are lower simultaneously, can not influence subsequent construction operation.

Preferably, the pushing device comprises a sliding block, the sliding block is connected with the inner wall of the sliding groove in a sliding mode, a pushing ball is installed at the bottom of the sliding block, a triggering groove is formed in one side, close to the side plate, of the sliding block, a protruding block is fixedly connected to one side of the sliding groove, one side, far away from the sliding groove, of the protruding block is rotatably connected with a rotating plate, and the bottom of the rotating plate is connected with the inner wall of the sliding groove in a sliding mode through a triggering.

Preferably, the bottom of sliding block is rotated and is connected with the slope pole, the push ball is installed in the bottom of slope pole, the bullet groove has been seted up to the one side that the slope pole is close to the spout, inner wall one side fixedly connected with slope shell fragment of bullet groove, the one end fixedly connected with slide of bullet groove is kept away from to the slope shell fragment, slide and spout sliding connection.

Preferably, the supporting plate comprises a rotating block, a folded plate is fixedly connected to the top of the rotating block, and anti-skidding grooves are uniformly formed in one side, away from the main ladder, of the folded plate.

Preferably, the track frame is fixedly connected to one end of the top of the main ladder, the auxiliary ladder is connected with the inner wall of the track frame in a sliding mode, and a gear groove matched with the gear is formed in one side of the auxiliary ladder.

Preferably, the inner side of the side plate is located below the pedal and is fixedly connected with an inclined plate, and the inclined angle of the inclined plate is 110 degrees and 145 degrees.

Preferably, one side of the flap extends to the lower part of the pedal, and the flat plate area of the flap at the side far away from the main ladder is equal in height.

The invention provides a falling-preventing ladder which is more stable in gravity center and convenient to lift. The method has the following beneficial effects:

(1) the falling-preventing ladder with the gravity center more stable and convenient to lift can prevent the ladder from falling backwards, and effectively avoids the problem that the ladder falls backwards due to shaking.

(2) The ladder that falls of preventing of this convenient promotion that focus is more stable, the angle between ladder and the wall reduces and becomes automatic consolidating after the unstability, does not need other people to assist the reinforcement, has reduced the cost of labor, and intelligent degree is higher simultaneously.

(3) This convenient promotion that focus is more stable prevents falling ladder, constructor remove need not consume behind the ladder top a large amount of physical power just can realize the rising of ladder, the efficient of rising ladder.

(4) The falling-preventing ladder with the gravity center more stable and convenient to lift realizes the automatic ascending of the ladder in the process that constructors climb upwards along the ladder, and improves the construction efficiency.

(5) The falling-preventing ladder with the gravity center more stable and convenient to lift has lower physical requirement on constructors, and subsequent construction operation cannot be influenced.

(6) This focus is more stable prevents falling ladder that convenient promotion, the backup pad adopts the broken line shaped plate, make full use of the space between the footboard, increased the roughness of footboard a side simultaneously, can effectually avoid the backup pad to slide, increased the stability of device.

Drawings

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

FIG. 2 is a schematic view of the backside structure of the present invention;

FIG. 3 is a schematic view of a pushing device according to the present invention;

FIG. 4 is an enlarged view of the structure of FIG. 2;

FIG. 5 is a schematic view of the structure of the ascending device of the auxiliary ladder of the present invention;

fig. 6 is an internal cross-sectional view of the present invention.

In the figure: 1-main ladder, 2-sliding chute, 3-pushing device, 301-sliding block, 302-pushing ball, 303-triggering groove, 304-convex block, 305-rotating plate, 306-triggering elastic sheet, 4-limiting frame, 5-supporting plate, 501-rotating block, 502-folded plate, 503-anti-sliding groove, 6-side plate, 7-driving groove, 8-gear, 9-pedal, 10-track frame, 11-auxiliary ladder, 12-gear groove, 13-inclined rod, 14-elastic groove, 15-inclined elastic sheet, 16-sliding plate and 17-inclined plate.

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.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

Example one

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a convenient promotion that focus is more stable prevents falling ladder, includes main ladder 1, its characterized in that: spout 2 has been seted up to one side of main ladder 1, and the inner wall sliding connection of spout 2 has thrust unit 3, and thrust unit 3's outside cover is equipped with spacing frame 4, and spacing frame 4 and main ladder 1 fixed connection, one side bottom one end rotation that main ladder 1 is close to spout 2 are connected with backup pad 5, and one side transmission that main ladder 1 is close to spout 2 is connected with vice ladder 11.

During the use, vice ladder 11 risees along main ladder 1, and the angle of main ladder 1 and wall diminishes, and thrust unit 3 glides along spout 2, promotes backup pad 5 to the direction of keeping away from main ladder 1 until promoting backup pad 5 to with ground contact can.

Example two

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a convenient promotion that focus is more stable prevents falling ladder, including main ladder 1, spout 2 has been seted up to one side of main ladder 1, the inner wall sliding connection of spout 2 has thrust unit 3, thrust unit 3's outside cover is equipped with spacing frame 4, spacing frame 4 and main ladder 1 fixed connection, main ladder 1 is close to one side bottom one end of spout 2 and rotates and is connected with backup pad 5, thrust unit 3 and backup pad 5 sliding connection, thrust unit 3 includes sliding block 301, sliding block 301 and spout 2's inner wall sliding connection, sliding block 301's bottom is installed and is pushed away ball 302, sliding block 301 has been offered near one side of curb plate 6 and has been triggered groove 303, one side fixedly connected with lug 304 of spout 2, one side that spout 2 was kept away from to lug 304 is rotated and is connected with commentaries on classics board 305, the bottom of commentaries on classics board 305 is.

When the ladder is used, the height of the ladder is prolonged after the main ladder 1 is fixed with a wall and the ground, the contact point between the top of the ladder and the wall is raised, the angle between the ladder and the wall is reduced, the component force of the sliding block 301 extruding the convex block 304 and the rotating plate 305 downwards is increased, the rotating plate 304 extrudes the triggering elastic sheet 306 to be bent after the pressure of the triggering elastic sheet 306 is increased, the rotating plate 304 rotates downwards, the sliding block 301 cannot be supported by the rotating plate 304, the sliding block 301 descends along the sliding groove 2, the supporting plate 5 is extruded by the pushing ball 302 until the supporting plate 5 is extruded to the horizontal direction, and the supporting plate 5 supports the ladder.

EXAMPLE III

Referring to fig. 1-4, the present invention provides a technical solution: on the basis of the second embodiment, the bottom of the sliding block 301 is rotatably connected with the inclined rod 13, the pushing ball 302 is installed at the bottom of the inclined rod 13, the elastic groove 14 is formed in one side, close to the sliding groove 2, of the inclined rod 13, the inclined elastic piece 15 is fixedly connected to one side of the inner wall of the elastic groove 14, the sliding plate 16 is fixedly connected to one end, far away from the elastic groove 14, of the inclined elastic piece 15, and the sliding plate 16 is slidably connected with the sliding groove 2.

When the ladder is used, the height of the ladder is increased after the main ladder 1 is fixed with a wall and the ground, the contact point between the top of the ladder and the wall is raised, the angle between the ladder and the wall is reduced, the component force of the sliding block 301 extruding the convex block 304 and the rotating plate 305 downwards is increased, the rotating plate 304 extrudes the triggering elastic sheet 306 to be bent after the pressure of the triggering elastic sheet 306 is increased, the rotating plate 304 rotates downwards, the sliding block 301 descends along the sliding groove 2 after the rotating plate 304 cannot support the sliding block 301, the sliding block 301 descends to the lower part of the limiting frame 4, the inclined rod 13 is extruded by the inclined elastic sheet 15 to rotate in the direction far away from the main ladder 1, the push ball 302 at the bottom of the inclined rod 13 pushes the support plate 5 farther until the support plate 5 is extruded to the horizontal direction.

Example four

Referring to fig. 1-4, the present invention provides a technical solution: on the basis of embodiment three, main ladder 1 includes the curb plate 6 of symmetry installation, driving groove 7 has been seted up to one side of curb plate 6, the inner wall of driving groove 7 rotates and is connected with gear 8, it is connected with footboard 9 to rotate between the curb plate 6, the pivot of footboard 9 runs through curb plate 6 and with gear 8 fixed connection, main ladder 1 is close to one side transmission of spout 2 and is connected with vice ladder 11, backup pad 5 includes turning block 501, the top fixedly connected with folded plate 502 of turning block 501, antiskid groove 503 has evenly been seted up to one side that main ladder 1 was kept away from to folded plate 502, the top one end fixedly connected with track frame 10 of main ladder 1, the inner wall sliding connection of vice ladder 11 and track frame 10, gear groove 12 with gear 8 looks adaptation is seted up to one side of vice ladder 11.

The inner side of the side plate 6 is positioned below the pedal 9 and is fixedly connected with an inclined plate 17, and the inclined angle of the inclined plate 17 is 110 degrees and 145 degrees.

One side of the flap 502 extends below the tread 9 and the flat area of the flap 502 on the side remote from the main ladder 1 is level.

When the ladder is used, the pedal 9 is placed on a wall, the ladder inclines along with the main ladder 1, a worker steps on the pedal 9 when climbing along the main ladder 1, the pedal 9 is fixed by the inclined plate 17 below after rotating, the gear 8 is driven to rotate when the pedal 9 rotates, and the gear 8 drives the auxiliary ladder 11 to move and ascend.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. A conveniently lifted anti-falling ladder with a more stable center of gravity comprises a main ladder (1) and is characterized in that: one side of the main ladder (1) is provided with a chute (2), the inner wall of the chute (2) is connected with a pushing device (3) in a sliding way, the outer side of the pushing device (3) is sleeved with a limiting frame (4), the limiting frame (4) is fixedly connected with the main ladder (1), one end of the bottom of one side of the main ladder (1) close to the chute (2) is rotatably connected with a supporting plate (5), the pushing device (3) is connected with the supporting plate (5) in a sliding way, the main ladder (1) comprises side plates (6) which are symmetrically arranged, a driving groove (7) is formed in one side of the side plate (6), a gear (8) is rotatably connected to the inner wall of the driving groove (7), a pedal (9) is rotatably connected between the side plates (6), a rotating shaft of the pedal (9) penetrates through the side plates (6) and is fixedly connected with the gear (8), one side of the main ladder (1) close to the sliding chute (2) is connected with an auxiliary ladder (11) in a transmission way.

2. A more center of gravity stabilized lift-facilitating fall-prevention ladder as set forth in claim 1 wherein: thrust unit (3) include sliding block (301), the inner wall sliding connection of sliding block (301) and spout (2), push away ball (302) are installed to the bottom of sliding block (301), one side that sliding block (301) are close to curb plate (6) has been seted up and has been triggered groove (303), one side fixedly connected with lug (304) of spout (2), one side rotation that spout (2) were kept away from in lug (304) is connected with commentaries on classics board (305), the inner wall sliding connection of bottom through triggering shell fragment (306) and spout (2) of commentaries on classics board (305).

3. A more center of gravity stabilized lift-facilitating fall-prevention ladder as set forth in claim 2 wherein: the bottom of sliding block (301) is rotated and is connected with slope pole (13), install the bottom at slope pole (13) in push ball (302), bullet groove (14) have been seted up to one side that slope pole (13) are close to spout (2), inner wall one side fixedly connected with slope shell fragment (15) of bullet groove (14), one end fixedly connected with slide (16) of bullet groove (14) are kept away from in slope shell fragment (15), slide (16) and spout (2) sliding connection.

4. A more center of gravity stabilized lift-facilitating fall-prevention ladder as set forth in claim 1 wherein: the supporting plate (5) comprises a rotating block (501), a folded plate (502) is fixedly connected to the top of the rotating block (501), and anti-skidding grooves (503) are uniformly formed in one side, far away from the main ladder (1), of the folded plate (502).

5. A more center of gravity stabilized lift-facilitating fall-prevention ladder as set forth in claim 1 wherein: the top one end fixedly connected with track frame (10) of main ladder (1), the inner wall sliding connection of vice ladder (11) and track frame (10), gear groove (12) with gear (8) looks adaptation are seted up to one side of vice ladder (11).

6. A more center of gravity stabilized lift-facilitating fall-prevention ladder as set forth in claim 1 wherein: the inner side of the side plate (6) is positioned below the pedal (9) and is fixedly connected with an inclined plate (17), and the inclined angle of the inclined plate (17) is 110-145 degrees.

7. A more center of gravity stabilized lift-facilitating fall-prevention ladder as set forth in claim 5 wherein: one side of the flap (502) extends to the lower part of the pedal (9), and the flat plate area of the flap (502) far away from one side of the main ladder (1) is equal in height.