CN209924898U

CN209924898U - Reinforced ladder

Info

Publication number: CN209924898U
Application number: CN201920470112.1U
Authority: CN
Inventors: 王明刘
Original assignee: Xinxiang Dingchuang Metal Products Co Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-01-10
Anticipated expiration: 2029-04-09

Abstract

The utility model discloses a reinforced ladder, which relates to a ladder, and concretely comprises an outer foot rest, an outer upper, an inner upper and an inner foot rest, wherein two ends of the outer foot rest are respectively fixedly connected with the vertically arranged outer upper through T-shaped sheets, and a plurality of horizontal outer foot rests are uniformly and fixedly arranged between the outer upper; the inner walls of the outer upper are respectively provided with an inner upper in a sliding manner, a plurality of horizontal inner pedals are uniformly and fixedly arranged between the inner upper, and two ends of each inner pedal are fixedly connected with the inner side wall of each inner upper through reinforcing angles; the second pulley is installed to first connection piece on the interior step of bottom between the interior nation, and the first pulley is installed to second connection piece on the interior step of top between the interior nation. In the use process of the utility model, the strength of the ladder is effectively increased through the T-shaped sheets and the reinforcing angles, so that the service life of the ladder is greatly prolonged; the length of the ladder is convenient to adjust, and the practicability of the ladder is improved.

Description

Reinforced ladder

Technical Field

The utility model relates to a ladder specifically is a reinforcement type ladder.

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. According to the metal ladder in the prior art, the cross rods are mostly directly fixed between the thick rods through the rivets, but under the fixing mode, the rivets for connecting the cross rods and the thick rods are easy to loosen along with the prolonging of the service time, so that the service safety of the ladder is reduced, and the service life of the ladder is greatly shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reinforcement type ladder to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a reinforced ladder comprises outer steps, outer banners, inner banners and inner steps, wherein two ends of each outer step are fixedly connected with a vertically arranged outer banner through T-shaped sheets respectively;

the inner wall of the outer upper is slidably provided with an inner upper, a plurality of horizontal inner pedals are uniformly and fixedly arranged between the inner upper, two ends of each inner pedal are fixedly connected with the inner side wall of the inner upper through reinforcing angles, the reinforcing angles are fixedly connected with the inner pedals and the inner upper through rivets respectively, and the inner wall of the bottom end of the inner upper is fixedly provided with a fixing device through rivets;

the utility model discloses a lifting rope, including interior nation side, first connection piece, second pulley, the dead lever is connected with the one end of lifting rope, the other end of lifting rope passes through first pulley and second pulley in proper order and the outer foot of outer nation side top is through the mode fixed connection that ties up, the first connection piece is the ascending U type connection piece of opening on the interior foot of bottom between the interior nation side, the opening part of first connection piece is rotated through the pivot and is installed the second pulley, there is the second connection piece on the interior foot at top between the interior nation side through rivet fixed mounting, the second connection piece is the decurrent U type connection piece of opening, the opening part of second connection piece is rotated through the pivot and is installed first pulley, the front flank welding of the outer foot at outer nation side top has the dead lever, the dead lever is.

As a further aspect of the present invention: the bottom of outer nation all has the ladder foot through glue fixed mounting, and the ladder foot is formed by the rigid plastic preparation.

As a further aspect of the present invention: the bottom fixed mounting of interior nation has stopper and interior nation integrative taking shape, is equipped with protruding and outer nation integrative taking shape on the top inner wall of outer nation.

As a further aspect of the present invention: fixing device mainly comprises mount, pull ring, bail, fixture block and pin, and the mount passes through the inner wall bottom of upper and lower nation including fix with rivet installation, and the opening is seted up to the side of mount, installs the fixture block in the opening, and the opening part of mount rotates fixture block and mount through the pin to be connected, and the inside slidable mounting of mount has the bail of perpendicular to fixture block, and the through-hole is seted up to the position that the fixture block corresponds the bail, and the one end of bail stretches out the mount outer weld and has the pull ring.

As a further aspect of the present invention: and a rubber pad is fixedly arranged on the inner wall of the first connecting piece through glue.

As a further aspect of the present invention: the connection mode between the second connecting sheet and the inner pedal is the same as that between the first connecting sheet and the inner pedal.

Compared with the prior art, the beneficial effects of the utility model are that: in the use process of the utility model, the outer upper and the outer foot rest are connected by the T-shaped piece, and the inner upper and the inner foot rest are connected by the reinforced angle, thereby increasing the strength of the ladder and greatly prolonging the service life of the ladder; interior nation of bang can slide along outer nation of bang and rise under lifting rope's the effect of carrying to carry on spacingly to the nation of bang through fixing device, thereby reached the function of adjusting ladder length, promoted the practicality of ladder, and easy operation when adjusting.

Drawings

Fig. 1 is a schematic view of a reinforced ladder.

Fig. 2 is a schematic view showing a structure of a fixing device in a reinforced ladder.

Fig. 3 is a schematic structural view illustrating a connection manner of a first connection piece and an inner step of the reinforcement type ladder.

As shown in the figure: ladder foot 1, outer step 2, first connection piece 3, outer nation 4, stopper 5, fixing device 6, mount 61, pull ring 62, bail 63, fixture block 64, pin 65, interior nation 7, strengthen angle 8, T type piece 9, first pulley 10, second connection piece 11, dead lever 12, lifting rope 13, interior step 14, second pulley 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Please refer to fig. 1-3, in an embodiment of the present invention, a reinforced ladder includes an outer step 2, an outer upper 4, an inner upper 7 and an inner step 14, both ends of the outer step 2 are respectively fixedly connected to a vertically disposed outer upper 4 through T-shaped pieces 9, a plurality of horizontal outer steps 2 are uniformly and fixedly installed between the outer upper 4, the T-shaped pieces 9 are fixed to front sides of the outer upper 4 and the outer step 2 through rivets, the T-shaped pieces 9 have 6 riveting points, so that connection stability between the outer steps 2 and the outer upper 4 can be greatly improved, a ladder foot 1 is fixedly installed at a bottom end of each outer upper 4 through glue, the ladder foot 1 is made of hard plastic, and stability of the ladder placed on the ground is improved through the ladder foot 1;

inner banners 7 are slidably mounted on the inner walls of the outer banners 4, a plurality of horizontal inner steps 14 are uniformly and fixedly mounted between the inner banners 7, both ends of each inner step 14 are fixedly connected with the inner side wall of each inner banner 7 through reinforcing corners 8, the reinforcing corners 8 are fixedly connected with the inner steps 14 and the inner banners 7 respectively through rivets, each inner step 14 is reinforced through the reinforcing corners 8, the safety of the ladder is enhanced while the service life of the ladder is prolonged, the bottom end of each inner banner 7 is fixedly provided with a limiting block 5, the limiting blocks 5 and the inner banners 7 are integrally formed, protrusions are arranged on the inner walls of the top ends of the outer banners 4 and are integrally formed with the outer banners 4, the limiting blocks 5 are limited through the protrusions, so that the outer banners 4 are prevented from sliding out of the inner banners 7, fixing devices 6 are fixedly mounted on the inner walls of the bottom ends of the inner banners 7 through rivets, the extending function of the ladder when the inner banners 7 slide along the outer banners 4 is fixed through the fixing devices 6, thereby the ladder keeps the state of fixed length;

the fixing device 6 mainly comprises a fixing frame 61, a pull ring 62, a clamping nail 63, a clamping block 64 and a pin 65, the fixing frame 61 is fixedly arranged at the bottom end of the inner wall of the inner side 7 through a rivet, an opening is formed in the side surface of the fixing frame 61, the clamping block 64 is arranged in the opening, the clamping block 64 is rotatably connected with the fixing frame 61 through the pin 65 at the opening of the fixing frame 61, the clamping nail 63 perpendicular to the clamping block 64 is slidably arranged in the fixing frame 61, a through hole is formed in the position of the clamping block 64 corresponding to the clamping nail 63, the clamping block 64 is fixed, so that the fixture block 64 is lapped on the outer step 2 to fix the length of the ladder, one end of the fixture pin 63 extends out of the fixed mount 61 and is welded with the pull ring 62, when the length of the ladder needs to be adjusted, the clamp pin 63 is pulled out through the pull ring 62 to be separated from the clamping block 64, and the clamping block 64 can rotate under the action of external force, so that the function of limiting the length of the ladder is lost;

the inner pedal 14 at the bottom between the inner sides 7 is fixedly provided with a first connecting piece 3 through a rivet, the first connecting piece 3 is a U-shaped connecting piece with an upward opening, the opening of the first connecting piece 3 is rotatably provided with a second pulley 15 through a rotating shaft, the inner wall of the first connecting piece 3 is fixedly provided with a rubber pad through glue, thereby avoiding the mutual abrasion of the first connecting piece 3 and the inner pedal 14 due to the direct contact, reducing the service life of the ladder, the inner pedal 14 at the top between the inner sides 7 is fixedly provided with a second connecting piece 11 through a rivet, the second connecting piece 11 is a U-shaped connecting piece with a downward opening, the opening of the second connecting piece 11 is rotatably provided with a first pulley 10 through a rotating shaft, the connecting mode between the second connecting piece 11 and the inner pedal 14 is the same as that between the first connecting piece 3 and the inner pedal 14, the front side surface of the outer pedal 2 at the top of the outer side 4 is welded with a fixing rod 12, the fixed rod 12 is fixedly connected with one end of the lifting rope 13 in a binding mode, and the other end of the lifting rope 13 sequentially passes through the first pulley 10 and the second pulley 15 to be fixedly connected with the outer pedal 2 at the top of the outer upper 4 in the binding mode;

during the use, pulling lifting rope 13 is close to the one end of dead lever 12 to inner nation 7 is mentioned along outer nation 4's inner wall through lifting rope 13, reaches the function that makes the ladder extension, then inserts bail 63 in fixture block 64, and is fixed with fixture block 64, and fixture block 64 directly takes on outer step 2, makes inner nation 7 unable slide down along outer nation 4 under the action of gravity, thereby reaches and carries out the function fixed to ladder length.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention, and the following claims are therefore to be read in this light of the appended claims.

Claims

1. A reinforced ladder comprises outer steps (2), outer banners (4), inner banners (7) and inner steps (14), and is characterized in that two ends of each outer step (2) are fixedly connected with the vertically arranged outer banners (4) through T-shaped pieces (9), a plurality of horizontal outer steps (2) are uniformly and fixedly arranged between the outer banners (4), and the T-shaped pieces (9) are fixed on the front side surfaces of the outer banners (4) and the outer steps (2) through rivets;

the inner wall of the outer upper (4) is provided with inner upper (7) in a sliding manner, a plurality of horizontal inner pedals (14) are uniformly and fixedly arranged between the inner upper (7), two ends of each inner pedal (14) are fixedly connected with the inner side wall of the inner upper (7) through reinforcing angles (8), each reinforcing angle (8) is fixedly connected with the inner pedal (14) and the inner upper (7) through a rivet, and the inner wall of the bottom end of each inner upper (7) is fixedly provided with a fixing device (6) through a rivet;

a first connecting piece (3) is fixedly arranged on an inner pedal (14) at the bottom between the inner bonding pieces (7) through a rivet, the first connecting piece (3) is a U-shaped connecting piece with an upward opening, a second pulley (15) is rotatably arranged at the opening of the first connecting piece (3) through a rotating shaft, a second connecting piece (11) is fixedly arranged on the inner pedal (14) at the top between the inner bonding pieces (7) through a rivet, the second connecting piece (11) is a U-shaped connecting piece with a downward opening, a first pulley (10) is rotatably arranged at the opening of the second connecting piece (11) through a rotating shaft, a fixing rod (12) is welded on the front side surface of an outer pedal (2) at the top of the outer bonding piece (4), and the fixing rod (12) is fixedly connected with one end of the lifting rope (13) through a binding mode, the other end of the lifting rope (13) sequentially passes through the first pulley (10) and the second pulley (15) to be fixedly connected with the outer pedal (2) at the top of the outer upper (4) in a binding mode.

2. A reinforced ladder as claimed in claim 1, wherein the bottom ends of the outer banners (4) are each fixedly provided with a ladder foot (1) by glue, the ladder feet (1) being made of rigid plastic.

3. The reinforced ladder of claim 1, wherein the bottom end of the inner upper (7) is fixedly provided with a limit block (5), the limit block (5) and the inner upper (7) are integrally formed, and the inner wall of the top end of the outer upper (4) is provided with a protrusion, and the protrusion and the outer upper (4) are integrally formed.

4. The reinforced ladder of claim 1, wherein the fixing device (6) is mainly composed of a fixing frame (61), a pull ring (62), a clamping nail (63), a clamping block (64) and a pin (65), the fixing frame (61) is fixedly arranged at the bottom end of the inner wall of the inner side (7) through a rivet, an opening is formed in the side surface of the fixing frame (61), the clamping block (64) is installed in the opening, the clamping block (64) is rotatably connected with the fixing frame (61) through the pin (65) at the opening of the fixing frame (61), the clamping nail (63) perpendicular to the clamping block (64) is slidably installed in the fixing frame (61), a through hole is formed in the position, corresponding to the clamping nail (63), of the clamping block (64), and the pull ring (62) is welded outside the fixing frame (61).

5. A reinforced ladder according to claim 1, wherein a rubber pad is fixedly mounted on the inner wall of the first connecting piece (3) by means of glue.

6. A reinforced ladder according to claim 1, wherein the second connecting piece (11) is connected to the inner rung (14) in the same way as the first connecting piece (3) is connected to the inner rung (14).