CN214273473U

CN214273473U - Household ladder

Info

Publication number: CN214273473U
Application number: CN202022465565.0U
Authority: CN
Inventors: 李�杰; 王胜江; 于波
Original assignee: Tianjin Jinmao Household Items Co ltd
Current assignee: Tianjin Jinmao Household Items Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-09-24
Anticipated expiration: 2030-10-30

Abstract

The utility model provides a household ladder relates to the ladder field, including short ladder frame (1) in a left side, stull (2), short ladder frame (3) in the right side, long ladder frame (4) in a left side, footboard end separation blade (5), footboard (6), long ladder frame (7) in the right side, stull (2) include thick pipe part (24), thin pipe part (26) and connect dull and stereotyped (25) structure of two parts, have screw interlock region (22) on the stull at the both ends of thin pipe part (26). The main body of the pedal (6) adopts a conventional structure, the side parts of the support plate (64) supporting the foot support (66) and the left long ladder frame (4) of the inclined plate (65) corresponding to the pedal hole (62) are also provided with through holes, the inclined plate (65) and the left long ladder frame (4) are fixed by a fastener through hole, and the fastener can be a blind rivet. The setting of fagging and footboard can prevent to rotate and skid to improve the holding power, improve the security.

Description

Household ladder

Technical Field

The utility model relates to a ladder especially relates to the landing leg is ladder of glass steel material.

Background

Household ladders are widely used in various households, and bring convenience to goods storage and taking. The household ladder is mainly made of three materials, namely stainless steel, aluminum alloy and glass fiber reinforced plastic, and the glass fiber reinforced plastic material and the characteristics of lightness, softness and the like are popular through long-term use.

However, in use, it is found that the materials are soft and different from ferrous materials, so that the materials are abraded at the joint part which is frequently rubbed, and the looseness can be caused after a long time. Particularly, for the ladder with the glass fiber reinforced plastic support legs, the contact position of the supporting plates and the pedals can cause the pedals to rotate and slip due to abrasion, so that the supporting capacity of the ladder is influenced, and hidden dangers are brought to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide a stull and footboard structure to the ladder of glass steel landing leg and set up.

The utility model discloses a realize through following technical scheme:

ladder major structure includes short ladder frame in a left side, stull, short ladder frame in the right side, long ladder frame in a left side, footboard end separation blade, footboard, the long ladder frame in the right side, and parallel arrangement's short ladder frame in a left side and the short ladder frame in the right side are connected in the middle of it by the stull, and the long ladder frame in a left side and the long ladder frame in the right side of same parallel arrangement are connected in the middle of it by the footboard. The upper ends of the left short ladder frame and the right short ladder frame are respectively hinged with the left long ladder frame and the right long ladder frame to form a ladder main body structure.

The cross brace comprises a thick pipe part, a thin pipe part and a flat plate structure connecting the thick pipe part and the thin pipe part, reducing areas on the cross brace are arranged at two ends of the thick pipe part, and screw meshing areas on the cross brace are arranged at two ends of the thin pipe part. The cross brace installation large holes are formed in the positions, corresponding to the reducing areas on the cross braces, of the left short ladder frame and the right short ladder frame, the cross brace installation small holes are formed in the positions, corresponding to the screw meshing areas on the cross braces, of the left short ladder frame and the right short ladder frame, and the hole diameters are matched.

In the longitudinal direction, the thick pipe and the thin pipe are both longer than the flat plate, and the end parts of the thin pipes are abutted against the inner walls of the left short ladder frame and the right short ladder frame. The length of the reducing area on the cross brace is larger than the thickness of the left short ladder frame, so that the cross brace can be turned over after being inserted into the large hole for mounting the cross brace, and the left and right movement of the cross brace is prevented. The self-tapping screw passes through the cross brace mounting small hole and the screw meshing area on the cross brace to lock the thin tube part so as to prevent the rotation of the cross brace.

The main part of footboard adopts conventional structure, and the backup pad supports heel brace and swash plate, and the footboard predeformation region of backup pad tip passes the footboard installation macropore of the long ladder frame of left side correspondence position through the mesopore of footboard end separation blade, and the length in footboard predeformation region is greater than the thickness of long ladder frame of left side. And flanging the extending part to obtain a flanging area after the pedal is installed, wherein the flanging area is tightly attached to the ladder frame after the pedal is installed. The swash plate is longer than the heel brace, has seted up two footboard holes in its part that is longer than the heel brace, opens flutedly in the position that the long ladder frame in a left side corresponds with the swash plate, and during the swash plate inserted the recess, the position that the lateral part of the long ladder frame in a left side corresponds the footboard hole also opened flutedly, perforates with the fastener with swash plate and the long ladder frame in a left side fixed, and the fastener can be self-plugging rivet.

The stull all is provided with three with the footboard.

The utility model has the advantages that:

1. through the connection of the screw occlusion areas on the cross brace mounting small holes and the cross brace, the connection stability is enhanced, the shaking gap of the finished ladder is eliminated, the anti-rotation performance of the cross brace is enhanced, and meanwhile, the effect of traditional triangular support can also be played.

2. Through the locking of swash plate and left long ladder frame fixed, be equivalent to additionally increased the tie point of footboard with the ladder frame, the effectual anti rotation performance who improves the footboard.

Drawings

Fig. 1 shows a schematic perspective view according to an embodiment of the present invention.

Fig. 2 shows a cross brace structure diagram according to the present invention.

Fig. 3 shows a schematic view of a cross brace structure according to the present invention.

Fig. 4 shows a cross brace connection according to the present invention.

Fig. 5 shows a cross brace connection according to the present invention.

Fig. 6 shows a schematic structural diagram after the wale is connected according to the present invention.

Fig. 7 shows a pedal connection according to the present invention.

Fig. 8 shows a pedal connection according to the present invention.

In the figure: 1. a left short ladder frame; 11. mounting a large hole on the cross brace; 12. a small hole is arranged on the cross brace; 2. a cross brace; 21. a reduced diameter region on the wale; 22. a screw engaging area on the cross-brace; 23. flanging after the transverse support is installed; 24. a thick pipe section; 25. a flat plate; 26. a fine tube portion; 3. a right short ladder frame; 4. a left stile; 41. a large hole is arranged on the pedal; 42. a pedal mounting hole; 5. a pedal end block sheet; 6. a pedal; 61. a pedal pre-deformation region; 62. a pedal hole; 63. a flanging area after the pedal is installed; 64. a support plate; 65. a sloping plate; 66. a foot support; 7. a right long ladder frame; 8. a self-tapping screw.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.

As shown in the figure, the utility model discloses ladder major structure includes short ladder frame 1 in a left side, stull 2, short ladder frame 3 in the right side, long ladder frame 4 in a left side, footboard end separation blade 5, footboard 6, long ladder frame 7 in the right side, and parallel arrangement's short ladder frame 1 in a left side and short ladder frame 3 in the right side are connected by stull 2 between the two, and is same, and parallel arrangement's long ladder frame 4 in a left side and long ladder frame 7 in the right side are connected by footboard 6 between the two. The upper ends of the left short ladder frame 1 and the right short ladder frame 3 are respectively hinged with the left long ladder frame 4 and the right long ladder frame 7 to form a ladder main body structure.

The cross brace 2 comprises a thick pipe part 24, a thin pipe part 26 and a flat plate 25 structure connecting the two parts, wherein the two ends of the thick pipe part 24 are provided with reducing areas 21 on the cross brace, and the two ends of the thin pipe part 26 are provided with screw engaging areas 22 on the cross brace. The cross brace installation big hole 11 is all opened in the position that the undergauge region 21 on the cross brace is corresponded to left short ladder frame 1 and right short ladder frame 3, and cross brace installation aperture 12, aperture size looks adaptation are all opened in the position that the screw interlock region 22 on the cross brace is corresponded to left short ladder frame 1 and right short ladder frame 3.

In the longitudinal direction, the thick tube portion 24 and the thin tube portion 26 are both longer than the flat plate 25, and the ends of the thin tubes abut against the inner walls of the left short ladder frame 1 and the right short ladder frame 3. The length of the reducing area 21 on the cross brace is larger than the thickness of the left short ladder frame 1, so that a cross brace mounting rear flanging 23 can be formed after the reducing area is inserted into the cross brace mounting large hole 11, and the left and right movement of the cross brace 2 is prevented. Self-tapping screws are passed through the cross brace mounting apertures 12 and the screw engaging regions 22 on the cross braces to lock the thin tube sections 26 against rotation of the cross braces 2.

The main body of the pedal 6 adopts a conventional structure, a support plate 64 supports a foot support 66 and an inclined plate 65, a pedal pre-deformation area 61 at the end part of the support plate 64 penetrates through a pedal mounting large hole 41 at the corresponding position of the left long ladder frame 4 through a middle hole of a pedal end baffle 5, and the length of the pedal pre-deformation area 61 is greater than the thickness of the left long ladder frame 4. And flanging the extending part to obtain a pedal mounting rear flanging area 63, wherein the pedal mounting rear flanging area 63 is tightly attached to the ladder frame. The swash plate 65 is longer than the heel brace 66, has seted up two pedal holes 62 in its part that is longer than the heel brace 66, opens flutedly in the position that the long ladder frame 4 in a left side corresponds with swash plate 65, and during the swash plate 65 inserted the recess, the lateral part of the long ladder frame 4 in a left side corresponds the position in pedal hole 62 and also opens there is the through-hole, perforates with the fastener with swash plate 65 and the long ladder frame 4 in a left side fixed, and the fastener can be self-plugging rivet.

The wale 2 and the pedal 6 are provided with three.

To the mounting structure of stull 2, insert stull installation macropore 11 on the ladder frame with the undergauge region 21 on the stull, closely laminate with the ladder frame through the instrument turn-ups, stull installation aperture 12 on the ladder frame is concentric with the screw interlock region on the cross car this moment, uses self-tapping screw to penetrate, reaches the purpose that ladder frame and stull 2 closely laminate once more.

For the structure of the pedal 6, a pedal predeformation area 61 with a cut opening on the pedal 6 is inserted into a pedal mounting large hole 41 of the ladder frame, and the end of the pedal 6 is deformed and flanged by a tool to be tightly attached to the ladder frame. And the mounting holes 42 of the pedal 6 are aligned and fixed by fasteners. The anti-rotation performance of the pedal 6 is improved.

The utility model has the advantages that:

through the connection of the cross brace mounting small holes 12 and the screw meshing areas 22 on the cross braces, the connection stability is enhanced, the shaking gap of the finished ladder is eliminated, the rotation preventing performance of the cross braces 2 is enhanced, and meanwhile, the effect of traditional triangular support can also be achieved.

Through the locking of swash plate 65 and left long ladder frame 4 fixed, be equivalent to additionally having increased the tie point of footboard 6 with the ladder frame, the effectual anti rotation performance that improves footboard 6.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A household ladder, characterized in that: the ladder main body structure comprises a left short ladder frame (1), a cross brace (2), a right short ladder frame (3), a left long ladder frame (4), a pedal end blocking piece (5), a pedal (6) and a right long ladder frame (7), wherein the left short ladder frame (1) and the right short ladder frame (3) which are arranged in parallel are connected through the cross brace (2) between the left short ladder frame and the right short ladder frame; the left long ladder frame (4) and the right long ladder frame (7) which are arranged in parallel are connected through a pedal (6) between the left long ladder frame and the right long ladder frame, and the upper ends of the left short ladder frame (1) and the right short ladder frame (3) are respectively hinged with the left long ladder frame (4) and the right long ladder frame (7) to form a ladder main body structure;

stull (2) are including thick pipe part (24), thin pipe part (26) and connect flat board (25) structure of two parts, there are reducing region (21) on the stull at the both ends of thick pipe part (24), there is screw interlock region (22) on the stull at the both ends of thin pipe part (26), stull installation macropore (11) are all opened in the position that reducing region (21) on short ladder frame (1) in a left side and short ladder frame (3) in the right side correspond the stull, stull installation aperture (12) are all opened in the position that short ladder frame (1) in a left side and short ladder frame (3) in the right side correspond screw interlock region (22) on the stull, aperture size looks adaptation.

2. A domestic ladder as claimed in claim 1, wherein: in the longitudinal direction, the thick pipe part (24) and the thin pipe part (26) are both longer than a flat plate (25), the end parts of the thin pipes are abutted against the inner walls of the left short ladder frame (1) and the right short ladder frame (3), the length of a reducing area (21) on the cross brace is larger than the thickness of the left short ladder frame (1), a cross brace installation back flanging (23) can be formed after the reducing area is inserted into the cross brace installation large hole (11), so that the left and right movement of the cross brace (2) is prevented, and a self-tapping screw penetrates through the cross brace installation small hole (12) and a screw meshing area (22) on the cross brace to lock the thin pipe part (26), so that the rotation of the cross brace (2) is prevented.

3. A domestic ladder as claimed in claim 1, wherein: the main body of the pedal (6) adopts a conventional structure, a support plate (64) supports a foot support (66) and an inclined plate (65), a pedal pre-deformation area (61) at the end part of the support plate (64) penetrates through a pedal mounting large hole (41) at the corresponding position of the left long ladder frame (4) through a middle hole of a pedal end baffle sheet (5), the length of the pedal pre-deformation area (61) is greater than the thickness of the left long ladder frame (4), a flanging area (63) is obtained after flanging the extending part, the flanging area (63) is tightly attached to the ladder frame after pedal mounting, the inclined plate (65) is longer than the foot support (66), two pedal holes (62) are formed in the part of the inclined plate (65) which is longer than the foot support (66), a groove is formed in the position of the left long ladder frame (4) corresponding to the inclined plate (65), the inclined plate (65) is inserted into the groove, a through hole is also formed in the position of the side part of the left long ladder frame (4) corresponding to the pedal hole (62), the sloping plate (65) and the left long ladder frame (4) are fixed by a fastener through hole.

4. A domestic ladder as claimed in any one of claims 1 to 3, wherein: the number of the cross braces (2) and the number of the pedals (6) are three.

5. A domestic ladder as claimed in any one of claims 1 to 3, wherein: the ladder frame is made of glass fiber reinforced plastic.

6. A domestic ladder as claimed in claim 3, wherein: the fastener adopts blind rivets.